Steering Assist Apparatus Path Setting for Oncoming Lane Avoidance
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Solution Overview
Problem
Existing steering assist apparatuses for parked vehicles may inadvertently cause the vehicle to enter oncoming lanes or obstruct following vehicles, leading to potential collisions or parking failures due to inadequate path setting in the presence of adjacent vehicles.
Innovation Solution
A steering assist apparatus that includes a peripheral state acquiring device, a path setting module, and a steering assist device, which sets movement paths to avoid oncoming lanes by maintaining the vehicle within its own lane and adjusts paths to prevent following vehicles from entering the parking space by maintaining a safe distance and using entry prevention areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the switching position is set far from the target position to enable parking maneuver, then the vehicle can complete parking operation, but the vehicle body may enter the oncoming lane and obstruct oncoming traffic
Solution Approach 1:
The patent applies local quality by making the path setting adaptive to different local conditions. The control device detects whether an oncoming lane is present and adjusts the movement path accordingly - when no oncoming lane is detected, the vehicle can use the full parking space including areas near the center line, but when an oncoming lane is detected, the path is constrained to stay within the own lane. This localized adaptation resolves the contradiction by allowing full parking maneuverability in safe conditions while preventing obstruction when oncoming traffic is present.
2Ease of operation
If the switching position is set far from the target position to enable parking maneuver, then the vehicle can complete parking operation, but a following vehicle may enter the space between the vehicle and target position
Solution Approach 1:
The patent applies preliminary action by detecting the presence of a following vehicle before completing the parking maneuver and adjusting the movement path in advance. When a following vehicle is detected within a predetermined distance, the control device modifies the movement path to maintain a smaller distance between the vehicle body and the parking-possible region throughout the maneuver, including during the switching position phase. This preliminary detection and adaptive path adjustment prevents the following vehicle from entering the space between the parking vehicle and target position, resolving the contradiction while maintaining parking capability.
3Reliability
If the movement path allows the vehicle to reach the target position, then parking is completed, but the vehicle may obstruct oncoming lane or allow following vehicle to enter unsafe zone
Solution Approach 1:
The patent applies dynamics by making the movement path dynamically adjustable based on real-time detection of surrounding conditions. The control device continuously monitors for the presence of oncoming lanes and following vehicles, and modifies the movement path parameters accordingly. When an oncoming lane is detected, the path is constrained to prevent crossing the center line; when a following vehicle is detected, the path maintains a safer distance from the parking-possible region. This dynamic adaptation ensures reliable parking completion while eliminating collision risks with adjacent vehicles.
Data Source
AI summary
A steering assist apparatus is configured to, when performing a steering assist control for parking, perform one or both of the following processes (a) and (b): (a) a first setting process for setting a movement path when an oncoming lane is present, the first setting process being a process for setting the movement path in such a manner that a vehicle body does not enter the oncoming lane side from an own lane across a center line or a predetermined line obtained by translating the center line; and (b) a second setting process for setting the movement path when a following vehicle is present, the second setting process being a process for setting the movement path in such a manner that a distance between the vehicle body and a parking-possible region is less than a predetermined threshold.