GB/T 42691.8-2023 PDF English
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Road vehicles - Local Interconnect Network(LIN) - Part 8: Electrical physical layer(EPL) specification: LIN over DC powerline(DC-LIN)
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GB/T 42691.8-2023: Road vehicles - Local Interconnect Network(LIN) - Part 8: Electrical physical layer(EPL) specification: LIN over DC powerline(DC-LIN)
---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/GBT42691.8-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.15
CCS T 36
GB/T 42691.8-2023 / ISO 17987-8:2019
Road Vehicles – Local Interconnect Network (LIN) – Part 8:
Electrical Physical Layer (EPL) Specification: LIN over DC
Powerline (DC-LIN)
(ISO 17987-8:2019, IDT)
ISSUED ON: MAY 23, 2023
IMPLEMENTED ON: DECEMBER 01, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 5
1 Scope ... 7
2 Normative References ... 7
3 Terms, Definitions, Symbols, and Abbreviated Terms ... 8
3.1 Terms and definitions ... 8
3.2 Symbols and abbreviated terms ... 9
4 Electrical Physical Layer Requirements ... 13
4.1 General ... 13
4.2 Transmitter characteristics ... 14
4.3 Timing requirements ... 27
4.4 Receiver characteristics ... 30
4.5 Electrical parameters ... 30
4.6 Communication in the presence of faults ... 38
Annex A (Informative) DC-LIN EPL Peripheral Interface Design Considerations ... 39
Annex B (Normative) DC-LIN EPL Conformance Test Plan ... 40
B.1 General ... 40
B.2 General test plan specification considerations ... 40
B.3 Transmitter characteristics timing ... 48
B.4 Receiver characteristics timing ... 60
B.5 DC-LIN EPL compliance to ISO 17987-6 ... 65
Bibliography ... 66
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 8 of GB/T 42691 Road Vehicles – Local Interconnect Network (LIN).
GB/T 42691 has published the following parts:
--- Part 1: General Information and Use Case Definition;
--- Part 2: Transport Protocol and Network Layer Services;
--- Part 3: Protocol Specification;
--- Part 4: Electrical Physical Layer (EPL) Specification 12V/24V;
--- Part 5: Application Programmers Interface (API);
--- Part 6: Protocol Conformance Test Specification;
--- Part 7: Electrical Physical Layer (EPL) Conformance Test Specification;
--- Part 8: Electrical Physical Layer (EPL) Specification: LIN over DC Powerline (DC-LIN).
This Document equivalently adopts ISO 17987-8:2019 Road Vehicles – Local Interconnect
Network (LIN) – Part 8: Electrical Physical Layer (EPL) Specification: LIN over DC Powerline
(DC-LIN).
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 the Ministry of Industry and Information Technology of the
PRC.
This Document shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
Drafting organizations of this Document: China FAW Group Co., Ltd.; China Automotive
Technology and Research Center Co., Ltd.; Great Wall Motor Company Limited; Geely
Automobile Research Institute (Ningbo) Co., Ltd.; Pan-Asia Technical Automotive Center Co.,
Ltd.; Dongfeng Motor Group Co., Ltd.; FAW-Volkswagen Automotive Co., Ltd.; Huizhou
Desay SV Automotive Co., Ltd.; Beijing National New Energy Vehicle Technology Innovation
Center Co., Ltd.; SAIC-GM-Wuling Automobile Co., Ltd.; CATARC (Tianjin) Automotive
Engineering Research Institute Co., Ltd.; CATARC (Tianjin) Automotive Inspection Center Co.,
Ltd.; and SAIC Maxus Automotive Co., Ltd.
Road Vehicles – Local Interconnect
Network (LIN) – Part 8: Electrical Physical Layer
(EPL) Specification: LIN over DC Powerline (DC-LIN)
1 Scope
This document specifies an additional electrical physical layer (EPL) requirements for the Local
Interconnect Network (LIN), including electrical characteristics, the modulation method of
transmission, and how to apply the carrier signal to the DC power line. It specifies the
transmission over DC powerline without affecting the LIN higher layers (hereafter named DC-
LIN).
The DC-LIN EPL uses a high-frequency modulated carrier to propagate UART bytes (byte-
oriented) over the DC powerline.
The DC-LIN EPL supports bit rates of 9 615 bit/s, 10 417 bit/s, and 19 230 bit/s.
The DC-LIN EPL is applicable for a wide range of DC powerlines including 12-V and 24-V
operations, allowing communicating between different DC powerlines via a coupling capacitor.
A DC-LIN EPL interface to powerline example is described in Annex A.
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.
GB/T 42691.4-2023 Road vehicles - Local Interconnect Network (LIN) - Part 4: Electrical
physical layer (EPL) specification 12 V/24 V (ISO 17987-4:2016, IDT)
ISO 17987-6 Road vehicles – Local Interconnect Network – Part 6: Protocol conformance
test specification
NOTE: GB/T 42691.6-2023 Road vehicles - Local Internet Network (LIN) - Part 6: Protocol
conformance test specification (ISO 17987-6:2016, IDT)
Annex B
(Normative)
DC-LIN EPL Conformance Test Plan
B.1 General
This annex specifies the DC-LIN EPL conformance test plan.
B.2 General test plan specification considerations
B.2.1 Test conditions
The tests shall be done at room temperature in a range of 15 °C ~ 35 °C.
B.2.2 Test case structure
In the description of each test case, it is specified, for which DC-LIN EPL type the test case is
applicable, for master or slave node.
Each specification of a test case consists of nine parts.
— CTC # – Title
A common prefix for the conformance test case.
— Purpose
Brief statement outlining what the test case attempts to achieve.
— Reference
Defines the reference to this or other parts of the ISO 17987 series.
— Prerequisite
Defines the test set-up.
— Set-up
Defines the IUT configuration (see B.2.4.5).
— Step
Defines the test step/s for carrying out the test case.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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