Driver Assistance Return Maneuver Re-Entry After Path Deviation

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Solution Overview

Problem

Existing driver assistance systems lack robustness and convenience in performing repeated driving maneuvers, particularly return driving maneuvers based on previously recorded outward maneuvers.

Innovation Solution

A driver assistance device that records a vehicle's driving trajectory during an outward maneuver, stores it for automated replay, and checks for deviations from the recorded path to offer automated return maneuvers only when conditions are met, ensuring reliable and efficient performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If automated return driving maneuvers are offered frequently to increase availability, then convenience is improved, but robustness decreases due to offering automated performance in unsuitable conditions

Engineering Contradiction:

Improveavailability of automated return maneuverVSAvoidrobustness of automated return maneuver

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The driver assistance device continuously monitors the actual driving trajectory and compares it with the recorded reference trajectory, using this feedback to dynamically adjust the offer status of automated return maneuvers based on current deviation status and environmental conditions

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically changes the offer status between different states (offered, suppressed, re-offered) based on real-time assessment of vehicle position, path deviation, and surrounding conditions, making the availability adaptive rather than static

Inventive Principle:

Principle #15Dynamics

2Reliability

If the system checks for path deviations continuously to maintain robustness, then reliability is improved, but device complexity increases

Engineering Contradiction:

Improverobustness of return maneuver performanceVSAvoidcomplexity of deviation checking system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs self-monitoring by automatically comparing its actual trajectory against the recorded reference trajectory without requiring external intervention, maintaining robustness through autonomous deviation detection and assessment

Inventive Principle:

Principle #25Self-service

3Reliability

If automated performance is offered only when conditions are favorable to maintain robustness, then reliability is improved, but availability decreases

Engineering Contradiction:

Improverobustness of automated return maneuverVSAvoidavailability of automated return maneuver

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system periodically re-assesses conditions and re-offers automated return maneuvers after initial suppression, using timed intervals and condition-based triggers to restore availability when favorable conditions return, rather than permanently suppressing the offer

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS12441309B2Method and driver assistance device for assistance in the performance of a return driving maneuver

Publication Date: 2025.10.14 BAYERISCHE MOTOREN WERKE AG

AI summary

A driver assistance device for assistance in performing a return driving maneuver of a motor vehicle based on a recorded outward driving maneuver is configured to detect that the motor vehicle has deviated from the driving trajectory of the return driving maneuver and is now arranged at a surrounding position in the surroundings of the driving trajectory of the return driving maneuver. The driver assistance device checks at the surrounding position whether the motor vehicle can be returned in an automated manner on the driving trajectory of the return driving maneuver proceeding from the surrounding position, and outputs an offer for an automated performance of the recorded driving maneuver at the surrounding position if it is ascertained that the motor vehicle can be returned from the surrounding position in an automated manner on the driving trajectory of the return driving maneuver.