The invention discloses a multi-stage closed-loop cascade control method for an electronic mechanical braking system, relates to the technical field of electronic mechanical braking systems, and solves the technical problem that the electronic mechanical braking system cannot control the clamping force of wheels quickly and accurately. According to the technical scheme, the method is characterized in that a current braking mode is judged through a mode judgment module based on information such as target clamping force, actual clamping force and a clamping force threshold value, reference currents in different braking modes are obtained, and then the electronic mechanical braking system is controlled in combination with the reference currents and a current loop controller. A complete closed-loop control strategy is provided for the electronic mechanical braking system, rapid and accurate following of a controlled quantity to a target value is achieved, the problems of friction hindrance, nonlinear characteristics and the like of the electronic mechanical braking system are effectively solved, high-precision servo position, speed and clamping force control is achieved, a foundation is laid for the active braking function of the electronic mechanical braking system, and the application prospect is wide. And the intelligent and electric requirements of the automobile are effectively met.
本发明公开了一种电子机械制动系统多阶段闭环级联控制方法,涉及电子机械制动系统技术领域,解决了电子机械制动系统对车轮夹紧力的控制不够快速精准的技术问题,其技术方案要点是通过基于目标夹紧力、实际夹紧力及夹紧力阈值等信息的模式判断模块,对当前所处的制动模式进行判断,获取不同制动模式下的参考电流,再结合参考电流和电流环控制器对电子机械制动系统进行控制。为电子机械制动系统提供了完整的闭环控制策略,实现控制量对目标值快速准确的跟随,有效克服电子机械制动系统摩擦阻碍和非线性特性等问题,实现高精度的伺服位置、速度和夹紧力控制,为电子机械制动系统主动制动功能奠定基础,有效匹配汽车智能化、电动化的需求。
Multi-stage closed-loop cascade control method for electronic mechanical braking system
一种电子机械制动系统多阶段闭环级联控制方法
07.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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