Elektrisches Servolenksystem

Details

Veröffentlichungs-Nr.

EP2757023

Aktenzeichen

EP14151241

Anmeldetag

15. Januar 2014

Veröffentlichung

29. November 2017

Erteilung

29. November 2017

Rechtsraum

EP

IPC

B62D5/04

Abstract

There is provided a drive control method for a motor including multiple sets of coils and drive circuits in an electric power steering system. In order to reduce computational load when sensorless control is executed, an electrical angle estimator (110) includes an ±-axis voltage component adder (115) and a ²-axis voltage component adder (116) that add together voltage vectors of a first coil (221) and a second coil (222) expressed in a two-phase fixed coordinate system, an ±-axis current component adder (117) and a ²-axis current component adder (118) that add together current vectors of the first coil (221) and the second coil (222) expressed in a two-phase fixed coordinate system, and an induced voltage computing unit (119) that computes an induced voltage (E) based on an added voltage vector and an added current vector.

Anmelder

Firmen

JTEKT Corporation
JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete