| 摘要 |
The present invention relates to a method to control neutrality of a synchronizer, which can place a sleeve of the synchronizer precisely on the neutral position when controlling neutrality of the synchronizer. According to the present invention, the method to control neutrality of a synchronizer comprises: a step of first movement to move a sleeve in a direction by a shift unit until the sleeve comes in contact with a first stopper of a first clutch gear; a step of second movement to move the sleeve in another direction by the shift unit until the sleeve comes in contact with a second stopper of a second clutch gear; and a step of moving to the neutral position to move the sleeve to the neutral position in between the two clutch gears. The step of moving to the neutral position moves the sleeve in a direction as far as half the stroke of the sleeve. The stroke of the sleeve is a value obtained by adding a straight distance between the first stopper and the second stopper to an invalid stroke formed by a gap between the shift unit and the parts of the synchronizer. |
