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Driving automation and safety systems (ISO TC 204 WG 14)

Domain of interest

The purpose of WG 14 is to standardize general system aspects of driving automation systems (i.e. Level 1 through 5) and active safety systems utilizing external sensing (e.g. collision warning and control assistance systems).

WG14 activities include standardizing:

  • Functional requirements, performance requirements, system specifications and basic test procedures to verify that the functional / performance requirements have been met
  • Vehicle behaviour (vehicle control responses) based on information about conditions external to the vehicle (i.e, from onboard sensor data perceiving conditions outside the vehicle, information received via communications with external sources)
  • Integration of information collected from infrastructure-based devices, roadway maps and real-time data, into driving automation and active safety systems
  • Cooperative operational coordination among vehicles and between vehicles and the infrastructure
  • Functionalities related to improving safety, sustainability, interoperability, efficiency, driving comfort and convenience
  • Terminology and framework

Motorway chauffeur systems

Overview

The ISO 23792 series identifies the performance requirements for an ADS based on its capability to respond to certain conditions and situations. The requirements are derived in order to reliably transfer the control between the human driver and ADS, and for safe operation by the ADS.

The ISO 23792 series focuses on the system functionalities, under the assumption that the FRU is available and responsive to system requests to take over driving tasks.

ISO/TS 23792-1:2023 Intelligent transport systems — Motorway chauffeur systems (MCS) — Part 1: Framework and general requirements

Status: Approved (under revision)

Abstract: This document specifies requirements of the basic set of functionalities and test procedures to verify these requirements. The requirements include vehicle operation to perform the entire dynamic driving task (DDT) within the current lane of travel, to issue a request to intervene (RTI) before disengaging, and to extend operation and temporarily continue to perform the DDT after issuing an RTI.

Description:

This document describes one specific form of system engagement. Other forms are possible. These other system engagement forms, especially those provided in combination with other driving automation system features, are not within the scope of this document.

Requirements and test procedures for the additional functionalities are provided in other parts of the ISO 23792 series.

Means related to setting a destination and selecting a route to reach the destination are not within the scope of this document.

This document applies to MCS installed in light vehicles.

Normative References:

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

  • ISO 15622:2018, Intelligent transport systems — Adaptive cruise control systems — Performance requirements and test procedures
  • ISO/SAE PAS 22736, Taxonomy and definitions for terms related to driving automation systems for on-road motor vehicles

Relationships to other standards:

ISO/DIS 23792-2 Intelligent transport systems — Motorway chauffeur systems (MCS) — Part 2: Requirements and test procedures for discretionary lane change

Status: Edition 1 (under development)

Abstract: This document specifies the requirements and test procedure to verify the requirements for the discretionary lane change functionality (DLC).

Description:

The DLC is an additional functionality that a MCS compliant to the general requirements specified in ISO 23792-1 can be equipped with. When conditions are satisfied, a DLC equipped MCS performs the entire DDT to change the current lane of travel even though it is still possible to continue operation within its current lane of travel. The system monitors the driving environment in the adjacent lanes and operates the SV by adjusting the speed and lateral position to move the SV to the intended lane. MCS may delay the manoeuvre until the conditions for initiating the lane change are satisfied or cancel the lane change when conditions are not satisfied. Activation of the DLC requires an engaged MCS performing in-lane driving. Means related to setting a destination and selecting a route to reach the destination are not in the scope of this document.

This document applies to the system installed in light vehicles

Relationships to other standards:

External References

The European Union- ITS Communications & Information Protocols (EU-ICIP) is a significant resource of ITS standards, and its Vehicle/Roadway Warning/Control page is of particular relevance to this WG's work.

How to get involved