The invention discloses a control method of a high-voltage architecture new energy automobile system machine. The system comprises a main negative relay, a shunt, a Pyrofuse, a fuse, a Hall element, a main positive relay, a motor electric control pre-charging relay, a motor electric control pre-charging resistor, a battery module, a BMS, a module pre-charging relay, a module pre-charging resistor, a series relay, a parallel relay, a high-voltage load, a fast-charging positive electrode relay and a fast-charging negative electrode relay, the module pre-charging resistor preferentially selects a small-internal-resistance high-power type pre-charging resistor, so that the voltage at the two ends of the relay is ensured to be charged and discharged to equal numerical values. According to the electric vehicle charging framework compatible with two charging and discharging voltages of 400V and 800V by changing the series-parallel connection relation of the battery modules and the control method of the electric vehicle charging framework, the problem that electric devices are damaged or the service life of battery cells is influenced due to overlarge voltage difference and overlarge charging and discharging current when the battery packs are connected in parallel is solved; and meanwhile, the influence on the whole vehicle load during charging of different voltage platform charging piles is solved.

    本发明公开了一种高压架构新能源汽车系统机控制方法,系统包括:主负继电器、分流器、Pyrofuse、熔断器、霍尔、主正继电器、电机电控预充继电器、电机电控预充电阻、电池模组、BMS、模组预充继电器、模组预充电阻、串联继电器、并联继电器、高压负载、快充正极继电器、快充负极继电器,电池模组包括M1,M2,M3...MN,模组模组预充电阻优先选择小内阻大功率型号预充电阻,保证继电器二端电压各充放至平等数值。本发明改变电池模组的串并联关系来支持兼容400V和800V两种充电及放电电压的电动车充电架构及其控制方法,解决电池组并联时因压差过大,充放电电流过大造成电器件损坏或影响电芯寿命的问题,同时解决不同电压平台充电桩充电时对整车负载的影响。


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    Title :

    High-voltage architecture new energy automobile system and control method


    Additional title:

    一种高压架构新能源汽车系统及控制方法


    Contributors:

    Publication date :

    2023-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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