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The Toyota FCHV is a current hybrid hydrogen fuel cell vehicle development programme, which was leased to a limited number of drivers in the USA and Japan beginning in 2002.〔 "FCHV" stands for "Fuel Cell Hybrid Vehicle". A number of prototypes have been produced, up to the latest FCHV-adv ("advanced"). The FCHV designs are based on the first generation Highlander SUV, although a bus version is also in development. The powertrain consists of a 90 kW fuel cell supplied from onboard compressed hydrogen tanks, and a nickel-metal hydride accumulator battery in parallel. Battery and fuel cell can provide power to the 90 kW driving motors either singly or together. The mechanism is very similar to the Hybrid Synergy Drive in the Toyota Prius and Toyota Auris HSD but with the fuel cell replacing the petrol internal combustion engine, thus minimising greenhouse gas emissions at point of use. At low speeds the FCHV can run on battery alone, with a range of about .〔 For high performance, such as when accelerating from rest, the fuel cell and battery supply power in tandem. The battery can also charge by regenerative braking, improving overall efficiency. There are currently five generations of the FCHV, beginning with preliminary prototypes FCHV-1 (1997) and FCHV-2 (1999). The FCHV-3 was presented at the "International Symposium on Fuel-Cell Vehicles" in March 2001 in Tokyo, and the FCHV-4 was the first production version, although Toyota does not plan a full-scale commercial hydrogen fuel cell vehicle launch until around 2015. As of 2008 the FCHV-adv was available for lease in Japan. The use of the vehicles by government ministries and companies is intended to provide detailed development feedback on the FCHV performance under varied driving conditions. In 2007 a FCHV was driven between Osaka and Tokyo on a single tank of hydrogen, proving that a hydrogen vehicle could compete with conventional vehicles for range. In August 2009, Toyota USA announced an estimated FCHV-adv range of from a tank of hydrogen, based on a test trip in "real-world" conditions between Torrance and San Diego, California. ==Hydrogen storage== The 700 Bar (10000 PSI) hydrogen tanks holds 156 liters - enough fuel for a range of on the Japanese 10-15 test cycle and on the Japanese JC08 test cycle. Test vehicles on the Japanese 10-15 test cycle average with a top speed of .〔(【引用サイトリンク】title=Japanese 10-15 Mode )〕 Vehicles on the JC08 test cycle average and a top speed of .〔(【引用サイトリンク】title=Japanese JC08 Cycle )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Toyota FCHV」の詳細全文を読む スポンサード リンク
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