Tire Pressure Control System for Off-Road Vehicles
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Solution Overview
Problem
Off-road work vehicles face performance issues due to varying load profiles, which affect tire pressure, leading to decreased fuel efficiency and traction as tires deform under inappropriate pressure conditions.
Innovation Solution
A tire management system that includes load sensors, pressure sensors, and a control unit to dynamically adjust tire pressure based on load profiles, maintaining optimal tire shape and contact with the ground through fluid pressure adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If tire pressure is lower than desired for a particular tire load, then the tire may deform along the sidewalls, but this decreases fuel efficiency of the off-road vehicle
Solution Approach 1:
The system dynamically adjusts tire pressure based on real-time load sensor measurements and terrain conditions. The control unit continuously monitors load on each tire and automatically adjusts pressure via individual tire valves, making the tire pressure adaptive rather than static, thereby optimizing fuel efficiency across varying operating conditions
Solution Approach 2:
The system employs load sensors on each tire that provide feedback to the control unit about the actual load being carried. This feedback loop enables the control unit to determine appropriate pressure adjustments and activate valves to maintain optimal tire pressure, preventing sidewall deformation and associated fuel efficiency losses
2Shape
If tire pressure is higher than desired for a particular tire load, then the tire may deform along the tread, but this decreases traction of the vehicle
Solution Approach 1:
The system dynamically adjusts tire pressure based on real-time load sensor measurements and terrain conditions. The control unit continuously monitors load on each tire and automatically adjusts pressure via individual tire valves, making the tire pressure adaptive rather than static, thereby optimizing traction across varying operating conditions
Solution Approach 2:
The system employs load sensors on each tire that provide feedback to the control unit about the actual load being carried. This feedback loop enables the control unit to determine appropriate pressure adjustments and activate valves to maintain optimal tire pressure, preventing tread deformation and associated traction losses
3Adaptability or versatility
If a single off-road work vehicle performs various tasks with different load profiles, then the vehicle provides versatility, but the varying loads affect tire performance and require different optimal pressures
Solution Approach 1:
The system divides the tire pressure control into individual segments, with separate load sensors, pressure sensors, and control capabilities for each tire. This segmentation allows each tire to be independently optimized for its specific load conditions, whether the vehicle is pulling implements (affecting rear tires more) or carrying loaders (affecting front tires more), thereby maintaining proper tire shape across diverse operational scenarios
Solution Approach 2:
The system dynamically adjusts tire pressure based on real-time load sensor measurements and terrain conditions. The control unit continuously monitors load on each tire and automatically adjusts pressure via individual tire valves, making the tire pressure adaptive rather than static, thereby optimizing fuel efficiency across varying operating conditions
Solution Approach 3:
The system employs load sensors on each tire that provide feedback to the control unit about the actual load being carried. This feedback loop enables the control unit to determine appropriate pressure adjustments and activate valves to maintain optimal tire pressure, preventing sidewall deformation and associated fuel efficiency losses
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 enhances fuel efficiency, traction, and tire footprint by maintaining desired tire pressure, adapting to changing load profiles during vehicle operation.
Implementation Method 1
a first load sensor that determines a first load placed on a first tire
Implementation Method 2
a first pressure sensor that determines a first fluid pressure within the first tire
Implementation Method 3
the first valve adjusts the first fluid pressure within the first tire based at least in part on the first fluid pressure adjustment instruction
Data Source
Figure 1
Figure 2~3C
Figure 4A~4B
AI summary
The present disclosure describes a tire management system (44) for a vehicle (10). The tire management system (44) includes a first load sensor (40) that determines a first load placed on a first tire (16, 18) of the vehicle (10), a first pressure sensor (50) that determines a first fluid pressure within the first tire (12, 16), a control unit (52) communicatively coupled to the first load sensor (40) and to the first pressure sensor (50). The control unit (52) generates a first fluid pressure adjustment instruction based at least in part on the first load determined by the first load sensor (40) and the first fluid pressure determined by the first pressure sensor (50). Additionally, the tire management system includes a first valve (48) fluidly coupled to the first tire (16, 18) and communicatively coupled to the control unit (52), in which the first valve (48) adjusts the first fluid pressure within the first tire (16, 18) based at least in part on the first fluid pressure adjustment instruction.