1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 206-4: 1986 ISO8093:1985 Diagnostic systems for road vehicles Part 4: Specification for general requirements for testing electronic systems ISO title: Road vehicles Diagnostic testing of electronic systems UDC 629.11:629.018BSAU206-4:1986 This BritishStandard
2、, having been prepared under the directionof the Automobile Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 28February1986 BSI02-2000 The following BSI references relate to the work on this standard: Committee reference AUE/16 Draft for comment83/732
3、46DC ISBN 0 580 15041 0 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Automobile Standards Committee (AUE/-) to Technical Committee AUE/16, upon which the following bodies were represented: Association of Trailer Manufacturers Department
4、 of Transport (Highways) Electric Cable Makers Confederation Institution of Electronic and Radio Engineers National Caravan Council Limited Society of Motor Manufacturers and Traders Limited Amendments issued since publication Amd. No. Date of issue CommentsBSAU206-4:1986 BSI 02-2000 i Contents Page
5、 Committees responsible Inside front cover National foreword ii 1 Scope 1 2 Field of application 1 3 Reference 1 4 Definitions 1 5 General requirements 1 6 Requirements for the measuring equipment 2 Table 2 Publication referred to Inside back coverBSAU206-4:1986 ii BSI 02-2000 National foreword This
6、 BritishStandard has been prepared under the direction of the Automobile Standards Committee and is identical with ISO8093:1985 “Road vehicles Diagnostic testing of electronic systems” published by the International Organization for Standardization (ISO). Terminology and conventions. The text of the
7、 International Standard has been approved as suitable for publication as a BritishStandard without deviation. Some terminology and certain conventions are not identical with those used in BritishStandards; attention is drawn especially to the following. The comma has been used as a decimal marker. I
8、n BritishStandards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this standard, they should be read as “BritishStandard”. A British Standard does not purport to include all the necessary provisions o
9、f a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference International Standard Corresponding BritishStandard ISO4092:1984 BS AU206 Diagnostic systems for road
10、 vehicles Part1:1986 Glossary (Identical) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicat
11、ed in the amendment table on the inside front cover.BSAU206-4:1986 BSI 02-2000 1 1 Scope This International Standard defines diagnostic provisions applicable to electronic systems in road vehicles. 2 Field of application This International Standard applies to electronic systems including electronic
12、control modules, associated input sensors, output actuators and indicators. The measurement ranges specified exclude certain devices for which specific test equipment is required. It does not apply to those systems which have built-in diagnostic capabilities and do not require compatibility with off
13、-board equipment. 3 Reference ISO4092, Road vehicles Diagnostic systems for motor vehicles Vocabulary. 4 Definitions For the purpose of this International Standard, the definitions of ISO4092apply. 5 General requirements Where the functions to be tested are specified by the vehicle manufacturer, the
14、 test shall be carried out in accordance with the manufacturers instructions, which shall take into account the principles of5.1 to5.3. 5.1 Accessibility of electronic systems The electronic components of the system to be tested shall be designed so that it is possible to make the necessary connecti
15、ons to the test equipment. Relevant operational circuits shall be easily accessible and identifiable for test purposes. This may be made possible through the input and output connectors or by special connector(s). 5.2 Simulation of vehicle generated input signals If output signals have to be observe
16、d under specific operating conditions, the possibility of substituting or overriding input signals is required. 5.3 Signals in output lines Consideration should be given to the fact that, in some installations, output lines may also serve as input lines, and in that case shall conform to5.2.BSAU206-
17、4:1986 2 BSI 02-2000 6 Requirements for the measuring equipment Table 6.1 Resolution Resolution is taken to mean the smallest change of parameter value resulting in a discernible display change (which requires a minimum display of3digits). In the case of analogue displays,1/5 of the scale division v
18、alue is understood to be the resolution. 6.2 Accuracy The figures given in the column accuracy (seethe Table) allow the worst case error to be calculated. Measuring errors are caused by different factors. There are constant errors over the full measuring range and their values can be specified as a
19、percentage of the full scale value. There are also errors proportional to the measured values. No. Parameter Range Resolution (see6.1) Accuracy (see6.2) a/b Comments 1 DC voltage 0to 20V 0,01V 0,5/1,5 Input impedance: R W 100k7 0to 50V 0,1V 0,5/1,5 Cu 0,014F 2 AC voltage 0to 20V P 0,2V 5/5 Frequency
20、:0 to20kHz 0to 400V P 4V 5/5 Input impedance: RW 100k7 Cu 0,0014F Measured at ignition coil primary terminal connected to the switching element, or equivalent terminal 3 DC current 0to 1A 1mA 0,2/2,5 Shunt R u 10m7 0to 20A 20mA 0,2/2,5 Shunt R u 2m7 4 Resistance 0to1007 0,17 0,2/5 Two wire systems m
21、easuring current:u 10mA 0to10k7 107 0to1M7 1k7 5 Inductance a 0to100mH 1mH 10/5 Measuring frequency:1to5kHz 0to1H 10mH Measuring current:u 1mA 6 Frequency 0to1kHz 1Hz 0,2/1 0to100kHz 100Hz Trigger level:(3 0,5)V 7 Time 0to10ms 0,01ms 0,2/1 Trigger level: (3 0,5)V 10to100ms 0,1ms Min. retriggering ti
22、me:10ms 0,1 to1s 1ms 1 to10s 10ms 8 Pulse ratio 5 to95% 0,1% 2,5/1 Trigger level: (3 0,5)V Min. retriggering time0,5ms Frequency range 1 to100Hz 20 to80% 1to300Hz 40 to60% 1 to600Hz 5 to95% 1 to1000Hz a The values given only apply if the inductive component under test meets the following requirement
23、s: Resonant frequency of component Measuring frequency -30 Magnetic saturation current Measuring current -30 Q 1 R - L C -10 =BSAU206-4:1986 BSI 02-2000 3 For a given range and a given measured value within that range, the worst case error, E, is given by the equation where For the error coefficient
24、s, a and b, the following preferred values should be used: 0,1;0,2;0,5;1;1,5;2,5;5;7,5;10. These are the worst case values in the temperature range0 to50 C. a is the constant error coefficient; b is the proportional error coefficient; R is the full scale value; X is the measured value. E a 100 - R b
25、 100 - X + =4 blankBSAU206-4:1986 BSI 02-2000 Publication referred to Seenational foreword.BS AU206-4: 1986 ISO8093:1985 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on
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