Patent ID: 7430935
Filing Date: 2008-10-07
Classification: F16H,Y10T

Abstract:
1. A vehicle transmission having seven forward gears and one reverse gear, a first forward gear being a crawling and/or hill gear having a large transmission ratio for low driving speeds, comprising: an input shaft; an output shaft arranged collinearly with the input shaft; a counter shaft arranged parallel to the input shaft and to the output shaft; seven gearwheel stages disposed in gear set planes which are offset collinearly from each other, wherein each of the gear set planes comprises a first gearwheel and a second gearwheel that meshes with said first gearwheel, each gearwheel stage of the vehicle transmission being formed by a gearwheel connected in a rotationally fixed manner to an assigned one of the input and countershaft, and another gearwheel rotationally mounted on an assigned one of the output shaft and counter shaft, the another gearwheel being couplable with the assigned one of the output and counter shaft by using an assigned shifting element; and in a specified forward gear for normal driving, torque being transmitted from a first gearwheel of a corresponding specified gearwheel stage to a second gearwheel of the specified gearwheel stage, wherein, when the crawling and/or hill gear is engaged, torque is transmitted in an opposite direction from that in the specified forward gear over the corresponding specified gearwheel stage, from the second gearwheel to the first gearwheel of the specified gearwheel stage.