| 摘要 |
The invention relates to a method and system for controlling creep in an automatic transmission, comprising a first creep torque control means (200) which, upon generation of an accelerator- (30) and brake-pedal (29) undepressed state in a running mode, generates a target creep speed, the target creep speed increasing as a function of time and settling to a predetermined value, the first creep torque control means (200) then calculating a creep torque from the target creep speed, detecting a change in vehicle load from a speed deviation, correcting a target creep torque on the basis of the detected change in vehicle load, and controlling the engine torque on the basis of the correction, and a second creep torque control means (300) which controls a transfer torque of a starting clutch (a first friction clutch) (5) on the basis of a slipping speed of the starting clutch (5) and the target creep torque, the creep controlling method and system being able to realize a stable creep running even against a change in running environment such as the existence of a slope or an increase of payload while suppressing wear and heat generation of the friction clutch (5). |
