EV Charging Protocol Version Priority for Reliable Power Control
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Solution Overview
Problem
Existing electrified vehicle systems face difficulties in performing power control, such as charging, when compatible with multiple versions of a communication standard due to the potential random selection of unsuitable versions, leading to communication failures.
Innovation Solution
The electrified vehicle system incorporates a control unit that selects the version for power control protocol communication based on predefined priority levels, switching to alternative versions if initial communication fails, and utilizes a server to manage information on past communication results and priority levels to optimize version selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication unit is compatible with multiple versions of the communication standard, then the adaptability of the electrified vehicle is improved, but the reliability of power control protocol communication deteriorates due to random version selection
Solution Approach 1:
The control unit performs preliminary actions by setting priority levels for different communication standard versions in advance. Before actual power control protocol communication occurs, the system has already prepared a selection hierarchy, enabling it to choose the most appropriate version without random selection, thus maintaining both multi-version compatibility and communication reliability
2Device complexity
If the control unit randomly selects a communication version, then the device complexity is reduced, but the productivity of charging process deteriorates due to communication failures
Solution Approach 1:
The control unit manages complexity by changing the parameter of version selection from random to priority-based. The priority levels serve as a simple parameter structure that guides version selection, avoiding complex decision-making algorithms while ensuring communication success and maintaining charging productivity
Data Source
AI summary
An electrified vehicle and a system of the electrified vehicle can perform power control including either or both of charging from a power station compatible with at least one version of a predetermined communication standard and power supply to the power station. The electrified vehicle includes a communication unit compatible with a plurality of the versions of the predetermined communication standard. The electrified vehicle further includes a control unit configured to control the communication unit in such a manner that power control protocol communication between the electrified vehicle and the power station is performed using the predetermined communication standard. Priority levels are set in advance for the plurality of the versions. The control unit is configured to decide the version to be used for the power control protocol communication based on the priority levels.