Adaptive Driver Assist Control Based on Driver Object Recognition
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Solution Overview
Problem
Conventional vehicle control systems provide uniform assist amounts and timings for driver assist, leading to driver discomfort if the assist is perceived as excessive or inadequate based on driver recognition of objects, and may fail to prevent collisions if assist is reduced.
Innovation Solution
A control device adjusts assist amounts, timings, and areas based on the driver's recognition state of objects using sensors and gaze direction detection to tailor assist strategies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the assist amount and assist timing of driver assist are made the same regardless of driver recognition state, then the system is simple to operate, but the driver may feel bothered by excessive or premature assist when recognizing the moving body
Solution Approach 1:
The patent applies dynamics by making the driver assist system adaptive rather than static. The control device dynamically adjusts assist amount and timing based on real-time detection of driver recognition state through gaze direction detection and object detection systems. This allows the assist characteristics to change flexibly according to whether the driver has recognized the moving body, resolving the contradiction between operational simplicity and driver comfort.
Solution Approach 2:
The patent changes key parameters (assist amount and assist timing) based on the driver's recognition state. When the driver recognizes the moving body, the system reduces assist amount and delays assist timing compared to when the driver does not recognize it. This parameter adaptation resolves the contradiction by tailoring assist characteristics to the specific situation, preventing driver discomfort while maintaining simple operation.
2Object-affected harmful factors
If the assist amount of driver assist is reduced or assist timing is delayed, then driver comfort is improved when driver recognizes the moving body, but collision may not be avoided if driver does not recognize the moving body
Solution Approach 1:
The patent applies local quality by providing different assist characteristics for different driver recognition states. When the driver recognizes the moving body, the system provides reduced assist amount and delayed timing to avoid bothering the driver. When the driver does not recognize it, the system provides full assist amount and earlier timing to ensure collision avoidance. This localized adaptation to different states resolves the contradiction between driver comfort and collision avoidance reliability.
Solution Approach 2:
The patent uses feedback mechanisms to detect the driver's recognition state through gaze direction detection and object detection systems. This feedback information is used to adjust assist amount and timing appropriately. The feedback loop ensures that the system can distinguish between cases where the driver has recognized the moving body and cases where it has not, thereby resolving the contradiction by providing appropriate assist levels for each state.
3Reliability
If driver assist is provided with high assist amount and early assist timing, then collision avoidance reliability is improved, but the driver may feel bothered by the assist being too large or too early
Solution Approach 1:
The patent makes the assist system dynamic by adjusting assist amount and timing based on real-time detection of driver recognition state. High assist amount and early timing are provided only when the driver has not recognized the moving body, ensuring collision avoidance reliability. When the driver has recognized it, the system dynamically reduces assist amount and delays timing to avoid annoying the driver. This dynamic adaptation resolves the contradiction between reliability and driver comfort.
Solution Approach 2:
The patent changes assist parameters (amount and timing) based on the driver's recognition state detected through gaze and object detection systems. When recognition is detected, the system reduces assist amount and delays timing compared to the non-recognition state. This parameter change strategy ensures high collision avoidance reliability when needed while preventing driver annoyance when the driver is already aware of the hazard.
Data Source
AI summary
A control device configured to perform driver assist accompanied with running control of a vehicle when a specific object around the vehicle is present in a driver assist area set around the vehicle, and change at least one of an assist amount of the driver assist, an assist timing of the driver assist, and the driver assist area based on a state of recognition by a driver of the vehicle of a specific object.