Methods for the at least largely automated operation of non-track-bound vehicles

The method enables non-track-bound vehicles to communicate and independently determine evasive trajectories to avoid obstacles, enhancing safety by preventing multiple collisions in automated driving scenarios.

DE102021005759B4Active Publication Date: 2026-05-28FENDT GUNTER
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Patent Information

Application Number
DE102021005759
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-20
Publication Date
2026-05-28
Estimated Expiration
2041-11-20

AI Technical Summary

Technical Problem

Existing methods for autonomous/automated driving do not provide a clear solution on how to react when a leading vehicle detects a suddenly occurring obstacle that cannot be avoided, potentially leading to multiple collisions in a convoy.

Method used

A method for non-track-bound vehicles to communicate via car-to-car communication, allowing the following vehicle to independently determine an evasive trajectory if the leading vehicle cannot avoid an obstacle, or to adopt the leading vehicle's trajectory if possible, ensuring both vehicles avoid the obstacle.

Benefits of technology

Enhances traffic safety by preventing multiple collisions through coordinated evasive maneuvers based on longitudinal and lateral dynamic parameters, optimizing automated operation in hazardous situations.

✦ Generated by Eureka AI based on patent content.

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Abstract

Method for operating a non-lane-bound convoy (10) in a largely automated manner, consisting of at least one leading vehicle (1) and at least one vehicle (2) directly following the leading vehicle (1) which is coupled to the leading vehicle (1) without physical contact, wherein the at least one vehicle (2) directly following the leading vehicle (1) follows the leading vehicle (1) by means of at least largely automatic control / regulation based on longitudinal and lateral dynamic parameters with respect to a trajectory (9, 9.1), and wherein car-to-car communication (4, 5) takes place between the leading vehicle (1) and the at least one vehicle (2) directly following the leading vehicle (1) for this automatic control / regulation, wherein further vehicles (3.1, 3.2) which do not directly follow the vehicle (1) may also be involved, wherein a) when detecting, identifying or determining a hazardous situation regarding a risk of collision with an obstacle during the trajectory, using an assistance function in the vehicle ahead (1), b) the preceding vehicle (1) sends longitudinal and lateral dynamic parameters with respect to a driving trajectory (9.2) or a following trajectory (9.1) via car-to-car communication (4, 5), characterized in that c) if the following vehicle (2) is not directly following the preceding vehicle (1), the following vehicle (2) independently determines an evasive trajectory (9.3), excluding the driving trajectory (9.2) of vehicle (1), and executes it technically by the following vehicle (2). d) if the following vehicle (2) is directly following the preceding vehicle (1), the following vehicle (2) checks whether the longitudinal and lateral dynamic parameters sent or received via car-to-car communication from the immediately preceding vehicle (1) relate to a driving trajectory (9.2) or a following trajectory (9.1). e) where, insofar as longitudinal and lateral dynamic parameters are concerned with respect to a following trajectory (9.1), the following vehicle (2) adopts the following trajectory (9.1), or executes the following trajectory (9.1) accordingly, so that the vehicle (2) immediately following the preceding vehicle (1) follows accordingly in order to be able to avoid the obstacle (7) as a column (10). f) whereas, if longitudinal and lateral dynamic parameters are involved with respect to a driving trajectory (9.2), an alternative trajectory (9.3) is independently determined in the following vehicle (2), excluding the driving trajectory (9.2) of the preceding vehicle (1), and is executed by the following vehicle (2) in terms of driving technique.
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Citation Information

Patent Citations

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