Driver Assistance Lane Change Timing Based on User Acceptance
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Solution Overview
Problem
Existing driver assistance systems for lane changes on multi-lane roads do not adequately adjust to the behavior and preferences of the driver, leading to potential user dissatisfaction and reduced functionality when speed adjustments are not accepted.
Innovation Solution
A method that adjusts the starting time for speed reduction and gap search based on user acceptance, allowing drivers to override speed adjustments and continuously adapt the driver assistance system to their behavior, including considerations of driving style and traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the driver assistance system adjusts the speed of the vehicle starting from an original first starting time before the exit is reached, then the lane change maneuver can be prepared in advance, but the user may not accept the speed adjustment and override the longitudinal control
Solution Approach 1:
The system monitors whether the user accepts or overrides the speed adjustment and uses this feedback to dynamically adjust the first starting time for subsequent maneuvers. If the user frequently overrides the system, the starting time is shifted earlier to provide more notice. This creates a closed-loop feedback mechanism that adapts to individual user preferences while maintaining safe lane change preparation timing.
Solution Approach 2:
The first starting time is not fixed but dynamically adjustable based on user behavior patterns. The system transitions from a static, predetermined starting time to a dynamic parameter that adapts in real-time based on user acceptance or override actions. This allows the system to optimize between early preparation (reducing time loss) and user comfort (ease of operation).
2Adaptability or versatility
If the driver assistance system repeatedly offers speed adjustment to the driver, then the user has multiple opportunities to accept, but the function may be aborted if the user does not accept
Solution Approach 1:
The system performs preliminary actions by offering speed adjustment multiple times before the exit is reached, giving the user several opportunities to accept. However, it also establishes a fallback mechanism where, if the user does not accept after multiple offers, the system automatically proceeds with the lane change maneuver using the originally planned trajectory, ensuring the maneuver is completed rather than aborted.
Solution Approach 2:
The system monitors user responses and autonomously adjusts its behavior - either proceeding with automatic longitudinal control if the user accepts, or switching to manual control mode if the user overrides. This self-adjusting capability allows the system to adapt to user preferences without requiring explicit reconfiguration, maintaining both flexibility and reliability.
Data Source
AI summary
A method for maneuvering a vehicle on a multi-lane road has the steps of: receiving a driving command for maneuvering the vehicle from a second lane of the road, across a first lane of the road, to an exit of the road; preparing for a lane change maneuver from the second lane to the first lane, wherein, in order to prepare for the lane change maneuver, a speed of the vehicle is adjusted starting from an original first starting time before the exit is reached by the vehicle; checking whether the adjustment of the speed in order to prepare for the lane change maneuver of the vehicle starting from the first starting time is accepted by a user of the vehicle; and adjusting the first starting time for subsequent maneuvering of the vehicle on a multi-lane road on the basis of the check.