New energy automobile high-voltage loop pre-charging system cyclic endurance test device

The invention discloses a new energy automobile high-voltage loop pre-charging system cyclic endurance test device which comprises a pre-charging module, a discharging module, a constant-temperature box, a sensor module and a controller module, the pre-charging module comprises a pre-charging loop relay, a pre-charging resistor and a capacitor and is used for simulating a high-voltage loop of thewhole vehicle; the discharging module comprises a discharging loop relay and a discharging resistor and is used for discharging the capacitor which is powered on each time; a pre-charging resistor isarranged in the constant-temperature box; the sensor module comprises a current sensor, a voltage sampling device, a resistance sampling device and a temperature sampling device, and is used for collecting current information, voltage information, resistance information and temperature information of the pre-charging module and the discharging module and sending the information to the controller module; the controller modu