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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

Driving the Audi E-Tron and training like an F1 driver | Autoblog Podcast #597

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and Senior Producer Chris McGraw. First, they talk about what they love and don't love about living with the Polestar-tuned Volvo XC90 T6. Then, they talk about how much they've enjoyed driving the all-electric Audi E-Tron. McGraw lets us know what it's like to eat and train like a Formula One driver for a month, and then we tell him which Toyota or Lexus SUV he should buy. Autoblog Podcast #597 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2020 Volvo XC90 T6 AWD R-Design 2019 Audi E-Tron Training like an Formula One driver Spend McGraw's Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:      

BMW could have a fuel cell vehicle by 2020

The Ultimate Driving Machine may start emitting water vapor, which may not thrill gearheads but could be good for the environment. BMW may have a hydrogen fuel-cell electric vehicle to sell as soon as the end of the decade, UK's Auto Express says, citing people familiar with the process that it didn't identify. And the model will likely be sold within the i sub-brand that includes the i3 electric vehicle and the i8 plug-in hybrid. "We are working on fuel cell development, but we are not able to comment on vehicle plans at this stage or timing at this point," BMW spokesman Dave Buchko wrote in an e-mail to AutoblogGreen on Thursday. Chatter about a potential BMW fuel-cell vehicle has been getting louder in recent months. Late last year, Autocar reported that BMW was mulling using Toyota's fuel-cell system for a version of what would be called the i5 (all the better to quietly cruise the interstate running up and down the West Coast, we guess). BMW and Toyota have been working together on accelerating the development of fuel-cell technology since 2013. Toyota has since made good on the effort of selling fuel-cell vehicles by introducing the Mirai in Japan last year and is preparing to start sales in California later this year. But BMW has been mum, so far. Featured Gallery 2014 BMW i3: First Drive View 33 Photos News Source: Auto Express via Hybrid CarsImage Credit: Copyright 2015 Sebastian Blanco / AOL Green BMW Toyota Hydrogen Cars i5