Magnetic Resonance Coupling for Wireless Vehicle Power and Data
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Solution Overview
Problem
Modern vehicles face challenges with extensive electrical wiring, including weight, susceptibility to damage, reduced design flexibility, maintenance needs, and increased costs, as well as limitations in wireless communication due to interference and power consumption.
Innovation Solution
A system utilizing magnetic resonance coupling (MRC) to wirelessly provide power and data communication to peripheral devices, employing a transmitter coil and receiver coils tuned to resonate at specific frequencies, allowing for efficient energy transfer and data transmission without the need for physical wiring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If extensive electrical wiring is used to support vehicle systems, then device connectivity and power supply are ensured, but vehicle weight increases and fuel efficiency decreases
Solution Approach 1:
The patent replaces the mechanical wiring system with a wireless magnetic resonance coupling system. The transmitter coil generates an oscillating magnetic field that inductively couples with receiver coils in peripheral devices, eliminating the need for physical electrical connections and significantly reducing vehicle weight while maintaining power and data transmission capabilities
2Reliability
If extensive electrical wiring is installed throughout the vehicle, then all peripheral devices can be powered and connected, but the system becomes more susceptible to damage and requires periodic maintenance
Solution Approach 1:
By replacing the mechanical wiring infrastructure with wireless magnetic resonance coupling, the patent eliminates vulnerable physical connections that are prone to damage from vibration, corrosion, and connector failures. The wireless system has no physical wear points requiring maintenance, significantly improving ease of repair and reducing downtime
Solution Approach 2:
The wireless power and communication system requires no manual intervention for connection establishment or maintenance. The magnetic coupling automatically establishes power transfer when devices are within range, and the system self-regulates without requiring periodic inspection or repair of wiring harnesses
3Device complexity
If wireless communication technology is used in vehicles, then wiring complexity is reduced, but signal interference and fading issues increase power consumption
Solution Approach 1:
The patent employs magnetic resonance coupling where the transmitter and receiver coils are tuned to resonate at the same frequency. This resonant coupling creates strong magnetic field coupling that efficiently transfers power and data over distances without the interference and fading problems that plague conventional wireless communication, significantly reducing power consumption
Solution Approach 2:
The system uses tuned resonant frequencies as a key parameter to optimize power transfer efficiency. By matching the resonant frequencies of transmitter and receiver coils, the system achieves maximum coupling efficiency at minimal power levels, eliminating the need for high transmitted power required by conventional wireless methods
4Ease of manufacture
If traditional wiring harnesses are assembled during vehicle manufacture, then electrical connections are established, but assembly problems occur due to breaking or bending of connector pins
Solution Approach 1:
The patent eliminates the mechanical assembly of wiring harnesses and connector pins by implementing wireless magnetic resonance coupling. This removes the entire category of assembly problems related to fragile electrical connectors, simplifying manufacturing processes and eliminating a major source of defects in vehicle assembly
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
This solution reduces the weight and maintenance needs of vehicle wiring, enhances design flexibility, and improves communication efficiency by eliminating interference and power consumption issues while enabling simultaneous power and data transfer to multiple devices.
Implementation Method 1
a transmitter circuit having a variable current source, a base coil and a variable capacitor, where the current source and the capacitor are tuned to provide a predetermined AC current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency
Implementation Method 2
When the base coil is tuned to the receiver coil the power source can be recharged through magnetic resonance coupling to power the device
Data Source
AI summary
A system for providing power signals to peripheral devices on a vehicle using magnetic resonance coupling. The system includes a transmitter circuit having a variable current source, a base coil and a variable capacitor, where the current source and the capacitor are tuned to provide a predetermined AC current to the base coil so as to generate an oscillating magnetic field at a predetermined frequency. The system also includes a receiver circuit for each peripheral device, where each receiver circuit includes a receiver coil and a rechargeable power source. When the base coil is tuned to the receiver coil the power source can be recharged through magnetic resonance coupling to power the device. The transmitter circuit can be on the vehicle or can be separate from the vehicle, such as in a charging pad.