BS ISO 7635-2006 en_7455 Road vehicles - Air and air hydraulic braking systems of motor vehicles including those with electronic control functions - Test procedures《道路车辆.包括电控功能的机.pdf

1、BRITISH STANDARD BS ISO 7635:2006 Road vehicles Air and air/hydraulic braking systems of motor vehicles, including those with electronic control functions Test procedures ICS 43.040.40 BS ISO 7635:2006 This British Standard was published under the authority of the Standards Policy and Strategy Commi

2、ttee on 31 August 2006 BSI 2006 ISBN 0 580 49031 9 National foreword This British Standard 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 responsibili

3、ty to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standar

4、ds Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard d

5、oes not of itself confer immunity from legal obligations. aid enquirers to understand the text; 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 develop

6、ments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii 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 w

7、as last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 7635:2006(E)INTERNATIONAL STANDARD ISO 7635 Third edition 2006-06-01 Road vehicles Air and air/hydraulic braking systems of motor vehicles, including those with electronic control functions Test procedure

8、s Vhicules routiers Systmes de freinage air comprim ou hydropneumatiques pour les vhicules moteur, y compris les systmes fonctions de commande lectroniques Mthodes dessaiii iii Contents Page Foreword. v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Symbols . 4 5 Test site condi

9、tions 6 5.1 Test site . 6 5.2 Road surface condition 6 5.3 Ambient conditions 7 6 General requirements. 7 7 Recommended sequence 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 Lad

10、en. 10 7.6 Failure tests Laden. 10 7.7 Basic performance tests Laden 10 8 Vehicle preparation. 11 8.1 Documents and basic 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 Stat

11、ic tests and checks 13 9.1 Static braking force and control force vs. line pressure 13 9.2 Capacity of energy sources. 13 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

12、 actuators. 17 9.7 Additional tests on vehicles equipped with EBS 18 10 Basic performance tests Unladen 18 10.1 Type 0 test (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

13、 Hill holding test 19 10.4 Secondary braking system test. 19 10.5 Wheel locking sequence 20 11 Failure tests Unladen. 20 11.1 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

14、 of the energy source on vehicles equipped with EBS . 21 12 ABS tests Unladen . 22 12.1 ABS failure. 22 12.2 Determination 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

15、of adhesion utilization on low adhesion surface 26 12.5 Additional checks . 26 13 ABS tests Laden . 27 13.1 Additional split 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 effe

16、ctiveness, engine disconnected) 30 14.2 Failed load sensing device test . 30 14.3 Energy source failure test 30 15 Basic performance 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

17、 braking system cold brake effectiveness, engine disconnected). 32 15.5 Type 0 test (service braking system cold brake, engine 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

18、 test) 36 Annex A (normative) Typical braking equipment 38 Bibliography . 40 BS ISO 7635:2006 v Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carr

19、ied out through ISO technical committees. Each member body interested in a subject for which a technical committee has been 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.

20、ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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 Internat

21、ional Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. 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 e

22、lements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such 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 repla

23、ces the second edition (ISO 7635:2003), which has been technically revised. BS ISO 7635:2006blank 1 Road vehicles Air and air/hydraulic braking systems of motor vehicles, including those with electronic control functions Test procedures 1 Scope This International Standard specifies the method of tes

24、ting the air or air over hydraulic braking systems of vehicles of categories M and N (excluding M1 and N1) as defined in Annex 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 metho

25、ds covering lock actuators or the electrical regenerative braking systems of electric and hybrid vehicles are not included in 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 Stand

26、ard. The values in square brackets and the values in tables are taken from UN-ECE Regulation No. 13. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the lat

27、est edition of the referenced document (including any amendments) applies. ISO 611:2003, Road vehicles Braking of automotive vehicles 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 vehic

28、les Connectors for the electrical connection of towing and towed vehicles Part 1: Connectors for braking systems and running gear 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 brakin

29、g systems and running gear of vehicles with 12 V nominal supply voltage ISO 11992 (all parts), Road vehicles Interchange of digital information on electrical connections between towing and towed vehicles ISO 12161, Road vehicles Endurance braking systems of motor vehicles and towed vehicles Test pro

30、cedures ISO 21069-1:2004, 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 1: Pneumatic braking systems BS ISO 7635:20062 ISO 21069-2 1) , Road vehicles Test of braking systems on vehicles with a maximum authorized

31、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 provisions concerning the approval of vehicles with regard to braking NOTE UN-ECE Regulation 13 is periodically updated through amendments and supplements, with this Intern

32、ational Standard having been prepared in accordance with the 09 series of amendments including supplements 1 to 6. When using this 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

33、For the purposes of this document, the terms and definitions given in ISO 611, ISO 1176, and ISO 3833 and the following apply. 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

34、 a pneumatic to hydraulic converter NOTE For a typical system diagram, see Figure A.1. 3.1.2 pneumatic (full air) braking system 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 diag

35、ram, see Figure A 2. 3.1.3 electronic braking system EBS braking system in which control is generated and processed as an electrical signal in the control transmission NOTE Electrical output signals control devices, which produce actuation forces from stored pneumatic energy. 3.1.4 antilock braking

36、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 which 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 whic

37、h 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 are omitted). 1) To be published. BS ISO 7635:2006 3 3.1.4.2 wheel control 3.1.4.2.1 directly controlled wheel wheel whose braking force is modulated according to data prov

38、ided at least by its own sensor 3.1.4.2.2 indirectly controlled wheel wheel whose braking force is modulated according to data provided 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 co

39、ntrol, all sensed wheels are deemed to be directly controlled wheels. 3.1.4.3 full cycling ABS ABS which is repeatedly modulating 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 t

40、o 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 vehicle other than semi-trailer tractor vehicle laden to technically feasible maximum design total mass specified by the vehicle manufacturer and acknowledged by the Tech

41、nical Services NOTE This mass may exceed the “maximum authorized total mass” permitted by national regulations. Mass distribution 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 am

42、ong the axles is such that the load on each axle is proportional to the maximum load for each axle defined by the manufacturer. 3.2.1.2 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 couplin

43、g pin position and the centre-line of the rear axle(s), so as to compensate for the dynamic load transfer from the semi-trailer NOTE 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 othe

44、r than semi-trailer tractor vehicle laden to complete vehicle kerb mass without load or occupant but with the fuel tank filled to 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 pro

45、vided NOTE During the tests, the fuel quantity in the fuel tank is maintained at least to 50 % of its capacity. An increase up to 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

46、removed. For a vehicle without body, the manufacturer declares the minimum axle loads for a bodied vehicle. BS ISO 7635:20064 3.2.2.2 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

47、3.3.1 pressure indicated by manufacturer reservoir pressure specified by the manufacturer from which it is possible to achieve the 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

48、pressure, in the case of an installation with a pressure regulating device; and 90 % of the asymptotic pressure, in the case of an 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 p

49、ressure 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, e.g. ADR vehicles 4 Symbols For the purposes of this International Standard the symbols given in Table 1 apply. Ta