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:
Dec. 13, 2016
Filed:
Mar. 07, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Andrej Elsinger, Ditzingen, DE;
Ulrich Doebler, Vaihingen/Enz, DE;
Cornelia Giessler, Beilstein, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a method for controlling a valve which injects fuel into a combustion chamber of an engine and which has a valve member which closes a valve opening, and an electric actuator which drives the valve member to carry out strokes for releasing the valve opening and to which electrical control signals are applied for triggering valve member strokes of a defined stroke size, in order to compensate for an age-related stroke reduction of the valve member and deteriorated metering of the injected fuel related thereto, a stroke loss model into which temperature and temperature changes at the valve as well as the number of strokes carried out by the valve member are continuously incorporated is used to predict a reduction of the stroke size as a stroke loss and to correct the control signals using the predicted stroke loss.