Towards an Interaction Language for Force-enabled Touchpads in Cars

ABSTRACT

Force-based touch input is a novel input method for automotive interfaces. It constitutes an efficient and effective way of in-car interaction with an added degree of freedom. Research on force-based in-car interfaces is still scarce. Recommendations such as gesture sets or interaction languages that could guide future implementations have not yet been proposed. As a first step towards closing this gap, we contribute an interaction language for force-enabled input on touchpads in the center console. The language was elicited in a controlled experiment and maps core interactions to common in-car commands. Results from the experiment also shed light onto mental models of in-car force-enabled touchpad input. The elicited interaction language provides guidelines for future force-based touchpad interfaces in the central console.

References

1. Angelini, L., Carrino, F., Carrino, S., et al. Gesturing on the steering wheel: a user-elicited taxonomy. Proceedings of AutomotiveUI '14, ACM (2014), 1--8.
2. Diwischek, L. and Lisseman, J. Tactile feedback for virtual automotive steering wheel switches. Proceedings of the 7th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, ACM (2015), 31--38.
3. Döring, T., et al. Gestural Interaction on the Steering Wheel: Reducing the Visual Demand. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, ACM (2011), 483--492.
4. Pfleging, B., et al. Multimodal Interaction in the Car: Combining Speech and Gestures on the Steering Wheel. Proceedings of the 4th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, (2012), 155--162.
5. Richter, H., Ecker, R., Deisler, C., and Butz, A. HapTouch and the 2+ 1 state model: potentials of haptic feedback on touch based in-vehicle information systems. Proceedings of the 2nd international conference on automotive user interfaces and interactive vehicular applications, ACM (2010), 72--79.
6. Riener, A., Ferscha, A., Bachmair, F., et al. Standardization of the in-car gesture interaction space. Proceedings of the 5th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, (2013), 14--21.
7. Sheik-Nainar, M., Huber, J., Bose, R., and Matic, N. Force-enabled TouchPad in Cars: Improving Target Selection using Absolute Input. Proceedings of the 2016 CHI Conference Extended Abstracts on Human Factors in Computing Systems, (2016), 2697--2704.
8. Vatavu, R.-D. and Wobbrock, J.O. Formalizing Agreement Analysis for Elicitation Studies: New Measures, Significance Test, and Toolkit. Proceedings of the 33rd Annual ACM Conference on Human Factors in Computing Systems, ACM (2015), 1325--1334.
9. Wobbrock, J.O., Morris, M.R., and Wilson, A.D. User-defined Gestures for Surface Computing. Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, ACM (2009), 1083--1092.

Index Terms

• Human-centered computing

  • Human computer interaction (HCI)