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The control logic of communication interface chip of DC charging pile

The control logic of DC charging pile communication interface chip is the core to ensure effective communication and coordinated operation between charging pile and electric vehicle. The following is a detailed description of the concept, role, and working principle of control logic:

Main component

Concept:

The control logic of the communication interface chip of DC charging pile refers to a series of instructions and programs integrated in the communication interface chip, which are responsible for managing the data exchange, state monitoring and fault diagnosis during the charging process. The control logic ensures the safety, reliability and efficiency of the charging process.

Function:

1. Data exchange management: The control logic manages the information exchange between the charging pile and the electric vehicle, including charging parameters, battery status and fault information.

2. Status monitoring: real-time monitoring of the charging status, including voltage, current, temperature and other key parameters, to ensure that the charging process is carried out within a safe range.

3. Fault diagnosis: Detect and respond to various abnormal conditions, such as over current, over voltage, over temperature, etc., to prevent damage to charging equipment and electric vehicles.

4. Charging control: According to the demand of electric vehicles and the ability of charging piles, dynamic adjustment of charging parameters to optimize charging efficiency.

Working Principle:

1. Communication protocol management: The control logic implements the communication protocol stipulated by standards such as GB/T 20234.3-2015, and communicates with electric vehicles through the CAN bus.

2. Signal conversion and routing: The control logic is responsible for converting the control signal of the charging pile into a signal that can be recognized by the electric vehicle and routed to the corresponding control unit.

3. State machine control: The control logic usually adopts the state machine model and executes different control strategies according to different charging stages (such as connection confirmation, charging preparation, charging execution, charging end).

4. Protection circuit coordination: The control logic coordinates the work of over-current, over-voltage, over-temperature and other protection circuits to ensure that the power supply can be cut off in time or measures can be taken to protect the equipment in abnormal circumstances.

5. Real-time parameter adjustment: The control logic adjusts the charging voltage and current in real time according to the feedback of the electric vehicle and the data of the battery management system (BMS) to adapt to different charging needs.

6. Event processing: The control logic handles various events, such as plug connection, button operation, communication interruption, etc., to ensure the continuity and safety of the charging process.

Sum up

Through the above control logic, the DC charging pile communication interface chip can ensure the intelligence and automation of the charging process, improve the charging efficiency, and ensure the charging safety.

DC CHARGING PIlE SERIES

DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.

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