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Domain/Distributed Architecture

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The shift from traditional domain distributed architectures toward zonal and centralized automotive architectures is one of the most significant trends in automotive. A distributed architecture includes multiple electronic control units (ECUs) with lots of microcontrollers, all running individual pieces of software that execute a specific function.

With existing domain approaches, systems are grouped by function within the vehicle, such as in-vehicle infotainment (IVI), connectivity, powertrain, and more. This used to be sustainable, but the number of sensors, cameras and electronics have multiplied exponentially in recent years. In some models there are as many as 150 ECUs, which adds complexity and requires more wiring, driving up the cost as well as the weight of vehicles.

As such, vehicle architectures will transform over time, with some features going into vehicles sooner than others as each OEM determines its best path forward from either a distributed or domain-based vehicle architecture to a zonal architecture.

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Changes In Auto Architectures

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Shifting Auto Architectures