The invention provides a hybrid electric vehicle storage battery electricity shortage compensation control method which can detect the reason of electricity shortage of a storage battery and start the storage battery electricity supplement function of a power battery when the storage battery is in electricity shortage so as to ensure that the electric quantity of the storage battery can be supplied to each controller of the whole vehicle, and meanwhile, the electric quantity of the power battery is consumed as little as possible. Therefore, normal use of the vehicle is guaranteed, and vehicle use experience of users is improved. The method comprises the steps that after a user actively powers off a whole vehicle, a whole vehicle CAN network is awakened once every interval time, the whole vehicle CAN network detects the remaining SOC of a storage battery, and the current consumed by the storage battery in the interval time before the whole vehicle CAN network is awakened last time is determined; and when the current consumed by the storage battery in the interval duration before the previous wake-up of the whole vehicle CAN network meets a preset power consumption condition and the residual SOC of the storage battery meets a preset charging condition, controlling a high-voltage loop of the whole vehicle to be electrified, so that a power battery of the whole vehicle charges the storage battery.
本发明提供了一种混合动力汽车蓄电池亏电补偿控制方法,能够检测蓄电池亏电的原因并且在蓄电池亏电时开启动力电池的蓄电池补电功能,保证蓄电池的电量能够供给整车的各控制器使用,同时尽可能少消耗动力电池电量,从而保证车辆正常使用,提升用户的用车体验。该方法包括:用户对整车主动下电后,每经过一间隔时长即唤醒一次整车CAN网络,使整车CAN网络对蓄电池的剩余SOC进行检测,并确定整车CAN网络在前一次唤醒前的间隔时长内的蓄电池消耗电流;在整车CAN网络在前一次唤醒前的间隔时长内的蓄电池消耗电流满足预设耗电条件且蓄电池的剩余SOC满足预设充电条件时,控制整车高压回路上电,使整车动力电池为蓄电池充电。
Power shortage compensation control method for storage battery of hybrid electric vehicle
一种混合动力汽车蓄电池亏电补偿控制方法
2023-07-21
Patent
Electronic Resource
Chinese
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