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:
Jun. 29, 1993
Filed:
Nov. 27, 1990
Applicant:
Inventor:
Mark W Stasell, Fort Wayne, IN (US);
Assignee:
Navistar International Transportation Corp., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; F02D / ;
U.S. Cl.
CPC ...
36443107 ; 36442604 ; 123352 ; 180179 ; 180176 ;
Abstract
A microprocessor engine control for a diesel engine powered truck is provided with a grade-holder vehicle speed control by another algorithm that is effective to cause the engine operation to move from one horsepower vs. speed curve to another when the vehicle encounters a change in load, such as when the vehicle encounters a change in grade.