The invention discloses a drive-by-wire chassis longitudinal control method of an electric vehicle, and belongs to the technical field of automatic driving vehicles. A drive-by-wire chassis longitudinal control method of an electric vehicle comprises vehicle speed reducer and parking control and parking braking control, and the vehicle speed reduction control process comprises the following steps that an unmanned controller sends an expected vehicle speed to a whole vehicle controller; the vehicle control unit recognizes the current actual vehicle speed; the vehicle control unit analyzes and compares the actual vehicle speed with the expected vehicle speed; the whole vehicle controller controls the vehicle to accelerate, decelerate and brake to stop; the parking control comprises slope parking control and slope slipping prevention control. According to the method, the energy utilization rate in the vehicle deceleration process is improved; the vehicle can be parked more safely on the ramp road section; braking and parking braking are combined, so that the parking safety redundancy of the vehicle is improved; in the unmanned driving mode or the manned driving mode, the logic gear of the vehicle, the instrument display gear and the gear shifting knob display gear are kept consistent.
本发明公开了一种电动车辆的线控底盘纵向控制方法,属于自动驾驶车辆技术领域。一种电动车辆的线控底盘纵向控制方法,包括车辆减速机及停车控制和驻车制动控制,所述车辆减速控制流程如下:无人驾驶控制器向整车控制器发送期望车速;整车控制器识别当前实际车速;整车控制器分析对比实际车速和期望车速;整车控制器控制车辆加速、减速及制动停车;所述停车控制包括:驻坡控制和防溜坡控制,本发明让车辆减速过程中的能量利用率得以提升;让车辆在坡道路段停车更加安全;让刹车制动与驻车制动相结合,提升车辆驻车安全冗余;无人驾驶模式或有人驾驶模式下,车辆的逻辑挡位、与仪表显示挡位、及换挡旋钮显示挡位三者保持一致。
Longitudinal control method for drive-by-wire chassis of electric vehicle
一种电动车辆的线控底盘纵向控制方法
2024-11-08
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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