Vehicle Driving State Control for Emergency Vehicle Response
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Solution Overview
Problem
Conventional vehicle control systems face challenges in rapidly recognizing and preparing for emergency vehicles, often requiring time to switch to an automated driving state, which can lead to delays in responding to emergency vehicles approaching from behind.
Innovation Solution
A vehicle control apparatus and method that employs a recognizer to identify surrounding situations and control acceleration/deceleration, switching between driving states based on the presence and type of following vehicles, vehicle-to-vehicle distance, and speed, allowing for more rapid preparation for emergency vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the host vehicle operates in a first driving state with lower automation, then the occupant maintains more control and awareness, but the response time to emergency vehicles increases
Solution Approach 1:
The system dynamically switches between first and second driving states based on real-time detection of emergency vehicles. When an emergency vehicle is detected, the system transitions from the first driving state to the second driving state, which has a higher extent of automation, enabling faster response without permanently reducing occupant control
Solution Approach 2:
The system changes the automation parameter of the driving state based on detected conditions. The driving controller adjusts the level of automation (switching between first and second driving states) according to the presence and characteristics of following vehicles, allowing optimal response time while maintaining appropriate automation levels
2Speed
If the system switches to automated driving state upon detecting emergency vehicle, then response speed improves, but false switching may occur with non-emergency vehicles
Solution Approach 1:
The system applies different recognition criteria and processing methods based on the specific characteristics of the detected vehicle. The recognizer analyzes vehicle type, position, and other local features to determine whether the detected vehicle is truly an emergency vehicle, preventing false positives while maintaining rapid response capability
Solution Approach 2:
The system uses feedback from the recognizer about following vehicle characteristics to adjust driving state transitions. The driving controller receives information about vehicle type, position, and other features, and uses this feedback to determine whether to switch to the second driving state, ensuring reliable emergency vehicle identification
3Measurement precision
If the system continuously monitors for following vehicles, then detection accuracy improves, but computational load and processing time increase
Solution Approach 1:
The monitoring process is segmented into different driving states with different levels of monitoring intensity. In the first driving state, the system performs standard monitoring, while in the second driving state (activated upon emergency vehicle detection), the system applies more intensive and accurate detection methods, balancing precision with processing complexity
Data Source
AI summary
A vehicle control apparatus includes a recognizer which recognize a surrounding situation of a host vehicle, and a driving controller which controls acceleration/deceleration of the host vehicle on the basis of a recognition result of the recognizer, wherein the driving controller causes the host vehicle to operate in any of a first driving state and a second driving state which has a higher rate of automation or fewer tasks requested with respect to an occupant than the first driving state, and changes a driving state of the host vehicle to the second driving state on the basis of at least one of presence or absence of a recognized following vehicle positioned behind the host vehicle and a following vehicle detection situation when the host vehicle is operating in the first driving state.