Autonomous Driving Control Timing Alignment with Driver Perception
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Solution Overview
Problem
Autonomous driving systems often request driver intervention too early, causing feelings of strangeness and anxiety due to the difference in information processing and recognition speed between humans and systems, leading to decreased driver confidence.
Innovation Solution
The autonomous driving system detects forward events and estimates the visually-recognizing timing at which the driver can acknowledge these events, delaying travel control proposals or actions until this timing to align with the driver's perception, thereby reducing anxiety and increasing confidence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the autonomous driving system detects forward events and executes travel control based on its own recognition timing, then the system can respond faster and more accurately, but the driver feels senses of strangeness and anxiety due to the mismatch with driver's perception timing
Solution Approach 1:
The patent introduces a timing adjustment mechanism that acts as an intermediary between the autonomous driving system's early detection and the driver's later recognition. The system estimates the driver's visual recognition timing and delays the travel control execution until this estimated timing is reached, thereby mediating the conflict between fast system response and driver perception synchronization
Solution Approach 2:
The system dynamically adjusts the travel control execution timing based on estimated driver recognition timing rather than using fixed system detection timing. This dynamic adjustment allows the system to adapt its response timing to match the driver's perception pace, reducing the mismatch that causes driver anxiety
2Productivity
If the autonomous driving system makes travel control proposals earlier than driver recognition, then the system可以提高 productivity and response efficiency, but driver confidence decreases due to perceived inappropriateness
Solution Approach 1:
The system performs preliminary detection of forward events in advance but delays the execution of travel control proposals until the estimated driver visual recognition timing. This allows the system to prepare response strategies early while timing the actual proposal execution to match driver perception, maintaining both efficiency and confidence
Solution Approach 2:
The system changes the timing parameter of travel control execution from system-detection-based to driver-recognition-based. By adjusting this critical parameter to align with driver perception timing, the system maintains high response efficiency while improving driver confidence and perceived appropriateness
Data Source
AI summary
An autonomous driving system has: an information acquisition device configured to acquire driving environment information indicating driving environment for a vehicle; and an autonomous driving control device configured to control autonomous driving of the vehicle based on the driving environment information. A forward event is an event that exists in front of the vehicle and causes the autonomous driving control device to change a travel state of the vehicle. The autonomous driving control device performs: event detection processing that detects the forward event based on the driving environment information; visually-recognizing timing estimation processing that estimates a visually-recognizing timing at which a driver of the vehicle is able to visually-recognize the forward event; and travel control processing that proposes or executes, at or after the visually-recognizing timing, travel control that changes the travel state according to the forward event.