Back to results
US 9,789,867 B2Granted
Method for learning the kisspoint of an engine clutch in a hybrid vehicle
AssigneeHyundai Motor Company
InventorsSung Deok Kim, Sang Joon Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method for learning a kisspoint of an engine clutch in a hybrid vehicle, which performs kisspoint learning of an engine clutch while driving by learning hydraulic pressure at the time when motor torque varies by gradually increasing clutch hydraulic pressure in an open state of the engine clutch when a driving load of a vehicle is constant to increase a kisspoint learning frequency of the engine clutch and improve kisspoint accuracy.
Claims6
A method for learning a kisspoint of an engine clutch in a hybrid vehicle, the method comprising:
- determining whether a kisspoint learning entrance condition is satisfied in order to determine whether kisspoint learning of the engine clutch is possible while driving a vehicle;
- and
- performing kisspoint detection for the kisspoint learning of the engine clutch while driving when it is determined that the kisspoint learning entrance condition is satisfied,
- wherein when determining whether the kisspoint learning entrance condition is satisfied, it is determined that the kisspoint learning entrance condition is satisfied when a kisspoint learning history of the engine clutch does not exist within a driving cycle of ignition-off after ignition-on of the vehicle, a driving load of the vehicle while driving is constantly maintained, and a battery SOC exists within a predetermined range.
1 more element
Dependencies are inferred from the claim text.