The invention discloses a high-voltage interlocking system of an electric automobile, which comprises a plurality of detection chips used for detecting interlocking faults, one detection chip is integrated in each high-voltage interlocking part, fault signal codes corresponding to the high-voltage interlocking parts are stored in the detection chips, the detection chips are used for detecting the high-voltage interlocking faults, after the high-voltage interlocking fault is detected, the stored fault signal code is sent to the BMS, and the BMS identifies the high-voltage interlocking part with the corresponding fault according to the fault signal code. The method has the advantages that fault detection and fault position determination can be accurately and reliably realized, and the safety of a high-voltage system of the whole vehicle is ensured; meanwhile, the integrated detection chip is adopted to detect voltage, the principle is simple and reliable, and implementation is convenient.
本发明公开了一种电动汽车高压互锁系统,包括多个用于检测互锁故障的检测芯片,每个高压互锁部件中集成一个检测芯片,所述的检测芯片中存储与高压互锁部件相对应的故障信号代码,所述检测芯片用于检测高压互锁故障,并在检测到高压互锁故障后将其存储的故障信号代码发送至BMS中,所述BMS根据故障信号代码识别出对应的故障的高压互锁部件。本发明的优点在于:可以准确可靠的实现对于故障的检测以及故障位置的确定,保证了整车高压系统的安全;同时采用集成式的检测芯片检测电压,原理简单可靠,实现方便。
High-voltage interlocking system of electric automobile
一种电动汽车高压互锁系统
2021-07-06
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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