Method of obtaining desired manifold pressure for torque based engine control
AssigneeGM Global Technology Operations LLC
InventorsMichael Livshiz, Scott J. Chynoweth
Life of this patent
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Abstract
A torque control system for an engine includes a first module that estimates a first engine torque based on an air-per-cylinder (APC) value and a second module that estimates a second engine torque based on a manifold absolute pressure (MAP). A third module determines a desired MAP based on the first engine torque and the second engine torque. A throttle opening is regulated based on the desired MAP.
Claims23
A torque control system for an engine, comprising:
- a first module that estimates a first engine torque based on an air-per-cylinder (APC) value;
- a second module that estimates a second engine torque based on a manifold absolute pressure (MAP);
- and
- a third module that determines a desired MAP based on said first engine torque and said second engine torque, wherein a throttle opening is regulated based on said desired MAP.
A method of controlling a torque output an engine, comprising:
- estimating a first engine torque based on an air-per-cylinder (APC) value;
- estimating a second engine torque based on a manifold absolute pressure (MAP);
- and
- determining a desired MAP based on said first engine torque and said second engine torque, wherein a throttle opening is regulated based on said desired MAP.
A method of regulating air flow into and engine to control a torque output of the engine, comprising:
- estimating a first engine torque based on an air-per-cylinder (APC) value;
- calculating a reference torque;
- estimating a second engine torque based on a manifold absolute pressure (MAP) said reference torque and at least one engine load torque;
- and
- determining a desired MAP based on said first engine torque and said second engine torque, wherein a throttle opening is regulated based on said desired MAP.
Dependencies are inferred from the claim text.