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:
Feb. 01, 2005
Filed:
Oct. 01, 2002
Shuming Chen, Kyoto, JP;
Shuming Chen, Kyoto, JP;
Nippon Yusoki Co., Ltd., Kyoto, JP;
Abstract
A control apparatus includes a target acceleration obtaining device for obtaining a target acceleration of a hydraulic motor based on an operation amount of a lift lever; a torque command value obtaining device for obtaining a torque command value of a hydraulic motor based on the target acceleration; a determining device for determining as a non-regeneration state or as a regeneration state based the torque command value; and a change-over control device for changing over a change-over member so as to couple a lift cylinder to a flow rate control valve when determined as the non-regeneration state, and for changing over the change-over member so as to couple the lift cylinder to a hydraulic pump and making an inverter controller control the hydraulic motor in accordance with the torque command value when determined as the regeneration state.