Patent ID: 11860239
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The diagnostic system of claim 1, wherein the one or more components of the power inverter comprise a diode and a power switch and wherein the power loss estimating module comprises:
a first calculating module configured to calculate a voltage drop, an on resistance, at least one of a power loss of the diode and a power loss of the power switch, a power factor, and a modulation index in response to a phase voltage and a filtered switch current; and
a power loss module configured to calculate conduction and switching loss of at least one of the power switch and the diode in response to the voltage drop, the on resistance, the at least one of the power loss of the diode and the power loss of the power switch, the power factor, the modulation index and a switching strategy/frequency.