The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2022
Filed:
Feb. 14, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Tsukasa Miyajima, Atsugi, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A control device () is equipped with a steering angle returning torque target value setting unit () which calculates a returning control amount target value (MapOut) based on a vehicle speed (Vs) and a turning angle (θb), and with a steering angle returning torque command signal calculation unit () which calculates a retuning control amount (RetOut) based on the retuning control amount target value (MapOut). The steering angle returning torque command signal calculation unit () is equipped with a rate limiter (). The rate limiter () determines a change in the vehicle speed (Vs) from a vehicle speed sensor (), and gradually increases or decreases the retuning control amount target value (MapOut) at a certain rate and then outputs the returning control amount (RetOut).