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Controller method, apparatus and article suitable for electric drive

  • US 20070016340A1
  • Filed: 06/29/2006
  • Published: 01/18/2007
  • Est. Priority Date: 06/30/2005
  • Status: Active Grant
First Claim
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1. A control system to control an electric drive, the control system comprising:

  • a main controller operable to execute instructions including the computation of a value based on at least one parameter; and

    a monitoring module operable to provide queries from time-to-time to the main controller, operable to evaluate an accuracy of an answer to a query returned to the monitoring module by the main controller, and operable to execute a protective state entry procedure in response to a determination that a number of answers returned by the main controller that are determined to be incorrect exceeds a threshold value.

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