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GB 44497-2024: Intelligent and connected vehicle - Data storage system for automated driving
---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/GB44497-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Intelligent and connected vehicle - Data storage system for
automated driving
Issued on. AUGUST 23, 2024
Implemented on. JANUARY 01, 2026
Issued by. State Administration for Market Regulation;
National Standardization Administration.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 5
4 Technical requirements... 8
5 Test conditions... 31
6 Test method... 32
7 Determination of the same type... 45
8 Implementation of the standard... 46
Appendix A (Normative) Definition of data extraction symbols... 47
Appendix B (Normative) Export file format of automatic driving data recording system
... 49
References... 52
Foreword
This document was drafted in accordance with the provisions of GB/T 1.1-2020
"Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents".
Please note that some contents of this document may involve patents. The issuing
agency of this document does not assume the responsibility for identifying patents.
This document was proposed by AND shall be under the jurisdiction of the Ministry of
Industry and Information Technology of the People's Republic of China.
Intelligent and connected vehicle - Data storage system for
automated driving
1 Scope
This document specifies the technical requirements, test methods, same type
determination of the automatic driving data recording system of intelligent and
connected vehicles.
This document applies to the automatic driving data recording system equipped on
Category M and Category N vehicles.
2 Normative references
The contents of the following documents constitute the essential terms of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date applies to this document; for undated references, the
latest version (including all amendments) applies to this document.
GB/T 1865-2009 Paints and varnishes - Artificial weathering and exposure to
artificial radiation - Exposure to filtered xenon-arc radiation
GB 11551 The protection of the occupants in the event of a frontal collision for
motor vehicle
GB 16735 Road vehicle - Vehicle identification number (VIN)
GB/T 19951-2019 Road vehicles - Disturbances test methods for
electrical/electronic component from electrostatic discharge
GB 20071 The protection of the occupants in the event of a lateral collision
GB/T 20913 The protection of the occupants in the event of an off-set frontal
collision for passenger car
GB/T 21437.3-2021 Road vehicles - Test method of electrical disturbances from
conduction and coupling - Part 3.Electrical transient transmission by capacitive and
inductive coupling via lines other than supply lines
GB/T 28046.1-2011 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 1.General Your
GB/T 28046.2-2019 Road vehicles - Environmental conditions and testing for
electrical and electronic equipment - Part 2.Electrical loads
3 Terms and definitions
The terms and definitions, as defined in GB 39732-2020 and GB/T 40429-2021, as well
as the following terms and definitions, apply to this document.
3.1
Data storage system for automated driving
A system equipped on a vehicle with an automated driving function, that has the
functions of monitoring, collecting, storing data and supports data reading during
the activation of the automated driving system.
3.2
Impact event
A collision or other physical event that reaches or exceeds the trigger threshold, or
any other event that causes the deployment of an irreversible restraint device,
whichever occurs first.
3.3
Starting point of event
T0
The moment when the automated driving data recording system confirms that a
specific event has occurred.
3.4
Ending point of event
Tend
The moment when the automated driving data recording system confirms that a
specific event has ended.
3.5
Locked status
The status in which data cannot be overwritten.
3.6
Field of view angle
In a camera device, the angle formed by the two edges of the maximum range of
lens through which the phase of tested object, using the center of the camera device
as the vertex.
4 Technical requirements
4.1 General
Automatic driving data recording systems are divided into Type I and Type II systems.
The automated driving data recording system equipped on M1 and N1 vehicles shall be
a Type I system or a Type II system. The automated driving data recording system
equipped on M2, M3, N2, N3 vehicles shall be a Type II system. The relevant
4.2 Data recording requirements for type I system
4.2.1 General requirements
4.2.2 Impact event
4.2.2.1 Triggering conditions
When the vehicle meets the requirements of 4.1.1 in GB 39732-2020, the event shall
be recorded.
4.2.3 Events with collision risk
4.2.3.1 Trigger conditions
When the longitudinal deceleration requested by the automated driving system is
greater than 5 m/s2, the event shall be recorded.
4.3 Data recording requirements for type II system
During the activation of the automated driving system, the type II system shall record
at least the following data.
4.4 Data element requirements
4.4.1 Data element grading
The data elements recorded by the automated driving data recording system shall be
divided into two grades according to the following requirements.
4.5 Data storage requirements
4.5.1 Storage medium
The data recorded by the automated driving data recording system shall be stored in the
vehicle-side non-volatile memory.
4.5.2 Storage capacity
The automated driving data recording system shall meet the following requirements.
4.5.3 Storage overwrite mechanism
4.5.3.1 Type I system
When the storage area of a Type I system is full, the following storage overwrite
requirements shall be met.
5 Test conditions
5.1 Test field and test environment requirements
5.1.1 The test field shall meet the following conditions.
5.1.2 Weather conditions
The test vehicle shall be tested in a good weather and normal lighting environment.
5.2 Test equipment and data recording requirements
5.2.1 Test data recording content and requirements
The following contents shall be recorded during the test.
5.2.3 Target objects
The target vehicles, bicycles, motorcycles shall be mass-produced passenger cars, two-
wheeled bicycles two-wheeled ordinary motorcycles, or flexible targets whose surface
feature parameters can represent the above vehicles and adapt to the sensor system.
5.3 Test vehicle requirements
The test vehicle shall meet the following requirements.
6 Test method
6.1 Trigger test
6.1.1 Timestamp event trigger test
6.1.1.1 Test method
Activate the test vehicle's automated driving system and make the automated driving
system run stably. After the following operations are performed, the test is terminated.
6.1.1.2 Pass criteria
After the test, read the timestamp event data recorded by the automatic driving data
recording system in accordance with the requirements of 4.6.The events recorded by
the Type I system shall comply with the requirements of 4.2.1.1b); the time recorded
by the Type II system shall comply with the requirements of 4.3c).
6.1.2 Impact event trigger test
6.1.2.1 General
The impact event trigger test shall select any of the methods in 6.1.2.2, 6.1.2.3, 6.1.2.4
for testing.
6.1.2.2 For data recording systems with signal injection conditions
6.1.3 Triggering test with collision risk event
6.1.3.1 Test scenario
The test road is a long straight road with at least two lanes, meanwhile the middle line
is a white dotted line. The test vehicle and the target vehicle are driving in their
respective lanes. When the test vehicle approaches the target vehicle, the target vehicle
cuts into the lane where the test vehicle is located, as shown in Figure 2.
6.2 Continuous recording trigger test
6.2.1 Test method
For the test vehicle equipped with a Type II system, perform the test in accordance with
6.1.1.1.
6.2.2 Pass criteria
After the test, read the data recorded by the automated driving data recording system.
It shall comply with the requirements of 4.3a) and 4.3b).
6.3 Collision test
6.3.1 Test conditions
Before the test, read the data stored in the automated driving data recording system of
the test vehicle.
6.6 Environmental evaluation test
6.6.1 Electrical performance
6.6.1.1 DC power supply voltage
According to the working mode 3.1 defined in GB/T 28046.1-2011, first adjust the DC
regulated power supply voltage to UN; then gradually adjust the voltage to USmin and
stabilize for 10 minutes; then gradually adjust the voltage to USmax and stabilize for 10
minutes. After the test, read and check the data stored in the automatic driving data
recording system.
6.6.1.2 Overvoltage
6.6.5 Chemical load
In accordance with the working mode 1.1 defined in GB/T 28046.1-2011, select the
chemical reagent and exposure conditions according to the installation position code
[B] in Table 1 of GB/T 28046.5-2013, the wetting method in Table 2, the procedure in
4.8 for testing.
6.6.6 Electromagnetic compatibility performance
6.6.6.1 Immunity to electrical disturbances caused by electrostatic discharge
7 Determination of the same type
7.1 Directly deemed conditions
If all of the following provisions are met, they are deemed to be of the same type.
7.2 Deemed conditions after test verification
If the vehicle model is directly deemed to be changed, when the following provisions
are met, only the technical requirements related to the changed parameters need to be
supplemented and extended after approval, without the need to re-conduct all the tests.
8 Implementation of the standard
From the date of implementation of this document, new vehicle models applying for
type approval shall meet the following requirements.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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