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GB/T 21437.1-2008 PDF in English

GB/T 21437.1-2008 (GB/T21437.1-2008, GBT 21437.1-2008, GBT21437.1-2008)
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GB/T 21437.1-2008: PDF in English (GBT 21437.1-2008)

GB/T 21437.1-2008
Road vehicles.Electrical distrubances from conduction and coupling.Part 1. Definitions and general considerations
ICS 43.040.10
National Standards of People's Republic of China
GB/T 21437.1-2008/ISO 7637-1.2002
Electrical disturbance caused by conduction and coupling of road vehicles
Part 1. Definition and general description
(ISO 7637-1.2002, IDT)
Released on.2008-06-19
2009-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
GB/T 21437 "Electrical disturbances caused by conduction and coupling of road vehicles" consists of three parts.
--- Part 1. Definition and general description;
--- Part 2. Electrical transient conduction along the power line;
--- Part 3. Electrical transients of the conductors other than the power line through capacitive and inductive coupling.
This part is the first part of GB/T 21437.
This part is equivalent to ISO 7637-1.2002 "Electrical disturbances caused by conduction and coupling of road vehicles - Part 1. Definitions and
General Description (English version).
This section is proposed by the National Development and Reform Commission.
This part is under the jurisdiction of the National Automotive Standardization Technical Committee.
This section drafted by. China Automotive Technology Research Center.
The main drafters of this section. Xu Li, Liu Xin.
GB/T 21437.1-2008/ISO 7637-1.2002
Electrical disturbance caused by conduction and coupling of road vehicles
Part 1. Definition and general description
1 range
This part of GB/T 21437 defines the basic terms and gives general information. Basic terminology uses electricity that is conductive and coupled
Harassment related terms used in other sections.
2 Normative references
The terms of the following documents become the provisions of this part by reference in this part of GB/T 21437. Quotations with dated
All subsequent amendments (not including errata content) or revisions do not apply to this section. However, encouragement is achieved according to this section
The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this
GB/T 4365 Electrotechnical terminology electromagnetic compatibility (GB/T 4365-2003, IEC 60050 (161)..1990, IDT)
IEC 60050-151 International Electrotechnical Vocabulary - Part 151. Electromagnetic
3 Terms and definitions
The following terms and definitions established by IEC 60050-151 apply to this part of GB/T 21437.
A device or system that functions properly in its electromagnetic environment and does not constitute an unacceptable electromagnetic disturbance to anything in the environment.
[GB/T 4365]
Any electromagnetic phenomenon that may degrade the performance of the device, equipment, or system or adversely affect biological or abiotic.
Note. Electromagnetic disturbances may be electromagnetic noise, unwanted signals or changes in the medium itself.
[GB/T 4365]
Decreased performance of equipment, transmission channels, or systems caused by electromagnetic disturbances.
Note. The English words "interference" and "disturbance" are often used indiscriminately.
[GB/T 4365]
Undesirable deviations in performance between a device, device, or system from normal performance.
Note. The term "lowering" can be used for temporary or permanent failure.
[GB/T 4365]
GB/T 21437.1-2008/ISO 7637-1.2002
The ability of a device, device, or system to not degrade performance when exposed to electromagnetic disturbances.
[GB/T 4365]
In the presence of electromagnetic disturbances, the device, device or system cannot avoid the ability to degrade performance.
Note. Strong sensitivity means weak immunity.
[GB/T 4365]
a) the phenomenon that energy is emitted from the source into space in the form of electromagnetic waves;
b) Energy travels in space in the form of electromagnetic waves.
Note. The meaning of the term “electromagnetic radiation” can sometimes be extended to include electromagnetic induction.
[GB/T 4365]
Shielded room screenedroom
A mesh or sheet metal housing specifically designed to isolate the internal and external electromagnetic environment.
[GB/T 4365]
A conductive plane whose potential is used as a common reference potential.
[GB/T 4365]
Connect to the network where the power of the device under test is incoming. It provides a specified load for the measurement of disturbance voltage over a given frequency range
Impedance and isolate the device under test from the power supply.
A physical quantity or physical phenomenon that changes between two adjacent stable states whose change time is less than the time scale of interest.
Note. Transients are a general term that can be used to describe a single pulse or burst (a complex sequence of transient voltage changes).
The maximum value of the transient (pulse) amplitude.
A relatively stable transient with specific shape and time characteristics.
The pulse value rises to a duration between 10% peak and drop to 10% peak.
The time it takes for the pulse value to rise from the 10% peak to the 90% peak.
GB/T 21437.1-2008/ISO 7637-1.2002
The time it takes for the pulse to drop from a 90% peak to a 10% peak.
Transient consisting of a sequence of complex voltage changes
Note. For bursts, in addition to the parameters given in 3.13, there are also correlations with the parameters given in 3.14.1 to 3.14.4.
The time required for a series of complex transient voltage changes in a single burst.
The time between the end of a burst and the start of the next burst.
The time between the start of the first pulse of two adjacent bursts.
In a burst, the interval between the start of two repeated pulses.
A classification system that describes the performance state of a function of a device under test conditions.
The device is exposed to the electromagnetic environment and thereafter.
(Test method) A representative pulse applied to the device under test.
A level specification that tests the severity of pulse level parameters.
The interaction between the (electrical) circuits whereby energy is transferred from one loop to the other.
A circuit that transfers energy from one loop to another.
A circuit that reduces or eliminates electrical disturbances coupled from one loop to another.
A device that has a certain size and electromagnetic properties and that couples the disturbance transient common mode to the circuit under test in the absence of an electrical connection.
GB/T 21437.1-2008/ISO 7637-1.2002
Book GB/T 21437.1-2008/ISO 7637-1.2002
4 GB/T 21437 overall goals and practical applications
GB/T 21437 is concerned with the problem of transient disturbances in road vehicles and their trailers. It involves transient launches, instants along the wire
State conduction and the potential sensitivity of electronic components to electrical transients.
The test methods and procedures, test instruments and limits given in the various sections are intended to simplify the electromechanical parts caused by conduction and coupling.
The standard specification for disturbances provides a basis for agreement between the vehicle manufacturer and the component supplier to help rather than constrain.
Due to the secrecy of the prototype or a large number of different models, the immunity test of the vehicle is usually only carried out by the vehicle manufacturer. because
Laboratory test methods are used by vehicle manufacturers and equipment manufacturers to test the development and quality control of electronic components.
The tests specified in the different sections are referred to as "stand test." Some of the bench test methods require the use of a manual network that can provide different
Comparable results between laboratories. At the same time, these tests also give the basis for device and system development and can be applied in the production phase.
Protecting the system from potential harassment should be considered part of the vehicle's confirmation. Understand the correlation between laboratory testing and real vehicle testing
It is very important.
A bench test using a test pulse generator can be used to evaluate the transient immunity of the device to the power or data lines. this method
It is not possible to cover all transient forms produced in a vehicle, and the test pulses described in the different sections are only typical pulse characteristics.
Some devices are particularly sensitive to some characteristics of electrical disturbances such as pulse repetition rate, pulse width, and time relative to other signals. a standard
The test cannot be applied to all situations. For this particular, potentially sensitive device, it is necessary for the designer to design and
A deep understanding of the function to anticipate appropriate test conditions.
The device under test shall be subjected to the test applicable to the device specified in the relevant part of GB/T 21437. For those who need to reproduce the measured equipment
Tests on the use and installation location should be written into the test plan to help ensure that potentially sensitive components and systems are technically and economically
Line optimization design.
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.