Invention Grant
US08766574B2 Method and control device for operating a three-phase brushless direct current motor
有权
用于操作三相无刷直流电动机的方法和控制装置
- Patent Title: Method and control device for operating a three-phase brushless direct current motor
- Patent Title (中): 用于操作三相无刷直流电动机的方法和控制装置
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Application No.: US13669834Application Date: 2012-11-06
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Publication No.: US08766574B2Publication Date: 2014-07-01
- Inventor: Thomas Dorner , Juergen Groth , Heiko Engelhardt
- Applicant: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Hallstadt
- Applicant Address: DE Hallstadt
- Assignee: Brose Fahrzeugteile GmbH & Co. KG, Hallstadt
- Current Assignee: Brose Fahrzeugteile GmbH & Co. KG, Hallstadt
- Current Assignee Address: DE Hallstadt
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102010019494 20100506
- Main IPC: H02P23/12
- IPC: H02P23/12

Abstract:
A method and a control device operate a three-phase brushless direct current motor with phase windings that are fed by an inverter connected to a voltage source having a high potential and a low potential. The semiconductor switches of the inverter are arranged in a bridge circuit and are controlled such that current always flows through two phase windings during motor operation. The motor is operated with normal commutation when the rotational speed is greater than or equal to a minimum rotational speed, wherein the angles are shifted by 60°. During start-up operation, up to the minimum rotational speed, a high-potential-side commutation angle of a phase winding is shifted toward a low-potential-side commutation angle of the phase winding by an angle greater than 0° and less than or equal to 60° with respect to the normal commutation.
Public/Granted literature
- US20130063060A1 METHOD AND CONTROL DEVICE FOR OPERATING A THREE-PHASE BRUSHLESS DIRECT CURRENT MOTOR Public/Granted day:2013-03-14
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