Fuel cell vehicle
AssigneeSuzuki Motor Corporation
InventorsYohei Takada, Akinori Honma
Life of this patent
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Abstract
An object of the present invention is to reduce power consumption in a storage apparatus that forms a control purpose power supply while making it possible to detect hydrogen, which has been leaked from a fuel cell system during running, even after stopping the vehicle. To accomplish this object, the power supply for a vehicle controller (23) is maintained by allowing a self-holding relay (35) to stay on even after turning off an ignition switch (11). On the other hand, the power supply for the vehicle controller (23) is turned off upon expiry of a predetermined period of time after turning off a propulsion system unless leakage of hydrogen from a fuel cell system (13) is detected.
Claims5
A fuel cell vehicle including traction wheel, a motor that provides torque to said traction wheel, a fuel cell system that generates power and feeds the power to said motor, and a battery that stores power generated by said fuel cell system to feed the stored power to said motor, characterized by comprising:
- a hydrogen leak sensor configured to detect whether or not there is hydrogen leaked from said fuel cell system;
- a first control section configured to control said fuel cell system and said battery, and to determine whether or not there is leakage of said hydrogen according to said hydrogen leak sensor;
- a storage unit configured to store power to be fed to said hydrogen leak sensor and said first control section;
- and
- a second control section configured to maintain supply of power from said storage unit to said hydrogen leak sensor and said first control section for a predetermined period of time on turning off an ignition switch unless leakage of said hydrogen is detected by said hydrogen leak sensor and thereafter stop the supply of power.
Dependencies are inferred from the claim text.