Driver Assistance Steering Input Adjustment for Intended Maneuvers
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Solution Overview
Problem
Advanced driver assistance systems often interfere with the driver's intended maneuvers, particularly during lane changes or overtaking, as they react to deviations from the central lane position without considering the driver's intentions, leading to annoyance and potential safety issues.
Innovation Solution
A driver assistance method that uses environmental and vehicle-internal sensors to identify the driver's intended maneuvers, calculates an optimal driving trajectory, and adjusts steering inputs accordingly to support the driver's intentions without independent control, ensuring flexibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver assistance system intervenes to correct deviations from the central lane position, then lane keeping safety is improved, but the driver's intended maneuvers (lane changes, overtaking) are hindered
Solution Approach 1:
The system dynamically adjusts its intervention behavior based on the detected driving situation. By continuously monitoring environmental data and driver behavior patterns, the system switches between different operational modes: active correction when lane departure is unintended, and passive support when lane changes or overtaking are intended. This dynamic adaptation resolves the contradiction by making the system's response flexible rather than fixed.
Solution Approach 2:
The system uses feedback from environmental sensors and driver behavior analysis to determine whether intervention is appropriate. By analyzing the driver's steering patterns, gaze direction, and contextual driving conditions, the system receives feedback about the driver's intentions and adjusts its correction strength accordingly. This feedback mechanism allows the system to maintain safety while avoiding unnecessary interference with intended maneuvers.
2Reliability
If the system continuously monitors and corrects steering input to maintain lane position, then driving safety is improved, but driver disturbance and annoyance increase
Solution Approach 1:
The system applies partial correction only when necessary, rather than continuous full correction. By detecting the driver's intended maneuvers and contextual situations, the system selectively intervenes only in cases where correction is actually needed, leaving the driver's natural steering behavior undisturbed in appropriate situations. This partial action approach maintains safety while minimizing driver disturbance.
3Reliability
If the driver assistance system automatically executes maneuvers to avoid hazards, then collision avoidance is improved, but driver control and situational awareness are reduced
Solution Approach 1:
The system prepares for potential hazards by continuously analyzing environmental data and predicting possible risks, but takes preliminary action only when hazards are confirmed. Rather than automatically executing maneuvers at the first sign of potential danger, the system first assesses the situation, determines the appropriate response, and then intervenes with targeted corrections. This approach maintains driver control while providing collision avoidance when truly necessary.
Data Source
Figure 1
AI summary
The invention relates to a method for operating a driver assistance device (2) of a motor vehicle (1), comprising: a) detecting the environment (4) of the motor vehicle (1) by means of an environment sensor device (3) of the driver assistance device (2); b) providing environmental information representing the detected environment (4) to a computing unit (7) of the driver assistance device (2); c) identifying one or more possible driving maneuvers (8a, 8b, 8c) for the motor vehicle (1) based on the environmental information by means of the computing unit (7); d) detecting the behavior of a driver (6) of the motor vehicle (1) by means of an in-vehicle sensor device (5); e) providing behavior information representing the behavior of the driver (6) to the computing unit (7);a) recognizing whether any of the identified driving maneuvers (8a, 8b, 8c) is an intended driving maneuver (8a) by the driver (6), based on the behavioral information provided by the computing unit (7); and, if an identified driving maneuver (8a, 8b, 8c) is an intended driving maneuver (8a), g) calculating a target driving trajectory (9) of the motor vehicle (1) for the intended driving maneuver (8a) by the computing unit (7); h) detecting a steering input from the driver (6) and checking whether the steering input needs to be increased or decreased to guide the motor vehicle (1) along the target driving trajectory (9); and i) increasing or decreasing the steering input depending on a result of the check, in order to assist the driver (6) in maintaining a lane without hindering a desired maneuver.