Drehnachweisvorrichtung, Drehwinkelerfassungsvorrichtung und Elektrisches Servolenksystem

Details

Veröffentlichungs-Nr.

EP3076135

Aktenzeichen

EP16162600

Anmeldetag

29. März 2016

Veröffentlichung

24. Januar 2018

Erteilung

24. Januar 2018

Rechtsraum

EP

IPC

G01D5/14G01D5/244B62D5/04

Abstract

A rotation detection apparatus, a rotation angle detection apparatus, and an electric power steering system are provided which allow appropriate detection of an abnormality in a portion that detects rotation of a rotating shaft. A first arithmetic circuit (51) calculates a rotating direction (D1) and a number of rotations (N1) of the rotating shaft (12a) based on a change in a combination of positivity and negativity of a first electric signal (S1) (first sine signal) and a third electric signal (S3) (first cosine signal). A second arithmetic circuit (52) calculates a rotating direction (D2) and a number of rotations (N2) of the rotating shaft (12a) based on a change in a combination of positivity and negativity of a second electric signal (second sine signal) and a fourth electric signal (second cosine signal). An abnormality determination circuit (53) determines whether each of the first and second arithmetic circuits (51) and (52) is abnormal based on the two rotating directions (D1) and (D2) calculated by the first and second arithmetic circuits (51) and (52), respectively.

Anmelder

Firmen

JTEKT CORPORATION
JTEKT Corporation

Land

🇯🇵 Japan

Fachgebiete