Power Supply Platform and Functional Safety Concept Proposals for a Powertrain Transmission Electronic Control Unit

Diana Raluca Biba, Mihaela Codruta Ancuti, Alexandru Ianovici, Ciprian Sorandaru, Sorin Musuroi
2020 Electronics  
In the last decade, modern vehicles have become very complex, being equipped with embedded electronic systems which include more than a thousand of electronic control units (ECUs). Therefore, it is mandatory to analyze the potential risk of automotive systems failure because it could have a significant impact on humans' safety. This paper proposes a novel, functional safety concept at the power management level of a system basis chip (SBC), from the development phase to system design. In the
more » ... m design. In the presented case, the safety-critical application is represented by a powertrain transmission electronic control unit. A step-by-step design guideline procedure is presented, having as a focus the cost, safety, and performance to obtain a robust, cost-efficient, safe, and reliable design. To prove compliance with the ISO 26262 standard, quantitative worst-case evaluations of the hardware have been done. The assessment results qualify the proposed design with automotive safety integrity levels (ASIL, up to ASIL-D). The main contribution of this paper is to demonstrate how to apply the functional safety concept to a real, safety-critical system by following the proposed design methodology.
doi:10.3390/electronics9101580 fatcat:gyoxu2ozq5bgnfn4r3k6k3vgwq