Method and device for learning engine clutch kiss point of hybrid vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorDo Hee Kim
Life of this patent
Estimating the term…
Abstract
A method for learning engine clutch kiss point of a hybrid vehicle is provided. The method includes adjusting a speed of a driving motor to be reduced when a deceleration event is generated in front of the hybrid vehicle and adjusting a speed of an engine to be synchronized with the speed of the driving motor. An engine clutch that connects the engine with the driving motor or disconnects the engine from the driving motor is engaged to start and then a kiss point of the engine clutch is learned by detecting the kiss point that is generated when the engine clutch is in a slip state.
Claims11
A method for learning engine clutch kiss point of a hybrid vehicle, comprising:
- adjusting, by a controller, a speed of a driving motor to be reduced when a deceleration event is generated in front of the hybrid vehicle;
- increasing by the controller, a speed of an engine to be synchronized with the speed of the driving motor using a starter-generator after the speed of the driving motor is adjusted to be reduced;
- engaging, by the controller, an engine clutch that connects the engine with the driving motor or disconnects the engine from the driving motor to start when the speed of the engine is synchronized with the speed of the driving motor;
- and
- learning, by the controller, a kiss point of the engine clutch by detecting the kiss point generated when the engine clutch is in a slip state.
A device for learning engine clutch kiss point of a hybrid vehicle, the device comprising:
- an engine clutch configured to connect an engine with a driving motor or disconnect the engine from the driving motor;
- and
- a controller configured to adjust a speed of the driving motor to be reduced when a deceleration event is generated in front of the hybrid vehicle,
- wherein the controller is configured to increase a speed of an engine to be synchronized with the speed of the driving motor using a starter-generator after the speed of the driving motor is adjusted to be reduced, engage the engine clutch to start when the speed of the engine is synchronized with the speed of the driving motor, and learn a kiss point of the engine clutch by detecting the kiss point generated when the engine clutch is in a slip state.
Dependencies are inferred from the claim text.