Manual Keyless

FCC ID: IYZDC07

Users Manual

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FCCID_974756

                                       Annex No.5
                                       Page 1 of 10




Functional Description / User manual

         BR212 Keyless Go


  Technical Description

Remote control vehicle key
         BR212

          PN: 3333




              Author:          Uwe Schwalm
              Department:      C1E12
              Tel. :           07424/99 – 1975
              Fax. :           07424/99 – 2541
              Email:           Uwe. Schwalm@Marquardt.de
              First draft:     12.03.02008
              Change status:
              Version :        1.0


                                                                                                                            Vehicle key BR212 – techn. description

                                                                                      1.1   Remote control vehicle locking
Confidado como secreto industrial. Nos reservamos todos los derechos.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confié à titre de secret d'entreprise. Tous droits réservés.
                                               All rights reserved.




                                                                                      The locking and drive permission system BR212 (3333) incorporates a function which enables the locking
                                                                                      and unlocking of the doors.
                                                                                      All vehicles with a boot lid can also be equipped with the function for unlocking the boot lid, and it is also
                                                                                      possible to provide a button to activate the “PANIC” function for vehicles intended for the US market.

                                                                                      The function is activated by pushing a button, the method of button pushing determines the function
Proprietary data, company confidential.




                                                                                      activated on the vehicle, e.g. prolonged pressure on the button initiates an IR comfort function.

                                                                                      If messages are discharged from the key, the access permission information is sent via radio waves (HF)
                                                                                      and redundantly via infrared (IR) from the key to the vehicle. The so-called comfort signals are special
                                                                                      functions which require visual contact with the vehicle. Upon pressing the button for an extended period,
                                                                                      these signals are sent via IR signal only after the standard access permission message.


                                                                                      HF communication via 3-channel operation:
.




                                                                                      The access permission message is sent sequentially on 3 radio channels adjacent to one another within the
                                                                                      permissible ISM band. The radio receiver installed within the vehicle is able to receive the message
                                                                                      discharged from the key on all 3 channels, evaluate it and send an appropriate control message to the
                                                                                      central locking system.
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                                                                                      1.2   Keyless operation
                                                                                      The principle keyless go functionality facilitates full utilisation of the drive permission system function on the
                                                                                      vehicle without active operation of the key. This means that one can lock and unlock the vehicle (access
                                                                                      permission) without operating the key and activate and deactivate the immobiliser (drive permission) without
                                                                                      placing the key in the ignition switch. It is only necessary to carry the key in order to be identified as an
                                                                                      authorised vehicle user.

                                                                                      In addition to the basic variant, the keyless go key is expanded to include an LF receiver component,
                                                                                      comprising of inductive antennae which create the three spatial directions x, y and z, and an associated LF
.




                                                                                      receiver ASIC. Additionally, the keyless go variant of the key is equipped with a special HF ASIC, which
                                                                                      facilitates bidirectional HF communication.

                                                                                      In addition to the keyless go functionalities described, the keyless go key is also equipped with all of the
                                                                                      basic variant functions.



                                                                                      1.2.1 Access permission with keyless entry
                                                                                      The keyless access permission (keyless entry) is initiated by the vehicle user activating the vehicle door
                                                                                      handle. This causes the vehicle to send an inductive wake up message. On receiving this, the key starts in
                                                                                      active mode.
                                                                                      The vehicle now sends further unmodulated, inductive fields which enable the key to ascertain its position in
                                                                                      relation to the vehicle on the basis of field strength measurements.
                                                                                      Bidirectional HF communication follows, in which cryptographically encrypted authentication data is
                                                                                      transferred between the key and the vehicle.
                                                                                      If the key is outside the vehicle, the vehicle is locked or unlocked following transferral of the correct data.




                                                                                                                     First draft   12..03.2008      Version     1.0
                                                                        form 659.02




                                                                                      MARQUARDT GmbH
                                                                                      Schloßstraße 16                Department    C1E12            File
                                                                                      D 78 604 Rietheim – Weilheim   Author        U. Schwalm       Doc. no.
                                                                                                                     Date          12.03.2008       Page        Page 2 of 9


                                                                                                                            Vehicle key BR212 – techn. description

                                                                                      1.2.2 Drive permission with keyless go
Confidado como secreto industrial. Nos reservamos todos los derechos.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confié à titre de secret d'entreprise. Tous droits réservés.
                                               All rights reserved.




                                                                                      In principle, when activating the start/stop switch for a keyless engine start, the same process runs as that
                                                                                      described for access permission. The difference here is that the key must be located inside the vehicle.
                                                                                      The presence of the key inside the vehicle is verified on every 5km driven, and on driving away. The
                                                                                      process that runs here is similar to the engine start process, although shorter.
Proprietary data, company confidential.




                                                                                      1.2.3 LF / HF transferral
                                                                                      The inductive wake-up message is sent in a phase-modulated (PSK) format through the vehicle on the
                                                                                      frequency 21.845 kHz with a data rate of 5.461 kBd.
                                                                                      With respect to bidirectional HF communications, these are processed in a frequency-modulated (FSK)
                                                                                      format, in the ISM band on 433.92 MHz in Europe and 315 MHz in the USA. The rate of data transferral is 10
                                                                                      kBd.
.




                                                                                      1.2.4 Operating frequencies of HF transferral
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                                                                                      1.2.5 1-channel

                                                                                                In 1-channel operation, the mid-frequency of the channel is:
                                                                                                ECE:                                433.92 MHz
                                                                                                USA, Japan:                         315.00 MHz

                                                                                      1.2.5.1          3-channel

                                                                                                The following table shows the mid-frequency of the individual channels for each frequency
                                                                                                band.
.




                                                                                                        Channel name
                                                                                                                            Abbreviated                         Channel mid-frequency
                                                                                                    Name
                                                                                                                                ID
                                                                                                                                              USA:          314.00 MHz
                                                                                                 Channel 1                         CH1
                                                                                                                                              ECE:          433.47 MHz
                                                                                                                                              USA:          314.90 MHz
                                                                                                 Channel 2                         CH2
                                                                                                                                              ECE:          434.37 MHz
                                                                                                                                              USA:          314.45 MHz
                                                                                                 Channel 3                         CH3
                                                                                                                                              ECE:          433.92 MHz




                                                                                                                     First draft     12..03.2008     Version       1.0
                                                                        form 659.02




                                                                                      MARQUARDT GmbH
                                                                                      Schloßstraße 16                Department      C1E12           File
                                                                                      D 78 604 Rietheim – Weilheim   Author          U. Schwalm      Doc. no.
                                                                                                                     Date            12.03.2008      Page          Page 3 of 9


                                                                                                                                                                                            Vehicle key BR212 – techn. description

                                                                                      1.3                  HF protocol
Confidado como secreto industrial. Nos reservamos todos los derechos.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confié à titre de secret d'entreprise. Tous droits réservés.
                                               All rights reserved.




                                                                                      1.3.1 3-channel operation

                                                                                                                                                                                                m
Proprietary data, company confidential.




                                                                                                                                                               CH 1


                                                                                                                                                                                         CH 2


                                                                                                                                                                                                                    CH 3
                                                                                                       f                                                                                         X = beliebig
                                                                                                                                                                                                 (abhängig vom Dateninhalt)



                                                                                                                                    "0"     "0"      "0"       "0"    "0"          "1"     "X"        "X"       "X"       "X"       "1"
                                                                                                                                                                                                                                                                                            "0"      "0"       "0"      "1"                       "1"                                                 "0"      "0"       "0"   "1"          "1"
                                                                                                                                        h
                                                                                              obere
                                                                                      Sendefrequenz

                                                                                              untere
                                                                                      Sendefrequenz                                                                                                                                             Nachlauf




                                                                                                                                                                                                                                                                                                                                                          Nachlauf




                                                                                                                                                                                                                                                                                                                                                                                                                                                    Nachlauf
                                                                                                                                                                               Start-                                               Stop-                    Kanal-                                                    Start-                     Stop-                Kanal-                                                  Start-       Stop-
                                                                                                               Träger einschalten                 Vorimpulse                                                Daten                    bit                   umschaltung Träger einschalten         Vorimpulse                         Daten         bit               umschaltung Träger einschalten         Vorimpulse                       bit
                                                                                                                                                                                bit                                                                                                                                     bit                                                                                                     bit
                                                                                             Träger
                                                                                                                       a                                                                                                                           f                            a                                                                            f                            a                                                            f
.




                                                                                                aus                                                   b                             c                          d                      e                                                               b                     c             d         e                                                           b                c      d    e

                                                                                                                                                                        i=a+b+c+d+e+f                                                                          g                                               i                                                         g                                               i


                                                                                                                                                                                                                                                                                                                                              t                                                                                                                t
                                                                                                            -a-b-c               -b-c                                                    0 ms                                   d                      d+e+f       d+e+f+g           a+d+e+f+g
                                                                                                                                                                            - -c




                                                                                                                                                                                                                                          d+e




                                                                                                                                                                                                                                                                                                                   +e+f+g
                                                                                                                                                                                                                                                                                                                   a+b+d

                                                                                                                                                                                                                                                                                                                                d+e+f+g
                                                                                                                                                                                                                                                                                                                                a+b+c+
Weitergabe sowie Vervielfältigung dieser Unterlage, Ver-

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                                                                                                                                                                                                                                                                   p12                                                                                                                                p23


                                                                                                                                                                                                                                                                                                                                              p13




                                                                                                                                                                                                                                                                                                                                                                                                   zul.
                                                                                                            Parameter                                                                                                  Beschreibung                                                                                                                                  Zeit
                                                                                                                                                                                                                                                                                                                                                                                                 Toleranz
                                                                                                                            a                                        Träger einschalten auf unterer Sendefrequenz                                                                                                                                         0,150ms                                           ±50µs
                                                                                                                            b                                                                                 Vorimpulse (550 Stück)                                                                                                                    55,000ms                                        ±550µs
                                                                                                                            c                                                                                                             Startbit                                                                                                        0,100ms                                           ±1µs
                                                                                                                            d                                        Daten (120Bit =14Byte + 1Byte Checksumme)                                                                                                                                          12,000ms                                        ±120µs
                                                                                                                            e                                                                                                             Stopbit                                                                                                         0,100ms                                           ±1µs
                                                                                                                             f                                                                                                       Nachlauf                                                                                                             0,150ms                                           ±50µs
.




                                                                                                                            g                                               Kanalumschaltung (Träger ausgeschaltet)                                                                                                                                       0,600ms                                           ±50µs
                                                                                                                            h                                                                                Periodendauer eines Bit                                                                                                                      0,100ms                                           ±1µs
                                                                                                                             i                                                                                                =a+b+c+d+e+f                                                                                                              67,500ms                                        ±772µs
                                                                                                                           p12                                                                                  =d+e+f+g+a+b+c+d+e                                                                                                                   80,200ms                                          ±943µs
                                                                                                                           p23                                                                                    =f+g+a+b+c+d+e                                                                                                                     68,100ms                                          ±822µs
                                                                                                                           p13                                                                                        =p12+p23                                                                                                                      148,300ms                                         ±1.765µs
                                                                                                                           m                                                                    Funkprotokoll gesamt (=2*g+3*i)                                                                                                                     203,700ms                                         ±2.416µs




                                                                                                                                                                        First draft                                           12..03.2008                                                   Version                                   1.0
                                                                        form 659.02




                                                                                        MARQUARDT GmbH
                                                                                        Schloßstraße 16                                                                 Department                                            C1E12                                                         File
                                                                                        D 78 604 Rietheim – Weilheim                                                    Author                                                U. Schwalm                                                    Doc. no.
                                                                                                                                                                        Date                                                  12.03.2008                                                    Page                                      Page 4 of 9


                                                                                                               MARQUARDT                               Vehicle key BR212 — techn. description
                                                                                                               1.3.2 1—channel operation
  Confidado como secreto industrial. Nos reservamos todos los derechos.
  Comunicado como segredo empresarial. Reservados todos os direitos.
                                                               réservés.
                                                              re,serve,d.
                                   d‘entreprise. Tous droits
                                                   All rights




                                                                                                                                                                       IIOII       IIOII        IIOII        IIDII        IIOII
                                                                                                                                                                                                                                                     xX = user defined
                                    confidential.




                                                                                                                                                                   fof                     $            f             f                )o   &
                                                                                                                                                                                                                                                     (dependent on data
                                                                                                               Upper transmission                                  i           i           f            f             i           i    i    ;
                                                                                                                   frequency        2l                             1           i           i            i             i           L    i    be n en eceeseeesee}.
                      company
              fitre de secret




                                                                                                               Lower transmission                                                                                                 :
                                                                                                                   frequency        ——                                                                                            eA                     hs scsses.
              data,




                                                                                                                   Carrier off
                                                                                                                                              3 ms .. 5 ms                                     55 ms        #1%
            a
  Proprietary




                                                                                                                                         |    Switch carrier on   "K                       55 pre—pulse                                     T       ’,
  Confié




                                                                                                                                         j                                                                                                            pe
                                                                                                                                                                                                                                                   172 ms
                                                                                                                                                                                                                                                .. 174,5 ms
            dieser Unterlage, Ver—
ihree Inhalts nicht nestattet snwelit



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                                                                                                                                                First draft       12..03.2008                                  Version
                                                                                                 form 659.02

                                                                                                               M    3UARDT GmbH                                                                                —
                                                                                                               ScmoBstraise 16                  Department        C1E12                                        «ile
                                                                                                               D 78 604 Rietheim — Weilheim     agpor             U. Schwalm                                   Doc. no.
                                                                                                                                                Date              12.03.2008                                   Page


                                                           .                                                              .
                                                           Weitergabe sowie Vervielfältigung dieser Unterlage, Ver-       Proprietary data, company confidential.        All rights reserved.
                                                           wertung und Mitteilung ihres Inhalts nicht gestattet, soweit   Confié à titre de secret d'entreprise. Tous droits réservés.
                                                           nicht ausdrücklich zugestanden. Zuwiderhandlungen ver-         Comunicado como segredo empresarial. Reservados todos os direitos.
                                                           pflichten zu Schadenersatz. Alle Rechte vorbehalten, insbe-    Confidado como secreto industrial. Nos reservamos todos los derechos.
                                                           sondere für den Fall der Patenterteilung oder GM-Eintragung

              form 659.02




                                                                                                                                                                                                                                   1.4




                   Schloßstraße 16
                   MARQUARDT GmbH

                   D 78 604 Rietheim – Weilheim

Date
               Author
                                             First draft
                              Department
                              C1E12
                                                                                                                                                                                                                                   Block diagrams for key variants




12.03.2008
                                             12..03.2008


               U. Schwalm
                              File


Page
                                             Version


               Doc. no.
                                                                                                                                                                            1.4.1 Basic variant (remote controlled locking only)




                                                                          HF transceiver with
                                                                          power management




                                             1.0




Page 6 of 9
                                                                                                                                                                                                                                                                     Vehicle key BR212 – techn. description


              Weitergabe   sowie Vervielfaltigung   dieser Unterlage,    Ver—   Proprietary   data,   company   confidential.      All   rights        reserved.
              wertung und Mitteilung ihres Inhalts nicht gestattet, soweit      Confié a titre de secret d‘entreprise. Tous droitst      réservés.
              nicht ausdriicklich zugestanden. Zuwiderhandlungen ver—           Comunicado como segredo empresarial. Reservados todos os direitos.
              pflichten zu Schadenersatz.    Alle Rechte vorbehalten, insbe—    Confidado como secreto industrial. Nos reservamos todos los derechos.
                                       U
              sondere fiur den FalliN der                              ay U
                                          Patenterteilung oder GM—Eintragung

form 659.02




  ‘    1                                                                                                                        \cougo
                                                                                                                                         &
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                                                                                                                                                                   FAAEAnmn#/Al 14AT




                                                                                                                                             Startup


                                                                                                                            Vehicle key BR212 – techn. description

                                                                                      1.5   Technical data
Confidado como secreto industrial. Nos reservamos todos los derechos.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confié à titre de secret d'entreprise. Tous droits réservés.
                                               All rights reserved.




                                                                                      1.5.1 General HF specification

                                                                                        •    Operating frequencies, tolerance
                                                                                             Single channel operation:
Proprietary data, company confidential.




                                                                                                      f op1 = 315MHz         (USA, Japan)
                                                                                                      f op2 = 433.92MHz      (ECE)

                                                                                              3-channel operation:
                                                                                                     f op1 = 314.00MHz / 314.45MHz / 314.9MHz  (USA, Japan)
                                                                                                     f op2 = 433.47MHz / 433.92MHz / 434.37MHz (ECE)

                                                                                              Temperature shift –20° to +65° C:            +/-35ppm
                                                                                              Ageing:                                      +/-10ppm
                                                                                              Remaining deviation after adjustment:        +/-2ppm
                                                                                              Voltage dependency and drift XTO:            +/-3ppm
.




                                                                                              Total tolerances remaining after
                                                                                              adjustment of the initial frequency          +/-50ppm
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                                                                                      1.5.2 HW_000210 - Specification of the HF transmitter

                                                                                        •    Transmission power EIRP:
                                                                                                                   ECE*:                                     -14,4dBm….-22dBm
                                                                                                                   USA/Canada **                             -19.6dBm….-24dBm
                                                                                                                   Japan(TELEC-T244)***:                     -19.6dBm….-24dBm
                                                                                                                   Japan(ELPD 315MHz)****                    -44dBm……-41dBm

                                                                                              * maximum transmission power limit Taiwan : 80.83dbµV/m at a distance of 3m.
                                                                                              With isotopic propagation, the maximum transmission power is –14.4dBm.

                                                                                              ** maximum transmission power limit according to FCC section15/Canada RSS-210:
.




                                                                                              3.75…12.5mV/m in the 260-470MHz range at a distance of 3m
                                                                                              At 315MHz the figure is 6.042mV/m, which relates to a transmission power of –19.63dBm with
                                                                                              isotopic propagation.

                                                                                              *** Use of the USA variant
                                                                                              taken from the new TELEC-T244 Japanese standard
                                                                                              Limit max. 25µW with transmission frequency of up to 315.25MHz, this relates to -16dBm
                                                                                              Use of the USA variant

                                                                                              ****Extremely low power devices
                                                                                              At a limit of 500µV/m and a distance of 3m with isotopic propagation, this reflects a transmission
                                                                                             power of –41.25dBm




                                                                                                                     First draft   12..03.2008        Version     1.0
                                                                        form 659.02




                                                                                      MARQUARDT GmbH
                                                                                      Schloßstraße 16                Department    C1E12              File
                                                                                      D 78 604 Rietheim – Weilheim   Author        U. Schwalm         Doc. no.
                                                                                                                     Date          12.03.2008         Page        Page 8 of 9


Confidado como secreto industrial. Nos reservamos todos los derechos.                                                       Vehicle key BR212 – techn. description


                                                                                         • Settling time for the transmission frequency (PLL)
Comunicado como segredo empresarial. Reservados todos os direitos.
Confié à titre de secret d'entreprise. Tous droits réservés.
                                               All rights reserved.




                                                                                              tStartUp    = 500µs
                                                                                              tlock       ≤ 200µs with Δf = 600kHz with ferror ≤ 10kHz


                                                                                         •   Modulation, baud rate:
Proprietary data, company confidential.




                                                                                             Single channel operation:              10 kBaud Manchester keyless go

                                                                                              3-channel operation:                  10 kBaud Manchester

                                                                                              Tolerances:                   ≤ ±1.0 %

                                                                                         •   Modulation type, range:
                                                                                                                            2-FSK: +/-15kHz to +/-17kHz basic key
                                                                                                                            2-FSK: +/-15kHz to +/-21kHz keyless go key
.




                                                                                         •   Emitted interference
                                                                                                o Harmonics & spurious
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                                                                                                         315MHz:                    ≤:       -49dBm @ ≤ 960MHz (*
                                                                                                                                    ≤:       -41dBm @ > 960MHz (**

                                                                                      (* This reflects the limit of 200µV/m as per FCC section 15, with isotopic propagation
                                                                                      (**      This reflects the limit of 500µV/m as per FCC section 15, with isotopic propagation

                                                                                                         433.92MHz:
                                                                                                                                    ≤:       -36dBm @ ≤ 1 GHz

                                                                                                                                    ≤:       -30dBm @ > 1GHz
                                                                                                         all frequency bands:
                                                                                                                                    ≤?       -54dBm @ UKW & TV bands (EN300220)
                                                                                                                                             47 -74MHz
.




                                                                                                                                             87.5 –118MHz
                                                                                                                                             174 –240MHz
                                                                                                                                             470 – 862MHz

                                                                                         •   Modulation quality:
                                                                                                                            Overshoot: Max. 100% of the nominal value
                                                                                                                            Max. duration of the overshoot:
                                                                                                                                   ≤ 6µs at 10 kBaud

                                                                                                                            Build / fall times: 0 % to 100% nominal value:
                                                                                                                                     ≤ 6µs at 10 kBaud

                                                                                      The shift times are determined with a measuring receiver, the reception bandwidth of which lies as close as
                                                                                      possible to the receiver in the application:

                                                                                                                Remote control vehicle locking:                BWRx= 600kHz
                                                                                                                Keyless go operation:                          BWRx= 200kHz




                                                                                                                     First draft     12..03.2008        Version     1.0
                                                                        form 659.02




                                                                                      MARQUARDT GmbH
                                                                                      Schloßstraße 16                Department      C1E12              File
                                                                                      D 78 604 Rietheim – Weilheim   Author          U. Schwalm         Doc. no.
                                                                                                                     Date            12.03.2008         Page        Page 9 of 9



Document Created: 2008-06-03 15:39:36
Document Modified: 2008-06-03 15:39:36

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