关键词: 重型商用车；AMT；桌面标定；换挡规律

Abstract: This paper takes the electronic automated mechanical transmission (AMT) of a heavyduty commercial vehicle as the object, designs shift schedule under different working conditions based on factors such as slope and vehicle weight. On the basis of meeting the fuel economy and power performance of the vehicle, using AVL SPA software to analysis and optimization the driving performance of the basic shift schedule. By adjusting the basic shift schedule before the vehicle calibration, the shift becomes more reasonable, and the workload of vehicle calibration is reduced to a certain extent. The optimization method is verified through experiments to improve the driving performance of shift schedule, and has theoretical guidance significance for vehicle calibration.

Key words: Heavy-duty commercial vehicle; AMT; Desktop calibration; Shift schedule