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:
Jan. 09, 2007
Filed:
Jun. 22, 2005
Hisashi Tsuda, Tokyo, JP;
Hideyasu Ihira, Tokyo, JP;
Tsunefumi Arita, Tokyo, JP;
Naoto Shima, Tokyo, JP;
Noboru Shimizu, Tokyo, JP;
Hisashi Tsuda, Tokyo, JP;
Hideyasu Ihira, Tokyo, JP;
Tsunefumi Arita, Tokyo, JP;
Naoto Shima, Tokyo, JP;
Noboru Shimizu, Tokyo, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
A steering speed-computing section () to differentiate a steering angle of a steering wheel from a steering angle sensor () to compute the steering speed signal, a low-pass filter () to cut high frequency components in the steering speed signal to output a correction steering speed signal, a switching section () to switch the cut-off frequency in the low-pass filter to be higher at the time of determining a high-speed steering condition, and a flow quantity-computing section () to compute a target flow quantity supplied to a power steering output section () based on the steering angle signal and the correction steering speed signal are provided to control a flow quantity of an operating oil supplied to the power steering output section () for the target flow quantity.