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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

Daimler, Toyota, BMW to lead $10-billion hydrogen investment

Daimler, BMW, and Toyota are leading a group of 13 companies pledging to invest more than $10 billion during the next five years to spur enough infrastructure-building and technology advancements to get more of the general public to buy hydrogen fuel-cell vehicles. The automakers, which also include Honda and Hyundai, as well as companies such as Shell, AirLiquide, Linde Group, and Total SA, are part of what they're calling the Hydrogen Council. The group made its announcement in Davos, Switzerland, on Tuesday. The Hydrogen Council will pledge to accelerate its rate of hydrogen-related investments, which currently stand at about $1.5 billion annually. The coalition says its work represents a continuation of the 2015 Paris Agreement, in which many of the companies agreed to address the issue of climate change. The group says that hydrogen, which emits water vapor when used in fuel-cell vehicles, "can play an important role in the transition to a clean, low-carbon, energy system." The Hydrogen Council also vowed to push global governments to accelerate public investment in hydrogen-related infrastructure. Relative to other drivetrain technologies, hydrogen fuel-cell vehicles are in their relative infancy in terms of adoption because of the high cost of both building fuel cell vehicles and setting up a hydrogen-refueling infrastructure. Toyota is the only automaker that sells a production fuel-cell vehicle in the US. The Japanese company, which introduced its Mirai domestically in late 2015, sold 1,034 of them in the US last year. Daimler subsidiary, Mercedes-Benz, used Tuesday's announcement to remind people that it would start selling its GLC plug-in hydrogen fuel-cell crossover this year. There are only 33 publicly accessible hydrogen refueling stations in the US, including 30 in California, and one each in Connecticut, Massachusetts, and South Carolina, according to the US Department of Energy. By comparison, there are more than 15,000 electric-vehicle charging stations with almost 40,000 outlets in the US. Related Video: Featured Gallery 2017 Mercedes-AMG GLC43 News Source: Daimler/Hydrogen Council via Bloomberg, Automotive News-sub.req. Green BMW Honda Hyundai Mercedes-Benz Toyota Hydrogen Cars infrastructure mercedes f-cell

Toyota recalling 1.67 million vehicles worldwide in 3 campaigns

Toyota is issuing three separate recalls covering 1.67 million vehicles worldwide with most of those models in Japan. It looks like the campaigns' impact on the US may be smaller, though. According to Reuters, Toyota isn't aware of any accidents, injuries or fatalities affecting the models. Some yet-unnamed Lexus models might also be affected.
The largest of the campaigns does not currently affect any US-market vehicles. About 802,000 units of the Toyota Crown Majesta, Crown, Noah and Voxy in Japan are being repaired to replace a seal that could leak in the brake master cylinder. Those already leaking get a new brake booster, as well, according to Reuters.
The only recall currently believed to affect the US is due to a problem covering approximately 759,000 vehicles with 423,000 of them here. The repair is to fix a faulty fuel delivery pipe that could cause a fire if the fuel leaks out. Unfortunately, we don't know which models it covers. Autoblog spoke to Toyota spokesperson Mona Richard and was told the information was still "under embargo." When exactly that embargo will lift isn't yet known, but we're on the case.