Timing demands get real

Real-time operating systems are being adopted to keep up with the growing number of speedy electronics.

Automakers have used real-time operating systems (RTOSs) in powertrains for years to deliver data transfers and commands with precise timing. Humans do not have the exacting demands of electronic control modules, but more designers are starting to use real-time operating systems inside the cockpit of passenger vehicles.

The driving factor inside the cabin is the plethora of technologies now being used. Navigation systems and cell phones, as well as CD, DVD, and MP3 players, are all sending messages on the databus, often sharing a vehicle's speakers. As these functions and more are added to the electronic controllers that are built into new cars, there's a growing need for companies to come up with strategies that handle burgeoning amounts of software.