Method for operating an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsGholamabas Esteghlal, Georg Mallebrein
Life of this patent
Estimating the term…
Abstract
The invention describes an internal combustion engine (1), in particular for a motor vehicle, in which fuel can be injected into a combustion chamber (4) in at least two operation types, and in which an air/fuel mixture can flow through a tank ventilation valve (17) and can be supplied to the combustion chamber (4). A control unit (18) can be used to determine a specific desired fuel rate for the air/fuel mixture flowing through the tank ventilation valve (17).
Claims13
A method for operating an internal combustion engine (1), in particular of a motor vehicle, in which fuel is injected into a combustion chamber (4) in at least two operation types, and in which an air/fuel mixture flows through a tank ventilation valve (17) and is supplied to the combustion chamber (4), characterized in that a specific desired fuel rate (fkastes) is determined for the air/fuel mixture flowing through the tank ventilation valve (17).
The method according to one of the preceding claims, characterized in that the specific desired fuel rate (fkastes) is limited to a maximal value (fkastex) for the specific fuel rate.
The method according to one of the preceding claims, characterized in that the specific desired fuel rate (fkastes) is converted into a maximal through flow factor (ftevflox) of the air/fuel mixture flowing through the tank ventilation valve (17)
The method according to one of the preceding claims, characterized in that a desired through flow factor (ftevflos) of the air/fuel mixture flowing through the tank ventilation valve (17) is generated and damped.
The method according to one of the preceding claims, characterized in that a desired mass flow (mstesoll) through the tank ventilation valve (17) is generated and damped.
A control unit (18) for an internal combustion engine (1), in particular of a motor vehicle, in which fuel can be injected into a combustion chamber (4) in at least two operation types, and in which an air/fuel mixture can flow through a tank ventilation valve (17) and can be supplied to the combustion chamber (4), characterized in that the control unit (18) can be used to determine a specific desired fuel rate (fkastes) for the air/fuel mixture flowing through the tank ventilation valve (17).
An internal combustion engine (1), in particular for a motor vehicle, in which fuel can be injected into a combustion chamber (4) in at least two operation types, and in which an air/fuel mixture can flow through a tank ventilation valve (17) and can be supplied to the combustion chamber (4), characterized in that a control unit (18) can be used to determine a specific desired fuel rate (fkastes) for the air/fuel mixture flowing through the tank ventilation valve (17).
Dependencies are inferred from the claim text.