Patent ID: 6889804
Filing Date: 2005-05-10
Classification: B60W,F16D

Abstract:
1. A clutch control method for controlling connection/disconnection of a clutch by changing a working fluid pressure for driving connection/disconnection of a wet friction clutch in accordance with a duty pulse outputted from an electronic control unit, said method comprising the steps of: initially outputting from the electronic control unit a prescribed start duty for largely connecting the clutch as far as a vicinity of a torque point when connecting the clutch from a disconnected stat; outputting from the electronic control unit at prescribed time intervals a prescribed gradual connection duty for gradually connecting the clutch; and determining on the basis of a clutch input/output side revolution difference a gradual connection duty value of each prescribed time interval; wherein said wet friction clutch is between the engine and the transmission and serially provided downstream of a fluid coupling capable of lockup, and said clutch input/output side revolution difference is determined based on the engine revolution number when the fluid coupling is locked up, and the transmission input shaft revolution number.