Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Towards a design and optimization methodology for automotive mechatronics
KTH, Superseded Departments, Machine Design.
KTH, Superseded Departments, Machine Design.ORCID iD: 0000-0002-7550-3134
2004 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The number of mechatronic sub-systems in road vehicles is growing fast. Auxiliary systems that traditionally have been driven by the combustion engine via, for instance, gears, belts or hydraulics are being replaced with electric systems. This development is primarily driven by new and improved functionality, but it is also necessary for the transition to electric and hybrid-electric drive trains.

 

A mechatronic sub-system can be very complex to design and especially to optimize, mainly due to the multi domain characteristics of mechatronics. Usually, in traditional methodologies for mechatronic design, the mechanical structure is determined separate from the controller and also from the electric motor design. To improve the results from the mechatronic development process, a more holistic approach is necessary. The foreseen very large production volumes of mechatronic actuation modules for the automotive industry enable such a holistic approach, where all constituent components can be designed and optimized in one common process.

 

The problem that is being approached in this research is delimited to a methodology for conceptual design and optimization of mechatronic actuation modules. Such modules will be the low level corner stones to achieve advanced functionality such as vehicle stability control and collision avoidance. The goal with the methodology is to capture all relevant system design parameters and properties, from all involved engineering domains, in one single evaluation and optimization process.

 

Some previous work has been done in this area, and many different research groups are working on new methods for mechatronics design. Most of the work is however concentrated on design of system dynamics from a control perspective, i.e. optimization of a system’s dynamic performance. The goal with this research project is to find methods that combine the structure design (statics & dynamics) with the controller design (dynamics). Further, the goal is to derive optimization methods that can find the most optimal system configuration and parameter set with respect to both static and dynamic criteria.

Place, publisher, year, edition, pages
2004.
Keyword [en]
Mechatronics, Design Methodology, Optimization, Modeling and Simulation
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-5023OAI: oai:DiVA.org:kth-5023DiVA: diva2:7608
Conference
30th FISITA World Automotive Congress, Barcelona, May 2004
Note
QC 20101220Available from: 2005-04-15 Created: 2005-04-15 Last updated: 2010-12-20Bibliographically approved
In thesis
1. On design methods for mechatronics: servo motor and gearhead
Open this publication in new window or tab >>On design methods for mechatronics: servo motor and gearhead
2005 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

The number of electric powered sub-systems in road-vehicles is increasing fast. This development is primarily driven by the new and improved functionality that can be implemented with electro-mechanical sub-systems, but it is also necessary for the transition to electric and hybrid-electric drive trains.

An electromechanical sub-system can be implemented as a physically integrated mechatronic module: controller, power electronics, electric motor, transmission and sensors, all integrated into one component. A mechatronic module, spans, as all mechatronic systems, over several closely coupled engineering disciplines: mechanics, electronics, electro-mechanics, control theory and computer science. In order to design and optimize a mechatronic system it is therefore desirable to design the system within all domains concurrently. Optimizing each domain or component separately will not result in the optimal system design. Furthermore, the very large production volumes of automotive sub-systems increase the freedom in the mechatronics design process. Instead of being limited to the selection from off-the shelf components, application specific components may be designed.

The research presented in this thesis aims at development of an integrated design and optimization methodology for mechatronic modules. The target of the methodology is the conceptual design phase, where the number of design parameters is relatively small. So far, the focus has been on design methods for the electric motor and gearhead, two of the most important components in an actuation module. The thesis presents two methods for design and optimization of motor and gearhead in mechatronic applications. One discrete method, intended for the selection of off-the-shelf components, and one method mainly intended for high volume applications where new application specific components may be designed. Both methods can handle any type of load combination, which is important in mechatronic systems, where the load seldom can be classified as pure inertial or constant speed.

Furthermore, design models relating spur gear weight, size and inertia to output torque and gear ratio are presented. It is shown that a gearhead has significantly lower inertia and weight than a motor. The results indicate that it almost always is favorable from a weight and size perspective to use a gearhead. A direct drive configuration may only be lighter for very high speed applications. The main contribution of this thesis is however the motor/gear ratio sizing methods that can be applied to any electromechanical actuation system that requires rotational motion.

Place, publisher, year, edition, pages
Stockholm: KTH, 2005. ix, 13 p.
Series
Trita-MMK, ISSN 1400-1179 ; 2005:02
Keyword
Applied mechanics, mechatronics design methodology, servo systems, electric motors, gears, auxiliary systems, Teknisk mekanik
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-167 (URN)
Presentation
2005-02-01, B442, KTH, Brinellvägen 83, Stockholm, 10:00
Supervisors
Note
QC 20101220Available from: 2005-04-15 Created: 2005-04-15 Last updated: 2010-12-20Bibliographically approved

Open Access in DiVA

No full text

Authority records BETA

Wikander, Jan

Search in DiVA

By author/editor
Roos, FredrikWikander, Jan
By organisation
Machine Design
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 297 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf