Charging pile control device with double processors

Abstract

The invention provides a charging pile control device with double processors. The device comprises the first processor, the second processor and a dual-port RAM; the first processor collects user information, the amount of power provided for an electric vehicle and user operation information; when it is judged that a charging gun is inserted in the electric vehicle, a user selects a start operation and the user information indicates that the balance in a card is sufficient, charge starting information is written into the dual-port RAM; according to the amount of the power provided for the electric vehicle, real-time balance information is obtained, and when the balance in the card is 0 or the user selects a stop operation, charge stopping information is written into the charging information; the second processor controls the charging gun to charge the electric vehicle; the first processor and the second processor monitor each other, and when it is judged that the opposite party fails,the fault party is restarted. According to the charging pile control device, a double-processor structure is adopted, the reaction speed of the charging pile control device is increased, the two processors can monitor each other, faults can be timely discovered and automatically eliminated, and the reliability of a system is improved.

Description

technical field [0001] The invention relates to a dual-processor charging pile control device, which belongs to the technical field of charging piles. Background technique [0002] Charging piles are generally high-power intermittent charging facilities that can provide one to several charging circuits for electric vehicles, and are usually unmanaged public facilities. [0003] The charging pile control circuit is mainly completed by the processor, and the user can self-swipe the card for user authentication, balance inquiry, billing inquiry and other functions, and can also provide voice interaction. The user can select the charging mode according to the instructions on the LCD screen; the electric vehicle charging control controller and the concentrator use the CAN bus for data interaction, and the concentrator and the server platform use the wired Internet or wireless GPRS network for data interaction; the battery management system (BMS) uses To monitor the working statu...

AI Technical Summary

Problems solved by technology

[0004] At present, the main control board of charging piles on the market uses a single MCU system, and all control, monitoring, and calculations are completed by the MCU, resulting in: the operating speed of the first protection depends largely on the speed of the MCU, which requires high-speed sampling The system seems to be unable to do what it wants; when choosing an algorithm, it is necessary to give up the scheme that has a relatively satisfactory performance but a large amount of calculation

[0005] From the perspective of operation and reliability, there are poor fault tolerance and low reliability, and damage to any component after the sample / hold device may cause the device to stop working; each protection function in the entire set of protection is undertaken by one MCU, and any program Running and flying may lead to confusion of the whole set of protection work; for a single MCU system structure, any addition of new functions requires consideration and adjustment of the original device, making it difficult to develop and expand new functions; when the main control chip fails, the system immediately paralyzes, Hazard to equipment and personal safety

Images