ISO 23132:2020
Road vehicles — Extended Vehicle (ExVe) time critical applications — General requirements, definitions and classification methodology of time-constrained situations related to Road and ExVe Safety (RExVeS)
This document defines the classification methodology of time-constrained situations and their requirements, that are to be addressed by the "ExVe time critical interfaces" described in ISO 20077‑1. Time-constrained situations include safety-critical situations.
It is important for the design of the vehicle to have priority management of "ExVe time critical interface" resources in order to comply with time constrained situations requirements.
The methodology provides a classification, which determines application priorities for optimal vehicle resource allocation.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Conventions and guidelines for specifying RExVeS-related requirements
6 The RExVeS methodology
6.1 General
6.2 Analysis of RExVeS-related scenarios
6.3 Classification of RExVeS-related time-constrained and safety-critical situations
6.3.1 Classification scheme
6.3.2 Classes of severity
6.3.3 Classes of probability of exposure
6.3.4 Classes of controllability
6.3.5 Determination of the priority class of a RExVeS-related time-constrained situation
6.3.6 Template for the description and priority class assignment of a RExVeS-related situation
7 Connected vehicle design prerequisites
Annex A (normative) Template for the description and priority class assignment of RExVeS-related situations (including safety-critical situations)
Annex B (informative) Example 1 of use of the RExVeS template
Annex C (informative) Example 2 of use of the RExVeS template
Annex D (informative) Example 3 of use of the RExVeS template
Annex E (informative) List of use-cases
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Conventions and guidelines for specifying RExVeS-related requirements
6 The RExVeS methodology
6.1 General
6.2 Analysis of RExVeS-related scenarios
6.3 Classification of RExVeS-related time-constrained and safety-critical situations
6.3.1 Classification scheme
6.3.2 Classes of severity
6.3.3 Classes of probability of exposure
6.3.4 Classes of controllability
6.3.5 Determination of the priority class of a RExVeS-related time-constrained situation
6.3.6 Template for the description and priority class assignment of a RExVeS-related situation
7 Connected vehicle design prerequisites
Annex A (normative) Template for the description and priority class assignment of RExVeS-related situations (including safety-critical situations)
Annex B (informative) Example 1 of use of the RExVeS template
Annex C (informative) Example 2 of use of the RExVeS template
Annex D (informative) Example 3 of use of the RExVeS template
Annex E (informative) List of use-cases
Bibliography