Method system for control of gear selection in vehicles

A method of controlling gear selection in a vehicle transmission comprises detecting a change in a direction control signal (DCS) from a neutral signal state. If the current transmission output speed (TOS) is less than or equal to a predetermined neutral shift threshold TOS, the transmission selects one of a plurality gears having the same direction signal state as was selected. If the current TOS is greater than the predetermined neutral shift threshold TOS, the transmission selects one of the plurality of first direction gears if a machine motion direction parameter indicates that the vehicle is moving in the first direction or one of the plurality of second direction gears if the machine motion direction parameter indicates that the vehicle is moving in the second direction. 控制车辆变速器中的齿轮选择的方法包括从空档信号状态检测方向控制信号(DCS)的变化。如果当前TOS小于或等于预定空档切换阈值TOS，则变速器在DCS变成第一方向信号状态时选择多个第一方向齿轮中的一个，或者在DCS变成第二方向信号状态时选择多个第二方向齿轮中的一个。如果当前TOS大于预定的空档切换阈值TOS，则变速器在机器运动方向参数指示车辆正在第一方向上移动时选择多个第一方向齿轮中的一个，或者在机器运动方向参数指示车辆正在第二方向上移动时选择多个第二方向齿轮中的一个