Patent ID: 6564774
Filing Date: 2003-05-20
Classification: F02D

Abstract:
An engine control system for operating an industrial internal combustion engine at a relatively constant speed while driving a load, not withstanding load changes, by anticipating load change, said engine control system comprising:an engine control unit including a governor controlling an engine throttle; a feedback system responsive to said engine and supplying a first input to said engine control unit to enable said governor to attempt to maintain constant engine speed; and a system control unit for controlling said load and supplying a second input to said engine control unit, said first input being a feedback input responsive to engine speed change after such change, said second input being a feedforward input anticipating engine speed change before such change; wherein said system control unit has an input, and first and second outputs, said input of said system control unit being responsive to an operator command, said first output of said system control unit being supplied to said load and providing a load control signal thereto, said second output of said system control unit being supplied to said second input of said engine control unit and providing a feedforward load-coming signal thereto in anticipation of load change as controlled by said system control unit.