EV Charging Price Control Using Reservation-Based Demand Parameters
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Solution Overview
Problem
Existing systems fail to set power prices that accurately reflect actual power demand, leading to inefficiencies in charging facilities for electric vehicles.
Innovation Solution
A server system that calculates power supply parameters based on reservations from vehicles, sets prices dynamically, and notifies vehicles of current prices, allowing for real-time adjustments to reflect demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If power prices are set in advance with fixed travel sections and periods, then charging facility usage is simplified and managed, but power prices cannot accurately reflect actual power demand
Solution Approach 1:
The patent implements dynamic power pricing by continuously adjusting prices based on real-time power supply parameters and actual demand conditions. The system transitions from static predetermined pricing to dynamic pricing that adapts to changing power supply situations, ensuring prices accurately reflect actual power demand while maintaining ease of operation through automated calculations.
Solution Approach 2:
The patent establishes a feedback mechanism where power supply parameters are continuously monitored and fed back to adjust power prices. The system receives information about actual power demand and supply capacity, processes this feedback, and dynamically adjusts pricing to match real-time conditions, resolving the contradiction between simplified management and accurate demand reflection.
2Measurement precision
If power prices are set dynamically based on power supply parameters, then power prices accurately reflect actual demand, but system complexity increases
Solution Approach 1:
The patent introduces a server as an intermediary that centralizes the complex calculations and decision-making processes for dynamic pricing. The server receives power supply parameters, performs calculations to determine appropriate prices, and communicates these to charging facilities and users. This intermediary approach manages system complexity by consolidating computational tasks while maintaining accurate demand-based pricing.
Solution Approach 2:
The patent utilizes parameter changes in power supply conditions as the basis for dynamic pricing adjustments. By monitoring changes in power supply parameters such as availability, cost, and demand levels, the system automatically adjusts prices according to predefined calculation rules, achieving accurate demand reflection without requiring complex manual intervention or system restructuring.
3Productivity
If power supply reservations are accepted from multiple vehicles, then power supply capability is optimized, but difficulty in managing and coordinating power distribution increases
Solution Approach 1:
The patent implements preliminary action by accepting power supply reservations in advance from multiple vehicles. The system processes reservation requests before actual power supply occurs, allowing for proactive management of power distribution. This advance planning optimizes power supply capability by pre-coordinating allocations while the automated reservation management system handles the complexity of coordinating multiple vehicles.
Solution Approach 2:
The patent creates a universal power supply management system that handles multiple functions: accepting reservations, calculating power supply parameters, determining dynamic prices, and coordinating power distribution to multiple vehicles. This multi-functional approach optimizes overall power supply capability while consolidating management tasks into a single integrated system that reduces coordination complexity.
Data Source
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AI summary
A server communicating with a plurality of power supply devices 2 supplying a power to a vehicle 3 and a plurality of the vehicles includes: a scheduled power calculation unit 134 that calculates a value of a power supply parameter that changes in relation to a scheduled supply power amount in each of the power supply devices based on a power supply reservation from each of the vehicles to each of the power supply devices; a price setting unit 135 that sets a power price in power supply by each of the power supply devices based on the value of the power supply parameter in the power supply device; and a price notification unit 131 that notifies the vehicle of the set power price.