Control system and method for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYukio Kobayashi
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Abstract
A control system for an internal combustion engine that performs learning of a throttle opening degree during idle operation, at which a target idle speed can be obtained, the control system comprising a control section that is configured to use a first learned value and a second learned value as learned values of the throttle opening degree during idle operation and to update the first learned value when a state of combustion is not deteriorated, and update the second learned value when the state of combustion is deteriorated.
Claims14
A control system for an internal combustion engine that performs learning of a throttle opening degree during idle operation, at which a target idle speed can be obtained, the control system comprising
- a control section that is configured to use a first learned value and a second learned value as learned values of the throttle opening degree during idle operation and to update the first learned value when a state of combustion is not deteriorated, and update the second learned value when the state of combustion is deteriorated.
A control method for an internal combustion engine that performs learning of a throttle opening degree during idle operation, at which a target idle speed can be obtained, the control method comprising;
- using a first learned value and a second learned value as learned values of the throttle opening degree during idle operation;
- updating the first learned value when a state of combustion is not deteriorated;
- and
- updating the second learned value when the state of combustion is deteriorated.
Dependencies are inferred from the claim text.