Modular EV Charging Matrix for Flexible Multi-Vehicle Power Sharing
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Solution Overview
Problem
Existing charging systems for electric vehicles lack flexibility to accommodate different charging demands and inefficiently utilize hardware and power sources, leading to high costs and limited power supply capabilities.
Innovation Solution
A charging system with modular energy storage direct converter systems (MESDCS) and a switchable connection matrix, controlled by a control system, allows for flexible voltage and power management, enabling simultaneous charging of multiple vehicles with different requirements and optimizing hardware and power use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a charging system is designed to accommodate multiple EV models with different battery capacities and charging requirements, then the system's adaptability and versatility improve, but the device complexity increases due to the need for multiple charging ports and configurations
Solution Approach 1:
The charging system employs a single charging port that can accommodate multiple EV models with different battery capacities and charging requirements. The port is designed with universal compatibility features that allow it to interface with various connector types and configurations, eliminating the need for multiple dedicated ports while maintaining adaptability across different vehicle models.
Solution Approach 2:
The charging system utilizes a hierarchical connector design where a main universal port contains or interfaces with multiple smaller connector types. This nested structure allows different connector configurations to be integrated within a single port assembly, enabling the system to handle various EV models without requiring separate external ports for each vehicle type.
2Device complexity
If the charging system uses a single charging port for all EV models, then the device complexity is reduced, but the manufacturing precision requirements increase to ensure proper alignment and connection
Solution Approach 1:
The charging system incorporates self-aligning features that create an equipotential connection interface, where the universal port and EV connector are designed to automatically align through mechanical guidance elements such as positioning pins, tapered interfaces, or magnetic attraction. This ensures consistent electrical and mechanical contact regardless of minor variations in manufacturing tolerances, reducing the overall precision requirements while maintaining reliable connections.
3Ease of operation
If the charging system is designed to be compact and portable, then the ease of operation and installation improve, but the power transmission capability and charging speed may be limited
Solution Approach 1:
The charging system replaces heavy mechanical power transmission components with electrical and electronic solutions. By using high-efficiency power electronics, smart grid integration, and advanced electrical connectors, the system achieves high power transmission capability in a compact form factor, eliminating the need for bulky mechanical transformers and cables while maintaining fast charging performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides flexible charging solutions, efficient use of hardware, and optimal power utilization, supporting high transient charging powers and energy storage, while separating vehicle and power source potentials, and allowing for bidirectional energy flow.
Implementation Method 1
a communication module configured to communicate with a charging pile controller of the charging pile in wireless or wired communication
Data Source
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AI summary
Disclosed herein is a charging system (10) for electric vehicles (12), comprising a number N of charge ports (LPj), each charge port (LPj) having an interface (14) for power exchange with an electric vehicle (12), a number of M modular energy storage direct converter systems (MESDCS) (Ui), a switchable connection matrix (16), and a control system (18). The control system (18) is configured to control an output voltage of each MESDCS (Ui). The switchable connection matrix (16) is configured to connect one or more selected MESDCS (Ui) with each given charge port (LPj), and is further configured to connect one or more selected MESDCS (Ui) with a power source (30).