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:
Apr. 23, 2002
Filed:
Aug. 28, 2001
Alain Atanasyan, Pibrac, FR;
Jean-Paul Ferrie, Cugnaux, FR;
Siemens Automotive S.A., Toulouse, FR;
Abstract
A process for determining the pressure prevailing in a fuel injection manifold of an internal combustion engine includes supplying the feeding pump ( ) with fuel such that the injection manifold will be supplied with fuel at the feeding pressure, measuring the pressure prevailing in the injection manifold ( ) with the pressure sensor ( ) when the fuel is at the feeding pressure, deducing therefrom the percentage of error (e) of the pressure sensor, and memorizing this error, establishing a law of linear decrease of this error, between the feeding pressure and the lower limit of the range of maximum precision of the sensor, and deducing therefrom, for each value of pressure measured by the sensor between the feeding pressure and the lower pressure limit, the real value of the pressure of the fuel in the injection manifold, to correct the quantity of injected fuel.