Motor vehicle gearbox

A synchronized countershaft motor vehicle transmission comprising:

• a plurality of gearshift sets (28, 29) each having a synchronizing device;
• a plurality of speeds (1 and 3 or 2 and 4) adjacently associated with each of said plurality of gearshift sets (28, 29), with successive speeds of said transmission being associated with different ones of said plurality of gearshift sets (28, 29);
• and
• an actuating device (12, 13) being associated with each said gearshift set (28, 29) for engaging a desired one of said adjacently associated speeds as desired;
• wherein each said actuating device (12, 13) is controlled and operated independently of one another in a manner such that the synchronizing devices of said plurality of gearshift sets (28, 29) are simultaneously loaded;
• and
• each said actuating mechanism has an electromotor combined with an electronic control for facilitating control of said actuating mechanism.

A synchronized countershaft motor vehicle transmission comprising:

• a plurality of gearshift sets (28, 29) each having a synchronizing device;
• a plurality of speeds (1 and 3 or 2 and 4) adjacently associated with each of said plurality of gearshift sets (28, 29), with successive speeds of said transmission being associated with different ones of said plurality of gearshift sets (28, 29);
• and
• an actuating device (12, 13) being associated with each said gearshift set (28, 29) for engaging a desired one of said adjacently associated speeds as desired;
• wherein each said actuating device (12, 13) is controlled and operated independently of one another in a manner such that the synchronizing devices of said plurality of gearshift sets (28, 29) are simultaneously loaded;
• each said actuating mechanism has an electromotor combined with an electronic control for facilitating control of said actuating mechanism;
• and
• a linear device is connected to said electromotor for converting rotational movement of said electromotor into translatory gearshift movement for actuating a desired one of said gearshift sets (28, 29).