emc-7637
emc-7637
with the vehicle's operation and safety become increasingly dependent on the complexity of inligent vehicle control systems, along with the popularity of automotive inligent technology, more and more electronic products have been used by automotive manufacturers, such as automotive electronic braking systems, electronic control of transmission, electronically controlled steering systems, automotive communications systems. corresponding to these electrical and electronic components, electromagnetic compatibility technical requirements put forward in order to increase vehicle safety and reliability, and electromagnetic immunity. electromagnetic compatibility technology and vehicle emission technology, automotive safety technologies for the automotive technologies. the new european automotive emc directive 2004/104/ec on july 1, 2006 formally promulgated and implemented the directive on the parts and components increased by transient immunity test requirements, reference standards iso 7637-2, -3.
emc7637 interference testing equipment in accordance with the development of the international organization for standardization iso7637-2: 2004 and gb/t21437-2008 standards to meet the latest testing requirements for the assessment of electromagnetic compatibility vehicle equipment.
micro-pulse interference auto simulator （grp1-2a） specialized electronic equipment for vehicle immunity test, waveform fully meet the iso-7637-2 （2004 version） standards requirements of p1 and p2a pulse.
pulse p1 analog shutdown as a result of inductive load （such as windshield wiper motors） have a pulse on other auto electronic products in parallel the impact of voltage, pulse p2a closure occurred in the case of ignition switch, load switch waveforms generated by open-circuit, but also can occur pull-out or fuse in the fuse circumstances。
p1,p2a technical parameters
us pulse amplitude
-660v....0v± 10 % +30v.....+60v+10 %
ri generator resistance
2ω,4ω,10ω,30ω,50ω
td pulse width
50μs,200μs,300μs,500μs,1ms,2ms ±10%
tr pulse the forefront of the time
0.5-1μs（2ω）,0.5-1μs（10ω）,1.5-3μs（50ω） + 0% / - 50%
tl pulse interval
0.2--99.9s（0.1s/步 0.1s/step）
t2 dc power decay time
200ms ± 10 %
t3 surge delay
not less than 100μs
experimental views
0......9999
built-in working power supply
ac220v±10% 50/60hz
size mm
460*520*310
weight
18kg
automotive transient simulator （grp3） pulse interference specialized electronic equipment for vehicle immunity test, waveform fully meet the iso-7637-2 （2004 edition） standard requirements p3 pulse. pulse p3a automotive electronic systems of all kinds of switches, following the electrical and fuse in the open or closed process, as a result of arc generated by the rapid pulse group （eft）
p3b pulse was particularly prevalent in the electric doors and windows of the drive unit, speakers, or in the central control door lock system, to simulate the process of switching transients generated interference.
p3a,p3b technical parameters
us pulse amplitude （open）
30--300v（1v/step） ± 10%
ri generator resistance
50ω（±20%）
td pulse duration
150ns±50ns
tr pulse front
5ns±1.5ns
t5 burst interval
0.09s--99.99s（0.01s/step）
t4 burst duration
1ms--100ms（1ms/step）
t1 the frequency of repetition interval
0.5khz--300khz（0.5khz/step）
pulse polarity
positive or negative
built-in coupling /decoupling network
2 （max.100a）
built-in working power supply
ac220v±10% 50/60hz
size （mm）
460*520*310
weight
22kg
automotive voltage drop simulation generator （grp2b-p4） specialized electronic equipment for vehicle immunity test, waveform fully meet the iso-7637-2 （2004 version） p2b standards and requirements p4 pulse. pulse p2b is the motor running circumstances, ignition switch off arising from a sudden impulse., pulse p4 is the access to large load （such as air-conditioning to open） or to the internal combustion engine to start the electrical power supply system caused by changes in voltage. built-33v 7 programmable dc power supply.
p2b,p4 technical parameters
p2b
12v system
24v system
ua test voltage range
0-13.5v±0.5v
0-27v±1v
us pulse voltage
10v
20v
td pulse duration
0.2---2s（0.1s/step）
t12 voltage dip time
1----1.5ms
tr pulse rise time
1ms±0.5 ms
t6 voltage delay time
1ms±0.5 ms
source impedance
less than 10mω
n allow repetition
1---99 /times
imax maximum load current
27a
54a
p4
12v system
24v system
ub voltage stability
12v±0.2v
24v±0.4v
us the first voltage dip magnitude
6v--7v（0.1v/step）
12v---16v（0.1v/step）
ua the second voltage dip magnitude
2.5v---6v（|ua|≤|us|）
5v---12v（|ua|≤|us|）
t7 the first time to drop voltage stability
10ms--45ms（5ms/step）
5ms---100ms（5ms/step）
t8 from the first drop to the second drop
over the rise time
≤50ms
t9 the second drop-voltage stabilization time
0.5s---20s（0.5s/step）
t10 since the stability of voltage to the first or
excessive voltage drop and fall time
5ms
10ms
t11 since the second drop to the stability of power excessive pressure voltage recovery time
5ms---100ms（ 5ms/step）
source impedance
≤10mω
n allow repetition
1---99times
load current
1
30a
built-in working power supply
ac220v±10% 50/60hz
size （mm）
460*520*310
weight
25kg
protection
with over-temperature protection. over-current protection. over-voltage protection function
car load of high-energy generator throw （grp-p5b） specialized electronic equipment for vehicle immunity test, waveform fully meet the iso-7637-2 （2004 version） p standards and requirements p5b pulse, pulse p5 automotive electronic systems most commonly see, but also against a relatively large electromagnetic phenomenon, which causes the generator to the battery charging process of a sudden disconnect the battery （such as the fuse fuse, maintenance suddenly disconnect the battery, etc.） the effect on other electronic equipment voltage pulse, p5b more than p diode clamp.
p,p5b technical parameters
p
12v system
24v system
us pulse amplitude
40v--200v ± 10 %
100v--200v ± 10 %
ri generator resistance
0.5ω,1ω,2ω,4ω,6ω
1ω,2ω,4ω, 6ω,8ω
tr pulse front
5ms---10ms
5ms--10ms
td waveform width
50ms - 500ms
t1 pulse interval
1---5min
n allow repetition
1---99times
p5b
12v system
24v system
us pulse amplitude
40v--200v
100v--200v
us pulse voltage limiter
20v--200v
20v---200v
ri generator resistance
0.5ω,1ω,2ω,4ω,6ω,8ω
1ω,2ω,4ω, 6ω,8ω
tr pulse rise time
5ms---10ms
5ms---10ms
td waveform width
50ms----500ms
t1 pulse interval
1---5min
n allow repetition
1---99次times
power supply
ac220v±10% 50/60hz
size （mm）
460*520*310
weight
約23kg
in addition to these five kinds of typical test waveform, there are more demands from car manufacturers special waveform. we can custom test modules, meet the needs of different enterprise standard auto manufacturers. reference industry emc test results, electrostatic discharge testing and transient immunity tests related to automotive safety, and the high probability of electromagnetic phenomena, conduction harassment testing requirements to achieve automotive electronics products, the majority can test through radiation harassment. hence, we propose a conditional first of all vendors can conduction harassment test systems, electrostatic discharge test system and the iso 7637 test systems.
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電磁兼容配置方案
一、電磁兼容知識大匯總
二、靜電放電抗干擾試驗系統(tǒng)【iec61000-4-2 】
三、射頻磁場輻射抗繞度試驗【iec61000-4-3 】
四、電快速瞬變脈沖群的抗干擾度試驗【iec61000-4-4 】
五、雷擊浪涌抗干擾度試驗【iec61000-4-5 】
六、射頻傳導抗擾度試驗【iec61000-4-6 】
七、工頻磁場抗擾度試驗【iec61000-4-8 】
八、脈沖磁場抗擾度試驗【iec61000-4-9 】
九、電壓跌落、短時中斷和漸變抗擾度試驗【iec61000-4-11】
十、諧波電流、電壓波動和閃爍系統(tǒng)【iec61000-3-2，iec61000-3-3】
十一、衰減震蕩&振鈴波抗擾度試驗【iec61000-4-12】
十二、汽車電子沿電源線電瞬態(tài)傳導抗擾度試驗【iso7637-2，gb/t21437】
十三、電磁兼容屏蔽室建設(shè)方案【en50147-1, gb12190】
十四、傳導發(fā)射測試系統(tǒng)【cispr22】
十五、輻射發(fā)射測試系統(tǒng)【cispr22】
十六、喀嚦聲干擾測試系統(tǒng)【cispr22】