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:
Sep. 08, 2009
Filed:
Oct. 11, 2006
Sean S. Clarke, Royal Oak, MI (US);
Ronald J. Wiegand, Shelby Township, MI (US);
Gery J. Kissel, Northville, MI (US);
Jeffrey Johnson, Clarkston, MI (US);
Ronald W. Young, Whittier, CA (US);
James E. Tarchinski, Rochester Hills, MI (US);
Paul E. Boskovitch, Shelby Township, MI (US);
Sean S. Clarke, Royal Oak, MI (US);
Ronald J. Wiegand, Shelby Township, MI (US);
Gery J. Kissel, Northville, MI (US);
Jeffrey Johnson, Clarkston, MI (US);
Ronald W. Young, Whittier, CA (US);
James E. Tarchinski, Rochester Hills, MI (US);
Paul E. Boskovitch, Shelby Township, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A connection monitoring system and method for a vehicle high voltage energy storage system is disclosed. The method performs a check, at initial connection of the high voltage energy storage system, to insure that the vehicle high voltage wiring system is fully connected and without short circuits prior to allowing full current to the vehicle and normal vehicle operation. The method switches in a resistor to limit current flow between the high voltage energy storage system and the vehicle high voltage wiring, and measures the voltage and a voltage rise time across the resistor. The voltage and the voltage rise time across the resistor are used to determine if a short circuit is present, and if so the high voltage energy storage system is disconnected to protect the vehicle and its users.