The invention discloses a plateau-adapted new energy vehicle vacuum pump control method. The method comprises the following steps: under the conditions that a brake pedal is loosened and a vacuum pumpis in a working state, time and a vacuum degree value are recorded, the current working state is judged, and the vacuum pump is controlled to be opened and closed; if abnormity is found, leakage judgment is carried out, and a preset vacuum degree value is alarmed or adjusted according to the judgment result; when the brake pedal is stepped down and the vacuum pump is in a working state, the current working state is judged, and the vacuum pump is controlled to open and close; and if the state of the brake pedal changes during the judgment period, the judgment step is automatically switched. The method is based on a single differential pressure sensor, and according to a specific logic control method, it is ensured that normal pumping of the vacuum pump in plain and plateau environments meets the required vacuum degree, the production cost is reduced, and popularization of new energy vehicles is facilitated.
本发明公开了一种适应高原的新能源车真空泵控制方法,包括以下步骤:在松开制动踏板且真空泵处于工作状态的情况下记录时间和真空度值判断当前工作状态并控制真空泵开闭;若发现异常则进行泄漏判断,根据判断结果告警或调整设置的真空度值;在踩下制动踏板且真空泵处于工作状态的情况下判断当前工作状态并控制真空泵开闭;若判断期间制动踏板状态变化,则自动切换判断步骤。上述方法基于单个差压传感器,并按照特定逻辑控制方法,确保真空泵在平原以及高原环境的正常抽取满足要求的真空度,降低了生产成本,有利于新能源汽车的推广。
Plateau-adapted new energy vehicle vacuum pump control method
一种适应高原的新能源车真空泵控制方法
2020-06-19
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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