| 摘要 |
<p>The invention relates to an increment shifted transmission (9) for motor vehicles, comprising an in-going shaft in a housing, at least one intermediate shaft in the housing which exhibits at least one gear wheel 816, 17) in engagement with a gear wheel (12, 15) on the in-going shaft, a main shaft in the housing with gear wheels (15, 21, 22, 23) in engagement with gear wheels (18, 19, 20) on the intermediate shaft with at least one of the gear wheels in each neutrally engaging pair of gear wheels on the intermediate shaft and the main shaft being rotateably arranged about its shaft and by means of coupling organs (13, 24, 25) being lockable onto its shaft and manoeuvring organs (40, 41, 42) co-operating with the coupling organs and being controlled by a control unit (45) depending on signals fed to the control unit representative of various engine and vehicle data. The invention is characterized in that the manoeuvring organs (40, 41, 42) are arranged to, in the case of in-signals to the control unit (45) which indicate a predetermined driving condition at which the fuel consumption of the vehicle is optimally low, be set by means of the control unit (45) so that a synchronized gear engaged at the time is placed in neutral position, and in that the manoeuvring organs (40, 41, 42) are arranged to deactivate said neutral position when said driving condition is no longer present. By means of the invention, a gear box is obtained which permits a lowered fuel consumption of an associated engine.</p> |
