The embodiment of the invention provides a method for rapidly detecting insulation resistance, and belongs to the technical field of resistance detection. The method for rapidly detecting the insulation resistance comprises the following steps: controlling a switch of the whole vehicle insulation circuit to be switched on or switched off, and collecting voltage to ground of a negative bus of the whole vehicle insulation circuit in a corresponding state; and obtaining the resistance value of the insulation resistor of the whole vehicle insulation circuit according to the voltage to ground of the cathode bus when the switch is switched off and switched on. According to the method, the insulation resistance can be simply and rapidly detected, and the method is not influenced by overlarge capacitance in a whole vehicle insulation circuit.
本发明实施例提供一种快速检测绝缘电阻的方法,属于电阻检测技术领域。所述快速检测绝缘电阻的方法包括:控制所述整车绝缘电路的开关闭合或断开,并采集对应状态的所述整车绝缘电路的负极母线的对地电压;根据开关断开和闭合时的负极母线的对地电压获取所述整车绝缘电路的绝缘电阻的阻值。该方法可以简单快速的检测绝缘电阻,不受整车绝缘电路中的电容过大的影响。
Method for rapidly detecting insulation resistance
一种快速检测绝缘电阻的方法
2024-07-02
Patent
Electronic Resource
Chinese
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