Lane Keeping Assistant Dynamic Mode Switching
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Solution Overview
Problem
Existing lane departure assistant systems struggle to balance between stabilizing vehicle steering when the driver is not actively holding the wheel and avoiding unnecessary interference when the driver intends to steer, leading to potential lane drifting and an uncomfortable driving experience.
Innovation Solution
A procedure and device that dynamically switch between control and regulation modes based on the driver's hand presence, using a recognition signal to adjust the steering torque profile, allowing for continuous regulation to maintain lane centering when hands-off and issuing warnings or controlling the vehicle when hands-on, with customizable control profiles to enhance driver experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If continuous regulation is applied to maintain lane centering, then vehicle stability is improved, but driver discomfort increases due to unnecessary steering interference
Solution Approach 1:
The system dynamically switches between regulation mode (continuous steering torque application) and control mode (warning signals only) based on detected driver intent. When the driver reaches for the steering wheel, the system transitions from active regulation to passive control, making the assistance system adaptive to driver needs rather than applying fixed continuous correction
Solution Approach 2:
The system uses feedback from hand detection sensors and steering torque sensors to determine driver intent and adjust the level of assistance accordingly. The feedback loop detects when the driver intends to steer and modifies the control strategy to avoid interfering with voluntary steering actions
2Reliability
If the system issues warnings when driver hands are not on the wheel, then safety is improved, but false alarms increase when driver intends to steer
Solution Approach 1:
The system detects preliminary driver actions (hand movement toward steering wheel) before actual steering input occurs. By detecting the intent to steer in advance, the system can suppress false lane departure warnings before they are issued, improving reliability by distinguishing between genuine hands-off driving and transitional hand-on movements
3Manufacturing precision
If the system applies steering torque to correct lane position, then lane keeping accuracy is improved, but driver control is reduced
Solution Approach 1:
The system dynamically adjusts the level of steering assistance based on driver intent detection. In control mode, no steering torque is applied, providing full driver control freedom. In regulation mode, steering torque is applied to maintain lane centering. The system transitions between these states based on real-time driver behavior, optimizing the balance between accuracy and control freedom
Data Source
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AI summary
The invention relates to a method for regulating and/or controlling a lateral control of a vehicle by means of a lane-keeping assistant (100). A detection signal (110) is read, which represents a hands-free and/or non-hands-free driving of the vehicle. If the detection signal (110) represents the hands-free driving, a regulating signal (112) is provided for regulating the lateral control. Conversely, if the detection signal (110) represents the non-hands-free driving, then a control signal (114) is provided for controlling the lateral control.