evi electrical vehicle interface...15118 and din 70121 standards for dc charge. interoperability the...

EVI

Electrical Vehicle Interface

The given values are susceptible to change without prior notice.

[email protected] +33 1 75 95 11 50

[email protected] +1 346-223-0379

wattandwell.com Revision date: 2021-02

OVERVIEW

EVI is a dual standard EV Interface board with all required signals for CCS/Combo and CHAdeMO communications. EV communications stack can be pre-installed for Combo (DIN70121 and ISO15118) and CHAdeMO or you can use your own stacks In addition, EVI is capable of acting as a main controller for the charging process. It is readily compatible with

• EVSE supervisor (via CANopen bus)

• Power Units for DC charging (MPU-25) An optional extension board (EVIX) can add additional functions suchs as:

• 6 drivers for DC contactors

• Hardware-based addressing of 6 power units

FEATURES

CHAdeMO protocol compatible o 12V/2A auxiliary supply o Ground Fault Monitoring o Isolated battery voltage measurement o Proximity detection, Charge sequence

Charge permission and Lock mechanism drivers

CCS/COMBO protocol compatible Cable temperature measurement Powerful computing capabilities o SoC with 4 Cortex-A53 cores (64-bits)

running at 1.2GHz (Broadcom BCM2837B0) o 1 GB of LPDDR2 RAM o 16 GB eMMC Flash o Chipset (microcontroller based) for security

functions CANopen compatible digital bus with

advanced control, monitoring and logging capabilities

BLOCK DIAGRAM

Communication RAPID PROTOTYPING

E-MOBILITY

EV CHARGERS

mailto:[email protected]

http://www.wattandwell.com/


EVI-Cx-Ax datasheet

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EVI datasheet (revAB)

2 Product datasheet. The given values are susceptible to change without prior notice.

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WARNING This equipment operates at voltages and currents that can result in electrical shock, fire hazard and/or personal injury if not properly handled or applied. Equipment must be used with necessary caution and appropriate safeguards employed to avoid personal injury or property damage. This board must be used only by qualified engineers and technicians’ familiar with risks associated with handling high voltage electrical and mechanical components, systems and subsystems.


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Contents

1. Absolute maximum ratings .................................................................................................... 5

2. Electrical Characteristics ........................................................................................................ 5

3. Introduction .......................................................................................................................... 6

4. Hardware specification .......................................................................................................... 7

EVI theory of operation ............................................................................................................ 7 HV DC voltage measurements ........................................................................................................ 7 Insulation monitoring device (IMD) ................................................................................................ 8 CHAdeMO communication & interfaces ......................................................................................... 9 COMBO communication & interfaces ........................................................................................... 11 EVI interfaces .......................................................................................................................... 13

4.2.1. Connectors .......................................................................................................................... 13 Low voltage connector .................................................................................................................. 13 USB port ........................................................................................................................................ 14 HDMI port ..................................................................................................................................... 14 COM connector ............................................................................................................................. 14 Emergency Shutdown ................................................................................................................... 15 CHAdeMO signals ......................................................................................................................... 16 COMBO signals ............................................................................................................................. 17 Extension board (EVIX) Interfaces .......................................................................................... 19 Address selector and Charge Permission. ..................................................................................... 19 Contactor command ..................................................................................................................... 20

5. Software specifications ....................................................................................................... 21

System architecture ................................................................................................................ 21 Multi EVI configuration .......................................................................................................... 21 System communication .......................................................................................................... 22

5.3.1. Communication Characteristics .......................................................................................... 22 5.3.2. Process data objects (PDO) mapping .................................................................................. 23

Chipset status and State Machine .......................................................................................... 24 5.4.1. States machine states description ...................................................................................... 25 5.4.2. State machine transitions ................................................................................................... 26

Plug module status and State Machine .................................................................................. 27 Power Module status and State Machine .............................................................................. 29

6. Mechanical specifications .................................................................................................... 30

7. Graphical User Interface ...................................................................................................... 32

8. Safety instructions .............................................................................................................. 32

Caution ................................................................................................................................... 32 Installation .............................................................................................................................. 32 Parts substitution and modifications ..................................................................................... 32 Environmental condition ........................................................................................................ 32 Normative compliance ........................................................................................................... 33 Disposal .................................................................................................................................. 33

9. Installation .......................................................................................................................... 34

Mechanical installation .......................................................................................................... 34


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Electrical installation .............................................................................................................. 34

10. Maintenance ................................................................................................................... 34

11. Ordering information ....................................................................................................... 35


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1. Absolute maximum ratings

Parameter Condition Min Max Units

LV Input Voltage (all versions) 0 30 V

DC side voltage 0 600 V

Operating Temperature -10 70 °C

Long term storage Temperature -0 70 °C

Temperature change rate 5 °C/min

Table 1: Absolute maximum ratings

2. Electrical Characteristics All specifications are given for the full temperature range unless otherwise noted

Parameter Condition

Value

Units Min Typ Max

DC Side

Voltage measurement range 500 V

Voltage measurement initial accuracy Full load 3 %

CAN communication

CAN baudrate 500 kbps

CAN common mode range -7 7 V

LV Input

Supply voltage 9 24 29 V

Input current 0.25 0.5 A

Under Voltage Shutdown 9 V

Table 2: Electrical characteristics


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3. Introduction EVI is a dual standard Supply Equipment Communication Controller (SECC) that includes all required signals for CCS/Combo (DIN70121 and ISO15118) and CHAdeMO to interface the interfaces the EV Charging Controller (EVCC). A powerful processor run the EV communications stack and/or other demanding applications (OCPP, EVSE master, etc) EV communications stack can be pre-installed for Combo (DIN70121 and ISO15118) and CHAdeMO (0.9 to 1.2) or you can use your own stacks In addition, EVI is capable of acting as a main controller for the charging process. It is readily compatible with

• EVSE supervisor (via CANopen bus)

• Power Units for DC charging o MPU-25 (unidirectional charging) o BMPU-11 (bidirectionnal charging)

An optional extension board (EVIX) can add additional functions suchs as:

• 6 drivers for DC contactors Hardware-based addressing of 6 power units

Designed for smart grid applications, it features a modular conception capable of independent multi-charge point (CHAdeMO and Combo) and can control up to 6 MPU-25 power units in a high-power system up 150 kW. EVI board is designed to be integrated in Smart Grid network as EVSE charging station.

Figure 1: EVI, EVIX and MPU in EVSE architecture


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4. Hardware specification

EVI theory of operation

HV DC voltage measurements

EVI features 2 input ports for isolated HV DC voltage measurements (1 for CHAdeMO and 1 for Combo CCS). These measurements allow the charge protocol software to ensure that output DC voltage is as requested by the EV and is also used in Insulation measurement feature. (See b) Insulation monitoring)

Figure 2: HV DC voltage isolated measurement


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Insulation monitoring device (IMD)

An Insulation Monitoring Device (IMD) detects ground faults in the secondary (DC side) circuit of a charger. It works by measuring earth leakage current using a grounding resistor between the DC power lines DC+/DC- and earth (enclosure and chassis). Through this document the term IMD is used but on some standards is referred as Ground fault detector (CHAdeMO), Earth leakage current measuring devices (IEC 61851-23 System AA). They all refer to the same circuit EVI features an IMD that monitors continuously the insulation between DC+ and PE and between DC- and PE.

Figure 3:Insulation DC+ to PE and DC- to PE monitoring


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CHAdeMO communication & interfaces

The communication between the EVI module and the EV is compliant with CHAdeMO normative specifications from versions 0.9 to 1.2. The CAN bus is galvanically isolated for enhanced EMC and resilience. It complies with

• Standard: ISO11898-1, ISO11898-2

• Protocol: CAN 2.0B Active

• Baud-rate: 500kbps

• Bit sample point: 72.5% to 87.5%

Interoperability

The EVI module is following the CHAdeMO standard and is working will all EVs supporting this standard. It has been validated with the following EVs: Tesla model S 2013, Nissan Leaf.

Charge Permission - Switch K:

Charge Permission is a mandatory safety function for CHAdeMO systems (System A in IEC 61851-23) also known as Charging Enable/Disable or CP3. It is required that the charger shall stop charging when it receives a stop instruction by either ‘control signal’ or ‘CAN communication’. In order to process the stop instruction without fail, the ‘vehicle charge permission’ line of the control signal circuit shall directly be connected to the inverter circuit of the charger, and charging shall be securely stopped by terminating the inverter circuit compulsorily without interposing process of any circuit medium such as CPU if the ‘vehicle charge permission’ line is changed to OFF. As such, EVI board transmits the Charge Permission signal sent by the vehicle to the charger rectifier

Figure 4: Charge Permission acquisition from EV and transfer to charger

In systems with multiple charging points (or ‘outlets’) and multiple charging rectifiers, transfer of the charger permission to correct rectifier (the one actually powering the active outlet) is supported with the extension board (see EVIX in 4.3). Without CPU intervention, EVIX propagates the Charger Permission signal based on the state of the switches. Note: on Combo systems, Charge Permission output is emulated by an always enabled. This allows for support of systems with dual CHAdeMO and Combo outlets. Optionally, the charge permission


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functionality can be used for a secure Emergency Shutdown propagation in systems with multiple outputs to avoid shutting down the whole installation

Lock

Lock signal is used to lock/unlock Power connector of Vehicle to Charger mechanically. Lock monitoring of connector is done by measuring current going through Lock + and Lock-.

Figure 5: Lock control and monitoring

Proximity detection:

Figure 6: Proximity detection principle

Temperature monitoring (CHAdeMO)

Two temperature measurements channels for NTC type thermistors are available.


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COMBO communication & interfaces

The communication between the EVI module and the Electrical Vehicle is compliant with the ISO 15118 and DIN 70121 standards for DC charge.

Interoperability

The EVI module is following the ISO 15118 and DIN 70121 standards and is working with all EVs supporting these standards. It has been validated with the following EVs: BMW i3, Renault Zoé2, Jaguar I-Pace, Hyunday Ioniq, Kia e-Niro, Tesla model S 2013, PSA DS3 crossback e-tense and the Volkswagen e-Up. It has been validated with the ComboCS testing tool. See ComboCS datasheet: www.trialog.com/wp-content/uploads/2020/05/ComboCS_CCS-EV-Tester_Datasheet_v2.pdf. It has participated to the 2019 CharIN Testival testing event.

COMBO interfaces

Control Pilot

Implemented as specified in “IEC61851-1 A.2 Control pilot”.

Figure 7: Control pilot

Proximity pilot

Proximity Pilot is used to detect the presence of a connector in the vehicle in the inlet. EVSE connector In Combo 1 (configuration EE, mostly used in the US and Japan), it includes an optional Switch S3 for prevention of unintentional live disconnect.

(source Wikipedia https://en.wikipedia.org/wiki/SAE_J1772)


http://www.trialog.com/wp-content/uploads/2020/05/ComboCS_CCS-EV-Tester_Datasheet_v2.pdf

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In Combo 2 (configuration FF, mostly used in Europe), the resistor of the connector can be used for current coding the cable

Figure 8: Equivalent circuit diagram for simultaneous proximity detection and current coding (source: Figure B.2 on IEC 61851-1:2019)

In both cases, proximity pilot is not a seen by a SECC (EVSE side controller).

Temperature monitoring (COMBO)

Two temperature measurements channels for Pt100 type thermistors are available. Each measurement is done with a Wheatstone bridge as show below

Figure 9: Wheatstone bridge for Pt1000 temperature measurement


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EVI interfaces

4.2.1. Connectors

Low voltage connector

LV connector is used to supply power to fans and control independently of the DC or AC supplies. Connector Reference (converter side): Phoenix Contact MSTBA 2,5/ 2-G-5,08 1757242 and is in the front panel Recommended mating connector (wire harness side):

• FKC 2,5/ 2-ST-5,08 1873058 (Push-in spring connection)

• MSTBP 2,5/ 2-ST-5,08 – 1769010 (Screw connection)

Figure 10: Low voltage connector

PIN FUNCTION DESCRIPTION Preferred wiring color

1 LV_IN- Low Voltage supply return (0V typ) Black

2 LV_IN+ Low Voltage supply (14V typ) Red


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USB port

USB port is USB-Mini Type connector This port is used for communication with embedded Linux

HDMI port

Reserved for internal use.

COM connector

EVI features a galvanically isolated CAN bus for digital communications with other boards. The COM connector is a double RJ45 connector to enable easier connection of several Units in the same bus. Both side (A-side and B-side) are connected internally.

Figure 11 : COM connector (double RJ45) front view

Table 3 – COM connector pinout

PIN FUNCTION DESCRIPTION

1 CANA H CAN differential +

2 CANA L CAN differential -

3 CAN_GND Ground reference for CAN

4 EmShut_Rtn Emergency Shutdown return line (negative)

5 EmShut Emergency Shutdown (positive)

6 Shield Optional shield. Internally connected to PE

7 GND CAN Ground reference for CAN

8 Not Used

Note on CAN bus termination: CAN bus is expected to be terminated at each bus end with a 120 Ω resistance. Wiring should be selected to have an intrinsic impedance of the twisted that match this 120 Ω. By default, EVI does include a 120 Ω resistor

Figure 12: CAN transceiver simplified diagram

Note on CAN bus shield: Although ISO-11898-2 does not specify the wires type or the need for a shield, a shielded cable is recommended for electronically harsh environments. It is recommended to ground the shield at a single point on the dedicated Shield pin of the COM connector to avoid ground loops.


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Also, remember that the CAN bus being isolated, the CAN_GND should be wired between nodes (preferred) or connected to Protective Earth (less recommended for long distances) Recommended connection for CAN bus: EVI uses a common CAN pinout for RJ45 connectors. Some commercial CAN transceiver uses a 9 pin Sub-D socket connector (also known as female DB9 header) as interface (such as NI CAN 8473 which features a DB9 header connector). The recommended adaptor pinout is as follows:

Signal Name Pin in EVI COM connector

Pin in DB9 (female)

CAN_H 15 7

CAN_L 8 2

CAN_Ref 12 3

CAN_Shield 5 5

Table 4: Recommended pinout for a CAN RJ45 to DB9 adaptor

Emergency Shutdown

The COM connector also transmits an optional Emergency Shutdown (EmShut) signal. This signal can be used to trigger an unconditional shutdown of the EVI operation. See Table 3 for the pinout of EmShut within the COM connector By default, EVI the EmShut function is disabled, contact factory to enable it (a firmware upgrade is required) In addition, a fast discharge circuit can be enabled to discharge the internal output capacitors to a safe level (<<60V) in less than 1 second EmShut logic is active low

• ‘0’ (0mA or unconnected) Emergency Shutdown triggered • ‘1’(≥2mA): normal operation

See for a description of logic levels in DSI. Connector Reference (board side): Molex 026013127 Recommended mating connector (wire harness side): 39012020 (housing1) and 39000040 (Crimp Terminal 18-24 AWG / 0.82-0.2mm²)

Figure 13: Molex – 026013127

Table 5: Emergency Shutdown connector description


1 EMS_SHUT + EMS positive polarity

1 Housing with UL 94 V-2 rating. If V-0 rating is required, use 39012025

Pin 1


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2 EMS_SHUT – EMS negative polarity

CHAdeMO signals

Two connectors are required: one for communication signals (main connector) and another for battery voltage measurement and IMD (HV DC connector)

Main connector:

Connector Reference (converter side): Phoenix Contact DMC 1,5/ 7-G1F-3,5-LR P20THR 1787069 Recommended mating connector (wire harness side): DFMC 1,5/ 7-STF-3,5 – 1790344

Figure 14: CHAdeMO connector (Phoenix Contact 1787069)

Table 6: CHAdeMO main connector description


1 CAN_CHA_H CAN High signal

2 +12V_ISO +12V Isolated

3 CHARGE PERM Charge Permission

4 CAN_CHA_L CAN Low signal

5 CHARGE_SEQ1 Charge Sequence 1

6 PROX_DET_CHA Proximity Detection

7 CHARGE_SEQ2 Charge Sequence 2

8 LOCK+ Plug Lock+

9 LOCK- Plug Lock -

10 Temp 1 + Temperature 1+ - DC connector

11 Temp 1 - Temperature 1- - DC connector

12 Temp 2+ Temperature 2+ - DC connector

13 Temp 2- Temperature 2- - DC connector

14 PE Protective Earth

HV DC voltage measurements connector:

Table 7: CHAdeMO HVDC connector description


1 HV_DC_CHA- HV DC negative polarity

2 HV_DC_CHA + HV DC positive polarity

Connector Reference (board side): Molex 026013127 Recommended mating connectors (wire harness side): 39012020 (housing1) and 39000040 (Crimp Terminal 18-24 AWG / 0.82-0.2mm²)


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Figure 15: Molex – 026013127

COMBO signals

Two connectors are required: one for communication signals (main connector) and another for battery voltage measurement and IMD (HV DC connector)

Main connector:

Connector Reference (converter side): Phoenix Contact DMC 1,5/ 4-G1F-3,5-LR P20THR - 1787030 Recommended mating connector (wire harness side): DFMC 1,5/ 4-STF-3,5 - 1790315

Figure 16: Combo connector (Phoenix Contact 1787030)

Table 8: COMBO main connector pin description


1 RFU Reserved for Future Use

2 PE Protective Earth

3 Temp 1 + Temperature 1+ - DC connector

4 Temp 1 - Temperature 1- - DC connector

5 Temp 2+ Temperature 2+ - DC connector

6 Temp 2- Temperature 2- - DC connector

7 PP Proximity pilot

8 CP Control Pilot

HV DC voltage measurements connector:

Table 9: COMBO HVDC connector description


1 HV_DC_CCS- HV DC negative polarity

2 HV_DC_CCS + HV DC positive polarity

Pin 1


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Figure 17: Molex - 026013127


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Extension board (EVIX) Interfaces

EVI has an expansion port that enables new functionalities to be added. The EVIX extension board can be optionally added to add the following:

Address selector and Charge Permission.

For better understanding the following part, please make sure to have read the MPU-25 datasheet available on: https://wattandwell.com/wp-content/uploads/MPU-R3-500-63-Fx-datasheet.pdf Each MPU-25 takes its CAN address at boot based on the Addressing connector on the front panel. Up to 7 units can be addressed with 3 DSI (digital signal inputs). Default value of each unconnected line is logic ‘1’ In order to address automatically MPU-25 at power boot, EVIX board proposes 6 addresses RJ45 output compatible with MPU-25standard (address 1 to 6).

Address CAN ID

0 (000) 86

1 (001) 80

2 (010) 81

3 (011) 82

4 (100) 83

5 (101) 84

6 (110) 85

7 (111) or unconnected 86

The addressing connector also transmits an optional DSI (digital signal input) “Charge Permission”. This signal can be used as a redundant stop signal since MPU-25 stops operation when it receives a stop instruction by either “Charge Permission signal” or “CAN communication message”. This functionality helps achieve compliance with safety features of some EV charging protocols like CHAdeMO. It is disabled by default When Charge Permission is enabled, logic levels are defined as

• ‘0’ (0mA or unconnected): no output (forbidden operation). If a start message is received by CAN, a fault will be generated.

• ‘1’ (≥2mA): charge permission OK (system can start if a CAN message is received)

Figure 18: Addressing connector (RJ45) front view

Table 10: Addressing connector pinout


1 ADDR0 Address bit 0 (positive)

2 ADDR0_RTN Address bit 0 return (negative)




6 ChargePerm_RTN Charge Permission return (negative)


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7 ChargePerm Charge Permission (positive)


Contactor command

EVIX extension board features 6 contactors drivers designed for operation in a typical 2 outlets charging station (cf. IEC 61851-23 ED 2.02 Annex GG Multioutlet (AC/DC isolated) DC EV charging station). See Figure 19 for such arrangement

Figure 19: Example of parallel connection of PUs for 150kW, 500V

EVIX contactors drivers are arranged in 3 pairs: A, B and C as shown in Figure 20. HW protections ensure that contactors C cannot be closed if both outputs (A and B) are active to to avoid shorting to vehicles together.

Figure 20: Contactors Pairs

Custom extension boards can be done for a other contactors arrangement or higher number of drivers (see AN002 Series connection of Power Units for other examples of contactors arrangements)

2 As of this writing ED 2 of IEC 6851-23 is an unpublished draft. Forecasted publication date is end 2021

Output A

Output B

500Vᴅᴄ

500Vᴅᴄ

500Vᴅᴄ

500Vᴅᴄ

500Vᴅᴄ 500Vᴅᴄ

+

–

+

–

PU 25 kW

+

–

PU 25 kW

+

–

PU 25 kW

+

–

PU 25 kW

+

–

PU 25 kW

+

–

PU 25 kW

+

–

75kW / 500V (150 A) simultaneousor 150 kW / 500V (500 A) non-simultaneous

75kW / 500V (150 A) simultaneousor 150 kW / 500V (500 A) non-simultaneous


https://wattandwell.com/wp-content/uploads/MPU-series-AN002-Series-connection-of-Power-Units.pdf

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5. Software specifications

System architecture

System architecture is designed to be composed of: - Up to 6 MPU-25 power units - Up to 2 EVIS boards (EVIS-A and EVIS-B) - 1 EVIX board (extension) - A EVSE supervisor

Multi EVI configuration

EVI can operate in single configuration for 1 Combo and 1 CHAdeMO communication port. Multiple EVI’s on the same CAN bus (to increase the number of ports) are limited to 2 for both hardware (default EVIX is designed for 6 contactors in a 2-outlet configuration) and software limitations. Please consult the engineering team ([email protected]) for details on how to operate 2 EVI‘s together



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System communication

5.3.1. Communication Characteristics

Communication between devices of the system is based on CAN communication following the CAN open protocol with the following characteristics: CAN baud rate: CAN 2.0A cadenced at 500kbit/s with little endian byte order Node ID definition & Heartbeat Each node has a unique Node ID and Heartbeat ID. It automatically transmits its communication state at regular intervals as evidence of its communication ability. All CAN devices in system have a specified Node ID which respects the following table:

Board Device CAN Node ID (decimal)

HeartBeat Frame ID

Description

Supervisor SUP 2 0x702

EVIS-A CS (Chipset) 16 0x710 Charge point manager on side A

EVIS-A PM CCS 17 0x711 ISO15118 & DIN70121 stack manager on side A

EVIS-A PM CHA 19 0x713 CHADeMO stack manager on side A

EVIS-B CS (Chipset) 32 0x720 Charge point manager - Side B

EVIS-B PM CCS 33 0x721 ISO15118 & DIN70121 stack manager - Side B

EVIS-B PM CHA 35 0x723 CHADeMO stack manager - Side B

MPU#1 Power Unit 1 80 0x750 MPU-25 configured in ADDR80 (via ADDR port)






SYNC frame In order to trigger synchronous sending of frame, CAN devices is sensible to a SYNC message.

Frame ID DLC x80 0

In this architecture, EVIS-A Chipset (Node ID 16) is the SYNC producer in system.


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5.3.2. Process data objects (PDO) mapping

As explain in CIA website (www.can-cia.org), “Process data objects (PDOs) are used in CANopen for broadcasting high-priority control and status information. A PDO consists of a single CAN frame and communicates up to 8 byte of pure application data. Device designers have to evaluate the amount of process data that the device needs to receive and transmit. Based on the result of this evaluation process, they have to provide the related amount of receive and transmit PDOs within the device” Communication are automatized with TPDO and RPDO between devices following the PDO mapping shown below:

Figure 21: PDO mapping


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Chipset status and State Machine

Figure 22: State machine communications

Chipset charge point state machine is implemented as follows:

Figure 23: Charge Point State Machine


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5.4.1. States machine states description

State Value Description

CP0_Init 0 Init state

CP1_WaitForSupApprob 1 Idle state, waiting for Supervisor approbation to start

charge session with EV

CP2_WaitForEV 2 Waiting EV confirmation to start charge session

CP4_WaitForPUs 4 Waiting for the Power unit to be in desired state

CP6_LockCableToEV 6 Confirmation that EV cable has been locked

CP7_CableCheck 7 Cable check procedure ongoing before charging

CP8_ChargeLoop 8 Charge ongoing

CP10_StopPUsAndPMs 10 Charge stop has been requested, stop ongoing by

turning off Power units

CP11_SafetyChecks 11 If requested, state reserved for going end of charge

safety tests

CP12_StopCommWithEV 12 Stop communication with EV

CP14_ReleasePUs 14 Releasing Power Unit (to allow them to be used by

another charge point)

CP15_UnlockEvConnector 15 Waiting for EV connector to be unlocked

CP16_WaitForPMidle 16 Waiting for PM to be back in Idle

CP17_EmergencyStop 17 Critical fault occurred – System in Fault

CP18_Reset 18 Reset Fault ongoing

CP19_RearmCharge 19 (Reserved for Future used)

CP255_no_state 255 Default value or register at boot

Figure 24: Charge point state description


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5.4.2. State machine transitions

Charge point transition are mainly generated by supervisor requests or update of Plug module state. Supervisor request list

Supervisor request Value Description

SUP0_Idle 0 Idle state allowed

SUP1_Approbation 1 Approbation to start charge session with EV

SUP2_Cancellation 2 Cancellation of charge requested

SUP4_EVSEStopChargeReq 4 EVSE user requested stop of charge

SUP5_Terminate 5 Terminate charging session

SUP6_Reset 6 Reset of charge point fault state

SUP7_RearmChargeWithoutUnplug 7 (Reserved for future use)

SUP255_DefaultValue 255 Default value of

Figure 25: Supervisor request list

Plug module State list

PM state Value Description

PM0_Init 0 Init state

PM1_Idle 1 Idle State

PM2_EVWaitingToBeCharged 2 Pairing with EV is done, EV waiting to be charged

PM3_CableIsLocked 3 Cable is locked

PM4_EVWaitingForPower 4 Cable check passed, EV wait power

PM5_EVChargeStopRequest 5 EV requested to stop the charging session

PM6_ChargeIsStopped 6 Charge is considered as stopped

PM7_PlugOutputIsOff 7 No more power on plug output

PM8_CommunicationTerminated 8 Communication session with EV is stopped

PM9_CableIsUnlocked 9 Cable is unlocked

PM10_CableUnpluggedBeforeCharge 10 (Reserved for future used)

PM11_Fault 11 Fault occurred on Plug module (critical error)

Figure 26: PM state list


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Plug module status and State Machine

The Plug Module is part of the EVI solution. It is responsible of the communication with the EV and the CAN communication with the controller of the EVI, called Chipset (CS). It exists in two flavors, either CHAdeMO or Combo, sharing the same software architecture. This section is focusing on the Plug Module common status and state machine. The specificity of the two flavors is described in the next section. The simplified internal architecture of the Plug Module can be depicted as below:

Figure 27: Plug Module Architecture Overview

The role of each component is:

• Charge Service Manager: Responsible of the IEC 61851-23 requirements and the link with the CS over CAN bus. It is responsible of updating the Plug Module state (PM state SX) based on the Chipset state (CS_state CPX) and the DC HLC-C Handler state.

• DC HLC-C Handler: Responsible of the communication with the EV using CHAdeMO, ISO 15118 or DIN 70121 requirements depending of the Plug Module flavor. It is responsible of updating the Target state based on the Charge Service Manager state (EVSE_X) and the EV communication state depending of the flavor.

• HTTP API: Provide access to logs, error codes and means to update the EVSE firmware. The state machine of the Charge Service Manager responsible of the PM state is depicted in the following diagram:


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Figure 28: PM and CP state machine

The next sections will describe more in details the CHAdeMO and Combo flavors of the Plug Module and define the meaning of the Target state.

CHAdeMO Plug module

The CHAdeMO flavor of the Plug Module is responsible of the CHAdeMO 0.9 to 1.2 communication with the EV over CAN bus. In the CHAdeMO Plug Module, the DC HLC-C Handler is responsible of the communication with the EV using CHAdeMO requirements. It is based on the existing YaCHA SECC stack. See YaCHA SECC datasheet. The mapping between the Target state to be provided to the Charge Service Manager and the CHAdeMO requirements is defined in the table below:

Target state Conditions

WAIT_AUTHORIZATION EVSE_Idle & YaCHA ready & 'Seq1'(switch(d1)) ON & (PP | Rx H100 H101 H102)

REQUEST_CHARGE_CAPABILITIES EVSE_Authorized & 'Vehicle shift position'(H102.5.2) 0

READY_TO_CHARGE EVSE_ChargeCapabilitiesReady & 'Vehicle charge permission'(switch (k)) ON

REQUEST_CABLECHECK EVSE_EvReady & 'Vehicle charging enabled'(H102.5.0) 1 & 'Vehicle status'(H102.5.4) 1 & PresentVoltage <= 10V

CHARGING EVSE_CableChecked & IsolationStatus Valid & PresentVoltage <= 20V

REQUEST_STOP EVSE_Stopping | 'Vehicle charge permission'(switch (k)) OFF | 'Vehicle charging enabled'(H102.5.0) 0 | 'Normal stop request before charging'(H'102.5.4) 0

REQUEST_WELDINGDETECTION 'Vehicle charge permission'(switch (k)) OFF

STOPPED 'Vehicle status'(H102.5.4) 1 \| PresentVoltage <= 10V


https://www.trialog.com/en/products-and-services/tools/


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Combo Plug Module

The Combo flavor of the Plug Module is responsible of the ISO 15118 or DIN 70121 communication with the EV over PLC. In the Combo Plug Module, the DC HLC-C Handler is responsible of the communication with the EV using DIN 70121 and ISO 15118 requirements. It is based on the existing YaCCS SECC stack. See YaCCS SECC datasheet. The mapping between the Target state to be provided to the Charge Service Manager and the Combo requirements is defined in the table below:

Target state Conditions

WAIT_AUTHORIZATION EVSE_Idle & YaCCS ready & CP state B

REQUEST_CHARGE_CAPABILITIES EVSE_Authorized & WaitChargeParameterDiscoveryReq

READY_TO_CHARGE EVSE_ChargeCapabilitiesReady & ProcessPowerDeliveryReq & CP state C

REQUEST_CABLECHECK EVSE_EvReady & DC

CHARGING EVSE_CableChecked & ProcessPreChargeReq

REQUEST_STOP EVSE_Stopping | WaitForWeldingDetectionOrSessionStopReq

REQUEST_WELDINGDETECTION DC & ProcessWeldingDetectionReq

Power Module status and State Machine

See MPU-25 datasheet available on https://wattandwell.com/wp-content/uploads/MPU-R3-500-63-Fx-datasheet.pdf




https://wattandwell.com/wp-content/uploads/MPU-R3-500-63-Fx-datasheet.pdf

https://wattandwell.com/wp-content/uploads/MPU-R3-500-63-Fx-datasheet.pdf

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6. Mechanical specifications

EVI dimensions

• Length 170 mm

• Width 120 mm

• Height: total height is 30mm o Top component height: 20mm o Bottom component height:8mm

• Weight: 206 gr

Figure 29: EVI dimensions


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EVIX dimensions

• Length: 100 mm

• Width 120 mm

• Height: o Total Height: 50 mm o Top component height: 27mm o Bottom Component Height: 21mm

• Weight: 90 gr

Figure 30: EVIX dimensions


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7. Graphical User Interface See COMO User interface document “DOC-COMOWTC-001-AA - Generic CANopen GUI Manual.pdf”

8. Safety instructions

Caution

The following safety instruction must be observed during all phases of operation, service and repair of this equipment. Failure to comply with the safety precautions or warnings in this documentation violates safety standards of design, manufacture and intended use of this equipment and may impair the built-in protections within. Watt & Well shall not be liable for users to comply with these requirements.

Installation

EVI is delivered as an open frame board, that is, without protective enclosure or chassis. This board contains live circuits involving high voltage that can result in electrical shock, fire hazard and/or personal injury if not properly handled or applied. It must be used only by qualified engineers and technicians’ familiar with risks associated with handling high voltage electrical and mechanical components, systems and subsystems. To avoid injuries, always disconnect power and remove external voltage sources before touching components. The protective earth terminal must be connected to the safety electrical ground before another connection is made. Any interruption of the protective ground conductor, or disconnection of the protective earth terminal will cause a potential shock hazard that might cause personal injury.

Parts substitution and modifications

Parts substitutions and modifications are allowed by authorized WATT & WELL service personnel only. For repairs or modification, the unit must be returned to WATT & WELL’s After Sale Service. Contact After Sale Service ([email protected]) to obtain RMA number.

WATT & WELL After Sale Service 121 Rue Louis Lumière 84120 PERTUIS FRANCE

Environmental condition

EVI device safety approval applies to the following operating conditions:

• Maximum relative humidity : 95% at 30°C : 23% at 60°C non-condensing

• Altitude : up to 2000m



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• Pollution degree : 23

Protective ground conductor terminal

Normative compliance

EVI is compliant with European directives:

• ROHS Directive 2011/65/UE

• WEEE Directive 2012/19/UE It is the user’s responsibility to ensure that EVI is installed and used in compliance with all local country laws and regulations.

Disposal

(Mandatory application within the European Union) Do not dispose of electronic tools tighter with household waste material. In accordance with WEEE European Directive (2012/19/UE), Electric material that have reach the end of their life must be collected separately and return to an environmentally compatible recycling facility. Please contact WATT & WELL for any questions about WEEE

3 Attention should be paid to avoid ingress of water, metallic or conductive particles, dust or corrosive atmospheric that may cause early failures of equipment


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9. Installation Do not use or install product in case of visible physical damage.

Mechanical installation

Refer to section 6 for the dimensions of the product

Electrical installation

Never invert polarity of the connectors. Never force to place a connector. Use only approved manufacturer parts for electrical or mechanical connection. It is strongly recommended to fix the cables to avoid any stress on connection. All high-power connectors must be screwed to avoid any disconnection. Be careful if other devices are connected, risk of electrical charge transfer. Wait two minutes before touching the device after complete suppression of input voltage. Check for lack of voltage, on all access, with the correct equipment.

Protective earth installation

Electrical installation shall comply with the international standards such as IEC or the requirements in national standards of each country. The protective earth (PE) terminal must be connected to the safety electrical ground before another connection is made. Any interruption of the protective ground conductor, or disconnection of the protective earth terminal will cause a potential shock hazard that might cause personal injury. Protective earth connection is made through mechanical screw fixtures of the board (e.g. stand-offs). Use conductive material and/or ensure that chassis where EVI is installed is grounded to ensure correct connection.

LV input

An auxiliary LV input must be connected to a 12 or 24 Vdc bus depending on version. This input must be protected against short-circuit and over-current. Electrical system around must be selected in accordance with protection rating. This bus should have minimal characteristics:

- Maximum input overvoltage 200 V (line to line) - Maximum input overvoltage 500 V (line to PE)

10. Maintenance No maintenance is required on this product

Cleaning

Do not use cleaning agent. Dust can be removed with dry air cleaning.


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11. Ordering information

Product Reference

Family Code

– COMBO port

– CHAdeMO port

HW Stack HW Stack

EVI C: CCS port 0: No stack A: CHAdeMO 0: No stack

1: V1G stack 1: V1G stack

2: V2G stack

The following table provides an overview of the available EVI boards variants.

Order code Stack CCS Stack CHA

EVI-C0-A0 No No

EVI-C0-A1 No V1G stack

EVI-C1-A0 V1G stack No

EVI-C1-A1 V1G stack V1G stack

EVI-C2-A0 V2G stack coming soon) No

EVI-C2-A1 V2G stack coming soon) V1G stack

Custom adaptions on request. Possible customizations include:

• Default connected CAN bus termination resistance (120Ω)

• Only one communication port, CCS or CHAdeMO, instead of both

• Increased Flash memory to 32 GB

• Support for 1000V batteries

Product accessories

EVIX – Extension board Adds 6 drivers for DC contactors and hardware-based addressing of up to 6 power units

WA006 – Pre-wired LV connector With color-coded 4mm insulated banana plug Cable length: 1m (other lengths under request)

WA007 – CAN bus adaptor from RJ45 to DB9 including 120 Ω termination resistance


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WA009 – USB to CAN transceiver (Kvaser) Compatible with MPU Monitor (versions from 2019 onwards)

[email protected] +33 1 75 5 11 50



evi electrical vehicle interface...15118 and din 70121 standards for dc charge. interoperability the...

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