Development Of AMT Control System For Datong 5-speed Transmission

Intelligent automatic gearbox control is the basic functions of the vehicle. AMT (Automated Mechanical Transmission) with high transmission efficiency, low manufacturing costs, a series of advantages, with good prospects. At present, domestic and foreign research institutions, manufacturers of AMT for a lot of research, more mature foreign products, but in the domestic market is still relatively rare AMT own brand products. Datong production of five-speed transmission gear, designed specifically for urban bus, this AMT transmission system for this section to study the development and demonstration, which strive for the transmission and control of critical technology introduction, digestion, and the use of electro-hydraulic body in order to achieve the intended function in the basis, reduce system cost, improve system reliability.Clutch engagement control and shift control are two major difficulties in the AMT technology. Based on actual driving conditions, analysis of the vehicle at the start, climbing, braking and other targets during the clutch control, fuzzy control technology, in various stages of the bonding process with different control parameters and strategies, so that the engine and clutch to coordination and control. This article also examined the intent of the driver, the vehicle driving conditions, vehicle weight load and other conditions of the judge. By controlling the engine speed, to carry out the impact of shift time and degree of study to be effective in reducing the vehicle when the impact of various degree of shift and reduce clutch wear, the shift to achieve the best results.This five-speed transmission of Datong gearbox research and development of the AMT system, automatic transmission system development for the company to provide a certain degree of theoretical reference, with good engineering significance.