METHOD AND DEVICE FOR CONTROLLING A GEAR SHIFT ACTUATOR WITH SLIDING GEARS DURING THE DISENGAGEMENT OF A GEAR

Method for controlling a gear shift actuator with sliding gears to disengage a gear by releasing the teeth (2) of a sliding gear (1) from those of a first speed gear (12) so as to position said sliding gear in neutral, wherein a motor (4) displaces a control fork (8) of the sliding gear towards the neutral region thereof in cooperation with a spring-assisted mechanism (9) which releases energy on the sliding gear during displacement which is capable of projecting the latter in an uncontrolled manner beyond the neutral region thereof towards a second speed gear (13), opposite the first (12), on the same line, characterised in that the actuator is controlled as a function of a fork position request (8), ensuring the gear is disengaged without allowing it to deviate from the actual position of the fork (8) during the displacement thereof.