BMW venture arm invests in U.S. electric-bus maker Proterra

Proterra Catalyst electric busYou can't buy one at your local car dealer, but electric transit buses have a significant role to play in reducing vehicular emissions and expanding the spread of electric-vehicle technology. Two companies have a majority of the U.S. market for electric buses, which is growing quickly if perhaps more quietly than that for electric cars. The U.S...

Mercedes to make electric cars at its China factory with BAIC

Mercedes-Benz EQ electric car concept  [photo: Axel Harries]It's not only electric cars: China is also now the world's largest market for luxury cars. Audi got an early foothold among party officials and high-ranking government officials, but the allure of global brands has ensured that Mercedes-Benz and BMW sell lots of cars there as well. Now, Mercedes parent company Daimler is combining its local...

California joins Germany in climate coalition to support Paris pact

California state capitol, SacramentoThe 50 states that make up the U.S. don't get to set their own foreign policies (neither do Canadian provinces). But that doesn't necessarily prevent them from working with other countries on matters of mutual interest. And that's just what California is doing in an agreement announced this weekend that expands its efforts to battle climate change...

How much would relaxing U.S. fuel-economy rules matter? Poll results

Gas pumpOne of the earliest acts of the Trump Administration was to announce that it would re-examine emission rules finalized by the EPA in the waning days of the Obama Administration. Making good on that promise, EPA administrator (and climate-science denier) Scott Pruitt reopened the commenting period on tailpipe-emission limits of carbon dioxide...

Honda’s all-electric NSX 4-Motor EV is more advanced than any Tesla

Honda's head of research and development, Sekino Yosuke, has revealed the next-generation Honda NSX could be based on the firm’s 1,000 hp Pikes Peak race car, the NSX-inspired 4-Motor Acura EV Concept.

The 4-Motor Acura EV finished third overall at the Pikes Peak hill climb in 2016. That was thanks to its all-electric all-wheel-drive powertrain, comprising four electric motors that developed around 740 kW and 800 Nm of torque, a 70 kwh lithium-ion battery pack and only 1,500 kg kerb weight. Honda claims the electric NSX is capable of 0-100 km/h in 2.5 seconds and 0-200 km/h in 6.2 seconds.

With the current all wheel drive hybrid NSX having only been on sale since last year, an all-new NSX is unlikely to be launched before 2023, when battery technology is expected to have progressed significantly.

Honda first demonstrated a 4-Motor EV CR-Z prototype in 2015 with journalists who test drove the vehicle suggesting torque vectoring gave it cornering ability in a whole other league to a Model S.

While there's no denying Tesla, especially with ludicrous mode, have re-calibrated the auto-industry's definition of 'quick', it's probably less well known that Tesla's powertrain is actually based on 1990s technology with the 3 phase AC induction motor and controller designs originally licensed from EV1 drive system engineer Alan Cocconi.

Unlike current high performance all-wheel drive electric vehicles, like Tesla's Model S P100D, which use 2x motors and conventional mechanical differentials, Honda's electric NSX features four electric motors — one for each wheel.

With a dedicated motor at each corner, the Super Handling All-Wheel Drive (SH-AWD) system can precisely apply either positive or negative torque individually to each wheel. This opens the door to torque vectoring and full-time active yaw control - something that will make consumer EVs safer and more energy efficient.

How does this work? Imagine electronic stability control that, instead of applying friction brakes (wasted energy), applies negative torque (regenerative braking) to individual wheels. Unlike friction-brake based ISC, the NSX 4-Motor system can also apply positive torque to individual wheels. Combining that range of precise control with a multi gyro inertial measurement platform unlocks an entirely new level of safety and high performance active dynamic control.

While it might be another 5-6 years before Honda's 4-Motor Super Handling All-Wheel Drive makes it into production, the team at Evans Electric are developing an AWD torque vectoring system based on compact Axial flux induction motors.

2017 Ford Fusion Energi: low electric range, no public charging frustrating

2017 Ford Fusion EnergiElectric-car charging infrastructure in the United States is getting better, but still has a very long way to go. While anyone that's given even a passing glance to plug-in vehicles would likely tell you the same thing, I experienced the impact of a charging-free society first-hand while driving a Ford Fusion Energi. The plug-in hybrid Fusion...

2017 Honda Clarity Electric to lease for $269 a month, starting in August

2017 Honda Clarity ElectricWhat would you pay to lease a smooth, quiet, comfortable, relatively luxurious mid-size electric sedan with only about 90 miles of range? Honda hopes the answer is $269 a month with $1,730 down, on a three-year lease that takes advantage of the federal income-tax credit for electric-car purchase. Pricing is now out for the 2017 Honda Clarity...