During the development of such systems, like the products of Knorr-Bremse Systeme für Nutzfahrzeuge GmbH, the consideration of safety and reliability is indispensable. These processes are supported by many well-established and continuously renewed industrial standards. The relations between their requirements and the state of art technologies are often not clear enough. The main aim of my thesis is to clarify these connections through an example and give practical recommendations for the application and adoption of these regulations.
I have been writing my thesis at the ‘KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH’. My task was to examine, in the light of the valid high reliability standards, one of the currently developed E/E/PE (electrical/electronic/programmable electronic) systems, disclose its possible failures and offer an alternative architecture.
In my thesis, I go into the details of IEC61508 and its automotive derivative, called ISO26262.
During my work, I have studied the 7th version of the firm’s electro pneumatic braking system – called EBS –, especially its central controller logic unit. I have made its failure analysis as well. According to the standards mentioned above, I have analyzed the new TMS570 microcontroller architecture, developed by Texas Instruments Inc., to determine whether it could be used alone instead of the current PE architecture.
Besides I have done researches in the specialized literature of common cause failures and offered some ways of dealing with them.