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:
Nov. 02, 2010
Filed:
Apr. 28, 2009
Wenbo Wang, Novi, MI (US);
Mark D. Carr, Fenton, MI (US);
Michael J. Lucido, Northville, MI (US);
Jon C. Miller, Fenton, MI (US);
John F. Van Gilder, Webberville, MI (US);
Daniel P. Grenn, Highland, MI (US);
Hamid M. Esfahan, Ann Arbor, MI (US);
Ian J. Mac Ewen, White Lake, MI (US);
Wenbo Wang, Novi, MI (US);
Mark D. Carr, Fenton, MI (US);
Michael J. Lucido, Northville, MI (US);
Jon C. Miller, Fenton, MI (US);
John F. Van Gilder, Webberville, MI (US);
Daniel P. Grenn, Highland, MI (US);
Hamid M. Esfahan, Ann Arbor, MI (US);
Ian J. Mac Ewen, White Lake, MI (US);
Abstract
An engine control system includes a driver module and a diagnostics module. The driver module includes a high-side driver and a low-side driver, which selectively actuate a load. The driver module generates status signals based on detection of each of a plurality of failure modes of the high-side and low-side drivers. The diagnostics module increments a first error count for a first mode of the plurality of failure modes when the status signals indicate the driver module has detected the first mode. The diagnostics module increments a corresponding total count each time the driver module analyzes the first mode. The diagnostics module sets a fail state for a diagnostic trouble code (DTC) when the first error count for the first mode reaches a first predetermined threshold prior to the total count reaching a second predetermined threshold.