| 摘要 |
<p>The present disclosure relates to a method and a system for learning and controlling a kiss-point of an engine clutch by sensing changes in engine torque and motor torque or changes in motor speed by gradually increasing engine clutch hydraulic in vicinity of a previous kiss-point while a relative speed between an engine and a motor under no-load condition is maintained at a constant value. An exemplary embodiment of this disclosure includes a step of determining whether power transmission transmitted from a transmission, which transmits an output from the engine and the motor is cut-off or not; a step of controlling the motor to maintain a motor speed setting different from the engine speed under the engine in operating condition and the power transmission of the transmission under cut-off condition; a step of detecting changes in motor conditions by increasing applied hydraulic of the engine clutch at a predetermined rate; and a step of calculating a kiss-point of the engine clutch on the basis of the changes in motor condition. [Reference numerals] (AA) Start; (BB,EE,GG) NO; (CC,II) End; (DD) YES (Entering the learning mode); (FF,HH) YES; (S100) Is the shift gear in P stage or N stage?; (S110) Control motor speed more than engine speed and speed of setting value; (S120) Does the motor speed reach to the control speed?; (S130) Measure and store the motor torque corresponding to the motor speed; (S140) Check changes in motor torque by applying step-wise type setting of hydraulic on the basis of initial setting of kiss-point hydraulic or previously learnt kiss-point hydraulic; (S150) Changes in motor torque >= setting value?; (S160) Set the hydraulic causing the changes in motor torque as a new kiss-point hydraulic</p> |
