Abstract
Units of modern cars require an uninterrupted supply of electricity of the required quality, therefore, the prompt determination of the technical condition of the power supply system (SE) is an urgent task. During the operation of the car, there is a dynamic redistribution of electricity consumed for the needs of consumers between the car generator and the storage battery (AKB). The efficiency of the balance of electricity on board the car is influenced not only by the power of consumers, the mode of movement of the car, weather and climatic factors, but also by the technical condition of the generator and battery, however, insufficient attention has been paid to this. It has been established that the currents of the generator, the field winding and the battery, as well as the voltage of the on-board network, can serve as indicators of the technical condition of the vehicle’s ESS. The purpose of the article is to develop typical loading modes of a vehicle’s solar cell and a technique for their modeling in laboratory conditions. The leading method for solving this problem is fixing the ESS parameters using an analog data recorder with variations in the load current and the generator rotor speed. In the course of the experiment, the loading modes were changed in the order of increasing the generator rotor speed. The nature of the change in the parameters of the solar cell in the case of a working generator and a charged battery has been determined. The efficiency of the solar cell can be indirectly estimated by the ratio of the areas limited by the charging and discharging currents of the battery of the dynamic characteristic curve. With a load current of 10 A, the energy supplied by the battery generator exceeds the energy consumed for the work of consumers. When the load current increases to 15 A, the energy balance shifts towards the discharge part. The experimentally established dependences of the change in the parameters of the solar cell with variations in the load and speed modes of operation can be considered a scientific novelty. The practical significance of the research carried out is to increase the reliability of diagnosing SE based on the analysis of indicators of its technical condition. Further research will be aimed at determining changes in the parameters of the vehicle’s ESS in the process of occurrence and development of generator and battery malfunctions.
Highlights
Введение Система электроснабжения (СЭ) является наиболее ответственной системой электрооборудования автомобиля, задачей которой является обеспечение потребителей бортовой сети электроэнергией необходимого качества
Units of modern cars require an uninterrupted supply of electricity of the required quality, the prompt determination of the technical condition of the power supply system (SE) is an urgent task
During the operation of the car, there is a dynamic redistribution of electricity consumed for the needs of consumers between the car generator and the storage battery (AKB)
Summary
Введение Система электроснабжения (СЭ) является наиболее ответственной системой электрооборудования автомобиля, задачей которой является обеспечение потребителей бортовой сети электроэнергией необходимого качества. The efficiency of the balance of electricity on board the car is influenced by the power of consumers, the mode of movement of the car, weather and climatic factors, and by the technical condition of the generator and battery, insufficient attention has been paid to this. Анализ параметров системы электроснабжения автомобилей В общем случае работу СЭ автомобиля можно охарактеризовать следующими параметрами (рисунок 2): сила тока генератора IГ, сила тока обмотки возбуждения генератора IВ, сила тока АКБ IБ (в зарядном или разрядном режиме), напряжение бортовой сети U и частота вращения ротора генератора n [8, 9, 14]. Дальнейшее развитие неисправности приводит к снижению напряжения и силы тока генератора, что приведёт к прогрессирующему разряду АКБ и прекращению работы ответственных потребителей.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
