Method for controlling output power of vehicular fuel cell system
Title：
Method for controlling output power of vehicular fuel cell system
Application Number：
 200610012146
Application Date：
 2006/06/07
Announcement Date：
 2006/12/27
Pub. Date：
Publication Number：
 1883981
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B60L 11/18, H01M 8/04
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Gao Dawei, Lu Qingchun, Jin Zhenhua
Key Words：
 controll, output power, vehicular, fuel cell system
Abstract：
 Disclosed is an output power control method for a fuel cell system of a vehicle belonging to fuel cell automobile research and development technology field. A vehicle controller can compute a target torque of a motor according to a driver's intentions (such as key signal, accelerator pedal signal, brake pedal signal, gearshift signal), compute the motor power demand according to the motor rotation speed, and obtain a target output power of the fuel cell system according to the motor power demand and work state signals of the cell; then the vehicle controller can obtain a target input voltage of a DC/DC transformer according to the relationship between the fuel cell output power and output voltage, and send the instruction to the DC/DC transformer. The DC/DC transformer can perform PI closed loop control according to the target input voltage and actual output current, so as to realize direct control on the output power of the fuel cell system. The invention has high control precision, high response speed.
Claim：
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PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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