The invention discloses a vehicle starting control method for a ramp auxiliary system. The method comprises the following steps: when a vehicle is static on a ramp, the ramp value of the vehicle is calculated, the minimum braking pressure required for keeping the vehicle static is calculated, a pressure maintaining condition is accessed if the pressure is met, the pressure maintaining pressure isselected to carry out parking pressure maintaining value on the ramp auxiliary system, a brake pedal is stepped on to make the ramp auxiliary system maintain the parking pressure maintaining value, when the brake pedal starts to reset, the ramp auxiliary system continues to maintain the pressure for a first duration according to the parking pressure maintaining value, when an accelerator is stepped down, the pressure relief slope of the ramp auxiliary system is selected according to the working condition of the vehicle, pressure relief is completed according to the selected pressure relief slope till the pressure maintaining quitting condition is met, and vehicle starting is completed. The invention further discloses the ramp auxiliary system utilizing the vehicle starting control method.The same functional effect as 12 electromagnetic valves and a main cylinder pressure sensor in the prior art can be achieved only through 10 electromagnetic valves, so the production cost of the rampauxiliary system is reduced.
本发明公开了一种用于坡道辅助系统车辆起步控制方法,包括:待车辆在坡道静止,计算车辆所处坡道值,计算出保持车辆静止所需最小制动压力,若满足进入保压条件,选择保压压力进行坡道辅助系统停车保压值,制动踏板被踩下,使坡道辅助系统维持所述停车保压值,制动踏板开始复位时起,使坡道辅助系统按所述停车保压值继续保压第一时长,油门被踩下时起,根据车辆工况选择坡道辅助系统泄压斜率,按选择的泄压斜率完泄压直至满足退出保压条件,完成车辆起步。本发明还公开了一种利用所述车辆起步控制方法的坡道辅助系统。本发明仅靠10个电磁阀即可以达到与现有技术12个电磁阀和主缸压力传感器相同的功能效果,降低了坡道辅助系统生产成本。
Vehicle starting control method and ramp auxiliary system
车辆起步控制方法及坡道辅助系统
2020-04-28
Patent
Elektronische Ressource
Chinesisch
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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