Vehicle Safety Control for Safer Collision Point Displacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle safety systems face challenges in predicting and optimizing the collision point during imminent collisions, particularly in side impact scenarios, which can lead to unfavorable impacts on the passenger compartment, increasing the risk of serious injuries.
Innovation Solution
A method and apparatus that utilize environment and trip data to predict the collision point and adjust the vehicle's trajectory or braking to displace the impact point to a safer region, using evaluation factors to generate control signals for the safety device, such as autonomous emergency braking or evasive maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If autonomous emergency braking is activated to reduce collision severity, then the collision point may be displaced into the passenger compartment, but if not activated, then the collision occurs at the originally predicted point which may be more favorable
Solution Approach 1:
The system performs preliminary calculation of the expected impingement point before collision occurs, and uses this information to decide whether to activate the safety device. By predicting the collision point in advance and evaluating it against safety criteria, the system can prevent unfavorable displacement of the impingement point into the passenger compartment while still activating braking when beneficial
Solution Approach 2:
The system continuously monitors the predicted impingement point and compares it against safety thresholds. Based on this feedback, it dynamically decides whether to activate or suppress the safety device intervention. The control signal is generated depending on the evaluation result, creating a closed-loop system that adapts to the specific collision scenario
2Manufacturing precision
If the safety device intervenes to displace the impingement point, then the collision region can be optimized, but the intervention parameters must be precisely controlled to avoid worsening the accident sequence
Solution Approach 1:
The system calculates optimal intervention parameters (braking force, steering angle) based on the predicted impingement point and desired displacement target. By dynamically adjusting these parameters, the system achieves precise control over the impingement point displacement while maintaining manageable system complexity through standardized calculation methodologies
Data Source
AI summary
A method for controlling a safety device of a vehicle. The safety device reacts to an imminent collision of the vehicle with a collision object by an intervention in a longitudinal and/or lateral guidance of the vehicle. Environment data and trip data regarding the collision object and the vehicle, and intervention data regarding a planned intervention of the safety device, are read in. A first expected impingement point of the collision object on the vehicle is ascertained using the environment data and the trip data, and a second expected impingement point is ascertained using the environment data, the trip data, and the intervention data. A location of the first expected impingement point and of a location of the second expected impingement point relative to subregions referred to the vehicle are evaluated, using reference data. A control signal for the safety device is generated depending on a result of the evaluation.