Movable Wireless EV Charging Across Multiple Parking Spaces
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Solution Overview
Problem
Conventional charging systems for electric vehicles require separate charging units for each parking space, leading to increased installation costs.
Innovation Solution
A wireless charging system with a moving mechanism and power transmission units that can be moved between parking spaces to charge and discharge multiple vehicles, utilizing use plan information to optimize charging and discharging timings, and adjusting power transmission efficiency through vertical positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a charging unit is provided for each parking space, then charging capability is ensured for each vehicle, but installation cost increases
Solution Approach 1:
The charging device is designed to serve multiple parking spaces through a moving mechanism. A single charging unit with movable transmission units can charge vehicles in different parking spaces sequentially, making the charging device universal rather than dedicated to a single location. This reduces the total number of charging units needed while maintaining charging capability across multiple spaces.
Solution Approach 2:
The charging system employs a moving mechanism that allows the transmission units to dynamically reposition between different parking spaces. This dynamic capability enables a single charging device to adapt to multiple locations, replacing the need for static charging units at each parking space and thereby reducing installation costs.
2Productivity
If multiple charging units are installed for multiple vehicles, then charging demand is met, but device complexity increases
Solution Approach 1:
Multiple transmission units are integrated into a single charging device structure. Instead of having separate charging units for each vehicle, the invention merges the functionality of multiple units into one device that can move between parking spaces, thereby reducing device complexity while maintaining the ability to fulfill charging demand for multiple vehicles.
Solution Approach 2:
The charging device is designed as a multi-functional unit that can serve multiple parking spaces. By making the charging device universal rather than location-specific, the system reduces the total number of charging units required while still meeting the charging demands of multiple vehicles across different spaces.
3Ease of operation
If charging equipment is installed at each parking space, then charging accessibility is improved, but installation cost increases
Solution Approach 1:
The moving mechanism enables the charging device to dynamically access different parking spaces, providing charging accessibility to multiple locations without requiring permanent installation at each space. The transmission units can move to the required position when needed, maintaining ease of operation while reducing installation costs.
Solution Approach 2:
The system can automatically navigate the moving mechanism to position the transmission units at the appropriate parking space based on charging demand. This self-service capability allows the charging device to access multiple parking spaces autonomously, maintaining charging accessibility without requiring manual intervention or fixed infrastructure at each location.
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
Enables cost-effective installation and efficient charging/discharging of multiple electric vehicles by optimizing power transmission based on vehicle use plans and power availability, reducing installation costs and enhancing energy utilization.
Implementation Method 1
a second power transmission unit that performs wireless power transmission with a first power transmission unit mounted to the electric vehicle
Data Source
AI summary
Provided is a charging system including: a second power transmission unit; a moving mechanism that moves the second power transmission unit within a moving area including prescribed ranges within a plurality of parking spaces; and a power transmission control unit that, when a first electric vehicle is parked in a first parking space as one of a plurality of parking spaces, moves the second power transmission unit into the prescribed range of the first parking space by the moving mechanism to cause the first power transmission unit mounted to a first electric vehicle and the second power transmission unit to face each other so as to transmit power to the first power transmission unit from the second power transmission unit wirelessly to execute vehicle charging processing for charging the first electric vehicle.