GB/T 41901.2-2022 English PDF (GBT41901.2-2022)

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GB/T 41901.2-2022: Road vehicles -- Extended vehicle(ExVe) methodology -- Part 2: Methodology for designing the extended vehicle
GB/T 41901.2-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 40
Road Vehicles - Extended Vehicle (ExVe) Methodology - Part
2: Methodology for Designing the Extended Vehicle
(ISO 20077-2:2018, MOD)
ISSUED ON: OCTOBER 12, 2022
IMPLEMENTED ON: MAY 1, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
Introduction ... 6
1 Scope ... 7
2 Normative References ... 7
3 Terms and Definitions ... 7
4 Abbreviations ... 8
5 Conventions for Identifying Rules and Basic Principles, and for Specifying Relevant
Contents ... 8
6 Overview ... 9
6.1 Role of Design Methodology in the Design of Extended Vehicle ... 9
6.2 Main Content of Design Methodology of Extended Vehicle ... 9
6.3 Consideration of New Functionalities of Extended Vehicle ... 10
7 Rules ... 11
7.1 Overview ... 11
7.2 Safety-related Rules ... 12
7.3 Security-related Rules ... 13
8 Basic Principles ... 13
8.1 Overview ... 13
8.2 General Basic Principles ... 14
8.3 Life Cycle-related Basic Principles ... 14
8.4 Remote Access-related Basic Principles ... 16
8.5 Existing Design-related Basic Principles ... 17
8.6 Basic Principles Related to Interactions between Functionalities and Priority
Management ... 19
8.7 Basic Principles Related to Resource Non-degradation and Availability ... 19
8.8 Basic Principles Related to Validation of Extended Vehicle Functionality... 21
8.9 Basic Principles Related to Prohibition of Monitoring ... 21
Appendix A (informative) A Comparison of Structural No. Between This Document
and ISO 20077-2:2018 ... 22
Appendix B (informative) Design Methodology of Extended Vehicle - Technical
Template ... 23
Appendix C (informative) Template for Technical Request ... 28
Appendix D (informative) Template for Technical Response ... 29
Bibliography ... 30
Road Vehicles - Extended Vehicle (ExVe) Methodology - Part
2: Methodology for Designing the Extended Vehicle
1 Scope
This document specifies the rules and basic principles of the design methodology of extended
vehicles.
This document is applicable to Category-M and Category-N vehicles.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in this 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/T 41901.1 Road Vehicles - Extended Vehicle (ExVe) Methodology - Part 1: General
Information (GB/T 41901.1-2022, ISO 20077-1:2017, MOD)
3 Terms and Definitions
What is defined in GB/T 41901.1, and the following terms and definitions are applicable to this
document.
3.1 Basic Principle
Basic principle refers to the design principle that is considered in the design of extended
vehicles.
3.2 Life Cycle
Life cycle refers to the various situations that a vehicle can encounter throughout its life,
including design, manufacture, customer use, maintenance, and recycling, etc.
3.3 Local Diagnostic Facilitator
Local diagnostic facilitator refers to a person who maintains communication with the remote
technician and is able to perform the operations requested by the remote technician and answer
questions of the remote technician, thereby facilitating the diagnosis.
NOTE: the local diagnostic facilitator has the ability to understand and describe the contents
displayed by the on-board instruments and signaling devices.
3.4 Operator
Operator refers to a person who operates, controls or serves extended vehicle while in the
vehicle.
EXAMPLE: local diagnostic facilitator.
3.5 Requester
Requester refers to an enterprise or legal entity that proposes new functional requirements to
the manufacturer of extended vehicles.
NOTE 1: when submitting the requirements, the vehicle manufacturer, which is a provider of after-
sales service, is deemed as the demand-side.
NOTE 2: if the vehicle manufacturer is the same as the manufacturer of extended vehicle, its
internal request process can be used.
3.6 Rule
Rule refers to the basic design requirement to be satisfied when designing extended vehicle.
4 Abbreviations
The following abbreviations are applicable to this document.
BP: Basic Principle
ECU: Electronic Control Unit
ExVe: Extended Vehicle
LDF: Local Diagnostic Facilitator
NUM: Number
R: Rule
5 Conventions for Identifying Rules and Basic Principles, and
for Specifying Relevant Contents
5.1 In this document, the rules and basic principles are expressed in the following mode:
 NUM: content of the rule or basic principle.
5.2  NUM represents the quoted rule (R) or basic principle (BP), in which:
--- is the letter used to identify the rule (R) or basic principle (BP);
---NUM is an integer, which is between 001 and 999 (inclusive), and used to identify the
number of the rule or basic principle.
EXAMPLE: R 025 and R 026 are two different rules.
NOTE: rules and basic principles can be followed by explanatory text.
6 Overview
6.1 Role of Design Methodology in the Design of Extended Vehicle
This document aims to provide guidance for the design (physics, documentation, and support,
etc.) of extended vehicles and their interfaces by specifying a general system of rules and basic
principles. The manufacturer of extended vehicles shall formulate corresponding methods or
processes in accordance with the rules and basic principles for the design of extended vehicles
on the basis of specific use cases or scenarios.
Each manufacturer of extended vehicles generally regulates the working mode of the design
process through a collaborative method and process, as it is shown in Figure 1.
6.2 Main Content of Design Methodology of Extended Vehicle
The design methodology of extended vehicle includes the following contents (see Figure 2):
---When proposing new functional requirements, a template for technical request used to
fully describe the minimum information (see Appendix B and Appendix C);
---A system of rules and basic principles used to guide the new functional design of
extended vehicle (see Chapter 7 and Chapter 8);
---When responding to new functional requirements, a template for technical response
used to fully describe the minimum information (see Appendix B and Appendix D).
by implementing the rules and basic principles of this document. The design methodology
applies to the design or design alternations of extended vehicle, including direct or indirect
communication between the vehicle the third party (for example, vehicle operator, vehicle
owner, service provider or other related parties of extended vehicle).
The new functional requirements of extended vehicles may come from regulations, standards,
and individual requests. The new functional requirements of extended vehicles shall be
accurately described by the demand-side through the template for technical request for all
necessary elements (for example, performance-related elements).
The design methodology also applies to the design of new interfaces for the remote
communication of vehicles from regulatory requirements.
This document applies both to any request from the demand-side for new functionalities of
extended vehicles, and also ...