Tire Pressure Sensor with Programmable Interface and Elastic Insulating Layer
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Solution Overview
Problem
Existing tire pressure monitoring systems (TPMS) face challenges in adapting to different communication protocols and data formats required by various vehicle manufacturers, necessitating a universal device that can be easily and reliably programmed for multiple applications.
Innovation Solution
A tire pressure measuring module with a programmable memory and a transmitter, housed in a mechanically stable enclosure, featuring an elastic insulating layer for contact areas that can be perforated by programming device contact pins, allowing for quick and secure data transfer and programming without opening the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a universal tire pressure measuring module is designed to work with multiple vehicle systems, then adaptability is improved, but device complexity increases due to the need for programmable memory and multiple communication protocol support
Solution Approach 1:
The tire pressure measuring module is designed with a programmable memory that can store multiple communication protocols and data formats. This allows a single universal device to adapt to different vehicle manufacturers' requirements without needing multiple specialized modules, thereby improving adaptability while managing complexity through standardized architecture
Solution Approach 2:
The module uses a programmable interface that allows communication parameters (protocols, data formats, sequences) to be changed and stored in memory. This enables the same hardware to operate with different parameter sets for different vehicle systems, achieving versatility without redesigning the device structure
2Reliability
If the housing is made fully sealed and encapsulated for environmental protection, then reliability against environmental factors is improved, but ease of programming deteriorates as the housing would need to be opened for access
Solution Approach 1:
An elastic insulating layer is introduced as an intermediary between the sealed housing and the programming interface. This layer can be temporarily perforated by programming device contact pins to establish electrical connection with the memory, allowing programming while maintaining the sealed housing structure. The elastic material enables temporary access without compromising the overall seal integrity
Solution Approach 2:
The elastic insulating layer acts as a flexible thin film that can be temporarily deformed or perforated during programming operations. This flexible barrier allows controlled access to the programming interface while maintaining the protective sealed enclosure, combining reliability with programming accessibility
3Ease of operation
If contact areas are left exposed for programming access, then ease of programming is improved, but protection against environmental factors and electrical malfunctions deteriorates
Solution Approach 1:
The elastic insulating layer serves as a protective intermediary that covers the contact areas during normal operation, shielding them from environmental factors and electrical interference. During programming, the layer is temporarily perforated to allow contact pin access, after which the elastic material naturally closes the perforations to restore protection
4Productivity
If a programmable interface with contact pins is implemented, then productivity of programming process is improved, but device complexity increases due to additional interface components
Solution Approach 1:
The elastic insulating layer provides self-service functionality by automatically closing perforations after programming contact pins are removed. This self-healing characteristic eliminates the need for additional mechanical closing mechanisms or complex interface structures, achieving efficient programming access while minimizing added complexity
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
Enables universal use of tire pressure measuring modules, allowing for rapid and secure programming of communication protocols, protecting against environmental factors and ensuring reliable operation across different vehicle systems.
Implementation Method 1
The contact areas are coated with an elastic insulating layer, which is designed such that it can be perforated by the contact pins of the programming device for programming. The insulating layer is designed, however, such that a mechanical perforation of the insulating layer by the programming device, in particular by the contact pins, is possible. Furthermore, the insulating layer is elastic, in order to enable a substantial or complete closure of the insulating layer after the programming procedure and the removal of the contact pins.
Data Source
AI summary
A tire pressure measuring module for a vehicle tire includes a receiving space in which are disposed a pressure sensor, a control circuit coupled to the pressure sensor and a transmitter for wireless transmission of data from the control circuit to a vehicle side receiver. The receiving space is designed to be attached to the vehicle tire. The control circuit has programmable storage devices and a programming interface for writing on the storage device is designed with contact areas. The contact areas are galvanically contacted by contact pins of an associated programming device. The contact areas are covered by an elastic insulating layer which is designed so that it can be perforated by the contact pins.