Roadside Wireless Charging Layout for Hybrid SOC Recovery
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Solution Overview
Problem
In areas where internal combustion engines are prohibited or restricted, hybrid vehicles consume more electric power, leading to a decrease in battery state of charge (SOC), prompting frequent engine startups that degrade the environment. Non-contact power supply without control leads to excessive power consumption.
Innovation Solution
A power supply system with multiple apparatuses, including a first apparatus at the exit of the restricted area for increased power supply when traffic exceeds a threshold, and a second apparatus for reduced power supply elsewhere, controlled by a server to manage power distribution based on traffic and carbon dioxide concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If non-contact power supply is provided to vehicles without restriction, then the environment around the engine limited operation area is protected from degradation, but the amount of power consumption for supplying power becomes excessive
Solution Approach 1:
The patent applies local quality by providing enhanced non-contact power supply specifically at the first region located at the exit of the engine limited operation area, while providing reduced or no power supply at other regions. This localized approach ensures that vehicles leaving the restricted area receive sufficient power to avoid engine startup, while vehicles not in this critical zone do not consume unnecessary power, thereby resolving the contradiction between environmental protection and power consumption efficiency.
2Reliability
If the amount of power supply from the first power supply apparatus is increased, then hybrid vehicles can maintain battery charge without engine startup, but the overall power consumption increases
Solution Approach 1:
The patent implements preliminary action by providing increased power supply to hybrid vehicles at the first region before they complete their transition out of the engine limited operation area. This advance power supply ensures the battery state of charge is maintained at sufficient levels proactively, preventing the need for engine startup and thereby achieving reliability improvement without requiring sustained high power consumption across all regions.
3Adaptability or versatility
If non-contact power supply apparatuses are installed in all regions, then all vehicles can receive power supply, but the device complexity and cost increase
Solution Approach 1:
The patent applies segmentation by dividing the power supply system into multiple regions with different power supply levels: the first region at the exit of the engine limited operation area receives increased power supply, while other regions receive reduced or no power supply. This segmented approach allows the system to provide targeted power supply coverage where it is most needed, reducing the overall number of apparatuses required while maintaining adaptability for vehicles in critical zones.
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
Reduces power consumption while preventing engine startups, thus minimizing environmental degradation by optimizing power distribution to hybrid vehicles leaving restricted areas.
Implementation Method 1
Known in the past has been the art of using a transmission method such as magnetic field resonance coupling to transmit power from a power supply apparatus provided on the ground surface to a vehicle by non-contact
Data Source
AI summary
The power supply system includes a plurality of power supply apparatuses configured to transmit power to vehicles by non-contact. The plurality of power supply apparatuses includes a first power supply apparatus installed in a first region positioned on a road directly connected to an exit of an area in which operation of internal combustion engines is prohibited or restricted and where an amount of traffic of vehicles at least temporarily becomes equal to or greater than a predetermined threshold value, and a second power supply apparatus installed in a second region different from the first region. An amount of power supplied from the first power supply apparatus to a vehicle is made greater than an amount of power supplied from the second power supply apparatus to a vehicle.


