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:
Apr. 03, 2018
Filed:
Dec. 05, 2012
Jtekt Corporation, Osaka-shi, Osaka, JP;
Toyoki Sugiyama, Kitakatsuragi-gun, JP;
Yasuyuki Yoshii, Tenri, JP;
JTEKT CORPORATION, Osaka, JP;
Abstract
When a vehicle is quickly steered while the vehicle is travelling at an extremely low speed, a load on an in-vehicle power supply is reduced without deteriorating a steering feeling by reducing a motor driving current. A steering speed is compared with a threshold. When the steering speed is lower than the threshold, the process proceeds to step S. In step S, a voltage value of a battery power supply, which is used as a prescribed value, is set as a limit voltage in order to reduce a motor consumption current. When the steering speed is higher than the threshold, a value 'V/n' lower than the prescribed value is set as the limit voltage to reduce a consumption current when the steering wheel is steered without driving. 'n' is “delay adjustment parameter”, and is a real number that exceeds 1.