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Application Pressure for an Electronic Brake System: Estimation and Implementation of a Recursive Filter
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2009 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Scania CV AB is one of the major heavy truck manufacturers in the world. Many of their trucks use a brake system that is electronic where the driver demands retardation and the brake power is generated pneumatically. The objective of this thesis is to re-search if it is possible to determine the pressure at which the brakes start giving a retard-ing force, the application pressure, for the Electronic Brake System (EBS) and if a pre-dictive estimation of the application pressure can be implemented.

Three different ways of determining the application pressure are presented in the thesis and a signal processing method where the mean of pre-braking acceleration is used for change detection gives the most reliable results. This method is then implemented in a recursive filter where a predictive estimation of the application pressure is developed. Due to the lack of precision in the signals the estimation does not give a result that can be used and until this is solved by Scania it is difficult to see how a good way of pre-dicting the application pressure can be developed.

Place, publisher, year, edition, pages
2009.
Series
UPTEC STS, ISSN 1650-8319 ; 09 039
Identifiers
URN: urn:nbn:se:uu:diva-111173OAI: oai:DiVA.org:uu-111173DiVA, id: diva2:279601
Presentation
(English)
Uppsok
Technology
Supervisors
Examiners
Available from: 2009-12-04 Created: 2009-12-04 Last updated: 2009-12-04Bibliographically approved

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CiteExportLink to record
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  • apa
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