Research of the feasibility of installing inertial flywheels in hybrid car transmissions
Students Name: Lopatiuk Ivan Volodymyrovych
Qualification Level: magister
Speciality: Motor Vehicle Transport
Institute: Institute of Mechanical Engineering and Transport
Mode of Study: full
Academic Year: 2022-2023 н.р.
Language of Defence: ukrainian
Abstract: Energy and power are increasingly heard when a new car is launched on the market. In recent years, the rapid development of technologies has made it possible to introduce new and improve old ways of generating useful energy. However, after the transformation of this energy, it is important to be able to accumulate it and hold it for a certain period of time until there is a demand for it. Many car manufacturers are refocusing on the development of new technologies aimed at creating more sustainable energy systems. Efficient and reliable hybrid and electric vehicles will be a key technology in this transformation. However, electric energy storage components are still limited by their low specific energy density and long recharging times compared to vehicles equipped with an internal combustion engine. Energy storage in an efficient and safe way, on mobile vehicles, is a very important issue that has been worked on for more than a dozen years. To date, developments are underway to improve and use energy storage systems in several directions, namely: mechanical, electrical, chemical, biological, thermal and nuclear. In the master’s qualification work, mechanical inertial energy accumulators that interact with an electric motor/generator are considered. Special attention is paid to the structural performance and interaction with the car’s hybrid power plants. An important study is devoted to the effectiveness of the flywheel when braking a vehicle, because braking energy is wasted, and its use will improve the performance of the car as a whole. In addition, research methods for inertial energy storage devices are described. First of all, the calculated parameters of the flywheel and their influence on its performance are considered. Taking into account all the positive and negative aspects of the inertial flywheel, its effectiveness in the drive of the hybrid power unit of the car was considered. For the reliable operation of the power unit, a study of the operation of the inertial flywheel depending on the change of load modes in the power unit and the conversion of kinetic energy into electrical energy and vice versa was carried out. On the basis of the conducted research, it formulated conclusions and recommendations regarding the further use of inertial flywheels in hybrid power plants with the appropriate structural scheme of construction, depending on the selected operating conditions. The purpose of the work is to investigate the feasibility of installing inertial flywheels in hybrid car transmissions. Object of research: technical and operational parameters of hybrid car transmissions. Research subject: energy efficiency of inertial flywheels in hybrid car transmissions. Keywords: inertial flywheel, hybrid power plant, driving cycles; operational parameters. 1. X. Luo et al., “Overview of Current Development in Electrical Energy Storage Technologies and the Application Potential in Power System Operation,” Applied Energy, Vol 137, January 1, 2015 pp. 2. Goncalves de Oliveira, J. 2011. Power Control Systems ina Flywheel based All-Electric Driveline. Acta Universitatis Upsaliensis. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 844. 2011. 102 pp.