GB/T 24347-2021 DC/DC converter for electric vehicles English
DC/DC converter for electric vehicles
1 Scope
This document specifies the technical requirements and test methods of DC/DC converter for electric vehicles.
This document is applicable to DC/DC converter for electric vehicles, for other circuits with DC/DC conversion function, this document may be referred.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 18655-2018 Vehicles boats and internal combustion engines—Radio disturbance characteristics—Limits and methods of measurement for the protection of on-board receivers
GB/T 19596 Terminology of electric vehicles
GB/T 19951 Road vehicles—Disturbance test methods for electrical/electronic component from electrostatic discharge
GB/T 28046.3-2011 Road vehicles—Environmental conditions and testing for electrical and electronic equipment—Part 3: Mechanical loads
GB/T 28046.4-2011 Road vehicles—Environmental conditions and testing for electrical and electronic equipment—Part 4: Climatic loads
GB/T 29259 Road vehicle—Electromagnetic compatibility terminology
ISO 7637-2: 2011 Road vehicles—Electrical disturbances from conduction and coupling—Part 2: Electrical transient conduction along supply lines only
ISO 7637-3: 2016 Road vehicles—Electrical disturbances from conduction and coupling Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
ISO 11452 2 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 2: Absorber lined shielded enclosure
ISO 11452-4 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 4: Harness excitation methods
ISO 11452-8: 2015 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 8: Immunity to magnetic fields
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 19596 and GB/T 29259 and the following apply.
3.1
DC/DC converter
device capable of converting electric energy of one DC voltage value into electric energy of another DC voltage value
[Source: GB/T 19596-2017, 3.2.4.1, modified]
3.2
overshoot and response time
overshoot refers to the ratio (%) for the maximum deviation of the transient value from the steady-state value to the steady-state value in the process of the controlled value of the DC/DC converter from the change time to the recovery within the control error range when the input or output changes; response time refers to the time when the controlled quantity reaches and remains the allowable deviation range if the input or output changes
Note: The schematic diagram for overshoot and response time is shown in Figure 1.
... ...
Figure 1 Schematic diagram for overshoot and response time
3.3
quiescent current
current of low-voltage battery consumed by DC/DC converter in sleep status
3.4
weighted efficiency
weighted average of each efficiency of the load spectrum corresponding to the DC/DC converter
3.5
DC/DC for high voltage output
DC/DC converter with a rated output voltage level greater than 60V and less than 1,500V
3.6
DC/DC for low voltage output
DC/DC converter with a rated output voltage level not greater than 60V
3.7
ripple factor
ratio of the half of the difference between the peak value and the valley value of the pulsating DC power to the absolute value of its direct current component
[Source: GB/T 19826-2014, 3.8]
4 Technical requirements
4.1 Appearance requirements
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
4.1 Appearance requirements
4.2 Input-output characteristics
4.3 Protection function
4.4 Environmental adaptability
4.5 Electromagnetic compatibility
4.6 Electrical safety
5 Test methods
5.1 Test requirements
5.2 Appearance test
5.3 Input-output characteristics test
5.4 Protection function test
5.5 Environmental adaptability test
5.6 Electromagnetic compatibility test
5.7 Electrical safety test
Bibliography
GB/T 24347-2021 DC/DC converter for electric vehicles English
DC/DC converter for electric vehicles
1 Scope
This document specifies the technical requirements and test methods of DC/DC converter for electric vehicles.
This document is applicable to DC/DC converter for electric vehicles, for other circuits with DC/DC conversion function, this document may be referred.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 18655-2018 Vehicles boats and internal combustion engines—Radio disturbance characteristics—Limits and methods of measurement for the protection of on-board receivers
GB/T 19596 Terminology of electric vehicles
GB/T 19951 Road vehicles—Disturbance test methods for electrical/electronic component from electrostatic discharge
GB/T 28046.3-2011 Road vehicles—Environmental conditions and testing for electrical and electronic equipment—Part 3: Mechanical loads
GB/T 28046.4-2011 Road vehicles—Environmental conditions and testing for electrical and electronic equipment—Part 4: Climatic loads
GB/T 29259 Road vehicle—Electromagnetic compatibility terminology
ISO 7637-2: 2011 Road vehicles—Electrical disturbances from conduction and coupling—Part 2: Electrical transient conduction along supply lines only
ISO 7637-3: 2016 Road vehicles—Electrical disturbances from conduction and coupling Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
ISO 11452 2 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 2: Absorber lined shielded enclosure
ISO 11452-4 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 4: Harness excitation methods
ISO 11452-8: 2015 Road vehicles—Component test methods for electrical disturbances from narrowband radiated electromagnetic energy—Part 8: Immunity to magnetic fields
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 19596 and GB/T 29259 and the following apply.
3.1
DC/DC converter
device capable of converting electric energy of one DC voltage value into electric energy of another DC voltage value
[Source: GB/T 19596-2017, 3.2.4.1, modified]
3.2
overshoot and response time
overshoot refers to the ratio (%) for the maximum deviation of the transient value from the steady-state value to the steady-state value in the process of the controlled value of the DC/DC converter from the change time to the recovery within the control error range when the input or output changes; response time refers to the time when the controlled quantity reaches and remains the allowable deviation range if the input or output changes
Note: The schematic diagram for overshoot and response time is shown in Figure 1.
... ...
Figure 1 Schematic diagram for overshoot and response time
3.3
quiescent current
current of low-voltage battery consumed by DC/DC converter in sleep status
3.4
weighted efficiency
weighted average of each efficiency of the load spectrum corresponding to the DC/DC converter
3.5
DC/DC for high voltage output
DC/DC converter with a rated output voltage level greater than 60V and less than 1,500V
3.6
DC/DC for low voltage output
DC/DC converter with a rated output voltage level not greater than 60V
3.7
ripple factor
ratio of the half of the difference between the peak value and the valley value of the pulsating DC power to the absolute value of its direct current component
[Source: GB/T 19826-2014, 3.8]
4 Technical requirements
4.1 Appearance requirements
Contents of GB/T 24347-2021
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
4.1 Appearance requirements
4.2 Input-output characteristics
4.3 Protection function
4.4 Environmental adaptability
4.5 Electromagnetic compatibility
4.6 Electrical safety
5 Test methods
5.1 Test requirements
5.2 Appearance test
5.3 Input-output characteristics test
5.4 Protection function test
5.5 Environmental adaptability test
5.6 Electromagnetic compatibility test
5.7 Electrical safety test
Bibliography
