Integrated Tire Air Valve With Wireless Overheat Warning
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Solution Overview
Problem
Commercial vehicle tires can overheat and catch fire due to insufficient air pressure, posing a significant risk, especially when transporting hazardous materials.
Innovation Solution
A system with a temperature sensor integrated into the air valve of the tire, connected to a control and regulating device, provides multiple warning levels to alert the driver to potential overheating, allowing for proactive measures to prevent tire fires by adjusting speed, route, and stopping at safe locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature sensor is installed in the tire cavity to continuously measure tire temperature, then tire overheating can be detected early, but the device complexity increases due to additional sensors, transmitters, and control systems
Solution Approach 1:
The temperature sensor is integrated into the air valve assembly, merging the temperature monitoring function with the existing air valve structure. This eliminates the need for separate sensor mounting hardware and reduces overall system complexity while maintaining continuous temperature monitoring capability inside the tire cavity
Solution Approach 2:
The air valve is designed to serve multiple functions: it acts as both the traditional air pressure regulation valve and as a mounting platform for the temperature sensor. The sensor housing is integrated into the valve body, allowing the single component to perform both air management and temperature monitoring tasks
2Reliability
If multiple warning levels and automatic control measures are implemented, then driver response time is reduced and safety is improved, but the device complexity and cost increase
Solution Approach 1:
The control system is pre-programmed with multiple warning levels (first warning at 80°C, second warning at 90°C, third warning at 100°C) and corresponding automatic actions (speed reduction, route change, stopping). These response protocols are established in advance, allowing the system to automatically execute appropriate safety measures without requiring complex real-time decision-making algorithms
Solution Approach 2:
The system continuously monitors tire temperature and provides feedback to the driver through multiple warning levels. The control unit receives real-time temperature data and automatically adjusts vehicle parameters (speed, route, stopping) based on predefined thresholds, creating a closed-loop feedback system that improves safety while maintaining manageable complexity through rule-based control
3Measurement precision
If the temperature sensor is positioned inside the tire cavity for accurate measurement, then measurement precision is improved, but the ease of operation and maintenance deteriorates due to difficult sensor access
Solution Approach 1:
The temperature sensor is merged with the air valve assembly, which is already a regularly accessed component for tire inflation and pressure checks. This integration allows the sensor to be positioned inside the tire cavity for accurate temperature measurement while maintaining easy access through the existing valve stem opening, eliminating the need for separate sensor access points
Solution Approach 2:
The air valve assembly with integrated sensor is designed to be self-contained and easily replaceable. When maintenance is needed, the entire valve assembly can be quickly removed and replaced without requiring specialized tools or complex disassembly procedures, allowing routine sensor maintenance to be performed during regular tire service intervals
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
The system effectively prevents tire overheating and fires by providing timely warnings and enabling automatic speed regulation and route adjustments, ensuring driver safety and preventing hazardous situations.
Implementation Method 1
a temperature sensor (17) fixed to the air valve (7), by means of which the temperature, in particular the air temperature, in a cavity (21) of the pneumatic tire can be measured
Implementation Method 2
the temperature sensor (17) is connected to a control and/or regulating device (39) by means of a wireless signal transmission device (29)
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to an air valve on a vehicle tire designed as a pneumatic tire, wherein a temperature sensor (17) is attached to the air valve (7) so that the temperature sensor (17) and the air valve (7) form a single unit, wherein the temperature sensor (17) is connected to the control and/or regulating device (39) by means of a wireless signal transmission device (29), wherein the temperature sensor (17) is associated with a transmitter (27) of the signal transmission device (29) by means of which the measurement signal of the temperature sensor (17) can be transmitted to a receiver (37) of the signal transmission device (29) associated with the control and/or regulating device (39), and wherein the temperature sensor (17) has at least one sensor contact element (19).The sensor contact element (17) and transmitter element (27) can be connected to at least one transmitter contact element (35) of the transmitter element (27) corresponding to the sensor contact element (19). According to the invention, for signal transmission between the sensor contact element (19) and transmitter contact element (35), the sensor contact element (19) is provided in an out-of-place position relative to the transmitter contact element (35), wherein a signal transmission device (31) is provided by means of which the sensor contact element (19) and the transmitter contact element (35) can be connected to each other for signal transmission, or the sensor contact element (19) is in the presence of the transmitter contact element (35) for signal transmission.