Car side window kinematics

  • Authors:

  • A. Gfrerrer;J. Lang;A. Harrich;M. Hirz;J. Mayr

  • Affiliations:

  • Institute of Geometry, Graz University of Technology, Austria;Institute of Geometry, Graz University of Technology, Austria;Institute of Automotive Engineering, Graz University of Technology, Austria;Institute of Automotive Engineering, Graz University of Technology, Austria;Institute of Automotive Engineering, Graz University of Technology, Austria

  • Venue:
  • Computer-Aided Design
  • Year:
  • 2011

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Abstract

It is a demanding and time-consuming task to construct the side window mechanism of a car such that the deflections along the seals are minimized. The reason for this is that the window surface S delivered by the stylist, will in general not be movable in a proper way: It is required that the surface tightly moves along the seals. Deflections will necessarily occur no matter how much effort the engineer invests. This article describes how to find a spatial motion that minimizes seal deflection for some given automobile side window surface. Necessary but acceptable modification of the stylist's surface S is also addressed, as well as the lifting mechanism design. It is argued that our systematic approach offers considerable savings compared to the prevailing trial-and-error approach.