Dynamic Tire Pressure Control for Energy Efficiency
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Solution Overview
Problem
Current vehicle technologies fail to effectively reduce energy consumption by dynamically adjusting pneumatic tire air pressure based on driving conditions, leading to inefficiencies in fuel and electricity usage.
Innovation Solution
A traveling device equipped with an air pressure adjusting system that dynamically changes tire air pressure based on vehicle speed, acceleration, braking, turning, proximity to other vehicles, road conditions, and manual operation, using sensors and a control unit to adjust pressure above or below recommended levels for optimal performance and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If air pressure is increased above recommended inflation pressure to reduce rolling resistance and improve fuel efficiency, then energy consumption is reduced, but tire grip and braking performance deteriorate
Solution Approach 1:
The patent applies dynamics by making the tire air pressure adjustable rather than fixed. The air pressure control device dynamically changes tire pressure based on driving conditions (acceleration, braking, turning, constant speed) to optimize both fuel efficiency and tire grip at different times, resolving the contradiction between energy savings and handling performance.
Solution Approach 2:
The patent changes the physical parameter of air pressure based on driving conditions. By increasing pressure during constant speed cruising to reduce rolling resistance, and decreasing pressure during acceleration/braking/turning to improve grip, the system resolves the contradiction between energy consumption and tire performance.
2Reliability
If air pressure is decreased to improve tire grip and braking performance, then vehicle stability improves, but rolling resistance increases and fuel efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts air pressure based on real-time driving conditions. Pressure is lowered during braking to improve grip, then raised during constant speed cruising to reduce rolling resistance, allowing the system to achieve both good braking performance and fuel efficiency at different times.
Solution Approach 2:
The air pressure parameter is changed based on driving phase: decreased during braking/acceleration/turning for optimal grip, and increased during constant speed for optimal fuel efficiency, resolving the contradiction between braking performance and fuel consumption.
3Device complexity
If a fixed air pressure system is used, then device complexity is low, but energy consumption cannot be optimized for different driving conditions
Solution Approach 1:
The patent introduces a dynamic air pressure adjustment system with sensors and control devices that automatically adjust pressure based on driving conditions. This moderate increase in complexity enables significant energy savings by optimizing tire pressure for each driving phase, resolving the contradiction between system simplicity and energy optimization.
Data Source
AI summary
A traveling device includes a pneumatic tire mounted on a vehicle, an air pressure adjusting device that adjusts air pressure of the pneumatic tire, and an air pressure control device that increases the air pressure to be higher than a recommended inflation pressure when travel speed of the vehicle is not more than a designated speed.