Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2008-07-29
2008-07-29
Leykin, Rita (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
C318S400320, C318S400330
Reexamination Certificate
active
07405527
ABSTRACT:
A method for controlling an electronically commutated DC motor is provided, the DC motor including at least one particularly permanent magnetic rotor and a wound stator, which is a drive motor for an adjuster device on a pneumatically operated disc brake. The rotor position is determined from electrically measured parameters without sensing of the rotor position. The invention is characterized in that two determination methods for determining the rotor position from electrically measured parameters are combined with each other, whereby one is an inductive measurement and a further one of the determination methods is a measurement of the inducted voltage.
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Jang et al [IEEE Proceedings: Electric Power Application vol. 149, No. 2, Mar. 2, 2002 pp. 137-142].
Jang G H et al. Position detection and start-up algorithm of a rotor in a sensorless BLDC motors utilizing inductance variation.□□IEEE Proc-Electr. Power Application, vol. 149, No. 2, Mar. 2002.
G.H. Jang, et al., “Position detection and start-up algorithm of a rotor in a sensorless BLDC motor uitlising inductance variation”,IEE Proceedings: Electric Power Applications, Institution of Electrical Engineers, vol. 149, No. 2, Mar. 2002, pp. 137-142.
Baumgartner Johann
Gschossmann Guenther
Crowell & Moring LLP
Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH
Leykin Rita
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