GB/T 41630-2022 PDF in English
GB/T 41630-2022 (GB/T41630-2022, GBT 41630-2022, GBT41630-2022)
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Performance requirements and test methods for intelligent parking assist system
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GB/T 41630-2022: PDF in English (GBT 41630-2022) GB/T 41630-2022
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
CCS T 41
Performance requirements and test methods for intelligent
parking assist system
ISSUED ON: JULY 11, 2022
IMPLEMENTED ON: FEBRUARY 01, 2023
Issued by: Status Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions... 4
4 General requirements ... 5
4.1 Self-inspection ... 5
4.2 System status transition and information prompt ... 6
4.3 Functional safety ... 7
4.4 Electromagnetic compatibility ... 7
5 Performance requirements ... 7
5.1 Slot search ... 7
5.2 Parking assist ... 8
5.3 Test criteria ... 12
6 Test methods ... 12
6.1 Test environment requirements ... 12
6.2 Test items ... 12
6.3 Requirements for parking slot layout... 14
Annex A (normative) Functional safety requirements for vehicle safety-related
electrical and electronic systems ... 20
A.1 General ... 20
A.2 Documentation ... 20
Performance requirements and test methods for intelligent
parking assist system
1 Scope
This document specifies the general requirements, performance requirements and test
methods for intelligent parking assist system.
This document is applicable to M1 vehicles equipped with intelligent parking assist
system. Other types of vehicles can use this document as reference for the
implementation.
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 5768.3, Road traffic signs and markings - Part 3: Road traffic markings
GB/T 34590 (all parts), Road vehicles - Functional safety
GB 34660, Road vehicles - Requirements and test methods of electromagnetic
compatibility
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 intelligent parking assist system; IPAS
A system that automatically detects the parking space and provides the driver with
auxiliary functions such as parking instructions and/or directional control when the
vehicle is parked.
NOTE 1: Direction control includes lateral control or lateral and longitudinal combined control.
NOTE 2: Parking space may also be referred to as "parking slot".
NOTE 3: The intelligent parking assist system is hereinafter referred to as the "system".
3.2 vehicle undertest
4.2 System status transition and information prompt
4.2.1 System inactive status
The system inactive status includes the off status and the standby status. In this status,
the system shall not control the vehicle.
4.2.2 Slot search status
4.2.2.1 The system shall switch from the inactive status to the working status of slot
search in at least one of the following ways:
a) Active activation: The driver actively activates the slot search status mode;
b) Automatic activation: When the vehicle speed reaches a certain threshold, it will
automatically enter the slot search status mode.
4.2.2.2 The system shall have the ability to search for parking slot and be able to search
for at least one of the following types of parking slots:
a) Category 1 IPAS parking slots are parking slots enclosed by bordering vehicles;
b) Category 2 IPAS parking slots are parking slots enclosed by parking slot defining
line.
4.2.2.3 The system shall prompt the parking slot information through the driver's active
confirmation or automatic display.
4.2.3 Assisted parking status
4.2.3.1 The initial condition for the system to enter the assisted parking status shall be
that the vehicle is stationary. When the driver actively confirms the position of the
parking slot, the system shall switch to the assisted parking status.
4.2.3.2 The system shall have at least one of the following control modes to assist the
driver to park the vehicle in the parking slot:
a) Lateral control mode: The system controls the lateral movement of the vehicle.
The driver controls the longitudinal movement of the vehicle;
b) Lateral and longitudinal combined control mode: The system controls the lateral
and longitudinal movement of the vehicle.
4.2.3.3 In the assisted parking status, the system shall send out status and operation
information prompts and set the maximum running speed not greater than 10km/h.
When the vehicle speed exceeds the maximum driving speed, the system shall send a
prompt message to the driver and exit the assisted parking status.
4.2.3.4 After the system completes the assisted parking control, it shall send a prompt
message to the driver and exit to the inactive status.
4.2.4 System exit conditions
In the assisted parking status, the system shall have the function of taking over the
control of the vehicle at any time and exiting to the inactive status through the driver's
active way. The driver's active exit conditions are described in the system manual. Exit
conditions may include, but are not limited to, the following:
- Operate the steering wheel;
- Operate the brake pedal;
- Operate the gear;
- Operate the parking brake.
4.2.5 System failure response
If a fault occurs during system self-inspection and operation, the system shall at least
optically prompt the driver with fault information. It can exit to the inactive status.
4.3 Functional safety
The system shall comply with the functional safety requirements of Annex A.
4.4 Electromagnetic compatibility
The electromagnetic compatibility of the system shall meet the requirements of GB
34660.
5 Performance requirements
5.1 Slot search
5.1.1 Category 1 IPAS slot search
Test according to 6.2.1. The system shall search for a parking slot in the slot search
status.
5.1.2 Category 2 IPAS slot search
Test according to 6.2.2. The system shall search for a parking slot in the slot search
status.
5.3 Test criteria
5.3.1 Test of category 1 IPAS parking slots
Repeat the test according to the test group of 6.2.1. Each of the 6 groups of test items
shall be repeated 3 times. At least 2 times shall meet the corresponding requirements of
5.1 and 5.2. If a collision occurs during any group of tests, the test is judged to have
failed.
5.3.2 Test of category 2 IPAS parking slots
Repeat the test according to the test group of 6.2.2. Each of the 8 groups of test items
shall be repeated 3 times. At least 2 times shall meet the corresponding requirements of
5.1 and 5.2. If a collision occurs during any group of tests, the test is judged to have
failed.
6 Test methods
6.1 Test environment requirements
The test environment shall meet the following requirements:
a) The wind speed does not exceed 7.9m/s. The relative humidity is less than 95%.
There is no rain, snow, fog and so on;
b) The test pavement is a level (slope less than 1%), smooth, dry, concrete or asphalt
pavement with good adhesion;
c) The ambient illuminance of the target parking slot is not less than 100lx;
d) There are no interferences that affect the sensor's operation.
If category 2 IPAS test is carried out, in addition to meeting the above requirements,
the parking slot defining line shall be free of damage and clearly visible.
6.2 Test items
6.2.1 Category 1 IPAS test method
When the parking assist system is activated, according to Table 1, complete 6 groups
of test items with different lateral distances and parking slot arrangements. The vehicle
undertest drives to the parking slot at a speed of 10km/h. The speed deviation is ±2km/h.
The driving path is straight. The absolute value of the lateral distance deviation of the
vehicle undertest shall not be greater than 0.2m. The absolute value of the angle
Annex A
(normative)
Functional safety requirements for vehicle safety-related electrical and electronic
systems
A.1 General
When the vehicle safety-related electronic and electrical system malfunctions, it will
lead to potential hazardous events (for example, during the normal driving process of
the vehicle, an unexpected vehicle control system occurs, resulting in an accident risk).
GB/T 34590 (all parts) clarifies the functional safety requirements that vehicle safety-
related electrical and electronic systems shall meet during the safety life cycle, so as to
avoid or reduce the risk caused by system failure.
This appendix specifies the documentation, failure strategies and special requirements
for validation testing of the intelligent parking assist system (IPAS) in terms of
functional safety.
This appendix does not address the nominal performance of the intelligent parking
assist system (IPAS). Nor does it serve as specific guidance for the development of
functional safety of the IPAS system. Rather, it specifies the methods to be followed in
the design process and the information that shall be available for system verification
and validation, so as to demonstrate that the system can ensure the realization of the
functional safety concept under normal operation and fault conditions and meet all
applicable performance requirements specified in this document.
A.2 Documentation
A.2.1 Requirements
Corresponding documents shall be available to illustrate the functional concept,
functional safety concept of the system and meet the following requirements:
a) Explain the functional concept of the system, internal and external interfaces,
potential failure risks and safety measures;
b) Prove that the system design considers potential failure sources, including random
hardware failures and systematic failures, and applies engineering practices in
related fields;
Example: Annex E of GB/T 34590.5-2017 gives design practices for random
hardware failures.
c) To support the confirmation test, describe how to check the normal operation of
the system and the working status of the failure mode.
A.2.2 Dependent item definition file
A.2.2.1 The functional concept of the item shall be described. Provide a list of
functional descriptions.
NOTE 1: In GB/T 34590.1, the relevant item refers to one or a group of systems that perform
functions at the vehicle level. For example, the definition of the relevant item of the (IPAS) system
may include surround view cameras, electronic control units (ECU), steering control modules,
longitudinal Control module, ultrasonic radar, and so on.
NOTE 2: Describe and refine the perceptible functions at the vehicle level.
A.2.2.2 The scope of related items shall be defined. Define the systems and elements
that belong to the related item. Identify external systems or elements with which they
interact.
A.2.2.3 The operating conditions and constraints of the item shall be defined. For the
corresponding system functions, the boundaries of the effective working range are
described.
Example: Common operating conditions include power supply, vehicle speed, and so
on. Common constraints are ambient temperature, humidity, vibration, and so on.
A.2.2.4 Provide schematic diagrams (such as block diagrams) to illustrate the
architecture of the item and its internal and external interfaces. In the schematic diagram,
the related item components, external interface systems, internal and external interface
channels are indicated by serial numbers. Provide a detailed list. Briefly describe the
function of each component, system, and interface in the list.
NOTE: If a component integrates multiple functions, it can be represented by multiple modules in
the schematic diagram for clarity and ease of explanation.
A.2.2.5 Use the identification mark to clearly and unambiguously identify each
component (both hardware and software) of the relevant item. Confirm its consistency
with the documentation provided. The identification mark shall identify hardware and
software versions. If the version change causes the function change described in this
document, the identification mark shall be changed accordingly.
A.2.3 Hazard analysis and risk assessment
A.2.3.1 The functional failures of related items shall be analyzed and classified.
Example: Typical analytical methods, for example, hazard and operability studies
(HAZOP).
A.2.3.2 A list of potential hazards shall be given according to the target usage scenarios
and target users of the vehicle. Define the corresponding automotive safety integrity
level (ASIL), see GB/T 34590.3.
A.2.3.3 Safety objectives shall be defined and categorized for potential hazards.
A.2.4 Functional safety concept
A.2.4.1 The safety measures (including external measures) taken during design to
ensure that the relevant safety objectives are met in the event of a system failure shall
be stated. The following safety measures can be taken.
a) Utilize parts of the system to maintain work. If a mode of operation is selected to
maintain partial performance in the event of a specific failure, the conditions shall
be stated, and their effects defined.
b) Switch to an independent backup system. If the backup system method is chosen
to achieve the safety goal, the principle of the switching mechanism, the logic and
level of redundancy and the check characteristics of the backup system shall be
explained. The effect of the backup system shall be defined.
c) A safe status is entered by turning off upper layer functions. If it chooses to close
the upper layer function, all corresponding output control signals related to this
function shall be prohibited to limit transient interference.
d) Reduce risk exposure time to an acceptable time interval through driver warning.
A.2.4.2 When the IPAS system fails, the driver shall be warned by means of warning
signals or information prompts.
A.2.4.3 The general structure of the software in the system shall be explained. The
design methods and tools used shall be noted.
A.2.5 Security analysis
A safety analysis shall generally demonstrate that failures or groups of failures affecting
the safety objectives of the system have been effectively identified and dealt with, so as
to support the above documents.
The analysis may use a potential failure mode and effects analysis (FMEA), fault tree
analysis (FTA), or other similar methods suitable for system safety analysis.
A.2.6 Confirmation test
In accordance with the description of the relevant documents in A.2, carry out the
following tests to confirm the functional concept and safety concept of the system.
a) Confirm the functional concept of the system. Unless a functional test is required
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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