Wireless Energy Reception for Continuous Electric Road Paving
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Solution Overview
Problem
Conventional road construction machines face limitations in range and operating time due to the use of batteries as energy sources, leading to interruptions and reduced efficiency, especially in electrified machines, which affect paving quality and productivity.
Innovation Solution
A road construction machine equipped with a receiving device for wirelessly receiving electrical energy, allowing direct supply to an electric drive and consumers, optionally with a buffer storage, eliminating the need for on-site charging and enabling continuous operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a battery is used as an energy source for an electrified road construction machine, then the machine can operate electrically, but the range and operating time are significantly reduced
Solution Approach 1:
The patent applies preliminary action by establishing wireless energy transmission infrastructure (transmitting devices) at the construction site before operation begins. This allows the road construction machine to receive continuous energy supply during operation, eliminating the need for large batteries and enabling extended operating time without returning to a charging station.
Solution Approach 2:
The patent uses wireless energy transmission as an intermediary mechanism between the power source and the road construction machine. The transmitting device acts as a mediator that transfers energy wirelessly to the receiving device on the machine, solving the contradiction between using electric power and maintaining long operating range.
2Use of energy by moving object
If a battery is used as an energy source, then the machine can be electrified, but the machine size and weight must be drastically increased
Solution Approach 1:
The patent extracts the energy storage function from the road construction machine itself and relocates it to an external transmitting device at the construction site. By removing the large battery from the machine, the weight and size of the machine are significantly reduced while maintaining continuous energy supply capability.
Solution Approach 2:
The wireless energy transmission system serves as an intermediary that provides energy without requiring it to be stored on the machine. This eliminates the need for heavy batteries on the road construction machine while still enabling electric operation.
3Duration of action of moving object
If the road construction machine returns to charge the battery, then the energy can be replenished, but the construction site must be interrupted
Solution Approach 1:
The patent implements continuous energy supply through wireless transmission, allowing the road construction machine to operate continuously without returning to charge a battery. The transmitting device maintains constant energy availability, ensuring uninterrupted paving operations and maintaining construction productivity.
4Duration of action of moving object
If the road construction machine is equipped with a large battery, then the range can be extended, but the device complexity increases
Solution Approach 1:
The patent extracts the complex energy management system (large battery, charging controls, power management) from the road construction machine and relocates it to an external transmitting device. This simplifies the machine's device complexity while maintaining extended range capability through wireless energy reception.
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
Enhances the operating time and range of road construction machines by ensuring continuous energy supply, reducing interruptions, and improving paving quality and efficiency.
Implementation Method 1
The receiving device (14) is designed to wirelessly receive electrical energy from an external transmitting device (34)
Data Source
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AI summary
A road construction machine (1), wherein the road construction machine (1) is a road paver (2) for producing a paving layer (ES) from a paving material (EM) or a feeder vehicle (200) for supplying the road paver (2) with paving material (EM), comprises an electric drive (3) for driving the road construction machine (1) and/or at least one electrical consumer (11, 211). The road construction machine further comprises a receiving device (14, 214) for electrical energy. The receiving device (14, 214) is designed to wirelessly receive electrical energy from an external transmitting device and to forward the electrical energy to the electric drive (3) and/or the electrical consumer (11, 211).