Tire Sensor Fastening Verification for Accurate Data Storage
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Solution Overview
Problem
Existing methods for storing tire information in RFID transponders do not ensure accurate matching with the vehicle's tire, which is critical for safety-relevant dynamic-movement functions, as they lack reliable mechanisms to prevent data mix-ups during tire fitting and usage.
Innovation Solution
A method where a tire sensor is fastened to a tire with a passive RFID transponder, energy is supplied to emit tire information, and the sensor determines if it is correctly attached; if not, the information is rejected or not stored, and if detached, the information is deleted to prevent misuse, using electrical contacts for secure fastening and data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If tire information is stored in an RFID transponder and transmitted to a sensor during tire fitting, then the tire information can be used for dynamic-movement functions, but there is a risk that the information may be mixed up with incorrect tire data
Solution Approach 1:
The patent applies preliminary action by checking whether the sensor is properly fastened to the tire before storing tire information in the sensor. The fastening check is performed in advance of the data storage operation, ensuring that only when the sensor is correctly installed on the intended tire will the tire information be transferred and stored. This prevents mix-ups by establishing the correct physical association before the data transfer occurs.
2Measurement precision
If the sensor continuously stores and transmits tire information, then dynamic-movement functions can be controlled accurately, but the sensor may be detached and used with wrong tires causing safety issues
Solution Approach 1:
The patent implements feedback by continuously monitoring the fastening status of the sensor and using this information to control the storage and transmission of tire information. The system receives feedback signals indicating whether the sensor is properly fastened, and based on this feedback, it either stores/transmits the tire information or deletes it. This closed-loop control prevents sensor misuse by ensuring that tire information is only maintained when the sensor is correctly installed on its designated tire.
Solution Approach 2:
The patent applies discarding and recovering by deleting tire information from the sensor when the fastening check fails or when the sensor is detached. Instead of continuously retaining the data regardless of installation status, the system discards the tire information when proper fastening is not detected, preventing potential misuse. The capability to store and transmit is recovered when proper fastening is re-established.
3Reliability
If the tire sensor requires fastening verification before storing tire information, then data mix-ups are prevented, but the complexity of the installation process increases
Solution Approach 1:
The patent applies self-service by designing the fastening verification system to automatically detect and verify the sensor's installation status without requiring external intervention or complex manual procedures. The sensor itself performs the fastening check, and the system automatically determines whether to store or delete tire information based on the verification result. This automation reduces the perceived complexity for the user while maintaining high reliability.
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
Ensures process reliability in providing tire-specific data to the vehicle, preventing mix-ups and allowing safe, functional configuration of dynamic-movement functions by securely storing and transmitting tire information.
Implementation Method 1
The RFID transponder is then supplied with energy via an energy field (for example, via an electromagnetic or magnetic field), with the result that the RFID transponder emits the stored tire information
Data Source
AI summary
A method is provided for storing tire information in a tire sensor. For this purpose, a tire sensor is fastened to a tire having a passive RFID transponder. The RFID transponder is then supplied with energy via an energy field, with the result that the RFID transponder emits the stored tire information. If the tire sensor has determined that the tire sensor is fastened to the tire, the tire information is received and is permanently stored in the tire sensor. The tire information written to a tire sensor is preferably transmitted to the vehicle by the tire sensor and is then taken into account during a movement-dynamic function, for example.