DPB_a051_PSCVoltageImplausible

Based on the motor current vector and speed the voltage vector is not plausible.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Power braking assist reduced
Braking may require increased effort

Impact

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

Description

Based on the motor current vector and speed the voltage vector is not plausible.

Cause

Based on the differential motor model equations the expected voltage vector is calculated from measured motor phase currents and motor speed. This is compared to the output of the field-oriented current controller. In case of large deviations the alert is triggered.

Clear condition

No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.

Models

Model Y 2025+

Visibility

customer, service-fix

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