Enhancing Interactions for In-Car Voice User Interface with Gestural Input on the Steering Wheel

An empirical study on new-energy vehicle users’ preferences of in-vehicle interaction input methods

“…Furthermore, the acceptance, perceived ease of use, and self-efficacy for using voice control to play music were significantly higher than other control methods. This is primarily due to the advancements in natural language processing technology, which have made in-vehicle voice interaction a mature technology [ 75 ]. Additionally, using voice interaction to control music playback while driving helps ensure driving safety [ 76 ].…”

In-vehicle Performance and Distraction for Midair and Touch Directional Gestures

“…Likely due to familiarity and the manufacturing economy, a touchscreen is commonly used for primary input, but this means the driver has to momentarily redirect their visual focus away from the roadway [25]. Speech control [2,7] and steering wheel buttons [13,29] are potential eyes-free alternatives, but they have limitations. For instance, speech can be slow and unreliable, especially in loud environments, and it can disturb passengers [7,15].…”

“…Speech control [2,7] and steering wheel buttons [13,29] are potential eyes-free alternatives, but they have limitations. For instance, speech can be slow and unreliable, especially in loud environments, and it can disturb passengers [7,15]. Steering wheel buttons increase manufacturing complexity and cost, and they are typically reserved for dedicated vehicle functions like cruise control.…”