Lane-Keeping Steering Prompt Logic for Low Steering Input
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Solution Overview
Problem
Existing driving support systems may erroneously determine that a driver is not grasping the steering wheel during low steering operations, leading to unnecessary alarms and inadequate support, particularly on straight roads.
Innovation Solution
A driving support system that includes a recognizer to identify lane departure tendencies and steering thresholds, a controller to adjust vehicle steering, and an output mechanism to prompt the driver to grasp the wheel when necessary, with adaptive controls based on driver reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system monitors steering amount to detect driver attention, then driver safety can be improved, but false alarms occur when the driver is actually paying attention but performing minimal steering operations
Solution Approach 1:
The system changes the parameter being monitored from raw steering amount to steering operation frequency. By counting the number of steering operations within a predetermined time period and comparing against a threshold, the system adapts the detection parameter to better reflect actual driver attention levels, reducing false alarms during straight road driving while maintaining sensitivity to genuine distraction.
2Ease of operation
If the system outputs alarms to prompt driver attention, then driver awareness can be improved, but unnecessary alarms cause driver distraction and annoyance
Solution Approach 1:
The system implements feedback by continuously monitoring steering operation frequency and dynamically adjusting alarm output based on real-time driving conditions. When steering operations fall below the threshold indicating potential distraction, alarms are triggered; when steering operations increase showing active driver engagement, alarms are suppressed. This feedback mechanism ensures alarms are only output when genuinely needed.
3Device complexity
If the system uses simple steering amount threshold comparison, then the system complexity is reduced, but the system cannot distinguish between intentional minimal steering and driver distraction
Solution Approach 1:
The system performs preliminary action by pre-setting a threshold value for steering operation frequency that distinguishes between intentional minimal steering and driver distraction. Before making a determination about driver attention, the system accumulates steering operation data over a predetermined time period and compares the total count against the pre-established threshold, enabling accurate distinction without complex real-time analysis.
Data Source
AI summary
A driving support device includes: a recognizer configured to recognize a surrounding situation of a vehicle; a steering determiner configured to determine whether an amount of steering which is received by a steering operator receiving a steering operation is equal to or less than a threshold value; a steering controller configured to control steering when it is determined that the vehicle tends to depart from the traveling lane; and an output controller configured to cause an output to output information for prompting a driver to grasp the steering operator. The steering controller causes the steering operator to perform a predetermined operation before the information is output from the output when the steering determiner determines that the amount of steering is equal to or less than the threshold value. The output controller curbs outputting of the information when a reaction to the predetermined operation is input by the driver.