Volvo's adaptive method controls traction inverter power semiconductors using real-time torque estimation and health predictions to select optimal gate or current control modes.

Patentradars sammanfattning

This Volvo Car Corporation patent discloses an adaptive control method for electric vehicle traction inverters that integrates torque metering, power semiconductor parameter monitoring, and health prediction to dynamically select an operating mode. The system determines whether to apply a first gate control, a multi-gate control of parallel power semiconductors, or a direct current control based on the combined inputs of torque demand and semiconductor health status. This approach enables condition-aware inverter management, potentially extending semiconductor lifetime and improving drivetrain reliability under varying load conditions.

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