序列变速箱（Serial gearbox）.docVIP

序列变速箱（Serial gearbox） Serial gearbox Serial transmission (AMT) is improved in the traditional manual gear transmission based on; it combines hydromechatronics automatic transmission has the advantages of both AT and MT; AMT has the advantages of automatic transmission common automatic transmission, and the retention efficiency of original manual transmission gear transmission, high cost has the advantages of simple structure, easy manufacture, low strength. It is now in the transformation of the manual transmission, retains most of the original assembly, only change the manual shift lever operating system, production of succession, the transformation of the investment costs less, is easy to be accepted by the manufacturers. The driver through the accelerator pedal and joystick to the electronic control unit (ECU) control signal transmission; electronic control unit acquires engine speed sensor, the speed sensor signal, the time to master the running state of the vehicle; electronic control unit (ECU) based on the best program according to these signals stored therein, the optimum shift pattern, clutch fuzzy control rules engine fuel, adaptive regulator, action and timing for separation of engine fuel, clutch and gear shifting and combination of the three to achieve the best match. To achieve excellent fuel economy and dynamic performance, as well as smooth start and rapid shift ability, in order to achieve the desired results. However, the AMT transmission is not perfect, and the biggest drawback of the AMT gearbox is the poor comfort of the shift and the interruption of power during the shift process, resulting in the poor speed performance during the shift process. SMG SMG introduction, features and working principle SMG gearbox (Sequential Manual Gearbox) was originally developed by BMW and two of the top parts company GETRAG and SACHS (ZF) a new concept of transmission system of cooperative research and development, the first in 1996 is equipped in the BMW E36 M