V2V EV Charging Coordination to Avoid Station Queues
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Solution Overview
Problem
Electric vehicles face challenges in finding available charging stations and queuing at those stations, especially in large areas or complex traffic scenes, leading to 'charging anxiety', and existing solutions like charging robots are limited in applicability.
Innovation Solution
A V2V charging system that utilizes an on-board system in EVs to detect position, battery condition, and trip destination, communicates with a server to receive and select charging solutions, and provides a user-friendly interface for interacting with the V2V charging process, recommending suitable supply EVs and charging locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging robots are deployed in parking lots to charge EVs, then charging service is provided in specific areas, but the solution is not applicable to very large areas or complex traffic scenes
Solution Approach 1:
The patent implements a universal V2V charging system where any EV can function as a mobile charging station. The on-board system integrates multiple functions including position detection, battery condition monitoring, communication with server, and HMI presentation, allowing the system to adapt to various scenarios from parking lots to complex traffic environments without requiring different infrastructure
Solution Approach 2:
The patent introduces a server as an intermediary that coordinates between charging-requesting EVs and charging-capable EVs. The server receives charge requests, determines suitable charging solutions considering multiple factors, and manages the matching process, enabling the system to scale from small parking areas to large geographic regions without increasing on-vehicle system complexity
2Reliability
If EVs queue at charging stations to charge, then charging service is provided, but charging anxiety persists due to unavailability and queuing time
Solution Approach 1:
The system performs preliminary matching and planning before charging is needed. The on-board system continuously monitors battery conditions and pre-identifies potential charging sources by communicating with the server. When charging is required, the EV can immediately connect to a pre-identified charging vehicle without queuing, as the matching has already been performed
Solution Approach 2:
The patent enables EVs to serve themselves as charging stations. Any EV with sufficient battery capacity can autonomously provide charging services to other EVs through direct vehicle-to-vehicle connection. This eliminates the need for centralized charging stations and queuing, as charging capacity is distributed across the entire EV fleet
3Adaptability or versatility
If multiple charging solutions are provided to EVs, then user choice is increased, but the interaction complexity increases
Solution Approach 1:
The HMI implements feedback mechanisms that present multiple charging solutions to the user with clear comparisons of charging amount, time, and cost. The system provides real-time updates on battery status, available charging sources, and solution recommendations based on user preferences. This structured feedback helps users make informed decisions without being overwhelmed by complexity
Solution Approach 2:
The patent applies different levels of information presentation to different user needs. The HMI can display detailed charging solutions with multiple parameters for users who want comprehensive control, or provide simplified recommendations for users who prefer automatic decision-making. The interface adapts its complexity based on the specific charging scenario and user interaction patterns
Data Source
AI summary
A V2V charging system including an on-board system that includes a battery; a detection unit configured to detect a position of the EV, a battery condition of the battery and a destination of a current trip of the EV, wherein the battery condition includes an amount of remaining energy, a number of charge and discharge cycles, and current battery capacity; a communication unit configured to send a charge request to a server and receive one or more candidate charging solutions corresponding to the charge request from the server, the communication unit being further configured to send a selected charging solution that is selected by a user from the one or more candidate charging solutions to the server and receive a standstill charging location from the server; and a human-machine interface (HMI). The HMI includes a navigation module, an energy condition module, a charge request module, and a charging solution module.