The invention provides a control method for a high-pressure fuel tank isolating valve of a hybrid electric vehicle, which comprises the following steps that: during refueling, after a fuel tank isolating valve controller receives a refueling request signal and an ignition switch is in an OFF gear or an ON gear, the fuel tank isolating valve controller responds to a refueling request; the oil tank isolating valve controller judges whether the internal pressure of the oil tank is larger than the upper limit value of a set safety threshold value or not according to the internal pressure of the oil tank detected by a pressure sensor arranged on the high-pressure oil tank, and if not, an oil filling port cover plate used for sealing and covering an oil filling port of the high-pressure oil tank can be opened for oil filling; if yes, the oil tank isolation valve controller controls the high-pressure oil tank isolation valve to be opened for pressure relief until the internal pressure of the oil tank is reduced to be within the set safety threshold value, then the oil filler cover plate can be opened for oil filling, and after oil filling is completed and the oil filler cover plate is closed, the oil tank isolation valve controller controls the high-pressure oil tank isolation valve to be closed. According to the invention, oil liquid can be well prevented from being sprayed out from the oil filling port during oil filling.
本发明提供了一种混合动力汽车高压油箱隔离阀的控制方法,其包括:在加油时,当油箱隔离阀控制器收到加油请求信号后,且点火开关在OFF档或ON档时,油箱隔离阀控制器响应加油请求,油箱隔离阀控制器根据设置在高压油箱上的压力传感器检测到的油箱内部压力,判断油箱内部压力是否大于设定安全阈值的上限值,若为否,则能开启用于封盖高压油箱的加油口的加油口盖板,进行加油;若为是,则油箱隔离阀控制器控制高压油箱隔离阀开启,进行泄压,直至油箱内部压力下降至设定安全阈值内,而后才能打开加油口盖板进行加油,在加油完成且关闭加油口盖板后,油箱隔离阀控制器再控制高压油箱隔离阀关闭。本发明能够较好地避免加油时油液由加油口喷出。
Control method for isolating valve of high-pressure oil tank of hybrid electric vehicle
一种混合动力汽车高压油箱隔离阀的控制方法
2024-05-28
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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