Advertisement

A Novel Approach for Parametrization of Suspension Kinematics

  • Georg Rill
  • Abel Arrieta CastroEmail author
Conference paper
  • 5 Downloads
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

In the automotive industry, simulations are needed to analyse the dynamics of vehicles and also of its main components and subsystems, e.g. tires, brakes and suspension systems. These simulations are required for an early-stage development and in consequence, they must deliver realistic results. Suspension systems plays a key role in comfort and safety of road vehicles. They usually consist of rigid links and force elements that are arranged with a specific topology. In addition, some of their functionalities are to carry the weight of the car and the passengers, and maintain a correct wheel alignment. In simulations involving suspension systems, lookup-tables are frequently used. They are obtained from a Kinematic and Compliance (KnC) test and then standardized for a specific vehicle simulation software. Nonetheless, lookup-tables require a reasonable number of characteristic points. Additionally, derivatives, interpolation, and extrapolation are not necessarily smooth. This produces results that depend on the interpolation technique and may be inaccurate. In this paper, a novel method called “design kinematics” is proposed. This method can describe the kinematic properties of almost any type of suspension systems. Comparisons with an analytic calculation and a KnC measurement shown that the design kinematics is able to represent the kinematic and compliance properties of suspension systems extremely well and very efficiently.

Keywords

Suspension systems Design kinematics Kinematic and compliance test 

References

  1. 1.
    Rill, G., Arrieta Castro, A.: The influence of axle kinematics on vehicle dynamics. In: Kecskemethy, A., Geu, F.F., Carrera, E., Elias, D. (eds.) Interdisciplinary Applications of Kinematics. Mechanisms and Machine Science, vol. 71, pp. 23–31. Springer, Cham (2019)CrossRefGoogle Scholar
  2. 2.
    CarSim. https://www.carsim.com. Accessed June 2019
  3. 3.
  4. 4.
    Rill, G.: Road Vehicle Dynamics: Fundamentals and Modeling. CRC Press, Boca Raton (2012)Google Scholar
  5. 5.
    ABDynamics: The SPMM 5000E (Suspension Parameter Measurement Machine). https://www.abdynamics.com/en/products/lab-testing/kinematics-and-compliance/spmm-5000. Accessed June 2019
  6. 6.
    MTS: Dynamic Kinematic and Compliance Testing. https://www.mts.com/cs/groups/public/documents/library/dev_002222.pdf. Accessed June 2019
  7. 7.
    Rill, G.: Sophisticated but quite simple contact calculation for handling tire models. Multibody Syst. Dyn. 45, 131–153 (2019)MathSciNetCrossRefGoogle Scholar
  8. 8.
    Rill, G.: Multibody systems and simulation techniques. In: Lugner, P. (ed.) Vehicle Dynamics of Modern Passenger Cars. CISM International Centre for Mechanical Sciences (Courses and Lectures), vol. 582, pp. 309–375. Springer, Cham (2019)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.OTH RegensburgRegensburgGermany
  2. 2.Elektronische Fahrwerksysteme GmbHGaimersheimGermany

Personalised recommendations