Method and apparatus for adaptable control of a variable displacement engine
AssigneeGeneral Motors Corporation
InventorFrank Ament
Life of this patent
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Abstract
A control system for controlling the displacement of a variable displacement internal combustion engine including measuring a variable indicative of torque for the variable displacement internal combustion engine, generating a torque threshold that indicates a torque condition to vary the displacement of the variable displacement internal combustion engine, and characterizing driver behavior to determine the torque threshold.
Claims15
An engine control system in a vehicle comprising:
- a variable displacement internal combustion engine;
- a controller for controlling the displacement of said variable displacement internal combustion engine;
- an accelerator pedal position sensor electronically coupled to said controller;
- and
- wherein said controller receives pedal position information from said accelerator pedal position sensor and characterizes the type of driver operating the vehicle;
- wherein said controller using said driver characterization determines when to operate said variable displacement internal combustion engine in a partially-displaced operating mode.
A method of controlling the displacement of a variable displacement internal combustion engine in a vehicle comprising the steps of:
- determining manifold pressure in the variable displacement internal combustion engine;
- determining accelerator pedal position in the vehicle;
- characterizing driver behavior based on the changes in accelerator pedal position;
- determining a calibration of said manifold pressure based on the characterization of said behavior;
- and
- varying the displacement of the variable displacement internal combustion engine with reference to said calibration.
A method of controlling the displacement of a variable displacement internal combustion engine comprising the steps of:
- measuring a variable indicative of torque for the variable displacement internal combustion engine;
- generating a torque threshold that indicates a torque condition to vary the displacement of the variable displacement internal combustion engine;
- and
- characterizing driver behavior to determine said torque threshold.
A method of controlling the displacement of a variable displacement internal combustion engine comprising the steps of:
- measuring a variable indicative of torque for a variable displacement internal combustion engine;
- filtering said variable indicative of torque;
- generating a torque threshold that indicates a torque condition to vary the displacement of the variable displacement internal combustion engine;
- and
- characterizing driver behavior to determine said torque threshold.
Dependencies are inferred from the claim text.