The invention discloses a power shortage prevention system for an electric vehicle and the vehicle, and the system comprises a storage battery which is connected with a low-voltage electric accessoryof the electric vehicle; a power battery which is connected with a driving motor of the electric vehicle, and the power battery is connected with the storage battery through a DCDC; an electric quantity sensor which is arranged on the storage battery and used for detecting the electric quantity of the storage battery; and a control structure which is connected with the electric quantity sensor andthe power battery, the control structure controls the power battery to charge the storage battery when the power supply gear is in the OFF gear and the electric quantity sensor feeds back a low electric quantity signal, and controls the power battery to stop charging the storage battery when the electric quantity sensor feeds back a high electric quantity signal. According to the power shortage prevention system for the electric vehicle, it can be guaranteed that the storage battery is always in a charging electric quantity state, so that the storage battery always has the capacity of starting the whole vehicle, and the risk of power shortage of the storage battery is reduced.
本申请公开了一种用于电动车辆的防亏电系统和车辆,所述防亏电系统包括:蓄电池,所述蓄电池与所述电动车辆的低压用电附件相连;动力电池,所述动力电池与所述电动车辆的驱动电机相连,且所述动力电池与所述蓄电池之间通过DCDC相连;电量传感器,电量传感器设置于蓄电池且用于检测蓄电池的电量;控制结构,控制结构分别与电量传感器、动力电池相连,控制结构在电源挡位处于OFF挡位且在电量传感器反馈低电量信号时控制动力电池向蓄电池充电、而在电量传感器反馈高电量信号时控制动力电池停止向蓄电池充电。本申请的用于电动车辆的防亏电系统,可保证蓄电池始终处于充电的电量状态,以使蓄电池始终有对整车启动的能力,降低蓄电池亏电的风险。
Power shortage prevention system for electric vehicle and vehicle
用于电动车辆的防亏电系统和车辆
2021-03-26
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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