Automated EV Charging Strategy for Shared Parking Lots
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Solution Overview
Problem
The existing infrastructure for charging electric and hybrid vehicles often lacks sufficient charging stations, leading to inefficiencies and potential battery damage due to inadequate charging strategies, particularly when multiple vehicles need to be charged simultaneously.
Innovation Solution
A method for determining and implementing an automated charging strategy that considers the battery status, expected remaining battery life, and infrastructure conditions, allowing for optimized charging processes without the need for additional charging stations, by using a charging management system that coordinates charging times and positions across multiple vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple vehicles share limited charging stations, then charging accessibility is improved, but charging efficiency and battery safety deteriorate due to inadequate charging strategies
Solution Approach 1:
The system performs preliminary actions by determining charging strategies in advance based on battery status, vehicle priorities, and infrastructure conditions. The charging management system calculates optimal charging parameters before charging begins, ensuring efficient use of limited charging stations while protecting battery health through pre-planned charging profiles that consider battery state of charge, temperature, and expected remaining battery life.
2Adaptability or versatility
If charging stations are increased to serve more vehicles, then charging availability is improved, but infrastructure cost and complexity worsen
Solution Approach 1:
The system changes parameters by dynamically adjusting charging strategies based on real-time battery status, vehicle priorities, and infrastructure conditions. Instead of increasing the number of charging stations, the system optimizes the use of existing infrastructure by varying charging parameters such as charging power, timing, and duration to serve multiple vehicles effectively with the same physical charging stations.
3Loss of time
If fast charging is applied to reduce charging time, then charging speed is improved, but battery wear and damage risk worsen
Solution Approach 1:
The system applies partial action by determining the appropriate charging speed based on battery status and requirements. Instead of always applying maximum fast charging power, the system adjusts charging intensity to match actual needs, applying higher power only when battery conditions permit and lower power when battery protection is prioritized, thus reducing unnecessary battery wear while still achieving efficient charging.
Solution Approach 2:
The system uses feedback by continuously monitoring battery status including state of charge, temperature, and health metrics during charging. Based on this real-time feedback, the charging management system dynamically adjusts charging strategies to prevent battery damage while minimizing charging time, stopping or reducing charging power when battery conditions indicate risk of damage.
Data Source
AI summary
An automated charging process for a battery of a motor vehicle. The method includes: transmitting a charging request for the battery from a first data transmission unit to a second data transmission unit which is part of a charging management system and is connected to a computing unit of the charging management system, the charging management system being assigned a parking lot for motor vehicles which includes a plurality of stop positions; determining a battery status of the battery; determining a charging strategy for the motor vehicle for charging the battery by the computing unit taking into account the battery status; and moving the motor vehicle to a suitable charging position of the parking lot and charging the battery of the motor vehicle according to the charging strategy in the suitable charging position by a charging station assigned to the suitable charging position.