Continental Automotive Systems DMFNA04 Smart Key Fob User Manual Spezifikationsformular in Deutsch mit Struktur
Continental Automotive Systems Corporation Smart Key Fob Spezifikationsformular in Deutsch mit Struktur
User Manual
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Proprietary data, company confidential. All rights reserved.
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CASCO Identification No. :
Document : User Manual for SMK2.7 Fob
Project : KH/DM Fob
Project Code :
Version: 1.0
Date: Nov. 14. '11
Engineering change order-No.:
Design Freeze No.:
Number of pages:
Filename: User Manual for KH_DM_Fob.doc
Editor : KN.Kim Document name Project code
Version: 1.0 Nov. 14. 2011
ECO / DF No.
Identification No. : Document No.
File: User Manual for KH_DM_Fob (공통).doc Page 2 / 6
.
Proprietary data, company confidential. All rights reserved.
Confié à titre de secret d'entreprise. Tous droits réservés.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confidado como secreto industrial. Nos reservamos todos los derechos.
.
Weitergabe sowie Vervielfältigung dieser Unterlage, Ver
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wertung und Mitteilung ihres Inhalts nicht gestattet, soweit
nicht ausdrücklich zugestanden. Zuwiderhandlungen ver
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Contents list Page
1. System configulation 3
1.1 Scope of SMART KEY SYSTEM 3
1.2 Short description of the SYSTEM 3
1.2.1 General Definition of SMART KEY 3
1.2.2 Wireless Communication 3
1.2.3 Concept Description 3
1.3 System Overview / Block Diagram 4
2 Smart Key Fob for homologation 6
2.1 Button operation for homologation 6
Editor : KN.Kim Document name Project code
Version: 1.0 Nov. 14. 2011
ECO / DF No.
Identification No. : Document No.
File: User Manual for KH_DM_Fob (공통).doc Page 3 / 6
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Proprietary data, company confidential. All rights reserved.
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Com arial todos os os.
Conf Nos todos los os.
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idado
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trial. . Rese
reservrvados
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1.2.1 General Definition of SMART KEY
1. System configulation
1.1 Scope of SMART KEY SYSTEM
The System offers the following features:
• passive access for two doors, driver side and passenger side as well as trunk/tailgate
• passive start after interior detection of the SMART KEY FOB (without interior trunk and
hat shelf detection)
• LF-RF communication (based on Siemens’ SMART KEY system)
• passive access trunk/tailgate via the trunk lid switch at the trunk
• max. 2 SMART KEY FOBs can be handled by the system
• communication to the engine management system via a single line interface
• communication to the ESCL via a single line interface
1.2 Short description of the SYSTEM
The SMART KEY system is a system that allows the user to access and operate a
vehicle in a very convenient way. To access the vehicle no traditional key or remote
control unit is needed.
The user carries a SMART KEY FOB which itself does not require any conscious
actions by the user (e.g. operate a button).
After being triggered the vehicle sends out a request in a limited range. If the
SMART KEY FOB receives this request, it automatically sends a response to the
vehicle. Then the system decides whether to perform a particular action (unlocking,
locking…) or remain inactive.
1.2.2 Wireless Communication
Electromagnetic waves are used to exchange information between the vehicle and the
SMART KEY FOB. Both, vehicle and SMART KEY FOB are equipped with a transmitter,
a receiver and several antennas.
1.2.3 Concept Description
With this concept it is possible to have a set of interior antennas that covers the vehicle’s
interior and a set of exterior antennas that covers the vehicle’s exterior.
For an unambiguous separation between the vehicle’s interior and exterior it is sufficient
that at least one area is covered exactly by the corresponding operating ranges of the
antennas.
The functions of the SMART KEY system have to be provided in a clearly defined and
limited range. For the up-link from the vehicle to the SMART KEY FOB, a magnetic field
with a frequency of 125 kHz and ASK modulation is used. Inductive antennas in and at
the vehicle radiate the electromagnetic energy.
Technical aspects of 125 kHz – magnetic field:
Editor : KN.Kim Document name Project code
Version: 1.0 Nov. 14. 2011
ECO / DF No.
Identification No. : Document No.
File: User Manual for KH_DM_Fob (공통).doc Page 4 / 6
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Proprietary data, company confidential. All rights reserved.
Confié à titre de secret d'entreprise. Tous droits réservés.
nicado como segredo empres
dado como secreto industrial.
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Weitergabe sowie Vervielfältigung dieser Unterlage, Ver
Comu
Confi arial. R
Nos res
eserv
ervam
ados t
os t odos os
odos los dir
derec
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• virtually no reflections,
• cubical decrease of field strength → allows good range control,
• released frequency band (ISM),
• high penetration,
• low quiescent current demand due to 125 kHz input stage (SMART KEY FOB),
• less sensitive for detuning compared to higher frequency.
For the down-link from the SMART KEY FOB to the vehicle, the standard radio frequency
(RF) is used (similar to the classic remote control functions) with FSK modulation.
1.3 System Overview
Figure 1: Principle of Communication
ECU sends LF challenge via exterior antenna
ID tag sends identification code to RF receiver
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Doors are unlocked automatically
User pulls open the door
L
F
Editor :
KN.Kim
Document name
Project code
Version:
1.0
Nov. 14. 2011
ECO / DF No.
Identification No. : Document No.
File:
User Manual DM_Fob (공통
Page 6 / 6
.
Proprietary data, company confidential. All rights reserved.
Confié à titre de secret d'entreprise. Tous droits réservés.
Comunicado como segredo empresarial. Reservados todos os direitos.
Confidado como secreto industrial. Nos reservamos todos los derechos.
.
.
Weitergabe sowie Vervielfältigung dieser Unterlage, Ver-
wertung und Mitteilung ihres Inhalts nicht gestattet, soweit
nicht ausdrücklich zugestanden. Zuwiderhandlungen ver-
pflichten zu Schadenersatz. Alle Rechte vorbehalten, insbe-
sondere für den Fall der Patenterteilung oder GM-Eintragung.
.
2 Smart Key Fob for homologation
2.1 Button operation for homologation
You can lock, unlock, trunk and panic warning your vehicle with this remote transmitter.
Lock
- When you push this button, all the doors will be locked.
- You can not lock any of the doors with this remote transmitter if any door is open or the key
is in the fob holder.
Unlock
- When you push this button, all the doors will be unlocked.
- You can not unlock any of the doors with this remote transmitter if any door is open or the
key is in the fob holder.
Trunk
- When you push this button more than 1 second, the trunk will be opened.
Panic
- When you push this button for 1 second, Horn will alarm.