Invention Grant
- Patent Title: Method and apparatus to monitor position of a rotatable shaft
- Patent Title (中): 监测可旋转轴位置的方法和装置
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Application No.: US12245790Application Date: 2008-10-06
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Publication No.: US08179127B2Publication Date: 2012-05-15
- Inventor: Stephen T. West , Sean E Gleason
- Applicant: Stephen T. West , Sean E Gleason
- Applicant Address: US MI Detroit DE Stuttgart US MI Auburn Hills DE Munich
- Assignee: GM Global Technology Operations LLC,Daimler AG,Chrysler LLC,Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee: GM Global Technology Operations LLC,Daimler AG,Chrysler LLC,Bayerische Motoren Werke Aktiengesellschaft
- Current Assignee Address: US MI Detroit DE Stuttgart US MI Auburn Hills DE Munich
- Main IPC: G01B7/30
- IPC: G01B7/30
Abstract:
A rotatable shaft is equipped with a measurement device that generates output signals corresponding to discrete angular positions of the shaft. Rotational angles of the shaft are measured for a complete rotational period. A true angular velocity of the shaft is determined. Angular velocity is calculated between contiguous pairs of the discrete angular positions. A velocity correction is determined, and a rotational angle error term is determined based upon the velocity correction.
Public/Granted literature
- US20090115408A1 METHOD AND APPARATUS TO MONITOR POSITION OF A ROTATABLE SHAFT Public/Granted day:2009-05-07
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