Toyota FCHV range and history
|Vehicle technical details|
|Production:||2001 to 2008|
|Body and chassis|
|Engine and Powertrain|
|Engine Type:||Electric motor|
|Engine power:||90 kW|
|Weights and Dimensions|
The Toyota FCHV is a series of prototypes of a hydrogen - fuel cell vehicle , introduced in 2001. The successor of the FCHV-prototype built in large series is the Toyota Mirai .
The abbreviation "FCHV" stands for "Fuel Cell Hybrid Vehicle" literally "fuel cell hybrid vehicle". The hybrid should not be confused with hybrids with an internal combustion engine. It is the technical classification as a serial hybrid . When fuel cell vehicle, the drive of an electric car is in addition to a fuel cell stack as a range extenderequipped. The vehicles use the accumulator not only as a buffer, which is charged during braking and the subsequent re-start for additional power to propulsion, but the battery is the main energy storage and can be the only power source in driving mode and load changes quickly over long distances. This concept is used today in most fuel cell vehicles. It is advantageous that the fuel cell can work evenly and thereby wear less.
Toyota currently has five FCHV model generations, the first two of which were 1997 and 1999 FCHV-1 and FCHV-2 predevelopments based on the Toyota RAV4 . Greater attention reached the concept only with the presentation of the FCHV-3 based on the Toyota Kluger V (Japanese name) or Toyota Highlander , as he is called in the US, which has essentially reached series maturity.
The FCHV-3 is the prototype of a fuel cell vehicle that carries gaseous hydrogen in metal hydride reservoirs. The 90 kW PEM fuel cell drives an electric motor in parallel with a nickel-metal hydride battery . In addition, there is a second accumulator as a buffer for driving with back energy ("recuperation"). The vehicle was presented at the "International Symposium on Full-Cell Vehicles" in March 2001 in Tokyo.
The FCHV-4 is the prototype of a fuel cell vehicle that carries gaseous hydrogen in pressure tanks (250 bar). The other parameters are similar to the FCHV-3 (90 kW PEM fuel cell, etc.). The vehicle was apparently developed in parallel with the FCHV-3 and presented in June 2001. This vehicle was street legal and participated in the CaFCP for several years .
The FCHV-5 is the prototype of a fuel cell vehicle that is a natural evolution of the FCHV-4, introduced in October 2001. This prototype uses high purity gasoline as fuel. Since the fuel cell can only use hydrogen, the required hydrogen is produced from the high-purity gasoline by means of a reformer.
The FCHV was introduced in 2002 and is the basis of a small series of fuel cell vehicles, which were tested in Japan and California from 2003 as leasing vehicles. The basic concept of the FCHV-4 was adopted (90 kW PEM fuel cell and 80 kW electric motor), only the pressure of the hydrogen tanks rose to 350 bar.
In 2005, an improved version was delivered to lessee, which has a higher power (90 kW) of the electric motor. Most of the leased vehicles delivered in 2003 were replaced at the end of 2005 with the improved version.
In late September 2007, a further improved version - now with a 700 bar hydrogen tank - drove from Osaka to Tokyo without refueling, which equates to a distance of 350 miles or 560 km.
As of 2008, the again improved version FCHV-adv was presented. These vehicles now have the 700 bar tank, which can hold a total of 6 kg of hydrogen and were advertised in the press with a range of up to 830 km.