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GB/T 41588.1-2022 (GB/T41588.1-2022)

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GB/T 41588.1-2022
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 35
GB/T 41588.1-2022 / ISO 11898-1.2015
Road Vehicles – Controller Area Network (CAN)
– Part 1.Data Link Layer and Physical Signaling
(ISO 11898-1.2015, IDT)
ISSUED ON. JULY 11, 2022
IMPLEMENTED ON. FEBRUARY 01, 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... 8
3 Terms and Definitions... 8
4 Symbols and Abbreviated Terms... 13
5 Basic Concepts of CAN... 15
5.1 CAN properties... 15
5.2 Frames... 16
5.3 Bus access method... 16
5.4 Information routing... 16
5.5 Network flexibility... 16
5.6 Data consistency... 17
5.7 Remote data request... 17
5.8 Error detection... 17
5.9 Error signaling and recovery time... 17
5.10 ACK... 17
5.11 Automatic retransmission... 18
5.12 Fault confinement... 18
5.13 Error-active... 18
5.14 Error-passive... 18
5.15 Bus-off... 18
6 Layered Architecture of CAN... 18
6.1 Reference to OSI model... 18
6.2 Protocol specification... 19
6.3 Format description of services... 20
6.4 LLC interface... 21
7 Description of LLC Sub-Layer... 22
7.1 General... 22
7.2 Services of LLC sub-layer... 22
7.3 Functions of LLC sub-layer... 29
7.4 Structure of LLC frames... 30
7.5 Limited LLC frames... 32
8 Interface between LLC and MAC... 33
8.1 Services... 33
8.2 Time and time triggering... 33
8.3 Disabling automatic retransmission... 34
8.4 Message time stamping... 34
9 Description of MAC Sub-Layer... 34
9.1 General... 34
9.2 Services of MAC sub-layer... 34
9.3 Functional model of MAC sub-layer architecture... 40
9.4 Structure of MAC frames... 42
9.5 Frame coding... 54
9.6 Frame acknowledgement... 55
9.7 Frame validation... 55
9.8 Order of bit transmission... 55
9.9 Medium access method... 57
9.10 MAC data consistency... 59
9.11 Error detection... 60
9.12 Error signaling... 61
9.13 Overload signaling... 62
9.14 Bus monitoring... 62
9.15 Restricted operation... 63
10 PL Specification... 63
10.1 General and functional modelling... 63
10.2 Services of PL... 63
10.3 PCS specification... 65
10.4 AUI specification... 76
11 Description of Supervisor FCE... 77
11.1 Fault confinement... 77
11.2 Bus failure management... 82
12 Conformance... 82
Annex A (Informative) Additional Information... 83
A.1 Differences between Classical Frames and FD Frames... 83
A.2 Non-mandatory implementation features... 86
A.3 Implementation hints... 87
Bibliography... 88
Foreword
This document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document is Part 1 of GB/T 41588 Road Vehicles – Controller Area Network. GB/T 41588
has published the following parts.
--- Part 1.Data Link Layer and Physical Signaling;
--- Part 2.High-Speed Medium Access Unit;
--- Part 3.Low-Speed Fault-Tolerant, Medium-Dependent Interface;
--- Part 4.Time-Triggered Communication.
This Document equivalently adopts ISO 11898-1.2015 Road Vehicles – Controller Area
Network (CAN) – Part 1.Data Link Layer and Physical Signaling.
This Document made the following editorial modifications.
--- According to the requirements of GB/T 1.1, transfer the "Consistency" in Clause 2 to
Clause 12 of ISO11898-1.2015;
--- Add "ISO/IEC 8802-2" to the Normative References in Clause 2.
Please note some contents of this Document may involve patents. The issuing agency of this
Document shall not assume the responsibility to identify these patents.
This Document was proposed by Ministry of Industry and Information Technology of People’s
Republic of China.
This Document shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
Drafting organizations of this Document. Zhejiang Geely Holding Group Co., Ltd.; China
Automotive Technology and Research Center Co., Ltd.; China FAW Group Co., Ltd.; Great
Wall Motor Company Limited; Huizhou Desay SV Automotive Co., Ltd.; Xingkedi Technology
(Taizhou) Co., Ltd.; FAW-Volkswagen Automotive Co., Ltd.; Dongfeng Motor Group
Company Limited; SAIC GM Wuling Automobile Company Limited; Neusoft Group (Dalian)
Co., Ltd.; Pan-Asia Technical Automotive Center Co., Ltd.; CATARC Automotive Test Center
(Tianjin) Co., Ltd.; and CATARC (Tianjin) Automotive Engineering Research Institute Co., Ltd.
Drafting staffs of this Document. Hu Zhengnan, Zhen Haichuan, Wu Yonghui, Shan Bokai, Zhu
Tong, Ji Guotian,, Li Changlong, Liu Bin, Wu Yuzhi, Shi Xiaomi, Lv Liang, Fan Zhirong, Tan
Huaqiang, Ding Jie, Sun Wang, Liu Le, Han Guangsheng, Tan Tingyue, Che Changfa, Du
Road Vehicles – Controller Area Network (CAN)
– Part 1.Data Link Layer and Physical Signaling
1 Scope
This Document specifies the characteristics of setting up an interchange of digital information
between modules implementing the CAN data link layer. Controller area network is a serial
communication protocol, which supports distributed real-time control and multiplexing for use
within road vehicles and other control applications.
This Document specifies the Classical CAN frame format and the newly introduced CAN
Flexible Data Rate Frame format. The Classical CAN frame format allows bit rates up to 1
Mbit/s and payloads up to 8 byte per frame. The Flexible Data Rate frame format allows bit
rates higher than 1 Mbit/s and payloads longer than 8 byte per frame.
This Document describes the general architecture of CAN in terms of hierarchical layers
according to the ISO reference model for open systems interconnection (OSI) according to
ISO/IEC 7498-1.The CAN data link layer is specified according to ISO/IEC 8802-2 and
ISO/IEC 8802-3.
This Document contains detailed specifications of the following (see Figure 2).
--- logical link control sub-layer;
--- medium access control sub-layer;
--- physical coding sub-layer.
There are three implementation options. They are the following.
--- support of the Classical CAN frame format only, not tolerating the Flexible Data Rate
frame format;
--- support of the Classical CAN frame format and tolerating the Flexible Data Rate frame
format;
--- support of the Classical CAN frame format and the Flexible Data Rate frame format.
The last option is recommended to be implemented for new designs.
NOTE. Implementations of the first option can communicate with implementations of the third option
only as long as the Flexible Data Rate frame format is not used; otherwise, Error Frames are generated.
There are opportunities to run implementations of the first option also in CAN networks using the
Flexible Data Rate frame format, but these are not in the scope of this Document.
2 Normative References
The provisions in following documents become the essential provisions of this Document
through reference in this Document. For the dated documents, only the versions with the dates
indicated are applicable to this Document; for the undated documents, only the latest version
(including all the amendments) is applicable to this Document.
ISO/IEC 7498-1 Information Technology – Open Systems Interconnection – Basic
Reference Model. The Basic Model
NOTE. GB/T 9387.1-1998 Information Technology - Open Systems Interconnection - Basic
Reference Model - Part 1.The Basic Model (ISO/IEC 7498-1.1994, IDT)
ISO/IEC 8802-2 Information Technology – Telecommunications and Information
Exchange between Systems – Local and Metropolitan Area Networks – Specific
Requirements – Part 2.Logical Link Control
NOTE. GB/T 15629.2-2008 Information Technology - Telecommunications and Information
Exchange between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part
2.Logical Link Control (ISO/IEC 8802-2.1998, IDT)
ISO/IEC 8802-3 Information Technology – Telecommunications and Information
Exchange between Systems – Local and Metropolitan Area Networks – Specific
Requirements – Part 3.Standard for Ethernet
NOTE. GB/T 15629.3-2014 Information Technology - Telecommunications and Information
Exchange between Systems - Local and Metropolitan Area Networks - Specific Requirements - Part
3.Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and
Physical Layer (ISO/IEC 8802-3.2000, MOD)
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 Arbitration phase
Phase where the nominal bit time is used.
3.2 Bit stuffing
......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.