Vehicle Charging Controller With Communication Fallback Logic
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Solution Overview
Problem
Conventional vehicle controllers face challenges in selecting the appropriate communication method for energy supply between vehicles equipped with both first and second communication devices and energy supply devices, particularly when the energy supply device has only the second communication device, leading to inefficiencies in energy transfer.
Innovation Solution
The vehicle controller prioritizes energy supply using the first communication device over the second, attempting communication with the energy supply device using the first device initially and switching to the second device if no response is received, with periodic checks to revert to the first device if the energy supply device recovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle controller prioritizes communication attempts using the first communication device, then communication reliability is improved, but communication time increases when the energy supply device only supports the second communication device
Solution Approach 1:
The vehicle controller performs a preliminary action by attempting communication with the energy supply device using the first communication device before using the second communication device. This preliminary attempt prioritizes more reliable bidirectional communication, and only if that fails does the system proceed to alternative communication methods, thus ensuring reliability while managing time efficiently.
2Adaptability or versatility
If the vehicle controller uses bidirectional communication (first communication device), then communication appropriateness is improved, but device complexity increases due to supporting multiple communication devices
Solution Approach 1:
The vehicle controller dynamically selects which communication device to use based on the capabilities of the energy supply device. Rather than statically configuring a single communication method or always using all available devices, the system adapts its communication approach in real-time, choosing the most appropriate device for each specific situation, thus improving adaptability without permanently increasing operational complexity.
3Adaptability or versatility
If the vehicle controller attempts communication with multiple communication devices, then adaptability to different energy supply devices is improved, but control complexity increases
Solution Approach 1:
The vehicle controller implements a staged communication approach where it first attempts communication using the first communication device (preferred bidirectional method). Only when this preliminary attempt fails does the controller proceed to try the second communication device. This preliminary action structure provides adaptability to different energy supply devices while keeping control logic relatively simple through a clear hierarchical decision process.
Data Source
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AI summary
The vehicle controller (40) is programmed to make a communication attempt from the first communication device 42) to an energy supply device when the energy supply device supplies energy to the energy storage device (22) from an external energy supply device; supply energy with communication between the first communication device (42) and the energy supply device when a response is received from the energy supply device to the communication attempt; and supply energy with communication between the second communication device (44) and the energy supply device when no response is received from the energy supply device to the communication attempt.