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Toyota R&D shows off free piston engine linear generator for future EVs

We often hear how an electric vehicle powertrain architecture allows vehicle designers much more freedom than a traditional ICE powertrain does. With differently shaped battery modules and small electric motors, there are lots of way to put the pieces together. With today's plug-in hybrid technology, engineers still need to put a decent-sized ICE somewhere, but new technology from Toyota could free up the gas-electric vehicle designers of the future. Presented at the recent SAE World Congress in Detroit, the idea from Toyota Central R&D Labs Inc. and involves what is called a Free Piston Engine Linear Generator (FPEG). Think of it as a sort of one-cylinder, two-stroke mini-engine that can work either as a generator (thank to magnets and a linear coil) or to directly drive a vehicle. The current prototype is a 10-kW unit that Toyota say would provide enough power to get a B- or C-segment electric vehicle up to highway speeds (75 miles per hour) when paired up to offer 20 kW. Pairing the FPEGs is also important to minimize vibrations. One system tested by Toyota had a 42 percent thermal efficiency, but the engineers are working to improve the overall efficiency even further. You can watch an animated video of the piston in action here (click on "Outline") and see the SAE papers here and here. More technical details are available at Green Car Congress. News Source: Toyota Labs via Green Car CongressTip: Thanks, Joe V. Green Misc. Auto Shows Toyota Technology Emerging Technologies Electric generator

Anti-EV messaging alive and well at Toyota, sort of

The folks at Toyota in Japan can be pretty blunt about electric-vehicle technology prospects as a viable transportation alternative to the internal combustion engine. Here in the states? Slightly more sanguine. Toyota global head of research and development Mitsuhisa Kato, according to Automotive News, discounts the potential of substantial EV sales in the near future because the appropriate technology that provides comparable driving distances and fill-up times relative to conventional vehicles doesn't yet exist. While Toyota has been conducting testing programs with shorter-commute-distance EVs in countries such as Japan and France, its only production EV in the US is the RAV4 EV, and Toyota sold just 546 of those in the States during the first half of the year. Toyota is much more excited about the debut of its first hydrogen fuel-cell production vehicle, in both Japan and the US, next year. Toyota Motor North America spokeswoman Jana Hartline was a little more charitable when discussing the EV's prospects in an interview with AutoblogGreen. "For shorter range, EVs serve a really great purpose, but as far as having equal mile range to an internal combustion engine, there's going to need to be some serious breakthroughs," Hartline said. "And that where the fuel cell comes in." Last month, Toyota said its fuel-cell sedan that will debut in Japan next April will be priced at about $69,000, though the company emphasized that it shouldn't be assumed it will be priced similarly in the US and Europe. Toyota hasn't released many performance details, though the sedan is expected to have a full (hydrogen) tank range of about 435 miles, or about five times that of a Nissan Leaf. Read here for Autoblog's First Drive of Toyota's fuel-cell sedan.

10 automakers sued over keyless ignitions

Keyless ignition has rapidly proliferated throughout the auto industry to become a fairly normal feature on new cars. It's supposed to offer the convenience of keeping the fob in your pocket and just pressing a button to drive away. However, ten major automakers are now being sued in US District Court over claims that the system is dangerous, Reuters reports. The suit alleges that people are forgetting to shut off the engine, and the lack of an idle timer is the cause for 13 deaths by carbon monoxide poisoning and multiple injuries. The suit currently includes 28 plaintiffs, according to Reuters, but the lawyers are asking for class-action status to potentially add many more. The case goes after a major swath of the industry, including BMW, Daimler, FCA, Ford, General Motors, Honda, Hyundai, Nissan, Toyota, and Volkswagen, plus their related brands like Acura, Infiniti, Mini, and Lexus. In all, over five million vehicles are affected. The assertion here is that people walk away from their vehicle without shutting it off because they believe the engine shuts off automatically. If parked in a garage, carbon monoxide can build up, leading to poisoning. The lawyers claim automakers know this is a problem and also cite 27 complaints to the National Highway Traffic Safety Administration about the issue, according to Reuters. The plaintiffs are asking for an automatic shut-off and damages from the companies. These concerns have come up before, though. Toyota previously faced a lawsuit over a carbon monoxide death after a woman accidentally left her Lexus running. Also earlier this year, GM recalled 64,186 examples of the 2011-2013 Chevrolet Volt because owners weren't shutting them off. The problem resulted in two injuries, and the company released a software update to limit the idling time.