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:
Aug. 04, 2015
Filed:
Jan. 10, 2013
Ningsheng Qiao, Troy, MI (US);
Michael Cottrell, White Lake, MI (US);
Francois Fabre, West Bloomfield, MI (US);
Ningsheng Qiao, Troy, MI (US);
Michael Cottrell, White Lake, MI (US);
Francois Fabre, West Bloomfield, MI (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A power supply diagnostic circuit includes a switching power supply that generates a voltage for powering a fuel injector. An injector control module selectively applies the voltage to the fuel injector and monitors a resultant electrical current flow through the fuel injector. The switching power supply includes a dual path circuit comprising two inductors, two MOSFETs, and two diodes. The injector control module determines whether one path of the dual path circuit is defective based on the electrical current flow.