The invention relates to a power supply control method and system for a storage battery after power-off of a whole vehicle, and relates to the technical field of automobile control, and the power supply control method comprises the steps: electric appliances are classified, and the electric appliance which still needs to be in a constant power state after power-off dormancy of the whole vehicle is defined as a first electric appliance according to the demand function characteristics of the electric appliances, an electric appliance which does not need to be in a constant power state after the whole vehicle is powered off and dormant and has dark current is defined as a second electric appliance; the first electric appliance is connected to a storage battery power supply, the second electric appliance is connected to the storage battery power supply through a control switch, and the control switch is connected to a power supply management controller; if the power management controller is awakened, the power management controller controls the control switch to be closed; and if an automobile ignition lock is in an OFF gear, whether the timing time of the power management controller exceeds the preset time or not is judged, if yes, the power management controller controls the control switch to be switched off, and if not, the control switch is controlled to be switched on. According to the invention, rapid power shortage of the storage battery power supply can be effectively relieved.
本申请涉及一种蓄电池在整车下电后的电源控制方法和系统,涉及汽车控制技术领域,电源控制方法包括步骤:对用电器进行分类,根据用电器的需求功能特征,将整车下电休眠后仍需要处于常电状态下的用电器定义为第一用电器,将整车下电休眠后不需要处于常电状态、且具有暗电流的用电器定义为第二用电器;将第一用电器连接于蓄电池电源,将第二用电器通过一个控制开关连接于蓄电池电源,将控制开关连于电源管理控制器;若电源管理控制器唤醒,电源管理控制器控制控制开关闭合;若汽车点火锁处于OFF档,则判断电源管理控制器的计时时间是否超过预设时间,若是,则电源管理控制器控制控制开关断开,否则控制控制开关闭合。本申请既能够有效缓解蓄电池电源的快速亏电。
Power supply control method and system for storage battery after power-off of whole vehicle
一种蓄电池在整车下电后的电源控制方法和系统
2021-06-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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