Safety & Security
In-vehicle infotainment software architecture: Genivi and beyond - Part 1
One of the first computer systems within an automobile was the 1978 Cadillac Seville's trip computer, run by a Motorola 6802 microprocessor with 128 bytes of RAM and two kilobytes of ROM. The printed source code could not have occupied more than a handful of pages.
In contrast, even the lowest end automobile today contains at least a dozen microprocessors; the highest end cars incorporate in excess of 100 microprocessors. Examples of computers embedded within a modern automobile are shown in Figure 1:
Figure 1 - embedded computing within the modern automobile
With infotainment systems running sophisticated operating systems such as Microsoft Windows and various distributions of Linux, the total embedded software content can easily exceed 100 million lines of code.
Complexity is driven by the inexorable demand for better capabilities, the digitisation of manual and mechanical functions, and the interconnection of our world. While this growth in electronic content has been beneficial to society, that growth is also a key source of our reliability, security, cost, and time-to-market woes. Next-generation infotainment system architecture must help developers manage this complexity.
Automotive Electronics Consolidation
Another important automotive trend is ECU consolidation. As the automobile continues its transformation into an electronic system of systems, electronic component counts and associated wiring content within the car have skyrocketed. This electronics growth poses a significant production cost, physical footprint, and time to market challenge for automotive manufacturers. The response is to reverse the growth trend and instead merge disparate functions into a fewer number of electronic components.
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