ISO 22735:2021 PDF

Name: ISO 22735:2021 — Road vehicles — Test method to evaluate the performance of lane-keeping assistance systems
SKU: ISO 22735:2021
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Road vehicles — Test method to evaluate the performance of lane-keeping assistance systems

Название (английский):

ISO 22735:2021

Road vehicles — Test method to evaluate the performance of lane-keeping assistance systems

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 23
Дата публикации:: 21 мая 2021 г.
Издание:: ISO IS 22735 edition 1 version 1
ICS:: 43.020

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Описание (английский):

This document specifies test methods and performance metrics to evaluate the behaviour of a vehicle equipped with lane keeping assistance system (LKAS, see 3.2). For this purpose, variables relevant to vehicle dynamics as well as controllability of a vehicle with LKAS and their measurement methods are defined. A system requiring a driver intervention is excluded from the scope. This document applies to the vehicles of M1 category.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 22735:2021 - Road vehicles - Test method to evaluate the performance of lane-keeping assistance systems provides standardized test methods and performance metrics to assess the behaviour of vehicles equipped with lane keeping assistance systems (LKAS). The standard defines the variables, measurement methods, test conditions and procedures used to quantify LKAS performance for M1 category passenger vehicles. Systems that require driver intervention are excluded.

Key topics and requirements

The standard focuses on vehicle dynamics and controllability measurements relevant to LKAS evaluation. Major technical topics include:

Measured variables and coordinate systems

Vehicle position (X, Y), longitudinal/lateral speed (Vlong, Vlat), yaw rate (Ψ̇), steering torque and wheel/steering velocities.
Lateral deviation from path (Y error) referenced to road- and vehicle-fixed coordinate systems.

Performance metrics

Time and distance to line crossing (TLC, DTLC)
LKAS and lane departure warning (LDW) activation times
Last values before line crossing (e.g., last lateral speed, last yaw rate)
Maximum yaw velocity, maximum lateral acceleration, maximum steering torque during test runs

Test equipment and measurement

Requirements for transducer installation, calibration and data processing.
Guidance on measurement accuracy to ensure repeatable vehicle dynamics data.

Test conditions and procedures

Track and lane marking specifications, environmental conditions, tyre and wheel alignment requirements.
Vehicle preparation, pre-test conditioning (tyres, brakes), LKAS settings and defined test scenarios.
Execution steps for reproducible LKAS performance evaluation and reporting (annexed test report template).

Applications and who uses it

ISO 22735:2021 is relevant for professionals and organizations involved in ADAS development, vehicle safety testing and regulatory assessment:

Vehicle manufacturers and ADAS suppliers - validate and benchmark LKAS behaviour, compare lane-centring vs. lane-departure-prevention strategies.

Independent test laboratories - perform repeatable, standardized tests for performance verification and certification support.

Regulators and type-approval authorities - use consistent metrics to assess compliance and inform policy for active driver assistance features.

Research organizations and OEM safety teams - analyze system limits, edge-case behaviours and human–machine interaction relating to lane keeping.

Related standards

ISO 8855 - vehicle dynamics vocabulary used in ISO 22735.

ISO 15037-1:2019 - general vehicle dynamics test conditions (referenced normative document).

ISO 22735:2021 helps ensure consistent, repeatable evaluation of LKAS performance using clear vehicle-dynamics metrics and prescribed test methods - essential for ADAS validation, safety assessment and product development.

ISO 22735:2021 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and who uses it

Related standards

Технические детали

ISO 15037-1:2019

Road vehicles — Vehicle dynamics test methods — Part 1: General conditions for passenger cars

ISO 8855:1991

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