Method for assessing the energy efficiency of a vehicle taking into account the load under operating conditions

Abstract

In operation conditions, the transport work of a vehicle is estimated by the increment in the mass of the freight over the distance traveled. This criterion does not characterize the mechanical work of the vehicle in the transport process. Without analyzing the energy costs of performing mechanical work, it is impossible to assess the energy efficiency of a vehicle. The energy efficiency of a vehicle is defined as the ratio of the mechanical work performed by the vehicle to the potential energy of the source. In this paper, it is proposed to determine the engine torque by fuel consumption. The engine torque value depends on the energy required for driving the vehicle. Based on the analysis of the results of computational and experimental studies, a method for assessing the energy efficiency of a vehicle with an internal combustion engine is proposed. The reliability of the results obtained is substantiated by the test results and the available information in practice.

Specific features of improving automobile road complex of the Republic of Uzbekistan

“…The practical implementation consists in the development of methods and scientific validity of evaluation indicators, which form the basis of a comprehensive approach to the choice of the repair strategy, allowing to forecast possible changes in the TEI of the road at various stages of service in specific for the considered road changing operating conditions, and thus to make adequate management decisions. This makes it possible to expand the improvement of the management of the road repair complex at the stage of planning road works, when justifying the need for necessary funds and their distribution in time to assess the developed technical solutions for the assignment of types of road works from the standpoint of economic feasibility [3].…”

“…Such regulatory impact is the development and implementation of the most effective repair measures. The objective is achieved by solving the problem of ensuring the minimisation of transport costs in the automobile transport complex when implementing the most effective repair measures at the stage of the road life cycle [2,5].…”

“…The financial impact of the response is the sum of the benefits received in the non-transport and transport spheres [2].…”

“…The relevance of the topic lies in the need to eliminate the existing negative trend: the carriers are constantly demanding good roads (they position themselves as the "main" in this process), although objectively they are destroying them with increasing intensity (for example, increasing axle loads up to 13-14 tonnes), leaving almost no compensation for the repair and maintenance of the road network. It is clear that even minor overloading does not pass without consequences for the condition of the road surface, and major overloading poses a serious threat to the pavement's useful properties, contributing to its accelerated deterioration and reduced safety [1][2][3][4]. Various methods are therefore used in different countries to prevent heavy vehicles from damaging roads.…”

Increasing environmental safety, increasing service life of ice units and assembly and saving fuel consumption through application of multifunctional fuel additives

“…The Navoi Mining and Metallurgical Company (NMMC JSC), which is one of the ten leading world gold producing companies, is the largest mining enterprise in the Republic of Uzbekistan and has more than 3,000 units of fuel-consuming vehicles and mechanisms on its balance sheet; it was decided to conduct pilot tests of a multifunctional fuel attach LNC MiaNO X R made in Germany [7][8][9][10]. The purpose of the test.…”