The invention discloses an automobile electric power steering friction compensation control method. The method comprises the steps that an electric power steering controller calculates the friction compensation torque according to a motor angular velocity signal, the friction compensation torque serves as one part of the electric power steering assistant torque, and joint compensation of kinetic friction torque and static friction torque of an electric power steering system is achieved; when an electric power steering assist gain changes, friction compensation control of a constant amplitude enables a driver to feel that the steering system friction changes, and a road feeling blur of subjective evaluation is caused. The friction compensation control method based on the electric power steering assist gain is proved, it is guaranteed that under different assist gains, the driver can obtain almost the same friction feeling, and the influence of the electric power steering assist gain on the system friction torque is eliminated.
Automobile electric power steering friction compensation control method
2016-02-03
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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