The invention discloses a control method and device of an electric power-assisted brake system and a vehicle. The control method of the electric power-assisted brake system comprises the steps that abrake pedal opening signal is obtained; determining a target rack position of the rack according to the brake pedal opening signal; acquiring the pressure of the brake fluid on the piston in real time, and determining the motor required torque of the motor according to the target rack position and the pressure; when the state of the anti-lock braking system is an activated state, obtaining a preset limiting torque of a motor corresponding to the anti-lock braking system; the motor is controlled to drive the rack to move in the main cylinder with the smaller torque in the motor required torqueand the preset limiting torque; when the anti-lock braking system is activated, the motor outputs limited braking torque, it is guaranteed that the pressure borne by the whole vehicle basic braking system is maintained within a certain range, the whole vehicle basic braking system and auxiliary components are protected against damage, and then the service life of the electric power-assisted braking system is prolonged.
本发明公开了一种电动助力刹车系统的控制方法、装置和车辆,电动助力刹车系统的控制方法包括:获取制动踏板开度信号;根据制动踏板开度信号确定齿条的目标齿条位置;实时获取制动液对活塞的压力,根据目标齿条位置和压力确定电机的电机需求力矩;在防抱死系统的状态为激活状态时,获取防抱死系统对应的电机的预设限制力矩;以电机需求力矩和预设限制力矩中较小的力矩控制电机驱动齿条在主缸内移动;以实现在防抱死系统激活时,电机输出受限的制动力矩,保证整车基础制动系统承受的压力维持在一定范围内,保护整车基础制动系统及辅助部件不受伤害,进而延长电动助力刹车系统的寿命。
Control method and device of electric power-assisted brake system and vehicle
一种电动助力刹车系统的控制方法、装置和车辆
2020-04-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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