To the issue of calculation of the traction battery charging balance of the vehicle combined power unit and the choice of its power

The problem of the electric vehicles development at the present stage in Russia has become one of the main, since increasing the energy performance and reducing emissions of harmful substances can be solved by a mass transition to vehicles using combined propulsion systems. The importance of this trend is also due to the need to comply with the requirements of EU Directive No. 443, which establish regulatory values for reducing CO2 emissions for vehicles. The accumulated experience in the operation of vehicles with electric drive suggests that one of the main ways to improve the combined power plants is the correct choice of parameters of the power plant and the algorithm of its work. In the literature there is no generally accepted method of calculating the parameters of the vehicle combined power unit, there is no single approach to this issue and the theoretical justifications for the choice of its electromechanical devices parameters. All this greatly hinders the development of domestic technology samples, complicates the understanding of specialists. In this regard, the article describes the method of calculating the charging balance of the combined power unit of the vehicle, the choice of power and energy of the traction batter. The efficiency of the combined power unit is determined. The calculation of the energy balance is made with the determination of the amount of energy expended by the power plant on the movement of the vehicle in individual stages of the urban cycle of motion and on the accumulation of energy by the internal combustion engine traction battery and the energy recovery during braking. The criteria for selecting the algorithm of the combined power plant of the vehicle, and the parameters that determine the charging balance of the traction battery in terms of improving the energy efficiency of the combined power plant are considered. By calculation, the dependence of the efficiency of the combined power plant on its charging balance has been obtained. The analysis of the changes introduced by the models of Japanese vehicles with combined power plants in relation to the traction batteries installed on them and the comparison of statistical data with the calculated ones.

electric vehicles, energy characteristics, traction battery, charge balance, energy efficiency

1. Вайсблюм М.Е. Новые тенденции в развитии требований ЕЭК ООН в отношении экологических показателей АТС и устанавливаемых на них двигателей // Журнал ААИ. - 2011. - № 3 (68). - С. 14-19.

2. Петров Р.И. Составят ли электромобили и подключаемые к электросети гибридные автомобили РHEV конкуренцию традиционным ДВС? // Журнал ААИ. - 2015. - № 6 (95). - С. 12-18.

3. Busch W., Bohn D., Burgartz H., Hoffmann K., Smith D. Уменьшение содержания вредных веществ. -Neckarsulm: MSI Motor Service International GmbH. -73 с.

4. Кутенёв В.Ф., Кисуленко Б.В., Шюте Ю.В. Экологическая безопасность автомобилей с двигателями внутреннего сгорания. - М.: Экология, Машиностроение, 2009. - 253 с.

5. REVUE AUTOMOBIL. T-TOUCH-COM. -2015. - 594 p.

6. Лежнев Л.Ю. Улучшение топливно-экономических и экологических показателей двигателей внутреннего сгорания в составе комбинированных энергетических установок автотранспортных средств: автореферат дисс.. канд. техн. наук. - Москва: ГНЦ РФ ФГУП «НАМИ», 2005. - 23 с.

7. Бахмутов С.В., Селифонов В.В., Ломакин В.В., Круташов А.В., Карпухин К.Е., Баулина Е.Е. Автомобили с гибридной силовой установкой. Учебное пособие для вузов. - М.: МГТУ «МАМИ», 2009. - 136 с.

8. Ломакин В.В., Карпухин К.Е., Кондрашов В.Н. Тенденции развития автомобилестроения: учебное пособие / изд. 2-е перераб. и доп. - М.: МГТУ «МАМИ», 2009. - 153 с.

9. Карпухин К.Е. Принципы и алгоритм управления автомобилем с гибридной силовой установкой: дисс.. канд. техн. наук. - М.: МГТУ «МАМИ», 2008. - 23 с.