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:
Sep. 12, 1978
Filed:
Feb. 24, 1976
Jurgen Assenheimer, Vaihingen, DE;
Valerio Bianchi, Hochdorf, DE;
Johannes Brettschneider, Ludwigsburg, DE;
Reinhard Latsch, Vaihingen, DE;
Dieter Scherenberg, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A process for controlling the operation of an internal combustion engine based on the volumetric efficiency of the engine to define a primary nominal fuel quantity. The process also includes measuring the fluctuations in the volumetric efficiency. In order to operate the engine in a preferred leaned-out condition, a nominal set-point value of the permitted range of fluctuations of the volumetric efficiency is established and the actual measured fluctuations are maintained in that range by changing the fuel metered out to the engine. Various methods for measuring the volumetric efficiency indirectly by pressure measurements in the induction tube are presented.