EV Charging Control for Multi-Standard Mode Switching
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Solution Overview
Problem
The existing charging systems for electric vehicles face challenges due to the varying standards adopted across different countries and automobile companies, leading to increased costs and time required for developing charging devices, battery packs, and management systems that comply with these standards.
Innovation Solution
A charging control device and method for electric vehicles that include a charging inlet to receive charging information and power from EVSE, a control module to determine the charging mode based on the received information and output control signals, and a charger to charge the vehicle's battery according to the determined mode. This device supports multiple charging standards, including combo, CHAdeMO, AC 3-phase, and GB/T modes, through various communication protocols such as PLC, PWM, and CAN.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging devices are developed for each different charging standard, then compatibility with specific standards is improved, but device complexity and development costs increase
Solution Approach 1:
The charging device incorporates multiple charging mode support (Combo mode, CHAdeMO mode, AC 3-phase mode, GB/T mode) within a single device architecture. The control module automatically detects the charging standard and switches between different communication protocols and charging parameters, enabling one device to serve multiple charging standards without requiring separate dedicated devices for each standard.
Solution Approach 2:
The charging device dynamically adapts its operation based on the detected charging mode. The control module changes communication protocols, voltage/current parameters, and control signals according to the identified charging standard, allowing the device to flexibly adjust its behavior rather than requiring fixed hardware configurations for each standard.
2Reliability
If charging devices are developed for each different charging standard, then compliance with specific standards is improved, but development time increases
Solution Approach 1:
A single charging device design incorporates support for multiple charging standards (Combo, CHAdeMO, AC 3-phase, GB/T) through software-controlled adaptability rather than requiring separate hardware designs for each standard. This universal approach significantly reduces development time while maintaining compliance with all supported standards through standardized control algorithms and communication protocol implementations.
3Adaptability or versatility
If multiple charging modes are supported, then versatility is improved, but control complexity increases
Solution Approach 1:
The control module automatically detects the charging standard and configures appropriate parameters without requiring manual intervention or complex external control systems. The device performs self-identification of the charging mode and autonomously switches between communication protocols and charging parameters, simplifying the control architecture despite supporting multiple charging modes.
Solution Approach 2:
The charging device incorporates detection mechanisms that provide feedback about the connected charging standard, enabling the control module to automatically adjust its operation. This feedback loop allows the system to identify the charging mode and select appropriate control parameters dynamically, reducing the need for complex pre-programming and manual configuration.
Data Source
AI summary
A charging control device mounted inside an electric vehicle, the charging control device including a communication channel configured to be connected with an EVSE (electric vehicle supply equipment), a controller configured to be connected with the communication channel, and an internal power protection unit connected with a battery of the electric vehicle, wherein the communication channel is based on a protocol of supporting a power line communication (PLC) or a controller area network (CAN), wherein the controller includes a task unit, the task unit operating based on a charging mode of a charging standard.