INTEGRATED NON-CONTACTING TORQUE AND ABSOLUTE POSITION SENSOR FOR STEERING APPLICATIONS

Title:

INTEGRATED NON-CONTACTING TORQUE AND ABSOLUTE POSITION SENSOR FOR STEERING APPLICATIONS

Document Type and Number:

WIPO Patent Application WO2005076860

Kind Code:

A3

Abstract:

An integrated torque and position sensor is set forth for measuring the relative rotational movement between an input and an output shaft and for measuring the final angle position of the output shaft. The integrated sensor includes a wheel that rotates with the shaft. An incremental sensing mechanism detects the incremental rotation of the shaft. In response to the shaft rotating to a predetermined angle, an actuation mechanism engages the wheel with a change gear for every new revolution in which the shaft passes. A segment sensing mechanism detects the segment in which the shaft is disposed. A method is set forth to calibrate and compensate the electrical outputs generated by the integrated torque and position sensor. The method produces common amplitudes and establishes a common angle with an expected phase angle shift for the electrical outputs. The compensated electrical outputs are inserted into a solver equation and the values generated by the solver equation are inserted into an algorithm to calculate the final angle position of the shaft.

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Inventors:

FENG SAINAN (US)
ISLAM MOHAMMAD (US)
MIELKE MATTHEW W (US)
ROSS CHRISTIAN (US)
SEBASTIAN TOMY (US)
PATTOK ERIC (US)
PAVLAWK RYAN (US)
EL-NASHEF SAMUEL (US)
DAVIS ALAN C (US)
BURKHARD HARLEY D (US)

Application Number:

PCT/US2005/003161

Publication Date:

December 21, 2006

Filing Date:

February 01, 2005

Export Citation:

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Assignee:

DELPHI TECH INC (US)
FENG SAINAN (US)
ISLAM MOHAMMAD (US)
MIELKE MATTHEW W (US)
ROSS CHRISTIAN (US)
SEBASTIAN TOMY (US)
PATTOK ERIC (US)
PAVLAWK RYAN (US)
EL-NASHEF SAMUEL (US)
DAVIS ALAN C (US)
BURKHARD HARLEY D (US)

International Classes:

F16H21/12; G01D5/14; G01D5/245; G01L7/10

Foreign References:

US7028545B2	2006-04-18
US7021160B2	2006-04-04
US7021161B2	2006-04-04
US6983664B2	2006-01-10
US6978685B2	2005-12-27
US6973991B2	2005-12-13

Other References: