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System and method for monitoring a performance characteristic using temperature and lubrication level of vehicle components

  • US 6,138,065 A
  • Filed: 01/06/1999
  • Issued: 10/24/2000
  • Est. Priority Date: 01/06/1999
  • Status: Expired due to Term
First Claim
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1. A system for monitoring the performance of at least one selected component of a vehicle using more than one monitored variable, comprising:

  • a first sensor supported on the vehicle that detects the temperature of the selected component;

    a second sensor supported on the vehicle that detects an amount of lubrication associated with the selected component; and

    an electronic controller in communication with the first and second sensors, the electronic controller determining a performance characteristic based upon the detected temperature and the detected amount of lubrication and determining whether the performance characteristic is within a predetermined first normal operation range and provides a signal indicating when either the detected temperature or the detected amount of lubrication causes the performance characteristic to be outside of the first range and within a second range outside of the first range or a third range outside of the first range, respectively.

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