1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS Do Not Use on New Programs. Being Replaced by GMW3091 EDS-T-5528 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 (Superceded) EDS-T-5528VEHICLE ELECTRO
2、MAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 1/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. Variant Program). It is Superceded for all future projects and replaced by GMW3091. 1. PURPOSE T
3、o test vehicle electromagnetic immunity on electromagnetic environment of low frequency band occurred when GM Daewoo (hereafter called the Company) vehicles travels near power station, substation and power transmission railroad track 2. SCOPE Applied for all vehicles manufactured by the Company. 3.
4、DEFINITION 3.1. Magnetic Pulling objects such as iron or nickel 3.2. Magnetic Field Range within Magnetic effect area 3.3. Magnetic Field Strength - H size of Magnetic Field, increased as current is getting higher. 3.4. Magnetic Force Line Line with Magnetic force through terminal pole N to S. 3.5.
5、Magnetic Flux Density Magnetic Force Line Density, indicated as B. 3.6. Harmonic Wave Electromagnetic waves with integer multiple of carrier wave not having information. 3.7. Hertz Frequency unit for 1cyc/sec 3.8. Parameter Basic items to be designated for test performance or system setting test 3.9
6、 Level - Mean value or eight from evaluating changed value by time such as power, electric field with regulated method within indicated time. 3.10. Coil Generating induction voltage in proportion to Magnetic Flux Density by time. 3.11. Octave Frequency ratio by 1:2, i.e.) 1-2MHz, 2-4MHz, 5-10MHz 3.
7、12. Resonance Frequency Generating amplitude variation during electric waves processing . 4. TEST EQUIPMENT 4.1. The equipment configuration is followed by Appendix 1. EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 2/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION:
8、3 GM DAEWOO Auto & Technology 4.2. Helmholtz coil DUT (Devices Under Test) position is set up on the base of Coil radius. 4.2.1. Record distance arrangement between test vehicle and coil for applying constant electric field in Appendix 2. 4.2.2. Electric field coil should be able to apply .BHOFUJDGJ
9、FMEJOUFOTJUZ of 60Hz to 160dBPT(100uT) on the base of Frequency and to decrease odd order Harmonic Wave by 12dB/oct ratio till magnetic field JOUFOTJUZ reaches at 60Hz to 30KH. If interval between a pair of coil is set to radius of one coil, Magnetic Flux Density in the middle of system is followed
10、by numerical formula 1 below. B = uoH = (8.991 10-7N I) / R, (Teslas) - (numerical formula 1) B: Magnetic Flux Density N: WIRE TURN times in coil R: Coil radius I: coil current Constant magnetic field JOUFOTJUZ in the middle of system is followed by numerical formula 2 below. H = (0.7155 N I) / R(A/
11、m) - (numerical formula 2) 4.3. Function Generator Generating 60Hz- Square/triangle wave signal. 4.4. Audio Power Amplifier - Amplifier with frequency band of 20Hz to 30KHz at minimum (Approx. 200W) 4.5. Current Monitor- AC voltmeter or ammeter of effective value with 30Hz to 30KHz at minimum - freq
12、uency band . 4.6. Magnetic Field Intensity Monitor Having frequency band of 1Hz to 50KHz at minimum. 4.7. Magnetic Field Probe Probe available for measuring 0 to 100uTat minimum. 4.8. Controller Controlling software necessary for test performance. 5. GENERAL REQUIREMENT 5.1. Test facilities 5.1.1. W
13、ide space available to install 2 coils generating magnetic field less than 3m-diameter, Dynamometer is required to simulate precise real car traveling condition of electric system. 5.1.2. Walker Helmholtz coil diameter used in the Company is 2m 6cm. 5.2. Test vehicle 5.2.1. 1V vehicle is required fo
14、r test. 5.2.2. Electric devices/system applied for test should be described in result sheet. 5.2.3. Mount final spec on the base of test date for electric devices/system applied for vehicle. EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 3/9 ISSUED DATE: 1999. 10. 12 REVISED DATE:
15、 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology 5.3. Test condition 5.3.1. Applied Magnetic wave: Triangle or square wave 5.3.2. Applied frequency range: 60Hz30KHz 5.3.3. Distance between vehicle and coil: 1(m) 5.3.4. Applied magnetic field JOUFOTJUZ: Max. 80uT 5.3.5. Coil position: Each 1(m) f
16、rom L/R, F/B side of vehicle 5.4. Vehicle driving condition 5.4.1. Engine Idling 5.4.2. Wiper Switch On (Intermittent Mode) 5.4.3. Blower Switch On (High Operating Mode) 5.4.4. Turn Signal Indicator Right Or Left Select 5.4.5. Head Lamp 1-stage 5.4.6. Dimmer On (Full Mode) 6. COMPONENT/SYSTEM MALFUN
17、CTION MONITORING 6.1. Check that Engine Stall is present. 6.2. Check that IP lighting is changed in vehicle. 6.3. Check malfunction of Tachometer, Speedometer instruction in Instrument. 6.4. Check that all warning lamp are lighted. 6.5. Monitor Signal change if signal check of vehicle normal conditi
18、on is required. 6.5.1. Sensor Signal Waveform EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 4/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology 6.5.2. Injector/EST (Electric Spark Timing) Signal Waveform 6.5.3. Other Signal Waveform EDS
19、T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 5/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology 7. TEST PROCEDURE Note) Tester shall avoid exposing to magnetic field for a long time and keep 0.5m away from coil in case of long exposure.
20、7.1. Test plan 7.1.1. Set up vehicle test schedule. 7.1.2. Check Electric devices/system spec mounted to vehicle (Final spec mounting, etc). 7.2. Helmholtz coil arrangement & test vehicle Set Up 7.2.1. Arrange Helmholtz coil according to Appendix 2. 7.2.2. Set up vehicle according to Appendix 4 in c
21、onstant magnetic field area. 7.2.3. Connect optic Cable terminal of applied Helmholtz coil magnetic field oppositely by facing each other. (black terminal white terminal, white terminal red terminal, connected by facing each other ) 7.2.4. Place Helmholtz coil to horizontal/ vertical axis. Note) Coi
22、l vertical axis arrangement evaluates magnetic field resistance of total vehicle and horizontal axis evaluates magnetic field resistance of engine system. 7.2.5. Prepare TPS, CPS, EST signal of ECM to be monitored by Data Monitoring System, 7.3. Test equipment Set Up 7.3.1. Set Main Power Switch of
23、EMS Test System to On . 7.3.2. Check equipment condition on pressing multimeter power S/W. The Company uses HP 34401 multimeter. 7.3.3. Check equipment condition on pressing power S/W of signal generator. The Company uses HP 8116 signal generator. EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC
24、 FIELDS PAGE: 6/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology 7.3.4. Check equipment condition on pressing power S/W of amplifier. The Company uses Techron 7570 Power Supply. 7.3.5. Turn on controller (HP Vectra) power after equipment condition check.
25、7.3.6. Select MSS-01 software on controller window screen after booting. 7.3.7. Magnetic Immunity Graph MSS-01 is displayed and test is processed by clicking Test with mouse on screen and selecting Run Post Calibration Test. 7.3.8. Adjust aUUFOVBUPS level of amplifier in obedience to Range control o
26、rder. (1) Test using frequency Range Mode is three as below. - 60Hz 1.06KHz(Range Mode 1) - 1.06KHz 15.36KHz(Range Mode 2) - 15.36KHz 30KHz(Range Mode 3) (2) Press Null Key of multimeter at aUUFOVBUPS level adjustment on performing Range Mode 3. - Adjust Range Mode 1 to Attenuator Level 5. - Adjust
27、Range Mode 2, 3 to Attenuator Level 2. (3) Assign magnetic field waveform type (triangle/square wave) to be applied in each Range Mode. 7.4. Check malfunction by monitor on applying magnetic field. Check electric devices/system malfunction details, performance deterioration. 7.5. Test equipment shou
28、ld be shielded to prevent interference from magnetic field emitted in coil. Take caution not to operate coil near large sized metals. 7.6. Other detailed test procedure is followed by magnetic field resistance test method (EDS-T-5514) of electric devices/system. 8. REFERENCES 8.1. SAE J551/17 8.2. G
29、M UTS L-6Y-5 EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 7/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology Appendix 1. Test equipment configuration EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 8/9 ISSUED DATE: 1
30、999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology Appendix 2. Helmholtz coil layout Appendix 3. Magnetic Flux Density to frequency EDS-T-5528VEHICLE ELECTROMAGNETIC IMMUNITY- MAGNETIC FIELDS PAGE: 9/9 ISSUED DATE: 1999. 10. 12 REVISED DATE: 2008. 11. 04 VERSION: 3 GM DAEWOO Auto & Technology Appendix 4. Coil layout at vehicle test
