Research and diagnostics of electric car BMW I3 electric systems

Abstract

The problem. The article considers the problem of increasing the efficiency of the use of electric vehicles. This is done by studying and diagnosing electrical equipment of the BMW i3 electric car. Goal. The purpose of the work is to increase the efficiency of the use of electric vehicles by studying and diagnosing electrical equipment of BMW i3 elec-tric vehicle. Methodology. Systematic, theoretical analysis of the methods applied to an electric car. The methodology is based on the integrated approach to studying the BMW i3. The research of the main components of the electrical equipment of the electric vehicle was carried out, its technical characteristics and the principle of operation of the power system were analyzed, issues of charging a high-voltage battery were considered. System power control functions were investigated. The diagnostics of BMW i3 power system in the conditions of the service station was performed. Results. It is established that the purpose of the power control program is to provide sufficient level of the battery charge in different conditions of car operation. It is determined that for the BMW i3 you can use 4 different types of charging. It has been discovered that an emergency situation caused by a discharged battery or problems in the on-board power grid may have various causes, which in most cases do not relate to a high-voltage rechargeable battery. Originality. In the article a comprehensive study of the BMW i3 electric vehicle was conducted. Practical value. New original knowledge has been gained that will improve the performance of BMW i3 electric vehicle.

Keywords

• electric car
• hybrid electric car
• BMW i3
• diagnostics
• power system
• electrical equipment
• charging system
• charging interface module
• high-voltage traction battery
• electric motor