1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58motor vehicles, including those with electronic control functions Test procedures ICS 43.040.40Road
2、 vehicles Air and air/hydraulic braking systems of BRITISH STANDARDBS ISO 7635:2006BS ISO 7635:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2006 BSI 2006ISBN 0 580 49031 9Cross-referencesThe British Standards which implement
3、international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to i
4、nclude all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages i
5、i to v, a blank page, pages 1 to 40, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on
6、 request to its secretary. present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Sta
7、ndard reproduces verbatim ISO 7635:2006 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee AUE/11, Braking systems, which has the responsibility to: aid enquirers to understand the text;Reference numberISO 7635:2006(E)INTERNATI
8、ONAL STANDARD ISO7635Third edition2006-06-01Road vehicles Air and air/hydraulic braking systems of motor vehicles, including those with electronic control functions Test procedures Vhicules routiers Systmes de freinage air comprim ou hydropneumatiques pour les vhicules moteur, y compris les systmes
9、fonctions de commande lectroniques Mthodes dessaiii iiiContents Page Foreword. v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols . 4 5 Test site conditions 6 5.1 Test site . 6 5.2 Road surface condition 6 5.3 Ambient conditions 7 6 General requirements. 7 7 Recommended se
10、quence of the tests 8 7.1 Preparation and static checks and tests 8 7.2 Basic performance tests Unladen 9 7.3 Failure tests Unladen. 9 7.4 ABS tests Unladen . 9 7.5 ABS tests Laden. 10 7.6 Failure tests Laden. 10 7.7 Basic performance tests Laden 10 8 Vehicle preparation. 11 8.1 Documents and basic
11、data 11 8.2 Braking system condition and bedding . 11 8.3 Adjustment of braking equipment 11 8.4 Tyre conditions . 11 8.5 Devices and instruments needed for the testing 11 9 Static tests and checks 13 9.1 Static braking force and control force vs. line pressure 13 9.2 Capacity of energy sources. 13
12、9.3 Service braking system Response time measurement 14 9.4 Automatic braking 15 9.5 Brake failure and defect warning signals. 15 9.6 Tests on vehicles equipped with spring brake actuators. 17 9.7 Additional tests on vehicles equipped with EBS 18 10 Basic performance tests Unladen 18 10.1 Type 0 tes
13、t (service braking system cold brake effectiveness, engine disconnected). 18 10.2 Type 0 test (service braking system cold brake, engine connected) 19 10.3 Parking braking system Hill holding test 19 10.4 Secondary braking system test. 19 10.5 Wheel locking sequence 20 11 Failure tests Unladen. 20 1
14、1.1 Service braking system partial failure test (type 0 test, cold brake effectiveness, engine disconnected) 20 11.2 Failed load sensing device test/function test 21 11.3 Failure of the energy source on vehicles equipped with EBS . 21 12 ABS tests Unladen . 22 12.1 ABS failure. 22 12.2 Determination
15、 of the peak coefficient of adhesion on the high adhesion surface 23 BS ISO 7635:2006iv 12.3 Determination of adhesion utilization on high adhesion surface 24 12.4 Determination of adhesion utilization on low adhesion surface 26 12.5 Additional checks . 26 13 ABS tests Laden . 27 13.1 Additional spl
16、it adhesion test 27 13.2 Energy consumption on low adhesion surface . 27 14 Failure tests Laden. 30 14.1 Service braking system partial failure test (type 0 test, cold brake effectiveness, engine disconnected) 30 14.2 Failed load sensing device test . 30 14.3 Energy source failure test 30 15 Basic p
17、erformance tests Laden 30 15.1 Parking braking system Hill holding test. 30 15.2 Parking braking system Dynamic test . 32 15.3 Wheel locking sequence 32 15.4 Type 0 test (service braking system cold brake effectiveness, engine disconnected). 32 15.5 Type 0 test (service braking system cold brake, en
18、gine connected) 32 15.6 Warning device test 33 15.7 Energy storage capacity test . 33 15.8 Type II or type IIA tests (downhill, endurance braking test). 33 15.9 Type I test (fade test) 36 Annex A (normative) Typical braking equipment 38 Bibliography . 40 BS ISO 7635:2006vForeword ISO (the Internatio
19、nal Organization for Standardization) 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
20、established has the right 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 standar
21、dization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for v
22、oting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 s
23、uch patent rights. ISO 7635 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 2, Braking systems and equipment. This third edition cancels and replaces the second edition (ISO 7635:2003), which has been technically revised. BS ISO 7635:2006blank1Road vehicles Air and air/
24、hydraulic braking systems of motor vehicles, including those with electronic control functions Test procedures 1 Scope This International Standard specifies the method of testing the air or air over hydraulic braking systems of vehicles of categories M and N (excluding M1 and N1) as defined in Annex
25、 7 to the UN-ECE Consolidated Resolution on the Construction of Vehicles (R.E.3.) which are built to comply with UN-ECE Regulation 13/09 including supplements 1-6. Test methods covering lock actuators or the electrical regenerative braking systems of electric and hybrid vehicles are not included in
26、this edition. NOTE Requirements of UN-ECE Regulation 13 related purely to the design of braking systems and braking system components are not part of this International Standard. The values in square brackets and the values in tables are taken from UN-ECE Regulation No. 13. 2 Normative references Th
27、e following referenced documents are indispensable for the application 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 611:2003, Road vehicles Braking of automotive v
28、ehicles and their trailers Vocabulary ISO 1176:1990, Road vehicles Masses Vocabulary and codes ISO 3833:1977, Road vehicles Types Terms and definitions ISO 7638-1, Road vehicles Connectors for the electrical connection of towing and towed vehicles Part 1: Connectors for braking systems and running g
29、ear of vehicles with 24 V nominal supply voltage ISO 7638-2, Road vehicles Connectors for the electrical connection of towing and towed vehicles Part 2: Connectors for braking systems and running gear of vehicles with 12 V nominal supply voltage ISO 11992 (all parts), Road vehicles Interchange of di
30、gital information on electrical connections between towing and towed vehicles ISO 12161, Road vehicles Endurance braking systems of motor vehicles and towed vehicles Test procedures ISO 21069-1:2004, Road vehicles Test of braking systems on vehicles with a maximum authorized total mass of over 3,5 t
31、 using a roller brake tester Part 1: Pneumatic braking systems BS ISO 7635:20062 ISO 21069-2 1), Road vehicles Test of braking systems on vehicles with a maximum authorized total mass of over 3,5 t using a roller brake tester Part 2: Air over hydraulic braking systems UN-ECE Regulation N 13, Uniform
32、 provisions concerning the approval of vehicles with regard to braking NOTE UN-ECE Regulation 13 is periodically updated through amendments and supplements, with this International Standard having been prepared in accordance with the 09 series of amendments including supplements 1 to 6. When using t
33、his International Standard, care should be taken to ensure that changes have not subsequently occurred that affect the test methods or values given. 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 611, ISO 1176, and ISO 3833 and the following apply.
34、3.1 braking systems 3.1.1 air-over hydraulic braking system braking system having stored pneumatic energy, hydraulically actuated brakes and transmission means incorporating a pneumatic to hydraulic converter NOTE For a typical system diagram, see Figure A.1. 3.1.2 pneumatic (full air) braking syste
35、m braking system in which the control and energy are transmitted from the point of application to the brakes by pneumatic transmission devices NOTE For a typical system diagram, see Figure A 2. 3.1.3 electronic braking system EBS braking system in which control is generated and processed as an elect
36、rical signal in the control transmission NOTE Electrical output signals control devices, which produce actuation forces from stored pneumatic energy. 3.1.4 antilock braking systems ABS 3.1.4.1 categories of ABS Category 1: ABS which meets all the requirements of ECE R 13 Annex 13; Category 2: ABS wh
37、ich meets the requirements of ECE R 13 Annex 13, except paragraph 5.3.5 of ECE R 13 Annex 13 (no braking rate on split-adhesion surfaces is prescribed); Category 3: ABS which meets the requirements of ECE R 13 Annex 13, except paragraphs 5.3.4 and 5.3.5 of ECE R 13 Annex 13 (all split adhesion tests
38、 are omitted). 1) To be published. BS ISO 7635:200633.1.4.2 wheel control 3.1.4.2.1 directly controlled wheel wheel whose braking force is modulated according to data provided at least by its own sensor 3.1.4.2.2 indirectly controlled wheel wheel whose braking force is modulated according to data pr
39、ovided by sensor(s) of other wheel(s) NOTE ABS with select-high control are deemed to include both directly and indirectly controlled wheels. In systems with select-low control, all sensed wheels are deemed to be directly controlled wheels. 3.1.4.3 full cycling ABS ABS which is repeatedly modulating
40、 the brake force to prevent the directly controlled wheels from locking NOTE Brake applications where modulation only occurs once during the stop shall not be considered to meet this definition. 3.2 vehicle loading 3.2.1 laden vehicle vehicle laden so as to reach its maximum mass 3.2.1.1 laden motor
41、 vehicle other than semi-trailer tractor vehicle laden to technically feasible maximum design total mass specified by the vehicle manufacturer and acknowledged by the Technical Services NOTE This mass may exceed the “maximum authorized total mass” permitted by national regulations. Mass distribution
42、 on the axles is stated by the vehicle manufacturer. In the event of several load distribution patterns being planned, the distribution of the maximum design total mass among the axles is such that the load on each axle is proportional to the maximum load for each axle defined by the manufacturer. 3
43、.2.1.2 laden semi-trailer tractor vehicle laden as in 3.2.1.1, except that the load defined by the manufacturer may be repositioned halfway between the fifth wheel coupling pin position and the centre-line of the rear axle(s), so as to compensate for the dynamic load transfer from the semi-trailer N
44、OTE This additional load, representing the semi-trailer loading may be carried in a specially designed load frame. 3.2.2 unladen vehicle 3.2.2.1 unladen motor vehicle other than semi-trailer tractor vehicle laden to complete vehicle kerb mass without load or occupant but with the fuel tank filled to
45、 at least 90 % of the capacity specified by the vehicle manufacturer at the start of test and complete with cooling fluid and lubricants, and tools and spare wheel, if provided NOTE During the tests, the fuel quantity in the fuel tank is maintained at least to 50 % of its capacity. An increase up to
46、 200 kg mass over this mass is allowed. This corresponds, for instance, to the driver, one observer and instrumentation. If necessary, the appropriate vehicle mass may be removed. For a vehicle without body, the manufacturer declares the minimum axle loads for a bodied vehicle. BS ISO 7635:20064 3.2
47、.2.2 unladen semi-trailer tractor vehicle laden as in 3.2.2.1 including the fifth wheel coupling or an equivalent load (in value and in position) 3.3 Air system pressures 3.3.1 pressure indicated by manufacturer reservoir pressure specified by the manufacturer from which it is possible to achieve th
48、e required efficiency for service braking and which is the basis for the tests prescribed in 15.7. 3.3.2 maximum pressure pressure available for normal operation: cut-out pressure, in the case of an installation with a pressure regulating device; and 90 % of the asymptotic pressure, in the case of a
49、n installation with a pressure-limited compressor. 3.3.3 minimum pressure pressure available for normal operation: cut-in pressure, in the case of an installation with a pressure regulating device; and 90 % of the pressure indicated by the manufacturer, in the case of an installation with a pressure-limited compressor. 3.4 vehicle types vehicles subject to the European Agreement Concerning the International Carriage of Dangerous Goods
