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Truck Differential and Rear Axle Modeling

Bengtsson, Rikard and Gundersen, Jasper (2010) In MSc Theses
Department of Automatic Control
Abstract
Physical modeling of the driveline is crucial in many areas within the commercial vehicle industries. To have an accurate model helps the understanding of physical phenomena and is important when performing computational tests and when designing, for example, traction controllers. The differential gear is often modeled as simple as possible, neglecting more complex behaviour. The main goal with this thesis is to create a model of the differential that takes into account some of these neglected properties. To be able to test and observe the behaviour of the differential, a complete driveline is modeled, extending from the engine to the wheels. The driveline model is then validated using existing measurement data. The results from the tests... (More)
Physical modeling of the driveline is crucial in many areas within the commercial vehicle industries. To have an accurate model helps the understanding of physical phenomena and is important when performing computational tests and when designing, for example, traction controllers. The differential gear is often modeled as simple as possible, neglecting more complex behaviour. The main goal with this thesis is to create a model of the differential that takes into account some of these neglected properties. To be able to test and observe the behaviour of the differential, a complete driveline is modeled, extending from the engine to the wheels. The driveline model is then validated using existing measurement data. The results from the tests performed on the model show that there are minor differences on the wheel velocities if the differential is modeled using a more physical approach. Especially the differential behaviour have been shown to accurately describe some of the important features, improving model usability. Implementation of a more complex differential model depends on the area of usage of the model. In addition to driveline modeling, a novel traction controller has been developed and implemented, using the model developed. The controller has shown interesting features such as constraints and prediction, however, further investigations are required to achieve desired performance. (Less)
Please use this url to cite or link to this publication:
author
Bengtsson, Rikard and Gundersen, Jasper
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5851
ISSN
0280-5316
language
English
id
8847424
date added to LUP
2016-03-16 12:26:48
date last changed
2016-03-16 12:26:48
@misc{8847424,
  abstract     = {Physical modeling of the driveline is crucial in many areas within the commercial vehicle industries. To have an accurate model helps the understanding of physical phenomena and is important when performing computational tests and when designing, for example, traction controllers. The differential gear is often modeled as simple as possible, neglecting more complex behaviour. The main goal with this thesis is to create a model of the differential that takes into account some of these neglected properties. To be able to test and observe the behaviour of the differential, a complete driveline is modeled, extending from the engine to the wheels. The driveline model is then validated using existing measurement data. The results from the tests performed on the model show that there are minor differences on the wheel velocities if the differential is modeled using a more physical approach. Especially the differential behaviour have been shown to accurately describe some of the important features, improving model usability. Implementation of a more complex differential model depends on the area of usage of the model. In addition to driveline modeling, a novel traction controller has been developed and implemented, using the model developed. The controller has shown interesting features such as constraints and prediction, however, further investigations are required to achieve desired performance.},
  author       = {Bengtsson, Rikard and Gundersen, Jasper},
  issn         = {0280-5316},
  language     = {eng},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Truck Differential and Rear Axle Modeling},
  year         = {2010},
}