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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

Volvo, Kia and BYD duke it out in the finals for World Car of 2024

Three electric vehicles — none produced by an American manufacturer — will compete next month for the title of 2024 World Car of the Year, it was announced Monday. The finalists are the Kia EV9, the Volvo EX30 and the BYD Seal (shown above). The latter two are built in China. The three top finalists in five other categories were also named at the Geneva Motor Show in Switzerland. The winners in all six categories will be revealed live during an awards ceremony at the New York International Auto Show on March 27. This year marks the 20th year of the World Car Awards and the partnership with the New York show. Besides car of the year, the other finalists are: Electric vehicle: BMW i5, Kia EV9, Volvo EX30; Luxury car: BMW 5 Series/i5, Mercedes Benz E-Class, Mercedes Benz EQE SUV; Performance car: BMW M2, BMW XM, Hyundai Ionia 5 N; Urban car: BYD Dolphin, Lexus LBX, Volvo EX30; World Car Design: Ford Bronco, Ferrari Purosangue, Toyota Prius. Only Ford among U.S. companies has an entry in the final selections, and only in one category, design, for the Bronco. BMW has four vehicles in the finals, Volvo has three, Kia and Mercedes have two each. BYD from China has two entries as well. The Seal went on sale in in its home market in 2022 and is now available in most of the rest of the world. The BYD Co. (which stands for Build Your Dreams) has surpassed Tesla to become the worldÂ’s biggest maker of electric vehicles, and has its sights set on the U.S. The selection process for World Cars involves 100-plus automotive journalists from 29 countries who vote, as they review and test-drive the eligible vehicles for the 2024 awards. Their journey is captured virtually on World Car TV. Design/Style Geneva Motor Show BMW Ferrari Ford Hyundai Kia Lexus Mercedes-Benz Toyota Volvo Best Cars World Car of the Year

J.D. Power study sees new car dependability problems increase for first time since 1998

For the first time since 1998, J.D. Power and Associates says its data shows that the average number of problems per 100 cars has increased. The finding is the result of the firm's much-touted annual Vehicle Dependability Study, which charts incidents of problems in new vehicle purchases over three years from 41,000 respondents.
Looking at first-owner cars from the 2011 model year, the study found an average of 133 problems per 100 cars (PP100, for short), up 6 percent from 126 PP100 in last year's study, which covered 2010 model-year vehicles. Disturbingly, the bulk of the increase is being attributed to engine and transmission problems, with a 6 PP100 boost.
Interestingly, JDP notes that "the decline in quality is particularly acute for vehicles with four-cylinder engines, where problem levels increase by nearly 10 PP100." Its findings also noticed that large diesel engines also tended to be more problematic than most five- and six-cylinder engines.