Displacement on demand torque smoothing using engine speed control
OwnerJeffrey James Allen, Thomas Eugene Bolanderinventors
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Abstract
An engine control system in a vehicle including a variable displacement internal combustion engine, a speed sensor for detecting the speed of the variable displacement internal combustion engine, a controller for controlling the displacement of the variable displacement internal combustion engine, and where the controller varies the spark timing of the variable displacement engine based upon the detected speed during changes in the displacement of the variable displacement internal combustion engine.
Claims11
An engine control system in a vehicle comprising:
- a variable displacement internal combustion engine;
- a speed sensor for detecting the speed of said variable displacement internal combustion engine;
- a controller for controlling the displacement of said variable displacement internal combustion engine;
- and
- wherein said controller varies the spark timing of said variable displacement engine based upon the detected speed during changes in the displacement of said variable displacement internal combustion engine.
A method of controlling the torque of a variable displacement internal combustion engine comprising the steps of:
- detecting the speed of the variable displacement internal combustion engine;
- and
- varying the spark timing of the variable displacement internal combustion engine during displacement changes.
A method of controlling the torque output of a variable displacement internal combustion engine comprising:
- detecting the speed of the variable displacement internal combustion engine;
- and
- controlling the engine speed of the variable displacement internal combustion engine based upon the detected engine speed during displacement changes of the variable displacement internal combustion engine.
Dependencies are inferred from the claim text.