Vehicle Deviation Suppression Control Near Opposite-Lane Objects
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Solution Overview
Problem
Conventional deviation suppression control systems do not account for objects in the opposite direction when changing the vehicle's travel direction, leading to driver anxiety.
Innovation Solution
The system adjusts the lateral speed of the vehicle based on the presence of objects in the opposite direction, reducing the speed when such objects are detected to minimize driver anxiety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle changes travel direction to return to the travel area, then the vehicle deviation from the travel area is suppressed, but the driver feels anxiety when there is an object in the opposite area
Solution Approach 1:
The patent changes the lateral speed parameter dynamically based on detection results. When an object is detected in the opposite area, the lateral speed is reduced to a lower value, while when no object is detected, the lateral speed is maintained at a higher value. This parameter adjustment resolves the contradiction by making the return maneuver safer and less anxiety-inducing for drivers while still achieving deviation suppression.
2Object-affected harmful factors
If the lateral speed is decreased when objects are present, then driver anxiety is reduced, but the time to return to the travel area increases
Solution Approach 1:
The patent implements dynamic adjustment of lateral speed based on real-time detection of objects in the opposite area. The speed is not fixed but adapts to the situation: high speed when safe, low speed when objects are present. This dynamic approach resolves the time-anxiety contradiction by optimizing speed according to actual conditions rather than using a conservative fixed speed.
Solution Approach 2:
The system continuously detects objects in the opposite area and provides feedback to adjust the lateral speed accordingly. This closed-loop control allows the system to minimize return time when safe while reducing anxiety when objects are detected, resolving the contradiction through continuous monitoring and adaptation.
Data Source
AI summary
A deviation suppression control apparatus executes a deviation suppression control for controlling a lateral travel state of a vehicle to suppress the vehicle from deviating from a travel area when a deviation condition is satisfied. The deviation condition is satisfied when the vehicle is predicted to deviate from the travel area or when the vehicle has deviated from the travel area. When a suppression condition including a first condition is satisfied, the deviation suppression control apparatus decreases a magnitude of a lateral speed of the vehicle in the deviation suppression control compared to when the suppression condition is not satisfied. The first condition is satisfied when there is an object in an opposite area opposite to a deviation side where the vehicle deviates from the travel area.