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:
Mar. 28, 2006
Filed:
Aug. 25, 2003
Kazunori Nakamura, Tsuchiura, JP;
Toichi Hirata, Ushiku, JP;
Yasushi Arai, Tsuchiura, JP;
Yoichi Kowatari, Ibaraki-ken, JP;
Gen Yasuda, Ibaraki-ken, JP;
Hiroshi Watanabe, Ushiku, JP;
Kazunori Nakamura, Tsuchiura, JP;
Toichi Hirata, Ushiku, JP;
Yasushi Arai, Tsuchiura, JP;
Yoichi Kowatari, Ibaraki-ken, JP;
Gen Yasuda, Ibaraki-ken, JP;
Hiroshi Watanabe, Ushiku, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
A machine body controllerA includes a modification control unitAb for computing a torque modification value based on detected signals from environment sensorstoand modifies a maximum absorption torque of a hydraulic pump controlled by a basic control unitAa. An engine controllerB includes a modification control unitBb for computing an injection modification value based on detected the signals from the environment sensorstoand modifies a fuel injection state of a fuel injection devicecontrolled by a basic control unitBa. The controllersA,B further include computation element altering unitsA communication controllerC downloads alteration data obtained from an external terminalto the computation element altering unitswhereby corresponding computation elements contained in the modification control unitsAb,Bb are altered. As a result, it is possible in any environments to approprately modify the maximum absorption torque of the hydraulic pump and the fuel injection state of the injection device, and to sufficiently develop the performance of a construction machine.