| 摘要 |
A method and a system for controlling a launch of a hybrid vehicle are disclosed. The method comprises determining a desired magnitude of torque capacity of an input clutch 40, 41, determining a crankshaft speed error, determining a magnitude of a change in torque capacity of the input clutch 40, 41 that will reduce the crankshaft speed error and increasing the torque capacity of the input clutch 40, 41 to a desired torque capacity whose magnitude is determined by adding the current magnitude of torque capacity of the input clutch 40, 41 and said change in torque capacity of the input clutch 40, 41. The speed of the vehicle and accelerator pedal position are used to determine a vehicle propulsion demand. A desired slip across the input clutch 40, 41 may also be determined. The system is provided in the context of problems with prior art systems including engine stall, excessive clutch slip, dead pedal feel and inconsistent response. |
