The invention provides a control method of an electric power-assisted braking system and the electric power-assisted braking system.The control method of the electric power-assisted braking system comprises the steps that after a vehicle is started, a controller obtains the whole vehicle voltage and the vehicle speed of the vehicle in real time; the controller judges whether the electric booster is in a low-voltage state or not according to the current vehicle voltage and a first preset voltage threshold value; and if the electric booster is in the low-voltage state, the controller controls the working state of the electric booster according to the magnitude of the current whole vehicle voltage and a second preset voltage threshold value and/or the magnitude of the current vehicle speed and a preset speed threshold value. According to the magnitude of the voltage of the whole vehicle and the magnitude of the vehicle speed when the electric booster is in the low-voltage state, the electric booster provides necessary braking assistance for the vehicle under the condition that the voltage of the whole vehicle is not very low, and the safety performance of an electric power-assisted braking system can be guaranteed to a certain extent.
本申请提供一种电动助力制动系统的控制方法及电动助力制动系统,该电动助力制动系统的控制方法包括:车辆启动后,控制器实时获取车辆的整车电压和车速;控制器根据当前整车电压与第一预设电压阈值的大小判断电动助力器是否处于低电压状态;如果电动助力器处于低电压状态,则控制器根据当前整车电压与第二预设电压阈值的大小,和/或,当前车速与预设速度阈值的大小,控制电动助力器的工作状态。根据电动助力器处于低电压状态时整车电压的大小以及车速的大小,使得电动助力器在整车电压不是特别低的情况下为车辆提供必要的制动助力,能够一定程度上保证电动助力制动系统的安全性能。
Control method of electric power-assisted braking system and electric power-assisted braking system
一种电动助力制动系统的控制方法及电动助力制动系统
2024-02-09
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Control valve, braking system, vehicle, electric vehicle and electric power-assisted vehicle
European Patent Office | 2022