Determining manifold pressure based on engine torque control
AssigneeGeneral Motors Corporation
InventorsGregory P. Matthews, Michael Livshiz
Life of this patent
Estimating the term…
Abstract
A torque control system for an engine includes a throttle plate having an adjustable throttle position to regulate a first mass air flow into the engine. A control module determines a first mass air flow into the engine and monitors an engine speed. The control module calculates a volumetric efficiency of the engine based on the first mass air flow and the engine speed and calculates the desired MAP based on the volumetric efficiency.
Claims25
A torque control system for an engine, comprising:
- a throttle plate having an adjustable throttle position to regulate a first mass air flow into said engine;
- and
- a control module that determines a first mass air flow into said engine, that monitors an engine speed, that calculates a volumetric efficiency of said engine based on said first mass air flow and said engine speed and that calculates said desired MAP based on said volumetric efficiency.
A method of determining a desired manifold absolute pressure (MAP) based on an engine torque request of an engine, comprising:
- determining a first mass air flow into said engine;
- monitoring an engine speed;
- calculating a volumetric efficiency of said engine based on said first mass air flow and said engine speed;
- and
- calculating said desired MAP based on said volumetric efficiency.
A method of determining a throttle position, comprising:
- determining a first mass air flow into said engine;
- monitoring an engine speed;
- calculating a volumetric efficiency of said engine based on said first mass air flow and said engine speed;
- calculating said desired MAP based on said volumetric efficiency;
- and
- calculating said throttle position based on said desired MAP.
Dependencies are inferred from the claim text.