Dealing with Functional Safety Requirements for Automotive Systems: A Cyber-Physical-Social Approach

Gharib, Mohamad; Lollini, Paolo; Ceccarelli, Andrea; Bondavalli, Andrea

doi:10.1007/978-3-319-99843-5_18

Cited by 6 publications

(11 citation statements)

References 14 publications

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“…In particular, Limited autonomy is considered to cover situations when drivers might have poor judgment concerning the road situation that is why they might not be able to detect and avoid all obstacles on time. Systems (ADAS) have been developed to increase the driver's safety by interrupting and controlling the activity to be performed 24,25 . In our running example, this may be a maneuver or an acknowledgment from the driver.…”

Section: A Conceptual Model For Modeling and Analyzing The Autonomy Lmentioning

confidence: 99%

A model to discipline autonomy in cyber‐physical systems‐of‐systems and its application

Gharib

Silva

Ceccarelli

2020

J Software Evolu Process

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A Cyber-Physical System-of-Systems (CPSoS) can be defined as a System-of-Systems (SoS), composed of a number of operable and autonomous Constituent Systems (CSs) that are themselves Cyber-Physical Systems (CPSs). A main challenge in integrating CPSoS to function as a single integrated system is the autonomy of its components, which may result in conflicts due to the lack of coordination among its CPSs. In this paper, we advocate that in order to facilitate the integration of CPSs within the overall context of their CPSoS, we may need to adjust their level of autonomy in a way that enables them to coordinate their activities to avoid any conflict among one another. Reducing such conflicts surely contributes to the dependability of the CPSoS. In particular, we propose a novel modelbased approach for modeling and analyzing the autonomy levels of CPSs based on their awareness concerning their operational environment as well as their capability to react in a timely and safe manner while performing their activity. The model is further described in a UML profile and applied to represent activities for autonomous driving scenarios. Using a driving simulator, we implement such models on a target vehicle and we show the resulting safety improvement, especially in terms of reduced collisions.

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Section: A Conceptual Model For Modeling and Analyzing The Autonomy Lmentioning

confidence: 99%

A model to discipline autonomy in cyber‐physical systems‐of‐systems and its application

Gharib

Silva

Ceccarelli

2020

J Software Evolu Process

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“…The ISO 26262 provides appropriate development processes, requirements and safety integrity levels specific for the automotive domain. However, this standard mainly covers Electrical and Electronic (E/E) systems of vehicles leaving the driver and its behavior outside the scope of the standard, i.e., it is assumed that drivers can perform the necessary actions to stay safe [3]. This is not always the case since drivers are a main reason for many accidents [4], i.e., vehicle safety is more than pure technical issue.…”

Section: Introductionmentioning

confidence: 99%

“…In [3], we have proposed an approach based on the ISO 26262 standard that considers the E/E systems along with driver's behavior, but it was not equipped with any kind of automated support. Thus, it is not possible to depend on it for manually dealing with a large number of hazards, Functional Safety Requirements (FSR), safety goals, etc.…”

Section: Introductionmentioning

confidence: 99%

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Engineering Functional Safety Requirements for Automotive Systems: A Cyber-Physical-Social Approach

Gharib¹,

Lollini²,

Ceccarelli³

et al. 2019

2019 IEEE 19th International Symposium on High Assurance Systems Engineering (HASE)

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Several approaches have been developed to assist automotive system manufacturers in designing safer vehicles by complying with functional safety standards. However, most of these approaches either mainly focus on the technical aspects of automotive systems and ignore the social ones, or they are not equipped with an adequate automated support. To this end, we propose a model-based approach for modeling and analyzing the Functional Safety Requirements (FSR) for automotive systems, which is based on the ISO 26262 standard and considers both technical and social aspects of such systems. This approach proposes a UML profile for modeling the FSR starting from item definition until safety validation, and it proposes constraints expressed in OCL to be used for the verification of FSR models. We illustrate the utility of the approach using an example from the automotive domain.

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“…Several ADAS has been designed to increase the driver's safety by interrupting and controlling the activity to be performed (overtaking)[17].…”

mentioning

confidence: 99%

Governance & Autonomy: Towards a Governance-based Analysis of Autonomy in Cyber-Physical Systems-of-Systems

Gharib

Lollini

Ceccarelli

et al. 2020

2020 IEEE 15th International Conference of System of Systems Engineering (SoSE)

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One of the main challenges in integrating Cyber-Physical System-of-Systems (CPSoS) to function as a single unified system is the autonomy of its Cyber-Physical Systems (CPSs), which may lead to lack of coordination among CPSs and results in various kinds of conflicts. We advocate that to efficiently integrate CPSs within the CPSoS, we may need to adjust the autonomy of some CPSs in a way that allows them to coordinate their activities to avoid any potential conflict among one another. To achieve that, we need to incorporate the notion of governance within the design of CPSoS, which defines rules that can be used for clearly specifying who and how can adjust the autonomy of a CPS. In this paper, we try to tackle this problem by proposing a new conceptual model that can be used for performing a governance-based analysis of autonomy for CPSs within CPSoS. We illustrate the utility of the model with an example from the automotive domain.

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Dealing with Functional Safety Requirements for Automotive Systems: A Cyber-Physical-Social Approach

Cited by 6 publications

References 14 publications

A model to discipline autonomy in cyber‐physical systems‐of‐systems and its application

A model to discipline autonomy in cyber‐physical systems‐of‐systems and its application

Engineering Functional Safety Requirements for Automotive Systems: A Cyber-Physical-Social Approach

Governance & Autonomy: Towards a Governance-based Analysis of Autonomy in Cyber-Physical Systems-of-Systems

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