Method for preventing burst of clutch for vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJin Sung KIM, Dong Hyup KANG
Life of this patent
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Abstract
The present disclosure relates to a technique of suppressing the occurrence of an impact caused by clutch engagement by differently controlling a clutch depending on whether or not a brake is in operation. Disclosed is a method of controlling a clutch for a vehicle, which effectively reduces engagement impact that occurs when the clutch is engaged by performing control such that a rising slope of clutch torque up to a touch point is gentler when the brake is not in operation than when the brake is in operation.
Claims8
A method of controlling a clutch for a vehicle, the method comprising:
- a standby control step in which a controller controls clutch torque to instantaneously rise to standby torque corresponding to a touch point-standby position prior to a clutch touch point when a gear lever is shifted from a neutral position to a driving position;
- and
- a torque control step in which the controller, after the standby control step, controls the clutch torque to rise to follow the clutch target torque while passing through a clutch touch point, wherein a rising slope of the clutch torque varies depending on whether or not a brake is in operation.
A method for controlling a clutch for a vehicle, the method comprising:
- a standby control step in which a controller controls clutch torque to instantaneously rise to standby torque corresponding to a touch point-standby position prior to a clutch touch point when a gear lever is shifted from a neutral position to a driving position;
- a brake determination step in which the controller determines whether or not a brake is in operation;
- and
- a first torque control step in which the controller controls the clutch torque to rise to follow clutch target torque determined by brake operating pressure when it is determined that the brake is in operation.
A method for controlling a clutch for a vehicle, the method comprising:
- a standby control step in which a controller controls clutch torque to instantaneously rise to standby torque corresponding to a touch point-standby position prior to a clutch touch point when a gear lever is shifted from a neutral position to a driving position;
- a brake determination step in which the controller determines whether or not a brake is in operation;
- a 2-1st torque control step of determining threshold torque passing through the touch point as first clutch target torque and of controlling the clutch torque to rise to follow the first clutch target torque when it is determined that the brake is not in operation;
- and
- a 2-2nd torque control step of determining creep target torque as second clutch target torque and of controlling the clutch torque to rise to follow the second clutch target torque after the 2-1st torque control step.
Dependencies are inferred from the claim text.