HapTouch and the 2+1 state model: potentials of haptic feedback on touch based in-vehicle information systems

  • Authors:
  • Hendrik Richter;Ronald Ecker;Christopher Deisler;Andreas Butz

  • Affiliations:
  • University of Munich;BMW Group Research and Technology;BMW Group Research and Technology;University of Munich

  • Venue:
  • Proceedings of the 2nd International Conference on Automotive User Interfaces and Interactive Vehicular Applications
  • Year:
  • 2010

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Abstract

Haptic feedback on touch-sensitive displays provides significant benefits in terms of reducing error rates, increasing interaction speed and minimizing visual distraction. This particularly holds true for multitasking situations such as the interaction with mobile devices or touch-based in-vehicle systems. In this paper, we explore how the interaction with tactile touchscreens can be modeled and enriched using a 2+1 state transition model. The model expands an approach presented by Buxton. We present HapTouch -- a force-sensitive touchscreen device with haptic feedback that allows the user to explore and manipulate interactive elements using the sense of touch. We describe the results of a preliminary quantitative study to investigate the effects of tactile feedback on the driver's visual attention, driving performance and operating error rate. In particular, we focus on how active tactile feedback allows the accurate interaction with small on-screen elements during driving. Our results show significantly reduced error rates and input time when haptic feedback is given.