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Method for monitoring a work vehicle suspension

  • US 4,744,239 A
  • Filed: 11/28/1986
  • Issued: 05/17/1988
  • Est. Priority Date: 11/28/1986
  • Status: Expired due to Term
First Claim
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1. A method for detecting a collapsed strut of a work vehicle having a plurality of left and right strut mounted wheels, comprising:

  • periodically sensing the internal pressure of each of the struts and delivering a plurality of first signals each having a magnitude correlative to the internal pressure of each respective strut;

    calculating ratios of the first signals of selected pairs of the struts;

    comparing the magnitude of each of the ratios to an upper and lower setpoint and delivering a second signal in response to at least one of the ratios being outside the upper and lower setpoints; and

    delivering a third signal indicative of a collapsed strut in response to receiving the second signal.

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