GB/T 40032-2021 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 40032-2021 | English | 195 |
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Safety requirements of battery swap for electric vehicles
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GB/T 40032-2021: Safety requirements of battery swap for electric vehicles---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT40032-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 40
Safety requirements of battery swap for electric
vehicles
Issued on. APRIL 30, 2021
Implemented on. NOVEMBER 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword... 3
Introduction... 4
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 5
4 Safety requirements... 7
4.1 General requirements... 7
4.2 Vehicle requirements... 8
4.3 Component requirements... 9
5 Test methods... 10
5.1 General... 10
5.2 Appearance, structure and function inspection... 10
5.3 Vehicle test... 11
5.4 Component test... 12
6 Inspection rules... 13
Annex A (normative) Test record sheet of vehicle... 15
Bibliography... 18
1 Scope
This Standard specifies the specific safety requirements, test methods and
inspection rules for battery swappable electric vehicles (or "vehicles" for short).
This Standard applies to M1 pure electric vehicles that can be battery swapped.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 18384-2020, Electric vehicles safety requirements
GB/T 19596, Terminology of electric vehicles
GB/T 28382-2012, Battery electric passenger cars - Specifications
GB/T 30038, Road Vehicles - Degrees of Protection (IP-Code) - Protection
of Electrical Equipment Against Foreign Objects, Water and Access
GB/T 37133-2018, Technical specifications of high duty cables and
connectors for electric vehicles
GB 38031-2020, Electric vehicles traction battery safety requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
19596 as well as the followings apply.
3.1 battery swap
a process of realizing the electric energy supplement of electric vehicles
through special devices or manual assistance to quickly replace the power
battery
3.2 swappable battery pack
a power battery pack for battery swap of electric vehicle
3.3 battery swap connector
a connecting device used to connect the battery pack and the vehicle body to
transmit electrical energy, electrical signals, communication data and thermal
energy media
3.4 battery swap mechanism
a mechanical device for combining and separating battery pack and vehicle
body
4 Safety requirements
4.1 General requirements
4.1.1 Battery swap system
4.1.1.1 The design and manufacture of the battery swap system shall meet the
requirements of safe, fast and reliable battery pack swap.
4.1.2 Battery swap mechanism and battery swap connector
4.1.2.1 There shall be no burrs, foreign objects, flashes and similar sharp edges
on the surface of the battery swap mechanism and the battery swap connector.
on-board
4.1.2.3 The battery swap mechanism shall have both the automatic unlocking
function and manual unlocking function of the dedicated device. Two or more
steps shall be used to unlock. The process shall be continuous and reliable.
Avoid maloperation.
4.1.2.4 The electrical interface shall have the correct electrical connection and
disconnection sequence. Avoid unexpected high and low voltage circuit
conduction during battery swap.
4.2 Vehicle requirements
4.2.1 Battery swap operation
4.2.1.1 Electric vehicles shall be tested for battery swap operation in
accordance with 5.3.2.See Table 1 for the number of battery swap operations.
4.2.1.5 During the test, there shall be no failures such as connection failure at
the battery swap connector.
4.2.2 Road driving
4.2.2.1 Electric vehicles shall be tested for road driving in accordance with 5.3.3.
The road mileage shall be no less than 15000km.
4.2.2.2 During the test, the assembly state of the battery pack shall meet the
requirements of the vehicle manufacturer's technical documents. There shall
be no serious faults such as the battery pack falling off, the connection failure.
4.2.3.2 During and after the test, there shall be no insulation failure, sealing
failure and other faults in the battery swap connector.
4.2.3.3 After the simulated wading test, the insulation resistance shall meet the
requirements of 5.1.4.1 in GB 18384-2020.
4.3 Component requirements
4.3.1 Battery swap system
4.3.1.1 The battery swap system shall be subjected to vibration and mechanical
shock tests in accordance with 5.4.1.
4.3.1.2 During the test, the communication of the battery swap system shall be
connected normally without interruption.
4.3.2 Battery swap connector
4.3.2.1 The battery swap connector shall be tested in accordance with
5.4.2~5.4.5.
4.3.2.2 Test according to 5.4.2.There shall be no dielectric breakdown or arc
phenomenon in the electrical interface.
4.3.2.3 Test according to 5.4.3.The insulation resistance between the
conductors, between the conductor and the shell, between the conductor and
the shielding layer of the electrical interface shall not be less than 100MΩ.
5 Test methods
5.1 General
5.1.1 Unless otherwise required, component tests shall be carried out under the
following environmental conditions.
5.1.2 All measuring instruments and equipment shall have sufficient accuracy.
The accuracy shall be at least one order of magnitude higher than the accuracy
of the measured index or the error shall be less than one-third of the allowable
error of the measured parameter.
5.2 Appearance, structure and function inspection
Check the appearance, structure and function by observation or manual
operation.
5.3 Vehicle test
5.3.1 Test plan
5.3.2 Battery swap operation test
5.3.2.1 It shall use the battery swap equipment that is in accordance with the
vehicle design objectives to carry out the battery swap operation test.
5.3.2.2 The battery swap operation test shall be evenly distributed within the
vehicle road test mileage. Multiple tests can be concentrated in one test cycle
of battery swap operation. The number of battery swap operations performed
in a test cycle shall not be greater than one-tenth of the number specified in
4.2.1.1.
5.3.4 Waterproof test of vehicle
5.3.4.1 The waterproof test of the vehicle shall be carried out after the whole
vehicle battery swap operation and road driving test are all finished. Carry out
the test according to the vehicle waterproof test method specified in 6.3 of GB
18384-2020.
5.4 Component test
5.4.1 Vibration and mechanical shock test
5.4.1.1 The battery swap system is tested according to the vibration and
mechanical shock test methods in 8.2.1 and 8.2.2 of GB 38031-2020.The test
shall be able to simulate the actual installation state of the battery swap system
on the vehicle.
5.4.2 Withstand voltage test
Carry out the test in accordance with the withstand voltage test method in 9.3
of GB/T 37133-2018.
5.4.4 Protection level test
Perform IPX7 and IPX9K tests in accordance with GB/T 30038.
5.4.5 Temperature rise test
The temperature rise test of the electrical interface is carried out according to
the temperature rise test method in 9.5 of GB/T 37133-2018.The electrical
interface with temperature monitoring shall be verified for functional
effectiveness.
5.4.6 Test description
The tests of 5.4.2~5.4.5 shall be carried out after the vibration test of the battery
swap system is completed. The electrical interface shall be removed from the
battery swap system. Install it on the test fixture for testing.
6 Inspection rules
6.1 The vehicle test can be carried out by the vehicle manufacturer during the
vehicle reliability test. Fill in the test record sheet during the test. After the test
is over, a test report will be formed. The test record sheet shall comply with
Annex A.
6.2 The test procedure is shown in Figure 3.
Figure 3 -- Test procedure
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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