| abstract |
A driving force control method for an engine clutch slip of a TMED HEV is provided, which may include: an engine 10 and a second electric motor 50, a first electric motor 30 provided on the transmission side, an engine clutch 20 interposed between the engine 10 and the first electric motor 30, and a multiple clutch transmission 35 connected with an output of the first electric motor 30. The method includes verifying whether control to maintain a target speed of the engine is achieved through engine feedback control or second motor torque feedback control, and applying clutch pressure for clutch slip using hydraulic pressure. Clutch slip is estimated to transmit torque when clutch pressure is applied. The engine clutch torque equal to the pressure acts as the load. A releasable limit torque of the second motor, an assist torque of the second motor, and an engine torque are calculated, and then slip control is executed. |