Invention Grant
- Patent Title: Method for operating a brushless electric motor
- Patent Title (中): 无刷电动机的运行方法
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Application No.: US13634039Application Date: 2011-03-23
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Publication No.: US09041326B2Publication Date: 2015-05-26
- Inventor: Christian Gunselmann , Mathias Fernengel , Nicolas Bruyant , Lionel Guichard , Michel Parette
- Applicant: Christian Gunselmann , Mathias Fernengel , Nicolas Bruyant , Lionel Guichard , Michel Parette
- Applicant Address: DE
- Assignee: Continental Automotive GmbH
- Current Assignee: Continental Automotive GmbH
- Current Assignee Address: DE
- Agency: RatnerPrestia
- Priority: DE102010003149 20100323
- International Application: PCT/EP2011/054477 WO 20110323
- International Announcement: WO2011/117311 WO 20110929
- Main IPC: H02H7/08
- IPC: H02H7/08 ; H02P6/14 ; B62D5/04 ; H02P29/02 ; H02P6/08 ; G01R31/42

Abstract:
A method for operating a brushless electric motor, the windings being energized by an inverter with the aid of six switches. A detection unit for detecting defective switches, a unit for measuring voltage at the outputs of the inverter, and a microcontroller for controlling the switch and for generating a pulse width modulated voltage supply for the windings are provided. A short-circuited switch causes a torque in the electric motor opposite the actuating direction of the electric motor. The method proposes that after detecting a short-circuited switch, the windings (U. V. W) are energized to generate a motor torque that is, on the whole, positive. An actuating period of the electric motor is divided into a plurality of sectors, wherein, in accordance with the defective switch, individual sectors are deactivated for the actuation of the windings (U, V, W), while other sectors are used to actuate the windings (V, W).
Public/Granted literature
- US20130193885A1 METHOD FOR OPERATING A BRUSHLESS ELECTRIC MOTOR Public/Granted day:2013-08-01
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