Guardian Wheel Traction Control for Wheel Slide Prevention
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Solution Overview
Problem
Wheeled vehicles face issues with wheel slip and slide due to excessive braking forces, leading to wear and reduced control, as existing systems lack effective methods to prevent wheel slide and extend wheel service life.
Innovation Solution
A traction control system with a guardian wheel and sensors that applies a second braking force to increase the slide risk of the guardian wheel, allowing for early detection of sliding and corrective action to prevent non-guardian wheels from slipping, utilizing a braking system connected to both guardian and non-guardian wheels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If braking force is applied to wheels to control vehicle speed, then vehicle speed control is improved, but wheel slide occurs when braking force exceeds frictional force
Solution Approach 1:
The system applies a preliminary braking force to the guardian wheel before the non-guardian wheels reach their slide threshold. This early action creates a warning signal that allows the control system to reduce braking force before wheel slide occurs on the non-guardian wheels, thus preventing the harmful effect while maintaining speed control capability
Solution Approach 2:
The guardian wheel serves as an intermediary element that experiences increased braking force relative to non-guardian wheels. It acts as a sacrificial component that provides early warning of approaching slide conditions, allowing the system to adjust braking forces on non-guardian wheels to prevent their slide while maintaining overall vehicle speed control
2Reliability
If aggressive braking force is applied to arrest wheel slide, then wheel slide control is improved, but wheel wear increases reducing service life
Solution Approach 1:
By detecting slide conditions on the guardian wheel before they occur on non-guardian wheels, the system can take preliminary corrective action to reduce braking forces on non-guardian wheels. This prevents the need for aggressive braking corrections that would cause excessive wheel wear, thereby extending wheel service life while maintaining effective wheel slide control
Solution Approach 2:
The system continuously monitors the guardian wheel for slide conditions and uses this feedback to adjust braking forces on non-guardian wheels in real-time. This closed-loop control allows the system to maintain wheel slide prevention without applying excessive braking forces that would accelerate wheel wear, thus preserving wheel service life
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 effectively prevents wheel slip by increasing the adhesion requirement of the guardian wheel, providing an early warning for excessive braking and reducing wear on non-guardian wheels, thereby extending their service life and improving vehicle control.
Implementation Method 1
A frictional force exists between the contact area and the traversed surface referred to as the wheel-contact-surface frictional force
Data Source
AI summary
A system includes a plurality of wheels, a braking system, and one or more sensors. The plurality of wheels includes a guardian wheel and at least one non-guardian wheel and is disposed on a wheeled vehicle. The braking system is operatively connected to the guardian and non-guardian wheels and applies a first braking force to the at least one non-guardian wheel and a second braking force to the guardian wheel. The second braking force increases a slide risk of the guardian wheel beyond a slide risk of the at least one non-guardian wheel. One or more sensors disposed within the wheeled vehicle detect sliding of the guardian wheel allowing a corrective action to be taken to prevent sliding of the at least one non-guardian wheel.