The invention provides a high-voltage interlocking detection circuit, a disconnection position detection method and a control unit, and relates to the technical field of high-voltage interlocking circuits. The circuit comprises at least one control system and a plurality of high-voltage connectors corresponding to each control system, the two detection ends of a control unit in each control systemare electrically connected with the two ends of a detection resistor in each control system respectively, a high-voltage interlocking input port is electrically connected with one end of the detection resistor, and the other end of the detection resistor is grounded; a resistor with a corresponding resistance value of each high-voltage connector is connected in parallel between the input interface and the output interface of each high-voltage connector; and the resistance values corresponding to different high-voltage connectors are different. Compared with the prior art, the problem that theinterlocking disconnection position can only be manually detected, and consequently the troubleshooting efficiency is not high is solved.
本申请提供一种高压互锁检测电路、断开位置的检测方法及控制单元,涉及高压互锁电路技术领域。该电路包括:至少一个控制系统、以及每个控制系统对应的多个高压连接器;每个控制系统中的控制单元的两个检测端分别电连接每个控制系统中的检测电阻的两端,高压互锁输入口电连接检测电阻的一端,检测电阻的另一端接地;每个高压连接器的输入接口和输出接口之间并联每个高压连接器对应阻值的电阻;不同高压连接器对应的阻值不同。相对于现有技术,避免了互锁断开位置只能通过人工检测,造成故障排除效率不高的问题。
High-voltage interlocking detection circuit, disconnection position detection method and control unit
高压互锁检测电路、断开位置的检测方法及控制单元
2021-03-02
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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