ELECTRIC POWER STEERING DEVICE

ELECTRIC POWER STEERING DEVICE

PROBLEM TO BE SOLVED: To provide an electric power steering device capable of restraining abnormal noise when a feedback limit such as end-pad protection control is canceled, and the deterioration of steering feeling. SOLUTION: This electric power steering device limits the feedback control of a cur...

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Hauptverfasser: HOJO MASAAKI, SAITO TAKAHIRO, SUEHIRO KANAME
Format: Patent
Sprache:eng
Schlagworte:
LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
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creator HOJO MASAAKI
SAITO TAKAHIRO
SUEHIRO KANAME
description PROBLEM TO BE SOLVED: To provide an electric power steering device capable of restraining abnormal noise when a feedback limit such as end-pad protection control is canceled, and the deterioration of steering feeling. SOLUTION: This electric power steering device limits the feedback control of a current control part 63 by executing a duty limit control for limiting a duty of a pulse width modulation signal as end-pad protecting control when a steering mechanism reaches a steering limit, and restrains a rapid change of a driving current of an electric motor 12 when limit control is canceled by resetting a past value of an integration value of a current control part 63 to a constant value while executing the duty limit control, and resetting the past value to a constant value when the duty limit control is canceled. COPYRIGHT: (C)2009,JPO&INPIT
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subjects LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MOTOR VEHICLES
PERFORMING OPERATIONS
TRAILERS
TRANSPORTING
title ELECTRIC POWER STEERING DEVICE
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