汽车电源管理系统浅析

Analysis of Automobile Power Management System

汽车电源管理系统负责对整车的电源系统状态进行监控,并对蓄电池、发电机的供电和负载在不同工况下的工作进行管理。当整车负载较大时,控制发电机输出功率增大,当发电机功能输出超出负载的需求及蓄电池的充电需求时,控制减少发电机的功率输出。当发电机不工作时,蓄电池电压降低到一定值,限制或禁止某些较大负载的功能,从而降低进一步的电流消耗,保证蓄电池下一次的起动性能。汽车电源管理系统的目的主要是为保证整车静态存放时间,防止蓄电池出现过充或过放,从而延长蓄电池使用寿命,提升车辆的起动性能。

The automobile power management system is responsible for monitoring the power system status of the whole vehicle, and managing the power supply and load of battery and generator under different working conditions.When the load of the whole vehicle is large, the system controls the generator to increase output. When the functional output of the generator exceeds the load demand and the charging demand of the battery, the system reduces the power output of the generator.When the generator is not working, the battery voltage will be reduced to a certain value, which will limit or prohibit the function of some large loads, so as to reduce further current consumption and ensure the next starting performance of the battery.The purpose of the automobile power management system is to ensure the static storage time of the whole vehicle and prevent the battery from overcharging or over discharging, so as to extend the service life of the battery and improve the starting performance of the vehicle.