Patent ID: 9573440
Date: 2017-02-21
CPC Classifications: B60H,B60P,F02D

Claim:
1. A method for calibrating an engine throttle position sensor during operation of a refrigeration system powered by a fuel fired engine, comprising: monitoring, at a refrigeration unit controller, a current sensed engine operating RPM and a current sensed engine throttle position signal; the refrigeration unit controller gradually increasing a load imposed by the refrigeration system on the fuel-fired engine; the refrigeration unit controller determining when the current engine operating RPM has drooped to a preset RPM calibration limit; the refrigeration unit controller defining the current sensed engine throttle position signal sensed coincident with the sensed engine operating RPM when the engine operating RPM has drooped to the preset RPM calibration limit as a recalibrated engine throttle position signal indicative of an engine throttle position of 100%; and applying the recalibrated engine throttle position signal indicative of an engine throttle position of 100%.