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Apparatus, system and method for magnetorheological clutch diagnostics

  • US 7,302,329 B2
  • Filed: 04/14/2005
  • Issued: 11/27/2007
  • Est. Priority Date: 04/14/2005
  • Status: Active Grant
First Claim
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1. A controller for monitoring and diagnosing the coil temperature of a magnetorheological (MR) clutch connected to a power steering pump of a vehicle, the controller comprising:

  • 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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