Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: iterative approach

Sortuj według:

Ogranicz wyniki do:

Study on the relationship between vehicle maintenance and fuel consumption

Sakno Olha, Medvediev Ievgen, Kolesnikova Tatiana

Zeszyty Naukowe. Transport / Politechnika Śląska

2021

z. 113

163--172

A contemporary road vehicle (RV) is a rather complex system, consisting of a large number of subsystems, assemblies, units, and elements (parts). While operating, an RV interacts with the environment, and its elements interact with each other. Consequently, the properties (parameters) of these elements change in the process - hardness, roughness, size, relative position, gapping, etc. A partial solution to the presented problems can be the search for a technique for assessing the RV technical condition by a generalised criterion, which is quite sensitive to changes in the technical state. One of these criteria may be fuel consumption in litres per 100 kilometres. This paper investigates the possibilities of using the fuel consumption indicator as a criterion for assessing the technical condition of the vehicle and the vehicle maintenance and repair technologies have been generalised to obtain a given technical solution. Thus, the possibility of using the fuel consumption indicator as a criterion for assessing the technical condition of the vehicles was explored using the Volkswagen Touran 1.9 TDI operating in urban conditions using a driving cycle. A clear correlation between the fuel consumption and the service lifetime of the vehicle has been established; therefore, it depends on the frequency and quality of the maintenance and repair (MR). The vehicle MR technology has been generalised to obtain a specified technical solution. The process of creating an RV MR Technology model is implemented based on an iterative approach (repetition) with the possibility to specify their features.

The iterative approach to the optimal linearization method

Myszkowski P., Forenc J.

Electronics and Telecommunications Quarterly

2008

Vol. 54, No 3

389-395

In presented paper the analysis of the non-linear models of physical systems will be considered. The analysis of the non-linear system dynamics will be performed by means of the linear model obtained by the optimal linearization method. The paper presents a new approach to this method, based on iterative process.