EV Charging System with Buffer Storage and Magnetic Coupling
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Solution Overview
Problem
Current electric vehicle charging systems are inefficient, requiring significant infrastructure costs and lengthy charging times, especially in urban areas with architectural heritage, due to the need for extensive electrified cables and complex electromechanical connections that do not allow precise regulation of charging voltage.
Innovation Solution
A charging system that includes an energy storage device, a voltage regulator, and a connection device to transfer electrical energy from the charging station to the electric vehicle, enabling a hybrid power supply that combines electrical energy from an energy source with stored energy, allowing for rapid charging in seconds and optimizing infrastructure costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional power supply systems with electrified cables are installed along the transport space, then electric vehicles can be supplied with electrical energy, but significant infrastructure costs are generated
Solution Approach 1:
The patent extracts the power supply function from the fixed infrastructure (electrified cables) and relocates it to mobile energy storage devices that can move with or near the vehicle, eliminating the need for extensive cable installation along the transport space
Solution Approach 2:
The patent introduces an intermediary energy storage device that acts as a buffer between the power source and the electric vehicle, enabling wireless or minimal-contact energy transfer and eliminating the need for extensive electrified cable infrastructure
2Use of energy by moving object
If electromechanical connection devices are used to connect charging devices with electric vehicles, then electrical energy can be transferred, but connection time is considerably increased
Solution Approach 1:
The patent replaces the electromechanical connection device with a magnetic coupling system that transfers electrical energy through magnetic fields without physical contact, eliminating the time-consuming mechanical connection and disconnection operations
Solution Approach 2:
The patent introduces a magnetic field as an intermediary medium to transfer electrical energy between the charging device and the electric vehicle without requiring direct electrical contact, thereby eliminating mechanical connection time
3Use of energy by moving object
If series connection of energy storage devices is used for charging, then electrical energy can be transferred, but precise regulation of charging voltage is not allowed
Solution Approach 1:
The patent segments the energy storage system into multiple independent devices connected in parallel, each capable of independent voltage regulation, thereby enabling precise control of charging voltage that cannot be achieved with series connection
Solution Approach 2:
The patent inverts the conventional series connection approach and uses parallel connection of energy storage devices, which fundamentally changes the voltage regulation characteristics and enables precise voltage control through independent device management
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 reduces charging time, minimizes downtime of electric vehicles, and optimizes infrastructure costs by enabling quick and efficient energy transfer, while preserving architectural heritage by reducing the need for extensive electrified cables.
Implementation Method 1
a voltage regulator (120) connected in series with the energy storage device (110) so as to form a closed circuit and being configured to transfer the electrical energy stored by the energy storage device (110)
Implementation Method 2
an energy storage device (110) configured to store electrical energy supplied by an energy source (320)
Implementation Method 3
a connection device (190) configured to electrically connect the energy storage device (110) of the charging device, via the voltage regulator (120), with the energy storage device (910) of the electric vehicle (900) and to transfer at least part of the electrical energy stored by the energy storage device (110)
Data Source
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AI summary
The field of the present invention is that of so-called "green" vehicles and more particularly that of electric vehicles. It relates in particular although not exclusively to the field of self-powered electrical transport means and to the systems for powering same. More specifically, the present invention relates to the device for charging the energy storage means used in parallel with a source of electrical energy by using energy storage devices as buffer devices.