Applications of force feedback steering for steer-by-wire vehicles with active steering

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Abstract/Contents

Abstract
The question of what kind of torque to create on a FFB steering system for a steer-by-wire vehicle is a broad one. As a first step, since steer-by-wire vehicles have no inherent steering feel like conventional steering vehicles, creating an artificial steering feel is important. This allows a steer-by-wire vehicle to `feel' like a conventional steering vehicle and gives the driver the same kinds of information that he is used to getting from those vehicles. Once a realistic and stable artificial steering feel can be created on steer-by-wire vehicles to mimic conventional steering vehicles, the question of active steering can be addressed. Conventional steering systems reflect the actual moments acting on the roadwheels in their steering feel. However, during an active steering intervention, the handwheel and roadwheels are no longer in sync, begging the question of what moments should be reflected in the steering feel then. This dissertation shows that using the concept of a virtual wheel to feed back the driver's intended tire moments, rather than the actual tire moments, results in a supportive steering feel. Therefore, using the techniques presented in this dissertation, a steering feel that supports scenarios with and without active steering can be implemented on steer-by-wire vehicles. The last major contribution of this work builds on the artificial steering feel created by overlaying this supportive steering feel with predictive haptic cues to aid in the obstacle avoidance task.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2015
Issuance monographic
Language English

Creators/Contributors

Associated with Balachandran, Avinash
Associated with Stanford University, Department of Mechanical Engineering.
Primary advisor Gerdes, J. Christian
Thesis advisor Gerdes, J. Christian
Thesis advisor Cutkosky, Mark R
Thesis advisor Okamura, Allison
Advisor Cutkosky, Mark R
Advisor Okamura, Allison

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Avinash Balachandran.
Note Submitted to the Department of Mechanical Engineering.
Thesis Thesis (Ph.D.)--Stanford University, 2015.
Location electronic resource

Access conditions

Copyright
© 2015 by Avinash Balachandran
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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