The Virtual Bumper: A Control Based Collision Avoidance System For Highway Vehicles

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Mn_DOT1998-30.pdf (9.72 MB)

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https://hdl.handle.net/11299/155120

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Title

The Virtual Bumper: A Control Based Collision Avoidance System For Highway Vehicles

Authors

Schiller, William

Donath, Max

Published Date

1997-10

Publisher

Minnesota Department of Transportation

Type

Report

Abstract

This report summarizes research on a new collision avoidance strategy, the 'virtual bumper.' The research involves development and simulation testing of the virtual bumper, a two-dimensional control strategy that provides steering, throttle, and braking actuation to maneuver a vehicle in a dynamic environment with the goal of avoiding obstacles and other vehicles. The concept applies to both normal and emergency driving conditions. Under all circumstances, the virtual bumper incorporates vehicle dynamic limits to ensure that the control commands are within safe levels. The virtual bumper will attempt to avoid a collision and will, at least, minimize the magnitude of an unavoidable collision. To test the functionality of the virtual bumper, researchers evaluated several driving scenarios. The scenarios consider both normal driving situations and emergency driving conditions. The normal driving scenarios demonstrated that the control algorithm operates the vehicle similar to the way a human would. This is important because a comfortable and predictable (i.e., intuitive) system response is required for achieving driver acceptance. The emergency scenarios demonstrated that the strategy is capable of reacting appropriately while maintaining safe acceleration/deceleration levels for the vehicle. This evaluation showed that the virtual bumper can provide safe vehicle control for a broad range of driving situations.

Keywords

Collision avoidance

Collision mitigation

Virtual bumper

Integrated steering

Throttle and braking

Radar

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Research Reports

Series/Report Number

MnDOT
1998-30

Funding information

Minnesota Department of Transportation

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Schiller, William; Donath, Max. (1997). The Virtual Bumper: A Control Based Collision Avoidance System For Highway Vehicles. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/155120.

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