Download 13-06-19_-_Engelse-den_-_Afstudeercoll

DELFT UNIVERSITY OF TECHNOLOGY
Department of Precision and Microsystems Engineering
13 August 2017
To:
the staff of PME
the students of PME
Subject:
PME-Final Presentation MSc Project
We are pleased to invite you to attend the PME- Final Presentation MSc Project at:
Wednesday 19 June 2013
Lecture-room Simon Stevin (F)
Mekelweg 2
2628 CD DELFT
13.45 hrs
J.A. den Engelse, specialisation: Automotive
Title:
Estimation of the Lateral Force, acting at the Tire Contact Patch of a Vehicle
Wheel, using a Hub Bearing Unit instrumented with Strain Gauges and Eddycurrent Sensors
Vehicles are becoming a more and more mechatronic system with increasing safety demands. Several
systems, like the Antilock Braking System (ABS) and the Electronic Stability Control (ESC), seek to optimize
the forces acting at the contact patch of a tire. Currently, these systems are using several sensors as its
input to determine if a control action is needed. A possible way to improve the control algorithms behind
these systems is to directly use the forces acting on the individual wheels of a vehicle as the control inputs.
To measure these forces, a Load Sensing Bearing (LSB) is developed at SKF. A hub bearing unit is
instrumented with strain gauges and Eddy-current sensors to measure the elastic deformation of the
bearing outer ring and the tilting movement of the ABS-ring respectively. Both of these measurements are
used to give insight into the forces acting on the wheel.
The main objective of this research is the estimation of the lateral force (the force in the axial direction)
acting at the tire contact patch of a wheel of a test vehicle, a BMW E60.
The load sensing equipment, consisting of a hub bearing unit equipped with strain gauges and Eddy-current
sensors, has been installed into the test vehicle and tests have been performed to determine the accuracy
of lateral force estimation. The results will be shown.
The presentation will be given in English.
14.10 hrs
Debate
14.30 hrs
End
Attending colloquia is an obligatory part of the curriculum of PME.
The presence of other people who are interested will be appreciated.