ROTATION ANGLE DETERMINING APPARATUS - FURUKAWA ELECTRIC CO LTD

Title:

ROTATION ANGLE DETERMINING APPARATUS

Document Type and Number:

WIPO Patent Application WO/2008/056793

Kind Code:

A1

Abstract:

A rotation angle determining apparatus comprises an angle determining means that has determining circuits each including a determining element part consisting of a coil and a resistor and that also has an inductance changing means that changes the inductance of the coil in accordance with the rotation of a rotating object to be determined. The rotation angle determining apparatus further comprises a reference pulse voltage generating means (101) that causes the determining circuits (110,120) to generate output signals; and a calculating means that calculates the output signals of the determining circuits. In this rotation angle determiningapparatus, a reference pulse voltage generated by the reference pulse voltage generating means is compared with the output voltages of the determining circuits developed when the reference pulse voltage is inputted to the determining circuits. The result of this comparison is used to calculate a rotation angle of the rotating object, thereby achieving a high degree of determination accuracy over a wide range of rotation angles even in an environment of dynamically changing temperature in spite of a reduced number of components constituting the rotation angle determining apparatus.

Inventors:

SAITO SHINYA (JP)
HASHIMOTO KYOSUKE (JP)
HORI SHINJI (JP)

Application Number:

PCT/JP2007/071843

Publication Date:

May 15, 2008

Filing Date:

November 09, 2007

Export Citation:

Click for automatic bibliography generation Help

Assignee:

FURUKAWA ELECTRIC CO LTD (JP)
SAITO SHINYA (JP)
HASHIMOTO KYOSUKE (JP)
HORI SHINJI (JP)

International Classes:

G01D5/20; B62D1/20; B62D5/04

Foreign References:

JP2006038849A	2006-02-09
JP2003207302A	2003-07-25
JP2006153843A	2006-06-15
JP2003202240A	2003-07-18
JP2004053444A	2004-02-19

Other References: