EV Charging Reservation Access Sharing During Long Charge Periods
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Solution Overview
Problem
Charging stations are often occupied for long periods when users reserve them for services or trips, leading to underutilization as other users cannot access them during this time, resulting in inefficient use of both vehicles and charging devices.
Innovation Solution
An information management system that allows temporary authority for use of battery electric vehicles to be provided to renting persons during reserved charging periods, enabling shared use and power supply adjustments, with a server managing reservation information and transmitting digital keys for vehicle access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a user reserves a charging station for a long period to use services or go on a trip, then the user can effectively utilize the waiting time, but the charging station cannot be used by other users during this period, resulting in inefficient use of the charging device
Solution Approach 1:
The charging station is designed to serve multiple functions simultaneously: it charges the reserved vehicle's power storage device while also allowing other users to rent and use the vehicle itself during the charging period. This multi-functionality resolves the contradiction by making the system productive in two ways - charging occurs while the vehicle serves as a rental resource.
Solution Approach 2:
The system dynamically changes the status of the vehicle from exclusively reserved to shared rental based on time periods and conditions. During the charging reservation period, the vehicle becomes available for rental to others, creating a dynamic resource allocation that improves overall system productivity while maintaining the original reservation's charging needs.
2Reliability
If a charging station is occupied for a long period, then the reserved user can complete charging and use services, but the vehicle and charging device cannot be used effectively by others, leading to resource underutilization
Solution Approach 1:
The system enables the vehicle to serve dual purposes: maintaining its charging reservation for reliable power storage device charging while simultaneously functioning as a rental vehicle for other users. This multi-functionality ensures the charging reservation's reliability is preserved while dramatically improving vehicle and charging device productivity.
Solution Approach 2:
The system segments the usage rights of the vehicle during the charging period into two separate components: the charging station remains reserved for the original user's power storage device charging, while the vehicle body becomes a separate rental resource available to others. This segmentation allows both charging reliability and vehicle utilization to coexist.
3Productivity
If temporary authority for vehicle use is provided to renting persons during reserved charging periods, then shared use and power supply adjustments are enabled, but system complexity increases
Solution Approach 1:
A server acts as an intermediary that manages the complex coordination between charging reservations and vehicle rentals. The server handles authority provision, digital key management, and power supply coordination, centralizing the complexity in a dedicated component rather than distributing it throughout the entire system, thereby improving resource utilization while containing complexity management.
Solution Approach 2:
The system implements feedback mechanisms where the server continuously monitors charging status, vehicle location, and rental conditions to dynamically adjust authority provisions and power supply arrangements. This feedback loop enables automatic coordination of multiple functions, improving productivity while managing system complexity through automated decision-making rather than manual coordination.
Data Source
AI summary
An information management system including a server. The server is configured to manage reservation information for reserving use of a charging device configured to charge a power storage device mounted on a battery electric vehicle. The server is configured to receive information for temporarily providing an authority for use of the battery electric vehicle to a renting person that rents the battery electric vehicle during a reservation time.