Tire Pressure Monitoring Device Identification Code Assignment
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Solution Overview
Problem
Existing tire pressure monitoring systems face difficulties in reliably storing identification codes for commercial vehicles with twin wheels, as current methods are time-consuming, labor-intensive, and unsuitable for selective activation of individual tires, especially when dismounting is required.
Innovation Solution
A method involving a trigger transmitter that activates the tire pressure monitoring device by bringing the wheel close to it before mounting, allowing for easy and efficient storage of identification codes without the need for complex programming units, suitable for commercial vehicles with twin wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a programming unit connected to diagnostic interface is used to store identification codes, then reliable storage is achieved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts the identification code transmission function from the complex programming unit and places it directly in the tire pressure monitoring device. The tire pressure monitoring device independently transmits its identification code via radio signal when triggered, eliminating the need for complex diagnostic interface connections and workshop programming equipment.
Solution Approach 2:
The tire pressure monitoring device performs self-identification by autonomously transmitting its identification code when activated by the trigger transmitter. This self-service mechanism eliminates the need for external programming units to manually retrieve and store identification codes, simplifying the overall system while maintaining reliability.
2Ease of operation
If tire pressure monitoring device is activated by trigger transmitter, then identification code transmission is simplified, but activation range is limited
Solution Approach 1:
The wheel is brought into the limited range of the trigger transmitter before activation occurs. This preliminary positioning ensures reliable activation while the wheel is still accessible during mounting or maintenance operations, making the limited range acceptable for the intended application.
Solution Approach 2:
The patent replaces complex mechanical programming procedures with a simple radio frequency trigger mechanism. The trigger transmitter uses electromagnetic signals to activate the tire pressure monitoring device, eliminating the need for physical connections or complex mechanical interfaces while maintaining ease of operation.
3Reliability
If wheel is brought close to trigger transmitter for activation, then activation reliability is improved, but time consumption increases
Solution Approach 1:
The wheel is positioned close to the trigger transmitter as a preliminary step before final mounting. This positioning occurs naturally during the wheel change process, so the additional time required is minimal and integrated into the existing workflow rather than adding separate activation steps.
Solution Approach 2:
The activation process is merged with the wheel mounting procedure. The wheel is brought close to the trigger transmitter as part of the natural wheel change sequence, combining the activation action with the mechanical mounting process to minimize additional time consumption.
4Adaptability or versatility
If identification codes are stored in evaluation unit, then wheel position recognition is enabled, but system complexity increases
Solution Approach 1:
The patent extracts the identification code transmission function from the evaluation unit and places it in the tire pressure monitoring device. The tire pressure monitoring device now independently provides its identification code via radio signal, reducing the evaluation unit's complexity while maintaining its wheel position recognition capability.
Solution Approach 2:
The tire pressure monitoring device is given multi-functionality by combining pressure monitoring, temperature sensing, and identification code transmission in a single device. This universal approach eliminates the need for separate identification systems, reducing overall system complexity while maintaining adaptability.
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 reliable and efficient storage of identification codes with minimal technical requirements and time consumption, allowing for easy mounting and maintenance of wheels, even in complex configurations like twin wheels, without the need for expensive or cumbersome programming units.
Implementation Method 1
sends the measured values via radio signals to a receiver installed either at or in the vehicle
Implementation Method 2
the trigger transmitter which activates the tire pressure monitoring device of the chosen wheel by triggering
Data Source
AI summary
A method for the assigning of identification codes that are sent in radio signals by tire pressure monitoring devices at the wheels of a vehicle and that are received by a receiver provided in or at the vehicle, which signals are relayed to an evaluation unit connected to the receiver, in which unit is stored a specific identification code for every wheel position of the vehicle and wherein the stored identification codes are compared with identification codes in subsequently sent radio signals, whereby for the storage of the identification code of the tire pressure monitoring device of a chosen wheel the specific wheel position intended for the chosen wheel is entered at a control unit, whis is in communication connection with the evaluation unit, subsequently the tire pressure monitoring device of the chosen wheel is caused to send a radio signal containing its identification code, this radio signal is received and the therein contained identification code is stored in the evaluation unit or in the control unit at a memory location assigned to the specific wheel position.