Vehicle Collision Warning Trajectory Prediction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing parking aid systems fail to provide clear collision warnings, as they often sound continuous alarms when not necessary, do not detect lateral obstacles, and require driver interpretation of camera images to assess collision risks.
Innovation Solution
A method and apparatus that store vehicle geometry data, use sensors to detect obstacles, predict vehicle trajectories based on steering angle and gear selection, and provide visual and audible warnings only when a collision is likely, using proximity sensors and cameras to display predicted collision zones on a digital screen or head-up display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous audible alarm is sounded when vehicle is close to detected object, then driver is warned of potential collision, but driver cannot determine whether actual collision is imminent and becomes distracted
Solution Approach 1:
The system dynamically adjusts the warning mode based on real-time trajectory analysis. When collision is certain, continuous audible alarm is provided. When collision can be avoided by steering adjustment, visual indication is provided instead. This dynamic adaptation resolves the contradiction by making the warning system both reliable and minimally distracting.
Solution Approach 2:
The system provides feedback to the driver about the predicted trajectory and collision risk. The visual indication system shows the driver where the vehicle will travel and whether adjustment is needed, enabling the driver to make informed decisions. This feedback loop maintains reliability while reducing unnecessary distraction.
2Reliability
If traditional parking aid systems sound continuous alarm when object is near, then driver is warned, but warning is provided even when no collision risk exists (e.g., when simply passing objects)
Solution Approach 1:
The system performs preliminary trajectory prediction based on current steering angle and vehicle geometry before issuing a warning. By calculating the predicted path in advance and comparing it with obstacle positions, the system determines whether a collision risk actually exists. This preliminary analysis enables accurate warning selection while managing complexity through efficient geometric calculations.
3Loss of information
If camera display system is used to show rear view, then driver can view obstacles, but driver must interpret the image to assess collision risk
Solution Approach 1:
The system introduces an intermediary processing layer that automatically calculates and presents collision risk information to the driver. Instead of requiring the driver to interpret raw camera images, the system processes the visual data and presents clear indications of collision risk and required steering adjustments. This intermediary layer reduces information loss while significantly improving ease of operation.
4Ease of manufacture
If proximity sensors are mounted only in front and rear bumpers, then system is simple to manufacture, but lateral obstacles cannot be detected
Solution Approach 1:
The system uses the existing front and rear proximity sensors for multiple functions: detecting both forward/rearward obstacles and, through trajectory prediction, detecting potential lateral collision risks. By making the trajectory prediction capability universal, the system achieves lateral collision detection without adding physical sensors to the sides, maintaining ease of manufacture while improving reliability.
Data Source
AI summary
A method and apparatus for warning a driver of a motor vehicle of a predicted collision with a stationary object. A proximity sensor is used to determine a position of an obstacle relative to the vehicle. A steering angle of the vehicle is determined and used to predict a trajectory of the vehicle. A collision zone on the vehicle is identified based on the vehicle trajectory, the collision zone being that spot or location on the vehicle which is predicted to contact the obstacle. A visual display within the vehicle (on the control panel, for example) provides a visual indication to the driver of the position of the collision zone on the vehicle and a predicted trajectory of the collision zone as the vehicle moves in accordance with the steering angle.