GB/T 44461.1-2024 English PDF (GBT44461.1-2024)

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GB/T 44461.1-2024: Intelligent and connected vehicle - Technical requirements and testing methods for combined driver assistance system - Part 1: Single-lane manoeuvre
GB/T 44461.1-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 40
Intelligent and Connected Vehicle - Technical Requirements
and Testing Methods for Combined Driver Assistance
System - Part 1.Single-lane Manoeuvre
ISSUED ON. AUGUST 23, 2024
IMPLEMENTED ON. AUGUST 23, 2024
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 General Requirements... 7
5 Performance Requirements... 8
6 Test Methods... 13
Appendix A (normative) Functional Safety Requirements... 19
Bibliography... 23
Intelligent and Connected Vehicle - Technical Requirements
and Testing Methods for Combined Driver Assistance
System - Part 1.Single-lane Manoeuvre
1 Scope
This document specifies the general requirements and performance requirements and describes
the test methods for the single-lane manoeuvre of intelligent and connected vehicles.
This document is applicable to Category-M and Category-N vehicles equipped with single-lane
manoeuvre system.
NOTE. in the absence of confusion, the “single-lane manoeuvre system” in this document is
referred to as the “system” in short.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB 5768.3 Road Traffic Signs and Markings - Part 3.Road Traffic Markings
GB/T 12534 Motor Vehicles - General Rules of Road Test Method
GB 34660 Road Vehicles - Requirements and Test Methods of Electromagnetic Compatibility
GB/T 44373 Intelligent and Connected Vehicle - Terms and Definitions
3 Terms and Definitions
The terms and definitions defined in GB/T 44373, and the following are applicable to this
document.
3.1 single-lane manoeuvre system
A combined driver assistance system that continuously controls the lateral and longitudinal
motion of the vehicle based on the surrounding driving environment and assists the driver in
controlling the vehicle to drive only in a selected single lane.
3.2 lane
A state, in which, the system does not perform any lateral or longitudinal motion control on the
vehicle.
3.9 partial active state
A state, in which, the system does not perform lateral and longitudinal motion control on the
vehicle at the same time but assists the driver in performing lateral or longitudinal motion
control.
3.10 active state
A state, in which, the system assists the driver in continuously controlling the lateral and
longitudinal motion of the vehicle.
4 General Requirements
4.1 Functional Requirements
The system shall have clear activation conditions. In the active state, it shall assist the driver in
controlling the vehicle to drive in the selected lane, and allow the driver to adjust settings, for
example, cruising speed. In addition, it shall not affect the activation of emergency assistance
functions, for example, automatic emergency braking.
4.2 Self-inspection
The system shall complete self-inspection before entering the active state and be equipped with
at least the following self-inspection functions. When an abnormal state is detected, it shall not
enter the active state.
a) Check whether the relevant electrical components are normally operating;
b) Check whether the relevant sensing elements are normally operating.
4.3 State Switching
4.3.1 Each time the vehicle is powered on / ignited, after the driver performs the system
activation mode specified by the vehicle manufacturer, the system shall enter the partial active
state or active state.
NOTE. the operation of the vehicle’s automatic start-stop system is not considered as vehicle
power-on / ignition.
4.3.2 The system shall respond at any time to the driver performing a single operation specified
by the vehicle manufacturer that brings the system from the partial active state or active state
into the inactive state. After this operation, and after the driver performs the system activation
mode specified by the vehicle manufacturer, the system shall re-enter the partial active state or
active state.
4.4 Prompt Signal
4.4.1 The system shall at least continuously emit an optical prompt signal in the partial active
state and active state, and at least optically distinguish the inactive state, partial active state and
active state of the system.
4.4.2 If the system has a fault in the partial active state and active state, the system shall send
out a fault indication message. This fault indication message shall at least include an optical
prompt signal and be distinguished from other indication information of the system.
4.4.3 The optical signal shall be clearly visible to the driver in the normal driving position even
during the day.
4.5 Driver Monitoring
When the system is in the active state, and the vehicle speed is between the larger value of 10
km/h and vsmin-SL, and vsmax-SL, at least the hands-off detection method shall be adopted to
continuously detect whether the driver is performing the corresponding dynamic driving task.
4.6 System Intervention Strategy
The system shall respond to the driver’s active intervention in vehicle motion control.
4.7 Electromagnetic Compatibility
The electromagnetic compatibility of the system shall comply with the requirements of GB
34660.
4.8 Functional Safety
The functional safety of the system shall comply with the requirements of Appendix A.
5 Performance Requirements
5.1 Lateral Motion Control
5.1.1 In accordance with 6.5, carry out the test. The lateral distance between the vehicle under
test and the lane boundary line shall be maintained at (W/2  0.3) m.
5.1.2 In accordance with 6.6, carry out the test. The outer edge of any wheel of the vehicle
under test shall not cross the inner edge of the lane boundary line.
5.1.3 In accordance with 6.7.2 a) or 6.7.3 a), carry out the test. The outer edge of any wheel of
the vehicle under test shall not cross the inner edge of the lane boundary line. The lateral
acceleration of the vehicle when the system is in the active state shall not be greater than the
maximum lateral acceleration declared by the vehicle manufacturer. The maximum lateral
acceleration shall be within the range of the maximum value and the minimum value in Table
from the previous stage. This signal lasts for at least 5 s, or until the driver takes hold
of the steering wheel again.
Regarding the relevant requirements for holding the steering wheel in b) and c), if the driver
slightly turns the steering wheel in the mode specified by the vehicle manufacturer, it is also
deemed to be in compliance with the requirements.
5.4 Driver Intervene
In accordance with 6.9, carry out the test. The system shall ensure that the driver can intervene
in the driving of the vehicle with a steering force of no more than 50 N.
6 Test Methods
6.1 Test Conditions
6.1.1 Test road
The test road shall comply with the following requirements.
a) The test road sur...