Study Of The Hydraulic Resistance Test Using Microcomputer Examine System For Diesel Locomotive

The hydraulic resistance testbed is an important equipment for carry on diesel locomotive load performance test, adjusting diesel locomotive power and overhauling its state. This thesis is on the basis of analyzing the main technical parameter of the diesel locomotive in detail. Directed against the backward state of the original testing equipment, propose and adopt advanced microcomputer technique, and control technology and test detection technique for the testbed go on technological scheme that transform. Using the design philosophy of the module ization, carry on the design of soft and hardware to every function module , thus form a microcomputer detecting system of the hydraulic resistance testbed for diesel locomotive.This thesis probes into design of microcomputer system taking single chip microcomputer as central, anti-interference, security segregate and design of interface circuit etc. Furthermore, the option to cycle of sampling various frequencies examine signals is also analyzed and it was utilized in the examine system. Thus, the dependability and stability problem of the microcomputer examine system of hydraulic resistance testbed have been solved better, make this test a modern techniques and practibility is good. In this examine system, the expandable module which helps the system link with PC to realize processing deeply and analyze examine data.The diagram of connection of main hardware circuit in the examine system and flow diagram of main software module are provided. Have analyzed to the result of the test , it indicate that the system has totally reached the designing requirement.This system apply to the hydraulic resistance testbed in Hefei Locomotive Depot of Shanghai Railway Bureau already and have obtained good result of use.