2 pin 282189-5 Nozzle Ignition Coil Water 3.5 Series Temperature Sensor Harness Plug connector 3.5 Series

The following uses the method of waking up the vehicle controller with the ignition switch to introduce the power supply and shutdown process of the vehicle, as shown in Figure 2-35. When the ignition switch is rotated to the Start position, released and then returned to the ON position, and the gear is in the N position, the vehicle starts the high-voltage power supply detection. When the vehicle controller is initialized, it will judge the vehicle mode. If the charging gun is connected to the charging port at this time, the vehicle mode will be determined as the charging mode. At this time, it will not enter the driving mode and continue the power supply logic behind , the initialization of the vehicle controller cannot be completed. When the vehicle mode is determined to be the running mode, the vehicle controller initializes and completes self-inspection; after that, the vehicle controller closes the motor controller (Moter Control Unit, MCU), low-voltage relay, air-conditioning control panel, and PTC low-voltage relay. And wake up the BMS, the new energy low-voltage power supply starts; after the new energy low-voltage power supply starts, the new energy low-voltage self-inspection is performed. During this process, the BMS and the motor controller complete the initialization and self-inspection. After completion, the self-inspection counter is set from "0" to "1" and sent to the vehicle controller; after the self-inspection is completed, the vehicle controller closes the negative relay in the power battery pack, otherwise the high-voltage power-off detection is performed; after the negative relay is closed, the BMS completes the high-voltage self-test of the power battery. The detection counter is set to "2" and sent to the vehicle controller, otherwise the vehicle controller disconnects the negative relay of the battery, each high-voltage controller detects high voltage, and outputs zero power; BMS completes precharging and closes the positive relay in the power battery to complete The battery high voltage is detected step by step. After the detection is successful, the self-inspection counter is set to "3" and sent to the vehicle controller, otherwise the BMS disconnects the battery positive relay, and the self-inspection counter is set to "2" and sent to the vehicle controller; pre-charging is completed Afterwards, high-voltage detection is performed on the MCU, air-conditioning controller (ECC), air-conditioning panel system (HVAC) and air-conditioning electric heater (PTC). Judge the high-voltage fault, otherwise disconnect the positive relay of the power battery. After the high-voltage detection passes, the vehicle is powered on and is in the state of waiting for driving, and the green Ready indicator light is on.

When the system detects that the total high-voltage current is less than 5A and lasts for more than 600ms, the vehicle control system performs a power-off process, the BMS disconnects the battery positive relay, and the self-inspection counter is set to "2" and sent to the vehicle controller. High voltage, no fault judgment, zero power output; after the positive relay is disconnected, the BMS will detect the adhesion of the positive relay, and each high-voltage electrical appliance will output zero power, and discharge the high-voltage circuit. When the motor controller detects that the voltage of the high-voltage circuit is lower than 36V, it will be discharged Complete the flag bit and send it to the vehicle controller, the vehicle controller disconnects the battery negative relay, each high-voltage controller detects high voltage, and outputs zero power; BMS performs high-voltage power-down detection, and the BMS self-test counter is set to "1" after completion. To the vehicle controller; when the parts are archived, the BMS and each high-voltage electrical appliance write EEPROM (electrically erasable read-only memory), the BMS self-test counter is set to "0" and sent to the vehicle controller, and the motor controller writes the EEPROM to complete Flag position; when the archive is completed, the vehicle controller sequentially powers off the new energy system for BMS, MCU, HVAC, and PTC, and the cooling system is powered off after a delay; the vehicle controller writes EE-PROM, and the vehicle controller powers off , so that the whole vehicle is powered off.

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