Continental Automotive Systems JFFGE04 Smart Key Fob User Manual

Continental Automotive Systems Corporation Smart Key Fob

User Manual

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Document : User Manual for Smart Key Fob
Model : SVI-JFFGE04
Project Code :
Version: 1.0
Date: Dec. 04. '14
Engineering change order-No.:
Design Freeze No.:
Number of pages: 7
Filename:
CASCO Identification No. :
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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 SMK Fob Operation 5
2.1 Button operation 5
3 Homologation 6
Editor : KS.Kim
Document name
Project code
ECO / DF No.
Version: 1.0 Jan. 07. 2014
File:
Identification No. : Document No.
Page 2 / 6
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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
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
1.2.1 General Definition of SMART KEY
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.
Editor : KS.Kim
Document name
Project code
ECO / DF No.
Version: 1.0 Jan. 07. 2014
File:
Identification No. : Document No.
Page 3 / 6
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Technical aspects of 125 kHz – magnetic field:
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 / Block Diagram
ECU sends LF challenge via exterior antenna
ID tag sends identification code to RF receiver
Doors are unlocked automatically
User pulls open the door
L
F
Figure 1: Principle of Communication
Editor : KS.Kim
Document name
Project code
ECO / DF No.
Version: 1.0 Jan. 07. 2014
File:
Identification No. : Document No.
Page 4 / 6
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Proprietary data, company confidential. All
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ights
reserved.
Confié à titre de secret
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ise. Tous droits
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Comunicado como segr
edo empr
esarial. Reservados todos
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Confidado como secreto industrial. Nos reservamos todos
los
derechos.
2. Smart Key Fob operation
2.1 Button operation
Lock Unlock
HOLD(Trunk)
Panic
You can lock, unlock, trunk and hold 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.
HOLD(Trunk)
- When you push this button and hold more than 1 second, the trunk will be opened.
Panic
- When you push this button for about 1 second, Horn will alarm.
Editor : KS.Kim
Document name
Project code
ECO / DF No.
Version: 1.0 Jan. 07. 2014
File:
Identification No. : Document No.
Page 5 / 6
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Proprietary data, company confidential. All
r
ights
reserved.
Confié à titre de secret
d'entrepr
ise. Tous droits
réservés.
Comunicado como segr
edo empr
esarial. Reservados todos
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Confidado como secreto industrial. Nos reservamos todos
los
derechos.
3. Homologation
FCC Compliance Statement.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions :
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including
interferencethat may cause undesired operation.
Do Not
Any changes or modifications to the equipment not expressly
approved by the party responsible for compliance could void
user’s authority to operate the equipment.
IC Compliance Statement.
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Le present appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisee aux deux conditions suivantes :
(1) l’appareil ne doit pas produire de brouillage, et
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioelectrique subi, meme si le
brouillage est susceptible d’en compromettre le fonctionnement.
Editor : KS.Kim
Document name
Project code
ECO / DF No.
Version: 1.0 Jan. 07. 2014
File:
Identification No. : Document No.
Page 6 / 6

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