Tire Pressure Control Device with Microprocessor and Valve

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Solution Overview

Problem

Existing tire pressure monitoring and inflation methods require multiple manual readings and lack efficient automatic adjustment, leading to inefficiencies and potential over-inflation or under-inflation issues.

Innovation Solution

A tire inflation pressure control device with a housing and pressure chamber, featuring multiple ports for connection to a tire valve, pressurized source, and pressure release, allowing for automatic pressure adjustment and monitoring, including manual or automatic activation of a pressurized gas cartridge to maintain optimal pressure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual pressure monitoring devices (piston-plunger or dial-type gauges) are used to check tire pressure, then pressure can be measured, but multiple readings are required to determine actual pressure, reducing efficiency

Engineering Contradiction:

Improvetire pressure measurement accuracyVSAvoidpressure checking efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The system uses a microprocessor to automatically process pressure readings and determine actual tire pressure without requiring manual interpretation by the operator. The microprocessor eliminates the need for multiple manual readings by automatically compensating for measurement variations and calculating the true pressure value.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical pressure gauge operations with an automated electronic system comprising a pressure sensor, microprocessor, and display. This substitution eliminates the need for operators to manually read and interpret gauge positions, automating the pressure determination process.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If automatic pressure monitoring devices are installed in vehicles, then low pressure conditions can be detected, but the devices do not alleviate the iterative process for manually adjusting and checking pressure

Engineering Contradiction:

Improvelow pressure detection capabilityVSAvoidmanual pressure adjustment complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system automatically controls the inflation valve based on microprocessor decisions. When tire pressure falls below the threshold, the microprocessor automatically opens the valve to admit air, and automatically closes it when the desired pressure is reached, eliminating manual adjustment operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors tire pressure via the pressure sensor and uses this feedback to control the inflation valve. The microprocessor compares actual pressure readings with the target pressure threshold and automatically adjusts the valve state accordingly, creating a closed-loop control system.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If multiple manual readings are required to determine actual pressure, then measurement can be performed, but time is lost in the iterative checking process

Engineering Contradiction:

Improveactual pressure determinationVSAvoidpressure checking time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces the manual iterative reading process with an automated electronic measurement and calculation system. The pressure sensor takes a single reading, the microprocessor processes it to determine actual pressure, and the display shows the result immediately, eliminating the time required for multiple manual readings.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system uses an electronic copy of the pressure measurement signal to generate the actual pressure value without requiring physical re-reading of the gauge. The microprocessor creates a digital representation of the pressure data and processes it computationally.

Inventive Principle:

Principle #26Copying

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 device ensures accurate and efficient tire pressure management, reducing manual effort and preventing premature tire wear by automatically maintaining pressure within a designated range.

Implementation Method 1

a pressure sensor installed in the tire and electrically connected to the microprocessor

Methodology Applied

Scientific EffectPressure detection:

Implementation Method 2

The microprocessor may control an inflation valve in communication with the tire to release air from the tire or admit pressurized air into the tire based on a pressure differential

Methodology Applied

Scientific EffectPressure differential control:

Data Source

PatentUS10683944B1Tire inflation pressure control device

Publication Date: 2020.06.16 HUGHES EUGENE A

AI summary

A tire inflation pressure control device of this disclosure may be a handheld device temporarily connected to a valve stem of a tire and used to check, add, or reduce pressure as needed. One or more ports of the device may share these functions. In other embodiments, the device may be attached to a rim of the tire and include a toroidal-shaped pressure chamber. Pressure may be increased using an installed pressurizer or one that is temporarily connected when needed. In some embodiments, the pressurizer is a CO2, nitrogen, or nitrogen/argon gas cartridge. Likewise, a pressure gauge may be installed or temporally connected when needed, and used at the same time as the pressurizer.