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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

The techie choice | 2017 Toyota Prius Prime Quick Spin

The Prius nameplate has been inexorably tied to the green car scene for a long time now. When Toyota unleashed the Prius Prime upon the world, we said it was the best Prius yet. But this is no longer a world where Toyota's hybrids are automatically crowned king. Our recent time with the Hyundai Ioniq trio was a stark reminder that the economical, eco-conscious competition is getting stiffer. We put some miles on a Prius Prime to see how our recent Ioniq Plug-In Hybrid test colors our view of Toyota's prime contender. Our first impression: the Prius design is very clean and inorganic. As sterile as it feels, the design appears to have a lot of actual thought behind it. Our Advanced trim tester is spiritually in touch with the mobile gadget culture, with a huge touchscreen, digitization of seemingly everything, and white and black glossy plastic aesthetic. It's a tech-heavy design that will likely seem familiar to those of us who have been interfacing with Apple designs for the past 10 or so years. The Ioniq Plug-In Hybrid, on the other hand, remains truer to the look and feel most drivers expect from their commuters. It's less about user interface, modes, and drive data, and more about just getting behind the wheel and driving. The Ioniq Plug-In Hybrid hardly even distinguishes itself from its plugless counterparts, opting to go green under cover rather than the in-your-face futurism the Prius projects. It retains the traditional instrument cluster in front of the driver, too, which the Prius Prime lacks. In the Toyota, you'll have to look around the car for the right display with the information you're looking for – there's the huge central touchscreen with all its menus, as well as smaller displays above it on the dash – or you can find your speed on the HUD. The Prius is composed in its handling, but doesn't provide much of the sensory feedback that makes one feel connected to the chassis. The steering feels super artificial, but the car stays fairly flat in the corners without providing too much feedback through the seat of your pants. Hyundai's offering, though, proved to be a surprisingly willing dance partner in the corners. While feeling equally as capable as the Prius, the Ioniq's sense of connection through steering and suspension made the act of stitching one turn after another together enough to get our blood pumping. Sport mode makes the Prius Prime slightly livelier, though.

See how Toyota Mirai hydrogen fuel cell car is made [w/videos]

Toyota kicked off production of the Mirai hydrogen fuel cell sedan at its Motomachi factory campus in December, and at the time the company had orders for 200 of them. In just the few months since then, demand has already jumped to requests for at least 1,500 of the potentially revolutionary vehicles. For the first time, the Japanese brand is taking viewers into the innovative model's production process and showing the sedate pace of putting them together. The line used for the Mirai was formerly home to Lexus LFA production. Like that low-volume, cutting-edge supercar, Toyota is prioritizing quality and precision for its fuel cell vehicle. At the moment, it's building just three of the sedans per day with a tight, dedicated team. According to Automotive News, there are just 13 people assembling the cars right now, and at most they could only complete 10 per day. The production process for the Mirai is more akin to a boutique sportscar than the high-volume efficiency Toyota usually shows. There's no belt moving them along, and instead each one is pushed between areas. With so much riding on these models, this approach is meant to guarantee an attention to quality. "These facilities are not so advanced. Rather, we rely on the work of our skilled employees. This is similar to how things were when Toyota was just starting out," said Toyota President Akio Toyoda during a ceremony at the plant, according to Automotive News. Toyota has released a gallery of images and five videos showing the major steps in the Mirai's production process, including the complicated installation of the fuel cell stack. All of the clips are embedded below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.