Patent ID: 10436319

Abstract:
A method for controlling a gearbox that includes, a) shifting gear from a low range gear to a high range gear in the range gearbox (7); b) disconnecting a ring gear (54) of a planetary gear from a gearbox housing (52), synchronizing the speed between a third gear drive (74) on the main shaft (14) and the main shaft (14), connecting the third gear drive (74) and the main shaft (14); c) disconnecting a first part (14a) of the main shaft (14) from a second part (14b) of the main shaft (14), synchronizing the speed between a first gear wheel (64) and a lay shaft (22), connecting the first gear wheel (64) and the lay (22) shaft via a second and a third gear wheel (70, 76); and d) disconnecting the first, the second and the third gear wheels (64, 70, 76) and from the lay shaft (22), synchronizing the speed between the second part (14b) of the main shaft (14) and a planet carrier (38) of a planetary gear (37), connecting the second part (14b) of the main shaft (14) and the planet carrier (38); a gearbox (2), controlled by the method; and a vehicle (1) that comprises such a gearbox (2).