The invention provides a control method of an electronic vacuum pump, an auxiliary power assisting system and a new energy automobile. The method includes: when it is determined that the initial vacuum degree of a power assisting vacuum pump is smaller than an opening threshold value of the electronic vacuum pump, switching on the electronic vacuum pump; controlling the electronic vacuum pump to work for a preset time period, and acquiring a pressure drop gradient of the booster vacuum pump in the preset time period; and when the pressure descending gradient is within the threshold range, switching off the electronic vacuum pump. Therefore, the pressure drop gradient of the booster vacuum pump within the preset time period is within the threshold range as a basis for closing the electronic vacuum pump, instead of an existing basis for closing the electronic vacuum pump when the vacuum degree of the booster vacuum pump is greater than the closing threshold value of the electronic vacuum pump; thus, the situation that the electronic vacuum pump is burnt out in a long-term working state when the electronic vacuum pump enters a plateau area or breaks down is avoided.
本发明提供一种电子真空泵的控制方法、辅助助力系统及新能源汽车,确定助力真空泵的初始真空度小于电子真空泵的开启阀值时,启动电子真空泵;控制电子真空泵工作预设时间段,获取预设时间段助力真空泵的压力下降梯度;压力下降梯度处于阈值范围内时,关闭电子真空泵。这样,通过预设时间段内助力真空泵的压力下降梯度处于阈值范围内作为关闭电子真空泵的依据,代替现有的通过助力真空泵的真空度大于电子真空泵的关闭阀值作为关闭电子真空泵的依据,避免电子真空泵进入高原地区或发生故障时电子真空泵处于长期工作状态被烧毁情况的发生。
Control method of electronic vacuum pump, auxiliary power assisting system and new energy automobile
一种电子真空泵的控制方法、辅助助力系统及新能源汽车
2021-12-10
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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