Patent ID: 9463681
Filing Date: 2016-10-11
CPC Classification: B60H,F02D

Claim Text:
1. A real-time engine load control system for a transport refrigeration system of a refrigerated transport unit comprising: an engine control unit of an electronically controlled engine configured to provide power to the transport refrigeration system, wherein the engine control unit is programmed to control the electronically controlled engine; and a transport refrigeration system controller connected to the engine control unit, the transport refrigeration system controller being programmed to obtain real-time transport refrigeration system information and being programmed to regulate operating conditions within the refrigerated transport unit, wherein the engine control unit is programmed to send real-time engine load information to the transport refrigeration system controller, the transport refrigeration system controller is programmed to compute a load control parameter for controlling a system load of the transport refrigeration system based on at least one of the real-time transport refrigeration system information and the realtime engine load information, wherein the transport refrigeration system controller includes: wherein the temperature control and transport refrigeration system protection component is programmed to adjust a maximum engine control limit of the electronically controlled engine based on at least one of an altitude of the refrigerated transport unit, an ambient temperature surrounding the refrigerated transport unit, a current engine operating speed, a target engine coolant temperature required by the electronically controlled engine, and a target suction pressure required by a compressor of the transport refrigeration system, and wherein the temperature control and transport refrigeration system protection component is programmed to limit the electronic throttle valve control command such that a load on the electronically controlled engine prevents the electronically controlled engine operating past the adjusted maximum engine control limit when the load on the electronically controlled engine exceeds the adjusted maximum engine control limit.