Vehicle Control Device Optimizing Driver Readiness Time
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Solution Overview
Problem
Current vehicle control systems lack an efficient method to optimize the switching between autonomous and manual driving modes, particularly in ensuring the driver is ready to take control before reaching a manual driving mode transition point, leading to potential safety risks due to timing mismatches between vehicle arrival and driver readiness.
Innovation Solution
A vehicle control device equipped with a camera, sensing unit, and processor that determines the time required for the vehicle to reach a manual driving mode point and the driver's readiness time, outputting notification to shorten the driver's preparation time when necessary, and adjusting vehicle speed or mode switching based on these comparisons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the vehicle switches to manual driving mode at the predetermined point, then the autonomous driving control can be completed on time, but the driver may not be ready to take control, creating a safety risk
Solution Approach 1:
The system performs preliminary actions by notifying the driver in advance before the mode switching point is reached. The notification is sent at a calculated time that accounts for the driver's response characteristics, ensuring the driver is mentally prepared to take control before the actual switching occurs at the predetermined point.
Solution Approach 2:
The notification timing is dynamically adjusted based on the driver's individual response characteristics. The system measures the driver's response time to notifications and uses this information to calculate the optimal notification timing, making the system adaptive to different drivers rather than using a fixed notification interval.
2Reliability
If the driver's response time is measured and notification timing is adjusted, then driver readiness is improved, but the system complexity increases due to additional sensing and calculation requirements
Solution Approach 1:
The system uses the driver's own response to notifications as the measurement input. When the notification unit sends a notification and the driver responds (e.g., by pressing a button or making a sound), the system automatically measures the response time and uses it to calculate subsequent notification timings, eliminating the need for separate measurement devices or complex assessment protocols.
Solution Approach 2:
The system implements a feedback loop where the driver's response time to notifications is measured and fed back into the calculation of future notification timings. This closed-loop approach continuously optimizes the notification timing based on actual driver performance, improving readiness while keeping the system adaptable to individual drivers.
3Reliability
If multiple notifications are sent to ensure driver readiness, then the driver preparation time is sufficient, but the loss of time for the switching process increases
Solution Approach 1:
The system changes the timing parameter of notifications based on measured driver response characteristics. Instead of sending notifications at fixed intervals or a fixed number of times, the system calculates the optimal notification timing using the driver's measured response time, thereby minimizing the total notification duration while ensuring the driver is adequately prepared.
Data Source
AI summary
The present invention relates to a vehicle control device provided in a vehicle and a method of controlling the vehicle. A vehicle control device according to an embodiment of the present invention includes a sensing unit configured to sense a driver's state, and a processor configured to decide a first time required for a vehicle currently traveling in an autonomous driving mode to reach a point where the vehicle is to be switched to a manual driving mode, and decide a second time required for the driver to be ready to perform manual driving based on the driver's state, wherein the processor outputs notification information such that the second time is shortened when the second time is longer than the first time.