Integrated EV AC Charging Layout for Wired and Wireless Modes
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Solution Overview
Problem
Existing AC charging systems for electric vehicles require separate installations for wired and wireless charging, leading to increased mass, cost, and low component utilization, as well as limited space constraints for integrating wireless charging components.
Innovation Solution
An AC charging system that integrates shared electric components, such as a DC/DC converter and EMC filter, for both wired and wireless charging modes, reducing the number of components and enabling a more compact design with shared components for both charging functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate wired and wireless charging systems are installed in the electric vehicle, then both charging functionalities are available, but the vehicle mass increases and installation space requirements increase
Solution Approach 1:
The patent combines wired and wireless charging systems into a single integrated charging unit. The wireless charging coil assembly is integrated with the wired charging components (socket, cable reception, and charging circuitry) into one compact module that can be installed in limited vehicle space. This merging eliminates the need for separate installations while maintaining both charging functionalities.
Solution Approach 2:
The integrated charging unit serves multiple functions: it can receive AC power through the socket for wired charging, wirelessly receive power through the coil assembly, and charge the vehicle battery. The single unit universally handles both wired and wireless charging modes, replacing what would traditionally require two separate systems.
2Adaptability or versatility
If separate wired and wireless charging systems are installed in the electric vehicle, then both charging functionalities are available, but the installation space requirements increase
Solution Approach 1:
The patent combines wired and wireless charging systems into a single integrated charging unit. The wireless charging coil assembly is integrated with the wired charging components (socket, cable reception, and charging circuitry) into one compact module that can be installed in limited vehicle space. This merging eliminates the need for separate installations while maintaining both charging functionalities.
Solution Approach 2:
The integrated design nests multiple charging components within a compact structure. The wireless charging coil assembly is positioned to work in conjunction with the wired charging components, creating a space-efficient configuration where components are arranged to maximize functionality within minimal volume.
3Adaptability or versatility
If separate wired and wireless charging systems are installed, then both charging functionalities are available, but the system cost increases
Solution Approach 1:
The patent combines wired and wireless charging systems into a single integrated charging unit. The wireless charging coil assembly is integrated with the wired charging components (socket, cable reception, and charging circuitry) into one compact module that can be installed in limited vehicle space. This merging eliminates the need for separate installations while maintaining both charging functionalities.
Solution Approach 2:
The integrated charging unit serves multiple functions: it can receive AC power through the socket for wired charging, wirelessly receive power through the coil assembly, and charge the vehicle battery. The single unit universally handles both wired and wireless charging modes, replacing what would traditionally require two separate systems.
4Productivity
If wired charging system is used, then charging functionality is provided, but component utilization is low as wireless charging components remain unused
Solution Approach 1:
The integrated charging unit serves multiple functions: it can receive AC power through the socket for wired charging, wirelessly receive power through the coil assembly, and charge the vehicle battery. The single unit universally handles both wired and wireless charging modes, replacing what would traditionally require two separate systems.
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 integrated AC charging system reduces the number of components, decreases mass and installation space requirements, and provides a cost-effective solution with improved component utilization by using common parts for both wired and wireless charging modes.
Implementation Method 1
a coil configured for receiving AC wirelessly from a second external power supply
Implementation Method 2
a DC/DC converter configured for converting direct current from the rectifier and from the first unit
Implementation Method 3
a rectifier configured for receiving AC wirelessly from the coil and for converting it into direct current
Data Source
AI summary
An alternating current charging system to charge a battery of a vehicle, wherein the system comprises a socket to connect a cable and receive alternating current via the cable from a first supply and a coil to wirelessly receive alternating current from a second supply, wherein the system is configured to charge the battery in a first mode based on the current received via the cable and in a second mode based on the current wirelessly received via the coil, wherein the system comprises a first unit comprising a first component for charging in the first mode, the first unit connected to the socket, a second unit comprising a second component for charging in the second mode, the second unit connected to the coil, and a third unit comprising a third component for charging in the first mode and in the second mode, the third unit connectable to the battery.