The article proposes a scheme of modernization of the gasoline engine to work on a gas-air mixture. This article discusses the technical characteristics of the engine on gasoline which is recommended by the manufacturer. The characteristics of the engine operation on the gas-air mixture without alterations, and the characteristics that the engine shows when working on the gas-air mixture with the already made changes are also given.

Keywords: car, gas equipment, intake valve, compression ratio, mixture pressure

The technique of improving the quality of remote diagnostics of cars is proposed. This method makes it possible to learn real-time and real-time information about the status of the functional units of the car, thereby assessing its technical condition.

Keywords: remote diagnostics, car service, car

The system analysis of the main directions of the fourth scientific and technological revolution, called "Industry 4.0" in the field of road transport, is conducted in the article. The essence of the industry 4.0 is the development of the digital economy using cyberphysical systems, the Internet of things and large data. Applicable to road transport can be identified three areas: the creation of an unmanned vehicle, the development of technological support for the movement of trucks in the convoy, the development and implementation of "automobile Internet". At the same time, there are a number of technological, legal and ethical problems that hamper the large-scale development of a new generation of transport.

Keywords: Industry 4.0, unmanned vehicle, Internet of Things, Cyberphysical systems, autonomous transport, cloud technologies

The method of calculation gamma percentage fatigue resource of an arrow shovel excavator. Using this method can most accurately determine the distribution of the extreme members of samples and the corresponding shifts of the Weibull distribution. It was found that to calculate the shifts do not have, you can use only the extreme members of samples.

Keywords: reliability, probability, resource, sample, excavator

Researches of hardness of various steel grades for the purpose of determination of density of their distribution and distribution of extremes of selections are conducted. Results of the received researches are used for definition of a resource of details with use of a graphic method of transition from selection to set.

Keywords: selection, fatigue resource, population of final volume

The peculiarities of the activity of mobile car repair shops are considered. Mathematical models for determining indicators, taking into account the randomness of the receipt of requirements for maintenance and the duration of the services themselves, are proposed.

Keywords: mobile car repair shop, probability, criteria, complex indicator, efficiency

In article the method of calculation gamma  percentage fatigue resource of an arrow shovel excavator for population of final volume, by means analytical method of definition parameters of Weibull distribution is offered. 
The made computing experiment has shown that the developed method allows to receive gamma percentage value of a fatigue resource of an arrow shovel excavator by means of transition from the sample data to the population data.  

Keywords: a resource, an arrow, shovel excavator, population, Weibull

In article the refined method of calculation gamma  percentage fatigue resource of an arrow shovel excavator for population of final volume, by means analytical method of definition parameters of Weibull distribution is offered. 
The made computing experiment has shown that the developed method allows to receive gamma percentage value of a fatigue resource of an arrow shovel excavator by means of transition from the sample data to the population data.  

Keywords: a resource, an arrow, shovel excavator, population, Weibull

The algorithm of determination durability parameters, loading and resource by means of analytical transition from selective data to population data is considered. The analysis of the executed calculations for this algorithm showed that receiving parameters of likelihood distribution for set on one casual sample is the confidant.

Keywords: Strength, loading, resource, analytical method, sample, populations.

The method of definition distribution Fisher-Tippeta parametres of final volume population (Ас, Вс, Сс) under the selective data of the average stress is offered in the given work. Average values of parametres (Ас, Вс, Сс) thus is recommended to use at repeated modelling. Thus the Ас, Вс, Сс received is recommended to use average values of parametres at repeated modelling.

Keywords: the selective data, stress, Fisher-Tippet distribution, population, modeling.

The analytical method determination parameters of the three-parametrical Waybill distribution for final volume population on the basis received parameters on a sample is stated in this work The algorithm of calculation on which computing experiment is made is presented. On the basis of these calculations the conclusion that it is necessary to determine by this analytical method parameters of the three-parametrical law of Waybill for set of final volume on the basis of the received parameters on a sample is drawn.

Keywords: population of final volume, sample, dispersion, an average quadratic deviation, distribution parameters, durability became

Optimization an arrow no-failure operation probability for set fatigue resource of an arrow as base detail of the shovel excavator is important economic task.
Optimum value of no-failure operation probability can be received as a result of consideration of various options of manufacturing of an arrow of the excavator.
Thus at no-failure operation probability Р=0,999 for 20 thousand hours, optimum option is the arrow design from steel 15ХСНД with wall thickness 12 mm.

Keywords: optimization, resource, arrow, shovel excavator

The paper proposes a method for calculating the gamma - percentage fatigue life boom shovel for a set of finite volume, using the analytical method of determining the parameters of the Weibull law. 
Conducted a computational experiment showed that the method allows to obtain gamma percentage fatigue life boom shovel through the transition from sample data to aggregate data. 
Keywords: resource boom, excavator, aggregate, Weibull.

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In this paper, a comparative analysis of the shift parameter distribution initial set of calculated analytical method and simulated, obtained by computer simulation using sample data. Error δi shifts between the parameters listed in the table and plotted errors on the scope and volume of the aggregate.
Thus, increasing the volume of the aggregate error is reduced from 30% to 1% at a constant volume sample m = 50.
Keywords: sampling, aggregate, volume, range, accuracy, distribution, performance analysis, engineering, reliability.

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