Category: Hybrid

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Double Victory for Audi Hybrids at WEC round in Brazil [VIDEO]

Audi has remained unbeaten in the 2013 sports car season to date. The Audi R18 e-tron quattro hybrid sports car has won the fourth of eight rounds in the FIA World Endurance Championship (WEC). In addition, it claimed victory in the 12-hour classic at Sebring in March.

The race weekend in Brazil ended in victory for Marcel Fässler/André Lotterer/Benoît Tréluyer (CH/D/F) ahead of Loïc Duval/Tom Kristensen/Allan McNish (F/DK/GB). On clinching their success in the São Paulo 6 Hours, the winners reduced the gap to their team colleagues in the drivers’ standings by eight to 22 points.

After a flawless race, the current World Champions celebrated their second WEC win of the season following their success at Spa in May. 38,000 spectators watched Fässler/Lotterer/Tréluyer in car number ‘1’ cross the finish line at Interlagos with a three-lap advantage over their sister car.

The situation in the standings at the season’s midpoint has thus become more thrilling again after the Le Mans winners Loïc Duval (F), Tom Kristensen (DK) and Allan McNish (GB) had arrived with a 30-point advantage.

The significant gap in the race, though, does not reflect the true performance delivered by car number ‘2.’ In the early phase, Audi factory driver Allan McNish dominated the action. But then the drivers’ trio experienced an unusual streak of misfortune. In a safety car period, Tom Kristensen, after pitting, returned to the track behind a slower GT race car.

The nine-time Le Mans winner, who drove the fastest race lap as well, lost around half a minute because the car in front was not keeping the pace of the pack ahead. Loïc Duval subsequently took over the cockpit and was in the process of starting a recovery when, on lap 142 at the exit of the pit lane, he lost the right rear wheel of his car, which had gotten jammed while being mounted.

Thus, Duval had to complete one lap on three wheels. The resulting two stop-and-go penalties completed the misfortune of the leaders of the standings who thus lost four laps in total.

In the end though, Head of Audi Motorsport Dr. Wolfgang Ullrich had reason to be pleased with a race weekend that left nothing to be desired. Audi Sport Team Joest, on taking grid positions one and two, setting the fastest race lap and scoring a one-two result, achieved the maximum that was possible and celebrated the first victory in South America.

Only the eagerly awaited battle with Toyota did not take place. The challenger’s only race car had become involved in an accident as early as on lap 25 and, as a result, was forced to retire.

In three weeks from now, Audi Sport is aiming to continue its string of success. On September 22, the WEC will be racing on the circuit at Austin in the US state of Texas for the first time.

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Toyota Yaris Hybrid-R designed for Road or Track

Toyota has transformed the volume-selling Yaris hatch into a dynamic track or road car by injecting it with high-performance engineering and advanced hybrid technology inspired by the company's Le Mans racing program.

The Yaris Hybrid-R, which will make its world premiere at next week's Frankfurt Motor Show, is a showcase of ideas for the future development of hybrid technology to achieve maximum performance and increased driving pleasure.The concept car's hybrid powertrain combines a highly tuned 1.6-litre four-cylinder turbo engine and two powerful electric motors to provide total output of 313kW (420hp). The direct-injection turbo, which has been adapted to racing conditions, provides 224kW (300hp) of power and 420Nm of torque to drive the front wheels.

It was specifically developed by Toyota Motorsport GmbH according to FIA (International Automobile Federation) rules for a Global Race Engine to be used in different motorsport disciplines, such as the World Rally Championship and the World Touring Car Championship

At the rear of the Yaris Hybrid-R, each wheel is powered by a 45kW (60hp) electric motor, providing an "intelligent" electric four-wheel drive capability. The motors generate electricity during braking and supplement the petrol engine during acceleration.

As with Toyota's TS030 hybrid Le Mans race car, the energy recovered from braking is stored in a super capacitor. Its high power density and fast charge/discharge speed are perfectly suited to the requirements of sporty driving on a track, which requires brief and immediate bursts of power.

Track and road modes

The Yaris Hybrid-R driver can push a button on the steering wheel to select "road" mode for day-to-day driving or "track" mode for competition."Track" mode makes full use of available performance, with the rear electric motors able to reach a combined maximum power peak of 90kW (120 hp) for up to five seconds.A third 45kW electric motor, located between the engine and the six-gear sequential transmission, can operate as an advanced traction-control system.

At low speeds, or in a curve, when the engine power and torque exceed the grip potential of the front wheels, the motor can convert torque from the petrol engine into electric energy and direct it to the rear wheels.The twin rear electric motors can also enhance handling characteristics during cornering by altering the distribution of torque between the left and right rear wheels, achieving the same effect as an intelligent torque vectoring differential. Depending on the radius of the curve, the system can send more torque to the outside rear wheel, apply more braking force to the inside wheel or even brake and accelerate each wheel independently to promote a better driving line and to limit understeer.

Selecting "road" mode reduces engine output and the amount of energy distributed by the super capacitor. The hybrid system works seamlessly with the 1.6-litre turbo, especially during start-up phase at low rpm when the engine's efficiency is not yet optimum. The super capacitor can release the energy recovered under braking for a maximum duration of 10 seconds, while the total power of the two electric motors is limited to 30kW (40hp). Depending on the state of charge of the battery, the Yaris Hybrid-R can be operated in full electric mode for short distances, especially during parking operations.

The Toyota press conference at the Frankfurt Motor Show will take place in Hall 8, Stand D19, at 12:45pm (20:45pm AEST) on Tuesday 10 September.

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700 Hp Audi Sport Quattro Plug-In Hybrid concept bound for Frankfurt

Quattro is Audi and Audi is quattro – the brand and the technology are indelibly linked. In celebration of the 30th birthday of the Sport quattro, Audi will present its legitimate successor at the 2013 IAA in Frankfurt am Main. The Audi Sport quattro concept show car continues the grand quattro tradition, with a stunning coupe design and plug-in hybrid drive with a system output of 515 kW (700 hp).

quattro is more than just a technology – quattro is a philosophy. The term stands for driving safety and sportiness, technical competence and a dynamic approach to life. Since the debut of the "Ur-quattro" in 1980, Audi has sold more than five million cars with permanent all-wheel drive, far more than any other premium manufacturer worldwide. The strengths of the quattro concept and its successes in racing have been impressively displayed for over three decades now.

One legendary Audi classic is the Sport quattro, which made its debut at the 1983 IAA and was designed as a homologation model for the World Rally Championship. With 225 kW (306 hp) and many technical innovations, it was the supercar of its day. The short wheelbase, which honed the handling, gave the Sport quattro an unmistakable look. The competition car wrote racing history. Walter Röhrl drove it to a convincing victory in the 1987 Pike's Peak International Hill Climb in Colorado, U.S.A.

Powerful performance: the plug-in hybrid drive

The plug-in hybrid drive makes the Audi Sport quattro concept a breathtakingly dynamic coupe. System output is 515 kW (700 hp); system torque is 800 Nm (590.05 lb-ft). Power flows through a modified eight-speed tiptronic to the quattro powertrain, which features a sport differential on the rear axle. According to the applicable standard, the show car consumes on average 2.5 liters of fuel per 100 kilometers (94.09 US mpg), a CO2 equivalent of 59 grams per kilometer (94.95 g/mile).

The combustion engine is a four-liter, twin-turbo V8. It produces 412 kW (560 hp) and 700 Nm (516.29 lb-ft) of torque. The cylinder on demand (COD) system, which deactivates four cylinders under part load, and a start-stop system make the sonorous eight-cylinder unit very efficient.

Located between the 4.0 TFSI and the transmission is a disc-shaped electric motor producing 110 kW and 400 Nm (295.02 lb-ft). It draws its traction energy from a liquid-cooled lithium-ion battery in the rear with a capacity of 14.1 kWh. The show car is charged via an Audi wall box, which uses intelligent charge management to ensure the optimal feed of energy to the lithium-ion battery. The Audi Sport quattro concept can cover up to 50 kilometers (31.07 miles) on electric power alone. An intelligent management system controls the interplay between the two drives as needed, and the driver can choose between various operating modes.

The customer can choose between various characteristics for the Audi Sport quattro concept depending on the operating and driving strategy. A choice of three modes is available. EV mode is for purely electric driving; Hybrid mode for maximum efficiency and Sport mode for maximum performance.

In EV mode, only the electric motor is active. With a peak electric output of 110 kW and 400 Nm (295.02 lb-ft) of torque, electric driving both inside and outside the city is possible. An active accelerator indicates the transition to hybrid operation to the driver so that he/she can consciously control the switch between electric and hybrid vehicle.

In Hybrid mode, environmental and route data are used to compute the optimal use of the electric motor and combustion engine for fuel efficiency and implement this via the operating strategy. If navigation is active, the route is optimized for efficiency. This mode also includes the ability to customize the operating strategy. If the driver wants to retain a certain amount of electric range or to drive certain route segments on electric power, they can use the Hold or Charge function to precisely adjust the charge of the battery even without charging from the power grid.

In Sport mode, the operating strategy sets the drive system for maximum power and performance. The electric boost function supports the combustion engine in all driving situations. The energy management system ensures that the battery always has sufficient charge.

When the V8 and the electric motor work together, the Audi Sport quattro concept accelerates from 0 to 100 km/h (62.14 mph) in 3.7 seconds – much like the powerful Audi rally cars once did. Its top speed is 305 km/h (189.52 mph).

The lightweight construction concept also plays a large part in this dynamic performance. The occupant cell combines ultra-high-strength steel panels and cast aluminum structural elements. The doors and fenders are made of aluminum, and the roof, the engine hood and the rear hatch are made of carbon fiber-reinforced polymer. The result is a curb weight including the battery pack of just 1,850 kilograms (4,078.55 lb).

The show car's chassis is easily able to handle the drive system's power. Handling is as dynamic as it is stable. The front suspension features five control arms per wheel; the rear suspension follows the Audi track-controlled trapezoidal link principle. Tautly tuned springs and dampers connect the Audi Sport quattro concept firmly to the road. The dynamic steering varies its ratio as a function of driving speed. The brake calipers grip large, carbon fiber-ceramic brake discs, and the tire format is 285/30 R 21.

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Production-ready Porsche 918 Spyder will debut @ Frankfurt [VIDEO]

The Porsche 918 Spyder is celebrating its debut at the International Motor Show (IAA) in Frankfurt, Germany, 10 – 22 September. The super sports car with plug-in hybrid drive is not only a technology pioneer but also marks the beginning of a new era for sports car manufacturing. Never before has a super sports car designed for everyday use offered such an impressive bandwidth of dynamic performance combined with the fuel consumption of a compact car.

In setting this technological benchmark, the Porsche 918 Spyder is taking on a pioneering role similar to that of the 911 when it was first unveiled at the IAA 50 years ago. Appropriately, in honour of this anniversary, Porsche is presenting the limited edition "50 years 911" model. Based on the 911 Carrera S, this latest version of the iconic coupe combines traditional 911 features with state-of-the-art technology. On the subject of icons, Porsche is completing its line-up of sports cars at Frankfurt with the public unveiling of the new 911 Turbo – which, in turn, is 40 years after the turbocharged 911 was first shown.

In addition, the new generation of the Panamera Gran Turismo underlines the unique breadth of the Porsche range today. As the first plug-in hybrid in the luxury car market segment, the Panamera S E-Hybrid is further proof that Porsche is leading the field with its expertise in the development of fuel-efficient powertrain concepts for sports cars.

The outstanding combination of performance and efficiency for which Porsche is renowned remains consistently attractive to customers. Matthias Müller, President and CEO of Dr. Ing. h.c. F. Porsche AG recently said, "From January to July, we were able deliver around 95,300 new vehicles worldwide – that's 17% more than in the first seven months of 2012. We are therefore very confident about the next few months and we now firmly believe we will have sold more vehicles by the end of 2013 than we did in the previous year. Based on how things are going at the moment, we are set to have another record year – and that's in spite of the fact that the present economic climate is far from satisfactory."

2012 was the most successful year to date in the history of Porsche, with 143,096 vehicles sold and sales revenue of Euro 13.9 billion.

The Porsche genetic blueprint for the future: 918 Spyder with high-performance hybrid

The 918 Spyder is the continuation of the traditional Porsche DNA in a ground-breaking sports car concept. Designed from the start to be a high-performance hybrid, the 918 Spyder boasts an unprecedented combination of performance (offering the 887 hp output of a super sports car) and the virtually silent motion of an electric vehicle. The vehicle is able to accelerate from 0 – 62 mph in 2.8 seconds and offers an average standard fuel consumption of between 94 mpg and 85 mpg. The 918 Spyder also allows a combustion engine to be combined with an electric motor-based drive to further optimise the dynamic performance of the vehicle.

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Peugeot to unveil 208 HYbrid FE concept at Frankfurt

At the Frankfurt Motor Show, PEUGEOT and Total will unveil their technological concept, the 208 HYbrid FE, a full petrol hybrid with exceptional characteristics and without a Plug-in energy source.

The Research and Development teams the two partners rose brilliantly to the challenge proposed by establishing a remarkable level of performance, based on a production PEUGEOT 208 hatchback: 0 to 100km/h / 0 to 62mph in 8.0 seconds and CO2 of just 49g/km over the official NEDC European Drive Cycle (Combined Cycle figure). Numerous innovations are implemented in several areas:

  • Aerodynamic properties: improvements of 25% for the CdA,
  • Weight: reduction of 20%,
  • Powertrain: 10% improvement in fuel economy,
  • Hybridisation: recovery of 25% of the energy over one drive cycle.

    The 208 HYbrid FE project combines ideas which until now acted against each other - Fuel Economy and Fun&Efficient, reason and driving pleasure - giving a preview of the vehicles of tomorrow.

    "The 208 HYbrid FE project is essential as it explores solutions for reaching the bar of 2l/100km. It also showcases our R&D work with our historic partner Total. Together, we are developing more economical vehicles, we are winning victories all over the world. Together, we are making good progress." Maxime Picat, Director General, Automobiles Peugeot

    "With the 208 HYbrid FE, PEUGEOT and Total are combining their expertise to offer the technical solutions of tomorrow. Energy efficiency is a strategic aspect for our Group as it is at the heart of the expectations of our customers, who wish to enjoy the benefits of efficiency and yet retain driving pleasure. It is also a response to contemporary environmental challenges and the means of preserving fossil fuels, which are precious resources." Philippe Boisseau, member of the Executive Committee, President of Marketing & Services and New Energies department at Total

    Since 1995, PEUGEOT and Total have been working extensively together to significantly increase fuel economy, improve CO2 emissions and the TCO (Total Cost of Ownership) of motor vehicles. For PEUGEOT, this is a long-standing environmental policy. With this commitment, in 2013 the Marque is reducing still further the weighted average emissions of CO2 of its European ranges: by the end of May it was 116.3g/km, compared to 121.5g/km in 2012.

    Total's researchers are continually working on developing future motor vehicle fuels and lubricants.

    The Group provides PEUGEOT and its networks worldwide with FE (Fuel Economy) lubricants: by reducing friction in the combustion engine, these lubricants have contributed to a 5% reduction in CO2 emissions in the last ten years with PEUGEOT engines. The Total Excellium top-of-the-range fuels also contribute to improving fuel economy.

    The objective of the 208 HYbrid FE is to combine real driving pleasure with low CO2 emissions. More precisely, the intention is to halve the CO2 emissions of the PEUGEOT 208, equipped with the 1.0- litre VTi 68 and to provide it with acceleration comparable to a performance hatchback, so quite a challenge!

    The challenge is made all the greater for the teams of the 208 HYbrid FE project as the production PEUGEOT 208 is already renowned for its weight-saving design and its latest-generation engines that allow it to offer a high-level driving experience.

    To rise to this challenge, Total and PEUGEOT therefore combined their capacity for innovation in all areas capitalising on the virtuous circle initiated by the hatchback.

    "The goal of 49g and acceleration from rest in 8.0 seconds is as difficult to achieve as victory on the other side of the world. The small team consisting of the best experts in each of the areas brought all of its creativity and enthusiasm into play, and we did it!" Bruno Famin, Director, PEUGEOT Sport

    The 208 HYbrid FE, all part of the Marque's hybrid strategy
    The policy goal in terms of CO2 is ambitious. It involves achieving 95g/km on weighted average of the new vehicles sold in Europe in 2020. To rise to this challenge without sacrificing driving pleasure, PEUGEOT is investing in several technologies which are already present on its vehicles and achieving substantial progress: continuous improvement of the efficiency of the internal combustion engines, down-sizing strategy, widespread use of the Stop & Start, electric drive ...

    The HYbrid4 diesel-electric hybridisation, is part of this process. Launched as a world first by PEUGEOT on the 3008 Crossover, it has since been extended to the 508 RXH and the 508 Saloon. Over 28,000 customers of the HYbrid4 technology have discovered an new driving pleasure which combines performance, simplicity of use, silent-driving and reducing environmental impact with CO2 emissions from 88g/km.

    With the 2008 HYbrid Air, PEUGEOT is innovating once more in the interests of the environment and of its customers in all of its markets. In fact, this breakthrough technology combines petrol and compressed air to fulfil customer expectations and rise to the challenges facing the motor industry.

    On the current generation of B segment vehicles, the HYbrid Air considerably improves fuel economy and reduces CO2 emissions. In fact, on completion of the homologated Drive Cycle tests, the figures are set at just 2.9l/100km (97.4mpg) and 69g/km. This technology is a key step towards the goal of reducing fuel consumption to just 2.0l/100km (141.2mpg).

    The 208 HYbrid FE combines innovations which will make it possible to achieve this record figure.

    PEUGEOT style, naturally efficient
    Fluidity is part of the Marque's stylistic heritage, it is in its DNA. On the 208 HYbrid FE, the aerodynamics experts took the exercise to an extreme. So, the Cd improves by 25%, to a value slightly lower than 0.25 and a real feat on a conventional vehicle where the passenger space and boot are maintained!

    To achieve this, the air is parted by the 'floating grille' redesigned for permeability and reduced by 40% to just 5dm². In fact, as the engine has been modified for efficiency, it duly requires less cooling.

    On the body sides, any flow disrupting components has been eliminated to help improve the aero performance. The tyres, specially developed by Michelin, are of the Tall&Narrow type, ie: of large diameter and narrow width. They are fitted on 19" alloy wheels on which the carbon aerodynamic flaps fill the space between each spoke.

    Cameras provide the rear vision, the image being reproduced on board on the interior mirror reminiscent of sporting disciplines like endurance racing. The rear track also contributes to this efficiency by being narrower by 40mm, further reducing the Cd. Finally, the design of the roof extends in an almost horizontal movement leading into the tailgate spoiler.

    The rear aspect, with chamfered edges, has an air deflector in its lower section. It deflects the airflow which passes under the vehicle without hindrance due to the completely flat floor.

    Finally, to reduce its environmental footprint as much as possible, the LED lamps of the 208 HYbrid FE have thin vertical fins, inspired by the Onyx Concept supercar. These features minimise the air flow turbulence.

    A considerable reduction in weight: 20%
    When it was launched, the PEUGEOT 208 hatchback shook up the segment, notably due to its light weight - from only 975kg at the Access level. This performance is remarkable, but in the future vehicles will need to be even lighter while still providing the high levels of comfort and safety.

    "Reducing the weight was a primary area of consideration. To achieve the 20% reduction in the weight of the vehicle we carried out a study part by part and equipped the 208 HYbrid FE with the most innovative materials from Hutchinson, CCP Composites and Total's Polymers activity. This process is even more virtuous as it does not sacrifice any of the safety and comfort used in the vehicle while introducing real innovations." Philippe Girard, Scientific Department Representative, Total Composite materials

    The 208 HYbrid FE benefits from the latest material innovations developed by the Polymers Division of the Refining-Chemicals department at Total, as well as by its two subsidiaries CCP Composites and Hutchinson.

    Taken from the end of the assembly line, the 208 retains its metal structure. Composite components replace bodywork panels and the floor, further reducing the weight of the body shell from 295 to 227kg. The one-piece outer skin (weighing just 20kg), the flat base (8kg), the door panels (c2kg) and the lower front panel are made from carbon fibre. The bonnet (5kg) and the wings (c2.1kg) are constructed from a composite VER/Carbon, a material which is half the weight but with comparable structural properties. It is obtained from a new type of resin which can be used untreated, painted or colour-dyed.

    Finally, with the exception of the door windows, the glazing uses polycarbonate to further save 5kg.

    The 208 HYbrid FE innovates in its use as this material has up until now be reserved for headlight lenses. It reduces the weight by more than 50% compared to conventional glass.

    Innovative suspension and wheels
    The 208 HYbrid FE rests on innovative pseudo MacPherson suspension with a 'glass fibre resin' composite transverse located blade. It replaces several components: suspension springs, lower wishbones and anti-roll bar. The front blade also has varying flexibility along its length. Designed and produced by Hutchinson, using these two blades saves 20kg.

    Due to their dimensions, the 145/65 R19 wheels themselves reduce the rolling resistance by 20%. They also require less effort on the steering wheel to direct them, making steering assistance superfluous: saving in space under the bonnet, fuel consumption and extra weight. The wheels are fitted onto low friction bearings assisted by special Total grease.

    The wheel rims house large brake discs 380mm in diameter and 9.6mm thick. They are rigged with two-piston callipers, 44.5mm at the front and 31.8mm at the rear.

    On braking, the reduced effort on the pedal and the intervention of the electric motor mean that the supplementary braking assistance can be eliminated.

    A passenger compartment for five occupants
    The 208 HYbrid FE needed to retain the interior features of the production hatchback model. The result proves it: a very economical vehicle that can comfortably accommodate five people and their luggage. Only the air conditioning is eliminated due to its impact on fuel consumption.

    The composite door trim pads are developed by Total's Polymers Division using Polypropylene reinforced with natural fibres. Its excellent structure, rigidity and impact absorption properties are accompanied by a reduction in weight of up to 15% and mean a reduction in the carbon footprint of these components. The centre console and vent trims are of VER resin (CCP Composites) left untreated to offer an appearance not previously seen before. In fact, their slightly amber honey colour reveals the natural fibres through transparency.

    The weight reduction techniques have also been applied to the petrol engine and the gearbox.

    An efficient and high-performance power train
    The 208 HYbrid FE is driven by a petrol-electric hybrid powertrain, which combines development of the latest generation of 3-cylinder engine with a battery and an electric motor taken from PEUGEOT Sport's Endurance programme. Special engine management and special software control the entire drive train. Overall, the efficiency of the powertrain increases by an impressive 10%.

    "The challenge of this project consisted of combining engine optimisations (reciprocating gears, cylinder head, etc.) and optimising the flow of energy between the internal combustion engine and the electric motor. All of the solutions can potentially be carried over to production." Julien Lidsky, Manager, 208 HYbrid FE Powertrain, PEUGEOT Sport

    1.2-litre VTi-FE petrol engine of high efficiency
    The 3-cylinder engine has undergone several modifications: optimisation of the engine operational cycle, reduction of friction losses, thermomanagement... All of these advances lead to fuel economy improvements by 10% yet with power maintained at 68bhp (50kW).

    The Miller Cycle is accentuated and the compression ratio modified from 11:1 to 16:1 to increase the engine's thermodynamic efficiency. This can lead to self-ignition of the mixture (or knock), which is potentially destructive. To prevent this, several actions were taken.

    So, the rate of unburned elements in the combustion chamber is reduced by valves of increased diameter, redesigned exhaust pipes, a redesigned manifold, and an adapted valve lift pattern. Furthermore, the heat exchanges are optimised in the cylinder block due to coolant passages arranged between the cylinders. The coolant now passes through the cylinder head along its entire length to recover the heat around each source: combustion chambers, between injectors and spark plugs.

    The engine adopts direct injection which, by means of very precise phasing with the closing of the cylinder, maximises the benefit of each molecule of fuel. The variable setting at the inlet and at the exhaust extends the range of optimum efficiency to the entire engine speed range, both at full load and partial load.

    However, not all of these various developments favour power at high engine speed. So, the capacity is modified to 1,233cm3 by increasing the bore and the stroke (75mm x 93mm) to maintain the declared 68bhp (50kW). On the other hand, this progress benefits the maximum torque produced which increases by 25%.

    All of the moving components are specific to the 208 HYbrid FE. The nitrated steel crankshaft, the titanium con rods and the aluminium-copper alloy pistons are cut from solid. So, their weight is reduced in spite of the increase in capacity; the con rods and Gudgeon pins being halved.

    The friction losses are a challenge as they represent approximately 1/5th of the power consumed by an engine. On the 208 HYbrid FE, they are reduced by approximately 40% notably by the crankshaft, the pistons and the Gudgeon pin, the piston rings and the camshaft followers. These components are given a diamond-like Carbon coating and are geometrically optimised.

    The weight of the cylinder head, also cut from a solid block, is halved due to the reduced thicknesses permitted by its design and the characteristics of the aluminium used. The coolant circuit and the inlet line are made by rapid prototyping of resins charged with glass fibres or carbon. To do this, the laser beam of a 3D printer fuses successive layers of aluminium powder. This produces a functional component quickly and more cheaply in the context of individual specialised manufacture.

    Produced using the same process, the piston base jets serve here both to cool them on use under load and to heat the oil as quickly as possible on starting.

    This virtuous circle affects all of the areas explored by this technological demonstrator. So, the size of the radiator is reduced, benefiting the aerodynamic properties. The alternator, the starter and the reverse gear are eliminated, reducing the weight, mechanical losses, but also in its overall dimensions.

    Piloted transmission
    The base of the production piloted manual gearbox is retained for its high efficiency and its integrated actuators. The casings cut from a solid block houses a cascade of gears to connect the electric engine to the differential crown wheel. To reduce friction losses, the teeth of the gears are given a tungsten carbide chrome coating.

    The greasing is redesigned to reduce the volume of lubricant necessary and prevent splashing over the gears, which also consumes energy. Now, the lubricant is moved to the highest point by the final drive crown wheel before circulating through gravity over the entire mechanism. The prototype gearbox oil is developed by Total Lubricants based on bio-sourced oils, of 75W grade with a very high viscosity index (higher than 250). This produces a 3% reduction in consumption, and becomes a preview of the lubricants of the future.

    Taken directly from a competition environment, a fluid grease of low density also reduces the quantity deemed necessary. Its longevity is assured by operation at a lower temperature due to a reduction in friction and finally, the hub bearings adopt a special fluid grease, which adheres but limits friction losses.

    Fuel and lubricant
    The 208 HYbrid FE passes the CO2 emissions cycle with a benchmark Super 95 fuel. The performance additives of the Excellium type, developed by Total Additives and Special Fuels, would alone reduce the CO2 emissions of this engine by more than one additional gramme per kilometre.

    "The 208 HYbrid FE offers a convergence of innovations from the laboratories of Total. Today, the group's researchers are developing biofuels, energy saving lubricants (Fuel-Eco lubricants) and special additives all contributing to improving fuel economy. In France, close to 250 researchers are working on developing the products of tomorrow." Philippe Montantême, Senior Vice President Marketing and Research Strategy, Marketing & Services department at Total

    A special engine oil of extremely low viscosity has been developed by Total Lubricants using ultrafluid based oils and by the addition of friction reducing agents containing molybdenum. Of grade 0W12, this oil develops its properties very rapidly with a shorter temperature rise time. Optimised as regards friction, it retains, both when hot and when cold, an advantage compared to the best products on the market. Thus improving fuel economy, here again a few more grammes are saved!

    A hybridisation taken from endurance experience
    The project has benefited from the expertise of PEUGEOT Sport with its experience acquired in endurance competition. So, the electric motor and the battery are those developed for the PEUGEOT 908 HYbrid4 endurance race car.

    "The hybridisation developed for the 908 HYbrid4 is state-of-the-art in this domain. The work consisted of integrating it within the power train of the 208 to recover as much energy as possible on braking and using its full potential on acceleration." Pierre Lebrene, Manager, 208 HYbrid FE Energy Recovery System, PEUGEOT Sport

    A special architecture The electric machine combines power and lightness as, at only 7kg, it develops 30kW as a motor and 100kW as a brake generator. In both modes, its torque reaches a maximum of 30Nm. Proportional to the speed of the vehicle, its maximum speed is 40,000rpm. This electric motor provides the reverse gear function, by inverting the direction of rotation, and the starter function. It also provides access to ZEV driving, purely electric.

    The Lithium-ion battery, which has a capacity of two usable MJ or 0.56kWh, consists of 0.56 cells of 90V each. They are arranged in groups, which permits the ability to isolate one if deemed necessary.

    To ensure that this strategic unit is cooled correctly, Total has developed a special oil for circulating in the dedicated radiator.

    Weighing 25kg, it is installed, with the 20-litre petrol tank, on a subframe which is bolted underneath the vehicle directly below the rear bench seat. Here, sporting experience is demonstrated with improved weight distribution. For the inverter and the ECU, these are installed under the bonnet in the space left free by the braking assistance. The hybridisation has no effect on the interior packaging, so the inside the vehicle the passenger space is maintained.

    The principle of operation
    During deceleration phases, whether by releasing the accelerator pedal or through braking, the vehicle is slowed down primarily by the electric motor. The hydraulic braking only comes into operation at the end of braking phase to maximise the recovery of the energy available. Over one homologation cycle, this recovery is 25%. Then, on acceleration, this energy is returned and assists the petrol engine according to various parameters: acceleration dictated by the driver and the gear selected.

    The 208 HYbrid FE, Fun&Efficient and Fuel Efficiency
    The PEUGEOT and Total teams, who have been working for months on creating this technological demonstrator, can be justifiably proud.

    Up until now, there have been low consumption vehicles and high performance vehicles. For the first time, these two qualities are combined in the same vehicle.

    The emissions of CO2 are just 49g/km. The different areas divide up the reduction of 50g/km as follows:

  • weight reduction, aerodynamic properties and tyres: 40% that is 20g,
  • hybridisation: 40% that is 20g,
  • engine and gearbox: 20% that is 10g.

    The performance aspect, which improves from 14 to 8 seconds over the 0 to 100km/h / 0-62mph exercise is also contributed to by:

  • weight reduction, aerodynamic properties and tyres: 4 seconds,
  • hybridisation: 2 seconds.

    The 208 HYbrid FE proves itself beyond the figures. Due to the virtuous circle in which the two partners became involved, the driver enjoys new experiences at the wheel of this technological demonstrator: acceleration worthy of a GTi with mixed fuel economy of 2.1 1/100km (112mpg). Without any loss of comfort or ease of use, the driver will rediscover a direct link with the road due to the elimination of the powered, energy-consuming assistance.

    "At the beginning of the project, the objective seemed very ambitious, of a very high level. It was! The two partners, PEUGEOT and Total, achieved it by combining their technological expertise. PEUGEOT Sport has contributed its expertise to the project and has identified new areas of development. Production and competition are progressing together." Christophe Mary, Technical Manager of the 208 HYbrid FE project, PEUGEOT Sport

    The 208 HYbrid FE proves that the emotional aspect will always have its place in a PEUGEOT vehicle, even in an increasingly restrictive energy and environmental context. PEUGEOT and Total are the major players in a modern vision of the motor vehicle.

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    Toyota to add Wireless Charging to Plug-In Prius

    During the recent Toyota Hybrid World Tour Satoshi Ogiso, Managing Officer of Toyota Motor Corporation said Toyota will begin verification of wireless/inductive charging system system in Japan, the US and Europe in 2014.

    We have been listening very carefully to Prius PHV owners over the past two years… and are considering their requests for additional all-electric range.

    We have also heard from these owners, that they would like a more convenient charging operation. In response, we are developing a new wireless/inductive charging system that produces resonance between an on-floor coil and an onboard coil to recharge the battery without the fuss of a cable.

    We will begin verification of the system in Japan, the US and Europe in 2014.

    Nissan recently said they are working on an open source wireless induction charging system and that five future Nissan-brand EVs will use inductive charging.

    Source: Toyota

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    Toyota Reveal 420hp AWD Yaris Hybrid-R Powertrain Details

    Based on the Yaris 3-door, the Yaris Hybrid R concept hybrid powertrain configuration combines the powerful 1.6l petrol Global Race Engine with two powerful electric motors to provide an ‘intelligent’ electric four-wheel drive capability.

    The front wheels are driven by a 300hp 4-cylinder 1.6 turbo engine with direct injection specifically developed by Toyota Motorsport GmbH (TMG) according to the rules of the International Automobile Federation (FIA) for a Global Race Engine to be utilised in various motorsport disciplines.

    At the rear, each wheel is individually powered by a 60hp electric motor – the same as those used in the standard Yaris Hybrid.

    Taken together, the hybrid powertrain system develops a total system output of up to 420 hp. The two electric motors work as electric generators during the braking phase, and supplement the petrol engine during the accelerating phases.

    Super-capacitor

    Just like in the TS030 HYBRID, the energy recovered during the braking phase is stored in a super capacitor. Compared to the standard NiMh hybrid battery, the super capacitor has a higher power density and a fast power charge / discharge speed. It is perfectly suited to the requirements of sporty driving on track, which requires brief and immediate bursts of power.

    Nevertheless, level of power depends on the duration of energy delivery desired. In road mode, the super-capacitor releases the energy recovered under braking for a maximum duration of 10 seconds per charge and the total power of the two electric motors is reduced to 40 hp. In track mode, the rear electric motors reach a combined maximum power of 120hp for up to 5 seconds per charge, reflecting the higher frequency of braking and acceleration events during circuit driving.

    Advanced traction control

    A 3rd 60hp electric motor, located between the engine and the 6 gear sequential transmission, operates as a generator in two different cases: during deceleration to feed the super capacitor and during acceleration to directly power the rear electric motors.

    The latter will only happen when the engine power and torque exceed the grip potential of the front wheels. The generator behaves like an advanced traction control system, redirecting the torque as electric energy to the rear wheels, to boost the acceleration and improve the handling rather than to simply limit the engine power.

    Torque vectoring

    Rear electric motors - one per wheel – can greatly influence the Yaris Hybrid-R handling characteristics during cornering by altering the distribution of torque between the left and right rear wheels.

    Each motor can be used independently as a generator or a motor to achieve the same effect as an intelligent torque vectoring differential.

    Depending on the radius of the curve, the system can send more torque to the outside rear wheel allowing higher cornering speeds into the corner (middle-speed curves), apply more braking force to the inside wheel (fast curves), or even brake and accelerate each wheel independently (slow curves) to adjust the yaw effect for a better line, to limit steering angle, and understeer.

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    BMW i8 Faster than an M3 using one-third less fuel than a Toyota Prius

    At a driving event at the BMW Group’s Miramas test track in France, the BMW i presented a prototype of its second production vehicle, the BMW i8. BMW i is synonymous with visionary mobility concepts and a new definition of premium quality that is strongly focused on sustainability. Following the world debut of the first production model, the BMW i3, the BMW Group’s next step will be to extend this revolutionary answer to the future challenges facing personal mobility to the sports car segment in the BMW i8. This plug-in hybrid model is the most progressive sports car of our time, extending the basic BMW i philosophy of sustainability to a new vehicle segment.

    The BMW i8 fulfills the promise of The Ultimate Driving MachineTM in a revolutionary and mold-breaking form. This is reflected in a highly emotive design, dynamic sports car performance, and fuel efficiency and emissions figures worthy of a small car. Pairing an exceptionally lightweight, aerodynamically optimized body with cutting-edge BMW eDrive technology, a compact, turbocharged 1.5-liter BMW TwinPower Turbo gasoline engine and intelligent energy management, the BMW i8 marks the next stage in the evolution of the Efficient Dynamics strategy. Its revolutionary approach achieves an unprecedented balance between performance and fuel efficiency. Thanks to its carbon-fiber-reinforced plastic (CFRP) passenger cell, the BMW i8 sets new standards for a plug-in hybrid vehicle in terms of low weight. It can operate solely on electric power, which means no tailpipe emissions, and offers the dynamic performance of a sports car, with an expected 0 – 60 mph sprint time under 4.5 seconds.

    The BMW i8 was designed from the outset as a plug-in hybrid sports car, with the emphasis on agile performance and outstanding efficiency. Its characteristic BMW i LifeDrive architecture provides the best possible basis for lightweight design. Its main components are the aluminum Drive module, which incorporates the internal combustion engine and electric motor, the battery, the power electronics and the chassis components, along with structural and crash functions, and the Life module, which essentially comprises the 2+2-seater CFRP passenger cell. This architecture also gives the BMW i8 a very low center of gravity and a near-perfect 50:50 axle load ratio, both of which increase its agility.

    The BMW i8’s plug-in hybrid system is specific to this model. Developed and produced by the BMW Group, it marks the next step in the evolution of the Efficient Dynamics programme. A compact three-cylinder petrol engine with BMW TwinPower Turbo technology is combined with an electric drive system and a lithium-ion battery which can be recharged at a standard household power socket. The 231 hp (170 kW) gasoline engine sends its power to the rear wheels, while the 131 hp (96 kW) electric motor powers the front wheels. This configuration offers all-electric driving capability with a range of up to approx. 22 miles (35 kilometers) and a top speed of approximately 75 mph (120 km/h). With both drive systems engaged, it also offers road-hugging all-wheel-drive performance with powerful acceleration and dynamic torque vectoring during sporty cornering. The more powerful of the two powerplants drives the rear wheels. The hybrid system supplements this with power from the electric motor to deliver typical BMW driving pleasure combined with groundbreaking efficiency. Calculated using the EU test cycle for plug-in hybrid vehicles, the average fuel efficiency of the BMW i8 at model launch will be less than 2.5 liters/100 km, which equates to approximately 95 miles per US gallon, with CO2 emissions of less than 59 grams per kilometer.

    Optimal balance between performance and fuel economy: BMW i8 as an exciting evolution of the Efficient Dynamics strategy.

    It is now more than a decade since the BMW Group launched its Efficient Dynamics vehicle development strategy, whose aim is to significantly improve both the performance and the efficiency of new BMW Group models. Efficient Dynamics combines evolutionary advances in existing technologies with the development of new and revolutionary drive concepts. Efficient Dynamics solutions include efficient lightweight design and aerodynamic concepts, high-performance drive systems based on TwinPower Turbo technology and BMW eDrive, and intelligent management of all energy flows within the vehicle. The new, revolutionary technology now being introduced on models from BMW i will subsequently find its way into the vehicles of the BMW Group’s core brands.

    BMW i is also setting benchmarks in the quest for zero CO2 emissions in urban driving. The research and development work carried out since 2007 as part of project i has laid the foundations for revolutionary mobility solutions strongly influenced by environmental, economic and social change around the world. The BMW Group is pursuing an integrated approach, as embodied in the BMW i brand, which aims to achieve the necessary balance between individual needs and the global mobility requirements of the future. The BMW i focus is squarely on all-electric and plug-in hybrid mobility. Groundbreaking design, intelligent lightweight engineering, typical BMW driving pleasure coupled with zero tailpipe emissions, intelligent energy management and resource- and energy-saving production processes are all combined into an innovative premium-quality package.

    LifeDrive architecture with an aluminum chassis for the powertrain and a CFRP passenger cell: for more excitement, lower weight and optimized drag.

    The LifeDrive architecture specially developed for BMW i vehicles offers the ideal platform for turning the tide of spiraling weight while at the same time achieving distinctive styling exclusive to BMW i. With a length of 184.6 inches (4,689 mm), a width of 76.5 inches (1,942 mm) and a height of 50.9 inches (1,293 mm), the BMW i8 has the proportions of a sports car. Its dynamic personality is also stressed by a long bonnet, conspicuous aerodynamic features, an elongated roofline, short overhangs and a long wheelbase of 110.2 inches (2,800 mm). Characteristic BMW i form language wraps up this groundbreaking combination of sporty performance and efficiency in a charismatic 2+2-seater design.

    The BMW i8 combines a drag coefficient (Cd value) of 0.26 with outstanding aerodynamic balance. The finely honed air flow around all parts of the vehicle body makes for an excellent lift/drag ratio, resulting in superb driving dynamics and stability.

    Intelligent lightweight design – from the overall concept down to the smallest detail.

    With its combination of the aluminum Drive module and the CFRP passenger cell (Life module), the BMW i8 is also an excellent example of intelligent lightweight design – one of the guiding principles of the Efficient Dynamics strategy. Use of the lightweight high-tech material CFRP, which also offers excellent crash performance, brings weight savings of 50 percent over steel and around 30 percent over aluminum, with equivalent or improved strength. These savings offset the additional weight of the electric motor and the high-voltage battery, giving the BMW i8 a curb weight of less than 3,285 lbs (1,490 kilograms). The LifeDrive architecture also brings benefits in terms of weight distribution. The battery pack is situated low down in the middle of the vehicle, resulting in a low and central center of gravity, which improves safety. No other current model of a BMW Group brand has such a low center of gravity.

    The front-rear axle load distribution maximizes agility with a near-perfect 50:50 axle load ratio. The compact electric motor, together with the transmission and power electronics, are situated in close proximity to the electrically powered front axle. The turbocharged gasoline engine, which is located together with its transmission in the rear of the BMW i8, likewise sends its power to the road via the shortest possible route, i.e. through the rear wheels. As a finishing touch to this excellent weight distribution, the lithium-ion battery pack is centrally located in the vehicle, slightly forward of the mid-point. In terms of crash safety, this is an ideal location for the battery, which is integrated in an aluminum housing.

    The doors comprise a CFRP inner structure and an aluminum outer skin. This reduces the weight of the door by 50 percent compared with a conventional design. The high-quality, naturally tanned leather of the seats highlights the “next premium”, sustainable philosophy of BMW i. The magnesium instrument panel support saves weight on two fronts – firstly through intelligent design, leading to around 30 percent weight savings compared, for example, with the BMW 6 Series. In addition, the high structural rigidity provides a strengthening effect which allows the number of components to be reduced, thereby lowering weight by a further 10 percent. Innovative foam plastic technology used in the air conditioning ducts brings 60 percent weight savings over conventional components, while also improving acoustics thanks to its sound-absorbing properties.

    The fact that the power electronics and electric motor are directly connected reduces the amount of wiring required, while partial use of aluminum wiring brings further weight reductions. Lightweight design is also a feature of the BMW i8’s chassis systems – including the wheels, where the standard-fitted 20-inch forged aluminum wheels combine aerodynamic design with weight savings. The rigorous application of the lightweight design strategy even extends to aluminum screws and bolts, which are around 45 percent lighter than corresponding steel components, with the same strength and functionality.

    The BMW i8 is also the world’s first volume-produced vehicle to be equipped with chemically hardened glass. This innovative technology, to date used mainly in Smartphone manufacturing, results in very high strength. The partition between the passenger compartment and boot of the BMW i8 consists of two layers of chemically hardened glass, each of which is just 0.7 millimeters thick, with acoustic sheeting sandwiched between. In addition to excellent acoustic properties, a further advantage of this solution is weight savings of around 50 percent compared with conventional laminated glass.

    For maximum driving pleasure and efficiency: BMW TwinPower Turbo engine and electric motor developed by the BMW Group.

    The plug-in hybrid system of the BMW i8, which comprises a BMW TwinPower Turbo engine combined with BMW eDrive technology, offers the best of both worlds: excellent potential for improved efficiency and exciting, sporty driving characteristics. The BMW Group has developed not only the internal combustion engine and electric motor in-house but also the power electronics and the battery. This ensures that all these components offer high product and quality standards, based on the outstanding capabilities of the BMW Group in the field of powertrain research and development.

    The revolutionary character of the BMW i8 is emphasized by a further innovation: the use of a new internal combustion engine which is making its debut in this model. The BMW i8 is the first BMW production model to be powered by a three-cylinder gasoline engine. This highly turbocharged unit is equipped with latest-generation BMW TwinPower Turbo technology. It is exceptionally compact and develops maximum power of 231 hp (170 kW). The resulting specific output of 154 hp (113 kW) per liter of displacement is on a par with high-performance sports car engines and is the highest of any engine produced by the BMW Group.

    The new three-cylinder engine derives its typical characteristics from the BMW inline six-cylinder engines, to which it is closely related and which are noted for their eager power delivery, revving ability and refinement. The three-cylinder’s BMW TwinPower Turbo technology comprises a high-performance turbocharging system and direct gasoline injection with high-precision injectors positioned between the valves, along with VALVETRONIC throttle-less load control, which improves efficiency and response thanks to seamlessly variable valve lift control. Like a six-cylinder engine, the three-cylinder unit is free of first and second order inertial forces. The low roll torque, a typical feature of a three-cylinder design, is further reduced by a balancer shaft, while a multi-stage damper integrated in the automatic transmission ensures very smooth and refined running at low rpm. BMW TwinPower Turbo technology and low internal friction improve both fuel consumption and torque characteristics. Accelerator response is sharp and the three-cylinder unit quickly reaches its maximum torque of 236 lb-ft (320 Nm).

    The BMW i8’s second power source is a hybrid synchronous electric motor specially developed and produced by the BMW Group for BMW i. The electric motor develops maximum power of 131 hp (96 kW) and produces its maximum torque of around 236 lb-ft (320 Nm) from standstill. Typical of an electric motor, responsive power is instantly available when starting and this continues into the higher load ranges. The linear power delivery, which extends right up to the high end of the rpm range, is down to a special motor design principle exclusive to BMW i. BMW eDrive technology refines and improves on the principle of the permanently excited synchronous motor via a special arrangement and size of the torque-producing components. This results in a self-magnetising effect normally confined to reluctance motors. This additional excitation ensures that the electromechanical field generated when current is applied remains stable even at high rpm.

    As well as providing a power boost to assist the gasoline engine during acceleration, the electric motor can also power the vehicle by itself. Top speed is approximately 75 mph (120 km/h). The BMW i8 has a maximum driving range in this emission-free, virtually soundless, all-electric mode of up to 22 miles (35 kilometers). The motor derives its energy from the lithium-ion battery which is centrally mounted underneath the floor of the vehicle. The model-specific version of the high-voltage battery was developed and produced by the BMW Group. It has a liquid cooling system and can be recharged at a conventional household power socket, at a BMW i Wallbox or at a public charging station. In the US a full recharge takes approximately 3½ hours from a conventional 120 volt, 12 amp household circuit or approximately 1½ hours from a 220 volt Level 2 charger.

    The BMW i8’s vehicle concept and powertrain control system mark it out as a progressive, revolutionary sports car. The BMW i8 always achieves the optimal balance between performance and efficiency, whatever the driving situation. When power demands allow, the high-voltage battery is recharged by the electric motor. The high-voltage starter-generator, responsible for starting the engine, can also be used as a generator to charge the battery, the necessary power being provided by the BMW TwinPower Turbo engine. The battery can also be recharged via the electric motor during overrun. These various processes help to prevent depletion of the BMW i8’s battery in order to maintain the electric drive power. The all-electric driving range is sufficient to cover most urban driving requirements. Out of town, the BMW i8 offers impressively sporty performance which is also very efficient thanks to the power-boosting support for the gasoline engine from the electric motor. With such versatility, the BMW i8 belongs to a new generation of sports cars which unites exciting performance with cutting-edge efficiency – to enhance both driving pleasure and sustainability.

    Driving Experience Control and eDrive button: a choice of efficiency and performance characteristics – at the touch of a button.

    The rear wheels of the BMW i8 are driven by the gasoline engine via a six-speed automatic transmission. The front wheels are driven by the electric motor via an integrated two-stage automatic transmission. Combined maximum power and torque of 362 hp (266 kW) and 420 lb-ft (570 Nm) meters respectively provide all-wheel-drive performance which is as dynamic as it is efficient. The BMW i8’s intelligent powertrain control system ensures perfect coordination of both power sources. The variable power-sharing between the internal combustion engine and the electric motor makes the driver aware of the sporty temperament of the BMW i8 at all times, while at the same time maximizing the energy efficiency of the overall system. Utilizing both power sources, the 0 – 60 mph acceleration time is expected to be less than 4.5 seconds. Linear acceleration is maintained even at higher speeds since the interplay between the two power sources efficiently absorbs any power flow interruptions when shifting gears. The BMW i8 has an electronically controlled top speed of 155 mph (250 km/h), which can be reached and maintained when the vehicle operates solely on the gasoline engine. Variable front-rear power splitting in line with changing driving conditions makes for excitingly dynamic cornering. On entering the corner, the power split is biased towards the rear wheels to improve turning precision. For more vigorous acceleration out of the corner, the powertrain controller returns to the default split as soon as the steering angle becomes smaller again. The BMW i8 also offers the driver unusual scope to adjust the drive and suspension settings of the vehicle in order to adapt the driving experience to his or her individual preferences. As well as the electronic gear selector for the automatic transmission, the driver can also use the Driving Experience Control switch – a familiar feature of the latest BMW models – or, exclusively to the BMW i8, the eDrive button.

    Using the gear selector, the driver can either select position D for automated gear selection or can switch to SPORT mode. SPORT mode offers manual gear selection and at the same time switches to very sporty drive and suspension settings. In SPORT mode, the engine and electric motor deliver extra-sharp performance, accelerator response is faster and the power boost from the electric motor is maximized. And to keep the battery topped up, SPORT mode also activates maximum energy recuperation during overrun and braking: for this, the electric motor’s generator function, which recharges the battery using kinetic energy, switches to a more powerful setting. At the same time, gear change times are shortened and an extra-sporty setting is selected for the standard-fitted Dynamic Damper Control. Also in this mode, the programmable instrument cluster supplies further driving-related information in addition to the rev counter display.

    The Driving Experience Control switch on the center console offers a choice of two settings. On starting, COMFORT mode is activated, which offers a balance between sporty performance and fuel efficiency, with unrestricted access to all convenience functions. Alternatively, at the touch of a button, ECO PRO mode can be engaged, which, on the BMW i8 as on other models, supports an efficiency-optimised driving style. The powertrain controller coordinates the cooperation between the gasoline engine and the electric motor for maximum fuel economy. On deceleration, the intelligent energy management system automatically decides, in line with the driving situation and vehicle status, whether to recuperate braking energy or to coast with the powertrain disengaged. At the same time, ECO PRO mode also programs electrical convenience functions such as the air conditioning, seat heating and heated mirrors to operate at minimum power consumption – but without compromising safety. The maximum driving range of the BMW i8 on a full fuel tank and with a fully charged battery is over 310 miles (500 km) in COMFORT mode. In ECO PRO mode, this can be increased by up to 20 percent. The BMW i8’s ECO PRO mode can also be used during all-electric operation. The vehicle is then powered solely by the electric motor. Only if the battery charge drops below a given level, or under sudden intense throttle application such as kickdown, is the internal combustion engine automatically activated. The driving mode selected at a given moment is indicated to the driver on the programmable instrument cluster by a distinctive color and by a different, mode-specific set of driving information. The three-dimensional appearance of the display adds to the futuristic look and feel of the vehicle as a whole.

    High-quality chassis technology, DSC and Dynamic Damper Control as standard.

    The high-end chassis and suspension technology of the BMW i8 is based on a double-track control arm front axle and a five-link rear axle, whose aluminum components and geometry are specially configured for intelligent weight savings. The electromechanical power steering offers easy manoeuvring in town and typical sports car-style high-speed steering precision. Also standard is Dynamic Damper Control: the electronically operated dampers change their characteristics according to the selected driving mode to deliver the desired vehicle dynamics. The DSC (Dynamic Stability Control) stability system includes the Anti-lock Braking System (ABS), Cornering Brake Control (CBC), Dynamic Brake Control (DBC), Brake Assist, Brake Standby, Start-Off Assistant, Fading Compensation and the Brake Drying function. The push button-activated Dynamic Traction Control (DTC) system raises the DSC thresholds, allowing some controlled drive wheel slippage for easier start-off on snow or loose ground, or for extra-dynamic cornering.

    The extraordinary BMW i8 will make its world debut at the Frankfurt Motor Show and arrive in BMW showrooms in 2014.