Combustion abnormality monitoring device for two-stroke engine
AssigneeKawasaki Motors, Ltd.
InventorsHayato Shimozono, Toshiyuki Moritake, Tomotaka Nakagawa
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Abstract
A combustion abnormality monitoring device for a two-stroke engine includes: a detection unit configured to detect combustion abnormality that is in-cylinder combustion triggered at a timing different from the timing of ignition; and a control unit configured to control the condition inside the cylinder when the detection unit detects combustion abnormality.
Claims19
A combustion abnormality monitoring device for a two-stroke engine, the two-stroke engine including a cylinder, a piston, a scavenging port on an inner peripheral surface of the cylinder and communicating with a crank chamber, and an exhaust port on the inner peripheral surface of the cylinder and communicating with an exhaust pipe, the scavenging port to be opened and closed by a reciprocating motion of the piston, the combustion abnormality monitoring device comprising:
- a detection unit configured to detect a combustion abnormality in a form of in-cylinder combustion triggered at a timing different from a timing of ignition;
- and
- a control unit configured to control a condition inside the cylinder when the detection unit detects the combustion abnormality so as to reduce a frequency at which the combustion abnormality occurs by controlling an exhaust device to adjust an amount of opening of the exhaust port.
A combustion abnormality monitoring device for a two-stroke engine, the two-stroke engine including a cylinder, a piston, a scavenging port on an inner peripheral surface of the cylinder and communicating with a crank chamber, and an exhaust port on the inner peripheral surface of the cylinder and communicating with an exhaust pipe, the scavenging port to be opened and closed by a reciprocating motion of the piston, the combustion abnormality monitoring device comprising:
- a detection unit configured to detect a combustion abnormality in a form of in-cylinder combustion triggered at a timing different from a timing of ignition;
- a storage unit configured to store a detection result of the combustion abnormality detected by the detection unit;
- and
- a transmission unit configured to transmit to an external device the detection result of the combustion abnormality stored in the storage unit,
- wherein the detection result includes information related to a relationship between an engine rotation speed, a throttle opening, and the combustion abnormality of the two-stroke engine.
A combustion abnormality monitoring device for a two-stroke engine, the two-stroke engine including a cylinder, a piston, a scavenging port on an inner peripheral surface of the cylinder and communicating with a crank chamber, and an exhaust port on the inner peripheral surface of the cylinder and communicating with an exhaust pipe, the scavenging port to be opened and closed by a reciprocating motion of the piston, the combustion abnormality monitoring device comprising:
- a storage unit configured to store big data comprising an accumulation of a plurality of pieces of data related to a relationship between operation information of the two-stroke engine and history information of a failure and maintenance of an engine component, the failure and the maintenance being based on a combustion abnormality in a form of in-cylinder combustion triggered at a timing different from a timing of ignition;
- and
- a prediction unit configured to predict information of the failure and the maintenance of the engine component from the operation information of the two-stroke engine, based on the big data stored in the storage unit,
- wherein the operating information of the two-stroke engine includes environmental information of the two-stroke engine and running information of the two-stroke engine.
Dependencies are inferred from the claim text.