Apparatus for controlling a speed change gear

In an apparatus for automatically controlling a gear shift operation having first and second actuators for moving a gear lever connected with a speed change gear in first and second directions through gear shift passages to desired gear shift positions, said passages having defined widths and lengths for the movement of said gear lever, a memory for storing data on desired gear shift positions in said passages, first and second sensors for producing first and second position signals which indicate the actual position in said first and second directions of the gear lever in said passages, and computer means for receiving said first and second position signals, said data on desired gear shift positions, and an input gear shift command signal indicating a desired gear shift position to which the gear lever is to be moved, and for providing movement control signals to said first and second actuators for moving said gear lever to the desired gear shift position,

• the improvement comprising said computer means having an updating program for storing updated data in said memory on said desired gear shift positions in said passages to allow optimum movement of said gear lever in said passages based upon said updated data, said updating program including a first part for providing control signals for moving said gear lever across the lengths or widths of said passages and obtaining position signals from said sensors indicative of the length or width positions of the passages, and a second part for updating the data stored in said memory on the basis of said obtained position signals.