Research Of Loading Control System For Manual Transmission Test Platform

The departure from the Transmission Test Taiwan’s status and development background and on the market today several dynamometer were compared, and then come to the superiority of the AC frequency conversion technology from the research carried out a series of demonstration and analysis, the overall design of an AC variable frequency technology for load transmission test bed.First of all the article designs the basic structure and layout of the manual transmission performance test platform. Comparison of several dynamometers, using the energy recovery rate of high-power testing system for the main contents of this article, and a detailed analysis of asynchronous dynamometer program and synchronization dynamometer programs, and ultimately determines the loading program.Then, the mathematical model of the DC motor and DC motor speed control theory, and careful analysis of the mathematical model of the AC motor, transformation method of comparison leads to thought control vector in the vector control theory, according to the coordinates of the vector control thought, and ultimately have control based on rotor flux vector control equations, the use of a detailed analysis of the equation on the principle of vector control.Then a simple introduction to the principle of the PID controller, described several different PID control parameters tuning method, the final choice of the traditional PI controller, and direct search methods use a random number on the parameters of the PID controller tuning, and then speed and torque closed-loop regulator is designed according to the tuning parameters.Then a simple introduction to the principle of the PID controller, described several different PID control parameters tuning method, the final choice of the traditional PI controller, and direct search methods use a random number on the parameters of the PID controller tuning, and then speed and torque closed-loop regulator is designed according to the tuning parameters.Finally, before the results of the analysis of vector control theory and then combine car gearbox test rig load control system of the principle, coupled with the above design the speed and torque closed-loop regulator, using MATLAB software, the transmission test bed load control system simulation design, and focus on the positive drag and anti drag curve analysis.