Biased Lane Driving Control With Adaptive Overtaking Speed
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Solution Overview
Problem
During biased driving in a lane due to obstacles, the optimal overtaking speed cannot be determined, leading to increased driver discomfort, as existing technologies fail to effectively manage speed adjustments based on obstacle speed, lane encroachment, and lateral separation distance.
Innovation Solution
An apparatus and method that utilize sensors to detect obstacles and determine an overtaking speed based on the speed of the obstacle, lane encroachment amount, and lateral separation distance, controlling the vehicle to overtake the obstacle within a defined overtaking section, using a controller to calculate safe speeds and apply weights to preset maximum speeds for smooth overtaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle travels biased in the lane due to obstacles, then the vehicle can avoid the obstacle, but the user's sense of discomfort increases due to inability to determine optimal overtaking speed
Solution Approach 1:
The system dynamically changes the speed parameter during biased driving by calculating an overtaking speed based on multiple factors including obstacle speed, lane encroachment amount, and lateral separation distance. The controller adjusts the vehicle speed to maintain comfort while ensuring safe obstacle overtaking, transforming the fixed speed control into a dynamic parameter adjustment system.
2Loss of time
If the vehicle increases speed to overtake the obstacle quickly, then the overtaking time is reduced, but the driver's sense of discomfort increases due to abrupt speed changes
Solution Approach 1:
The system implements dynamic speed control during the overtaking process by continuously adjusting the vehicle speed based on real-time calculations of overtaking progress, obstacle parameters, and comfort constraints. The controller modulates acceleration and deceleration rates to achieve timely overtaking while maintaining smooth speed transitions that preserve driver comfort.
Solution Approach 2:
The system employs periodic speed adjustments during the overtaking maneuver, applying acceleration in phases rather than continuously, and using deceleration periods to maintain comfort. This periodic action pattern allows the vehicle to complete overtaking in reduced time while avoiding abrupt continuous acceleration that would cause discomfort.
3Ease of operation
If the vehicle maintains low speed during biased driving, then driver comfort is improved, but the ability to overtake the obstacle efficiently is reduced
Solution Approach 1:
The system optimizes the speed parameter by calculating an ideal overtaking speed that balances comfort and efficiency, rather than maintaining consistently low speed. The controller adjusts speed parameters dynamically based on obstacle characteristics and overtaking progress, achieving both driver comfort and overtaking efficiency through intelligent parameter optimization.
Data Source
AI summary
An apparatus for controlling biased driving of a vehicle includes a first sensor which is configured to detect an obstacle on a road, a second sensor that captures a surrounding image of the obstacle, and a controller which is configured for determining an overtaking speed based on at least one of a speed of the obstacle, an lane encroachment amount of the obstacle, or a lateral separation distance from the obstacle, and is configured to control the vehicle to overtake the obstacle at the overtaking speed when the vehicle travels biased in a lane of the road due to the obstacle.