| 摘要 |
PROBLEM TO BE SOLVED: To prevent control delay of a lock-up clutch by obtaining the weighted average value of input shaft torque and engine torque according to a weighting factor when the variation of engine torque is the specified value or more, and controlling the locking capacity of the lock-up clutch on the basis of the weighted average value. SOLUTION: During the operation of an engine, in a lock-up clutch control device 20, an input shaft torque computing means 21 computes input shaft torque from actual load of engine speed and engine intake negative pressure, and an engine torque computing means 22 computes engine torque from predicted load of engine speed and throttle opening. A weighted average value computing means 23 computes the variation from engine torque, computes a weighting factor when the variation is the specified value or more, and computes the weighted average value of input shaft torque and engine torque according to the weighting factor. A control means 24 controls the locking capacity of a lock-up clutch on the basis of one of the weighted average value and input shaft torque. |
