GB/T 38661-2020 Technical specifications of battery management system for electric vehicles English
1 Scope
This standard specifies the technical requirements, test methods and inspection rules for traction battery management system (hereinafter referred to as “battery management system”) for electric vehicles.
This standard is applicable to the management system of lithium-ion traction batteries and Ni-MH traction batteries for electric vehicles, and also a reference for the management system of other types of traction batteries.
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/T 4365 Electrotechnical terminology - Electromagnetic compatibility
GB/T 17626.4-2018 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test
GB/T 18384.3-2015 Electrically propelled road vehicles - Safety specifications - Part 3: Protection of persons against electric shock
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 19596-2017 Terminology of electric vehicles
GB/T 19951 Road vehicles - Disturbances test methods for electrical/electronic component from electrostatic discharge
GB/T 21437.2-2008 Road vehicles - Electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2012 Road vehicles - Electrical disturbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
GB/T 27930 Communication protocols between off-board conductive charger and battery management system for electric vehicle
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 1: General
GB/T 28046.2-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2: Electrical loads
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 33014.2 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 2: Absorber-lined shielded enclosure
GB/T 33014.4 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI)
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 4365, GB/T 19596-2017, GB/T 28046.1-2011 and the following apply. For the convenience of application, some terms and definitions specified in GB/T 19596-2017 are listed below.
3.1
battery electronics
electronic device collecting or simultaneously monitoring electric and thermal data of battery cell or module, which may include electronics for battery cell equalization where necessary
Note: The battery electronics may include a cell controller. The equalization between battery cells may be controlled by the battery electronics or battery control units.
[GB/T 19596-2017, definition 3.3.2.1.5]
3.2
battery control unit
electronic device controlling, managing, detecting, or calculating relevant electric and thermal parameters of the battery system and providing communication between the battery system and other vehicle controllers
[GB/T 19596-2017, definition 3.3.2.1.4]
3.3
battery management system
system capable of monitoring the state (e.g. temperature, voltage and state of charge) of battery and providing communication, safety, cell equalization and management control for battery as well as providing the communication interface with application equipment
Foreword i
1 Scope
2 Normative References
3 Terms and definitions
4 Abbreviations and symbols
5 Technical requirements
6 Test methods
7 Inspection rules
Annex A (Normative) System function state class
Annex B (Normative) SOC cumulative error test method
Annex D (Informative) Test method of SOP estimation error
Annex E (Informative) Equalizing test method
Annex F (Informative) Typical charge/discharge condition of battery system
GB/T 38661-2020 Technical specifications of battery management system for electric vehicles English
1 Scope
This standard specifies the technical requirements, test methods and inspection rules for traction battery management system (hereinafter referred to as “battery management system”) for electric vehicles.
This standard is applicable to the management system of lithium-ion traction batteries and Ni-MH traction batteries for electric vehicles, and also a reference for the management system of other types of traction batteries.
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/T 4365 Electrotechnical terminology - Electromagnetic compatibility
GB/T 17626.4-2018 Electromagnetic compatibility - Testing and measurement techniques - Electrical fast transient/burst immunity test
GB/T 18384.3-2015 Electrically propelled road vehicles - Safety specifications - Part 3: Protection of persons against electric shock
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 19596-2017 Terminology of electric vehicles
GB/T 19951 Road vehicles - Disturbances test methods for electrical/electronic component from electrostatic discharge
GB/T 21437.2-2008 Road vehicles - Electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only
GB/T 21437.3-2012 Road vehicles - Electrical disturbances from conduction and coupling - Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
GB/T 27930 Communication protocols between off-board conductive charger and battery management system for electric vehicle
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 1: General
GB/T 28046.2-2011 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2: Electrical loads
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 33014.2 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 2: Absorber-lined shielded enclosure
GB/T 33014.4 Road vehicles - Component test methods for electrical/electronic disturbances from narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCI)
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 4365, GB/T 19596-2017, GB/T 28046.1-2011 and the following apply. For the convenience of application, some terms and definitions specified in GB/T 19596-2017 are listed below.
3.1
battery electronics
electronic device collecting or simultaneously monitoring electric and thermal data of battery cell or module, which may include electronics for battery cell equalization where necessary
Note: The battery electronics may include a cell controller. The equalization between battery cells may be controlled by the battery electronics or battery control units.
[GB/T 19596-2017, definition 3.3.2.1.5]
3.2
battery control unit
electronic device controlling, managing, detecting, or calculating relevant electric and thermal parameters of the battery system and providing communication between the battery system and other vehicle controllers
[GB/T 19596-2017, definition 3.3.2.1.4]
3.3
battery management system
system capable of monitoring the state (e.g. temperature, voltage and state of charge) of battery and providing communication, safety, cell equalization and management control for battery as well as providing the communication interface with application equipment
Contents of GB/T 38661-2020
Foreword i
1 Scope
2 Normative References
3 Terms and definitions
4 Abbreviations and symbols
5 Technical requirements
6 Test methods
7 Inspection rules
Annex A (Normative) System function state class
Annex B (Normative) SOC cumulative error test method
Annex D (Informative) Test method of SOP estimation error
Annex E (Informative) Equalizing test method
Annex F (Informative) Typical charge/discharge condition of battery system
