1984 Toyota Celica Supra Hatchback 2-door 2.8l, Red/black on 2040-cars

Auto blog

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

This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

Recharge Wrap-up: 1M Lexus hybrids, Best Buy Geekmobile goes Prius

Cummins is developing a plug-in hybrid system for heavy trucks. Its plug-in system for Class 6 trucks (those with a gross vehicle weight between 19,000 and 26,000 pounds) is expected to improve fuel economy by 50 percent. Funded in part by a $4.5-million grant from the US Department of Energy (DOE), the system will use a battery pack and some form of range extending internal combustion engine. The system will employ various drive cycles in order to help commercial fleets save fuel based on their needs. Read more at Gas2. German automaker Borgward, LG Chem, Bosch, and software firm SAP have joined forces to form an electric mobility partnership. Borgward recently revived its brand with a new model, the BX7. Borgward has also announced that two other models, the BX5 and BX6, will be available as plug-in hybrids. SAP will provide software services, and LG Chem will supply battery technology to Borgward. Bosch will supply and help develop a number of components for Borgward cars. Read more at Inside EVs. Lexus has sold its millionth hybrid. The luxury automaker began selling hybrids with the electrified RX in 2005, and the millionth hybrid was a NX 300h sold to a customer in Milan, Italy. "This is my first Lexus," says the customer of that vehicle in a Lexus release, Aldo Pirronello. "... and I am honored to celebrate this important milestone with Lexus!" Lexus currently sells 10 hybrid models worldwide. Read more from Lexus. Best Buy's Geek Squad is switching from Volkswagen Beetle Geekmobiles to the Toyota Prius C. As part of an update to the home electronics chain's house call service, the Geeks will be driving more eco-friendly cars with a refreshed logo. More than 1,000 Prius C Geekmobiles are being deployed nationwide. With the Geek Squad answering more than 5 million house calls a year, the fuel savings from switching to a more efficient hybrid cars means reduced emissions over the 12.6 million miles they'll drive per year. Read more in the press release below. Vehicle of Choice for Geeks? Toyota Prius c An armada of agents is about to roll out in Toyota Prius c. Their mission: to help people across America get the most from their technology. Starting today, Best Buy's Geek Squad will dispatch more than 1,000 of the vehicles – fully decked out as the new Geekmobile – nationwide.