| abstract |
The present invention relates to a driving force control method for an engine clutch slip of a TMED HEV, which comprises an engine 10 having a second motor 50 as a hybrid starter generator (HSG), a first motor 30, an engine clutch 20 interposed between the engine 10 and the first motor 30, and a multi-speed transmission 35 connected with an output end of the first motor 30, (S1) of confirming whether the control for maintaining the target speed is based on the engine feedback control or the second motor torque feedback control, and a step (S1) for applying clutch pressure for clutch slip to the hydraulic pressure by the vehicle controller Estimating a clutch slip transmission torque T - clutch in which the torque of the engine clutch corresponding to the clutch pressure acts as a load when applying the clutch pressure in steps S3 and S10 and S4 and S10 , S11), the second motor dischargeable limit torque (T - hsgDch) the (S6, S13) for calculating the second motor assist torque and the engine torque, and steps (S7, S14) for executing the slip control, The engine torque (Te) is significantly lowered by torque assist by the second motor in the behavior of the engine when the behavior or engine clutch transmission torque learning is learned, and the NVH is improved when the engine is operated. |