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Discussion Topics for Autoblog Podcast Episode #336
Jeep rear-mounted fuel tank controversy

Toyota develops new pre-collision system with steering assist

A number of automakers are working on developing fully autonomous cars, but it looks like the groundwork for such technologies will likely show up first as semi-autonomous systems for both safety and convenience. Following recent announcements from Nissan and Ford in this area, Toyota has now released information for some of its advanced semi-autonomous technologies that could be offered in production cars over the next few years.
On the safety front, Toyota's new pre-collision system with pedestrian-avoidance steering assist is aimed at protecting the folks who aren't in the car. This system combines visual and audible alerts with automatic brake assist and automatic steering. If warnings don't get the driver to slow down, the brake assist kicks in if a collision is very likely, but if that is still not able to avoid the impending collision (and if there is enough room to do so), the car can automatically steer itself around the pedestrian. This sounds most beneficial for last-second dangers such as a person accidently stepping out into the road in front of a car. Toyota hopes to have this technology available to customers by 2015.
The Japanese automaker is also testing a suite of technologies called Automated Highway Driving Assist (AHDA). The key part of this is a new adaptive cruise control system that uses vehicle-to-vehicle (V2V) communications rather than a radar-based system. This cooperative-adaptive cruise control allows vehicles to communicate their acceleration and deceleration data with other cars, which Toyota says this helps to improve fuel efficiency and traffic flow. Also a part of AHDA is the Lane Trace Control feature, which sounds like a next-gen lane keep assist. This system uses cameras, radar and a computer to keep the vehicle in a "smooth driving line" by being able to change steering angle, engine torque and braking force. Toyota says this technology could be in place by the "mid-2010s."

Japan wants to boost fuel-cell numbers 100x by 2020

How many hydrogen refueling stations will Japan need? Can each station handle 250 fuel-cell vehicles? They can in the Japanese government's new plans for hydrogen fuel-cell vehicle growth and station deployment throughout the country. With Prime Minister Shinzo Abe continuing to trumpet fuel cells as the advanced powertrain of the future, the government says the number of fuel-cell vehicle on its roads will multiply by 100 within the next four years, according to the Japan Times. Specifically, Japan, which is home to about 400 fuel-cell vehicles today, hopes to have 40,000 by 2020 and a whopping 800,000 by 2030. More importantly, Japan has 80 stations either in operation or slated to be deployed soon, and hopes to double that number by the end of the decade. For perspective's sake, the US has about two-dozen publicly accessible hydrogen fuel cell stations today, according to US Department of Energy. The newer ones are can dispense 100 kilogram a day, which can fuel 20-25 cars a day. Japanese automakers Honda and Toyota appear to be trying to do their parts in the H2 plan. Earlier this month, Honda started leasing its Clarity fuel-cell vehicle in Japan and is planning to bring them to California later in the year. The vehicle, which is priced at about $68,000 in Japan, is said to be able to travel about 466 miles on a full hydrogen tank, per the more lenient Japanese driving cycle (roughly 300 miles on the US scale). Honda will start production at a rate of 200 vehicles a year. With skin in the game, though, Honda indicated late last year that it was frustrated with what it said was the slow pace of fuel-cell station deployment in Japan, according to Bloomberg News. Honda was collaborating with hydrogen supply company Iwatani Corp. on what they called a "Smart Hydrogen Station," though that concept was in its testing phase as of last December. The Mirai also started sales in Japan and debuted in limited numbers in California last year. Last fall, Toyota set a rather lofty goal of selling 30,000 fuel-cell vehicles a year by 2020 as part of its Toyota Environmental Challenge 2050. Related Video: News Source: Japan TimesImage Credit: YOSHIKAZU TSUNO via Getty Images Green Honda Toyota Hydrogen Cars