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.

Date of Patent:
Dec. 02, 1997

Filed:

Feb. 29, 1996
Applicant:
Inventors:

Hiroshi Nakagami, Hirakata, JP;

Shigenori Matsushita, Hirakata, JP;

Shigeru Yamamoto, Hirakata, JP;

Assignee:

Komatsu, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; E02F / ; B60K / ;
U.S. Cl.
CPC ...
36442407 ; 364423098 ; 364426019 ; 364426025 ; 172-45 ; 172-2 ; 172-3 ; 172-7 ; 414699 ; 414700 ; 180197 ;
Abstract

A blade control system for a bulldozer, comprising: (a) a pitch angle detector for detecting a pitch angle of a vehicle body when the vehicle body inclines back and forth; (b) an actual tractive force detector for detecting an actual tractive force of the vehicle body; and (c) a controller for correcting the actual tractive force detected by the actual tractive force detector according to the pitch angle detected by the pitch angle detector and for controlling the blade to be lifted or lowered such that the corrected actual tractive force becomes equal to a target tractive force.


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