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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

2016 Mazda MX-5 Miata battles Toyota GT86 on track

It's got two doors and a 2.0-liter four-cylinder engine up front, driving the rear wheels. It's made in Japan, and as far as bang-for-your-buck goes, it's a downright bargain. So which are we talking about, the Mazda MX-5 Miata, or the Toyobaru coupe known alternately as the Subaru BRZ, Scion FR-S, or Toyota GT-86? The answer is "yes," and it just goes to show, roofs notwithstanding, how close these two vehicles really are to one another. Which one is your favorite may come down to a matter of personal taste, but for its latest video, Auto Express set out to find out which laps faster around the track. On paper at least, the Toyota's 200 horsepower will trump the Mazda's 155 any day of the week, and twice on Sunday. Then again, the Miata does weigh a good 400 pounds less, even with the 2.0-liter engine and despite its convertible bodystyle – but is that enough to make up the difference? You're going to have to just watch the video for yourself to find out. All we'll tell you is that the match is pretty darn close – what you might call a photo finish, if they were actually racing each other at the same time as opposed to each racing the clock separately. So watch the video above and voice your support for your favorite little Japanese sports car in the Comments section. Related Video:

Toyota and Lexus show off advanced safety research vehicle [w/video]

While Google and Audi explore the possibilities of autonomous vehicles, Toyota and its Lexus division are studying the intermediate step of vehicles equipped with a deep suite of technology that help drivers make the best decisions. Introduced at this week's Consumer Electronics Show in Las Vegas, the Lexus advanced safety research vehicle is an LS sedan fitted with three high-def color cameras to detect objects up to almost 500 feet away, 360-degree Light Detection and Ranging (LIDAR) lasers that can detect objects up to 220 feet away, three radar units to keep track of other vehicles at intersections, a precision odometer on the rear wheel, GPS that estimates orientation and an accelerometer.
Currently testing at a purpose-built 8.6 acre urban testing ground at the Higashi-Fuji Technical Center in Susono, Japan the Toyota research vehicle is being used to study how to make better drivers, as well as figuring out how to reduce crashes as the industry's journey through passive and active safety systems progresses. In the event of a crash, new rescue systems are also being tested.
Further investment is being put into the Intelligent Transportation System (ITS) that would use shortwave signals to harness information from the car and from other vehicles on the road, as well as roadside infrastructure and even pedestrians. Toyota reasons it could then build a picture of interactions and, for instance, alert the driver to a potential collision at a blind intersection.