Rear wheel steering control method and rear wheel steering control system

Abstract

The invention provides a rear wheel steering control method and a rear wheel steering control system. The rear wheel steering control method includes: obtaining the vehicle state signal input by the steering wheel; making the target angle generation controller output a target angle command containing the rear wheel steering target angle according to the vehicle state signal; sending the target angle command to the actuator angle position The controller performs the first verification before, wherein the result of the first verification is used to indicate whether to send the target angle command to the actuator angle position controller; when the first verification result is yes, the second verification is performed, and the result of the second verification It is used to indicate whether the actuator angular position controller converts the calculation of the target angle command into a torque demand command or a speed demand command; when the second verification result is yes, the actuator angular position controller sends the torque demand command or speed demand command to to the motor controller. The solution of the present invention can reduce unnecessary rear wheel steering intervention in certain scenarios.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, and more particularly to a rear wheel steering control method and a rear wheel steering control system. Background technique [0002] With the development of the automotive industry, the chassis configuration of the active rear wheel steering function is gradually the development trend of the automotive industry. The rear wheel steering function can effectively improve the agility of the car and the stability of the high-speed driving, and the vehicle manipulation performance Very big improvement. [0003] However, the active control system will inevitably generate a certain system energy consumption. With the gradual improvement of environmental protection and emission requirements, and the gradual deepening of motorization of automobile industry, energy consumption and energy management issues are worth particular, according to the rear wheel steering function. Control logic and actuator fe...

AI Technical Summary

Problems solved by technology

[0003] However, the active control system will inevitably generate a certain amount of system energy consumption. With the gradual improvement of environmental protection and emission requirements, and the gradual deepening of the electrification of the automobile industry, energy consumption and energy management issues deserve special attention. The control logic and actuator characteristics optimize the energy consumption of the system, and the energy consumption that does not produce benefits should be eliminated as much as possible

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