Automated Driving Path Offset to Prevent Road Tire Traces
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Solution Overview
Problem
Automated driving vehicles consistently travel along the same path, leading to tire trace formation on roads, which can cause accidents and require costly maintenance, and existing technologies only address safety while not preventing tire trace formation.
Innovation Solution
An automated driving system that includes an in-vehicle apparatus capable of deviating the vehicle's position from the road center by an offset value in the transverse direction, preventing tire trace formation by altering the vehicle's path during automated driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If automated driving vehicles travel along the center of the road, then travel stability and lane keeping are improved, but tire trace formation occurs and road damage increases
Solution Approach 1:
The patent applies asymmetry by intentionally deviating the vehicle's travel path from the symmetric center position of the lane. The control apparatus calculates a deviation amount based on detected tire traces and shifts the vehicle's target position asymmetrically to one side or the other, preventing the vehicle from consistently following the same path and thereby avoiding reinforcement of tire traces at the lane center.
Solution Approach 2:
The patent implements dynamics by making the travel path adjustable and adaptive rather than fixed. The control apparatus dynamically modifies the vehicle's target position in real-time based on detected tire trace locations, creating a flexible travel pattern that responds to road conditions and prevents repetitive path following.
2Manufacturing precision
If automated driving vehicles consistently follow the same path, then automated driving precision is improved, but tire traces are reinforced and road maintenance costs increase
Solution Approach 1:
The system maintains precision by intentionally introducing asymmetric deviations from the lane center. The control apparatus calculates specific deviation amounts based on tire trace detection, creating a controlled asymmetric path that prevents trace reinforcement while maintaining precise automated control of the vehicle's position.
Solution Approach 2:
The patent changes the position parameter of the vehicle's travel path dynamically. Instead of maintaining a fixed center position, the control apparatus adjusts the target position parameter based on detected tire traces, creating variable path deviations that prevent trace reinforcement while maintaining automated driving precision through controlled parameter modification.
3Object-generated harmful factors
If vehicles deviate from the center position, then tire trace formation is prevented, but lane keeping accuracy decreases
Solution Approach 1:
The patent implements feedback by continuously detecting tire trace positions and using this information to adjust the vehicle's target position. The control apparatus receives feedback from tire trace detection and dynamically modifies the travel path deviation to prevent trace reinforcement while maintaining appropriate lane keeping within the lane boundaries.
Solution Approach 2:
The system achieves both tire trace prevention and lane keeping through dynamic adjustment. The control apparatus continuously adapts the vehicle's target position based on real-time tire trace detection, creating a dynamic travel pattern that prevents trace formation while maintaining lane discipline through bounded positional adjustments.
Data Source
AI summary
Formation of a tire trace due to automated driving travel of an automated driving vehicle (10) is prevented. In an automated driving system (500), an in-vehicle apparatus (100) is mounted in the automated driving vehicle (10) traveling a road by automated driving. The in-vehicle apparatus (100) effects automated driving such that a vehicle position through which the automated driving vehicle (10) travels deviates from a center in a transverse direction of the road by an offset value (321) in the transverse direction of the road.