The invention discloses a new energy vehicle power assembly collision power-off control method and a vehicle, after a vehicle collides, a plurality of collision signals associated with collision are sent to a domain controller ACU through a plurality of channels, and the domain controller ACU forwards the plurality of collision signals to a BMS; and the BMS judges the reliability of the received collision signals and determines whether the whole vehicle is collided or not, and after the collision of the whole vehicle is judged, a collision triggering instruction is generated and sent to the BMS to execute high-voltage power-off so as to realize the power-off of the power battery. The method has the advantages that the BMS performs comprehensive analysis according to the received collision signals sent by the multiple signal channels of the ACU to obtain a very reliable collision diagnosis result, so that the BMS can generate accurate collision according to the reliable diagnosis result, and then collision triggering is generated to enable the relay to execute an immediate power-off instruction; therefore, the whole vehicle power battery with the function is powered off, and the safety of the whole vehicle under the collision condition is well guaranteed.
本发明公开了一种新能源汽车动力总成碰撞断电控制方法及汽车,在车辆发生碰撞后通过多个通道发出多个与碰撞相关联的碰撞信号至域控制器ACU,域控制器ACU将多个碰撞信号转发至BMS;BMS对接收到的多个碰撞信号进行可靠性判断并确定整车是否发生碰撞,在判断整车碰撞后生成碰撞触发指令至BMS执行高压下电以实现动力电池的断电。本发明的优点在于:根据接收到ACU的多个信号通道分别发出的碰撞信号BMS进行综合分析后能够得到非常可靠的碰撞诊断结果,进而依据可靠的诊断结果BMS能够生成准确的碰撞则生成碰撞触发使继电器执行立即下电指令,以使所述功能的整车动力电池进行断电,很好的保障了整车碰撞情况下的安全。
New energy automobile power assembly collision power-off control method and automobile
一种新能源汽车动力总成碰撞断电控制方法及汽车
2024-11-29
Patent
Electronic Resource
Chinese
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