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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

Toyota found not at fault in alleged unintended acceleration crash

Toyota has already paid out millions and billions of dollars in settlements surrounding unintended acceleration, but the first lawsuit in the matter, which headed to a California court in July, has reached a verdict. Following the 2009 death of Noriko Uno, whose 2006 Camry was hit by another car and then sped out of control before crashing into a tree, the jury found that Toyota was not at fault in the crash.
Even though the 2006 Camry (shown above) wasn't involved in any of the unintended acceleration-related recalls and it was not equipped with a brake override, Automotive News reports that the jury's verdict says there was no defect in the car and actually blames the entire incident on the driver that ran into Uno's car - to the tune of $10 million. The accident started when the other driver ran a stop sign and hit Uno's car, and the report says that medical conditions (including diabetes) caused Uno to fail to stop her Camry.
The AN article also states that this lawsuit was a bellwether case for around 85 other personal-injury and wrongful-death suits against Toyota, but there are still many impending suits across the country. Scroll down for an official statement on this particular case from Toyota.

Why Lexus shies away from plug-in hybrids

Lexus may have softened its stance a bit from the anti plug-in vehicle ads the Toyota luxury badge ran last year, but at least one executive from the company casts a pretty critical eye towards the concept as a way to cut both emissions and refueling costs. In fact, Lexus doesn't really buy the fact that buyers of plug-in hybrids are really looking to save both gas and the environment, Green Car Reports says, citing an interview at the recent New York Auto Show with Lexus executive Mark Templin. Templin also said hydrogen fuel-cell technology may be a better way to edge towards zero emissions. Templin decried plug-in hybrid technology because it adds weight to vehicles, which contributes to poor emissions figures in the process. He added that plug-in vehicle buyers are motivated more by potential tax credits and solo driving rights in high-occupancy vehicle (HOV) lanes than cutting back on fuel use. Last summer, Lexus ran an supposedly tongue-in-cheek print ad poking fun at how long it takes to charge a plug-in vehicle and how using air conditioning can shorten a car's charging range. Last spring, Lexus had to backpedal from an anti-electric ad it ran that had serious mistakes about hydrogen infrastructure. News Source: Green Car Reports Green Lexus Toyota Hybrid PHEV