GB/T 33012.1-2016 PDF in English
GB/T 33012.1-2016 (GB/T33012.1-2016, GBT 33012.1-2016, GBT33012.1-2016)
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Road vehicles -- Vehicle test methods for electrical disturbances from narrowband radiated electromagnetic energy -- Part 1: General
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Standards related to (historical): GB/T 33012.1-2016
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GB/T 33012.1-2016: PDF in English (GBT 33012.1-2016) GB/T 33012.1-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
T 36
Road vehicles - Vehicle test methods for electrical
disturbances from narrowband radiated electromagnetic
energy - Part 1. General
(ISO 11451-1.2005 + A1.2008, Road vehicles - Vehicle test methods for
electrical disturbances from narrowband radiated electromagnetic energy -
Part 1. General principles and terminology, MOD)
ISSUED ON. OCTOBER 13, 2016
IMPLEMENTED ON. MAY 1, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Test conditions ... 6
5 Test signal quality ... 9
6 Test procedures ... 10
Annex A (normative) Function performance status classification (FPSC) ... 13
Annex B (informative) Equal peak test levels ... 16
Foreword
GB/T 33012 “Road vehicles - Vehicle test methods for electrical disturbances from
narrowband radiated electromagnetic energy” consists of four parts.
- Part 1. General;
- Part 2. Off-vehicle radiation sources;
- Part 3. On-board transmitter simulation;
- Part 4. Bulk current injection (BCI).
This Part is part 1 of GB/T 33012.
This Part is drafted in accordance with the rules given in GB/T 1.1-2009.
This Part uses the re-drafting method to amend and adopt ISO 11451-1.2005 “Road
vehicles - Vehicle test methods for electrical disturbances from narrowband radiated
electromagnetic energy - Part 1. General principles and terminology” and ISO 11451-
1 AMD 1.2008.
Technical differences between this Part and ISO 11451-1.2005 and the causes are as
follows.
- Clause 1 is normatively prepared according to the specifications of GB/T 1.1-2009;
- ADD the clause of normative references and include in a number of national
standards used in the text according to the specifications of GB/T 1.1-2009;
- DELETE the terms and definitions in the original international standard for they
are repeated in GB/T 29259, and it is modified to reference to national standards
to avoid duplication of definitions;
- INCLUDE the contents of Clause 3 of the original international standard IN 4.1;
INCLUDE the contents of 4.1 of the original standard IN 4.2; MERGE Clause 3
and Clause 4 of the original standard to maintain correspondence of the structure
with the original standard;
- The original international standard has an Amendment in 2008, which made a
great adjustment to Annex A “Functional performance status classification
(FPSC)”; taking into account that the understanding on and requirements for
functional performance status classification (FPSC) in current international
standards are more similar to the new version, so Annex A of this Part adopts
Amendment of 2008;
- Because the principle of functional performance status classification (FPSC) is
Road vehicles - Vehicle test methods for electrical
disturbances from narrowband radiated
electromagnetic energy - Part 1. General
1 Scope
This Part of GB/T 33012 specifies the basic test conditions, test equipment and test
procedures for vehicle test methods for electrical disturbances from narrowband
radiated electromagnetic energy.
This Part applies to M, N and O vehicles (not limited to vehicle power systems such as
spark-ignition engines, diesel engines, motors).
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the dated edition cited applies. For undated
references, the latest edition of the referenced document (including all amendments)
applies.
GB/T 29259 Road vehicle - Electromagnetic compatibility terminology
GB/T 33012.2 Road vehicles - Vehicle test methods for electrical disturbances from
narrowband radiated electromagnetic energy - Part 2. Off-vehicle radiation sources
(GB/T 33012.2-2016, ISO 11451-2.2005, MOD)
GB/T 33012.3 Road vehicles - Vehicle test methods for electrical disturbances from
narrowband radiated electromagnetic energy - Part 3. On-board transmitter
simulation (GB/T 33012.3-2016, ISO 11451-3.2007, MOD)
GB/T 33012.4 Road vehicles - Vehicle test methods for electrical disturbances from
narrowband radiated electromagnetic energy - Part 4. Bulk current injection (BCI)
(GB/T 33012.4-2016, ISO 11451-4.2006, MOD)
3 Terms and definitions
For the purpose of this document, terms and definitions defined in GB/T 29259 apply.
Unless otherwise specified, the following test conditions apply to all parts of GB/T
33012.
- test temperature;
- test voltage;
- modulation method;
- residence time;
- frequency step size;
- definition of test severity;
- test signal quality.
NOTE. Using the same test conditions with the corresponding part of GB/T 33012 may get a
better correlation.
Unless otherwise specified, the tolerances of the parameters used are as follows.
- duration and distance. ± 10 %;
- resistance and impedance. ± 10 %;
- power meter. ± 1 dB;
- field strength probe. ± 3 dB.
4.3 Test temperature
During the test, the vehicle will generate heat in the laboratory, it shall be cooled to
prevent the engine from overheating.
During the test, the ambient temperature is (23 ± 5) °C. If the supply and demand
parties agree on the use of other test temperatures, they shall be stated in the test
report.
4.4 Test voltage
For tests that require the vehicle's engine to be in operation, the vehicle charging
system shall function properly.
For tests that do not require the vehicle's engine to be in operation, if the test plan has
no other requirements, the 12 V system battery voltage shall be kept above 12 V and
the 24 V system battery voltage shall be kept above 24 V.
4.5 Modulation method
6 Test procedures
6.1 Test Plan
The test plan shall be developed prior to the test, including the following.
- vehicle test severity;
- vehicle/component monitoring conditions;
- frequency band;
- test method;
- vehicle operation mode;
- vehicle acceptance criteria;
- polarization method;
- vehicle direction;
- antenna location;
- contents of the test report;
- other special instructions and differences relative to standard tests.
NOTE. Some of these items may not apply to all test methods.
6.2 Test methods
6.2.1 General
Substitution method and closed-loop method apply to the corresponding part of GB/T
33012.
6.2.2 Substitution method
Use forward power as the reference parameter for calibration and test. The specific
test level (electric field, current, voltage or power) shall be calibrated before the test.
Test the vehicle with a test signal in accordance with the predetermined calibration
values in the test plan. Both the forward power and the reflected power during
calibration and test shall be recorded.
The forward power required for the test signal can be calculated according to the
calibrated value and the following equation.
Annex A
(normative)
Function performance status classification (FPSC)
A.1 General
This annex describes the functional performance statue of a device, that is, how a
particular device works as expected under the influence of a particular test signal,
giving a general definition method for the qualification situation of the vehicle in and
after the narrowband radiated electromagnetic disturbance test. The definition method
shall be used in conjunction with the relevant part of GB/T 33012.
The test shall be carried out in the actual automotive electromagnetic environment
specified in the relevant part of GB/T 33012, which will help the standard users to
optimize the design of potential sensitive components and systems.
This annex does not specify specific parameters for the severity of the test signal,
which are determined by the vehicle manufacturer and the component supplier.
A.2 Principle of functional performance status classification (FPSC)
Functional performance status classification (FPSC) takes into account the following
factors.
- A DUT may include one or more functions (e.g., an electronic control unit can
control the front wiper, pedal lamp and passing beam lamp);
- One function can have one or more operation modes (e.g., passing beam lamp
ON, passing beam lamp OFF, pedal lamp ON, pedal lamp OFF);
- One operation mode can have several statues (I, II, III, IV) (e.g., passing beam
lamp ON operation mode, passing beam lamp ON during the application of the
disturbance, and the passing beam lamp can automatically restore after the
disturbance is applied. The situation is regarded as state II).
FPSC method is based on the following principles.
When a DUT includes multiple functions, the functional performance status
classification applies to each individual function;
One function can have a simple ON-OFF operation mode or a complex operation mode
similar to data bus communication.
A.3 Element of FPSC
Annex B
(informative)
Equal peak test levels
B.1 General
This annex giv...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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