A vehicle includes an electric machine and a controller configured to inject a voltage into the electric machine. The controller measures the currents caused by the voltage and processes the currents using a discrete Fourier transform to determine positive and negative sequence currents. A phase rotation sequence is identified by comparing the sequence currents to expected positive and negative sequence currents that are associated with possible phase rotation sequences. The electric machine may be controlled according to the identified phase rotation sequence. A cable swapped diagnostic may be output when the phase rotation sequence is different than an expected phase rotation sequence.
Voltage injection-based cable swap detection
09.02.2021
Patent
Elektronische Ressource
Englisch
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
High frequency voltage injection-based cable swap detection
Europäisches Patentamt | 2020
|HIGH FREQUENCY VOLTAGE INJECTION-BASED CABLE SWAP DETECTION
Europäisches Patentamt | 2020
|DETECTION METHOD FOR BATTERY SWAP IN BATTERY SWAP STATION
Europäisches Patentamt | 2022
|BATTERY SWAP PLATFORM, BATTERY SWAP STATION, AND BATTERY SWAP METHOD
Europäisches Patentamt | 2023
|