3D Wheel Slip Visualization for Off-Road Vehicle Control
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Solution Overview
Problem
Off-roading vehicles face challenges in controlling wheel slip, leading to loss of vehicle control due to insufficient friction at the tire-road interface, which existing technologies fail to effectively represent or mitigate in real-time or for review purposes.
Innovation Solution
A system that uses sensor data from vehicles, including wheel speed, yaw angle, GPS, and environmental sensors, to compute forces imparted to the vehicle and render a 3D animation of the vehicle's motion, overlaying wheel slip, pitch, roll, and yaw values to visualize and analyze the vehicle's handling on off-road terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wheel slip is allowed to occur during off-roading, then vehicle acceleration and mobility are improved, but vehicle control and stability deteriorate
Solution Approach 1:
The system continuously monitors wheel slip parameters and provides real-time visual feedback to the driver through augmented reality display. The feedback loop allows the driver to adjust driving behavior to maintain optimal wheel slip levels for acceleration while preventing excessive slip that would compromise control, thus resolving the contradiction between speed improvement and control reliability.
2Ease of operation
If real-time wheel slip visualization is provided to the driver, then driver decision-making and vehicle control are improved, but device complexity and computational requirements increase
Solution Approach 1:
The system creates a virtual copy of the physical vehicle environment through augmented reality overlay, displaying wheel slip parameters and vehicle state information in the driver's field of view. This virtual representation provides comprehensive control information without requiring additional physical instruments or complex interface mechanisms, thus improving ease of operation while minimizing increases in device complexity.
3Measurement precision
If comprehensive sensor data is collected for 3D animation rendering, then animation accuracy and analysis quality are improved, but data processing time and computational resources increase
Solution Approach 1:
The system pre-processes and buffers sensor data during vehicle operation, organizing measurement data from multiple sensors into structured formats ready for rapid animation rendering. This preliminary data preparation ensures high animation accuracy when rendering 3D visualizations without requiring extensive processing time during actual or post-drive analysis, thus resolving the contradiction between measurement precision and time loss.
Data Source
AI summary
A 3D animation of the response of a vehicle to forces imparted to the vehicle during conveyance thereof over a course. Sensor data are accepted by a processor that defines an instantaneous state of the vehicle. Forces imparted to the vehicle are computed from temporal changes in the state. Wheel slip is determined by the processor from the computed forces. A 3D graphical representation of the vehicle is rendered on a display as being in motion under influence of the wheel slip.