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. 17, 2018
Filed:
Nov. 11, 2014
Applicant:
Delphi Automotive Systems Luxembourg SA, Bascharage, LU;
Inventors:
Assignee:
DELPHI AUTOMOTIVE SYSTEMS LUXEMBOURG SA, Luxembourg, LU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P 15/10 (2006.01); F02D 41/00 (2006.01); F02P 3/04 (2006.01); F02P 3/05 (2006.01); F02P 3/055 (2006.01); F02P 17/12 (2006.01);
U.S. Cl.
CPC ...
F02P 15/10 (2013.01); F02D 41/009 (2013.01); F02P 3/0442 (2013.01); F02P 3/053 (2013.01); F02P 3/0554 (2013.01); F02P 17/12 (2013.01);
Abstract
A method is provided for controlling an ignition system which includes a spark plug control unit adapted to control at least one coil stage, the at least one coil stage adapted to successively energize and de-energize to provide a current to a spark plug, each coil stage includes a primary winding inductively coupled to a secondary winding. The method includes measuring low side voltages at one or more of each coil stage and controlling a duty cycle or a pulse width of a PWM-signal of a step-down converter stage dependent on a battery voltage, a maximum primary current threshold, and the measured voltages.