Today’s ground-based armored fighting vehicles are better protected than ever, but face a constantly evolving threat: weapons increasingly effective at piercing armor. While adding more armor has provided incremental increases in protection, it has also hobbled vehicle speed and mobility and ballooned development and deployment costs. To help reverse this trend, DARPA’s Ground X-Vehicle Technology (GXV-T) program recently awarded contracts to eight organizations.
DARPA's Ground X-Vehicle Technology (GXV-T) program seeks to develop groundbreaking technologies that would make future armored fighting vehicles significantly more mobile, effective, safe and affordable.
Radically Enhanced Mobility—Ability to traverse diverse off-road terrain, including slopes and various elevations. Capabilities of interest include revolutionary wheel/track and suspension technologies that would enable greater terrain access and faster travel both on- and off-road compared to existing ground vehicles.
Like previous autonomous off-road military vehicle prototypes, for example Carnegie Mellon University's "Crusher", (pictured below) all-wheel-drive in-wheel motor electric powertrains are a key enabling technology for these next generation vehicles.
“We’re exploring a variety of potentially groundbreaking technologies, all of which are designed to improve vehicle mobility, vehicle survivability and crew safety and performance without piling on armor,” said Maj. Christopher Orlowski, DARPA program manager. “DARPA’s performers for GXV-T are helping defy the ‘more armor equals better protection’ axiom that has constrained armored ground vehicle design for the past 100 years, and are paving the way toward innovative, disruptive vehicles for the 21st Century and beyond.”
Volkswagen is considering the development of an all-electric rallycross supercar.
The German firm's head of technology Frank Welsch says the short, sharp format of rallycross events offers the perfect showcase for advances in electric car technology.
“I can certainly imagine a championship done with all-electric cars,” Welsch told Autocar. “The races are around six minutes long, which allows for short, intense bursts of competition and then charging.”
VW already competes in Red Bull Global Rallycross with factory Beetle GRCs and in FIA World Rallycross with Polo RXs. Both cars squeeze around 560 HP out of their tiny engines and reach 100km/h in just 2 seconds.
“Today these cars are super-powerful, have torque from hell and use all-wheel drive,” said Welsch. “Electric drivetrains could deliver that.”
Welsch went on to say that “If the championship moved that way it would be perfect for us.”
Porsche AG has been weighing bids from Panasonic Corp. and Robert Bosch GmbH for a long-range battery as it prepares to challenge Tesla Motors Inc. with an all-electric sports car, according to people familiar with the matter.
Costs for the package offered by crosstown neighbor Bosch would be higher than the competing technology from Japanese peer Panasonic, which supplies Tesla’s batteries, said the people, who asked not to be identified because the talks are confidential. The advantage to Bosch’s offer would be less-complex logistics.
“We’re in the final stage of making a decision,” Porsche Chief Executive Officer Oliver Blume said in an interview last week at the Geneva International Motor Show. He declined to comment on the suppliers being considered.
The unit of Volkswagen AG, Europe’s largest automaker, earmarked 1 billion euros ($1.1 billion) to build its first battery-powered sports car in December. It’s part of the parent company’s broader push for more low-emission electric and hybrid cars. Volkswagen has sped up its electric efforts since admitting six months ago it had cheated on emissions tests for diesel cars.
Audi CEO Rupert Stadler said a week ago the company, a fellow Volkswagen unit, will purchase batteries for its electric vehicles from Korean suppliers LG Chem Ltd. and Samsung Electronics Co., who have plans in place to start producing battery cells in Europe.
Electric Investment
With the Volkswagen scandal throwing the long-term future of diesel into question, other carmakers are also turning anew to electric cars. Daimler AG’s Mercedes-Benz said last week it will invest 500 million euros to build a second battery factory in Germany because it expects demand to pick up.
Porsche’s electric sports car will be based on the low-slung Mission E concept shown at the Frankfurt auto show six months ago. Set to be produced near the automaker’s German headquarters in Stuttgart, the new model will create some 1,000 jobs.
A spokesman for Porsche referred to the brand’s annual earnings conference, scheduled Friday morning, and declined to comment beforehand. Bosch declined to comment. Yayoi Watanabe, a spokeswoman for Panasonic, declined to comment.
The 2017 Chevrolet Bolt EV does more than set a new benchmark for affordable, long-range EV driving. It also raises the bar when it comes to driving performance.
Engineers developed the Bolt EV’s propulsion system to offer more than an estimated 200 miles (based on GM estimates) and a peppy driving experience that’s more akin to a compact sports sedan than a small utilitarian crossover.
“Being the leader in range and affordability means nothing if the car isn’t going to excite you each time you get behind the wheel,” said Josh Tavel, Chevrolet Bolt EV chief engineer. “That’s why the team was tasked with delivering a propulsion system that would also make the Bolt EV an electric vehicle that owners would love to drive.”
Single Motor Drive Unit Like most EVs on the road, the Bolt EV’s drive system uses a single high capacity electric motor to propel the car. But it’s the smooth, powerful and quiet motor design, gear configuration and shift-by-wire system that separates it from the pack.
The engineering team designed the Bolt EV’s electric motor with an offset gear and shaft configuration tailored to meet efficiency and performance targets – most notably more than an estimated 200 miles of range. The motor is capable of producing up to 266 lb.-ft. (360 Nm) of torque and 200 hp (150 kW) of motoring power. Combined with a 7.05:1 final drive ratio, it helps propel the Bolt EV from 0-60 mph in less than seven seconds.
Power delivery is controlled by Chevrolet’s first Electronic Precision Shift system. This shift and park-by-wire system sends electronic signals to the Bolt EV’s drive unit to manage precise feel and delivery of power and torque, based on drive mode selection and accelerator inputs. A by-wire shifter requires less packaging space than a traditional mechanical shifter, resulting in more interior space and improved interior layout.
60 kWh Battery System Having more than 1.3 billion miles of EV experience from the Chevrolet Volt helped Bolt EV battery engineers and strategic partner LG Electronics to develop an all-new cell and battery pack to offer more than an estimated 200 miles of range.
Battery system preliminary specifications include:
60 kWh lithium-ion battery pack.
288 lithium ion cells
Five sections
10 modules
96 cell groups – three cells per group
960 lbs. (435 kg) total weight
“You usually have a battery cell that delivers either the desired levels of energy or power, but not traditionally both. With this cell design and chemistry we were able to deliver a battery system with 160 kilowatts of peak power and 60 kilowatts hours of energy,” said Gregory Smith, Bolt EV battery pack engineering group manager.
The battery uses active thermal conditioning, similar to the Chevrolet Volt, to keep the battery operating at its optimum temperature, which results in solid battery life performance. The Bolt EV battery will be covered by an 8-year/ 100,000 mile (whichever comes first) limited warranty.
Inside the battery pack – which spans the entire floor, from the front foot well to back of the rear seat – is a new cell design and chemistry. The nickel-rich lithium-ion chemistry provides improved thermal operating performance over other chemistries, which requires a smaller active cooling system for more efficient packaging. The chemistry allows the Bolt EV to maintain peak performance in varying climates and driver demands.
The cells are arranged in a “landscape” format and each measures in at only 3.9 ins. (100 mms) high and 13.1 ins. (338 mms) wide providing improved packaging underfloor. The lower profile cell design enabled the vehicle structure team to maximize interior space.
The battery system is mated to a standard equipment 7.2 kW onboard charger for regular overnight charging from a 240-V wall box. A typical commute of 50 miles can be recharged in less than two hours. Bolt EV also features an optional DC Fast Charging system using the industry standard SAE Combo connector. Using DC Fast Charging, the Bolt EV battery can be charged up to 90 miles of range in 30 minutes. Outside temperatures may affect charging times.
Regen System Provides One-Pedal Driving Regenerative braking has become more than just a tool to boost range, it’s also transformed into a feature that can provide an improved EV driving experience. The Bolt EV features a new regenerative braking system that has the ability to provide one pedal driving.
“Interviews with EV enthusiasts indicated their desire for one pedal driving capability on the Bolt EV. One pedal operation boosts the thrill and uniqueness of EV driving,” Tavel said.
Through a combination of increased regenerative deceleration and software controls, one pedal driving enables the vehicle to slow down and come to a complete stop without using the brake pedal in certain driving conditions.
When operating the Bolt EV in “Low” mode, or by holding the Regen on Demand paddle located on the back of the steering wheel, the driver can bring the vehicle to a complete stop under most circumstances by simply lifting their foot off the accelerator, although the system does not relieve the need to use the brake pedal altogether.
Operating the Bolt EV in “Drive” mode and not pulling the paddle while decelerating delivers a driving experience where usage of the brake pedal is required to stop.
Watch the all new Tesla Model X P90D Ludicrous race the Model S also with Ludicrous in an all out drag racing shootout.
The Model X P90D with the $10,000 Ludicrous Mode runs 11.61 @ 116 MPH in the 1/4 mile setting a new world record for the quickest production SUV/CUV. 0-60 MPH came up in just 3.1 seconds. The Model S ran 11.3-11.5 @ 116 MPH.
Tesla's Autopilot uses hardware from both Mobileye and Nvidia to control the Model S on highways. Apparently Tesla would like to discontinue using Mobileye’s system in favor of bringing it in-house, according to an email exchange between Tesla CEO Elon Musk and George Hotz, a software engineer mainly known for being the first person to jailbreak the iPhone.
A report by Bloomberg's Ashlee Vance would have us believe 26-year old hacker George Hotz has built a self-driving car from scratch in a month. Unfortunately for this urban myth, it's fairly obvious the 2016 Acura ILX he's using isn't a random choice.... Honda have offered Adaptive Cruise Control with Lane Assist since 2013.
AcuraWatch Plus is a basic $1300 option available on this car that provides Adaptive Cruise Control, Lane Keeping Assist, Collision Mitigation Braking & Road Departure Mitigation.. So this Honda can do what he's demonstrating off the showroom floor.
A more accurate description of Hotz's work is "reverse engineering".
Following the new Audi R18's world premiere at the Audi Training Center Munich last month, the now battery powered R18 Audi Le Mans Prototype LMP was recently caught testing at Sebring International raceway in Florida USA.
The 2016 R18 retains the 4.0L TDI engine but moves up into the 6MJ class; the 2015 R18 raced in the 4MJ class, up from 2MJ the season before.
Porsche will spend about 1 billion euros ($1.09 billion) on production facilities at its biggest plant to make its first-ever all-electric sports car.
The Volkswagen-owned manufacturer will create more than 1,000 new jobs at its base in Zuffenhausen in Germany where a new paint shop and assembly line will be set up to build the battery-powered "Mission E" model, Porsche said on Friday.
Porsche's investment in emissions-free drive technology reflects parent VW's growing commitment to increase its electric offerings as it struggles to overcome an emissions scandal.
VW has said the next generation of its VW-badged flagship luxury saloon Phaeton will be electric and it plans to expand the so-called MQB modular production platform to focus more strongly on long-range plug-in hybrids and electric vehicles.
Analysts have warned that VW's admission of rigging diesel emissions tests could cast a shadow over the diesel vehicle industry.
Porsche's Mission E model, due to come to market by the end of the decade, will be more than 600 horsepower and have a range of over 500 km (310 mile).
"We are sending a significant sign for the future of the brand," Chairman Wolfgang Porsche said after a meeting of the supervisory board which approved the investment.
Some 700 million euros will be spent at Zuffenhausen where an existing engine plant and body shop will be extended, and the rest will be invested in Porsche's development center in Weissach, the carmaker said.
No other car currently on the market is able to capture the curiosity of the greater public like the Tesla Model S P85D. It is a means of transport like no other, breaking a few world records in the process.
Perfectly timed for the world famous Bathurst 1000 endurance race this coming weekend at Mt Panorama, the guys at CarAdvice.com have set up the ultimate drag race.
It's the world's fastest four-door sedan, the Tesla Model S P85D, against Australia's fastest four-door sedans, the Supercheap Auto Racing Holden Commodore V8 Supercar and the Walkinshaw Performance W507 HSV GTS.
The Tesla Model S P85D rockets from 0-100km/h in just 3.3-seconds, while the V8 Supercar does it in 3.4-seconds, but weighs just 1400kg with the driver.
