Automated Lane Change Area Selection in Complex Traffic

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Solution Overview

Problem

Current automated lane changing systems in vehicles have a low success rate in complex scenarios, necessitating an improved solution for intelligent lane changing.

Innovation Solution

An automated lane changing method and device that calculates an expected lane changing point and selects an optimal area based on obstacle information, safety, and efficiency, using a vehicle sensor to divide the target lane into different areas for lane changing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If automated lane changing assistance function is implemented, then lane changing operation is automated, but success rate is low in complex scenarios

Engineering Contradiction:

Improvelane changing automationVSAvoidlane changing success rate

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The target lane is divided into multiple candidate areas based on obstacle information, with each area representing a potential lane changing target. This segmentation allows the system to evaluate different regions independently and select the most suitable one, improving success rate in complex scenarios while maintaining automation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system calculates expected lane changing points for each candidate area based on obstacle information and evaluates multiple parameters (safety, efficiency, comfort) to select the optimal area. This parameter-based evaluation enables adaptive selection of lane changing targets, resolving the contradiction between automation and reliability.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If multiple candidate areas are evaluated for lane changing, then lane changing success rate improves, but calculation complexity increases

Engineering Contradiction:

Improvelane changing success rateVSAvoidcalculation complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system pre-divides the target lane into multiple candidate areas based on obstacle information before selecting the final lane changing target. This preliminary segmentation simplifies the subsequent evaluation process by providing predefined options, reducing calculation complexity while maintaining high success rate through comprehensive evaluation.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If optimal lane changing point is calculated based on obstacle information, then lane changing safety improves, but processing time increases

Engineering Contradiction:

Improvelane changing safetyVSAvoidprocessing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system calculates expected lane changing points locally for each candidate area based on obstacle information specific to that area. This localized calculation approach ensures safety by considering area-specific conditions while reducing overall processing time compared to evaluating the entire lane uniformly.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12441317B2Automated lane changing device and method for vehicle

Publication Date: 2025.10.14 NIO TECH ANHUI CO LTD

AI summary

The disclosure relates to an automated lane changing method for a vehicle. The method includes: obtaining a plurality of areas in a target lane; calculating, based on information about an obstacle included in each area in the plurality of areas, an expected lane changing point for the area; and selecting, based on the expected lane changing point and an availability check result for the plurality of areas, a first area in the plurality of areas as a target area for final lane changing. The disclosure further relates to an automated lane changing device for a vehicle, a computer storage medium, and a vehicle.