The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2012
Filed:
Feb. 23, 2009
Werner Wallrafen, Hofheim, DE;
Werner Wallrafen, Hofheim, DE;
Continental Automotive GmbH, Hannover, DE;
Abstract
The invention relates to a method for operating an actuating drive having an electrically commutated motorfor adjusting an actuating member, having a position sensorfor detecting the rotary angle position of the rotor of the motor or of an element which can be driven in a rotatable manner by said motor. A motor control unitserves to commutate the motorand to regulate the position of the actuating member, it being possible to supply position signals, which correspond to the position values detected by the position sensor, to the motor control unit. After the actuating drive is started, uncompensated measured values are detected by the position sensorover at least one full revolution of the rotor or of the element which can be driven in a rotatable manner; corresponding correction values for compensating angle errors are formed in a compensation unit. The correction values are fed to a memory unitfor storage purposes, and the errors in the position values, which are detected during further operation, are compensated with the correction values and are fed to a commutation unitand to a position regulation unitof the motor control unit