Clutch torque control method for DCT vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSung Hyun Cho, Joung Chul Kim
Life of this patent
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Abstract
A clutch torque control method for a dual clutch transmission (DCT) vehicle may include a shift initiation determining step of determining whether power-on downshift in which a driver steps on an accelerator pedal to change a current shift stage to a lower shift stage is initiated, and a torque correcting step of correcting basic control torque according to torque-stroke (TS) curve characteristics for controlling a disengagement-side clutch within a real shift range in which a number of rotations of an engine is changed with observer torque calculated by a torque observer when the power-on downshift is initiated, and determining the corrected basic control torque into control torque of the disengagement-side clutch.
Claims9
A clutch torque control method for a dual clutch transmission (DCT) vehicle comprising:
- a shift initiation determining step of determining whether power-on downshift in which a driver steps on an accelerator pedal to change a current shift stage to a lower shift stage is initiated;
- and
- a torque correcting step of correcting basic control torque according to torque-stroke (TS) curve characteristics for controlling a disengagement-side clutch within a real shift range in which a number of rotations of an engine is changed with observer torque calculated by a torque observer when the power-on downshift is initiated, and converting the corrected basic control torque into control torque of the disengagement-side clutch.
Dependencies are inferred from the claim text.