GEOMETRIC CONTROL MODELS OF CARS' EXHAUST GAS RECIRCULATION
For the summary of the article please see the attached PDF-File (English text is after Russian version)ABSTRACT Ensuring compliance with requirements for the emission of harmful substances in accordance with the standard Euro-4 is one of the priorities in the design of devices associated with a reduction in toxicity of motors [1, 2]. Up to 60% of harmful emissions into the atmosphere accounts for road transport. The use of modern information technologies of visualization and three-dimensional computer modeling of devices of systems intended for toxicity decrease of cars allows for a systematic analysis at any level of difficulty. The technical result of creation of threedimensional computer geometric models (hereinafter - TDCGM) means reduction in time and computing resources spent on the design. The objective of the author is to investigate a new technique for creation of geometric control models of EGR system. The data for visual analysis with the help of 3D images of the EGR control system components are analyzed, the choice of software is justified and 3D modeling of recirculation valve for the car «Kalina-2» is conducted. In particular, there are improvements in layout scheme of recirculation valve, control parameters of its materials and weight and size characteristics. A method is proposed to simplify design and calculation of transient electromagnetic processes of synchronous stepper motor with permanent magnets, ensuring the operation of the valve. The practical application of the method enables to reduce the timing of preliminary design stage, to improve the weight and size parameters, to calculate the transient electromagnetic processes for subsequent optimization of parameters of EGR system by criterion of reduced power losses of an automobile engine. KEYWORDS: environmental safety, car, exhaust gas recirculation, system analysis, virtual space, simulation. REFERENCES 1. Schurin, K.V., Tretiak, L.N., Gerasimov, E.M., Volnov, A. S. Harmonization of standards of the European Union and the Russian Federation to assess the impact of road transport on urban ecological systems [Garmonizacija standartov Evropejskogo sojuza i Rossijskoj Federacii po ocenke vlijanija avtotransporta na jekologicheskie sistemy gorodov], Gruzovik, 2012, Iss. 9, pp. 36-44. 2. Schurin, K.V., Tretiak, L.N., Bondarenko, E.V., Volnov, A. S. Regulatory ways in the field of ecological safety of road transport [Puti normativnogo regulirovanija v sfere ekologicheskoj bezopasnosti avtomobil'nogo transporta]. Bulletin of Orenburg State University, 2012, Iss. 10, pp. 176-181. 3. Shipunov, A.G., Yudaev, A.V., Shuvaev, A.A., Kuznetsov, V.M., Privalova T V., Makhonin, V.V. A method for automatic construction of a three -dim ensional geometric model of the product in the geometric modeling system (RF patent № 2325691). - 2008 [Sposob avtomaticheskogo postroenija trehmernoj geometricheskoj modeli izdelija v sisteme geometricheskogo modelirovanija (patent RF № 2325691). - 2008]. 4. Abbasov, A.E., Abbasova, T S. Development and research of 2D and 3D-models in the design of the control system of car recirculation [Razrabotka i issledovanie 2D i 3D-modelej p ri p ro e k tirovanii sistemy upravlenija recirkuljaciej avtomobilja]. Materials of X International scientific and practice conference «Modern European science», June 30 - July 7, 2014. Volume 16. Modern information technologies, Sheffield. Science and education LTD, pp. 5-8 (104 p.) - ISBN 978-966-8736-05-6. 5. Abbasov, A. E., Abbasova, T. S. Visualization and analysis of information in the construction of 3D-models of data for the microprocessor control system [ Vizualizacija i analiz informacii pri postroenii 3D-modelej dannyh dlja mikroprocessornoj sistemy upravlenija] Collection of works of the 14th international scientific and practical conference «Microprocessor, analog and digital systems: design and circuit design, theory and application issues»: South-Russian State Technical University. Novocherkassk