1、BSI Standards PublicationBS ISO 23828:2013Fuel cell road vehicles Energy consumptionmeasurement Vehiclesfuelled with compressedhydrogenBS ISO 23828:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 23828:2013. Itsupersedes BS ISO 23828:2008 which is withdraw
2、n.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/69, Electric vehicles.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are r
3、esponsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 79889 4ICS 43.120Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards
4、 Policy and Strategy Committee on 30 November 2013.Amendments issued since publicationDate Text affectedBS ISO 23828:2013 ISO 2013Fuel cell road vehicles Energy consumption measurement Vehicles fuelled with compressed hydrogenVhicules routiers avec pile combustible Mesurage de la consommation dnergi
5、e Vhicules aliments par hydrogne comprimINTERNATIONAL STANDARDISO23828Second edition2013-11-15Reference numberISO 23828:2013(E)BS ISO 23828:2013ISO 23828:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this public
6、ation may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the countr
7、y of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 23828:2013ISO 23828:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative reference
8、s 13 Terms and definitions . 14 Measurement accuracy 24.1 General . 24.2 Hydrogen measurement accuracy 25 Hydrogen consumption measurement 25.1 General . 25.2 Pressure method . 35.3 Gravimetric method 35.4 Flow method . 36 Test conditions and instrumentation . 36.1 Test conditions 36.2 Test instrume
9、ntation . 56.3 Fuel consumption tests 56.4 Measurement and calculation over applicable driving test (ADT) 56.5 Correction of the test results for FCHEV . 67 Presentation of results . 7Annex A (informative) Test procedure in Japan 8Annex B (informative) Test procedure in Europe 12Annex C (informative
10、) Test procedure in the U.S.A. .16Annex D (normative) Pressure method 22Annex E (normative) Gravimetric method 24Annex F (normative) Flow method 26Annex G (informative) Current method 28Annex H (informative) Determination of tank surface temperature measuring points .30Annex I (informative) Test res
11、ults of hydrogen consumption of test vehicle 34Annex J (normative) Calculation of allowable range of RESS energy change 36Annex K (normative) Linear correction method using a correction coefficient 38Bibliography .40BS ISO 23828:2013ISO 23828:2013(E)ForewordISO (the International Organization for St
12、andardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the rig
13、ht to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures
14、 used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rul
15、es of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights ident
16、ified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation
17、on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is
18、ISO/TC 22, Road vehicles, Subcommittee SC 21, Electrically propelled road vehicles.This second edition cancels and replaces the first edition (ISO 23828:2008), which has been technically revised.iv ISO 2013 All rights reservedBS ISO 23828:2013INTERNATIONAL STANDARD ISO 23828:2013(E)Fuel cell road ve
19、hicles Energy consumption measurement Vehicles fuelled with compressed hydrogen1 ScopeThis International Standard specifies the procedures for measuring the energy consumption of fuel cell passenger cars and light-duty trucks that use compressed hydrogen and which are not externally chargeable.2 Nor
20、mative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments)
21、 applies.ISO 10521 (all parts), Road vehicles Road loadISO 14687-2, Hydrogen fuel Product specification Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehiclesISO/TR 8713, Electrically propelled road vehicles Vocabulary3 Terms and definitionsFor the purposes of this document,
22、 the terms and definitions given in ISO/TR 8713 and the following apply.3.1applicable driving testADTsingle driving test schedule which is specified for each regionEXAMPLE Chassis dynamometer test cycle for light-duty vehicles in Japan (JC08), New European Driving Cycle (NEDC), Urban Dynamometer Dri
23、ving Schedule (UDDS).3.2charge balance of batterychange of charge in battery during fuel consumption measurementNote 1 to entry: Normally expressed in Ah.3.3energy balance of batteryERESSchange of energy in battery during fuel consumption measurementNote 1 to entry: Normally expressed in Wh.Note 2 t
24、o entry: For practical use, the energy balance of a rechargeable energy storage system (RESS) is approximated by multiplying the charge balance of battery in Ah by the nominal voltage in V. “Nominal voltage” is defined in ISO 12405-1 or ISO 12405-2.3.4fuel cell hybrid electric vehicleFCHEVelectrical
25、ly propelled vehicle with a RESS and a fuel cell system as power sources for vehicle propulsion ISO 2013 All rights reserved 1BS ISO 23828:2013ISO 23828:2013(E)3.5fuel cell vehicleFCVelectrically propelled vehicle with a fuel cell system as power source for vehicle propulsion3.6pure fuel cell vehicl
26、epure FCVFCV with only a fuel cell system as power source for vehicle propulsion3.7rated capacitysuppliers specification of the total number of ampere-hours that can be withdrawn from a fully charged battery pack or system for a specified set of test conditions such as discharge rate, temperature, d
27、ischarge cut-off voltage, etc.3.8rechargeable energy storage systemRESSsystem that stores energy for delivery of electric power and which is rechargeableEXAMPLE Batteries, capacitors.3.9regenerative brakingbraking with conversion of kinetic energy into electric energy for charging the RESS3.10state
28、of chargeSOCavailable capacity in a battery pack or system expressed as a percentage of rated capacity4 Measurement accuracy4.1 GeneralMeasurement accuracy shall be in accordance with national standards.4.2 Hydrogen measurement accuracyTest apparatus shall ensure the accuracy of measurement of 1 % f
29、or the total mass of hydrogen consumption during the applicable driving test (ADT), unless otherwise specified in the relevant annexes.5 Hydrogen consumption measurement5.1 GeneralHydrogen consumption shall be measured using one of the following: pressure method; gravimetric method; flow method.2 IS
30、O 2013 All rights reservedBS ISO 23828:2013ISO 23828:2013(E)5.2 Pressure methodHydrogen consumption is determined by measuring the pressure and temperature of gas in the hydrogen tank before and after the test. A tank with known internal volume that allows measurement of gas pressure and temperature
31、 shall be used for the test. Pressure method shall be performed in accordance with Annex D.5.3 Gravimetric methodHydrogen consumption is calculated by measuring the mass of the hydrogen tank before and after the test. Gravimetric method shall be performed in accordance with Annex E.5.4 Flow methodTh
32、e amount of hydrogen supplied to a vehicle is measured by a flowmeter. Flow method shall be performed in accordance with Annex F.6 Test conditions and instrumentation6.1 Test conditions6.1.1 GeneralFor test conditions, the following applies unless otherwise specified in the regional standards or reg
33、ulations (see Annex A, B, or C, for example).6.1.2 Ambient temperatureTests shall be conducted at an ambient temperature of (25 5) C.6.1.3 Vehicle conditions6.1.3.1 Vehicle conditioningPrior to testing, the test vehicle shall be stabilized; this includes vehicle mileage accumulation in accordance wi
34、th a manufacturer-determined distance, unless otherwise specified in Annex A, B, or C.6.1.3.2 Vehicle appendagesVehicles shall be tested with normal appendages (mirrors, bumpers, etc.). When the vehicle is on the dynamometer, certain items (e.g. hub caps) should be removed for reasons of safety, whe
35、re necessary.6.1.3.3 Vehicle test massThe vehicle test mass shall be selected according to the regional standards and/or regulations (see Annex A, B, or C, for example).6.1.3.4 Tyres6.1.3.4.1 GeneralThe correctly rated tyres as recommended by the vehicle manufacturer shall be used. ISO 2013 All righ
36、ts reserved 3BS ISO 23828:2013ISO 23828:2013(E)6.1.3.4.2 Tyre pressureThe vehicle tyres shall be inflated to the pressure specified by the vehicle manufacturer according to the test chosen (track or chassis dynamometer).6.1.3.4.3 Tyre conditioningThe tyres shall be conditioned as recommended by the
37、vehicle manufacturer.6.1.3.5 LubricantsThe vehicle lubricants normally specified by the manufacturer shall be used.6.1.3.6 Gear shiftingIf the vehicle is fitted with a manually shifted gear box, gear shifting positions shall correspond to the regional test procedure (see Annex A, B, or C, for exampl
38、e). However, the shift positions should be selected and determined in accordance with the vehicle manufacturers specification.6.1.3.7 Regenerative brakingIf the vehicle has regenerative braking, the regenerative braking system shall be enabled for all dynamometer testing except where specified in 6.
39、1.4.4 chassis dynamometer conditions.If the vehicle is tested on a single axle dynamometer and is equipped with systems such as an antilock braking system (ABS) or a traction control system (TCS), those systems can inadvertently interpret the non-movement of the set of wheels that are off the dynamo
40、meter as a malfunctioning system. If so, these systems shall be temporally disabled for adjustment to achieve normal operation of the remaining vehicle systems, including the regenerative braking system.6.1.3.8 RESS conditioningThe RESS shall be conditioned with the vehicle as specified in 6.1.3.1 o
41、r by equivalent conditioning.6.1.3.9 Test fuelISO 14687-2 and the equivalent regional standards shall apply to test fuel.6.1.4 Chassis dynamometer conditions6.1.4.1 GeneralThe vehicle should generally be tested on a single-axle chassis dynamometer. A vehicle with four-wheel drive shall be tested by
42、modifying the drive train of the vehicle. When the vehicle is modified, the details shall be explained in the test report.Double-axle chassis dynamometer testing should be performed if a modification for single-axle chassis dynamometer testing is not possible for a specific four-wheel drive vehicle.
43、6.1.4.2 Dynamometer calibrationThe dynamometer shall be calibrated in accordance with the specifications indicated in the service manual provided by the dynamometer manufacturers.6.1.4.3 Dynamometer warm-upThe dynamometer shall be warmed up sufficiently prior to testing.4 ISO 2013 All rights reserve
44、dBS ISO 23828:2013ISO 23828:2013(E)6.1.4.4 Determining the dynamometer load coefficientThe determination of vehicle road load and the reproduction on a chassis dynamometer shall conform to ISO 10521. Vehicles equipped with regenerative braking systems that are activated at least in part when the bra
45、ke pedal is not depressed shall have regenerative braking disabled during the deceleration portion of coast-down testing on both the test track and dynamometer.6.2 Test instrumentationTest instrumentation shall have accuracy levels as shown in Table 1, unless specified differently in Annex A, B, or
46、C.Table 1 Accuracy of measured valuesItem Unit AccuracyTime s 0,1 sDistance m 0,1 %Temperature C 1 CSpeed km/h 1 %Mass kg 0,5 %Current A 0,5 %Capacitor voltage V 0,5 % of nominal voltage6.3 Fuel consumption tests6.3.1 GeneralDepending on the region concerned, the appropriate procedure shall be follo
47、wed from Annex A, B, or C. Details and common procedures for each test mode are described below.6.3.2 Vehicle preconditioningVehicle preconditioning shall be carried out in accordance with the annex appropriate for the region. In the case of FCHEV, the RESS state of charge can be pre-adjusted by cha
48、rging or discharging, to obtain a suitable energy difference in RESS between the start and the end of test.6.3.3 Vehicle soakThe vehicle shall be soaked in accordance with the appropriate regional procedure prescribed in Annex A, B, or C.6.3.4 Vehicle movement to the test roomWhen the vehicle is bro
49、ught into the test room, and moved during the test if necessary, it shall be pushed or towed (neither driven nor regenerative recharged). The test vehicle shall be set on the chassis dynamometer after the chassis dynamometer has warmed up just before the test. The vehicle shall not be activated during soak until right before starting the test.6.4 Measurement and calculation over applicable driving test (ADT)For the measurement of hydrogen consumption, the test vehicle shall be driven on the chassis dynamomete
