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.

Date of Patent:
Sep. 16, 2008

Filed:

Jun. 29, 2006
Applicants:

Christophe Soudier, Ypsilanti, MI (US);

Bing Cheng, West Bloomfield, MI (US);

Steven J. Kowalec, Plymouth, MI (US);

Venkatapathi R. Nallapa, West Bloomfield, MI (US);

Richard J. Hampo, Plymouth, MI (US);

Inventors:

Christophe Soudier, Ypsilanti, MI (US);

Bing Cheng, West Bloomfield, MI (US);

Steven J. Kowalec, Plymouth, MI (US);

Venkatapathi R. Nallapa, West Bloomfield, MI (US);

Richard J. Hampo, Plymouth, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control system, method and article allows a monitoring module to monitor operation of a main controller in an electric drive, by providing questions and evaluating the accuracy and/or timeliness of responses from the main controller. Upon detection of an excessive number of incorrect or late responses, the monitoring module can shutdown operation, and may provide an alternative communications path, thereby preventing corrupt data from reaching a vehicle network, while providing communications for diagnostic and recovery such as by provision of new software or firmware instructions. The main controller may monitor the operation of the monitoring module, taking appropriate action if a fault is detected. Disabling a supply of power to a traction motor may be based on current operating conditions, such as speed.


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