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Collision monitoring system

DC
  • US 7,548,037 B2
  • Filed: 03/18/2002
  • Issued: 06/16/2009
  • Est. Priority Date: 04/22/1992
  • Status: Expired due to Fees
First Claim
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1. A method for detecting the presence of an object caught between a closure and its respective frame of a power system comprising:

  • providing a closure for opening and closing via a regulator driven by an electric drive motor controlled by a control circuit;

    calculating a predicted variable parameter value utilizing a system equation, said system equation including a number of coefficients which are multiplied by a number of different parameter values measured over a period of time, such that said predicted variable parameter value for any one of a series of different times is based upon a plurality of measured parameter values measured over a period of time;

    sensing a variable parameter value of the power system during closing of the closure;

    comparing said sensed variable parameter value to a previously predicted variable parameter value based upon a presumption of how said predicted variable parameter value would behave without the presence of an object; and

    detecting an object caught between the closure and its respective frame based on the result of the compared parameter values.

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