The invention discloses a high-voltage collision protection method and system for an electric automobile, the high-voltage collision protection method and system are applied to a high-voltage power driving device, the high-voltage power driving device comprises a power battery pack, a motor controller, an A/C compressor and an all-in-one vehicle-mounted power source, and the high-voltage power driving device is connected with a storage battery, an automobile frame and an auxiliary automobile frame. The method comprises the steps that after a whole vehicle is powered on to trigger a storage battery to wake up a high-voltage power driving system, the collision strength of the electric vehicle is obtained in real time; if the collision strength of the electric automobile is larger than or equal to the preset high-pressure collision leakage strength, the electric automobile is in a high-pressure collision leakage working condition, and under the high-pressure collision leakage working condition, high pressure leaked by the power battery pack, the motor controller, the A/C compressor and the all-in-one vehicle-mounted power source flows back to a negative electrode of the storage battery, and the storage battery is in a high-pressure collision leakage state. And high-voltage power supply is cut off through the power battery pack. The method can solve the problem that in the prior art, the collision safety performance of the electric automobile in the high-voltage state is insufficient.
本申请公开了一种电动汽车高压碰撞保护方法及系统,应用于高压动力驱动装置,所述高压动力驱动装置包括动力电池包、电机控制器、A/C压缩机和多合一车载电源,所述高压动力驱动装置分别与蓄电池、车架和副车架连接,该方法包括:整车上电触发蓄电池唤醒高压动力驱动系统后,实时获取电动汽车碰撞强度;若电动汽车碰撞强度大于或等于预设高压碰撞泄露强度,则电动汽车处于高压碰撞泄露工况,在所述高压碰撞泄露工况下,所述动力电池包、所述电机控制器、所述A/C压缩机和所述多合一车载电源泄露的高压流回所述蓄电池的负极,通过所述动力电池包断开高压供电。本方法能够解决现有技术中电动汽车在高压状态下碰撞安全性能不足的问题。
High-voltage collision protection method and system for electric automobile
一种电动汽车高压碰撞保护方法及系统
2024-06-14
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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