TORQUE BASED AIR PER CYLINDER AND VOLUMETRIC EFFICIENCY DETERMINATION
First Claim
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1. A method of regulating operation of an internal combustion engine, comprising:
- monitoring a manifold absolute pressure (MAP) of said engine;
determining an engine torque based on said MAP;
estimating an air per cylinder (APC) based on said torque;
determining a volumetric efficiency of said engine based on said APC; and
regulating operation of said engine based on said volumetric efficiency.
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Abstract
A method of regulating operation of an internal combustion engine includes monitoring a manifold absolute pressure (MAP) of the engine, determining an engine torque based on the MAP, estimating an air per cylinder (APC) based on the torque, determining a volumetric efficiency of the engine based on the APC and regulating operation of the engine based on the volumetric efficiency.
42 Citations
20 Claims
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1. A method of regulating operation of an internal combustion engine, comprising:
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monitoring a manifold absolute pressure (MAP) of said engine; determining an engine torque based on said MAP; estimating an air per cylinder (APC) based on said torque; determining a volumetric efficiency of said engine based on said APC; and regulating operation of said engine based on said volumetric efficiency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for regulating operation of an internal combustion engine, comprising:
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a first module that determines an engine torque based on a manifold absolute pressure (MAP) of said engine; a second module that estimates an air per cylinder (APC) based on said torque; a third module that determines a volumetric efficiency of said engine based on said APC; and a fourth module that regulates operation of said engine based on said volumetric efficiency. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of regulating operation of an internal combustion engine, comprising:
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monitoring a manifold absolute pressure (MAP), an actual air per cylinder (APC) and an intake air temperature of said engine; calculating an engine torque based on said MAP by processing said MAP through a MAP-based torque model; calculating an estimated APC based on said torque by processing said engine torque through an inverted APC-based torque model; determining a volumetric efficiency of said engine based on said estimated APC; and regulating operation of said engine based on said volumetric efficiency. - View Dependent Claims (17, 18, 19, 20)
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Specification