Anomalieerkennungssystem für Drehwinkelsensor

Details

Veröffentlichungs-Nr.

EP2752645

Aktenzeichen

EP14150027

Anmeldetag

2. Januar 2014

Veröffentlichung

3. Mai 2017

Erteilung

3. Mai 2017

Rechtsraum

EP

IPC

G01D3/08G01D5/244G01D5/12

Abstract

In an abnormality detection system for a rotation angle sensor, a fact that an abnormality has occurred in one of sine signals (S1, S2) or in one of cosine signals (S3, S4) is detected based on a sum of the electrical signals (S1, S2), and a sum of the electrical signals (S3, S4) (first detection result). A fact that an abnormality has occurred in one of the positive sine and cosine signals (S1, S3) or in one of the negative sine and cosine signals (S2, S4) by comparing a first temperature computed using a correlation between an amplitude (A) and a temperature and based on the electrical signals (S1, S3), a second temperature computed using a correlation between the amplitude (A) and a temperature and based on the electrical signals (S2, S4), and a third temperature detected by a temperature sensor (91) with each other (second detection result). A microcomputer (42) identifies which of the electrical signals is abnormal by comparing the first and second detection results with each other.

Anmelder

Firmen

JTEKT Corporation
JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete