Elektrisches Servolenksystem

Details

Veröffentlichungs-Nr.

EP3075636

Aktenzeichen

EP16162604

Anmeldetag

29. März 2016

Veröffentlichung

4. Juli 2018

Erteilung

4. Juli 2018

Rechtsraum

EP

IPC

H02P6/08H02P6/28B62D5/04

Abstract

An electric power steering system is provided that allows an actual assist force to follow a target assist force more quickly. An assist command value calculation circuit 33 includes a torque shift control circuit 50, a phase lag compensation control circuit 51, a basic assist control circuit 52, and a phase lead compensation control circuit 53. A determination circuit 38 determines whether a motor 20 has been continuously under high load or not based on a current command value Ia* and a current limit value Ilim. The determination circuit 38 determines whether the motor 20 has been continuously under high load or not by comparing the current command value Ia* with the current limit value Ilim and comparing a basic assist controlled variable Tas* with the current limit value Ilim, and outputs a phase compensation restriction flag. The phase lag compensation control circuit 51 and the phase lead compensation control circuit 53 restrict phase restriction when the phase compensation restriction flag is ON, and continues phase compensation when the phase compensation restriction flag is OFF.

Anmelder

Firmen

JTEKT CORPORATION
JTEKT Corporation

Land

🇯🇵 Japan

Fachgebiete