Paul R Jordan

Address:

9258 Manistique St, Detroit, MI 48224

Phone:

(313)8544542

VIN:

2FMDK51C99BA23365

Make:

FORD

Model:

FLEX

Year:

2009

US Patent:

6909285, Jun 21, 2005

Filed:

Sep 11, 2002

Appl. No.:

10/241101

Inventors:

Paul Thomas Jordan - Lincoln Park MI, US
John Harry Floros - Novi MI, US

Assignee:

Visteon Global Technologies, Inc. - Van Buren Township MI

International Classification:

F02P017/00

US Classification:

324382, 324418

Abstract:

A method for detecting failure of a relay operating in a vehicle having an ignition switch, a power supply, a capacitor, and a pre-charge circuit to pre-charge the capacitor with the relay switching power from the power supply to the pre-charged capacitor, the method comprising the steps of: performing a capacitor pre-charge test; and performing a capacitor discharge test. Preferably, the capacitor pre-charge test is performed when the ignition is switched ON and the capacitor discharge test is performed when the ignition is switched OFF.