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:
Jan. 01, 2019
Filed:
Jun. 17, 2015
Applicant:
Continental Automotive Gmbh, Hannover, DE;
Inventors:
Andreas Baier, Regensburg, DE;
Tany Gargiso, Donaustauf, DE;
Walter Schrod, Regensburg, DE;
Hans-Joerg Wiehoff, Regensburg, DE;
Assignee:
CONTINENTAL AUTOMOTIVE GMBH, Hanover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/20 (2006.01);
U.S. Cl.
CPC ...
F02D 41/2096 (2013.01); F02D 2041/2027 (2013.01); F02D 2041/2055 (2013.01); F02D 2041/2058 (2013.01);
Abstract
The present disclosure relates to internal combustion engines. The teachings thereof may be embodied in methods for determining a state of an injection valve of an internal combustion engine. Some methods may include actuating the piezo actuator in a pulse-width-modulated manner; recording the T on and/or T off switching times of the pulse-width-modulated piezo output stage of the piezo actuator; and evaluating the recorded switching times to derive the state of the injection valve.