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:
Aug. 30, 2005
Filed:
Sep. 21, 2004
Masahiro Funato, Hirakata, JP;
Toshikazu Okada, Osaka, JP;
Shigeru Yamamoto, Hirakata, JP;
Tomohiro Nakagawa, Hirakata, JP;
Masahiro Funato, Hirakata, JP;
Toshikazu Okada, Osaka, JP;
Shigeru Yamamoto, Hirakata, JP;
Tomohiro Nakagawa, Hirakata, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A vehicle control system having an engine and a hydro-mechanical transmission, which further comprises a decelerator for changing target engine speed according to the operating amount of a decelerator pedal; a hydrostatic transmission unit controlling means for controlling a hydrostatic transmission unit so as to make the actual speed of the engine coincident with the target engine speed; and engine controlling means for controlling the engine such that if the target engine speed is changed from a first target value to a second target value lower than the first target value by the decelerator, the output torque of the engine is reduced, while keeping the ratio of the amount of change in the output torque of the engine to the amount of change in the target engine speed constant or substantially constant.