Invention Grant
- Patent Title: Method for operating and apparatus for activating a rotating, brushless electrical machine
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Application No.: US14605515Application Date: 2015-01-26
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Publication No.: US09602029B2Publication Date: 2017-03-21
- Inventor: Johannes Schwarzkopf
- Applicant: Brose Fahrzeugteile GmbH & Co. KG, Wuerzburg
- Applicant Address: DE Wuerzburg
- Assignee: Brose Fahrzeugteile GmbH & Co. KG, Wuerzburg
- Current Assignee: Brose Fahrzeugteile GmbH & Co. KG, Wuerzburg
- Current Assignee Address: DE Wuerzburg
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: DE102014000945 20140124
- Main IPC: G05B11/28
- IPC: G05B11/28 ; H02P6/00 ; H02P27/08 ; H02M7/5395 ; H02M1/00

Abstract:
A method for operating a brushless, rotating electrical machine, including at least three phase windings, each of which has a first phase winding terminal and a second phase winding terminal. The phase windings are connected to each other, in particular the particular second phase winding terminals are connected to a shared star point, and phase-width-modulated voltage signals being applied separately to each individual phase winding, and at least one selected phase winding being at least temporarily connected to a constant electrical potential. To minimize switching operations and to reduce the alternating current component of the current source, the pulses of the pulse-width-modulated signals applied to the remaining phase windings are at least temporarily phase-shifted with respect to each other during the period in which the selected phase winding is connected to a constant electrical potential.
Public/Granted literature
- US20150214869A1 METHOD FOR OPERATING AND APPARATUS FOR ACTIVATING A ROTATING, BRUSHLESS ELECTRICAL MACHINE Public/Granted day:2015-07-30
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