Engine idle speed control
AssigneeOrbital Engine Company (Australia) Pty. Limited
InventorStuart Graham Price
Life of this patent
Estimating the term…
Abstract
A method of controlling the idle speed of an internal combustion engine including, in response to the engine speed being below a predetermined level: determining the rate of change of the speed of the engine; selecting an idle entry set-point as a function of said rate; and initiating idle speed control of the engine on the basis of said idle entry set-point to thereby control the engine speed to a base idle speed.
Claims31
A method of controlling the idle speed of an internal combustion engine including, in response to the engine speed being below a predetermined level:
- determining the rate of change of the speed of the engine;
- selecting an idle entry set-point as a function of said rate;
- and
- initiating idle speed control of the engine on the basis of said idle entry set-point to thereby control the engine speed to a base idle speed.
An ECU adapted to control the idle speed of an internal combustion engine, including in response to the engine speed being below a predetermined level:
- determining the rate of change of the speed of the engine;
- selecting an idle entry set-point as a function of said rate;
- and
- initiating idle speed control of the engine on the basis of said idle entry set-point to thereby control the engine speed to a base idle speed.
Dependencies are inferred from the claim text.