Motor control device, motor unit including said motor control device, automobile including motor unit, and motor control method

Motor controller of the present invention is used in an automobile including wheel drive motor, wheel drive inverter, and cooling fan being an accessory. Wheel drive inverter drives wheel drive motor by PWM control at a primary carrier frequency. Cooling fan has fan motor being an accessory drive mo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Isoda, Mineaki, Hidaka, Masahito, Kuyama, Koji
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	Motor controller of the present invention is used in an automobile including wheel drive motor, wheel drive inverter, and cooling fan being an accessory. Wheel drive inverter drives wheel drive motor by PWM control at a primary carrier frequency. Cooling fan has fan motor being an accessory drive motor. Motor controller includes accessory drive inverter and frequency switch. Accessory drive inverter drives fan motor by PWM control at a secondary carrier frequency. Frequency switch switches a frequency of the secondary carrier frequency based on the primary carrier frequency.