EV Charging Socket Bus Node for Multi-Standard Control
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Solution Overview
Problem
Existing electric vehicle charging systems require multiple country-specific interfaces and wiring harnesses for different charging technologies, leading to complexity and unused resources in vehicle controllers.
Innovation Solution
A charging socket with power and signal contacts that use a signal converter and bus node connected to a data bus to communicate with the vehicle controller, allowing for control signals to be transmitted and received, enabling compatibility with various charging technologies without the need for technology-specific interfaces in the vehicle controller.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple country-specific interfaces and wiring harnesses are used for different charging technologies, then compatibility with various charging standards is achieved, but device complexity and wiring harness complexity increase
Solution Approach 1:
The vehicle controller is designed with a universal data bus interface that can communicate with charging sockets of different technologies (AC, DC, different regional standards) through a single unified communication protocol, eliminating the need for multiple technology-specific interfaces and reducing wiring harness complexity
Solution Approach 2:
A signal converter acts as an intermediary between the charging socket's technology-specific signal contacts and the vehicle controller's universal data bus interface, translating different charging technology protocols into a common communication format that the vehicle controller can process uniformly
2Adaptability or versatility
If multiple technology-specific interfaces are installed in the vehicle controller, then support for different charging standards is enabled, but loss of substance and unused resources increase
Solution Approach 1:
The vehicle controller implements a single universal data bus interface that can handle multiple charging technologies through software configuration and protocol translation, eliminating the need to install and maintain multiple unused hardware interfaces for different charging standards
Solution Approach 2:
The system changes the communication parameters and protocols dynamically based on the detected charging technology type, allowing a single interface to adapt its behavior to match different charging standards rather than requiring dedicated hardware for each standard
3Reliability
If charging technology-specific signal contacts are used, then precise control of charging current is achieved, but device complexity increases
Solution Approach 1:
The signal converter serves as an intermediary that receives control signals from the charging socket's technology-specific signal contacts and translates them into standardized data bus commands, maintaining precise control functionality while reducing the complexity burden on the vehicle controller
Data Source
AI summary
A charging socket installed or installable in an electric vehicle for receiving a charging plug for charging a traction energy store of the electric vehicle with an electrical charging current, the charging socket including: power contacts for contacting corresponding power contacts of the charging plug in a state received in the charging socket for electrically conducting the charging current; charging technology-specific signal contacts for contacting corresponding signal contacts of the charging plug in a state received in the charging socket for controlling the charging current; a signal converter for transmitting and/or receiving control signals for controlling the charging current at the charging technology-specific signal contacts; and a bus node including a connection to a data bus, the bus node communicating via the data bus with a vehicle controller of the electric vehicle and to control the signal converter to: transmit the control signals as transmitted control signals.