1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/J2836/4_201706 SURFACE VEHICLE INFORMATION REPORT J2836/4 JUN2017 Issued 2017-06 Use Cases for
5、 Diagnostic Communication for Plug-in Electric Vehicles RATIONALE The use cases described herein identify the diagnostic requirements and interactions to charge or discharge Plug-in Electric Vehicles (PEVs). Additional vehicle diagnostics are also included. If a charge session failed to occur, the P
6、EV customer and/or service personnel need to understand whether the PEV or EVSE caused the issue that resulted in a failure to charge. TABLE OF CONTENTS 1. SCOPE 3 1.1 Purpose . 3 1.2 Background . 3 2. REFERENCES 3 2.1 Applicable Documents 3 2.1.1 SAE Publications . 3 2.2 Related Publications . 3 2.
7、2.1 SAE Publications . 3 2.2.2 IEC Publications 4 3. DEFINITIONS . 4 4. TECHNICAL REQUIREMENTS 5 4.1 Basic Diagnostics 5 4.1.1 Control Pilot and Proximity Detection Circuit 5 4.1.2 Control Pilot Detectable Failures 6 4.1.3 Proximity Detection Circuit Detectable Failures 8 4.2 Indicators and Diagnost
8、ics 11 4.2.1 Operational and Fault Indicators on EVSE . 11 4.2.2 Operational and Fault Indicators on PEV 13 4.2.3 Diagnostic Trouble Codes (DTC) 13 4.3 Enhanced Diagnostics 14 4.3.1 Alerts from VM Service Centers 14 4.3.2 PEV Notifying Customers of Issues 14 4.3.3 Software Upgrades . 14 4.3.4 VM Spe
9、cific Functions . 14 SAE INTERNATIONAL J2836/4 JUN2017 Page 2 of 14 5. NOTES 14 5.1 Revision Indicator 14 Figure 1 Control pilot and detection circuit schematic and failure detection points 6 Table 1 Control pilot open circuit faults 7 Table 2 Control pilot short to ground faults 7 Table 3 Control p
10、ilot short to 16 V faults 8 Table 4 Detection circuit open circuit faults . 9 Table 5 Detection circuit short to ground faults 10 Table 6 Detection circuit short to 16 V faults . 10 Table 7 EVSE trouble code summary 11 Table 8 Diagnostic trouble code summary . 13 SAE INTERNATIONAL J2836/4 JUN2017 Pa
11、ge 3 of 14 1. SCOPE This SAE Surface Vehicle Technical Information Report, J2836/4, establishes diagnostic use cases between Plug-in Electric Vehicles (PEV) and the Electric Vehicle Supply Equipment (EVSE). As PEVs are deployed and include both Plug-In Hybrid Electric (PHEV) and Battery Electric (BE
12、V) Vehicle variations, failures of the charging session between the EVSE and PEV may include diagnostics particular to the vehicle variations. This document describes the general information required for diagnostics and J2847/4 will include the detail messages to provide accurate information to the
13、customer and/or service personnel to identify the source of the issue and assist in resolution. Existing vehicle diagnostics can also be added and included during this charging session regarding issues that have occurred or are imminent to the EVSE or PEV, to assist in resolution of these items. 1.1
14、 Purpose This document provides the general information which must be supported by SAE Recommended Practice J2847/4. 1.2 Background J1772 identifies Control Pilot and Proximity circuits for PEV charging. These circuits have included resistors in certain locations that allow analogue diagnostics for
15、(1) open circuits, (2) shorts to ground and (3) short to 12 V (or 16 V). Four points on the control pilot and five on the proximity circuit have been evaluated for these three failure conditions and this document summarizes the resulting effect and whether it is detectable or not. Additional version
16、s of this document are intended to include more information regarding from Interoperability testing to J2953. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE public
17、ations shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J1772 SAE Electric Vehicle and Plug in Hybrid Electric Vehicle Conductive Charg
18、e Coupler SAE J2953/1 Plug-In Electric Vehicle (PEV) Interoperability with Electric Vehicle Supply Equipment (EVSE) SAE J2953/2 Test Procedures for the Plug-In Electric Vehicle (PEV) Interoperability with Electric Vehicle Supply Equipment (EVSE) 2.2 Related Publications The following publications ar
19、e provided for information purposes only and are not a required part of this SAE Technical Report. 2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE
20、J1715 Hybrid Electric Vehicle (HEV) and Electric Vehicle (EV) Terminology SAE J2012 Diagnostic Trouble Code Definitions SAE INTERNATIONAL J2836/4 JUN2017 Page 4 of 14 2.2.2 IEC Publications Available from IEC Central Office, 3, rue de Varembe, P.O. Box 131, CH-1211 Geneva 20, Switzerland, Tel: +41 2
21、2 919 02 11, www.iec.ch. IEC 61851-1 Electric vehicle conductive charging system Part 1: General requirements IEC 62196-1 Plugs, socket-outlets, vehicles connectors and vehicle inlets - conductive charging of electric vehicles 3. DEFINITIONS 3.1 CHARGER An electrical device that converts alternating
22、 current energy to regulated direct current for replenishing the energy of a rechargeable energy storage device (i.e., battery) and may also provide energy for operating other vehicle electrical systems. 3.2 ELECTRIC VEHICLE SUPPLY EQUIPMENT (EVSE) This is the generic term used to describe the devic
23、e that is physically connected and provides energy to the vehicle. EVSEs may take several physical forms, and their logical function may likewise differ substantially. Physical forms include a mobile cord set used for 120 VAC charging, a fixed or wall-mounted 240 VAC charger, or an off-board DC char
24、ger. An EVSE may also support reverse power flow (discharging). 3.3 ENERGY PORTAL Energy Portal is any charging point for a PEV. At a minimum, the Energy Portal is a 120 V, 15 A outlet for AC L1, but can also be a 208/240 V Electric Vehicle Supply Equipment (EVSE) outlet for AC L2 connected to the p
25、remises circuit. More information on AC L1 and AC L2 is described in J1772. 3.4 ENERGY TRANSFER STRATEGY A strategy that accounts for all of the electrical energy needs of an EV and the present status of all on-board equipment, including the EV Storage Battery. It determines the rate that energy is
26、to be transferred to the EV and how the ETS shall be operated to accomplish this. 3.5 HOME AREA NETWORK (HAN) A HAN is an energy related network, contained within a premises used for communicating with devices within the premises. HANs do not necessarily require connectivity outside the premises, bu
27、t may be connected to one or more external communication networks (e.g., Utility AMI, internet, cell phone network, etc.) using gateways, bridges, and interfaces. 3.6 INTEROPERABILITY The condition where components of a system, relative to each other, are able to work together to perform the intende
28、d operation of the total system. Information interoperability is the capability of two or more networks, systems, devices, applications, or components to share and readily use information securely and effectively with little or no inconvenience for the user. As an example, a 10 mm box-end hand wrenc
29、h and a 10 mm socket wrench are interoperable, relative to a 10 mm hex-head bolt. The wrench and the bolt are both parts of a fastening system. The fact that the system performs as required with either wrench establishes the interoperability of the wrenches and the bolt. 3.7 PLUG-IN ELECTRIC VEHICLE
30、 (PEV) This is the generic term used to describe any vehicle that plugs in to receive electrical energy. This includes many different classifications of vehicles, such as Battery Electric Vehicle (BEV), Plug-in Hybrid Electric Vehicle (PHEV), Extended-Range Electric Vehicle (E-REV), and so on. SAE I
31、NTERNATIONAL J2836/4 JUN2017 Page 5 of 14 4. TECHNICAL REQUIREMENTS 4.1 Basic Diagnostics J1772 identifies the function and levels for the control pilot and detection circuit. 4.1.1 Control Pilot and Proximity Detection Circuit J1772 includes resistors in both the Control Pilot and Proximity Detecti
32、on circuits for state changes and diagnostics. Certain failures however are still not detectable and indicators are included on the vehicle and EVSE that provide additional status to customers for some of these non-detectable failures. The type of indicator and specific location for these is not ide
33、ntified, but are required on both the EVSE and the PEV. An indicator on the EVSE assists the customer that the EVSE has power from the grid. An indicator on the vehicle advises the customer that the EVSE is connected to the vehicle, and the proper states have occurred for the charge cycle to commenc
34、e. The Control Pilot functions that are identified in J1772 are as follows: State A - Not connected 1. EVSE provides 12 V on Pilot circuit. 2. Infra connector is engaged with Vehicle connector to proceed to State B. State B Connected, but not ready to accept energy 3. Vehicle resistor R3, drops the
35、12 V to 9 V and wakes up vehicle electronics. 4. The EVSE detects the pilot circuit drop to 9 V and starts the PWM generator, unless an EVSE Scheduled charge is programmed. In that case, the pilot stays at “B1” or no PWM until the Scheduled charge expires, then start the PWM for state “B2”. State C
36、- Vehicle ready to accept energy 5. The vehicle reads a valid PWM value identifying Available Line Current (ALC) and closes S2. 6. EVSE senses the Pilot PWM drop from 9 V to 6 V or 3 V (vehicle ready to accept charge), closes switches supplying 120 V or 240 V power to the vehicle. 7. Vehicle charger
37、 starts the charging session at AC L1 or L2. State A within this document however, is not actually State A for this Control Pilot analysis. State A is defined as “not connected” that means the cord is on the wall (EVSE) or in the trunk. This state does not require diagnostics. This evaluation is the
38、refore identifying State A as the “start of connecting” and “proceeding into State B” (e.g., the vehicle is powering up, and the EVSE is starting the PWM generator). State B is evaluated as “connected, but not ready to accept energy”. This means the vehicle is awake, the EVSE has started the PWM gen
39、erator, then the fault occurred. State C is evaluated as “vehicle ready to accept energy”. This means the vehicle has closed S2, the EVSE has closed the contactors. SAE INTERNATIONAL J2836/4 JUN2017 Page 6 of 14 4.1.2 Control Pilot Detectable Failures The control pilot circuit can fail due to shorts
40、, both high and low and opens at four locations. Figure 1 identifies the schematic for this and the points for diagnostics, P1 through P4. Tables 1, 2, and 3 identify the conditions due to open circuits, short to ground and short high respectively at locations P1 through P4. Figure 1 also includes t
41、he position for the detection circuit that can also fail due to shorts, both high and low and opens at five locations identified as D1 through D5. Tables 4, 5, and 6 identify the conditions due to open circuits, short to ground and short high respectively at locations D1 through D5. ElectricSupplyVe
42、hicleChargerEVSE Control BoxBatteryIsolationMonitorGFITVSDR3R2S2R4R5R6R7S3+5V (Regulated)BufferVehicle InletEVSE Connector12345GndL2 or NL1Charge ControllerCharge Status IndicatorAC Present IndicationEquipment GroundControl Electronics+12V R1S1PWMMonitoring circuitD1D2D3D5P4, D4P3P2P1Figure 1 - Cont
43、rol pilot and detection circuit schematic and failure detection points SAE INTERNATIONAL J2836/4 JUN2017 Page 7 of 14 Table 1 shows the Open Circuit conditions for the Control Pilot. Table 1 - Control pilot open circuit faults Pilot Sense - Fault = Open Circuit (OC) Mode Fault Location P1 P2 P3 P4 S
44、tate A (connected & transition to State B) (Power Mode=RUN) Indeterminate (Vehicle does not wake up) Not required Indeterminate (Vehicle does not wake up). Same as not connected. Indeterminate (Vehicle does not wake up). Same as not connected. State B (Connected) (Power Mode=OFF) Pilot PWM drops to
45、zero, vehicle powers down & sets DTC. When vehicle closes S2, it detects no voltage change (9 V to 6 or 3 V) & sets DTC. Pilot PWM drops to zero, reverts back to State A. Sets DTC. Pilot PWM drops to zero, reverts back to State A. Sets DTC. State C (Charging) (Power Mode=OFF) Pilot PWM drops to zero
46、, opens S2, reverts back to State B. Sets DTC. Vehicle detects voltage change back to 9 V & sets DTC. Pilot PWM drops to zero, vehicle powers down & sets DTC. Pilot PWM drops to zero, vehicle powers down & sets DTC. Table 2 shows the Short Circuit to Ground for the Control Pilot. Table 2 - Control p
47、ilot short to ground faults Pilot Sense - Fault = Short Circuit to Ground Mode Fault Location P1 P2 P3 P4 State A (Not connected) (Power Mode=RUN) Indeterminate (Vehicle does not wake up) Not required Indeterminate (Vehicle does not wake up). Same as not connected. No impact (ground short to ground)
48、 State B (Connected) (Power Mode=OFF) Pilot PWM drops to zero, vehicle powers down & sets DTC. Prior to vehicle closing S2, it detects 6 or 3 V, instead of 9 V, & sets DTC. Pilot PWM drops to zero, vehicle powers down & sets DTC. No impact (ground short to ground) State C (Charging) (Power Mode=OFF)
49、 Pilot PWM drops to zero, vehicle powers down & sets DTC. Unable to end charge by opening S2. Pilot PWM drops to zero, vehicle powers down & sets DTC. No impact (ground short to ground) SAE INTERNATIONAL J2836/4 JUN2017 Page 8 of 14 Table 3 shows the Short Circuit to Low Voltage Power (16V) for the Control Pilot. Table 3 - Control Pilot Short to 16 V Faults Pilot Sense - Fault = Short Circuit to 16 V Note: 16 V is the expected high
