This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Solution for a Fail-Operational Control of Steer-by-Wire System without Mechanical Backup Connection
Technical Paper
2021-01-0931
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
The past five years have seen significant research into autonomous vehicles that employ a by-wire steering rack actuator and no steering wheel. There is a clear synergy between these advancements and the parallel development of complete Steer-by-Wire systems for human-operated passenger vehicle applications. Steer-by-Wire architectures presented thus far in the literature require multiple layers of electrical and/or mechanical redundancy to achieve the safety goals. Unfortunately, this level of redundancy makes it difficult to simultaneously achieve three key manufacturer imperatives: safety, reliability, and cost. Hindered by these challenges, as of 2020 only one production car platform employs a Steer-by-Wire system.
This paper presents a Steer-by-Wire architectural solution featuring fail-operational steering control architected with the objective of achieving all system safety, reliability, and cost goals. This architecture does not require a mechanical backup connection or a fail-operational steering column emulator design. The proposed Steer-by-Wire system is comprised of a fail-safe steering column emulator, fail-operational steering rack actuator, steering column angle sensor module and a fail-operational steering angle control signal. This solution provides a cost effective implementation that maintains safe and controllable operation in the presence of a single electrical fault of the steering column emulator or the steering rack actuator.
Recommended Content
Authors
Topic
Citation
Almasri, H., Siskoy, B., Kloess, S., Badiru, I. et al., "A Solution for a Fail-Operational Control of Steer-by-Wire System without Mechanical Backup Connection," SAE Technical Paper 2021-01-0931, 2021, https://doi.org/10.4271/2021-01-0931.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Brian , J.A. and Bing , Z.
- Kiyotaka , S. , Hitoshi , O. , and Kazuo , H.
- Juhn-Sub , W.
- Kazuo , H. , Noriki , K. , Kiyotaka , S. , and Tetsuya , O.
- Naotaka , C. , Taku , S. , Noriki , K. , and Takaaki , E.
- Noriki , K. and Takaaki , E.
- Ryouhei , H. , Kenji , H. , and Shingo , M.
- Taku , S.
- Hirotaka , K. , Kuniyoshi , T. , Yasushi , U. , and Yuuki , O.
- Toshikatsu , K.
- Shogo , M.
- Toshikatsu , K.
- Yoshihide , S.
- Manfred , B. and Nicolai , T.
- Kevin , B. and William , S.
- Akiyoshi , N. , Koichi , O. , Akio , N. , and Yingjie , Z.
- Anthony , D.
- Toshikatsu , K.
- Manfred , B. and Nicolai , T.
- Yoshihide , S.
- Brian , N.S. , Scott , R.K. , Hossam , A. , Silviu , A.P. , and Ibrahim , A.B. Oct 15, 2019
- Cesiel , D. , Gaunt , M.C. , and Daugherty , B. Development of a Steer-by-Wire System for the GM Sequel SAE Technical Paper 2006-01-1173 https://doi.org/10.4271/2006-01-1173
- Verschuren , R.M.A.F. and Duringhof , H.M. Design of a Steer-by-Wire Prototype SAE Technical Paper 2006-01-1497 https://doi.org/10.4271/2006-01-1497
- Norman , K. Objective Evaluation of On-Center Handling Performance SAE Technical Paper 840069 1984 https://doi.org/10.4271/840069
- Badiru , I. Customer Focus in EPS Steering Feel Development SAE Int. J. Passeng. Cars - Mech. Syst 7 3 1009 1015 2014 https://doi.org/10.4271/2014-01-0148
- Shimizu , Y. , Kawai , T. , and Yuzuriha , J. Improvement in Driver-Vehicle System Performance by Varying Steering Gain with Vehicle Speed and Steering Angle: VGS (Variable Gear-Ratio Steering System) SAE Technical Paper 1999-01-0395 1999 https://doi.org/10.4271/1999-01-0395
- Shin , K. and Bae , H. Real-Time Estimation of Wheel Imbalances for Chassis Prognosis SAE Technical Paper 2010-01-0245 2010 https://doi.org/10.4271/2010-01-0245
- Shridhare , M. , Sonar , S. , Ranawat , M. , and Jindal , A. Estimation and Reduction of Lateral Deviation (Brake Pulling) of a Vehicle due to Difference in Left and Right Wheel Brake Force SAE Technical Paper 2017-01-2505 2017 https://doi.org/10.4271/2017-01-2505
- Colwell , K.C. Jan 2013
- Heitzer , D. and Seewald , A. Development of a Fault Tolerant Steer-by-Wire Steering System SAE Technical Paper 2004-21-0046 2004
- Koo , T. , Hong , S. , Kim , D. , Tae , H. et al. A Study on the Controllability of the Vehicle Steer-by-Wire Systems SAE Technical Paper 2020-01-0646 2020 https://doi.org/10.4271/2020-01-0646