Abstract: In an apparatus for operating the change lever of the speed change gear on the basis of the data concerning the passage for a change lever, the apparatus comprises a memory for storing the data, and a computer for obtaining detection signals corresponding to the opposite side positions of the passage by moving the change lever between the opposite sides at any desired portion within the passage, for updating the data stored in the memory on the basis of the detection signals and for computing the optimum moving path for the change lever on the basis of the updated data stored in the memory. Thus, the optimum moving path of the change lever can be automatically determined by the learning function, so that maintenance, inspection and the like can be remarkably simplified. Furthermore, it is possible to move the change lever smoothly to the desired gear shift position.

Abstract: A positioning apparatus using a hydraulic actuator. For positioning an object to the desired position with high accuracy, the apparatus has means for computing the position at which the operation for stopping the operation of the hydraulic actuator is to be carried out in order to position the object at the desired position. The operation of the hydraulic cylinder is rendered to stop when the position has reached the computed position, whereby to enable the object to accurately position at the desired position at relatively high speed.