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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

Toyota Camry could lose No. 1 sedan spot next year [w/video]

Eleven months after Toyota claimed the 2012 sales crown a couple of months early thanks to the Camry, the headlines this year have been quite a bit different to last. Even though the Camry remains the best selling car so far in 2013 and its volume has increased year-on-year, it has lost market share due to the 20-percent sales explosion in the midsize segment. That means people are buying more of the competitor offerings like the Honda Accord, Nissan Altima and Ford Fusion - the Altima, in fact, outsold the Camry by 100 units in March.
In July it was reported that Toyota was upping Camry incentives and fleet sales to keep its lead and that dealer inventory was climbing as, again, competitors got better at fighting the champion. In August Ford doubled down on production of the Fusion, adding a line in Flat Rock, MI to keep up with demand.
Bloomberg has a report looking at the numbers behind the Camry's dominance, as well as what appears to be a recorded group interview with Toyota USA CEO Jim Lentz, and wonders aloud whether the Camry will be able to hold its top spot in 2014. Barring catastrophe it has this year locked up, being more than 30,000 sales ahead of the next-best seller as of the end of August, but it has done so with higher incentives and lower transaction prices than its competitors. According to Strategic Vision the Camry's consideration rate among consumers has also declined by a percentage point, while the consideration rate for the Accord and Fusion has increased by one point and two points, respectively.

NHTSA investigating 30,000 Toyota Camry Hybrids for brake assist problems

Older model Toyota Camry Hybrids are under investigation by the US National Highway Traffic Safety Administration (NHTSA) for potential braking problems. Enough complaints have poured into the NHTSA website that the agency is now taking a look at the problem, which could affect around 30,000 vehicles from the 2007 and 2008 model years. According to Reuters, 59 complaints have been submitted revolving around an "intermittent loss of assisted braking" which means the car takes longer to stop. Interestingly, the rate of complaints is increasing. Toyota is reportedly cooperating with NHTSA and there has not yet been an official recall on the Camry Hybrids. In 2006, Toyota said Brake Assist was "an electronic function that senses an emergency stop and applies increased braking power once the driver touches the brake pedal." When Toyota unveiled the 2007 Camry Hybrid, it proudly stated that the new Brake Assist function would be standard. Other Toyota hybrids have had problems with their brakes in the past, including the 2010 Prius and Lexus HS 250h hybrid. You can read some of the complaints about Brake Assist in the Camry Hybrids to the NHTSA here. People are saying that the "Check VSC" lights can come on before the brakes loose some of their power and a lot of them are being quoted repair costs of over $3,000 by Toyota dealers. Featured Gallery 2007 Toyota Camry Hybrid View 38 Photos News Source: Reuters Green Toyota Hybrid brakes