Patent ID: 6524208
Filing Date: 2003-02-25
Classification: F16H

Abstract:
A multi-speed gearbox comprising:a gearbox input shaft and a gearbox output shaft; a first mechanical gearbox portion; means for coupling said first mechanical gearbox portion to said gearbox input shaft; a start element including a second mechanical gearbox having at least one planetary gear set wherein a first gearbox element of said second mechanical gearbox is coupled to said first mechanical gearbox and to said gearbox output shaft, and said start element is associated with a second gearbox element of said second mechanical gearbox, said start element being capable of being selectively used for both a first gear and a reverse gear; and means for realizing individual gear steps that are associated with the first mechanical gearbox portion, said means being actuated in such a manner that transmissions into the first gear and the reverse gear can be determined by said second mechanical gearbox portion.