Browse Publications Technical Papers 2015-01-0234
2015-04-14

System Design and Verification for a Safety Related Integrated Sensor 2015-01-0234

This paper presents the engineering aspects of an integrated, monolithic, angular position sensor to be developed as Safety Element out of Context (SEooC) in accordance with ISO-26262[1]. The sensor is a Hall-effect-based angular sensor, used in a wide range of automotive, safety-critical applications such as accelerator pedal position, throttle-valve position, or any other application requiring the accurate measurement of the angular position of a mechanical part. The assumed safety requirements allocated to this sensor have to be developed according to ASIL-C.
The mapping between technical safety requirements and architecture elements, as conveyed by the technical safety concept, will be first presented. Failure mode effect and Diagnostic Analysis (FMEDA)[2], supporting the safety mechanism specification will be discussed next; here a safety mechanism selection guide is also proposed. The paper will finally show how this safety-centric analysis is integrated into a classic mixed-signal integrated Circuit verification methodology.

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