The invention relates to a vehicle ejection starting control method and system, and the method comprises the steps: enabling an ejection starting mode after receiving an ejection starting request; after the automatic parking function is activated, the driving torque of the vehicle is obtained according to an opening signal of an accelerator pedal, braking force adaptive to the driving torque is applied through an automatic parking unit, and the vehicle is kept in a parking state; and in response to the situation that the current state of the vehicle meets a preset condition, the braking pressure of the vehicle is released, and the preset condition is that the opening degree of an accelerator pedal exceeds a set opening degree threshold value and a driver braking request is not received. According to the invention, the dependence of a driver on a brake pedal is reduced, the ejection starting process is simplified, and the phenomenon of wheel slipping caused by insufficient braking force input by the driver is avoided. And meanwhile, the braking force and the pressure maintaining time which can be calibrated are beneficial to optimizing the ejection starting function of a main engine plant, and the maximum ejection effect is achieved on the premise that the service life of key modules such as a power unit and a gearbox is guaranteed.
本发明涉及一种车辆弹射起步的控制方法及系统,接收弹射起步的请求后,使能弹射起步模式;响应于自动驻车功能已激活后,根据油门踏板的开度信号获得车辆的驱动扭矩,通过自动驻车单元施加与驱动扭矩相适应的制动力,保持车辆处于驻车状态;响应于车辆的当前状态满足预设条件,释放车辆的制动压力,所述预设条件为油门踏板的开度超过设定的开度阈值且未接收到驾驶员制动请求。本发明减少驾驶员对制动踏板的依赖,简化了弹射起步的过程,避免由于驾驶员输入的制动力不足导致车轮打滑的现象。同时可标定的制动力和保压时间有利于主机厂实现对弹射起步功能的优化,在保证动力单元,变速箱等关键模块使用寿命的前提下实现最大弹射效果。
Vehicle ejection starting control method and system
一种车辆弹射起步的控制方法及系统
2023-09-08
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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