초록 ▼

A clutch control method for a fluid torque converter of a vehiclar transmission which has a clutch for mechanically connecting the input and output sides of the fluid torque converter within a predetermined vehicular speed range by such a relatively low engaging force as to allow slippage of said cl

A clutch control method for a fluid torque converter of a vehiclar transmission which has a clutch for mechanically connecting the input and output sides of the fluid torque converter within a predetermined vehicular speed range by such a relatively low engaging force as to allow slippage of said clutch. The control method includes a step of determining that the throttle opening of the engine has been decreased at a rate higher than a predetermined value and to a value lower than a predetermined reference throttle opening, even if the vehicular speed is within said predetermined range for allowing clutch slippage, and then increasing the engaging force of said clutch to a value higher than that for said reference opening to provide vehicle braking by the engine.

대표청구항 ▼

A method for controlling a clutch in a fluid torque converter for a vehicular transmission of a vehicle, said torque converter connected on an input side to an engine having a throttle valve for controlling a throttle opening, and connected on an output side to an auxiliary transmission, said conver

A method for controlling a clutch in a fluid torque converter for a vehicular transmission of a vehicle, said torque converter connected on an input side to an engine having a throttle valve for controlling a throttle opening, and connected on an output side to an auxiliary transmission, said converter being provided with a clutch to which a high force is applied for positively connecting the input and output sides of said converter when the vehicle is operated above a predetermined speed range and to which a relatively low force is applied to allow slippage when the vehicle is operated within said predetermined speed range with the slippage varying inversely relative to the vehicle speed, the method comprising the steps of, determining the throttle opening and the rate of change of the throttle opening, and increasing the force applied to the clutch to a valve higher than the relatively low force applied for a given throttle opening for reducing slippage at that given throttle opening when the throttle opening is lower than a predetermined reference throttle opening and the throttle opening is decreasing at a rate higher than a predetermined rate value.