Background
Prior to the advent of Remote Touch, Lexus interiors were typically equipped with touchscreen interfaces. Although this system was regarded by many reviewers as easier to use than conventional rotary knob controllers, the need to place the touchscreen within easy reach limited design possibilities for the interior (by forcing placement of the screen in the center dash and in close proximity to the steering wheel). The enhanced technology trend in the automotive industry also resulted in a plethora of ever-increasing buttons and switches on many luxury vehicles.
In response, several luxury brands had switched to rotary knob control devices, with the aim to simplify cabin layout and consolidate multiple controls with a single device. The BMW iDrive, Audi MMI, and Mercedes-Benz Comand APS interfaces operated using a circular center knob which can be rotated side to side, and pressed to select items, with the rotary knob scrolling through on-screen menus. Of these systems, some reviewers praised their ability to simplify the dash layout, while others levied criticism for reputed complexity and user difficulty, particularly with iDrive.
In the mid 2000s, Lexus began developing an alternative to the touchscreen interface, in light of the latter's restrictions on interior styling and instrument panel configuration. Prototype development and consumer testing was conducted to develop a new control device. Consumer research conducted with Lexus supplier Denso corporation indicated that the prototype control system required no more mental or physical effort than a touchscreen, plus offered interior layouts with more screen visibility, was physically more comfortable to operate, and easier to use while in motion.
Read more about this topic: Remote Touch
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