Driving Support Device Steering Frequency Analysis
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Solution Overview
Problem
Existing driving support systems do not tailor their assistance to individual drivers' skills, providing uniform support regardless of the driver's abilities, which can lead to ineffective assistance.
Innovation Solution
A driving support device that derives a reference trajectory based on a predetermined curve shape, analyzes the frequency components of the steering angle, and adjusts the level of support based on integrated frequency values within specific bands to match the driver's skills and style, determining the degree of support and adjusting vehicle speed and steering reactions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If driving support is provided uniformly for all drivers, then the system is simple to operate, but it cannot adapt to individual driving skills and provides ineffective assistance
Solution Approach 1:
The system performs preliminary analysis of steering angle frequency components before providing driving support. By pre-calculating the frequency spectrum of steering operations and comparing it against reference data, the system determines driver skill level in advance, enabling personalized support without increasing operational complexity during actual driving
Solution Approach 2:
The system changes the parameter of driving support intensity based on detected driver skill level. By analyzing frequency components of steering angle and comparing them to reference trajectories, the system dynamically adjusts support magnitude - providing more support to less skilled drivers and less support to skilled drivers, thereby achieving adaptability without requiring complex manual configuration
2Reliability
If driving support is increased for all drivers, then safety may be improved, but it causes discomfort to skilled drivers who do not need assistance
Solution Approach 1:
The system applies different qualities of driving support to different drivers based on their skill levels. By analyzing individual steering patterns and frequency characteristics, the system tailors the magnitude and type of support locally for each driver - providing strong support to novice drivers for safety while providing minimal or no support to skilled drivers to avoid discomfort
Solution Approach 2:
The system uses feedback from steering angle sensor data to continuously assess driver skill level and adjust support accordingly. By monitoring the frequency components of steering operations and comparing them to reference trajectories, the system receives feedback on driver performance and dynamically modifies support intensity to maintain safety while minimizing discomfort to skilled drivers
Data Source
AI summary
A driving support device includes: a trajectory deriving unit configured to derive a reference trajectory in a predetermined section corresponding to a predetermined curve shape; a frequency deriving unit configured to derive a first frequency which is determined according to a frequency component of a steering angle of a vehicle when it is assumed that the vehicle has passed through the predetermined section along the reference trajectory; a detection value acquiring unit configured to acquire a detection value of the steering angle; a component deriving unit configured to derive a frequency component of the steering angle acquired in the predetermined section when the vehicle has passed through the predetermined section; and a driving support unit configured to determine a driving support operation for a driver of the vehicle on the basis of a result of comparison between an integrated value of the frequency component in a first band equal to or greater than the first frequency and equal to or less than a second frequency and a first reference value.