Lane-Keeping Support Timing Based on Driver Grip and Operation
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Solution Overview
Problem
Conventional lane deviation avoidance systems cause discomfort to vehicle occupants by providing unnecessary vibrations or interventions during lane changes or braking operations, failing to accurately reflect the driver's intentions.
Innovation Solution
A vehicle control system that includes sensors to detect gripping and operation information, delaying or suppressing interventions when the driver is not actively operating the vehicle, and adjusting support operations based on the type of driver input to minimize discomfort and align with the driver's intentions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lane deviation avoidance device executes lane deviation avoidance control when the probability of lane deviation is high, then the vehicle can be prevented from deviating from the lane, but the occupant feels a sense of discomfort
Solution Approach 1:
The system changes the intervention parameters (vibration intensity, timing, and type) based on the detected driving operation state. When gripping information is obtained without operation information, the system applies a different vibration pattern than when no gripping is detected, thereby reducing unnecessary interventions and occupant discomfort while maintaining lane deviation prevention effectiveness
Solution Approach 2:
The system continuously monitors gripping information and operation information from sensors, uses this feedback to determine the driver's current state and intention, and adjusts the lane deviation avoidance control accordingly. This feedback mechanism allows the system to distinguish between intentional lane changes and unintentional deviations, preventing false interventions that cause discomfort
2Object-affected harmful factors
If the support part delays the operation when gripping information is obtained without operation information, then unnecessary interventions are reduced, but the response time to actual lane deviation risks increases
Solution Approach 1:
The system dynamically adjusts the intervention timing based on the detected state. When gripping information is obtained without operation information, the system delays intervention to allow the driver time to complete their intended operation. However, this delay is dynamically adjusted based on the risk level and type of operation, ensuring that response time is optimized for each situation rather than using a fixed delay
Data Source
AI summary
A vehicle control device includes: a first obtaining part obtaining gripping information indicating a driver of a vehicle is gripping a steering wheel; a second obtaining part obtaining operation information indicating the driver is performing a driving operation; a recognition part recognizing a road marking line of a lane traveled by the vehicle; and a support part providing a support so that the vehicle does not deviate from the road marking line when a deviation probability is greater than or equal to a predetermined degree. The support part delays an operation of the support when the gripping information is obtained and the operation information is not obtained, as compared with a case where the gripping information and the operation information are not obtained, and suppresses the operation of the support for a predetermined time when the operation information is obtained regardless of whether the gripping information is obtained.