GB 45672-2025 On-board accident emergency call system
1 Scope
This document specifies the technical requirements, test methods, and requirements for judging the same type for on-board accident emergency call systems.
This document is applicable to Categories M1 and N1 vehicles.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions 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 11551-2014 The protection of the occupants in the event of a frontal collision for motor vehicle
GB/T 15089 Classification of power-driven vehicles and trailers
GB 16735 Road vehicle - Vehicle identification number (VIN)
GB 20071-2025 The protection of the occupants in the event of a lateral collision
GB 20072-2024 The requirements of safety in the event of rear-end collision for passenger car
GB/T 20913-2007 The protection of the occupants in the event of an off-set frontal collision for passenger car
GB 34660-2017 Road vehicles - Requirements and test methods of electromagnetic compatibility
GB 39732-2020 Vehicle event data recorder system
GB/T 43187-2023 On-board wireless communication terminal
GB/T 45086.1-2024 Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning
GB/T 45314-2025 Road vehicles - Performance requirements and test methods for hands free communication and voice interaction
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
on-board accident emergency call system; AECS
system that, upon the occurrence of an accident, is automatically activated through internal vehicle strategies, or after manual triggering by personnel inside the vehicle, synchronously sends the vehicle's location and vehicle-related status information to the emergency call service platform and establishes voice communication
3.2
on-board wireless communication terminal
electronic device installed in a vehicle that can establish a connection and exchange information using technologies such as cellular mobile communication
Note: The on-board wireless communication terminal is typically composed of components such as a transmitter, receiver, antenna, controller, and cables.
[Source: GB/T 43187-2023, 3.1]
3.3
emergency call service platform
service platform that responds to or transmits emergency call information sent by a vehicle
3.4
power supply
component that supplies power to the AECS
3.5
back-up power supply
component that supplies power to the AECS when there is a power supply failure
3.6
on-board satellite positioning system
system installed in a vehicle that uses radio signals transmitted by artificial earth satellites for positioning, speed measurement, and timing
[Source: GB/T XXXX Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning, 3.1]
3.7
control module
module in the AECS used to verify the implementation of the combined functions of all its modules
4 Technical requirements
4.1 General requirements
4.1.1 Categories M1 and N1 vehicles shall be equipped with the AECS. The AECS typically consists of components such as the control module, on-board wireless communication terminal, on-board satellite positioning system, warning signal device, information signal device, power supply or back-up power supply, etc.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Instructions
6 Judgment on the same type
7 Implementation of this standard
Annex A (Normative) Minimum set of data (MSD)
Annex B (Normative) Automatic trigger test methods
Annex C (Normative) Functional test requirements
Annex D (Normative) Self-test methods
Annex E (Normative) Impact resistance test method
Annex F (Normative) Electromagnetic radiated immunity test
GB 45672-2025 On-board accident emergency call system
1 Scope
This document specifies the technical requirements, test methods, and requirements for judging the same type for on-board accident emergency call systems.
This document is applicable to Categories M1 and N1 vehicles.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions 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 11551-2014 The protection of the occupants in the event of a frontal collision for motor vehicle
GB/T 15089 Classification of power-driven vehicles and trailers
GB 16735 Road vehicle - Vehicle identification number (VIN)
GB 20071-2025 The protection of the occupants in the event of a lateral collision
GB 20072-2024 The requirements of safety in the event of rear-end collision for passenger car
GB/T 20913-2007 The protection of the occupants in the event of an off-set frontal collision for passenger car
GB 34660-2017 Road vehicles - Requirements and test methods of electromagnetic compatibility
GB 39732-2020 Vehicle event data recorder system
GB/T 43187-2023 On-board wireless communication terminal
GB/T 45086.1-2024 Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning
GB/T 45314-2025 Road vehicles - Performance requirements and test methods for hands free communication and voice interaction
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
on-board accident emergency call system; AECS
system that, upon the occurrence of an accident, is automatically activated through internal vehicle strategies, or after manual triggering by personnel inside the vehicle, synchronously sends the vehicle's location and vehicle-related status information to the emergency call service platform and establishes voice communication
3.2
on-board wireless communication terminal
electronic device installed in a vehicle that can establish a connection and exchange information using technologies such as cellular mobile communication
Note: The on-board wireless communication terminal is typically composed of components such as a transmitter, receiver, antenna, controller, and cables.
[Source: GB/T 43187-2023, 3.1]
3.3
emergency call service platform
service platform that responds to or transmits emergency call information sent by a vehicle
3.4
power supply
component that supplies power to the AECS
3.5
back-up power supply
component that supplies power to the AECS when there is a power supply failure
3.6
on-board satellite positioning system
system installed in a vehicle that uses radio signals transmitted by artificial earth satellites for positioning, speed measurement, and timing
[Source: GB/T XXXX Technical requirements and test methods for on-board positioning system - Part 1: Satellite positioning, 3.1]
3.7
control module
module in the AECS used to verify the implementation of the combined functions of all its modules
4 Technical requirements
4.1 General requirements
4.1.1 Categories M1 and N1 vehicles shall be equipped with the AECS. The AECS typically consists of components such as the control module, on-board wireless communication terminal, on-board satellite positioning system, warning signal device, information signal device, power supply or back-up power supply, etc.
Contents of GB 45672-2025
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Instructions
6 Judgment on the same type
7 Implementation of this standard
Annex A (Normative) Minimum set of data (MSD)
Annex B (Normative) Automatic trigger test methods
Annex C (Normative) Functional test requirements
Annex D (Normative) Self-test methods
Annex E (Normative) Impact resistance test method
Annex F (Normative) Electromagnetic radiated immunity test
