Vehicle Path Offset Control for Comfortable Passing Maneuvers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle control systems that adjust the traveling position of a subject vehicle based on an adjacent vehicle can cause discomfort to occupants due to rapid changes in driving path, deteriorating ride comfort.
Innovation Solution
A vehicle control apparatus that includes a microprocessor to recognize surroundings, generate a target path for offset driving to avoid other vehicles while maintaining a predetermined acceleration and deceleration in the vehicle width direction, and control actuators to execute this path, thereby minimizing noticeable lateral shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the traveling position of the subject vehicle is simply changed according to the position of the adjacent vehicle, then the vehicle can avoid collision with the adjacent vehicle, but the occupant may feel discomfort and the ride comfort may be deteriorated
Solution Approach 1:
The system changes the parameter of lateral acceleration by limiting it to a predetermined threshold value. When an adjacent vehicle is detected, instead of making abrupt position changes, the control apparatus adjusts the target traveling position by calculating and limiting the lateral acceleration parameter, ensuring it remains below the threshold that would cause occupant discomfort. This resolves the contradiction by maintaining collision avoidance while preventing harmful discomfort to occupants.
2Reliability
If the subject vehicle executes offset driving to pass by the object, then the vehicle can maintain safety distance from the object, but abrupt lateral movements may cause occupant discomfort
Solution Approach 1:
The system dynamically adjusts the offset driving path by continuously calculating and limiting lateral acceleration. Rather than executing fixed abrupt maneuvers, the control apparatus modifies the target traveling position in real-time, ensuring lateral acceleration remains within comfortable thresholds. This dynamic adjustment maintains the safety distance from objects while adapting the maneuver smoothness to prevent occupant discomfort.
Data Source
AI summary
A vehicle control apparatus includes a microprocessor configured to perform: recognizing a surrounding situation of a subject vehicle; controlling a traveling actuator so that the subject vehicle travels along a target path generated based on a recognition result; and predicting, when an object is recognized in a current lane or in an adjacent lane, whether a passing run is occur based on a relative speed with the object. The generating includes, when the passing run is predicted to occur, generating the target path so that the subject vehicle executes an offset driving in which the subject vehicle is offset in a vehicle width direction relative to the object, and so that an acceleration of the subject vehicle in the vehicle width direction while shifting to or returning from the offset driving is equal to or less than a predetermined value.