关键词: 商用车；AMT；智能换挡规律；标定方法

Abstract: This paper takes an electronic mechanical automatic transmission (AMT) model as the research object. Based on slope, load, driving environment and other factors, the control strategy under different working conditions is developed and calibrated accurately.On the premise of meeting the power needs of customers in market segments, the shifting and lifting curves of electronically controlled mechanical automatic transmission are calibrated in combination with the engine fuel consumption ratio graph and emission thermal management graph, so as to ensure that the vehicle is operated within the optimal fuel economy and emission performance range of the engine, optimize the vehicle fuel consumption and achieve emission consistency standards,and meet the requirements of regulations and customers.

Key words: Commercial vehicle; AMT; Intelligent shift schedule; Calibration method