Continental Automotive DHSNFC User Manual

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

1 of 33

Product name

Variant

Continental Part number

Audi Part number

DHS Audi D5 NFC - L

NFC Left

A2C 114 793

4N1.927.753

DHS Audi D5 NFC - R

NFC Right

A2C 114 797

4N1.927.754

Purpose: Door Handle Sensor - Audi D5 NFC

Scope:

Door Handle Sensor Audi D5 NFC

-

product overview – usage for homologation

Version AA

Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited.
Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

2 of 33

Document

version

Change description (including ECM
number)

Date/
Status

AA

First Version

26/04/2017

Version History

Item TBD (To be defined) or TBC (To be Confirmed) in blue color.

Item Updates compared to previous revision in yellow color

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Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

3 of 33

Table of Contents:

1 General ...................................................................................................................................... 5

1.1 Contact ............................................................................................................................... 5

1.2 Glossary .............................................................................................................................. 5

1.3 Validity and Track Changes ................................................................................................ 6

1.4 Type of Sensor .................................................................................................................... 6

1.5 Sensor Functions ................................................................................................................ 6

1.6 NFC Reader Principle .......................................................................................................... 7

1.7 Example of sensor use ........................................................................................................ 7

2 System Architecture .................................................................................................................. 8

2.1 Alternative System Architectures ...................................................................................... 8

2.2 Dynamic Behaviors ............................................................................................................. 8

2.3 System Architecture ........................................................................................................... 9

2.4 Components ..................................................................................................................... 10

2.5 Materials .......................................................................................................................... 11

2.5.1.1 Storage Temperature Range ............................................................................... 11

2.5.1.2 Operating Temperature Range ........................................................................... 11

2.5.2 Assembly / Sealing ..................................................................................................... 11

2.5.2.1 Module Sealing ................................................................................................... 11

2.6 Connector requirements .................................................................................................. 11

2.6.1 Connector Reference ................................................................................................. 11

2.6.2 Connector Pinout ....................................................................................................... 12

2.7 Variants ............................................................................................................................ 13

2.7.1 Right/Left Variants ..................................................................................................... 13

2.8 Electronics Structure and Interface ................................................................................. 14

2.8.1 Electronics Block Diagram ......................................................................................... 14

2.8.2 Operating Temperature Range .................................................................................. 14

2.8.3 Operating Voltage Range ........................................................................................... 14

2.8.4 Peak Power Consumption ......................................................................................... 14

2.8.5 Sleep Power Consumption ........................................................................................ 16

2.8.6 Current Consumption ................................................................................................ 16

2.8.7 CAN Voltage Range .................................................................................................... 16

3 Misuse Protections ................................................................................................................. 17

4 Communication ....................................................................................................................... 18

4.1 CAN Communication Protocol ......................................................................................... 18

4.1.1 Lock Detection Message ............................................................................................ 18

4.1.2 Unlock Detection Messages ...................................................................................... 18

4.1.3 DHS Error Message .................................................................................................... 19

4.3 NFC Communication ......................................................................................................... 20

4.3.1 NFC type .................................................................................................................... 20

Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited.
Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

4 of 33

4.3.2 Actuator test .............................................................................................................. 20

5 Detection area ........................................................................................................................ 22

5.1.1 Unlock Detection Area ............................................................................................... 22

5.1.2 Lock Detection Area .................................................................................................. 22

5.1.3 NFC Detection Area .................................................................................................. 22

6 Homologation setup ............................................................................................................... 24

6.1 General Test conditions ................................................................................................... 24

6.2 Material provided by Continental .................................................................................... 24

6.3 DHS detection tracking ..................................................................................................... 24

6.3.1 DHS connection instructions: .................................................................................... 25

6.3.2 Test box signals description: ..................................................................................... 28

6.3.3 Test box function: ...................................................................................................... 32

Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited.
Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

5 of 33

Function

Name

Email

Phone

Project Leader

Andreas Moser

[e-mail]

[phone]

System Engineer

Stéphan Baudru

[e-mail]

[phone]

Electronic Engineer

Cyril Robin

Cyril.robin @continental-corporation.com

[phone]

Software Engineer

Simon Forster

[e-mail]

[phone]

Mechanical Engineer

Paul Raison

[e-mail]

[phone]

Quality Engineer

Cindy Bardalou

[e-mail]

[phone]

1 General

1.1 Contact

1.2 Glossary

D5/C8: Audi platforms names
DH: Door Handle (means Outside Door Handle)
DHS: Door Handle Sensor Module (Unlock and Lock capacitive sensors)
LF: Low Frequency (125kHz signal for communication from ECU to Keyfob)
RF: Radio-Frequency (433 MHz signal for communication from Keyfob to ECU)
ECU: Electronic Control Unit
BCM: Body Controller Module
BCM2: Audi ECU name

NFC : Near Field Communication
PCD : Proximity Coupling Device (the Reader)
PICC : Proximity Integrated Circuit Card (the Smartcard/the Smartphone)

SE: System Engineering
ME: Mechanical Engineering
EE: Electrical Engineering

HW: Hardware
SW: Software
HSI: Hardware Software Interface
ICT: In Circuit Tester

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AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

6 of 33

EOL: End of Line (Tester)

RT: Room Temperature
DV: Design Validation
PV: Product Validation
EMC: Electro Magnetic Compatibility

FMTT: Flash Monitoring and Tuning Tool (Continental Development Tool)
FMDD: Continental Development Tool replacing the FMTT
DGL: Design GuideLines

1.3 Validity and Track Changes

Items or parameters values changed compared to previous revision are highlighted in yellow.
Items or parameters values to be defined or to be confirmed are highlighted in blue.

1.4 Type of Sensor

This sensor is a DHS.

The DHS is a standalone module with capacitive and NFC unctions.

This module is integrated into a DH, and used in Keyless Entry System, enabling 'key-free'
Vehicle Unlocking and Locking.

1.5 Sensor Functions

The DHS has 3 main functions :

- Unlock Function : Capacitive detection with 2 detection ranges.

- Lock Function : Capacitive detection with 2 detections ranges.

- NFC Function : Read/Write function of NFC Smartcards/Smartphones.

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Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

7 of 33

1.6 NFC Reader Principle

The NFC principle is based on electromagnetic coupling between 2 devices at close distance
(few cm).
The PCD emits a electromagnetic field on a 13.56 Mhz carrier. It will power the PICC via
Induction.
The PCD can transmit data via Miller Coding and receive data back via Load modulation.

1.7 Example of sensor use

Example of Vehicle Access Process (Unlocking):

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AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

8 of 33

As the user's hand approaches the capacitive sensor UNLOCK detection area, sensor
communicates detection to BCM Module. Then, the corresponding LF antenna on front side is
driven by system to send LF challenge to fob(s) to perform the user's identification process.

The same principle is used to Lock the vehicle, with a capacitive sensor LOCK detection area.
The NFC device tap is used to toggle the vehicle locking status.

2 System Architecture

2.1 Alternative System Architectures

Major evaluation criteria for architecture solutions was robustness, proven in use and cost.
Therefore the generic system architecture for Capa/NFC sensors proven in use in the generic
project was chosen.

2.2 Dynamic Behaviors

Dynamic behaviors, i.e. how the systems elements interact with each other dynamically, are
mainly driven by the SW.
Then, the timings and sequence charts are described in EE/SW Interface (HSI, IMS 161922) and
SW Requirements (IMS 161715)

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Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

9 of 33

2.3 System Architecture

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Offenders will be held liable for payment of damages. All rights created by patent grant or registration of a utility model or design patent are reserved.

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

10 of 33

ID: 161948

State: Released

2.4 Components

The DHS module shall be composed of:

- a packaging:

- plastic housing

- plastic cover

- potting material

- foam pad on Lock Area (the function is to keep the water out of the zone)

- a connection module:

- pressfit module

- harness + splices

- connector

- an electronic detection module:

- PCB with electronic circuit (for detection technology)

- Unlock Electrode (sensitive element) metal-stamping soldered on the PCB

- Lock Electrode (sensitive element) and NFC antenna on Flex-PCB soldered on the PCB

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!

AuD5 NFC : product overview – usage for homologation

Date

Department

Designed by

Released by

Designation

IMS ID

161711

SAP ID

10 348616

Document version as of

April 27, 2017

Pages

11 of 33

ID: 161950

State: Released

ID: 161951

State: Released

ID: 161954

State: Released

ID: 161919

State: Released

2.5 Materials

2.5.1.1 Storage Temperature Range

The Mechanical Design shall guarantee the sensor robustness over Temperature storage range:

-40°C to +90°C.

2.5.1.2 Operating Temperature Range

The Mechanical Design shall guarantee the sensor robustness over Temperature operating
range: -40°C to +70°C.

2.5.2 Assembly / Sealing

2.5.2.1 Module Sealing

The DHS shall be sealed with PolyUrethane (PU) resin.
The sealing process shall ensure absolute water tightness.

2.6 Connector requirements

2.6.1 Connector Reference

The connector is a directed part from Audi.

Connector Designation: Tyco MCON 4 ways, Coding B color white
Audi Reference: 4N0.973.704.A

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