Ecological Systems and Devices Annotation << Back DIAGNOSTICS OF THE TECHNICAL CONDITION OF THE CAR AND ITS TECHNOSPHERE SAFETY G.N. Akhobadze Based on statistical data analysis, an approach to the study of the reliability of the technical condition of the car is proposed. The expediency of using a multidimensional regression method that establishes the statistical dependence of one variable on several independent variables is substantiated. Based on tabular experimental data showing the change in the relative reliability of the car from changes in the coolant temperature in the cooling system, oil temperature in the warmed engine, generator temperature, oil pressure in the warmed engine and engine temperature, the multidimensional regression equation obtained by the STATISTICA program is given. According to the Fisher and Student criteria, the signifi cance levels of regression coefficients and the contribution of each variable to the determination of reliability from five independent variables are evaluated. The characteristics of the estimation of absolute and relative errors between experimental and calculated results are given. Based on the analysis of exhaust gases of diesel cars and the design of their catalytic converters, an ultra-high-frequency method for monitoring the concentration of shock gas in the flue is presented, which provides operational information on pollution of the Technosphere. Keywords: regression, independent variable, significance, equation, intensity, wave, particulate filter. DOI: 10.25791/esip.2.2022.1284 Pp. 24-31.