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Operation of transport refrigeration systems to prevent engine stall and overload

  • US 9,499,027 B2
  • Filed: 09/20/2011
  • Issued: 11/22/2016
  • Est. Priority Date: 09/28/2010
  • Status: Active Grant
First Claim
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1. A method for optimizing the performance of a transport refrigeration system having a transport refrigeration unit powered by a diesel engine, comprising matching a capacity output of the transport refrigeration unit to an available shaft power of the diesel engine;

  • the method further comprising;

    monitoring an operating engine load of the diesel engine;

    monitoring an operating engine speed of the diesel engine;

    operating the transport refrigeration system at the capacity output necessary to meet a current refrigeration demand load so as long as both the operating engine load of the diesel engine is not at 100% and the operating speed of the diesel engine is at least 98% of a target engine operating speed; and

    reducing the cooling capacity output of the refrigeration unit when the operating engine load of the diesel engine is greater than 90% and an operating speed of the diesel engine is less than 98% of a target engine operating speed.

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