BS ISO 21717:2018 pdf download

BS ISO 21717:2018 pdf download

BS ISO 21717:2018 pdf download.Intelligent transport systems — Partially Automated In- Lane Driving Systems (PADS) — Performance requirements and test procedures
1 Scope
This document contains the basic control strategy, minimum functionality requirements, basic driver interface elements, minimum requirements for diagnostics and reaction to failure, and performance test procedures for Partially Automated In-Lane Driving Systems (PADS).
This document is applicable to passenger cars, commercial vehicles and buses. It is not applicable to automated driving systems of level 3 or higher (as defined in SAE J3016:2016).
2 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, Intelligent transport systems — Adaptive cruise control systems — Performance requirements and test procedures
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at
— IEC Electropedia: available at
3.1 subject vehicle
vehicle equipped with PADS
3.2 forward vehicle
vehicle in front of and moving in the same direction and travelling on the same roadway as the subject vehicle
3.3 system states
one of several stages or phases of system operation
Note 1 to entry: See Figure 1.
3.3.1 PADS off state
state in which the system is switched off
3.3.2 PADS stand-by state
state in which the system is ready for activation by the driver
6.1.3 active state
— In both states of the PADS active state the system shall provide speed and distance control in accordance with ISO 15622. Therefore ACC shall be in active state when PADS is in PADS active state.
— In both states of the PADS active state the system shall evaluate the activation criteria for lateral control. One of the activation criteria for PADS longit-lat shall be that the system has determined the position of the vehicle within the lane relative to the lane boundaries of the subject vehicle’s lane or relative to a forward vehicle. It is up to the manufacturer to decide whether it is necessary to detect the position of the subject vehicle’s lane by one or both lane boundaries of the lane and/or relative to forward vehicles. Other criteria to be selected by the manufacturer may be the type of the lane boundaries (e.g. incidental road feature or solid or dashed lane marking), a minimum vehicle speed, driver actions, steering angle and other vehicle conditions. At least under the conditions of the test defined in Clause 7 the activation criteria shall be fulfilled.
— The transition DEACTIVATE from PADS active to PADS stand-by can be performed by the driver or automatically, for instance after a system failure has occurred.