DOI: https://doi.org/10.33994/kndise.2020.65.59

А. Khrulev

The article examines the expertise field of the technical condition study of the vehicles that are not related to road traffic accidents, but refer to the settlement of the disputes with the claims regarding the quality of a sold vehicle during its warranty period, as well as the quality of its maintenance and repair. It is noted that the occurrence of a failure existing at the time of the expert’s study may be associated with various events in the history of the vehicle. It is shown that the fault cause investigated by the expert can be actually located in one of the past events, and such events together make up the vehicle history, if they are arranged according to the chronology of the dates and / or run (running time) of the vehicle.

A simple method for compiling and analyzing the vehicle history was proposed, which allows one to establish the fault causes of units and assemblies that are difficult or impossible to identify by other methods. By a typical example all the stages of compiling a vehicle history table was shown from the analysis of all the available documents and information up to analyzing the characteristic events and their symptoms in the history. This means the inclusion of all identified events in the history table, the allocation of characteristic events and their corresponding symptoms in the history, which can indicate the initial damage to the studied unit, the development of the damage or another characteristic event that is important for determination of the fault cause.

According to the results of the study, it was concluded that the analysis of the vehicle history is one of the possible ways to determine the fault cause of the complex units and assemblies. The developed simple method for compiling and analyzing the vehicle history table makes it possible to establish the fault causes that are difficult or impossible to identify by other methods. Using the proposed method in practice has shown its effectiveness in solving the expert tasks related to the technical condition study of the vehicles when considering disputes in connection with the claims to the quality of the vehicles or their repair.

Key words: vehicle, technical condition, fault, failure, cause, history, method.