Method for monitoring the operation of an internal combustion engine, control device designed to carry out a method of this type, and internal combustion engine having a control device of this type
AssigneeRolls-Royce Solutions GmbH
InventorAron Toth
Life of this patent
Estimating the term…
Abstract
A method for monitoring an operation of an internal combustion engine includes the steps of: detecting, during the operation of the internal combustion engine, an acoustic signal, at least partially, during a closing process of a gas exchange valve of the internal combustion engine; evaluating, based on the acoustic signal which is detected, at least one functional state of the internal combustion engine; and selecting the at least one functional state of the internal combustion engine from a group consisting of a state of the gas exchange valve and a state of a structure-borne noise sensor used to detect the acoustic signal.
Claims17
A method for monitoring an operation of an internal combustion engine, the method comprising the steps of:
- detecting, during the operation of the internal combustion engine, an acoustic signal, at least partially, during a closing process of a gas exchange valve of the internal combustion engine;
- evaluating, based on the acoustic signal which is detected, at least one functional state of the internal combustion engine;
- and
- selecting the at least one functional state of the internal combustion engine from a group consisting of a state of the gas exchange valve and a state of a structure-borne noise sensor used to detect the acoustic signal.
A control device for an internal combustion engine, the control device comprising:
- the control device, which is configured for carrying out a method for monitoring an operation of an internal combustion engine, the method including the steps of:
- detecting, during the operation of the internal combustion engine, an acoustic signal, at least partially, during a closing process of a gas exchange valve of the internal combustion engine;
- evaluating, based on the acoustic signal which is detected, at least one functional state of the internal combustion engine;
- and
- selecting the at least one functional state of the internal combustion engine from a group consisting of a state of the gas exchange valve and a state of a structure-borne noise sensor used to detect the acoustic signal.
An internal combustion engine, comprising:
- a gas exchange valve;
- at least one combustion chamber, to which the gas exchange valve is assigned;
- at least one structure-borne noise sensor assigned to the at least one combustion chamber;
- a control device, which is configured for carrying out a method for monitoring an operation of the internal combustion engine, the method including the steps of:
- detecting, during the operation of the internal combustion engine, an acoustic signal, at least partially, during a closing process of the gas exchange valve of the internal combustion engine;
- evaluating, based on the acoustic signal which is detected, at least one functional state of the internal combustion engine;
- and
- selecting the at least one functional state of the internal combustion engine from a group consisting of a state of the gas exchange valve and a state of the at least one structure-borne noise sensor used to detect the acoustic signal,
- the control device being operatively connected with the at least one structure-borne noise sensor.
Dependencies are inferred from the claim text.