Research Of Bus Technology Conditions Change

Technical condition of the car is the car performance parameters and overall appearance. Vehicle performance parameter values and the appearance of the car will run with the constantly changing, its variation is not only concerned with the vehicle structure, and closely related to the operating environment of the car. The car is a complex electro- hydraulic systems, the various systems, subsystems and parts, automotive inevitably brought into contact with the outside environment(temperature, humidity, road conditions, load, etc.) during use, there are, in various parts of the car effect, causing wear, fatigue, corrosion and aging changes, which is the root cause of the technical condition of the car changes.General technical condition of the car with the growth of its running time will gradually deteriorate, and therefore need to be related to preventive maintenance, such as primary care, secondary care and engine overhaul, often also some random failures occur during each maintenance cycle Therefore minor repairs are inevitable. When the technical condition of the car has been unable to meet the operating co nditions, and should be overhauled, we need to retire and update the same type of vehicle. Units of measure commonly used to update the time the car is to use the mileage and age, mileage is calculated using the car started running to accumulate mileage when retired, the age is based on the average annual mileage to convert the useful life of the car. Regardless of the method is to determine the core issues of affordable life of the car.Papers on a bus company maintenance management data filtering, sorting, classification, analysis buses accumulate mileage, the number of minor repairs and maintenance costs at all levels with the age of the vehicle growth trends, through the analysis of these macro parameters to discuss the technical condition of the bus changes, the analysis of various types of maintenance costs to get the best economic life of our buses, provide a theoretical basis for buses retired and update the state of technology is closely related to buses and use of the environment, focusing on the e ffects of temperature and humidity on technical condition of the bus.