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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

10 automakers shack up in Detroit hotel to talk Takata airbags

Since Takata has decided not to take the lead concerning potential issues with its airbag inflators, the automakers have. Perhaps that's unsurprising, since it's the automakers, not Takata, that will take a beating on the dealership floor if consumers decide its models are a health hazards. The Detroit News reports that Toyota, Honda, General Motors, Ford, Chrysler, Mazda, BMW, Nissan, Mitsubishi and Subaru met in a hotel conference room near the Detroit Metropolitan Airport last week to sort out a way to understand the technical issues involved. So far, faulty airbag inflators have been ruled the cause of five deaths and 50 injuries around the world, but neither Takata nor investigators understands exactly why the inflators are malfunctioning. The National Highway Traffic Safety Administration recently asked Takata to issue a national recall, Takata declined, citing a minuscule failure rate and the fact that it's still investigating the issue. Toyota and Honda then made an industry-wide appeal for "a coordinated, comprehensive testing program" that would pinpoint the problem inflators and get them replaced, and that's what the Detroit meeting was about. Numerous issues, however, will make this a long row to hoe: simply getting the parts to replace the nearly 20 million inflators in cars recalled around the world so far - even working with other suppliers - will take a years, but more importantly, no one knows if the replacement inflators currently being installed will suffer the same issue. Answers will hopefully come quickly with Takata, the ten automakers and NHTSA all independently investigating the problem.

Toyota NA CEO says his excitement for hydrogen sedan is rising

Toyota has an undeniable vested interest in seeing its hydrogen sedan succeed when it goes on sale in the US next year, so it's no surprise that the company's North American CEO, Jim Lentz, says that he's got more hope for the car now than ever before. And if we remember ways that others in the company, like Bob Carter, have loudly sung hydrogen's praises, we have to assume that positivity is running awful high in Torrance. In fact, Lentz said that the US side of the company is far more excited by the H2 car than colleagues in Japan. Speaking at The Wall Street Journal's ECO:nomics conference in Santa Barbara, CA this week, Lentz said: After we've seen the product, understand its range, its driving dynamics, its refueling, we're a lot more bullish than Japan - probably about fivefold more bullish. It's just a question of how many can be produced now. Well, we've driven this car, and we still feel that Toyota is placing a big bet on the technology. One important issue is cost, but Lentz would not say exactly how much the car costs to make or what it will be priced at. He did say, though, that the production cost has dropped by 95 percent from the $1 million price tag the car wore ten years ago. That hints at a production cost of around $50,000. Lentz also said he thinks it will take at least a decade for hydrogen vehicles to hit sales of 500,000 per year in the US. Speaking to Bloomberg, he said: Their acceptance could get off to a quicker start than the hybrids did. I think you're going to see a lot more marketing of the concept of fuel cell much sooner than you did for hybrids, because basically the whole industry is behind it.