Vehicle Control System Dynamic Inter-Vehicle Distance Adjustment
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Solution Overview
Problem
Existing vehicle control systems struggle to manage inter-vehicle distances appropriately when a vehicle from an adjacent lane merges into the own lane, often leading to inadequate prioritization and increased risk of cutting-in, which can compromise safety and occupant convenience.
Innovation Solution
A vehicle control system that includes a recognition unit to identify changes in adjacent vehicle behavior and position, adjusting inter-vehicle distances by reducing or increasing the gap based on predetermined conditions, using a combination of sensors and control units to execute appropriate driving operations, such as reducing distance when a vehicle is identified as cutting-in and increasing it when merging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the own vehicle unconditionally gives priority to another vehicle entering the own lane, then the another vehicle can enter safely, but the own vehicle must stop following control and cannot maintain optimal inter-vehicle distance
Solution Approach 1:
The system dynamically adjusts the inter-vehicle distance based on the behavior of the merging vehicle. When a merging vehicle is detected, the own vehicle increases the distance to allow safe merging. When the merging vehicle completes the lane change, the system returns to normal following control with optimal distance, thus adapting the control strategy to real-time conditions
Solution Approach 2:
The system changes the inter-vehicle distance parameter conditionally. Instead of maintaining a fixed priority policy, the distance parameter is adjusted based on whether a merging vehicle is present and whether the merge is complete, allowing the system to optimize both safety and following control efficiency under different conditions
2Adaptability or versatility
If the own vehicle stops following control to cope with another vehicle, then the another vehicle can merge, but the own vehicle cannot maintain optimal following distance and response
Solution Approach 1:
The system performs preliminary identification of merging vehicles by monitoring adjacent lanes. When a vehicle is identified as intending to merge, the system proactively adjusts the inter-vehicle distance before the actual merge occurs, allowing smooth transition without interrupting following control
Solution Approach 2:
The system continuously monitors the position and behavior of merging vehicles and adjusts the inter-vehicle distance in real-time based on this feedback. When the merging vehicle completes the lane change, the system receives feedback and automatically resumes normal following control, maintaining continuity without complete stop
3Object-affected harmful factors
If the own vehicle reduces inter-vehicle distance aggressively to suppress cutting-in, then cutting-in is prevented, but safety and occupant comfort are compromised
Solution Approach 1:
The system applies different control strategies to different situations. When a merging vehicle is detected, the system increases distance locally in that direction to allow safe merging. When no merging vehicle is present, normal following control is maintained. This localized adaptation prevents unnecessary aggressive behavior that would compromise safety and comfort
Data Source
AI summary
A vehicle control system includes a recognition unit recognizing a surrounding environment of an own vehicle, and a driving control unit controlling a speed or steering of the own vehicle on the basis of a recognition result from the recognition unit, in which the driving control unit causes the own vehicle to perform a first operation in which an inter-vehicle distance between a preceding vehicle and the own vehicle is reduced, and a second operation in which an inter-vehicle distance between the preceding vehicle and the own vehicle is increased after the first operation in a case where a change amount of another vehicle satisfies a predetermined condition or another vehicle is identified as a cutting-in vehicle, on the basis of one of a behavior or a position of another vehicle when another vehicle traveling in an adjacent lane that is adjacent to a traveling lane of the own vehicle changes lane to the traveling lane.