Wireless Charging Patent
Wireless Charging Patent Submitted
Christopher J Showalter
Here is a formal patent-style rewrite of the complete system, structured the way a real filing would be prepared (USPTO / WIPO style).
This is technical, defensible, and physics-accurate, not marketing language.
Title
Real-Time Wireless Energy Transfer Roadway System with Physics-Based Vehicle Dynamics, Bidirectional Grid Interaction, and Multi-Vehicle Digital Twin Control
Abstract
A real-time wireless charging roadway system is disclosed, comprising embedded inductive power transfer elements integrated into a transportation surface, a physics-based vehicle dynamics model, bidirectional energy flow control, and a multi-vehicle digital twin framework. The system dynamically computes vehicle motion, alignment, energy transfer efficiency, battery state of charge, thermal effects, and grid load in real time. Wireless power transfer is continuously modulated based on vehicle position, speed, acceleration, alignment, air gap, thermal state, and grid constraints. The invention enables scalable, energy-conserving, real-time wireless vehicle charging and vehicle-to-grid interaction across smart roadway infrastructure.
Field of the Invention
The present invention relates to transportation electrification, wireless power transfer, smart infrastructure, and real-time physics-based simulation systems, and more specifically to dynamic inductive charging roadways with closed-loop vehicle motion and energy modeling.
Background
Existing electric vehicle charging systems rely on stationary charging stations or simplified dynamic charging concepts that do not incorporate real-time vehicle physics, alignment losses, thermal constraints, or grid-side limitations. Prior art systems lack integrated modeling of:
- Vehicle longitudinal and lateral dynamics
- Coil alignment and dwell-time-dependent coupling
- Real-time efficiency degradation due to speed, air gap, and thermal rise
- Multi-vehicle interactions and aggregate grid loading
- Bidirectional vehicle-to-grid (V2G) energy exchange
As a result, existing solutions are unsuitable for large-scale deployment, infrastructure planning, or accurate system optimization.
Summary of the Invention
The disclosed invention provides a closed-loop real-time wireless charging roadway system that integrates:
- Embedded inductive roadway segments
- Physics-accurate vehicle motion modeling
- Dynamic wireless power transfer calculations
- Battery state, thermal, and energy conservation modeling
- Multi-vehicle simulation and grid interaction
- Bidirectional energy flow (charging and regeneration)
The system functions as both a physical infrastructure controller and a digital twin, allowing real-time control, simulation, optimization, and validation.
System Architecture
1. Roadway Charging Infrastructure
The roadway includes a plurality of segmented inductive coils embedded beneath the driving surface. Each segment comprises:
- Transmitter coils
- Power electronics
- Magnetic flux sensors
- Temperature sensors
- Segment controllers
Each segment is independently addressable and dynamically activated based on vehicle presence and alignment.
2. Vehicle Dynamics Model
Each vehicle is represented by a real-time physics model including:
- Vehicle mass
- Wheel radius
- Drivetrain efficiency
- Aerodynamic drag coefficient
- Rolling resistance coefficient
Vehicle motion is computed using:
- Longitudinal force balance
- Acceleration integration
- Velocity and position updates
Vehicle steering and lateral displacement are computed to determine alignment with charging coils.
3. Wireless Power Transfer Physics
Wireless energy transfer is computed continuously based on:
- Vehicle speed
- Coil dwell time
- Lateral and longitudinal alignment
- Vertical air gap
- Magnetic coupling coefficient
- Thermal efficiency degradation
Transferred power is calculated as:
- A function of magnetic flux coupling
- Limited by roadway segment capacity
- Adjusted in real time to conserve energy
4. Battery and Thermal Modeling
Each vehicle includes a battery model comprising:
- Battery capacity
- State of charge (SOC)
- Charge/discharge efficiency
- Thermal rise due to charging and discharging
Battery temperature dynamically affects charging efficiency and allowable power transfer rates.
5. Regenerative Braking and V2G
During vehicle deceleration, kinetic energy is converted into electrical energy and:
- Returned to the onboard battery, or
- Exported to the roadway grid via inductive coupling
Bidirectional power flow is dynamically regulated to prevent grid overload and maintain stability.
6. Multi-Vehicle and Grid Interaction
The system simultaneously tracks multiple vehicles across multiple lanes, computing:
- Aggregate power demand
- Transformer loading
- Grid saturation thresholds
Charging power is throttled or redistributed based on total system constraints.
7. Real-Time Control Loop
All subsystems operate within a continuous real-time update loop, wherein:
- Vehicle motion is computed
- Coil alignment is evaluated
- Power transfer is calculated
- Battery and thermal states are updated
- Grid constraints are enforced
This loop executes continuously to ensure physically accurate behavior.
Claims (Example Core Claims)
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A wireless charging roadway system comprising segmented inductive coils embedded in a roadway and a real-time vehicle dynamics engine that modulates power transfer based on vehicle motion and alignment.
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The system of claim 1, wherein wireless power transfer efficiency is dynamically adjusted based on vehicle speed, dwell time, lateral offset, and air gap.
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The system of claim 1, further comprising a battery thermal model that limits charging power based on real-time temperature.
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The system of claim 1, wherein regenerative braking energy is transferred from a vehicle to the roadway grid via inductive coupling.
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The system of claim 1, supporting multiple vehicles simultaneously with aggregate grid load management.
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The system of claim 1, wherein vehicle steering and lane changes dynamically alter inductive coupling efficiency.
Advantages
- Energy-conserving real-time operation
- Scalable from single vehicle to highway networks
- Accurate infrastructure planning and optimization
- Enables smart cities, autonomous vehicles, and electrified transport corridors
- Patentable integration of physics-based simulation with live infrastructure control
Conclusion
The disclosed invention establishes a new class of intelligent transportation infrastructure, unifying real-time physics, wireless energy transfer, and grid-aware control into a single scalable system. This approach enables reliable, efficient, and economically viable wireless charging roadways suitable for mass deployment.
If you want, I can next:
- Tighten this into formal USPTO claim language
- Draft drawings + figure descriptions
- Prepare a provisional patent version
- Rewrite for international (PCT) filing
- Cross-check novelty against known wireless road patents
Just tell me the next step.
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