Curved-Road Lateral Position Control Tuned to Driver Steering Traits
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Solution Overview
Problem
Conventional vehicle control devices fail to execute lateral position control according to the characteristics of individual drivers on curved roads, leading to discomfort and anxiety.
Innovation Solution
A vehicle control device that learns driver characteristics on a curved road during a non-execution period and adjusts control parameters such as control threshold angles and gains based on these characteristics to match the driver's preferences, thereby reducing discomfort and anxiety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lateral position control is executed using fixed control parameters, then the control system is simple and reliable, but it cannot adapt to individual driver characteristics on curved roads, causing discomfort and anxiety
Solution Approach 1:
The system performs preliminary learning of driver characteristics during a non-execution period before actual lateral position control is needed. This allows the control parameters to be pre-adjusted according to the driver's preferences, so when control is activated, the system already has tailored parameters ready, avoiding the need for complex real-time adaptation mechanisms.
Solution Approach 2:
The control system automatically learns and adapts to driver characteristics without requiring manual configuration or intervention. The system serves itself by autonomously adjusting control parameters based on observed driver behavior patterns, eliminating the need for complex user interfaces or manual calibration procedures.
2Reliability
If control parameters are reduced to ensure safety when marking line recognition reliability is low, then control reliability improves, but responsiveness of lateral position control deteriorates
Solution Approach 1:
The control system dynamically adjusts parameters based on driving conditions and driver characteristics. By learning individual driver preferences, the system can optimize the balance between responsiveness and safety for each driver, rather than using fixed conservative parameters that limit performance for all users.
Data Source
AI summary
The vehicle control device controls the steered wheels so that the target steered angle for the vehicle to travel while maintaining a predetermined target lateral position in the travel area in which the vehicle travels matches the steered angle of the steered wheels of the vehicle. It is possible to perform lateral position control. During a non-execution period in which lateral position control is not executed, the vehicle control device learns the characteristics of the driver on a curved road, and changes the control parameters used for lateral position control based on the learned characteristics of the driver, based on an index value representing the relationship between a steering direction representing the direction in which the vehicle is traveling due to the driver's steering operation on the steering wheel and a target lateral position.