IEC TS 61851-3-4:2023

Electric vehicles conductive charging system - Part 3-4: DC EV supply equipment where protection relies on double or reinforced insulation - General definitions and requirements for CANopen communication

IEC TS 61851-3-4:2023 This part of IEC 61851, which is a Technical Specification, applies to CANopen communication for the conductive transfer of electric power between the supply network and an electric road vehicle or a removable rechargeable energy storage system (RESS) or on-board rechargeable energy storage systems (RESS) of an electric road vehicle.
The energy management system (EMS) for control of power transfer between battery systems and voltage converter units (VCU) provides the communication for all devices that can take part in energy management control.
The basic application profile for energy management systems (EMS) consists of IEC TS 61851-3-4, IEC TS 61851-3-5, IEC TS 61851-3-6, IEC TS 61851-3-7.

General Information

• Status: Published
• Publication Date: 17-Jul-2023
• ICS: 43.120 - Electric road vehicles
• Technical Committee: TC 69 - Electrical power/energy transfer systems for electrically propelled road vehicles and industrial trucks
• Drafting Committee: WG 10 - TC 69/WG 10
• Current Stage: PPUB - Publication issued
• Start Date: 31-Oct-2022
• Completion Date: 18-Jul-2023

Standards Content (Sample)

IEC TS 61851-3-4 ®
Edition 1.0 2023-07
TECHNICAL
SPECIFICATION
colour
inside
Electric vehicles conductive charging system –
Part 3-4: DC EV supply equipment where protection relies on double or
reinforced insulation – General definitions and requirements for CANopen
communication
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IEC TS 61851-3-4 ®
Edition 1.0 2023-07
TECHNICAL
SPECIFICATION
colour
inside
Electric vehicles conductive charging system –

Part 3-4: DC EV supply equipment where protection relies on double or

reinforced insulation – General definitions and requirements for CANopen

communication
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120 ISBN 978-2-8322-5730-2

– 2 – IEC TS 61851-3-4:2023  IEC 2023
CONTENTS
FOREWORD . 8
INTRODUCTION . 10
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
4 Symbols and abbreviated terms . 16
5 General conditions for the tests . 17
6 Physical layer specification . 18
6.1 General . 18
6.2 Medium access unit . 18
6.3 Transmission rates. 18
6.4 Node-ID assignment . 18
6.5 Network topology . 19
6.6 Gateway . 19
7 Error handling . 19
7.1 General . 19
7.2 Enhancement of the emergency message handling . 19
7.3 Pre-defined error field . 21
7.4 Error behaviour . 21
7.5 Additional error codes . 22
8 Operating principles . 23
8.1 General . 23
8.2 Functional description . 23
8.2.1 General . 23
8.2.2 Voltages, currents, loads . 23
8.2.3 Activating of the energy management system (EMS) . 24
8.2.4 Connection and disconnection of devices . 25
8.2.5 "Sleep" . 25
8.3 Use case specific definitions for EMSs in EVs . 25
8.3.1 General . 25
8.3.2 EMS in operation . 25
8.3.3 Design and implementation for EV supply system configurations Types
"A-F" . 26
8.4 Virtual architecture of the EMS . 31
8.4.1 General . 31
8.4.2 Standard virtual EMS control network . 31
8.4.3 General application object (GAO) . 32
8.4.4 Energy management system controller (EMSC) . 33
8.4.5 Voltage converter unit (VCU) . 33
8.4.6 Battery system . 33
8.4.7 Security unit (optional) . 34
8.4.8 Manufacturer-specific virtual devices (optional) . 34
9 Finite state automaton (device modelling) . 34
9.1 General . 34
9.2 EMS finite state automaton (FSA) . 35
9.2.1 State definition . 35

9.2.2 Transitions of the EMS FSA . 37
10 General CANopen communication capabilities in EMSs . 38
10.1 Network management . 38
10.2 SDO communication . 39
10.3 PDO communication . 39
10.4 Bootloader . 39
10.4.1 General . 39
10.4.2 Bootloader mode . 39
10.4.3 Starting and stopping the application program . 40
10.4.4 Application program file format . 41
10.4.5 Error management . 45
11 Representation of analogue values . 45
11.1 General . 45
11.2 Representation of generic analogue values . 45
11.2.1 Percent . 45
11.2.2 Temperature . 45
11.2.3 Temperature rate (∆T) . 45
11.2.4 Time (days) . 45
11.2.5 Time (minutes) . 45
11.2.6 Time (milliseconds) . 45
11.3 Electrical-related analogue value representation . 46
11.3.1 Current . 46
11.3.2 Electric charge. 46
11.3.3 Electric charge (for statistical purposes) . 46
11.3.4 Electric charge rate . 46
11.3.5 Energy power (for statistical purposes) . 46
11.3.6 Energy power . 46
11.3.7 Frequency . 46
11.3.8 Power . 46
11.3.9 Power factor . 46
11.3.10 Resistor . 46
11.3.11 Voltage . 46
11.4 Mechanical-related analogue value representation (optional) . 46
11.4.1 Angle/circular position . 46
11.4.2 Distance (long) . 47
11.4.3 Distance (short) . 47
11.4.4 Force . 47
11.4.5 Rotational speed. 47
11.4.6 Revolutions . 47
11.4.7 Torque . 47
11.4.8 Velocity . 47
11.5 Optical-related analogue value representation – Colour/brightness . 47
Annex A (informative) System architecture and use cases . 48
A.1 General . 48
A.2 Application profile for EMS . 48
A.2.1 General . 48
A.2.2 Maximum possible devices on a virtual EMS control network . 48
A.2.3 Minimum virtual EMS control network . 49
A.3 General application object.
...