Jeffrey Robert Dec

US Patent:

20090076679, Mar 19, 2009

Filed:

Sep 13, 2007

Appl. No.:

11/854564

Inventors:

Ryan D. Martini - Royal Oak MI, US
Charles J. Van Horn - Novi MI, US
Peter E. Wu - Brighton MI, US
Andrew M. Zettel - Ann Arbor MI, US
Rezaul Karim - Canton MI, US
Jeffrey R. Dec - Ann Arbor MI, US
Sailaja Paladugu - Novi MI, US

International Classification:

G06F 19/00

US Classification:

701 34

Abstract:

There is provided a method to monitor a sensing system adapted to monitor an output of an electro-mechanical transmission. This includes monitoring rotational speed of a wheel operatively connected to a driveline operatively connected to the output of the electro-mechanical transmission. A first expected output of the transmission is determined based upon the output of the first sensor. A second expected output of the transmission is determined based upon a rotational speed of a torque-generative device operatively connected to the transmission. The first and second expected outputs and an output of the sensing system adapted to monitor the output of the electro-mechanical transmission are compared.