Tire Transmitter Count Check for Accurate Wheel Position Detection
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Solution Overview
Problem
Existing tire air pressure monitoring systems struggle to accurately detect the position of transmitters on wheels, especially in cases where transmitters fail to operate or are incorrectly attached, leading to incorrect wheel position detection.
Innovation Solution
A tire mounting state detection system that uses a receiving unit to detect radio signals from transmitters, a vehicle configuration holding unit to store the number of wheels, a transmitter number detection unit to count the number of transmitters, and a state detection unit to determine if the number of transmitters matches the number of wheels, outputting abnormal states when discrepancies are found.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic wheel position detection is implemented using radio signal receivers, then the complexity of manually updating sensor-wheel position correspondence is reduced, but the system cannot correctly detect wheel positions when transmitters fail or are incorrectly attached
Solution Approach 1:
The system implements feedback by comparing the detected number of transmitters against the expected number of wheels. The transmitter number detection unit continuously monitors radio signals and provides feedback to the state detection unit, which identifies abnormalities when the counts don't match, enabling the system to detect and report incorrect transmitter mounting states
Solution Approach 2:
The system performs self-diagnosis by automatically detecting and identifying abnormal transmitter states without requiring external intervention. The transmitter number detection unit and state detection unit work together to self-verify the correctness of transmitter installation and automatically generate abnormal state notifications
2Device complexity
If the system assumes all transmitters are operating normally for automatic wheel position detection, then the detection process is simplified, but the system fails to identify failed or incorrectly attached transmitters
Solution Approach 1:
The system performs an additional verification step beyond basic wheel position detection. Instead of simply detecting wheel positions, the transmitter number detection unit counts transmitters and the state detection unit compares this count against the expected wheel count, creating an extra layer of verification that identifies abnormal states without significantly increasing overall system complexity
Solution Approach 2:
The system performs preliminary verification of transmitter operation before finalizing wheel position detection. The transmitter number detection unit checks for the presence and operational status of transmitters in advance, allowing the system to identify and flag abnormal states before they compromise the accuracy of wheel position detection
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 detects abnormal transmitter states and their positions, improving the accuracy of wheel position detection and facilitating quick identification of issues such as failed or incorrectly attached transmitters.
Implementation Method 1
a sensor including a transmitter of a radio signal (radio wave) is widely mounted in the tire
Data Source
AI summary
A tire mounting state detection system (100) is provided with a vehicle configuration holding unit (230) holding a vehicle configuration including the number of wheels of a vehicle (10); a transmitter number detection unit (250) detecting the number of transmitters based on a radio signal received by a receiving unit; a state detection unit (260) detecting whether or not the number of transmitters exceeds or is short the number of wheels based on the number of wheels based on the vehicle configuration and the number of transmitters detected; and an output unit (270) outputting that the state of the transmitter is abnormal when it is determined that the number of transmitters exceeds or is short the number of wheels.