Flexible Tire Sensor Carrier for Pressure and Humidity Measurement
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Solution Overview
Problem
Existing tire pressure and moisture measurement systems face challenges due to the use of inflexible carrier materials that do not adapt to the tire's surface, limiting their effectiveness in accurately measuring and processing pressure and moisture values.
Innovation Solution
A flexible and bendable carrier material, such as woven fabric with integrated electrical conductor traces, is used to house sensors and processing units on the inner surface of tires, allowing for accurate measurement and wireless data transmission to a CPU, enabling the detection of external forces and internal pressure changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If inflexible carrier materials are used to house sensors and processing units, then structural stability is improved, but adaptability to the tire's surface deteriorates
Solution Approach 1:
The patent applies flexible carrier materials (textile substrates, flexible circuits) to house sensors and processing units, enabling the system to conform to the curved inner surface of the tire while maintaining structural integrity. This resolves the contradiction by providing both flexibility for adaptation and sufficient stability for reliable operation.
Solution Approach 2:
The patent uses composite structures combining flexible substrates with protective coatings and adhesive layers, creating a multi-layer system that provides both flexibility for conforming to the tire surface and structural stability for durable operation under dynamic conditions.
2Adaptability or versatility
If sensors are arranged on a flexible carrier material, then adaptability to the tire surface is improved, but manufacturing precision deteriorates
Solution Approach 1:
The patent incorporates sensors and electronic components onto the flexible carrier material during the manufacturing process before the tire assembly is completed. This preliminary arrangement allows for precise positioning and bonding under controlled conditions, ensuring accurate sensor placement while maintaining the flexibility needed for tire surface adaptation.
Solution Approach 2:
The patent employs different manufacturing techniques for different regions of the carrier material, with high-precision areas for sensor mounting and more flexible areas for conforming to the tire surface, thereby achieving both positioning accuracy and adaptability.
Data Source
AI summary
An apparatus and method for measuring pressure and/or humidity, having at least one sensor for measuring pressure and/or humidity. The sensor has at least one capacitor having at least two electrodes that are arranged in a horizontal direction relative to one another along and on a flexible support material. At least one dielectric layer is arranged between the electrodes. At least one at least partially moisture-permeable and/or moisture-absorbing layer is arranged in some places on a side, facing away from a support material, of the electrode and/or the dielectric layer. The at least one electrode and/or the dielectric layer are arranged transversely between the support material and the moisture layer. In this way, a capacitance is at least partially changed by moisture hitting the dielectric layer, and a processing unit is designed and provided to measure and/or store this change, so as to create a capacitive moisture sensor.