All the components of our 12-speed commercial vehicle AMT housing, gears, shafts, etc. have completed sample development, TCU controller, application programme, etc. have been designed, and the AMT performance test rig has been built. The AMT performance test bench consists of 300kW motor, 12-speed commercial AMT, inertia flywheel, load motor, 12bar air source, cooling tower, etc., which can test the AMT for shifting performance test.