The invention provides a control method and system for a hybrid power vehicle, and belongs to the field of hybrid power vehicle control. The method comprises the steps that the pressure, the oil leveland the total mileage of the high-pressure oil rail are collected; when the engine is in a starting dragging state, if the pressure of the high-pressure oil rail is not larger than the first oil railpressure calibration value, the oil level is not higher than the first oil level calibration value and the total mileage is not smaller than the mileage calibration value, it is judged that the vehicle is in a pre-judged oil-free state; if the number of times that the vehicle is in the pre-judged oil-free state is not smaller than a first preset value or the engine cannot be successfully startedafter the vehicle is in the pre-judged oil-free state, it is judged that the vehicle is in the determined oil-free state; and when it is judged that the vehicle is in the oil-free state, a control signal for forbidding starting of the engine or the oil pump is sent to forbid starting of the engine or the oil pump. According to the control method and system, the problem of oil pump burning during oil-free starting can be solved.
本发明提供了一种用于混合动力车辆的控制方法及系统,属于混合动力车辆控制领域。该方法包括:采集高压油轨的压力、油位和总里程数;在发动机处于起动拖动状态时,若同时满足高压油轨的压力不大于第一油轨压力标定值、油位不高于第一油位标定值且总里程数不小于里程标定值则判定车辆处于预判无油状态;若车辆处于预判无油状态的次数不小于第一预设值或在车辆处于预判无油状态后发动机无法成功起动,则判定车辆处于确定无油状态;在判定车辆处于确定无油状态时,发送禁止发动机或油泵启动的控制信号,以禁止发动机或油泵启动。本发明的控制方法及系统,能够解决无油启动时的油泵烧灼问题。
Control method and system for hybrid power vehicle
一种用于混合动力车辆的控制方法及系统
2020-06-30
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / 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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