Title:
MOTOR CONTROL METHOD OF ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JP3872740
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To simplify or omit a sensor used for controlling in a motor control method of an electric vehicle, and to accurately and quickly response to operation amount of an accelerator for stable travel even if a load fluctuates.
SOLUTION: A speed deviation ε between a vehicle speed v of the electric vehicle and a speed command value (c) corresponding to the step-in amount of an accelerator pedal 32 is multiplied by a gain G to provide an intermediate variable Gε. An integrator input a1 is acquired by limiting the intermediate variable Gε within the range of a first threshold value L1 with a positive sign or second threshold value L2 with a negative sign. Integration is performed at an integrator 62 to generate a torque command value T through a torque command part 64. A current I which is based on the torque command value T is made to flow to rotate a motor 14. The gain G, first threshold value L1, and second threshold value L2 are set and changed according to conbination of positive/negative sign of the speed deviation ε and that of the torque command value T.
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Inventors:
Akutsu, Susumu
Kimura, Masayoshi
Yamaji, Takeshi
Yamagishi, Yoshihiko
Hirose, Yoshitoshi
Kimura, Masayoshi
Yamaji, Takeshi
Yamagishi, Yoshihiko
Hirose, Yoshitoshi
Application Number:
JP2002000279691
Publication Date:
October 27, 2006
Filing Date:
September 25, 2002
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
B60L15/20; B60L15/20; (IPC1-7): B60L15/20