Shift Schedule of Automatic Transmission of Construction Vehicle Based on Matlab/Simulink

Aimed at the problem of engineering vehicle hydraulic mechanical transmission system efficiency is low.Thispaper mainly study of the engineering vehicle automatic transmission shift schedule.Through the artificial set the minimum numerical efficiency,this paper obtained the automatic transmission shift schedule,changed the output of the torque converter speed;And through the establishment of Matlab/Simulink based simulation system,this paper simulated and validated the process of vehicle automatic transmission.Even in the case of the speed change,the transmission of the vehicle can be through the shift operation to keep the turbine to maintain high power output,and can control the transmission efficiency of the vehicle torque converter in the relative ideal range.The study provides a theoretical basis for energy saving transformation of the domestic engineering vehicle.