Emergency Braking Control Using Pre-Touch Intention Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing emergency braking systems for vehicles do not consider pre-touch information, leading to potential delays in braking time during urgent situations, which can result in safety accidents.
Innovation Solution
A method that utilizes a processor to determine the degree of emergency braking intention by analyzing pre-touch and post-touch information when a user interacts with a hologram brake button, allowing for earlier generation of braking force through a control operation that considers both types of information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional emergency braking systems are used that only consider post-touch information, then the system structure is simple, but the braking response time is delayed and safety is compromised
Solution Approach 1:
The system performs preliminary detection of the driver's braking intention by monitoring pre-touch information (hand movement toward the brake pedal, eye tracking, body posture) before actual contact with the brake pedal occurs. This preliminary action allows the system to prepare and initiate braking force generation earlier, reducing overall response time and improving safety without requiring complex additional hardware
2Loss of time
If pre-touch information is incorporated into the braking system, then the braking response time is reduced, but the complexity of information processing increases
Solution Approach 1:
The information processing is segmented into distinct phases: pre-touch phase (detecting hand movement, eye direction, body posture approaching the brake), touch phase (actual pedal contact detection), and post-touch phase (brake force application). Each phase has dedicated detection algorithms and response protocols, which simplifies the overall processing complexity while enabling rapid response through phased information analysis
3Volume of moving object
If a hologram brake button is implemented to maximize internal space, then vehicle interior space is optimized, but the ease of operation and detection of braking intention becomes more difficult
Solution Approach 1:
The system uses an intermediary detection layer that monitors the driver's interaction with the hologram brake button through multiple sensors (cameras, eye trackers, motion sensors) that detect hand movement toward the hologram, eye fixation on the brake button, and body posture changes. This intermediary detection mechanism translates the interaction with the virtual hologram into measurable physical signals, maintaining ease of detection while preserving the space-saving holographic interface
Data Source
AI summary
A method of emergency braking of a vehicle includes: displaying a brake button in a vehicle; determining pre-touch information on a distance before the brake button is touched by a user; determining post-touch information on a distance after the brake button is touched; and performing any one of a first brake control in which general braking is performed according to the degree of the pressing of the brake button and braking force is added from a first time point after the brake button is pressed, a second brake control in which the general braking is performed and braking force is added from a second time point that is after the first time point, and a third brake control in which the general braking is performed according to the pre-touch information and the post-touch information.