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The technological development of on-board chargers has provided a strong support for the practical and popular use of new energy vehicles

wallpapers News 2021-05-12
Overview of EV on-board charger
EV On-board chargers refer to the chargers fixed on electric vehicles, which are capable of safely and automatically charging the power batteries of electric vehicles. According to the data provided by the battery management system (BMS), the chargers can dynamically adjust the charging current or voltage parameters, perform the corresponding actions, and complete the charging process. The development of on-board charger technology has played a driving role in the popularization of new energy vehicles. On-board chargers have higher requirements on charging power, charging efficiency, weight, volume, cost and reliability. In order to realize the intelligent, miniaturized, lightweight and high-efficiency of on-board chargers, the relevant research and development work has made great progress. The research direction mainly focuses on the intelligent charging, battery charge and discharge safety management, improving the efficiency and power density of on-board chargers, and realizing the miniaturization of on-board chargers.
The development of EV on-board chargers
The technological development of on-board chargers has provided a strong support for the practical and popular use of new energy vehicles. According to whether the charging system is in direct contact with the public grid, it can be divided into contact charging system and induction charging system.
According to whether the charging system is installed on the vehicle, it is divided into on-board charging system and non-on-board charging system; According to the charging time, it is divided into slow charging system and final charging system. The performance characteristics of on-board charger, AC charging pile and DC charging pile are analyzed and compared. It introduces and analyzes the common charging methods of on-board chargers, including constant voltage charging, constant current charging, phased charging, pulse charging, etc., and explains the technical requirements of on-board chargers, such as general regulations, environmental requirements, input voltage and frequency, etc. The second is to analyze the current situation of domestic on-board charger technology. The fourth is to analyze the development trend of the on-board car charging sweep, with the progress of technology, the on-board charger is toward the direction of two-way charging and discharging, intelligence, integration and so on.
EV On-board charger system
According to the time spent on charging, the charger is divided into slow charging system and fast charging system, respectively corresponding to AC power supply and DC power supply. The charging system is mainly composed of cables from outside the vehicle to the power supply end, charging interface and cables, on-board charging, high-voltage wiring harness, high-voltage distribution equipment, power battery and its controller, etc. The charging pile or household AC power supply is connected with the on-board charger through the vehicle interface and wiring harness to convert the AC 220V power supply into direct current to charge the power battery. During the charging process, CAN communication and interaction between the on-board charger and the BMS CAN be carried out to ensure the safety of the charging process.
EV On-board charger supplier
Grasen EV on-board charger is mainly used for hybrid vehicles, pure electric vehicles, electric buses, electric logistics vehicles and other new energy vehicles, and is suitable for charging lithium iron phosphate, lithium manganese acid, lead acid and other vehicle power batteries. Start your EV charging station businesses with Grasen. For a no-obligation quote latest price of EV On-board charger or technical support, please contact us and fill in your details, and we’ll get back to you within 24 hours.