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BS ISO 15765-4:2021

BS ISO 15765-4:2021

$167.15

Road vehicles. Diagnostic communication over Controller Area Network (DoCAN) – Requirements for emissions-related systems

Published By Publication Date Number of Pages
BSI 2021 34
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This document specifies requirements for CAN-based communication systems between the in-vehicle network and the diagnostic link connector of the vehicle. This document does not specify any requirements related to the in-vehicle CAN network architecture. This document specifies the requirements to enable the in-vehicle CAN-based communication systems to establish, maintain, and terminate communication with the devices connected to the diagnostic link connector.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and abbreviated terms
4.1 Symbols
11 4.2 Abbreviated terms
12 5 Conventions
6 Application
6.1 Vehicle communication initialisation sequence
6.1.1 OBDonUDS protocol identification
6.1.2 OBDonEDS protocol identification
6.1.3 Others
6.2 External test equipment communication initialisation sequence
13 6.3 Bit rate validation procedure
6.3.1 bitrateRecord
6.3.2 Bit rate validation
14 6.3.3 External test equipment error detection provisions
15 6.4 CAN identifier validation procedure
6.4.1 CAN identifier validation procedure OBDonEDS
17 6.4.2 CAN identifier validation procedure OBDonUDS
19 6.5 Support of ECUNAME reporting
7 Application layer (AL)
20 8 Session layer (SL)
9 Transport layer (TL)
10 Network layer (NL)
10.1 General
10.2 Parameter definitions
10.2.1 Timing parameter values
21 10.2.2 Definition of flow control parameter values
22 10.2.3 Maximum number of OBDonUDS or OBDonEDS ECUs
23 10.3 Addressing formats
10.3.1 Normal and normal fixed addressing format
10.3.2 Functional addressing
10.3.3 Physical addressing
24 10.4 CAN identifier requirements
10.4.1 External test equipment
10.4.2 OBDonUDS or OBDonEDS server/ECU
10.5 Mapping of diagnostic addresses
10.5.1 OBDonUDS/OBDonEDS CAN identifiers
25 10.5.2 11-bit CAN identifiers
26 10.5.3 29-bit CAN identifiers
11 Data link layer (DLL)
12 Physical layer (PHY)
12.1 General
27 12.2 Bit rates
12.3 CAN bit timing
12.3.1 Parameter values
28 12.3.2 Nominal bit rate 250 kbit/s
12.3.3 Nominal bit rate 500 kbit/s
29 12.4 External test equipment
12.4.1 Electrical parameters
32 12.4.2 Cable parameters
33 Bibliography

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BS ISO 15765-4:2021
$167.15