ISO/TR 17326:2023 PDF

Name: ISO/TR 17326:2023 — Fuel cell road vehicles — Cold start performances under sub-zero temperature — Vehicles fuelled with compressed hydrogen
SKU: ISO/TR 17326:2023
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Fuel cell road vehicles — Cold start performances under sub-zero temperature — Vehicles fuelled with compressed hydrogen

Название (английский):

ISO/TR 17326:2023

Fuel cell road vehicles — Cold start performances under sub-zero temperature — Vehicles fuelled with compressed hydrogen

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 12 декабря 2023 г.
Издание:: ISO TR 17326 edition 1 version 1
ICS:: 43.120

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Описание (английский):

This document describes the test methods for the cold start performances of fuel cell hybrid electric vehicles (FCHEV) under sub-zero temperature conditions. This document applies to FCHEV as passenger cars and light duty trucks with a maximum authorized total mass of 3 500 kg (hereinafter referred to as vehicle) and fuelled with compressed hydrogen.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TR 17326:2023 specifies test methods for assessing cold start performances of fuel cell hybrid electric vehicles (FCHEV) fuelled with compressed hydrogen under sub‑zero temperature conditions. It applies to passenger cars and light‑duty trucks with a maximum authorized total mass of 3 500 kg. The document defines soak conditions, cold‑start and launch test procedures, data acquisition and processing, and reporting requirements to evaluate vehicle readiness, fuel‑cell power delivery and hydrogen consumption during cold starts.

Key topics and technical requirements

Scope & terminology

Applies to FCHEV (fuel cell hybrid electric vehicles) up to 3 500 kg and uses terms from ISO/TR 8713.

Test temperature control

Test chamber temperature controlled within ±2 °C of setpoint; preferred setpoint −7 °C, range 0 °C to −30 °C.
Soak period: effective soak time ≥ 12 h.

Soak and start procedures

Vehicle and RESS (rechargeable energy storage system) preparation allowed per manufacturer; adjustments logged.
Option to use an external hydrogen tank per ISO 23828 for hydrogen‑consumption measurement.

Cold start performance test

Data sampling begins at vehicle start and continues until shutdown; monitor fuel‑cell stack voltage/current and RESS voltage/current.
Record time to vehicle “READY” and time until fuel‑cell stack output reaches ≥ 1 kW; hydrogen consumption during the interval may be recorded.

Launch performance test

Determine dynamometer load coefficient (road‑load reproduction per ISO 10521 series) and simulate sub‑zero road behavior.
After soak and start, operate at full accelerator until fuel‑cell power reaches ≥ 50% of rated power, record time and hydrogen used; then perform a regional ADT drive cycle.

Instrumentation accuracy

Examples: Time ±0.1 s, Speed ±1 %, Temperature ±1 °C, Mass ±0.5 kg (see Table 1).

Data processing & records

Specifies data acquisition requirements, processing methods (Annex B) and test records (Annex C).

Applications and users

ISO/TR 17326:2023 is intended for:

Vehicle manufacturers validating FCHEV cold‑start performance and thermal management design

Test laboratories and certification bodies conducting reproducible cold‑start and launch tests

R&D teams optimizing fuel‑cell control strategies and hydrogen consumption during cold conditions

Suppliers of fuel‑cell systems, RESS and hydrogen storage assessing component behavior in low temperatures

Practical uses include design verification, homologation support, component benchmarking, and comparative testing across vehicle models.

Related standards

ISO/TR 8713 - Electrically propelled road vehicles - Vocabulary

ISO 14687 - Hydrogen fuel quality

ISO 23828 - FCHEV related testing

ISO 10521 series - Road load and chassis dynamometer methods

ISO 6469 series - Safety and fuel‑cell system definitions

Keywords: ISO/TR 17326:2023, fuel cell road vehicles, cold start performances, sub‑zero temperature, compressed hydrogen, FCHEV, test methods, hydrogen consumption, dynamometer.

ISO/TR 17326:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

PD ISO/TR 8713:2012

Electrically propelled road vehicles. Vocabulary

BS ISO 23828:2022

Fuel cell road vehicles. Energy consumption measurement. Vehicles fuelled with compressed hydrogen.

ISO 10521:1992

Motor vehicle road load — Determination under reference atmospheric conditions and reproduction on chassis dy…

ISO 19880-8:2019/Amd 1:2021

Gaseous hydrogen — Fuelling stations — Part 8: Fuel quality control — Amendment 1: Alignment with Grade D of…

ISO 6469-1:2019/Amd 1:2022

Electrically propelled road vehicles — Safety specifications — Part 1: Rechargeable energy storage system (RE…