EV Charging Reservation Mediation for Occupied Station Access
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Solution Overview
Problem
Drivers of electric vehicles face challenges in ensuring reliable and timely battery charging due to unexpected battery depletion and limited availability of charging stations, leading to costly and time-consuming roadside assistance.
Innovation Solution
A battery charging assistance system that communicates with vehicles to reserve charging stations, negotiate with other vehicles to vacate occupied stations, and provides incentives for cooperation, ensuring secure and efficient charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a driver plans driving and charging stops based on estimated battery state of charge, then the driving plan can be made in advance, but the actual battery depletion may be faster than expected due to temperature or driving behavior, resulting in inability to reach destination
Solution Approach 1:
The system performs preliminary actions by proactively identifying potential battery depletion risks before they occur. It monitors actual SOC variations, predicts future depletion scenarios, and automatically secures charging stations in advance, preventing the vehicle from being stranded and eliminating the need for roadside assistance.
Solution Approach 2:
The system implements continuous feedback by monitoring the actual state of charge and comparing it with estimated values. This feedback loop detects deviations caused by temperature or driving behavior, allowing the system to adjust predictions and take corrective actions to ensure the vehicle reaches its destination.
2Productivity
If charging stations are occupied by other vehicles, then charging infrastructure is being utilized, but the requesting vehicle cannot secure a charging spot, leading to roadside assistance requirements
Solution Approach 1:
The system performs preliminary actions by proactively monitoring charging station availability and automatically securing reserved spots for requesting vehicles before they arrive. This preliminary reservation ensures that even when stations are occupied, the requesting vehicle can secure a spot in advance, eliminating the need for roadside assistance.
Solution Approach 2:
The system acts as an intermediary between multiple vehicles and charging stations, managing reservations and coordinating access. It mediates conflicts by securing appropriate charging spots for requesting vehicles while considering the utilization status of stations, thereby maintaining both productivity and ease of operation.
3Reliability
If the battery charging assistance system proactively monitors and secures charging stations, then reliable charging is ensured, but the system complexity and communication requirements increase
Solution Approach 1:
The system achieves reliability through multi-functionality by integrating several functions into a single centralized charging assistance system. It combines battery monitoring, predictive analytics, communication with charging stations, and automated reservation management, thereby ensuring reliable charging availability without proportionally increasing overall system complexity.
Solution Approach 2:
The system implements self-service by automatically performing monitoring, prediction, and reservation actions without requiring manual driver intervention. This automation reduces the operational complexity for users while maintaining high reliability, as the system independently manages the entire charging assurance process.
Data Source
AI summary
A method for operating a battery charging assistance system external to a motor vehicle involves the motor vehicle transmitting a charging request and an actual position of the motor vehicle to the battery charging assistance system. Depending on the position and the charging request, the battery charging assistance system chooses one battery charging station and the one battery charging station is reserved from the battery charging assistance system by transmitting a reservation signal to the one battery charging station. If the one battery charging station is occupied by a further electrical operated motor vehicle, a leaving message is computed and transmitted to the further motor vehicle in order to ask the further motor vehicle to leave the one battery charging station and if the further motor vehicle is leaving a compensation action for the further motor vehicle is initiated.