Wireless EV Battery Charging Using Tesla Coil Flashes
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Solution Overview
Problem
Electric vehicles require longer charging durations compared to conventional vehicles, and existing infrastructure is inadequate, leading to increased journey times and reduced attractiveness due to the time-consuming nature of battery charging.
Innovation Solution
A method and system utilizing a charging station with a Tesla coil to generate electrical flashes that transmit energy wirelessly to a vehicle's receiver, allowing for rapid charging during travel by adjusting the distance and velocity of the vehicle relative to the charging station, with communication modules to manage energy transfer and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional charging methods are used, then infrastructure requirements are reduced, but charging duration increases significantly
Solution Approach 1:
The patent replaces the mechanical connection system (physical charging plugs and contacts) with an electromagnetic field-based wireless energy transfer system using Tesla coils. This substitution eliminates the need for complex mechanical infrastructure while enabling rapid energy transfer, directly resolving the contradiction between charging speed and infrastructure complexity
Solution Approach 2:
The charging system uses periodic electrical discharges (flashes) from the Tesla coil to transfer energy in intense pulses rather than continuous low-power transfer. This periodic high-intensity action enables rapid charging during brief intervals, dramatically reducing total charging duration without requiring extensive infrastructure
2Productivity
If rapid charging with high currents and voltages is implemented, then charging duration is reduced, but safety risks and infrastructure requirements increase
Solution Approach 1:
The air gap between the Tesla coil and vehicle receiver serves as an intermediary medium for energy transfer, eliminating direct electrical contact. This intermediary approach enables high-power transfer while inherently providing electrical isolation and safety, resolving the contradiction between charging speed and safety
Solution Approach 2:
The system dynamically adjusts the parameters of electrical discharge (voltage, current, duration) based on battery state and distance measurements. By changing these parameters in real-time, the system achieves rapid charging when conditions permit while maintaining safety through reduced power delivery when needed, resolving the speed-safety contradiction
3Loss of time
If vehicle passes charging station at higher velocity, then charging time is reduced, but energy transfer efficiency decreases
Solution Approach 1:
The system is designed to be dynamic, automatically adjusting operational parameters based on real-time vehicle velocity and distance measurements. At higher velocities, the system increases power output and adjusts flash timing to maintain optimal energy transfer, resolving the contradiction between reduced charging time and energy efficiency
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor vehicle position, velocity, and energy transfer effectiveness. This feedback enables real-time optimization of discharge parameters, ensuring efficient energy transfer occurs even during high-speed passage through the charging zone, resolving the time-efficiency contradiction
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 lightning-fast battery charging without the need for extensive infrastructure, reducing journey time and increasing the attractiveness of electric vehicles by allowing charging on the go, while minimizing investment in charging stations.
Implementation Method 1
A method and system utilizing a charging station with a Tesla coil to generate electrical flashes that transmit energy wirelessly to a vehicle's receiver
Data Source
AI summary
A method for charging a battery of a vehicle with electrical energy using a charging station which includes at least one source for generating flashes. At least one flash is generated using the at least one source, an amount of electrical energy is provided via the air using the at least one receiver of the vehicle. The received amount of electrical energy is provided to the battery by the at least one receiver.