Research And Development Of The Intelligent Test System Of Mini-diesel Engine's Technique State

The number of mini-tractor in rural area has been increasing in therecent 20 years. But because of the factors of the structure and subject orobject, its power is inadequate, its rate of fuel consumption is very high andits pollute is in excess. It needs a suit of test system to solve this question,intelligent test system of mini-diesel engine's technique state, which basedon single chip computer AT89C51, is contented to the demand.The system's object of study is the mini-diesel engine of the type of 195of 295 in agriculture. The fuel consumption, pressure, turn speed are itsparameters measured. The system's main purpose is to complete the test ofpower and fuel consumption of mini-diesel engine rapidly and accurately, andprovide convenient and quick serve to relative departments.The system is composed of two parts, hardware and software. Thehardware part includes the choice of sensors, the developments of sourcecircuit and micro-controller control circuit based on single chip computerAT89C51, and so on. The software designing adopts module programming. Itcomprises of initial module, keyboard management module, display module,A/D converting module, data printing and coordinate printing module, speed testing module power testing module and fuel consumption testing module,keyboard management module.The hardware and software of the system match well, and the systemintegrate microelectronics and single-chip computer interface technique. Bykeyboard and keyboard management module, it completes fuel consumptiontest rapidly and effectively. The system has the advantages of low cost, simplestructure, easy installation, easy operation, high precision and goodsynchronization. It makes convenient for the test of min-tractor's fuelconsumption in the department of agricultural machines monitoring andrepairing for the power and fuel consumption test of mini-tractor.