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Toyota engineer warns automous cars could increase fuel use, urban sprawl

An increasing number of people are starting to consider the potential downsides of a transition to autonomous cars. The FBI is already looking at them for the potential ill effects on law enforcement, and a scientist for Toyota is raising the possibility that driverless vehicles could actually be detrimental to the environment over the long term.
Ken Laberteaux, who studies future transportation for Toyota, thinks that autonomous cars could lead to more pollution, not less, says Bloomberg. However, Laberteaux's theory isn't so much based purely on science as it is considering behavioral and historical trends. "US history shows that anytime you make driving easier, there seems to be this inexhaustible desire to live further from things," said Laberteaux during a presentation at the Automated Vehicles Symposium in San Francisco, CA, cited by Bloomberg.
Laberteaux's belief is that if commuters can make their drives easier, then they will be more willing to live farther away from the cities where they work. The end result would be more urban sprawl and increased pollution from the longer travel times.

Toyota drops detail about 414-hp Hybrid-R concept powertrain

The Toyota Yaris Hybrid-R Concept has been teased already, offering up little glimpses and details of the Frankfurt-bound vehicle. And while those few, shadowy shots have been great, we've really wanted to know how this hatchback would deliver its promised 400-plus horsepower. Under hood sits a 1.6-liter, race-derived, direct-injection, turbocharged four-cylinder that powers the front wheels. Sounds peachy, but with 414 horsepower splashed across the page, we're going to need something more than a 1.6-liter, turbo four.
A supercapacitor, developed from the Toyota TS030 Hybrid Le Mans racer sits in place of a hybrid's traditional battery packs. The benefit, according to Toyota, is that power can be more rapidly absorbed and discharged than in a traditional battery system, like nickel metal-hydride.
The gas engine is joined by a trio of 60-horsepower electric motors. Two of the them power the rear wheels, while the third sits between the engine and the six-speed, sequential gearbox. Developing the same amount of power as the rear-axle motors, this centrally located motor channels power to the race-derived supercapacitor during braking, and ships extra grunt to the rear wheels under acceleration when the front wheels start to lose grip. Besides the distributive power of the central motor, the rear electric motors can adjust the amount of torque flowing to each wheel, much like a differential.

Toyota expects hybrids will soon reach 20-percent sales volume globally

Hybrids have come quite a long way from their roots as dull, slow, boring ecomobiles. Today, Porsche sells three hybrid models, one of which is the amazing 918 Spyder. BMW will soon sell four, including a low-slung, two-seat sports car. Even Ferrari and McLaren, full-fledged hypercar manufacturers, are embracing the tech. And all of these cars are sold alongside the same sort of boring cars that popularized hybrids in the first place. According to Toyota Chairman Takeshi Uchiyamada, though, we should see an even bigger increase in the number of hybrid vehicles in the coming years.
"I foresee hybrid models pretty soon reaching 20 percent of global sales from about 13 percent to 14 percent now," Uchiyamada-san told Automotive News. Uchiyamada is the man behind the original Prius, which gives him some degree of authority on making predictions about hybrid adoption.
What's remarkable, though, is that the 20-percent figure doesn't include plug-in hybrids, just gas- and diesel-electric models. "Suppliers need higher volumes to slash costs of components specific to plug-in models, including batteries that should be bigger and more capable than the ones used in traditional hybrids," Uchiyamada told AN.