Vehicle Deviation Avoidance Apparatus With Boundary-Adjusted Command Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle path deviation avoidance systems fail to accurately determine the position to move within an adjacent lane when changing lanes, potentially leading to collisions with obstacles or deviations outside the travel boundary, especially when encountering pedestrians or objects on the road shoulder.
Innovation Solution
A deviation avoidance apparatus comprising a boundary detection section, deviation prediction section, object detection section, and command value adjustment section that predicts and controls the vehicle's movement to stay within the travel path by adjusting the command values for the travel control unit, ensuring the maximum movement position is inside the path boundaries, especially when encountering pedestrians or objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the obstacle avoidance process allows the own vehicle to move into the adjacent lane to avoid the obstacle, then the vehicle can avoid the obstacle, but the vehicle may enter the adjacent lane where the obstacle exists or deviate outside the travel boundary
Solution Approach 1:
The command value adjustment section adjusts the command value locally based on the detected object's position and type. When an object is detected on or outside the boundary, the command value is modified to restrict the maximum movement position to inside the traveling path, creating a localized safety constraint that prevents harmful deviations while allowing normal obstacle avoidance elsewhere
Solution Approach 2:
The system changes the command value parameter dynamically based on object detection results. The command value that determines the maximum movement position during lane change is adjusted from allowing entry into the adjacent lane to restricting movement to inside the traveling path when objects are detected on or outside the boundary
2Reliability
If the own vehicle is allowed to deviate to the outside of the boundary to avoid the obstacle, then the vehicle can avoid the obstacle, but the pedestrian walking on the boundary or outside the boundary may have a fear
Solution Approach 1:
The system applies a localized constraint near the boundary where pedestrians may be present. The command value adjustment creates a specific restriction zone inside the traveling path when objects are detected on or outside the boundary, preventing the vehicle from deviating into areas where pedestrians may be walking
Solution Approach 2:
The command value adjustment section acts as an intermediary between the obstacle avoidance function and pedestrian safety. It mediates the vehicle's movement by adjusting the command value to ensure the maximum movement position remains inside the traveling path, thereby protecting pedestrians while still allowing obstacle avoidance
Data Source
AI summary
A deviation avoidance apparatus includes: a boundary detection section that detects boundaries defining both edges in a width direction of a traveling path on which an own vehicle travels; a deviation prediction section that predicts that the own vehicle will deviate from the traveling path based on a travelling condition of the own vehicle that travels on the traveling path defined by the boundaries detected by the boundary detection section; an object detection section that detects an object that exists on one of the boundaries, the one of the boundaries being on a side where the own vehicle deviates from the traveling path, or outside of the one of the boundaries; a deviation avoidance section that commands, when the deviation prediction section predicts that the own vehicle will deviate from the traveling path, a travel control unit to have the own vehicle avoid deviating from the traveling path, the travel control unit controlling the travelling condition; and a command value adjustment section that adjusts, when the object detection section detects the object, a command value to be output from the deviation avoidance section to the travel control unit such that a maximum movement position in a case where the own vehicle moves to the side where the own vehicle deviates from the traveling path is on an inside of the traveling path with respect to the one of the boundaries on the side where the own vehicle deviates from the traveling path.