Dynamic Warning Time-Point Adjustment for Hands-Off Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional driver assistance systems frequently issue warnings for hands-off situations regardless of the driving context, leading to reduced driver satisfaction and safety concerns.
Innovation Solution
A driver assistance system that adjusts the warning time-point for hands-off based on the vehicle's driving situation, using image and sensor data to determine conditions such as lane reliability, collision risk, and road curvature, allowing for delayed or expedited warnings as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If warnings are issued frequently regardless of driving situation, then driver safety is improved, but driver satisfaction deteriorates
Solution Approach 1:
The warning time-point is made dynamic and adjustable based on driving situation. The controller determines whether to delay or shorten the warning time-point according to real-time conditions such as lane reliability, collision risk, and road curvature, rather than using a fixed warning timing.
Solution Approach 2:
The warning time-point parameter is changed based on driving situation parameters. When lane reliability is high and collision risk is low, the warning time-point is delayed. When lane reliability is low or collision risk is high, the warning time-point is shortened, optimizing both safety and driver experience.
2Ease of operation
If warning time-point is delayed in safe conditions, then driver satisfaction is improved, but response time to hazards deteriorates
Solution Approach 1:
The system continuously monitors driving situation parameters (lane reliability, collision risk, road curvature) and provides feedback to adjust the warning time-point. This closed-loop control ensures that warnings are timed appropriately for each specific driving condition.
Solution Approach 2:
The warning time-point is dynamically adjusted based on real-time driving conditions. The controller can switch between delayed warning (for satisfaction) and shortened warning (for safety) based on the assessed risk level, making the system responsive to changing conditions.
3Measurement precision
If multiple driving situation parameters are monitored, then warning accuracy is improved, but system complexity increases
Solution Approach 1:
The controller performs multiple functions using a single integrated system. It monitors lane reliability, collision risk, road curvature, and other parameters, then synthesizes this information to determine the appropriate warning time-point, avoiding the need for separate dedicated systems for each function.
Data Source
AI summary
A driver assistance system of a vehicle can adjust a warning time-point for a hands-off detector configured to detect that a hand of a driver is off of a steering wheel. To this end, the driver assistance system can include an image acquisition device configured to acquire image data of an area outside of the vehicle, a sensor configured to acquire behavior data of the vehicle, a hands-off detector configured to detect that a hand of the driver is off of the steering wheel, and a controller. The controller is configured to determine a driving situation of the vehicle based on the image data and behavior data, and to determine a warning time-point for the hands-off detector based on the driving situation. The controller can further control a warning device to output a warning message for the hands-off at the determined warning time-point.