The invention discloses an electric vacuum pump control method of an electric manual transmission automobile. The method comprises the following steps: S1, acquiring vehicle information; S2, calculating a vacuum pump opening threshold value Pon and a vacuum pump closing threshold value Poff according to the vehicle information; and S3, according to the vehicle information, the vacuum pump openingthreshold value Pon and the vacuum pump closing threshold value Poff, controlling the vacuum pump to be opened and closed. Uncorrected vacuum pump opening and closing coefficient threshold values arecalculated according to vehicle speed information; correction coefficient threshold values of opening and closing of the vacuum pump are calculated according to the gear signals; opening and closing thresholds of the vacuum pump are calculated according to the maximum relative vacuum pressure value of the vacuum pump; and finally, the current vacuum degree of the vacuum tank is compared with the calculated vacuum pump opening and closing threshold values according to the on-off state of the relay, and opening or closing of the vacuum pump is confirmed, so that the requirement of braking for the vacuum degree is reasonably considered according to different current vehicle speeds and gears of vehicles. Meanwhile, the energy-saving effect is improved, and the service life of the vacuum pump is prolonged. The method is suitable for a vehicle.
本发明公开了一种电动手动挡汽车的电动真空泵控制方法,包括以下步骤,S1:获取车辆信息;S2:根据车辆信息计算真空泵开启阈值Pon和真空泵关闭阈值Poff;S3:根据车辆信息以及真空泵开启阈值Pon和真空泵关闭阈值Poff,控制真空泵的开启和关闭。先根据车速信息计算未修正的真空泵开启和关闭系数阈值,然后根据档位信号计算真空泵开启和关闭的修正系数阈值,再根据真空泵的最大相对真空压力值计算真空泵开启和关闭阈值,最后根据继电器的通断状态比较当前真空罐的真空度与计算的真空泵开启和关闭阈值,确认开启或关闭真空泵,这样根据车辆当前车速和档位的不同,合理地考虑了制动对真空度的需求,同时提高了节能效果,提升了真空泵使用寿命。适用于汽车。
Electric vacuum pump control method of electric manual transmission automobile
一种电动手动挡汽车的电动真空泵控制方法
2020-10-20
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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