Cylinder and valve mode control for an engine with valves that may be deactivated
AssigneeFord Global Technologies, LLC
InventorsJohn O. Michelini, Donald J. Lewis
Life of this patent
Estimating the term…
Abstract
A method to select cylinder and valve operational modes in an internal combustion engine with valves that may be deactivated. A simplified method to select cylinder and valve modes is presented.
Claims22
A control method for selecting cylinder and valve actuation modes in an engine having at least a valve that may be deactivated, the method comprising:
- generating a set of available cylinder and valve modes;
- removing cylinder and valve modes from said available set of cylinder and valve modes, based on a group of operating conditions;
- determining a cylinder and a valve mode, from remaining active cylinder and valve modes, based on a second group of operating conditions.
A control method for selecting cylinder and valve actuation modes in an engine having at least an electromechanical valve, the method comprising:
- generating a set of available cylinder and valve modes;
- organizing said set of available cylinder and valve modes based on available engine torque of said engine operating in said available cylinder and valve modes;
- removing cylinder and valve modes from said set of cylinder and valve modes, based on a group of operating conditions, in order of said available engine torque;
- determining a cylinder and a valve mode from remaining active cylinder and valve modes of said set of cylinder and valve modes, based on a second group of operating conditions;
- and
- operating said engine in said determined cylinder and valve mode.
A computer readable storage medium having stored data representing instructions executable by a computer to control an internal combustion engine of a vehicle, said storage medium comprising:
- instructions for generating a set of available cylinder and valve modes;
- removing cylinder and valve modes from said set of cylinder and valve modes, based on a group of operating conditions;
- and
- determining a cylinder and a valve mode, from remaining active cylinder and valve modes, based on a second group of operating conditions.
Dependencies are inferred from the claim text.