1、 Reference number ISO 6597:2005(E) ISO 2005INTERNATIONAL STANDARD ISO 6597 Fourth edition 2005-07-01 Road vehicles Hydraulic braking systems, including those with electronic control functions, for motor vehicles Test procedures Vhicules routiers Systmes de freinage hydraulique, y compris ceux foncti
2、on de commande lectronique, pour vhicules moteur Modes opratoires dessai ISO 6597:2005(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are li
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5、g to it is found, please inform the Central Secretariat at the address given below. ISO 2005 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without
6、 permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2005 All rights
7、 reservedISO 6597:2005(E) ISO 2005 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Symbols . 4 5 Test site conditions 5 5.1 Road conditions 5 5.2 Test area for vehicles with an anti-lock braking function (ABS) . 5 5.3 Ambient cond
8、itions 6 6 General information 6 7 Preliminary comments on test procedures and requirements 6 8 Recommended test order 8 Annex A (normative) Pre-test phase and static tests. 10 Annex B (normative) Basic performance test Unladen . 15 Annex C (normative) Failure test Unladen 17 Annex D (normative) ABS
9、 function tests with the vehicle unladen 22 Annex E (normative) ABS function tests with the vehicle laden 27 Annex F (normative) Failure test Laden 31 Annex G (normative) Basic performance test Laden. 33 Annex H (normative) Special test . 41 Annex I (normative) Braking systems with energy assistance
10、 Tests for vehicles with vacuum or hydraulic boosters or full power braking systems. 42 ISO 6597:2005(E) iv ISO 2005 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing
11、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 right to be represented on that committee. International organizations, governmental and non-governmental, in liaiso
12、n with ISO, also take part in the work. 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 tec
13、hnical committees is to prepare International 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 dra
14、wn 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. ISO 6597 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 2, Braking systems and equipme
15、nt. This fourth edition cancels and replaces the third edition (ISO 6597:2002), which has been technically revised. This fourth edition incorporates the relevant portions of the International Standard ISO 11835: “Road Vehicles- Motor vehicles. Measurement of braking performance under ABS operation”
16、for testing vehicles which are fitted with anti lock function. INTERNATIONAL STANDARD ISO 6597:2005(E) ISO 2005 All rights reserved 1 Road vehicles Hydraulic braking systems, including those with electronic control functions, for motor vehicles Test procedures 1 Scope This International Standard spe
17、cifies the method of testing the hydraulic braking systems of vehicles of categories M and N which are built to comply with ECE-R 13/09, including supplements 1 to 7. The values in square brackets are taken from ECE Regulation No. 13 for information. Hydraulic braking systems include vacuum-assisted
18、 and power hydraulic-assisted braking systems as well as full power hydraulic braking systems. NOTE Test methods covering the Electrical Regenerative Braking Systems of Electrical and Hybrid Vehicles are not included in this edition. This omission may be corrected by a further annex once these vehic
19、les are in more common use and suitable practical test methods have been developed. 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 latest edition of th
20、e referenced document (including any amendments) applies. ECE Regulation No. 13, Uniform provisions concerning the approval of vehicles with regard to braking, incorporating the 09 series of amendments including supplements 1 to 7 ECE R.E.3, Consolidated Resolution on the Construction of Vehicles 3
21、Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 vehicle categories as defined in ECE R.E.3 3.1.1 category M power-driven vehicles having at least four wheels and used for the carriage of passengers 3.1.2 category N power-driven vehicles having
22、at least four wheels and used for carriage of goods 3.2 categories of anti-lock braking function (ABS) as defined in ECE Regulation No. 13, Annex 13 ISO 6597:2005(E) 2 ISO 2005 All rights reserved3.2.1 category 1 that which meets all the requirements of ECE R 13, Annex 13 3.2.2 category 2 that which
23、 meets all the requirements of ECE R 13, Annex 13 except paragraph 5.3.5. NOTE No braking rate on split-adhesion surfaces is prescribed. 3.2.3 category 3 that which meets all the requirements of ECE R 13, Annex 13 except paragraphs 5.3.4 and 5.3.5 NOTE All split-adhesion tests are omitted. 3.3 vehic
24、le loading 3.3.1 laden vehicle vehicle laden to its maximum technically permissible mass M maxas 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 on the
25、axles is to be stated by the vehicle manufacturer. In the event of several load distribution patterns being planned, the distribution of the maximum mass among the axles is such that the load on each axle is proportional to that maximum technically permissible load for that axle. 3.3.2 unladen vehic
26、le vehicle at its kerb mass without load or occupant but with the fuel tank filled at the start of the test to at least 90 % of the capacity stated by the vehicle manufacturer and complete with cooling fluid and lubricants, and tools and spare wheel(s) NOTE During the tests, the fuel quantity is mai
27、ntained at least at 50 % of the tank capacity, with an allowed increase of up to 200 kg over the unladen vehicle level. This comprises, for instance, the driver, one observer and instrumentation. If necessary, some vehicle mass may have to be removed. For a vehicle without a body, the manufacturer d
28、eclares the minimum mass which has to be reached on each axle, to represent the vehicle with a body and spare wheel(s) if these provisions are foreseen. 3.4 hydraulic pressures (Booster and Full Power Systems) 3.4.1 cut-in pressure system operational pressure in an energy storage device at which the
29、 energy source is reconnected 3.4.2 cut-out pressure system operational pressure in an energy storage device at which the energy source is disconnected 3.5 cold brakes brakes, the hottest of which has an initial temperature, when measured on the disc or on the outside of the drum or on the brake lin
30、ings, lower than 100 C before each stop NOTE With the exception of the hot braking performance test, all other tests are carried out with the brakes in this cold condition. ISO 6597:2005(E) ISO 2005 All rights reserved 3 3.6 wheel control in anti-lock braking (ABS) functions 3.6.1 directly controlle
31、d wheel wheel whose braking force is modulated according to data provided at least by its own sensor 3.6.2 indirectly controlled wheel wheel whose braking force is modulated according to data provided by the sensor(s) of another wheel or other wheels NOTE Anti-lock braking functions with select-high
32、 control are deemed to include both directly and indirectly controlled wheels. In functions with select-low control, all sensed wheels are deemed to be directly controlled wheels. 3.7 full cycling that state of the anti-lock system in which the brake force is repeatedly modulated to prevent the dire
33、ctly controlled wheels from locking NOTE Brake applications where modulation only occurs once during the stop are not considered to meet this definition. 3.8 Electronic braking system (EBS) braking system in which control is generated and processed as an electrical signal in the control transmission
34、 ISO 6597:2005(E) 4 ISO 2005 All rights reserved4 Symbols Table 1 Symbols Symbols Meaning Unit E Wheelbase m F Force N F dynNormal reaction of road surface under dynamic conditions with the anti-lock system operative N F iNormal reaction of road surface on axle i (f or r) under static conditions N F
35、 idynF dynon axle i (f or r) in case of power-driven vehicles N g Acceleration due to gravity (9,81 m/s 2 ) m/s 2h Height of centre of gravity specified by the manufacturer and agreed by the Technical Service conducting the approval test m k Coefficient of adhesion between tyre and road 1 k fk -fact
36、or of the front axle 1 k Hk -value determined on high-adhesion surface 1 k Lk -value determined on the low-adhesion surface 1 k lockValue of adhesion for 100 % slip 1 k mMean k-factor of the vehicle (dynamically weighted) 1 k peakMaximum value of the curve “adhesion versus slip” 1 k rk -factor of th
37、e rear axle 1 M Mass of individual vehicle kg M maxPermissible maximum mass kg p Pressure bar s Stopping distance m t Time interval s t mMean value of several measurements of t s t minMinimum value of t s v Vehicle speed km/h v maxMaximum speed of vehicle (declared by the manufacturer) km/h z Brakin
38、g rate 1 z ALBraking rate z of the vehicle with the antilock system operative 1 z mMean braking rate 1 z MALSz ALof the power-driven vehicle on a “split surface” 1 L , HThe adhesion utilized by the vehicle: quotient of the maximum braking rate with the anti-lock system operative (z AL ) and the coef
39、ficient of adhesion (k) values for high and low-adhesion surfaces respectively 1 ISO 6597:2005(E) ISO 2005 All rights reserved 5 5 Test site conditions 5.1 Road conditions 5.1.1 Surface Except for ABS tests (see 5.2), the road surface shall be a smooth, hard-surfaced roadway of asphalt, concrete, or
40、 other surface with an equivalent coefficient of adhesion. The road surface shall be free from loose material and dry for those tests requiring high adhesion. 5.1.2 Gradient The road surface shall be substantially level; a tolerance of 1 % average gradient, measured over a minimum distance of 50 m,
41、is allowed. The type II test or the braking system hill-holding test may be conducted on a specified gradient or on a level road using a towing vehicle. 5.1.3 Camber The camber or transverse gradient across the road surface shall not exceed 2 %. 5.2 Test area for vehicles with an anti-lock braking f
42、unction (ABS) 5.2.1 An area for tests on vehicles with ABS shall be provided consisting of a surface providing a peak coefficient of adhesion (k peaku 0,4) and of a size sufficient to enable the tests to be performed in safety. Furthermore this area shall be preceded and followed by a surface which
43、provides a peak coefficient of adhesion of about 0,8, which is of sufficient length on the approach side to enable the test speeds to be attained. For testing vehicles fitted with ABS of categories 1 or 2, a low-adhesion surface shall have a high-adhesion surface on at least one side so as to enable
44、 the split-adhesion tests to be performed. Each surface shall be sufficiently wide to allow the separate determination of its peak coefficient of adhesion. 5.2.2 The surfaces used for the split adhesion tests shall be such that: k HW 0,5 and k H /k LW 2 If any doubt arises that this requirement is m
45、et, the peak coefficient of adhesion shall be ascertained by using the procedure detailed in D.3. It is always necessary to measure the peak coefficient of adhesion when testing a vehicle fitted with ABS of categories 1 or 2. 5.2.3 For tests of the ABS, the track used shall be regularly characterize
46、d by preparation (for the low- adhesion surface) of a curve showing the actual coefficient of adhesion versus slip from 0 to 100 % slip at a speed of approximately 40 km/h. NOTE Plotting this graph may require a special ABS capable of operating at any preset level of slip. The peak value k peakand t
47、he value at 100 % slip k lockshall be measured and the ratio k peak /k lockcalculated and rounded to 1 decimal place. For the surface to qualify, this ratio shall be: 1 u k peak /k locku 2 Information on the method of measurement of adhesion levels shall be made available. ISO 6597:2005(E) 6 ISO 200
48、5 All rights reserved5.3 Ambient conditions The wind speed shall not exceed an average of 5 m/s. The air temperature shall not exceed 35 C. In exceptional circumstances, up to 45 C may be accepted. This shall be recorded in the test report. 6 General information 6.1 Deceleration measurements used in
49、 this procedure refer to the “mean fully developed deceleration” (MFDD). When reference is made to “prescribed effectiveness”, this is the MFDD and stopping distance performance required in ECE Regulation No. 13 for the relevant test. 6.2 The use of either pedal-application machines or of robots does not reflect real-life vehicle braking and should be discouraged. 6.3 The determination of the optimum vehicle braking performance shall be entrusted to skilled test drivers. This shall be achieved
