System Operation: Gauges

HV Battery State of Charge Gauge 

The battery charge gauge is an analog type gauge. The IPC sends a reference voltage to the PCM. Battery Charge gauge replaces the fuel gauge and is a indication of the battery State Of Charge (SOC). When a low SOC is reached the Battery lamp will turn amber and a POP-UP warning displayed on the HMI screen. The IPC monitors the change in voltage from the sender and commands the fuel gauge with a corresponding movement of the gauge pointer.

Power Gauge 

The power gauge is an analog type gauge. The IPC receives the engine power message from the GWM over the HS-CAN3. The GWM receives the engine power message from the PCM over the HS-CAN1.

Power Availability Gauge 

The power availability gauge is an analog type gauge. This displays the available power to the e-motor. Normal operation is within the white area of the gauge. When near the red zone there is limited torque / acceleration available. The portion within the red zone identifies a failure. Possible causes: Motor and Battery temperature, high battery usage, low battery charge.

Speedometer 

The speedometer is an analog type gauge. The IPC receives the vehicle speed message from the GWM over the HS-CAN3. The GWM receives the vehicle speed message from the PCM over the HS-CAN1.

The IPC provides a tolerance that allows the speed indication to display up to 7% above the actual vehicle speed. This means that with an actual vehicle speed of 97 km/h [60 mph], the speedometer can indicate between 97-103 km/h (60-64 mph). Incorrect tire size or tire size configuration could potentially affect the speedometer accuracy.