The thermal management and regulation function of DC charging pile...
Introduction to input/output interface of DC charging pile microcontroller
The input/output interface of the DC charging pile microcontroller is the bridge between it and the outside world, and they are responsible for receiving external signals and sending control instructions to external devices. The following is the product introduction of the input/output interface of the DC charging pile microcontroller:
Main component
Concept:
The input/output interface of a DC charging pile microcontroller is a set of circuits and protocols that allow the microcontroller to exchange data with the outside world. These interfaces include but are not limited to USB interface, CC1 detection, gun lock control, DO interface, LED indicator light, DI interface, voltage sampling, current sampling, temperature sampling, PWM output and CP sampling, CAN interface, RS485 interface, RS232 interface and Ethernet interface .
Function:
Data acquisition: Through analog signal acquisition ports, such as voltage sampling, current sampling and temperature sampling, the microcontroller can monitor key parameters of the charging pile in real time to ensure the safety and efficiency of the charging process.
Device control: Through digital I/O interfaces, such as gun lock control and LED indicators, the microcontroller can control the physical devices of the charging pile, such as locking the charging gun or displaying the charging status.
Communication interface: Through the CAN interface, RS485 interface, RS232 interface and Ethernet interface, the microcontroller communicates with other system components, such as communication with the server, to achieve remote monitoring and control.
User interaction: Through the HMI touch screen, users can interact with the charging pile, select the charging mode, and view the charging status and cost.
Working Principle:
Signal detection: The microcontroller detects external signals through its I/O port, such as the charging connection status through the CC/CC2 resistance detection circuit, or the maximum power supply capacity of the power supply device through the PWM signal detection port.
Data processing: The signal received by the microcontroller is converted into digital data, which is then processed by the microcontroller, such as converting an analog signal to a digital signal through an ADC.
Control execution: The processed data is used to perform specific control logic, such as adjusting charging parameters based on sampled voltages and currents, or stopping charging if an anomaly is detected.
Communication coordination: The microcontroller works in coordination with other system components through its communication interface, such as the message handshake with the non-on-board charger through the CAN bus, to ensure the smooth charging process.
Sum up
The input/output interface of the DC charging pile microcontroller is the key technology to realize the intelligence and automation of the charging pile, they ensure that the charging pile can flexibly interact with the user, the vehicle and the back office system, while accurately controlling the charging process. The design and implementation of these interfaces reflect the advanced nature of DC charging pile in functionalization and intelligence.
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.
Extended reading
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