EV–Charger Communication State-Transition Compliance Testing
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Solution Overview
Problem
Existing communication systems between electrically powered vehicles and charging stations lack effective methods to ensure standard compliance and optimize communication processes, leading to inefficiencies and potential interoperability issues.
Innovation Solution
A testing device and method that evaluate communication based on state transitions, determine deviations from defaults, and output data for optimization, using algorithms and potentially artificial intelligence to analyze and optimize communication protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication between vehicles and charging stations is tested manually through test drives, then communication scenarios can be validated in real-world conditions, but the process becomes time-consuming and inefficient
Solution Approach 1:
The patent creates a virtual copy of the communication system using Hardware-in-Loop (HIL) and Software-in-Loop (SIL) simulation environments. These virtual models replicate the behavior of vehicles, charging stations, and communication protocols, allowing comprehensive testing without physical test drives. The simulation models include state machines that mimic the actual communication states and transitions, enabling efficient validation of communication standards compliance while eliminating time-consuming field tests
Solution Approach 2:
The patent implements preliminary testing through simulated communication scenarios before actual deployment. By using HIL and SIL prototypes, the system allows communication protocols and state transitions to be tested in advance under various hypothetical conditions. This preliminary validation identifies potential compliance issues and optimization opportunities before real-world implementation, reducing the need for iterative test drives
2Adaptability or versatility
If communication protocols are strictly standardized, then interoperability between different vehicles and charging stations is ensured, but flexibility for optimization and adaptation is reduced
Solution Approach 1:
The patent implements automated evaluation systems that analyze communication data against standard requirements and provide feedback on compliance status. The system monitors state transitions and communication sequences, comparing them with expected standard behavior. This feedback mechanism identifies deviations and suggests optimizations while maintaining standard compliance, allowing the system to adapt communication strategies without violating interoperability requirements
Solution Approach 2:
The patent uses dynamic state machine models that can adapt their behavior based on tested scenarios. The simulation environment allows the communication protocols to be dynamically adjusted and optimized while maintaining compliance with standards. The system can modify communication strategies, state transition sequences, and data exchange patterns based on performance metrics, providing flexibility within the framework of standard requirements
3Reliability
If comprehensive communication testing is performed to ensure standard compliance, then communication reliability is improved, but the testing complexity and resource requirements increase
Solution Approach 1:
The patent creates a universal testing platform that handles multiple communication standards, protocols, and scenarios through a single HIL/SIL simulation system. The testing device can evaluate different vehicle types, charging station configurations, and communication protocols using the same underlying infrastructure. This multi-functional approach comprehensively tests standard compliance without proportionally increasing system complexity, as the simulation environment reconfigures itself for different test scenarios
Data Source
AI summary
A testing device for testing a communication between at least two participants. The testing device is set up to evaluate the communication on the basis of at least one state transition of at least one of the participants. The evaluation includes the determination of a deviation of the evaluated communication from a default. The default contains information on states and/or state transitions of the at least one participant. The testing device also has an output device that is set up to output first data depending on the evaluation.