| The car test is growing up accompany with its industry develop gradually.Car industry develops up to today is inseparable with its experiment study.It is a kind of extremely important method to help us understand the actual regulation in the usage and push its technique progresses It is an important means to guarantee the product function, increase product quantity with market competition abilityThis text studied the test device on car gearbox------the construction andcontrol system of gearbox test platform of shut type power flows.It is divided intotwo parts to test------the machine construction part and control parts.The machinepart introduced the main construction , characteristics and its work principles of the set first. And it is divided into vaiety speed system, add carry system and trant motor system.Choosing the generator.The control part introduces the characteristics of AVR and chooses principle.Ensure the project for controling system. The whole control system is divided into two parts of hardware and software.The hardware part design include driveing circuit, A/D converts circuit and key-show circuit etc.The software part mode that experiment the gearbox function proceeded the main procedure and various experiment the sub-procedure, A/D conversion sub- procedure, keyboard indicate that sub- procedure, break off the design of the each sub- procedure in etc.In the end, proceeded the electric circuit knothole creates to adjust to try with the system, imitating whole a process for experimenting.The gearbox's function experiment the plateform manipulates convenience, input record accurate, experiment the result expresses clarity, the dependable is high. Come up to see from the theories, the car gearbox function testthe pedestal control system in gearbox machine efficiency test the movement is a stability dependable, the operation is more simple, having the certain anti- interference ability, basic come to a the control request that gearbox test set.
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