System Design and Verification for a Safety Related Integrated Sensor

Vincenzo Sacco; Mathieu Poezart; Gael F. Close

doi:10.4271/2015-01-0234

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.

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

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

SAE MOBILUS