Drive Assist Device Dynamic Steering Control Adaptation
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Solution Overview
Problem
Existing drive assist devices do not adequately consider driver operation characteristics and vehicle characteristics, leading to suboptimal and uncomfortable steering assistance across various driving conditions.
Innovation Solution
A drive assist device with a computer system that acquires driver operation ability and vehicle load information, adjusting assist control amounts to enhance driver operation, particularly by increasing assist control when driver ability decreases or vehicle load increases, and utilizing sensors and notification systems to execute appropriate assist control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If drive assist control is increased to compensate for reduced driver ability or increased vehicle load, then driver safety and comfort are improved, but driver operation degree decreases
Solution Approach 1:
The drive assist control amount is dynamically adjusted based on real-time detection of driver operation ability and vehicle operating load. The system transitions from static assist levels to dynamic adaptation, modifying assist magnitude according to detected driver state (e.g., fatigue level, reaction time) and vehicle conditions (e.g., speed, acceleration, external forces), thereby optimizing safety while preserving appropriate driver engagement.
Solution Approach 2:
The system changes the parameter of assist control amount based on detected driver ability and vehicle load parameters. By monitoring driver operation characteristics and vehicle state parameters, the system adjusts the assist control parameter to provide appropriate support levels, ensuring safety without过度 assistance that would reduce driver operation degree.
2Ease of operation
If drive assist control is increased to compensate for reduced driver ability or increased vehicle load, then driver comfort is improved, but driver operation involvement decreases
Solution Approach 1:
The system implements feedback by continuously detecting driver operation ability and vehicle operating load, then using this information to adjust assist control amounts. This closed-loop approach ensures that automation level adapts to driver needs, providing comfort through appropriate assistance while maintaining driver involvement by adjusting automation extent based on real-time driver state feedback.
3Device complexity
If drive assist does not consider driver operation characteristics and vehicle characteristics, then system complexity is reduced, but drive assist appropriateness deteriorates
Solution Approach 1:
The system segments the drive assist function into distinct detection and control components. The detection section separately identifies driver operation characteristics and vehicle characteristics, while the control section processes this segmented information to determine appropriate assist amounts. This segmentation allows the system to maintain manageable complexity while achieving high adaptability through comprehensive parameter detection and targeted control adjustments.
Data Source
AI summary
In a drive assist system, a map data acquiring section acquires at least one of a driver's operation ability and a load of a vehicle. An adjustment section determines an assist control amount as a control parameter of drive assist for the vehicle so that a degree of the driver's operation is increased according to reduction of the driver's operation ability or increasing of the load of the vehicle. An assist control amount calculation section transmits the assist control amount to a steering motor and a notification section so as to execute the drive assist for the vehicle.