1、BSI Standards Publication BS ISO 7967-10:2014 Reciprocating internal combustion engines Vocabulary of components and systems Part 10: Ignition systemsBS ISO 7967-10:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 7967-10:2014. The UK participation in its
2、 preparation was entrusted to Technical Committee MCE/14, RIC engines. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct app
3、lication. The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 80804 3 ICS 01.040.27; 27.020 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and
4、 Strategy Committee on 31 December 2014. Amendments issued since publication Date Text affectedBS ISO 7967-10:2014 ISO 2014 Reciprocating internal combustion engines Vocabulary of components and systems Part 10: Ignition systems Moteurs alternatifs combustion interne Vocabulaire des composants et de
5、s systmes Partie 10: Systmes dallumage INTERNATIONAL STANDARD ISO 7967-10 First edition 2014-12-15 Reference number ISO 7967-10:2014(E)BS ISO 7967-10:2014ISO 7967-10:2014(E)ii ISO 2014 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2014 All rights reserved. Unless otherwise specified, no part
6、of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body
7、 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 SwitzerlandBS ISO 7967-10:2014ISO 7967-10:2014(E)Contents Page Foreword iv 1 Scope . 1 2 T erms and definitions .
8、 1 2.1 Types of ignition systems 1 2.2 Conventional ignition systems 3 2.3 Electronic ignition systems 7 2.4 Computer-controlled ignition systems 8 2.5 Parameters for ignition systems 9 Bibliography .11 ISO 2014 All rights reserved iiiBS ISO 7967-10:2014ISO 7967-10:2014(E) Foreword ISO (the Internat
9、ional 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 bee
10、n 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 stand
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12、nce with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). 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 such patent rights. Details
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14、sement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information The committee respo
15、nsible for this document is ISO/TC 70, Internal combustion engines. ISO 7967 consists of the following parts, under the general title Reciprocating internal combustion engines Vocabulary of components and systems: Part 1: Structure and external covers Part 2: Main running gear Part 3: Valves, camsha
16、ft drives and actuating mechanism Part 4: Pressure charging and air/exhaust gas ducting systems Part 5: Cooling systems Part 6: Lubricating systems Part 7: Governing systems Part 8: Starting systems Part 9: Control and monitoring systems Part 10: Ignition systems Part 11: Fuel systems Part 12: Exhau
17、st emission control systemsiv ISO 2014 All rights reservedBS ISO 7967-10:2014Reciprocating internal combustion engines Vocabulary of components and systems Part 10: Ignition systems 1 Scope This part of ISO 7967 establishes a vocabulary for ignition systems of reciprocating internal combustion engin
18、es. ISO 2710-1 gives a classification of reciprocating internal combustion engines and defines basic terms and definitions of such engines and their characteristics. In this part of ISO 7967, the terms are classified as follows: a) types of ignition systems; b) conventional ignition systems; c) elec
19、tronic ignition systems; d) computer-controlled ignition systems; e) parameters for ignition systems. 2 T erms a nd definiti ons For the purposes of this document, the following terms and definitions apply. 2.1 Types of ignition systems 2.1.1 ignition system ignition device system to ignite the fuel
20、-air mixture in the cylinder 2.1.2 battery coil ignition system ignition system (2.1.1) by battery and ignition coil Note 1 to entry: See Figure 1. INTERNATIONAL ST ANDARD ISO 7967-10:2014(E) ISO 2014 All rights reserved 1BS ISO 7967-10:2014ISO 7967-10:2014(E) F i g u r e 1 T y p i c a l c o n f i g
21、 u r a t i o n o f b a t t e r y c o i l i g n i t i o n s y s t e m 2.1.3 magneto ignition system ignition system (2.1.1) by magneto (2.2.1) 2.1.4 high-tension ignition system ignition system (2.1.1) by high voltage electricity of secondary circuit of ignition coil produced by intermitting the curr
22、ent in the primary circuit 2.1.5 dual ignition system ignition system (2.1.1) with duplicate lines for redundancy 2.1.6 multi-point ignition system ignition system (2.1.1) with more than two igniters installed on one cylinder Note 1 to entry: Ignition system with two igniters is called a two-point i
23、gnition system. 2.1.7 electronic ignition system ignition system (2.1.1) with ignition timing control by electronic device or circuit 2.1.8 conventional ignition system ignition system (2.1.1) with mechanical ignition timing control by the contact breaker (2.2.12) of the distributor (2.2.9)2 ISO 201
24、4 All rights reservedBS ISO 7967-10:2014ISO 7967-10:2014(E) 2.1.9 electronic ignition system with breaker electronic ignition system (2.1.7) with contact breaker (2.2.12) 2.1.10 breakerless electronic ignition system electronic ignition system (2.1.7) without contact breaker (2.2.12) 2.1.11 computer
25、-controlled ignition system digital ignition system computer-based ignition system which is usually a part of the electronic engine control unit (ECU) Note 1 to entry: ECU consists of a central control unit (CPU) or a microprocessor, random access memory (RAM), read only memory (ROM), and input/outp
26、ut interfaces. Based on information from input sensors (engine air flow, coolant temperature, crank position, throttle position, etc.), ECU determines optimum settings for the output actuators of fuel injection, ignition timing, idle speed, etc 2.1.12 micro-pilot ignition system ignition system (2.1
27、.1) for gas engines, in which ignition takes place by the flame made in the small sub- combustion chamber (pre-chamber) provided on the cylinder head 2.2 Conventional ignition systems 2.2.1 magneto electric generator for ignition using permanent magnet 2.2.2 two-point ignition magneto magneto (2.2.1
28、) for two-point ignition which has one rotor and two sets of electric circuits 2.2.3 f l y w he e l m a g ne t o magneto (2.2.1) with the rotor which also works as a flywheel for the engine 2.2.4 starting vibrator electromagnetic vibrator which supplies intermittent electric current starting from th
29、e battery to the primary circuit of the magneto (2.2.1) directly connected with the engine to assist ignition 2.2.5 permanent magnet circuit magnetic circuit which includes the components such as permanent magnets and armatures 2.2.6 ignition switch switch which opens and closes the primary circuit
30、of the ignition system (2.1.1) 2.2.7 earth switch stop switch switch to short-circuit the primary circuit of the magneto (2.2.1) to shut-down the engine ISO 2014 All rights reserved 3BS ISO 7967-10:2014ISO 7967-10:2014(E) 2.2.8 ignition coil ignition armature coil which produces high voltage for ign
31、ition in the battery coil ignition system (2.1.2) or the magneto ignition system (2.1.3) Note 1 to entry: See Figure 2. Figure 2 Typical ignition coil 2.2.9 distributor device which distributes high voltage electricity for ignition to cylinders of multi-cylinder engine in the proper order Note 1 to
32、entry: See Figure 3.4 ISO 2014 All rights reservedBS ISO 7967-10:2014ISO 7967-10:2014(E) Figure 3 Typical construction of distributor 2.2.10 distributor cap distributor cover part of distributor (2.2.9) which has the arrangement of terminals for proper distribution of high voltage electricity for ig
33、nition 2.2.11 distributor rotor distributor arm rotating part of distributor (2.2.9) which distributes high voltage electricity to the terminals of distributor cap (2.2.10) 2.2.12 contact breaker device which opens and closes the primary circuit of the distributor (2.2.9) 2.2.13 breaker points conta
34、ct points electric terminal in the distributor (2.2.9) for opening and closing of primary circuit ISO 2014 All rights reserved 5BS ISO 7967-10:2014ISO 7967-10:2014(E) 2.2.14 timing cam distributor cam contact breaker cam cam which controls a contact breaker lever 2.2.15 cam type ignition timing adva
35、ncer device for ignition timing advance (2.5.3) by varying the relative angle between axis of distributor rotor (2.2.11) and timing cam (2.2.14) 2.2.16 shaft timing advancer timing advance system which varies the relative angle between axes of magneto (2.2.1) and engine shaft 2.2.17 auto-timer autom
36、atic spark advance ignition timing advancer which works automatically according to the engine speed and power 2.2.18 centrifugal timer centrifugal control centrifugal advance auto-timer (2.2.17) working by centrifugal force 2.2.19 vacuum control vacuum advance auto-timer (2.2.17) working by intake a
37、ir pressure 2.2.20 multi-contact distributor distributor (2.2.9) with more than two sets of contact breakers (2.2.12) which are switched depending on operating condition of the engine 2.2.21 spark-plug part which ignites fuel-air mixture with the spark generated between electrodes by high voltage No
38、te 1 to entry: See Figure 4.6 ISO 2014 All rights reservedBS ISO 7967-10:2014ISO 7967-10:2014(E) Figure 4 Cut-out view of spark-plug 2.2.22 spark-gap gap between two electrodes of the spark-plug (2.2.21) 2.2.23 cold type spark-plug spark-plug (2.2.21) resistible to pre-ignition with high heat value
39、(2.5.4) 2.2.24 hot type spark-plug spark-plug (2.2.21) with low heat value (2.5.4) and easily heated 2.2.25 high-tension cord high-tension cable cable which connects high voltage terminal of ignition system (2.1.1) and spark-plug (2.2.21) 2.3 Electronic ignition systems 2.3.1 transistor ignitor syst
40、em ignition system (2.1.1) using transistors ISO 2014 All rights reserved 7BS ISO 7967-10:2014ISO 7967-10:2014(E) 2.3.1.1 full-transistor ignitor transistor ignitor which initiates the primary electric current by electric signals instead of contact breaker (2.2.12) 2.3.1.2 semi-transistor ignitor tr
41、ansistor ignitor using contact breaker signal for initiating the primary electric current 2.3.2 magneto electronic ignition system ignition system (2.1.1) in which magneto (2.2.1) is used to obtain high voltage electric current 2.3.3 condenser discharge ignition system CDI system ignition system (2.
42、1.1) which obtains high voltage in the secondary coil by emitting the charge saved in the condenser into the primary coil 2.3.4 Hall type (electronic) ignition system ignition system (2.1.1) in which ignition timing signal is produced by “Hall effect” switch Note 1 to entry: When magnetic field is a
43、pplied to the conductor material with passing current in one direction, at a right angle to its surface, small voltage is generated in the material. This effect is called “Hall effect” after the discoverer of this phenomenon. 2.3.5 photoelectric ignition system ignition system (2.1.1) in which an in
44、frared sensor triggers primary current (2.5.13)when a rotor blade blocks the light path 2.3.6 oscillating electronic ignition system ignition system (2.1.1) in which ignition timing is produced by eddy current disruption of two coil sensors caused by magnet passing by 2.4 Computer-controlled ignitio
45、n systems 2.4.1 direct ignition system ignition system (2.1.1) in which the coil-on-plug is used and ignition is controlled electronically by ECU 2.4.2 crankshaft position sensor electronic device used to monitor the position of rotational speed of the crankshaft 2.4.3 camshaft position sensor elect
46、ronic device used to monitor the position of the camshaft 2.4.4 single spark ignition coil coil-on-plug which produces one ignition spark 2.4.5 dual spark ignition coil coil-on-plug which produces two sparks for two cylinders8 ISO 2014 All rights reservedBS ISO 7967-10:2014ISO 7967-10:2014(E) 2.5 Pa
47、rameters for ignition systems 2.5.1 dwell angle rotation angle during the breaker point (2.2.13) is closing 2.5.2 minimum advance for best torque MTB latest ignition timing for maximum engine torque at the same operating condition 2.5.3 ignition timing advance to advance the ignition timing from the
48、 reference or the rotation angle of crankshaft equivalent to the advance in time 2.5.4 heat value (of spark-plug) numerical value indicating the characteristics against pre-ignition 2.5.5 heat rating temperature range of the centre electrode of spark-plug (2.2.21), usable without malfunction such as
49、 pre-ignition 2.5.6 cold fouling rating criterion of the ability of a spark-plug (2.2.21) to resist fouling rate by products of combustion, and for self-cleaning under normal conditions SOURCE: ISO 6518-1:2002, 6.5 2.5.7 supply voltage d.c. voltage at the input of the system SOURCE: ISO 6518-1:2002, 5.30 2.5.8 required spark-plug voltage voltage required at the spark-plug terminal necessary to fire the spark-plug (2.2.21) SOURCE: ISO 6518-1:2002, 5.5 2.5.9 minimum available voltage mi
