ADAS Emergency Stop Control for Permitted Roadside Stopping
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Solution Overview
Problem
Current Advanced Driver Assistance Systems (ADAS) do not include features that automatically park or stop a vehicle in a suitable space during emergency situations, leaving a gap in advanced driving assistance capabilities.
Innovation Solution
A driving assistance device equipped with sensors and a processor that identifies drivable areas based on sensor output, determining whether parking or stopping is permitted or prohibited, and controls the vehicle to stop in a suitable area, including lane changes and providing warning notifications as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current ADAS technologies are used without emergency stop function, then the system complexity remains low, but the safety and emergency response capability is insufficient
Solution Approach 1:
The driving assistance device integrates multiple functions including emergency stop, lane keeping assist, and collision warning into a single system. The processor executes various driving assistance functions based on sensor inputs, allowing one device to perform multiple safety-critical tasks rather than requiring separate systems for each function.
Solution Approach 2:
The system performs preliminary identification of drivable areas and permitted stopping areas using sensors before an emergency stop is triggered. When emergency stop is activated, the vehicle can immediately stop in a safe location because the system has already mapped the environment and identified suitable stopping zones in advance.
2Reliability
If automatic emergency stop function is added to identify drivable areas and determine permitted stopping zones, then the safety and emergency response capability is improved, but the device complexity increases
Solution Approach 1:
The system divides the environment into distinct zones: drivable areas, permitted stopping areas, and prohibited stopping areas. The processor segments the spatial information based on sensor data and traffic regulation information, evaluating each zone independently to determine the safest stopping location during an emergency.
Solution Approach 2:
The processor acts as an intermediary that integrates sensor data from multiple sources and combines it with stored traffic regulation information. This intermediary processing layer synthesizes the raw sensor inputs and regulatory data to make intelligent decisions about where the vehicle should stop, rather than requiring direct complex connections between all sensors and control systems.
3Measurement precision
If the system determines whether the vehicle is in an outmost lane before identifying drivable area, then the accuracy of emergency stop location is improved, but the response time increases
Solution Approach 1:
The system performs preliminary determination of whether the vehicle is in an outmost lane and pre-identifies potential drivable areas and permitted stopping zones while the vehicle is normally operating. This advance preparation ensures that when an emergency stop is triggered, the system already has processed spatial information ready, minimizing the additional time needed for decision-making.
Data Source
AI summary
Disclosed herein is a driving assistance device including one or more sensors included in a vehicle, and having a sensing field of view facing outward from the vehicle; and a processor operably connected to the one or more sensors, wherein the processor is configured to: identify a drivable area of the vehicle based on one or more output signals of the one or more sensors in response to execution of an emergency stop function of the vehicle; determine, based on the one or more output signals of the one or more sensors, whether the identified drivable area of the vehicle corresponds to a first area where at least one of parking or stopping of the vehicle is permitted or a second area where the parking and the stopping of the vehicle are prohibited; and output a signal to control the vehicle to stop in the identified drivable area corresponding to the first area where at least one of the parking or the stopping of the vehicle is permitted in response to determination that the identified drivable area of the vehicle corresponds to the first area.