The present invention relates to an offset correction method of inverter hall sensors for an air blower of a fuel cell vehicle, to measure and correct the offset angle of the hall sensors before controlling current of a permanent magnet synchronous motor (PMSM). According to an embodiment of the present invention, the offset correction method of inverter hall sensors for an air blower of a fuel cell vehicle comprises the following steps of: an inertial braking step to block current applied to a permanent magnet synchronous motor (PMSM) driving a blower used for an air supply system of a fuel cell; a step of calculating an angle to calculate an offset angle by measuring Vd_syn and Vq_syn in the inertial braking step; and a step of correcting an angle of the hall sensor based on the calculated angle of a synchronous coordinates.
본 발명은 연료전지차량 공기블로워용 인버터 홀센서의 옵셋 보정방법에 관한 것이다. 본 발명의 일 실시예에 의한 연료전지차량 공기블로워용 인버터 홀센서의 옵셋 보정방법은, 연료전지의 공기 공급계에 사용되는 블로워를 구동하는 PMSM(Permanent Magnet Syncronous Motor)에 인가하는 전류를 차단하는 관성제동단계; 상기 관성제동단계시 Vd_syn와 Vq_syn을 측정하여 오프셋 각도를 계산하는 각도계산단계; 및 상기 계산된 동기좌표계의 각도에 기초하여 홀센서의 각도를 보정하는 보정단계를 포함한다.
OFFSET CORRECTION METHOD OF THE INVERTER HALL SENSORS FOR AIR BLOWER OF FUEL CELL VEHICLE
연료전지차량 공기블로워용 인버터 홀센서의 옵셋 보정방법
2016-06-21
Patent
Electronic Resource
Korean
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
Offset correction method of the inverter hall sensors for air blower of fuel cell vehicle
European Patent Office | 2017