Gravity-Driven Tire Pump for Automatic Pressure Maintenance
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Solution Overview
Problem
Tire inflation remains a challenging task for drivers, with underinflation or overinflation leading to safety and efficiency issues, and existing solutions require manual effort and frequent monitoring, which many drivers neglect due to inconvenience.
Innovation Solution
The implementation of gravity-driven pumps mounted on the tire rim, which utilize changes in orientation and gravitational force to automatically inflate tires and generate electricity for powering sensors and other components, allowing for dynamic adjustment of pump parameters based on driving conditions and tire data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual tire inflation monitoring is implemented, then tire inflation accuracy is improved, but user time and convenience deteriorate
Solution Approach 1:
The system enables self-service by automatically monitoring tire pressure through integrated sensors and maintaining optimal inflation through the gravity-driven pump mechanism, eliminating the need for manual user intervention while continuously ensuring accurate tire inflation
Solution Approach 2:
The patent replaces manual mechanical tire checking with an automated electronic sensor-based monitoring system that continuously measures tire pressure and triggers automatic pumping when needed, substituting user time with automated mechanical and electronic systems
2Extent of automation
If gravity-driven pumps are used for automatic tire inflation, then automation level is improved, but device complexity increases
Solution Approach 1:
The system uses gravity-driven pump mechanisms that leverage natural gravitational forces to inflate tires, eliminating the need for complex powered pumps or external energy sources, thereby achieving high automation with reduced mechanical complexity
Solution Approach 2:
The gravity-driven pump system serves multiple functions: it automatically inflates tires when pressure is low, can be configured with different pump parameters for various driving conditions, and integrates with the sensor system to provide a complete automated tire maintenance solution
3Reliability
If pump parameters are dynamically adjusted based on driving conditions, then tire performance is improved, but control system complexity increases
Solution Approach 1:
The system implements dynamic adjustment of pump parameters based on real-time sensor data and driving conditions, allowing the pump to adapt its operation (such as pump rate and duration) to maintain optimal tire performance across varying loads, speeds, and environmental conditions
Solution Approach 2:
The control system uses feedback from tire pressure sensors and vehicle condition data to automatically adjust pump parameters, creating a closed-loop system that maintains reliable tire performance without requiring complex manual intervention or pre-programming for different scenarios
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
This solution provides an automatic and efficient means to maintain optimal tire inflation, reducing gas leakage and enhancing safety and fuel efficiency by using gravity-driven pumps that adjust according to various driving patterns and conditions, eliminating the need for frequent manual checks.
Implementation Method 1
rotational motion of the target tire about an axis causes gravity to move an element in a first direction at a first rotational position to yield a first stroke, and causes gravity to move the element in a second direction at a second rotational position to yield a second stroke
Data Source
AI summary
Disclosed herein are systems, methods, and computer-readable storage media for gravity-driven pumps, gravity-driven power generators that power electric pumps, as well as various supporting concepts, mechanisms, and approaches. As a tire rotates around an axle, the pull of gravity varies for a given point on the tire. While gravity is always pulling ‘down’, the force relative to a fixed point on the tire changes. Gravity-driven pumps exploit these changes in gravitational force to do work. Automatic, gravity-driven pumps can be used to inflate tires to offset the natural gas leakage of modern tires, and can maintain tire pressure and inflation within a desired or optimal range. As different conditions are met, pump parameters are determined which can adjust the pumps. Such conditions include driving patterns, load, and temperature, and resulting adjustments include turning on and off pumps, varying stroke length, and varying the number of strokes required.