EV Charging Control Across CCS, CHAdeMO, and China DC Standards
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Solution Overview
Problem
The development of electric vehicle charging devices is hindered by the need to accommodate different charging standards across countries and automobile companies, leading to increased costs and time due to the necessity of customizing battery packs and management systems.
Innovation Solution
A charging control device for electric vehicles that includes a charging inlet, control module, and charger, capable of determining and switching between various charging modes, and utilizing multiple communication channels to adapt to different standards, such as CCS, CHAdeMO, and China DC, while integrating a control pilot, proximity detection, and protective earth ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging devices are customized for different charging standards, then compatibility with specific standards is improved, but device complexity and development costs increase
Solution Approach 1:
The charging device incorporates multiple communication channels (first communication channel for PLC, second communication channel for CAN) within a single device, enabling it to support multiple charging standards (CCS, CHAdeMO, China DC) simultaneously. This multi-functional design allows one device to serve multiple purposes across different standards without requiring separate customized devices for each standard.
Solution Approach 2:
The system dynamically selects and activates appropriate communication channels based on the detected charging standard. The controller automatically switches between PLC-based communication and CAN-based communication depending on which standard is being used, making the device adaptable and flexible rather than static and fixed to a single standard.
2Adaptability or versatility
If charging devices are customized for different charging standards, then compatibility with specific standards is improved, but development time increases
Solution Approach 1:
By designing a universal charging device that integrates multiple communication channels (PLC and CAN) from the outset, the system eliminates the need for separate development cycles for each charging standard. The multi-functional architecture allows a single development effort to produce a device compatible with multiple standards, significantly reducing total development time.
Solution Approach 2:
The device is pre-configured with multiple communication channels and protocols during the initial design phase. By preparing the device in advance with built-in support for multiple standards, the system avoids time-consuming customization and adaptation work that would be required if the device were designed for a single standard and later modified.
3Adaptability or versatility
If multiple communication channels are integrated, then adaptability to different standards is improved, but device complexity increases
Solution Approach 1:
The controller acts as an intermediary that manages communication between the external EVSE and the battery management system. It receives signals through either the first communication channel (PLC) or second communication channel (CAN), processes them appropriately, and forwards relevant information to the battery management system, thereby simplifying the overall system architecture despite having multiple communication paths.
Solution Approach 2:
The communication system is segmented into distinct channels with dedicated functions. The first communication channel handles PLC-based communication for certain standards, while the second communication channel handles CAN-based communication for other standards. This segmentation allows each channel to be optimized independently while maintaining overall system manageability.
Data Source
AI summary
A charging control system for an electric vehicle, the charging control system including a charging control device for the electric vehicle, and an EVSE (electric vehicle supply equipment) comprising cable and transmitting a signal to the charging control device for the electric vehicle, wherein the charging control device for the electric vehicle including a charging inlet configured to receive charging information and power from the EVSE, a control module configured to determine a charging mode based on the charging information and output a control signal in accordance with the determined charging mode, and a charger configured to charge a battery of the electric vehicle in accordance with the control signal of the control module, wherein the charging mode is determined by a charging standard of the EVSE.