Feedforward engine control governing system
First Claim
1. In an engine control system for an industrial internal combustion engine driving a load and desired to run at constant speed as controlled by an engine control unit including a governor controlling an engine throttle through a control loop, a governing system for holding said engine at relatively constant speed, notwithstanding load changes, by anticipating load change with pre-set control loop modification.
10 Assignments
0 Petitions
Accused Products
Abstract
In an engine control system (10) for an industrial internal combustion engine (12) driving a load (14) and desired to run at constant speed as controlled by an engine control unit (16) including a governor controlling an engine throttle (18), a governing system is provided for holding the engine (12) at relatively constant speed, notwithstanding load changes, by anticipating load change with pre-set loop modification control.
27 Citations
17 Claims
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1. In an engine control system for an industrial internal combustion engine driving a load and desired to run at constant speed as controlled by an engine control unit including a governor controlling an engine throttle through a control loop, a governing system for holding said engine at relatively constant speed, notwithstanding load changes, by anticipating load change with pre-set control loop modification.
- 2. In an engine control system for an industrial internal combustion engine driving a load and desired to run at constant speed as controlled by an engine control unit including a governor controlling an engine throttle, a governing system for holding said engine at relatively constant speed, notwithstanding load changes, by anticipating load change, said governing system including 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 comprising 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.
- 9. A method for controlling an industrial internal combustion engine driving a load and desired to run at constant speed as controlled by an engine control unit including a governor controlling an engine throttle through a control loop, comprising holding said engine at relatively constant speed notwithstanding load changes by anticipating load change with pre-set control loop modification.
Specification