GB 19755-2016 PDF English
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| GB 19755-2016 | English | 145 |
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Technical requirements and measurement methods for emissions from light-duty hybrid electric vehicles
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| GB/T 19755-2005 | English | 799 |
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2005.05.23
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GB 19755-2016: Technical requirements and measurement methods for emissions from light-duty hybrid electric vehicles
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Replacing GB/T 19755-2005
Technical requirements and measurement methods
for emissions from light-duty hybrid electric vehicles
Issued on. AUGUST 22, 2016
Implemented on. SEPTEMBER 1, 2016
Issued by. Ministry of Environmental Protection;
General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope of application... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Classification of hybrid electric vehicles... 8
5 Requirements and tests... 9
6 Test description... 10
7 Model expansion... 21
8 Production consistency inspection... 21
9 In-use compliance... 21
Annex A (normative) Type test related information... 23
Annex B (normative) Type test results... 41
Annex C (informative) Schematic diagram of state of charge of energy storage
device of off-board charging vehicles in type I test... 49
Annex D (informative) Net power and maximum 30 minutes power test for
electric drive system... 51
1 Scope of application
This Standard specifies the measurement methods and technical requirements for
emission pollutants, double idle speed emission pollutants, crankcase pollutants,
evaporative pollutants, durability of pollutant control device and on-board diagnostics
(OBD) system of light-duty hybrid electric vehicles with spark-ignition engines at room
temperature and low temperature.
This Standard specifies the measurement methods and technical requirements for
emission pollutants, free acceleration emission smoke, pollutant control device and
on-board diagnostics (OBD) system of light-duty hybrid electric vehicles with
compression-ignition engines at room temperature.
This Standard specifies the inspection and determination methods for the type test,
production consistency and in-use compliance of light-duty hybrid electric vehicles.
This Standard applies to light-duty hybrid electric vehicles with a maximum design
speed greater than or equal to 50 km/h and installed with spark-ignition engines or
compression-ignition engines. For vehicles with only parking idle speed stop function
as described in QC/T 837, their emission measurement is carried out according to the
requirements of conventional vehicles and does not fall within the scope of this
Standard.
2 Normative references
The following standards contain provisions which, through reference in this Standard,
constitute provisions of this Standard. For undated references, the valid version
applies to this Standard.
GB 3847-2005 Limits and measurement methods for exhaust smoke from C.I.E.
(Compression Ignition Engine) and vehicle equipped with C.I.E.
GB 18352 Limits and measurement methods for emissions from light-duty vehicles(1)
(1) GB 18352 refers to GB 18352.3-2005 “Limits and measurement methods for emissions from
light-duty vehicles (China stage III, IV)”, GB 18352.5-2013“Limits and measurement methods
for emissions from light-duty vehicles (China stage V)” and its latest valid version.
GB/T 19596-2004 Terminology of electric vehicles
GB/T 19753 Test methods for energy consumption of light-duty hybrid electric
vehicles
3 Terms and definitions
For the purpose of this Standard, the following terms and definitions and those
established in GB 18352 and GB/T 19596-2004 apply.
3.1
hybrid electric vehicle
Vehicles at least capable of obtaining power form the following two types of on-board
stored energy.
3.2
light-duty hybrid electric vehicle
Hybrid electric vehicles within the scope of GB 18352.
3.3
type test
Refers to the stereotypes test, after the design of a hybrid electric vehicle model is
completed, to the trial new product to verify whether the product can meet the technical
requirements of this Standard.
3.4
energy storage device
Devices, mounted on hybrid electric vehicles, capable of storing electrical energy,
including all power batteries, supercapacitors and flywheel batteries or other
combinations.
3.5
deterioration factors
Deterioration factors determined according to GB 18352.
3.6
electricity balance
In a test cycle, the integrated value with time of the current measured value of the
energy storage device of hybrid electric vehicles, expressed in Q, the unit is Ah. When
the electricity balance is greater than zero, the energy storage device discharges;
4 Classification of hybrid electric vehicles
In this Standard, hybrid electric vehicles are divided into four categories, as shown in
Table 1, according to whether the energy storage device needs off-vehicle charging
and whether the vehicle has the function of manual selection of driving mode.
5 Requirements and tests
5.1 General requirements
5.1.1 Type test, production consistency inspection and in-use compliance inspection
of hybrid electric vehicles shall meet the requirements of the corresponding stage in
GB18352.
5.1.2 Pollutant emissions of hybrid electric vehicles shall meet the limit requirements
of the corresponding stage in GB 18352.
5.2 Type test items
Test items shall be carried out in the type test of different types of vehicles are as
shown in Table 2.
6 Test description
6.1 Type I test (air pollutant emission test at normal temperature after cold start)
6.1.1 Off-board vehicle charging (OVC) hybrid electric vehicles without function
of manual selection of driving mode
The test shall be carried out under the following conditions.
6.1.1.1 Condition A test
6.1.1.1.2 Vehicle pretreatment
6.1.1.1.2.1 For hybrid electric vehicles with compression-ignition engines, continuously
operate 3 two-type (suburban) cycles of type I test specified in GB 18352 according to
the requirements of 6.1.1.1.5.3 as pretreatment.
6.1.1.1.4 Charging of energy storage device
During vehicle exposure, the energy storage device shall be charged as follows to
achieve the maximum state of charge.
6.1.1.1.4.1 Charging requirements
6.1.1.1.5 Test procedure
The vehicle is normally started and the first cycle begins when the vehicle enters the
start-up state. The manufacturer shall carry out the test as specified in 6.1.1.1.5.1
(Option 1) or as specified in 6.1.1.1.5.2 (Option 2).
6.1.1.1.5.1 Option 1 (single cycle). Sampling shall be carried out according to the
specifications of GB 18352.Sampling shall be started before or during the start of the
vehicle. Sampling shall be stopped at the end of the last idle speed condition of the
two-type suburb cycle.
6.1.1.1.5.2 Option 2 (multiple cycles). Sampling shall be started before or during the
start of the vehicle. A number of (N times) test cycles shall be repeated continuously.
Stop sampling at the end of the last idle speed period of the first suburb (2-type) cycle
when the energy storage device reaches the minimum state of charge (see 3.7).
Between two cycles, a hot exposure process of no more than 10 minutes is allowed,
and the power system during the hot exposure shall be in the off state.
6.1.1.1.5.3 Use of transmission. The vehicle operates according to the specifications
of GB 18352.If the manufacturer has special requirements for gear shift, type I test’s
operation cycle is not applicable for the requirements of the vehicle’s gear shift point,
it may operate according to the requirements for the use of transmission in GB 18352,
combined with the manufacturer’s product instructions and operating instructions of
gearbox.
6.1.1.2 Condition B test
6.1.1.2.1 Vehicle pretreatment
The vehicle is pretreated as specified in 6.1.1.1.2.
6.1.1.2.3 Vehicle preset
Before the test, the vehicle is preset (vehicle exposure) in the room with the
temperature maintained at 293 K ~ 303 K (20 ~ 30 °C) before the test. The preset time
is at least 6 h until the temperature of engine’s lubricating oil and coolant reaches within
± 2 K of room temperature.
If the manufacturer makes a request, the test shall be carried out within 6 hours to 30
hours after the vehicle is running at the normal temperature.
6.1.1.2.4 Test procedure
6.1.1.2.4.1 The vehicle is normally started and the test shall be carried out according
to the specifications of Annex C of GB 18352.
6.1.1.2.4.2 Sampling is carried out according to the specifications of GB 18352.
6.1.1.2.4.3 Carry out according to the specifications of 6.1.1.1.5.3.
6.1.1.3 Test results
6.1.1.3.1 When tested according to 6.1.1.1.5.1, the weighted-mass emission of the
pollutant is calculated according to equation (2).
6.1.1.3.2 When tested according to 6.1.1.1.5.2, the weighted-mass emission of the
pollutant is calculated according to equation (3)
6.1.2 Off-board vehicle charging (OVC) hybrid electric vehicles with function of
manual selection of driving mode
The test shall be carried out under the following conditions.
6.1.2.1 Condition A test
6.1.2.1.1 If the vehicle’s electric range (measured according to GB/T 19753) is longer
than a complete test cycle, the type I test may be carried out in electric mode at the
manufacturer’s request. In this case, the vehicle pretreatment in accordance with
6.1.2.1.3 may be omitted.
6.1.2.2 Condition B test
6.1.2.2.1 Vehicle pretreatment
The vehicle is pretreated according to the specifications of 6.1.1.2.1.
6.1.2.2.2 Energy storage device
The energy storage device of the vehicle shall discharge according to the
specifications of 6.1.2.1.2.
6.1.2.3 Test results
According to the specifications of 6.1.1.3, calculate the weighted-mass emission Mi
each pollutant of vehicles.
The emission measurement results (MAi, MBi, Mi) shall be recorded separately in the
test report. The emission measurement results shall meet the corresponding emission
limit requirements specified in GB18352.
6.1.3 Not off-board vehicle charging (NOVC) hybrid electric vehicles without
manual selection of driving mode
6.1.3.1 According to the manufacturer’s recommendations, the electrical energy state
of the vehicle’s energy storage device is set to ensure that the vehicle meet the
specifications of 6.1.3.3 during the emission test.
6.1.3.2 Test according to GB 18352.
6.1.4 Not off-board vehicle charging (NOVC) hybrid electric vehicles with manual
selection of driving mode
6.2 Type II test (double idle speed test or free acceleration smoke test)
6.2.1 Double idle speed test (measure CO and HC of double idle speed and λ
value of high idle speed (excess air coefficient))
The double idle speed test shall be carried out according to the specifications of Annex
D of GB 18352, using the engine mode. The manufacturer shall provide a working
mode in which the test can be carried out.
6.2.2 Free acceleration smoke test
The vehicle in the VI stage shall be carried out with the free acceleration smoke test
according to the specifications of Annex D of GB 3847-2005; the vehicle after the V
stage shall be carried out with the free acceleration smoke test according to the
relevant specifications of GB 18352.
If there are special requirements for hybrid electric vehicles when carrying out this test,
then these requirements shall be described in detail in product instructions. In addition
to the device provided by the vehicle itself, this special measurement requires no other
device.
6.6 Type VI test (CO and HC emission test at low temperature after cold start)
It shall test according to the specifications of type VI test in Annex H of GB 18352 and
shall meet the following requirements.
6.6.1 For off-board vehicle charging hybrid electric vehicles (OVC), the measurement
of emission pollutants shall be carried out under the same conditions as those
specified in condition B of type I test in 6.1.1.1 and 6.1.2.2, except for 6.1.1.2.5.
6.6.2 For not off-board vehicle charging hybrid electric vehicles (NOVC), the
measurement of emission pollutants shall be carried out under the same conditions as
those specified in type I test, except for 6.1.3.3.
6.7 On-board diagnostics (OBD) system test
It shall test according to the relevant specifications of OBD in Annex I of GB 18352 and
shall meet the following requirements.
7 Model expansion
The model expansion of hybrid electric vehicles shall be carried out according to the
relevant specifications of GB 18352.
8 Production consistency inspection
The production consistency inspection of hybrid electric vehicles shall be carried out
according to the relevant specifications of GB 18352 and shall meet the following
requirements.
8.1 In the case of type I test, the test shall be carried out under the conditions specified
in this Standard.
8.2 In the case of type III test, the test shall be carried out according to the
specifications of 6.3 of this Standard.
8.3 In the case of type IV test, the test shall be carried out according to the
specifications of 6.4 of this Standard.
8.4 In the case of OBD test, the test shall be carried out according to the specifications
of 6.7 of this Standard.
9 In-use compliance
The in-use compliance of hybrid electric vehicles shall comply with the relevant
specifications of GB 18352 and shall meet the following requirements.
9.1 In the case of type I test, the test shall be carried out under the conditions specified
in this Standard.
specifications of 6.4 of this Standard.
9.3 In the case of OBD test, the test shall be carried out according to the specifications
of 6.7 of this Standard.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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