The invention relates to the field of electric vehicle vacuum system control, in particular to a plateau control method for a vacuum system of a new energy electric vehicle. According to the plateau control method for the vacuum system of the new energy electric vehicle, in the steps S1 and S2, the vacuum system is controlled according to whether the value of the pressure difference P between a vacuum tank and the outside is within the range of B < P < A; and when the altitude is relatively high, S1 and S2 cannot meet the control requirements, the steps S3 and S4 are carried out. The value of P is compared with the values of A and B, whether the vacuum degree of the vacuum system can meet the normal requirement is determined, the vacuum pump is continuously stopped three times according to the setting that the whole vehicle is in the plateau state, and the corresponding steps S3 and S4 are executed, so that the vacuum system can exert the pumping performance of the vacuum pump to the maximum extent in the plateau (the altitude is higher than 1000 m) area, the vacuum degree is improved, and finally the effect of improving the touch feeling of the brake pedal is achieved.
本发明涉及电动车真空系统控制领域,具体是涉及一种新能源电动车真空系统高原控制方法。所述新能源电动车真空系统高原控制方法,在步骤S1、S2根据真空罐的与外界的压力差P的值是否在B<P<A的范围内,对真空系统进行控制;当海拔高度较高的时候,S1和S2无法满足控制需求,进行步骤S3和S4。本申请通过将P的值与A、B的值进行对比,确定真空系统的真空度是否可以满足正常需求,通过真空泵连续停止三次视整车处于高原状态的设置,并执行相应的步骤S3和S4,使得真空系统在高原(海拔高于1000m)地区,能最大限度发挥真空泵抽气性能,提高真空度,最终达到改善制动踏板触感的作用。
Plateau control method for vacuum system of new energy electric vehicle
一种新能源电动车真空系统高原控制方法
2021-12-03
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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