Method for calculating a predicted time until a possible collision between two motor vehicles, computer program, and driver assistance system

EP4587309A1Pending Publication Date: 2025-07-23VALEO SCHALTER & SENSOREN GMBH
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Patent Information

Application Number
EP2023772792
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-14
Filing Date
2023-09-13
Publication Date
2025-07-23

AI Technical Summary

Technical Problem

Existing driver assistance systems face complexity in calculating the time until a possible collision for various collision scenarios, making real-time calculations inefficient due to the need for numerous case distinctions and increased computational complexity.

Method used

A method that classifies collision scenarios into two types based on the absolute speed of the first motor vehicle and the relative speed between the vehicles, allowing for a generic calculation of the time until collision by determining whether the absolute speed or relative speed is sufficient, depending on the position of the object's corners relative to the travel path.

Benefits of technology

This approach simplifies the calculation of the time until collision, enabling efficient determination for numerous scenarios, including parallel and angled traffic, by reducing the need for complex case distinctions and improving real-time application feasibility.

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Abstract

The invention relates to a method for calculating a predicted time (TTC) until a possible collision between a first motor vehicle (1) and an object (2), wherein a travel envelope (6) of the first motor vehicle (1) is ascertained, and the object (2) is represented by four corners (7r, 7l, 8r, 8l). The time (TTC) until the possible collision is ascertained for a point in time in an interval during which at least one part of the object (2) is located in the travel envelope (6), namely on the basis of an absolute first speed (v1) of the first motor vehicle (1) and regardless of a second speed (v2) of the object (2) in a first situation (S1) and on the basis of a relative speed between the first motor vehicle (1) and the object (2) in a second situation (S2). It is determined whether the first situation or the second situation (S2) is occurring on the basis of the respective position of the four corners (7r, 7l, 8r, 8l) relative to the travel envelope (6).
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