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:
Nov. 19, 1996
Filed:
Mar. 18, 1996
Applicant:
Inventors:
Alan L Ferguson, Peoria, IL (US);
Conrad G Grembowicz, Peoria, IL (US);
Larry E Kendrick, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ; F04B / ;
U.S. Cl.
CPC ...
36443103 ; 36443107 ; 36442407 ; 417 34 ; 417 53 ; 60431 ; 60445 ; 60449 ;
Abstract
An apparatus for controlling the load of an engine associated with an hydrostatic drive system is disclosed. The apparatus modifies a pump displacement command signal in response to the actual and desired engine acceleration. The modified pump displacement command signal is used to control the displacement of a variable pump in order to regulate the load on the engine to achieve optimum efficiency.