Electric Vehicle Fleet Communication via Cloud and Local Wireless
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Solution Overview
Problem
Current electric vehicle communication systems lack efficient methods for distributing information between vehicles in a fleet, particularly in reducing data usage and improving operational efficiency while ensuring secure communication.
Innovation Solution
An electric vehicle with cloud connectivity and a local wireless communication system that verifies messages through public and private keys, allowing secure communication and data distribution within the fleet, reducing data usage and enhancing operational efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If cloud connectivity is used for fleet communication, then information distribution capability is improved, but data usage and operational complexity increase
Solution Approach 1:
The system segments information distribution by implementing two separate communication modes: cloud connectivity for comprehensive fleet-wide information distribution, and local wireless communication for direct vehicle-to-vehicle information sharing. This segmentation allows the system to leverage the advantages of both approaches while mitigating their individual drawbacks.
Solution Approach 2:
The patent introduces a hybrid communication architecture that acts as an intermediary between cloud-based and local wireless communication systems. This intermediary layer enables vehicles to switch between cloud and local communication depending on availability and requirements, reducing overall system complexity while maintaining information distribution capability.
2Reliability
If verification mechanisms are implemented for message security, then communication security is improved, but processing time and operational complexity increase
Solution Approach 1:
The system performs preliminary verification by having vehicles report their status and presence of other fleet vehicles in advance. This pre-verification approach allows the system to establish trust relationships before critical communications occur, reducing processing time during actual message verification while maintaining security.
Solution Approach 2:
The patent implements selective verification where not all messages require full cryptographic verification. Instead, the system applies verification mechanisms based on message criticality and source reliability, performing partial verification for routine communications and full verification only when necessary, thereby reducing overall processing time while maintaining adequate security.
Data Source
AI summary
An electric vehicle is coupled to communicate with the cloud. The cloud is coupled to and communicates with the electric vehicle. The cloud includes a server. The electric vehicle is configured to distribute information between electric vehicles in a fleet. The electric vehicle has cloud connectivity and a second local wireless communication to communication information to the fleet of electric vehicles. When a message is received by the first electric vehicle, the first and second components provide a verification of their existence. The first and second components decrypt and verify their parts of the message. When either the first or second component fails to provide a verification, the electric vehicle is not activated.