Alerts

The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase B. Phase B hardware may need investigation.

This alert is intended for logging purposes. Phase B hardware may need investigation.

HV bus voltage exceeds set upper voltage threshold

Unable to produce torque/power from drive unit

LV supply voltage to DI is disconnected or drops below lower voltage threshold.

The DI ECU triggers limp mode (see separate limpMode alerts) and cannot produce torque or power.

The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.

This alert is intended for logging purposes. Phase A hardware may need investigation.

The DIx ECU has detected the current sensor RMS current has exceeded the expected RMS threshold on Phase B.

DIx may not function as expected, including vehicle power being limited.

LV supply voltage to DI exceeds the set upper voltage limit.

No immediate impact. Could damage drive inverter LV hardware if LV is continuously too high.

The motor speed measured by the Drive Unit resolver does not match the ABS wheel speed sensors. There may be a condition affecting the functionality of the Drive Unit or wiring.

The Drive Unit may not function as expected, including a reduction in vehicle power. The vehicle's drive cycle may not function as expected, or at all.

The Drive Unit resolver has detected the motor exceeding typical speed. The rotor or rotor shaft may have a condition affecting functionality.

The motor is exceeding typical speed. The motor and Drive Unit may not function as expected.

The phase gate drive has detected four fault related signals from the induction motor or ten from the magnet motor. The induction motor or magnet motor may have a condition affecting functionality.

The phase gate drive fault counter may block any power stage from enabling. The drive unit may not function as expected.

The Switch Off Path Test (SOPT) for Drive Unit has failed. The DIx and PM torque measurements are different. The pathway between DIx and PM may have a condition affecting functionality.

PM may not be able to shut down torque produced by Drive Unit.

The rotor's temperature is too hot, limiting DIx motor torque production. There may be a condition affecting DIx or the motor.

The DIx motor may not produce torque as expected. The Drive Unit may not operate as expected.

The torque production safety monitor has detected excess torque production and inhibited DIx torque production for the remainder of the drive cycle.

The torque production safety monitor will inhibit torque and excess heat production for the remainder of the drive cycle.

The DI ECU detects abnormal operation in the powertrain system. Alert log signal data provides information on the specific condition(s) detected.

The performance (torque and power of the drive system) is severely limited.

Abnormal temperature measurements from heatsink sensor

Unable to monitor heatsink sensor temperature

Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too low.

Heatsink temperature (refer to heatsinkTemp) exceeds upper temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too high.

Abnormal temperature measurements from ambient sensor

Unable to monitor ambient sensor temperature

Ambient temperature (refer to pcbTemp) drops below lower temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too low.

Ambient temperature (refer to pcbTemp) exceeds upper temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too high.

Inverter detects a shorted switch

Inverter may not allow drive on next drive cycle