Method for initializing position with an encoder

Details Method for initializing position with an encoder Method for initializing position with an encoder

2005-07-05

2005-07-05

Tokar, Michael (Department: 2819)

Coded data generation or conversion

Digital pattern reading type converter

Plural denominationally related carriers

C341S011000, C341S035000

Reexamination Certificate

active

06914543

ABSTRACT:
A method for detecting an absolute rotational position of an electromechanical device or the at least one component thereof comprising determining a first absolute position of the electromechanical device or the at least one component thereof based on a commutation index signal, obtaining a Z-index signal, and determining a second absolute position of the electromechanical device or the at least one component thereof based on the Z-index signal. The method initially determines a coarse rotational position of the electromechanical device such as a rotor or steering wheel based on the commutation index signal. When a device's position is first initialized by a commutation index signal before the Z-index pulse is detected, the device's position is re-initialized upon detection of the Z-Index pulse to provide a more accurate absolute device rotational position.

REFERENCES:
patent: 4041483 (1977-08-01), Groff
patent: 4255789 (1981-03-01), Hartford et al.
patent: 4807164 (1989-02-01), Onyon
patent: 5038243 (1991-08-01), Gordon
patent: 5382889 (1995-01-01), Peters et al.
patent: 5457371 (1995-10-01), Gordon
patent: 5489845 (1996-02-01), Weber et al.
patent: 5528930 (1996-06-01), Park
patent: 5720285 (1998-02-01), Petersen
patent: 5767767 (1998-06-01), Lima et al.
patent: 5902934 (1999-05-01), Sprague et al.
patent: 5926122 (1999-07-01), Dalton
patent: 5998783 (1999-12-01), Stridsberg
patent: 6021171 (2000-02-01), Andrews
patent: 6073713 (2000-06-01), Brandenburg et al.
patent: 6084234 (2000-07-01), Stridsberg
patent: 6172359 (2001-01-01), Stridsberg
patent: 6191415 (2001-02-01), Stridsberg
patent: 6329782 (2001-12-01), Chen et al.
patent: 6486658 (2002-11-01), Naidu
patent: 6498451 (2002-12-01), Boules et al.
patent: 6683543 (2004-01-01), Yeo
patent: 2001/0045828 (2001-11-01), Naidu
patent: WO 01/20600 (2001-03-01), None
patent: WO 02/20293 (2002-03-01), None
Search Report dated Aug. 22, 2003 for corresponding British Patent Application No. GB 0309838.1.

Affiliated with

Also associated with

Rating

Method for initializing position with an encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for initializing position with an encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for initializing position with an encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3415849