Synthesis of the loading system for the conduct of in-kind transmission tests of vehicles and special equipment

Abstract

Abstract. Problem. The paper solves an important scientific and practical problem, which allows to improve the quality of testing units and aggregates of the transmission of vehicles and special equipment on test stands with a balancing load. Conducting experimental tests on specialized stands allows you to maintain high stability of the factors that are set and maintained, the accuracy of their regulation, and the possibility of in-depth observations of executive devices. The accuracy of measurement and registration of parameters of automated measurements is increased due to the use of microprocessor systems with a digital network structure of data transmission between the control module and peripheral units and measurement modules. The application of the proposed laboratory experimental equipment to the balancing load allows to determine and improve the competitive advantages of energy-efficient tractors with electric transmission. Methodology. The methods of theoretical basic electrical engineering have been developed in the production and calculation of circuits using circuits. Also classical methods of statistics of signals from ADC were used. Results. The technique of processing information from the current, voltage and temperature sensors using a mathematical apparatus without using harmonic analysis is presented. The hardware implementation of the proposed method allows the use of simplified computing tools. Originality. Complex analysis of the data obtained from the current, voltage and temperature sensors is carried out. During the analysis, the range of velocities with stable operation of the measurement system was determined. Practical value. As a result of the work, an important scientific and practical problem was solved, which allows to increase the energy efficiency of tractors. To maintain the maximum energy efficiency of the traction electric drive of the tractor in the modes of various loads, its control system must include means of displaying the current state of the energy parameters of the power plant. The electrical equipment must include an on-board computer, which helps the driver to make the optimal tasks of work, according to preliminary calculations, as well as display the information needed on the route, the state of the vehicle, means of communication. communication of the car with the external environment, with the navigation system, etc. The on-board computer provides information to the touch screen with programmable virtual controls, and communicates with the driver's mobile systems.