Vehicle Offset Control for Adjacent Lane Safety
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Solution Overview
Problem
Existing vehicle control systems struggle to effectively manage the offset distance to other vehicles in various traveling scenarios, such as congestion and different road types, due to reliance on relative speed, which can lead to inadequate control in certain situations.
Innovation Solution
A traveling control apparatus that acquires traveling scene information and uses offset control modes to adjust the vehicle's position relative to adjacent vehicles, with first and second modes for different threshold distances and scenarios, allowing for dynamic adjustment based on automated driving levels and road types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If offset control is performed with a fixed offset amount based on relative speed, then the control system is simple to operate, but it cannot adapt to different traveling scenes (congestion, general road, expressway)
Solution Approach 1:
The patent applies dynamics by making the offset amount variable rather than fixed. The control unit dynamically adjusts the offset amount based on the detected traveling scene (congestion, general road, expressway) and automated driving level, allowing the system to adapt to different conditions without requiring completely different control systems for each scene.
Solution Approach 2:
The patent changes the parameter of offset amount based on traveling scene and automated driving level. By detecting the current traveling scene and adjusting the offset amount accordingly (e.g., larger offsets on expressways, smaller offsets in congestion), the system achieves adaptability while maintaining a unified control structure that doesn't significantly increase complexity.
2Reliability
If a large offset amount is applied to increase distance to other vehicles, then safety is improved, but the vehicle may deviate excessively from the lane center in certain scenarios
Solution Approach 1:
The patent applies local quality by adjusting the offset amount according to the specific traveling scene and automated driving level. Instead of using a uniformly large offset amount in all situations, the system applies locally optimized offset values - larger offsets when safety is paramount (e.g., high-speed expressway travel at high automated driving levels) and smaller offsets in scenarios where excessive deviation would be problematic (e.g., congested conditions or lower automated driving levels).
Data Source
AI summary
A traveling control apparatus is configured to control automated driving traveling of a vehicle based on a set automated driving level. The traveling control apparatus comprises: an acquisition unit configured to acquire traveling scene information that specifies a traveling scene of the vehicle; and a control unit configured to perform offset control to offset a traveling position of the vehicle in a vehicle width direction to increase a distance to another vehicle traveling side by side with the vehicle. The control unit performs the offset control by setting one of a first mode and a second mode based on at least one of the traveling scene information and the automated driving level.