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:
Jul. 31, 1984
Filed:
Jul. 30, 1981
Applicant:
Inventors:
Yves Bonnetain, Lyons, FR;
Jean P Sibeud, Chaponnay, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; G07C / ; G09B / ;
U.S. Cl.
CPC ...
364442 ; 74866 ; 3644241 ;
Abstract
The invention pertains to a method and an apparatus, designed to assist the driver of a motor vehicle. The apparatus includes a calculator which is connected to an engine speed sensor, an engine fuel flow sensor, and a transmission speed sensor. The output of the calculator is displayed on an audio/visual display panel. This apparatus defines the operating range of the engine on the load/speed diagram; it also indicates shifting to a different gear, whenever desirable, in order to minimize the vehicle's fuel consumption.