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. 08, 2008
Filed:
May. 16, 2006
Naoki Yoshida, Zama, JP;
Kiyoshi Inoue, Machida, JP;
Makoto Wagatsuma, Tachikawa, JP;
Toru Takamura, Zama, JP;
Naoki Yoshida, Zama, JP;
Kiyoshi Inoue, Machida, JP;
Makoto Wagatsuma, Tachikawa, JP;
Toru Takamura, Zama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A priority flow rate control valve () distributes pressurized working oil discharged from a hydraulic pump () driven by an electric motor () to a power steering device () first, and distributes the residual pressurized working oil to a cargo handling device (). The rotation speed of the electric motor () and the distribution ratio of the pressurized working oil of the priority flow rate control valve () vary depending on the operation states of these devices (). By decreasing the rotation speed of the electric motor () at a rate smaller than a normal decrease rate when the cargo handling device () stops operation in a state where the power steering device () and the cargo handling device () are in operation, a kickback in a steering wheel () due to a response delay of the priority flow rate control valve () can be prevented.