Lane-Keeping Steering Control Tuned to Occupant Preferences
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Solution Overview
Problem
Conventional driving assistance technologies do not account for occupant preferences in controlling reaction force torque, making it difficult to provide appropriate lane keeping assistance.
Innovation Solution
A driving assistance device that includes a recognizer to identify the vehicle's surroundings and a steering controller to adjust steering characteristics based on occupant information, such as driving habits and preferences, to maintain the vehicle in a travel lane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional driving assistance technology is used without considering occupant preferences, then the system structure remains simple, but the appropriateness and effectiveness of lane keeping assistance deteriorates
Solution Approach 1:
The steering reaction force is made dynamically adjustable based on occupant characteristics. The system switches between multiple steering characteristics (first, second, and third characteristics with different reaction force levels) according to the recognized occupant information, making the assistance appropriate for different drivers without requiring a completely different system structure
Solution Approach 2:
The system changes the parameter of steering reaction force magnitude based on occupant preferences. By selecting from predetermined steering characteristics with different reaction force levels, the system provides personalized assistance while maintaining a relatively simple structure that only requires parameter selection rather than complete system redesign
2Adaptability or versatility
If multiple steering characteristics are provided to accommodate occupant preferences, then the appropriateness of assistance improves, but the control system complexity increases
Solution Approach 1:
Multiple steering characteristics are predetermined and stored in advance. The recognizer identifies occupant characteristics and selects the appropriate pre-prepared steering characteristic, avoiding the need for complex real-time calculations and reducing control system complexity while maintaining high adaptability
Solution Approach 2:
The system incorporates a recognizer that detects occupant characteristics and provides feedback to the steering controller. This feedback mechanism enables the system to automatically select the appropriate steering characteristic based on the identified occupant, achieving adaptability through a relatively simple closed-loop control structure
Data Source
AI summary
According to an embodiment, a driving assistance device includes a recognizer configured to recognize a surrounding situation of a vehicle and a steering controller configured to control at least steering of the vehicle so that the vehicle travels in a travel lane when the vehicle tends to deviate from the travel lane on the basis of a recognition result of the recognizer. The steering controller controls the steering of the vehicle by selecting any steering characteristic in accordance with information obtained from an occupant of the vehicle among a plurality of steering characteristics.