The rationing of indicators of vehicles shock-absorbers technical conditions to control them in operation

Introduction. The article describes the standardization methods of shock absorbers technical condition indicators (TCI) of motor vehicles to monitor them in operating conditions.

The purpose of the study was to increase the stability and active safety of an automatic shock absorbers of a vehicle based on the effective methods of their monitoring, taking into account the influence of their technical condition on the adhesion characteristics of tires with a supporting surface and stability parameters under normal load fluctuations.

Methodology and research methods. To conduct the research, experimental and analytical research methods have been developed. The bench method for controlling shock absorbers was based on their ability to ensure stable contact of the elastic tire with the supporting surface and create lateral reactions when the wheel moves through a roughness. The road method was based on the ability of shock absorbers to provide stability indicators for a vehicle driven by wheels through a single roughness. To process the results of the study, common approximation methods were used.

Scientific novelty and results. The results of experimental and analytical studies of the shock absorber performance impact on their stability indicators in operating conditions have been presented. The results of bench and road methods for monitoring the technical condition of shock absorbers in operating conditions were presented as well. The scientific novelty of the identified dependencies characterizing parameters of the tire adhesion to the supporting surface as well as the stability of the vehicle and the technical condition of the shock absorbers during operation together with their normalized values were determined.

Practical significance. The developed methods made it possible to experimentally evaluate the technical condition of shock absorbers under operating conditions, taking into account its effect on the characteristics of the tires adhesion to the supporting surface and on their stability.

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