BS-AU-265-2-1995 ISO-6518-2-1995.pdf
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1、BRITISH STANDARD AUTOMOBILE SERIES BS AU 265-2:1995 ISO 6518-2: 1995 Incorporating Amendment No. 1 Road vehicles Ignition systems Part 2: Electrical performance and function test methods ICS 43.060.50 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:08:57 GMT+
2、00:00 2006, Uncontrolled Copy, (c) BSI BS AU 265-2:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 1995 BSI 03-2000 The following BSI references relate
3、to the work on this standard: Committee reference MCE/9 Draft for comment 93/709245 DC ISBN 0 580 24945 X Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee MCE/9, Ignition equipment for spark ignition engines, upon which th
4、e following bodies were represented: Society of Motor Manufacturers and Traders Ltd. Coopted members Amendments issued since publication Amd. No.DateComments 9610September 1997 Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09
5、 02:08:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 265-2:1995 BSI 03-2000i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Ignition system description1 3Test equipment1 4Parameters to be measured or determined5 5Procedures7 Figure 1 Test circuit for igniti
6、on systems with mechanical distributor2 Figure 2 Test circuit for static ignition systems with single-ended coils3 Figure 3 Test circuit for static ignition systems with double-ended coils4 Figure 4 Examples of measurements performed on ignition systems6 Figure 5 Setting of pointed spark gap8 Figure
7、 6 Spark gap electrode requirements9 Table 1 Test conditions7 List of referencesInside back cover Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:08:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS AU 265-2:1995 ii BSI 03-2000 National foreword This British S
8、tandard has been prepared by Technical Committee MCE/9. It is identical with ISO 6518-2:1995 Road vehicles Ignition systems Part 2: Electrical performance and function test methods, including Technical Corrigendum 1, published by the International Organization for Standardization (ISO). A British St
9、andard does not purport to include all the necessary provisions of 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. Summary of pages This document comprises a front cove
10、r, an inside front cover, pages i and ii, pages 1 to 10, 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 indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank Univ
11、ersity, London South Bank University, Sat Dec 09 02:08:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 6518-2:1995(E) BSI 03-20001 1 Scope This part of ISO 6518 specifies the methods and test conditions for testing battery-supplied ignition systems for spark-ignited internal combustion engines. Be
12、cause of the difficulties in producing repeatable measurements with atmospheric spark gaps and different observers, two methods of obtaining the results necessary for calculating the system output energy are given. Method A using spark gaps for the energy measurement (test arrangement A). The output
13、 energy obtained by this method is called spark energy, Esp. Method B using a Zener diode string for the energy measurement (test arrangement B). The output energy obtained by this method is called Zener discharge energy, Ezd. This method is not suitable for systems giving alternating spark current.
14、 Method B is also recommended for the comparative testing of ignition coils and current interruption systems. 2 Ignition system description For the tests described in the following subclauses, the ignition system components used shall be as specified for the application being examined, i.e. to the o
15、riginal equipment specification. 2.1 Ignition system with mechanical distributor The following components shall be interconnected as shown in Figure 1 or in any other circuit which has been proved to be equivalent. 2.1.1 Single-ended coil which can be the conventional induction coil or an air or mag
16、netic core transformer. 2.1.2 Coil ballast resistor or resistors, if the coil being tested requires a ballast resistor, or any fixed or variable means to make the voltage and/or the current in the ignition circuit vary. 2.1.3 Distributor which distributes the ignition impulses to the spark-plugs. It
17、 may also contain means of triggering and/or timing adjustment, all of which have a proper angular interrelationship to themselves and to the engine. 2.1.4 Auxiliary switching device implicit with the system being tested such as a transistorized control unit. 2.2 Static (distributorless) ignition sy
18、stem with single-ended coils The following components shall be interconnected as shown in Figure 2 or in any other circuit which has been proved to be equivalent. 2.2.1 Coils which, depending on the system tested, may be single-ended coils as described in 2.1.1, or a multiple high-tension terminal a
19、ssembly formed by single-ended coils, or plug-top coils. 2.2.2 Auxiliary switching device implicit with the system being tested such as a transistorized control unit. 2.3 Static (distributorless) ignition system with double-ended coil(s) The following components shall be interconnected as shown in F
20、igure 3 or in any other circuit which has been proved to be equivalent. 2.3.1 Coils which, depending on the system tested, may be double-ended coils, or a multiple high-tension terminal assembly formed by double-ended coils. 2.3.2 Auxiliary switching device implicit with the system being tested such
21、 as a transistorized control unit. 3 Test equipment 3.1 Variable d.c. power supply having a 10 % to 90 % transient recovery time of not more than 50 4s over the load range encountered in use. It shall have no more than 50 mV variation in average voltage from no-load to full ignition system load and
22、no more than 100 mV peak-to-peak ripple over the same load range. This power supply may be substituted by a battery with or without a charging system. The power supply shall be positioned immediately adjacent to the system being tested. 3.2 Oscilloscope with a maximum rise time of 35 ns, with a mini
23、mum band pass of 10 MHz, shall be used (P1 and P2). The overall uncertainty of measurement including voltage and current probes (see 3.3 and 3.4) shall be less than 3 %. 3.3 Voltage probe (RD) with an input capacitance smaller than or equal to 5 pF and an input resistance of 100 M7 or greater. 3.4 C
24、urrent probe (P1) suitable for d.c. to 10 MHz. 3.5 d.c. ammeter (P3) with a maximum voltage drop of 100 mV under test conditions. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 09 02:08:57 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 6518-2:1995(E) 2 BSI 03-2000
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