NDLI: Real-time estimation of rollover index for tripped rollovers with a novel unknown inputs nonlinear observer

Content Provider	IEEE Xplore Digital Library
Author	Phanomchoeng, G. Rajamani, R.
Copyright Year	2012
Description	Author affiliation: Univ. of Minnesota, Minneapolis, MN, USA (Phanomchoeng, G.; Rajamani, R.)
Abstract	In rollover prevention systems, a traditional rollover index can detect only un-tripped rollovers that happen due to high lateral acceleration from sharp turns. It fails to detect tripped rollovers that happen due to tripping from external inputs such as forces when a vehicle strikes a curb or a road bump. In order to develop a new rollover index that can detect both tripped and un-tripped rollovers, state estimation in the presence of unknown disturbance inputs is required. Therefore, this paper develops a methodology for estimation of unknown inputs in a class of nonlinear systems. The methodology is based on nonlinear observer design and dynamic model inversion to compute the unknown inputs from output measurements. The observer design utilizes the mean value theorem to express the nonlinear estimation error dynamics as a convex combination of known matrices with time varying coefficients. The observer gains are then obtained by solving linear matrix inequalities (LMIs). The developed approach can enable observer design for a large class of bounded Jacobian nonlinear systems with unknown inputs. The developed nonlinear observer is then applied for rollover index estimation. The developed rollover index is evaluated through simulations with an industry standard software, CARSIM, and with experimental tests on a $1/8^{th}$ scaled vehicle. The simulation and experimental results show that the developed nonlinear observer can reliably estimate vehicle states, unknown normal tire forces, and rollover index for predicting both un-tripped and tripped rollovers.
Sponsorship	IEEE Control Syst. Soc.
Starting Page	2090
Ending Page	2095
File Size	1155670
Page Count	6
File Format	PDF
ISBN	9781457710957
ISSN	07431619
e-ISBN	9781457710964
e-ISBN	9781467321020
DOI	10.1109/ACC.2012.6314784
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Vehicles Observers Indexes Equations Mathematical model Roads Acceleration
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

New rollover index for detection of tripped and un-tripped rollovers

Real-time automotive slip angle estimation with nonlinear observer

Fuzzy observer with unknown inputs using unmeasurable premise variables for vehicle dynamics and road geometry estimation

Finite time observer design for a class of nonlinear systems with unknown inputs

Real-Time Rollover Propensity Evaluation for Intercity Coach

Vehicle dynamics and road geometry estimation using a Takagi-Sugeno fuzzy observer with unknown inputs

Unknown inputs observers for state and unknown inputs estimation in a class of discrete-time Lipschitz nonlinear systems

State Observer for Bilinear Systems Subjected to unknown inputs

Stress estimation using unknown input observer

Real-time estimation of rollover index for tripped rollovers with a novel unknown inputs nonlinear observer

Similar Documents

New rollover index for detection of tripped and un-tripped rollovers

Real-time automotive slip angle estimation with nonlinear observer

Fuzzy observer with unknown inputs using unmeasurable premise variables for vehicle dynamics and road geometry estimation

Finite time observer design for a class of nonlinear systems with unknown inputs

Real-Time Rollover Propensity Evaluation for Intercity Coach

Vehicle dynamics and road geometry estimation using a Takagi-Sugeno fuzzy observer with unknown inputs

Unknown inputs observers for state and unknown inputs estimation in a class of discrete-time Lipschitz nonlinear systems

State Observer for Bilinear Systems Subjected to unknown inputs

Stress estimation using unknown input observer

Real-time estimation of rollover index for tripped rollovers with a novel unknown inputs nonlinear observer