Integrated Charging Pile Control with Direct BMS Communication
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Solution Overview
Problem
Conventional charging piles face complexities in communication and high costs due to intricate communication processes between micro control units, power control units, and controllers, leading to inefficiencies and increased expenses.
Innovation Solution
An integrated charging device with a main controller, communication module, and AC/DC converters that directly communicate with the Battery Management System (BMS), simplifying internal communication within the charging pile and reducing the need for auxiliary power supplies, thereby streamlining power distribution and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a charging pile includes multiple charging devices with separate micro control units, power control units, and controllers, then charging control and power control can be performed, but communication becomes complicated and cost increases
Solution Approach 1:
The patent combines the micro control unit, power control unit, and charging device controller into a single integrated control unit. This merging eliminates the need for multiple separate control components and their associated communication interfaces, thereby simplifying the communication structure while retaining full charging control and power control capabilities.
Solution Approach 2:
The integrated control unit performs multiple functions that were previously distributed across separate units: it handles micro control operations, power control, and charging device control simultaneously. This multi-functional design reduces the overall system complexity by consolidating control functions into a single universal controller.
2Reliability
If multiple separate control units are used in charging devices, then specific control functions can be performed, but cost increases due to more components
Solution Approach 1:
The patent merges multiple control units into one integrated control unit, reducing the number of components while maintaining all necessary control functions. This consolidation decreases system complexity and potential failure points from multiple separate units while preserving control reliability through unified management.
3Measurement precision
If separate power control and charging control units are used, then precise control can be achieved, but communication complexity and cost increase
Solution Approach 1:
The patent integrates power control and charging control into a single control unit, eliminating the need for multiple communication levels between separate units. The integrated unit maintains precise control capabilities by internally managing both power and charging parameters without requiring external communication protocols between separate controllers.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution simplifies communication within the charging pile, reduces costs by eliminating unnecessary components, and enhances integration, while ensuring compatibility with various voltage levels and efficient power supply to meet load demands.
Implementation Method 1
The controller is configured to control the main circuit to convert alternating current into direct current (AC to DC) based on a determined parameter to charge a load
Data Source
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AI summary
An integrated charging device, a charging pile and a method for controlling the charging pile are provided. In the integrated charging device, a controller is communicatively connected to a first end of a communication module. A second end of the communication module includes an external communication port. The external communication port is configured to be communicatively connected to a BMS of a load via a communication line in a charging gun connected to the integrated charging device. That is, the integrated charging device is capable of communicating with the BMS, so that the controller directly communicates with the BMS, without complicated transfer by an MCU and a power control unit in the conventional technology, thereby simplifying communication in the charging pile including the integrated charging device and reducing cost.