A transmission control apparatus

摘要

A control apparatus for a transmission that links an input member for reception of rotative drive force to a gear element of a planetary gear set including three gears, an output member to another gear element of the same planetary gear set and a rotary member to the other gear of the same planetary gear set, wherein a brake 10 causes the rotary member and a stationary member to be engaged with and disengaged from each other while a clutch 30 causes the input member and the output member to be engaged with and disengaged from each other, and that comprises a first speed range wherein the brake 10 is engaged while the clutch 30 is disengaged and a second speed range wherein the clutch 30 is engaged; and wherein a gear change predicting means 56 for predicting speed change between the first speed range and the second speed range is involved and brake control means 58 and 59 for control of the brake 10 cause the brake 10 to be engaged before operation of the clutch 30 when the gear change predicting means 56 predicts a speed change.