The charging pile shall be able to charge the electric vehicle safely and automatically. The charging pile can dynamically adjust the charging parameters, execute corresponding actions and complete the charging process according to the data provided by the BMS of the electric vehicle. The charging post has an input device for external manual control, which can set the parameters of the charging post. The charging pile shall be equipped with AC meter and DC meter, with accuracy not less than 0.5 and charging rate not less than 0.5C.
The charging post shall have the function of communicating with BMS through the CAN network, which is used to judge the battery type and obtain the parameters of the power battery system and the status parameters of the power battery before and during charging; The reserved charging pile can communicate with the charging station monitoring system through CAN or industrial Ethernet to meet the access requirements of Shenzhen unified charging operation management platform.
The charging post shall be able to judge the charging connector Charging pile cable Whether the connection is correct. The charging pile is allowed to start the charging process only after the charging connector is correctly connected with the electric vehicle battery system; When the charging pile detects that the connection with the electric vehicle battery system is abnormal, it will stop charging immediately and send an alarm message.
The DC charging pile shall be equipped with a human-computer interface with friendly interface and convenient operation to realize human-computer interaction and on-site control functions: the DC charging pile can realize on-site startup, emergency stop and charging parameter setting functions; The charging control mode can be selected automatically or manually (BMS control or charging pile control); With operation status and fault status display; Backlight lighting, operation status monitoring and other functions. The key positions of the equipment shall be printed with the LOGO required by the Tenderee. The charging mode of electric vehicle shall be able to select automatic charging, fixed time, fixed quantity, fixed amount and other charging modes. During charging, the following main information is displayed: battery type, charging voltage, charging current, charged time, remaining time, charged amount, etc. Manual input information will be displayed during manual setting, and corresponding prompt information will be displayed in case of failure.
The charging pile shall have charging protection functions: communication abnormality protection, insulation impedance inspection protection, emergency shutdown protection, charging current abnormality protection, charging amount abnormality protection, voltage abnormality protection, leakage protection, charging gun over temperature protection, and battery temperature abnormality protection.
The main circuit of AC measurement of the charging pile shall adopt the molded case circuit breaker of type A leakage products to prevent leakage hazards and ensure the personal safety of maintenance personnel.
