EV Charging Frame Allocation for Automated Valet Parking
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Solution Overview
Problem
Conventional automated valet parking systems for EVs do not effectively utilize multiple charging parking frames, leading to inconvenience for users, as they do not consider the optimal allocation of these frames based on vehicle usage schedules and charge levels.
Innovation Solution
An automated valet parking system that includes a management device to determine a parking frame usage schedule by assigning charging parking frames closer to the departure/arrival place for EVs with earlier use times and farther from the departure/arrival place for EVs with lower charge levels or unknown schedules, utilizing both quick and normal charging frames based on usage needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If charging parking frames are assigned without considering vehicle usage schedules and charge levels, then the parking place can accommodate multiple EVs, but user inconvenience increases due to suboptimal frame allocation
Solution Approach 1:
The management device acquires vehicle usage schedules and remaining charge amounts in advance, then determines the parking frame usage schedule before EVs arrive. This preliminary allocation ensures that EVs with earlier usage times are assigned to frames closer to the departure/arrival place, and EVs with lower charge levels are assigned to frames farther away, optimizing user convenience before the actual parking operation occurs.
Solution Approach 2:
The system changes the allocation parameters from simple first-come-first-served to a multi-parameter optimization considering vehicle usage schedules, remaining charge amounts, and frame distances from the departure/arrival place. This parameter-based allocation dynamically adjusts frame assignments to maximize user convenience while efficiently utilizing multiple charging parking frames.
2Loss of time
If EVs with earlier usage times are assigned to charging frames closer to the departure/arrival place, then user convenience is improved, but the allocation logic becomes more complex
Solution Approach 1:
The management device determines the parking frame usage schedule in advance by acquiring vehicle usage schedules and remaining charge amounts, then assigns frames before EVs arrive. This preliminary action ensures that time-sensitive allocations are made optimally, reducing the time users would otherwise spend searching for or traveling to their vehicles.
3Productivity
If multiple charging parking frames are utilized with optimized allocation, then frame turnover rate increases, but the management system complexity increases
Solution Approach 1:
The system implements a parameter-based allocation mechanism that considers vehicle usage schedules, remaining charge amounts, and frame distances from the departure/arrival place. This multi-parameter approach optimizes frame turnover by ensuring that frames are assigned to the most appropriate EVs, maximizing utilization efficiency across all charging parking frames.
Solution Approach 2:
The management device continuously monitors remaining charge amounts and updates the parking frame usage schedule accordingly. This feedback mechanism ensures that allocation decisions are based on current vehicle states, enabling dynamic optimization of frame turnover rates while maintaining system efficiency.
Data Source
AI summary
An automated valet parking system enables a plurality of charging parking frames in a parking place to be utilized and reduces inconvenience to an EV user using an automated valet parking service. The management device acquires a vehicle usage schedule and a remaining charge amount of each EV and determines a parking frame usage schedule of a charging parking frame. Specifically, with respect to an EV scheduled to be used on the next day, the management device assigns a charging parking frame closer to the departure/arrival place to an EV having earlier use start time on the next day. With respect to an EV not scheduled to be used on the next day and an EV whose usage schedule is unknown, the management device assigns a charging parking frame farther from the departure/arrival place to an EV with smaller remaining charge amount.