Vol 9, No 4-1 (2015)

The paper presents the study of materials on emissions from road transport in the major cities on the example of Moscow. It is a forecast of increase of emissions from the growth of the vehicle fleet up to 2030. It was shown significant excess of emissions of harmful solid particles in the exhaust gas, regulated UN rules and general particulate emissions from tire wear, brake systems and road- way, which are currently not regulated. There is the necessity of development of standards for thevaluation of their emissions.

The article presents the results of experimental researches influence of resonant modes of the working bodies of the cultivator BOURGAULT 8810 on the energy and quality indicators tillage.

The paper proposes to use a comparative assessment of electric starter systems with a capacitive energy storage battery.

The use of throttles as elements of control devices in hydraulic drives requires them to ensure the possibility of pressure dependence on the flow of the working fluid of the desired type. To establish this dependence it is necessary to know the area of the opening at the inlet of the throttling passage. However, the direct method to measure the actual value of this area resulting from the manufacture of the throttle channel is not always possible. The article presents the evaluation of the possibility of using the alternative method of determining the area of the entrance to the throttle channel of circu-lar cylindrical shape.

The paper analyzes the different types of capacitive energy storage devices when they are used in systems of electric starter systems of automotive engines.

The article contains an analysis of the use of advanced composite materials in air transport sys- tems and recommendations for the use of these materials in the construction.

This article describes an example of practical implementation of integrated navigation system for determination of truck loader position to solve the problem of transportation optimization. The working principle, design features and characteristics of the hardware components of navigationsystem are described. The results of system field tests are provided.

The paper provides methodology of calculation basic design parameters of low emission centrif- ugal pump. The main design parameters that should be calculated according the method are rotation frequency of the pump shaft, diameters of the inlet and the outlet of impeller, width of the inlet and the outlet of the impeller, angles of the blades at the inlet and the outlet of the impeller, number of impeller blades. The procedure gives approximate results and enables to calculate required num-bers. Its results could be used to make adjusted calculation of low emission centrifugal pump.

This article presents the effect of a high-voltage electric signal, sent to electrodes of a high- pressure pump of the engine fuel system, on the consumption supplied to the engine cylinders from the pressure accumulator. The main dependences were determined. They show that increase of high voltage leads to the increase of accumulator pressure and consumption in engine cylinders.

The results of the simulation of automobile rectilinear motion are provided in the paper. An overview of some of the existing models was made. The analysis was performed in order to obtain analytical information about the balance of effective forces and resistance forces of an object in free-wheel mode. The reliable mathematical description is needed to develop models of human- machine system “automobile - environment - driver” and to study the influence of various fac- tors on the performance of control object.