Eddy Current Road Deicing via Ferromagnetic Materials
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Solution Overview
Problem
Current methods for de-icing and preventing icing on road surfaces are either environmentally harmful, costly, or limited in application, and existing technologies do not provide a comprehensive solution for continuous and widespread prevention of ice formation on road surfaces.
Innovation Solution
A motor vehicle equipped with electrically conductive coils that generate a changing magnetic field to induce electrical eddy currents in ferromagnetic materials within the road surface, heating the area and preventing icing through continuous use or automatic temperature-dependent activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If de-icing salt and deadening substances are used to prevent icing on road surfaces, then the grip of slippery winter roads is improved, but negative effects on the environment and the road surface occur
Solution Approach 1:
The patent replaces chemical de-icing methods (salt, brine) with an electromagnetic heating system. Electrically conductive coils generate alternating magnetic fields that induce eddy currents in ferromagnetic materials embedded in the road surface, producing heat through resistive heating to melt ice and prevent icing, thereby eliminating environmental contamination from chemical substances
Solution Approach 2:
The patent changes the physical state of the road surface by controlling temperature through electromagnetic heating. By adjusting the power and frequency of the alternating current in the coils, the temperature of the road surface can be precisely controlled to prevent ice formation or melt existing ice, providing a controllable alternative to chemical methods
2Reliability
If road heaters using fossil or electrical energy sources are used to prevent icing, then safety on problem routes is improved, but construction costs and operating costs become very high
Solution Approach 1:
The patent employs ferromagnetic materials embedded in the road surface that automatically convert electromagnetic energy from the coils into heat through eddy currents and hysteresis losses. This self-heating mechanism eliminates the need for external fuel sources or complex thermal management systems, reducing both construction and operating costs compared to conventional electric or fossil-fuel-based road heaters
Solution Approach 2:
The patent utilizes the phase transition of ice to water through electromagnetic heating. The alternating magnetic fields induce eddy currents that generate heat, raising the temperature of the road surface above the freezing point of water, thereby melting ice and preventing its formation without requiring sustained high-energy input
3Speed
If de-icing spray systems are used to spray de-icing material onto the road surface, then immediate reaction to developing ice is achieved, but high investment costs are required
Solution Approach 1:
The patent replaces mechanical spray systems with an electromagnetic field-based heating system. The electrically conductive coils generate alternating magnetic fields that directly heat the road surface through induced eddy currents, providing immediate response to ice formation without the infrastructure costs of spray cans, pumps, and distribution systems
Solution Approach 2:
The patent creates a multi-functional road surface by embedding ferromagnetic materials during construction that serve dual purposes: structural reinforcement and electromagnetic heating. This eliminates the need for separate de-icing infrastructure, reducing investment costs while maintaining rapid response capability through on-demand electromagnetic heating
4Reliability
If mechanical snow removal devices are used to clear snow from roadways, then snow is removed to avoid or reduce icing, but clearing becomes more difficult in towns and communities due to lack of areas for snow deposits
Solution Approach 1:
The patent applies preliminary action by preventing ice formation before it occurs through continuous or periodic electromagnetic heating of the road surface. The alternating magnetic fields maintain the road surface temperature above freezing, eliminating the need for subsequent snow and ice removal operations in urban areas with limited storage space
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 provides continuous and environmentally friendly de-icing and prevention of icing on road surfaces, reducing the need for conventional measures and lowering personnel and operational costs, with increased effectiveness as traffic volume increases.
Implementation Method 1
The electrically conductive coil itself generates a constant magnetic field, but the road surface passes through the movement of the electrically conductive coil perceives a changing magnetic field. This leads to the generation of electrical eddy currents by induction.
Implementation Method 2
This leads to the generation of electrical eddy currents by induction. The magnitude of the direct current depends on the respective application.
Implementation Method 3
The electrically conductive coil itself generates a constant magnetic field, but the road surface passes through the movement of the electrically conductive coil perceives a changing magnetic field. This leads to the generation of electrical eddy currents by induction.
Data Source
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AI summary
The invention relates to a road surface material, characterized in that it has magnetizable material. The invention further relates to a road surface made of such a road surface material, to a vehicle with tires, particularly a motor vehicle or aircraft, wherein at least one eddy current generating device is provided for generating electric eddy currents in such a road surface, to a method for avoiding the icing or for the deicing of a road surface, and to a system for carrying out the same.