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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

Vehicles awarded IIHS Top Safety Pick awards skyrockets for 2015 [w/video]

By practically every measure, passenger vehicles in the US are continuing to get safer. With the year rapidly coming to an end, the Insurance Institute for Highway Safety is releasing its annual list tallying of the scores for the latest vehicles to see how they compare to last year. Judging by the agency's evaluations, the numbers look quite positive. According to the institute, 71 vehicles earned either the Top Safety Pick or Top Safety Pick+ rating so far in its testing for 2015. Among the latest winners, there have been 33 TSP+ awards and 38 TSP medalists. That's a healthy increase over the 22 TSP+ and 17 TSP grades in 2014. The figures appear even more impressive when you consider that it keeps getting harder to earn the + designation. In the latest round of testing, a vehicle must offer some form of front crash prevention automatic braking to get the mark. Previously, just a warning to drivers was necessary. This list also illustrates the ways that automakers adapt to new testing procedures. In 2013 there were 117 TSP ratings and 13 TSP+ awards. Then, the IIHS mandated that to be a safety pick, a model had to score Good in the institute's four crash tests, plus a Good or Acceptable in the small overlap front test. That brought a plunge in 2014 to just 17 TSP grades. With the numbers climbing again, companies apparently have deciphered how to perform better. Some brands especially stood out on this year's list. The IIHS praised Volvo, Mercedes-Benz and Acura for offering standard front crash prevention systems on some models. Subaru received at least one of the awards for all seven of its models. Toyota also had seven, and the Honda brand did too – though the institute counts the two- and four-door versions of the Civic and Accord separately. Check out the full announcement below and a video about this year's winners. The full list can be viewed, here. Safety gains ground: More vehicles earn top honors from IIHS The number of vehicles earning either of the Institute's two awards has jumped to 71 from 39 this time last year, giving consumers more choices for optimum protection in crashes. The number of winners in the top tier - TOP SAFETY PICK+ - has increased by 11 for 2015, despite a tougher standard for front crash prevention. "This is the third year in a row that we are giving automakers a tougher challenge to meet," says IIHS President Adrian Lund.

This classic Firebird restomod swallowed a Prius

It takes an unusual eye to look at a 1967 Pontiac Firebird and see the Toyota Prius hidden inside. But that's just the kind of eye that a creative mechanic known online as "Bill the Engineer" has. Bill is updating his old Firebird into a true classic for the 21st century and has documenting the changes over at Priuschat and EcoModder. The TL,DR version of the story: he's replacing the worn-out powertrain with the gas-electric hybrid one from a Prius V, because it turns out the two vehicles have almost exactly the same wheelbase. Bill, who's from Columbus, Ohio and doesn't want his full name used, said in his posts on the conversion project that he's made many memories with this vehicle since buying it back in 1979. Since then, a few moves, a few decades, and some time in storage meant that the car would no longer function as he wanted it to. As he wrote, "when it comes to mice in the vehicles IT IS WAR." His solution is to make new memories and making a greener vehicle, and so we wanted to ask him how things have been going. Bill's been traveling a bit recently, but told AutoblogGreen that he's now figuring out the next steps for this amazing and complicated project. "I always plan things out before I do them," he said. That's the only way something like this can work. ABG: I think we have to start with what gave you the inspiration for this project. Was it simply that you had the two cars and wanted to see them merged into one cool mashup, or was it something else? "One day my wife wondered out loud if the car could be converted into a hybrid... The rest is history." Bill: I have been the owner of my 1967 Firebird convertible since 1979 when I bought it for $750.00. I drove it for years and made many memories. Afterward it was in storage for many years during which time mice at their way into the car and trashed the interior and wiring. I started working on a conventional restoration but always ran into major problems with hidden corrosion, electrical issues and an engine on its last legs. The car was never going to be as nice as I wanted going the conventional route. One day my wife wondered out loud if the car could be converted into a hybrid like our two daily driver Prii. That got me thinking about how it could be done. The rest is history... ABG: It looks like you started in late 2014. Have things gone well since then, or has it been one hassle after another? What has been the biggest setback, and what were the biggest victories?