Vehicle Sensor Power Antenna Layout Using Wireless Power Feeding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle systems face challenges in arranging sensors and power supply antennas flexibly due to structural limitations, making it difficult to route electrical cables and ensuring effective power transmission without interference from vehicle fixtures.
Innovation Solution
An on-vehicle device with a power supply module that includes a power receiving antenna and circuit to convert radio waves into electric power, connected via a flexible line member to an electrical component, and a power feeding antenna on the ceiling to transmit radio waves throughout the vehicle interior, allowing for flexible arrangement and improved reception quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rigid electrical cables are used to connect sensors to power supply, then stable electrical connection is achieved, but flexibility of arrangement of members is reduced
Solution Approach 1:
The patent replaces the mechanical cable routing system with a wireless power transmission system using electromagnetic waves. The power supply device transmits power wirelessly to sensors, eliminating the need for physical cable routing and thereby improving arrangement flexibility while reducing structural complexity.
Solution Approach 2:
The patent introduces a wireless communication medium (electromagnetic waves) as an intermediary to transfer power between the power supply device and sensors. This intermediary enables power transmission without direct physical connection, allowing flexible placement of components throughout the vehicle interior.
2Object-affected harmful factors
If power supply modules are placed close to sensors, then cable length is reduced, but interference from vehicle fixtures increases
Solution Approach 1:
The patent replaces the mechanical cable connection with wireless electromagnetic power transmission. This eliminates the cable length constraint entirely and allows the power supply device to be positioned anywhere in the vehicle without being limited by cable routing or interference from vehicle fixtures.
3Adaptability or versatility
If wireless power transmission is implemented, then arrangement flexibility is improved, but power transmission reliability may be affected
Solution Approach 1:
The patent incorporates feedback mechanisms where the power supply device and sensors communicate wirelessly to establish and maintain optimal power transmission parameters. The system dynamically adjusts transmission settings based on received signals, ensuring reliable power delivery regardless of the distance or position of components.
Solution Approach 2:
The patent utilizes adjustable electromagnetic transmission parameters (frequency, power level, modulation) to optimize power transmission under different conditions. By dynamically changing these parameters, the system maintains reliable power delivery while accommodating flexible component arrangement throughout the vehicle.
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 configuration enhances the flexibility of sensor and power supply antenna arrangements within vehicles, reducing interference from structural elements and ensuring reliable power transmission to various components, such as sensors and navigation systems.
Implementation Method 1
a power supply circuit configured to convert radio waves for power feeding received by the power receiving antenna into electric power
Data Source
AI summary
An on-vehicle device that is to be mounted in a vehicle includes: an electrical component including a sensor; a power supply module including a power receiving antenna and a power supply circuit configured to convert radio waves for power feeding received by the power receiving antenna into electric power and supply the electric power to the electrical component; and a line member having flexibility and electrically connecting the electrical component to the power supply module.