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Virtual Switches and Indicators in Automotive Displays

Journal Article
ISSN: 2641-9637, e-ISSN: 2641-9645
Published April 14, 2020 by SAE International in United States
Virtual Switches and Indicators in Automotive Displays
Citation: Rush, S., "Virtual Switches and Indicators in Automotive Displays," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(4):2418-2424, 2020,
Language: English


This paper presents recent advances in automotive microprocessor, operating system, and supporting software technology that supports regulatory and/or functional safety graphics within vehicle cockpit displays. These graphics include “virtual switches” that replace physical switches in the vehicle, as well as “virtual indicators” that replace physical indicator lights. We discuss the functional safety design process and impacts to software and hardware architecture as well as the software design methods to implement End-To-End [E2E] network protection between different ECUs and software processes. We also describe hardware monitoring requirements within the display panel, backlighting, and touch screen and examine an example system design to illustrate the concepts.