Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2007-11-27
2007-11-27
Camby, Richard M. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C701S041000
Reexamination Certificate
active
11106116
ABSTRACT:
An apparatus and method for monitoring and diagnosing the coil temperature of a magnetorheological (MR) clutch connected to a power steering pump of a vehicle is disclosed. The apparatus includes a processing circuit, and a storage medium, readable by the processing circuit, for storing instructions for execution by the processing circuit for receiving a plurality of input signals representative of dynamic operating conditions relating to the vehicle, using the input signals to generate an output signal representative of a temperature of the coil of the MR clutch, determining from the output signal whether the temperature of the coil exceeds a threshold limit, and in response to the temperature of the coil exceeding a threshold limit, triggering at least one of a remedial action and a data storage algorithm.
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patent: 7051834 (2006-05-01), Fujita
patent: 7143862 (2006-12-01), Knoff et al.
patent: 7163080 (2007-01-01), Fardoun et al.
patent: 2004/0194459 (2004-10-01), Namuduri
McDonald Mike M.
Namuduri Chandra S.
Camby Richard M.
GM Global Technology Operations Inc.
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