Car Tech
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Regenerative braking is a standard and expected part of any electrified car now, from Honda's mild hybrids up through battery-electric vehicles like the Tesla Model S. It lets the car recapture energy from momentum, which would otherwise be wasted as brake heat, by running the electric motor in reverse to recharge the battery. But what was the first car to employ regenerative braking? According to a short piece in Car Design News, it was an electric concept car called the Amitron, unveiled in 1967 by--of all things--American Motors. Shorter than a Smart ForTwo minicar, it was sufficiently...
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2014 Cadillac ELR Software Gives Hints Of Future Voltec UsesGeneral Motors' Voltec drivetrain, the range-extended plug-in setup used on the Chevrolet Volt and the new 2014 Cadillac ELR, is among the most advanced drivetrains on the roads. That's not to say there isn't room for greater improvement though, and that's exactly what GM is doing. In fact, as...
Antony Ingram -
Audi Sport Quattro Laserlight Plug-In Hybrid Concept To Premiere At CESMost modern concept cars are lightly glitzed-up versions of the cars we'll see on the streets in subsequent years, but every so often an automaker develops a concept simply to show off its future technology. That's certainly the case with the Audi Sport Quattro Laserlight plug-in hybrid concept...
Antony Ingram -
2015 BMW i8 To Feature World's First Laser HeadlightsBMW's plug-in hybrid i8 sports car is set to be one of the most exciting cars of 2014, but it'll also be one of the most technologically advanced. As well as the use of a new 1.5-liter three-cylinder turbocharged engine, its part-electric drivetrain and unique styling, it'll also be the world's...
Antony Ingram -
Collapse of Battery Startup Envia: What Really HappenedThe race to find battery technologies of the future is not one without casualties. The trail left behind Envia, one of the most promising battery startups in recent years, has left something more akin to a warzone--and even huge companies like General Motors have taken shrapnel during their...
Antony Ingram -
Magnesium The Next Material For Lighter, More Efficient CarsA car's mass affects virtually every aspect of its performance, handling and efficiency, and reducing it has become an all-encompassing pursuit for carmakers aiming to meet tough new fuel economy targets. High-strength steels, aluminum and even carbon fiber are now widely used, but the industry is...
Antony Ingram -
Cruise control is an American driving staple. We use it on long road trips to reduce fatigue. And with the advent of adaptive cruise control systems, we're even using it on parts of our commutes, and during traffic-jammed holiday weekend slogs. For the most part, cruise control can save a lot of fuel—up to 10 percent, versus foot-on-accelerator driving—by smoothing our driving styles. Yet the more we 'adapt' cruise control to surrounding traffic or more extreme terrain, the more we need to question the way in which it pulls off the basics—maintaining speed, and 'recovering'...
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Annual 10 Best Engines List: Diesels, Turbos, And Electric TooYou might think that a list of the best engines on sale would be dominated by screaming sports car engines or a muscular V-8 from the latest muscle car. And while it's true that both feature on the Wards Automotive list of its 2014 Ten Best Engines, as well as several other high-performance units...
Antony Ingram -
Modern Electric Cars, Three Years Later: Lessons LearnedThree years ago yesterday, the first retail buyer of a brand-new Chevrolet Volt range-extended electric car was handed his keys in Denville, New Jersey. Just three days earlier, the first Nissan Leaf buyer had received his battery-electric car in a large ceremony at San Francisco's City Hall...
John Voelcker -
Ford To Have Start-Stop On 70 Percent Of Vehicles By 2017Stop-start systems have taken much longer to infiltrate the U.S. market than they have elsewhere, but several manufacturers are finally coming around to the idea of the gas-saving technology. One such automaker is Ford, which has announced that 70 percent of its North American vehicle lineup will...
Antony Ingram -
AWD Cars Increasingly Popular; How To Make Them Fuel-Efficient?It wasn't so long ago that all-wheel drive was restricted to Jeeps, trucks, and the occasional esoteric supercar. Now, according to data from Polk cited in The Detroit News, it's fitted to almost one third of the vehicles sold in the United States. MORE: 2014 Jeep Cherokee: All The Details From NY...
John Voelcker -
Envia's High-Energy Battery Cell Mired In Dispute, GM Cancels DealResearchers and development firms regularly reveal battery-technology breakthroughs. Now, Envia Systems--one company that gained much public attention by promising such a breakthrough--faces two lawsuits. One claims that Envia stole its technology from other companies. And General Motors, which...
Antony Ingram -
The month wouldn't be complete without another battery technology breakthrough, and this time it's the turn of lithium-sulfur technology. Researchers at the US Department of Energy’s Lawrence Berkeley National Laboratory are experimenting with a lithium-sulfur battery design with twice the specific energy of lithium-ion batteries, and a usefully long life under repeated charging and discharging cycles. According to Green Car Congress, such batteries would also be cheaper and safer than lithium-ion designs--without the overheating and fire issues that have made the news over the last few...
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Nissan R&D Chief: Carbon Fiber Is Good For Planes, Not CarsNissan has put a lot of investment into the battery and all-electric powertrain technology in its all-electric Leaf. Yet outside of that, the Leaf is a pretty ordinary small car in materials and layout. Meanwhile, the somewhat more expensive BMW i3 takes a radically different approach to materials...
Bengt Halvorson -
Rotary Engine Lives On In Range-Extended Electric Mazda 2 PrototypeMazda is a relative minnow in the auto industry sea, but for such an independent company it punches above its weight in engineering terms. It's still one of few companies to offer a simple two-seater sports car in a world of more profitable crossovers and hatchbacks. It's developed an entirely new...
Antony Ingram -
Honda Refines Uni-Cub Electric Personal Mobility DeviceHonda's Super Cub motorcycle is one of the most important motor vehicles ever made. With more than 60 million produced since 1958 it's done more to get people moving than any other motorized vehicle in history. Honda's electric Uni-Cub has done none of those things but its ethos is the...
Antony Ingram -
Battery Lessor For Electric Renault Zoe Can Halt Recharging RemotelyDigital Rights Management, or DRM, is either the scourge of the digital age or a necessary evil to ensure people who create content get paid for it--depending on who you believe. It's essentially a collection of technologies that determines how you can use digital content or technology after you've...
Antony Ingram -
Bio Batteries: Researchers Use Viruses To Improve Electric-Car Energy Storage (Video)Researchers at MIT say that a benign virus could be the next step in improving lithium-air battery technology. Viruses typically have negative connotations--think seasonal flu or malicious files sent to your computer--but biological technology is an increasingly important research topic and one...
Antony Ingram -
Yesterday we listed the nominees for Green Car Reports' Best Car To Buy 2014 award: two battery-electric vehicles, one hybrid, one diesel, and one very fuel-efficient gasoline car. But what do our nominees say about the state of green-car design this year? Overall, they highlight four trends to keep in mind as you shop for your next car. (1) Electric cars are getting more efficient. The 2014 Chevrolet Spark EV has the highest EPA combined efficiency rating of any plug-in electric car sold in the U.S. today: 119 MPGe, or miles-per-gallon-equivalent. (MPGe is a rating that looks at how far an...
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Tesla Cars To Use AT&T Wireless Internet ServiceAT&T will support the many Model S functions that rely on wireless Internet connections.
Stephen Edelstein -
Volvo Develops Structural, Supercapacitor Nanobatteries For Future Electric CarsBatteries in electric and hybrid cars--and this may not come as much of a surprise--are large, and they're heavy. Reducing the size and weight of these vital components is priority number one for scientists all over the world, and Volvo is among them with its latest technological development. Using...
Antony Ingram -
2014 Honda Accord Hybrid Has No Transmission: How It WorksThe 2014 Honda Accord Hybrid has no transmission. To be more precise, there's nothing in a form we'd normally recognize as a transmission—no conventional automatic transmission, no automated dual-clutch system, no belt-and-pulley continuously variable transmission (CVT) either. There's no...
Bengt Halvorson -
IIHS Unveils First Frontal-Crash Protection Ratings; 13 Of 74 High-RatedThe IIHS is now rating systems that autonomously intervene to help prevent crashes.
Stephen Edelstein -
Lighter Composite Wheels Cut Weight Of New 2015 Audi A8Lighter wheels could help improve this big luxury sedan's fuel economy.
Stephen Edelstein