Universal Tire Pressure Sensor With Configurable Memory Module
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Solution Overview
Problem
Existing universal tire pressure sensors require adaptation to different vehicle systems for communication protocols, carrier frequencies, and data formats, limiting their compatibility across various vehicle manufacturers.
Innovation Solution
A universal tire pressure sensor design that includes a separate memory module for storing configuration data, allowing initial configuration and subsequent use as a data logger for historical measurement storage, enabling flexible communication protocols and expanded diagnostic capabilities through wireless or galvanic data retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a universal tire pressure sensor uses a separate memory module for storing configuration data, then adaptability to different vehicle systems is improved, but device complexity increases
Solution Approach 1:
The memory system is segmented into a separate memory module distinct from the main sensor circuitry. This separate module stores configuration data for multiple vehicle manufacturers, allowing the sensor to adapt to different communication protocols and data formats without increasing the complexity of the core sensing mechanism.
Solution Approach 2:
The separate memory module acts as an intermediary between the sensor and various vehicle systems. It stores pre-configured communication parameters that mediate between the universal sensor design and manufacturer-specific requirements, enabling compatibility without direct integration complexity.
2Ease of operation
If configuration data is stored in a separate memory module, then ease of configuration is improved, but manufacturing complexity increases
Solution Approach 1:
Configuration data for multiple vehicle manufacturers is pre-loaded into the separate memory module during manufacturing. This preliminary action eliminates the need for complex post-manufacturing configuration procedures, as the sensor can automatically select appropriate configurations based on detected vehicle system parameters.
Solution Approach 2:
The sensor system performs self-configuration by automatically reading relevant configuration data from the separate memory module based on detected vehicle parameters. This self-service approach eliminates manual configuration steps and reduces manufacturing complexity despite the presence of additional memory hardware.
3Adaptability or versatility
If the sensor supports multiple communication protocols, then versatility across vehicle manufacturers is improved, but device complexity increases
Solution Approach 1:
The communication protocol is made dynamic rather than static. The sensor can dynamically switch between different communication protocols by loading appropriate configuration parameters from the separate memory module. This dynamic adaptability allows support for multiple protocols without requiring permanent hardware implementations of all protocols.
Solution Approach 2:
Different communication protocols are implemented through parameter changes in the existing communication circuit rather than through hardware modifications. The separate memory module stores various parameter sets (carrier frequencies, modulation schemes, data formats) that can be loaded to change the communication protocol behavior without increasing circuit complexity.
Data Source
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Figure 3
AI summary
The invention relates to a tire pressure sensor for motor vehicles, comprising a housing (1) and an electronic control circuit (2) which has an integrated measuring circuit (2a) with a pressure sensor (4). Configuration data for the measuring circuit and/or the control circuit can be stored in an internal storage device (2c) of the control circuit (2), and means (6, 9; 7, 10) for a wireless communication transmit pressure measurement values detected by the measuring circuit (2a) to a remote receiving device according to the configuration data. The control circuit (2) is coupled to a separate storage unit (15) with a non-volatile storage device in which a plurality of data packets with different respective configuration data are stored. The separate storage unit (15) can be actuated in order to copy a data packet stored therein onto the internal storage device (2c) of the control circuit in order to thus configure the measuring circuit and/or the control circuit. After the configuration, the measurement values detected by the measuring device are stored in the separate storage unit.