Tire Pressure Control Using Temperature Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current tire inflation pressure control systems emit premature or erroneous warnings due to constant external conditions assumptions, leading to customer dissatisfaction and decreased system confidence, as they fail to account for varying external conditions like temperature and load during vehicle use.
Innovation Solution
A tire inflation pressure control system that includes sensors for outside temperature and barometric pressure, allowing for separate evaluation of air loss, load capacity, and dynamic tire stress, using an evaluation device to adjust warnings based on these factors and vehicle-specific inputs like velocity and tire contact area, enabling situation-related warnings and avoiding unnecessary alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warning thresholds are set strictly to ensure fastest recognition of flat tire and avoid additional CO2 emissions, then tire safety and environmental performance are improved, but premature or erroneous warnings occur due to varying external conditions like temperature changes
Solution Approach 1:
The patent applies parameter changes by adjusting the warning threshold based on temperature parameters. Instead of using a fixed pressure threshold, the system dynamically modifies the threshold according to the detected temperature, compensating for the physical effect where tire pressure naturally decreases with temperature drops. This resolves the contradiction by maintaining reliable safety warnings while avoiding premature alerts caused by temperature-related pressure variations.
Solution Approach 2:
The system transitions from a static warning threshold to a dynamic one that adapts to changing external conditions. The evaluation device continuously monitors temperature and adjusts the pressure warning threshold in real-time, making the system responsive to environmental changes. This dynamic approach ensures accurate warning detection while preventing false alarms during temperature transitions.
2Ease of operation
If a fixed pressure threshold is used for warnings, then the system is simple to operate and manufacture, but it produces erroneous warnings when external conditions like temperature and load change
Solution Approach 1:
The system implements self-service by automatically adjusting the warning threshold based on temperature detection without requiring user intervention. The evaluation device autonomously compensates for temperature effects on tire pressure, maintaining warning accuracy under varying conditions while keeping the system easy to operate. The driver simply needs to initialize the system once, after which the automatic temperature compensation handles all adjustments.
Solution Approach 2:
The patent incorporates feedback by continuously monitoring temperature and using this information to adjust the pressure warning threshold. The evaluation device receives temperature data, processes it through the compensation algorithm, and dynamically modifies the threshold accordingly. This closed-loop feedback mechanism ensures reliable warning accuracy while maintaining operational simplicity.
3Productivity
If tire pressure is checked frequently to ensure optimal conditions and avoid CO2 emissions, then environmental performance and tire maintenance readiness are improved, but customer satisfaction decreases due to unnecessary alerts from premature warnings
Solution Approach 1:
The system uses parameter changes to distinguish between normal temperature-related pressure variations and actual tire problems. By adjusting the threshold based on temperature, the system reduces false alarms that would otherwise require unnecessary customer intervention. This improves customer satisfaction while maintaining efficient tire maintenance monitoring.
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 provides timely and accurate warnings, reducing customer complaints and enhancing tire monitoring, thereby improving tire maintenance readiness and contributing to reduced CO2 emissions by avoiding unnecessary tire pressure checks and maintaining optimal tire conditions.
Implementation Method 1
sensor devices detect, for example, the air pressure and/or the temperature in the interior of the tire
Implementation Method 2
sensor devices detect, for example, the air pressure and/or the temperature in the interior of the tire
Implementation Method 3
the evaluation device stores at least the respective tire inflation pressure and the current outside temperature as initialization values, detects their current values during the drive
Data Source
AI summary
A warning strategy determines in a mutually separate manner the different effects that may occur in a tire and allows the increments and their priority in the display or indication for the driver to be evaluated in a mutually separate manner. This strategy occurs in connection with a sensor which can transmit at least the outside temperature and, preferably, also the barometric pressure to an evaluation device for detecting tire inflation pressure and tire temperature. As a result, in addition to an air loss monitoring function, the load capacity of the tire can also be evaluated at least as a function of the outside temperature. The evaluation device receives further input signals, such as the vehicle velocity, the tire contact area and/or the vehicle load, whereby also a dynamic tire stress can be taken into account as an indication or display for the driver.