Continental Automotive Systems SVISMKFNA04 Smart Key Fob User Manual for SMK ECU Fob

Continental Automotive Systems Corporation Smart Key Fob for SMK ECU Fob

User Manual

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Date Submitted2006-11-03 00:00:00
Date Available2006-11-03 00:00:00
Creation Date2006-11-01 18:43:34
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All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
Document :
Function Description /
User Manual
for
Smart Key System
Project :
Smart Key ECU & Smart Key Fob
Project Code :
Version:
0.2
Date:
Sep. 18 '06
Engineering change order-No.:
Design Freeze No.:
Number of pages:
14
Filename:
User Manual for SMK ECU & Fob
SV SASCO
Identification No. :
.
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.
Operation Guide
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 interference that may cause undesired operation.
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Caution !
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.
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 2 / 14
.
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Proprietary data, company confidential.
All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
Contents list
1.1
1.2
1.2.1
1.2.2
1.2.3
1.2.4
1.2.5
1.3
2.1
2.2
2.3
3.1
3.2
4.1
4.2
4.3
5.1
Page
System configulation
scope of SMART KEY SYSTEM
short description of the SYSTEM
General Definition of SMART KEY
Wireless Communication
concept Description
System Architecture
Main Functions
System Overview / Block Diagram
SMK ECU Configuration
Block Diagram
Pin Description
SMART Key Ecu (SMK ECU)
SMK Fob Configuration (Transmitter)
Block Diagram
Technical Data of SMK Fob
SMK ECU Test Board for homologation
Shape of tool box
Switch
Method to use Test board
SMK Fob for homologation
Button operation for homologation
Editor :
KK Ko
Version:
0.5
10
11
13
13
13
13
13
14
14
14
14
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 3 / 14
.
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Proprietary data, company confidential.
All rights reserved.
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Comunicado como segredo empresarial. Reservados todos os direitos.
Confidado como secreto industrial. Nos reservamos todos los derechos.
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/locking of the two front doors via a toggle push button in the door
handles
•
passive access trunk/tailgate via the trunk lid switch at the trunk
•
max. 2 SMART KEY FOBs can be handled by the system
•
immobilizer backup antenna driver integrated into MSL
•
communication to the engine management system via a single line interface
•
communication to the MSL via a single line interface
•
block of the steering column by the MSL device
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). The SMART KEY system is triggered by
pressing a push button in the door handle.
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.
In a similar manner the vehicle’s Mechatronic Steering Lock (MSL) is released.
Again, a communication between the vehicle and the SMART KEY FOB is needed
before any actions will be performed.
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.
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 4 / 14
.
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.
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:
• 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.
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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.
1.2.4
System Architecture
The system is designed as an optional system, making it possible to equip vehicles of the
same car-Line with different levels of access control systems.
The system is suitable to be integrated into an existing architecture that provides central
locking functions with standard remote control. This proposal assumes that the following
functions / devices are already present in the vehicle’s architecture.
•
Central locking system (latch / motor – drivers etc.)
•
Standard body control functions
•
Warning buzzer
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 5 / 14
Main Functions
•
The system allows the user to access and exit (unlock and lock) the vehicle without
performing any actions with the SMART KEY FOB.
•
The system allows the user to release the MSL and to switch the power modes (Off,
Accessory, Ignition), as well as to start and stop the vehicle’s engine without
performing any actions with the SMART KEY FOB.
•
Additionally, the system offers a so called “limp home mode”, wherein the user can
operate all vehicle functions by inserting the key into the MSL or by inserting the
mechanical key blade into the door lock.
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Proprietary data, company confidential.
All rights reserved.
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Comunicado como segredo empresarial. Reservados todos os direitos.
Confidado como secreto industrial. Nos reservamos todos los derechos.
1.2.5
Figure 1: Offered System Components
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 6 / 14
.
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Proprietary data, company confidential.
All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
1.3
System Overview / Block Diagram
SMART KEY FOB
Challenge
(LF-Up-link)
Editor :
KK Ko
Version:
0.5
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Response
(RF-Down-link)
Passive Access
Detection Range
Passive Access
Detection Range
Figure 2: Principle of Communication
Document name
Project code
ECO / DF No.
Identification No. : Document No.
Page 7 / 14
MSL
Transponder
communication
Immobilizer
BCM,
DDM,
...
Fob
Single line
serial communication
9.6 kBd
Body CAN/
LIN
SMK
LF
LF communication
(SMK)
3.9 kBd ASK
125 KHz
LF antenna
(SMK)
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All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
System Architecture for SmartKey
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SmartKey
ECU
RF communication
(RKE and Pase)
1kBd FSK
315/433/447 MHz
SMK
Single line
serial communication
10.4 kBd / KWP2000
LF driver
Single line
serial communication
4.8 kBd
Diag-Tool
Single line
serial communication
9.6 kBd
SRx
EMS
Figure 3: System Block Diagram
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 8 / 14
.
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Proprietary data, company confidential.
All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
2 SMK ECU Configuration
2.1
Block Diagram
Editor :
KK Ko
Version:
0.5
Document name
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Project code
ECO / DF No.
Identification No. : Document No.
Page 9 / 14
.
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All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
2.2
Pin Description
Function
I/O
Pin Description
Load Configuration
OFF configuration
Analog
Input
Logic Input
A1
VBAT
Switch Open
A8
A_ALT_L
Switch Open
A9
L_ACC
Switch Open
A14
L_IGN1
Switch Open
A19
L_PUSH_KNOB
Switch Open
A6
L_FL_DR_LOCK/ UNLOCK
Switch Open
A20
L_FR _DR_LOCK/ UNLOCK
Switch Open
A5
L_TRUNK_LID/L_TAIL_GATE
Switch Open
A15
L_P_POSITION/ L_CLUTCH
Switch Open
A23
L_KEY_IN1(LOW SIDE SW)
Switch Open
A24
L_KEY_IN2 (HIGH SIDE SW)
Switch Open
A18
O_ESCL_ENABLE
(O_SPARE2)
Output Off
A17
O_KEYOUT_IND
Output Off
A7
O_EXT_BUZZER
Output Off
A2
O_IMMO_IND
Output Off
B8
O_FL_DR_ANTENNA1
Output
Antenna
B16
O_FL_DR_ANTENNA2
B7
O_FR_DR_ANTENNA1
B15
B6
B14
B5
Editor :
KK Ko
Version:
0.5
O_TRUNK_ANTENNA1 /
O_INTERIOR3_ANTENNA1
B13
O_TRUNK_ANTENNA2 /
O_INTERIOR3_ANTENNA2
B10
O_INTERIOR1_ANTENNA1
B2
O_INTERIOR1_ANTENNA2
B9
O_INTERIOR2_ANTENNA1
Connect to main Battery via
Switch
Connect to main Battery via
Switch
Connect to main Battery via
Switch
Connect to main Battery via
Switch
Connect to main Ground via
Switch
Connect to main Ground via
Switch
Connect to main Ground via
Switch
Connect to main Ground via
Switch
Connect to main Ground via
Switch
Connect to main Ground via
Switch
Connect to main Battery via
Switch
Connect to main Ground via
1KOhm resistor and Output
ON
Connect to main Battery via
resistor 1KOhm and Output
ON
Connect to main Ground via
1KOhm resistor and Output
ON
Connect to main Battery via
resistor 1KOhm and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
O_FR_DR_ANTENNA2
O_BUMPER /
O_TAIL_GATE_ANTENNA1
O_BUMPER /
O_TAIL_GATE_ANTENNA2
ON Configuration
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 10 / 14
.
Proprietary data, company confidential.
All rights reserved.
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Confidado como secreto industrial. Nos reservamos todos los derechos.
O_INTERIOR2_ANTENNA2
B12
O_INTERIOR4_ANTENNA1
B4
O_INTERIOR4_ANTENNA2
B11
O_RESERVE_ANTENNA1
B3
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Connect to main Ground via
200uH Antenna and Output
ON
Output Off
Reserve ( Relay )
Input Open
Reserve ( Generate 200Hz)
O_RESERVE_ANTENNA2
O_SPARE1
(O_VS_CTRL)
L_SPARE1
(F_VS_SIGNAL)
A4
VS
A21
Diagnostic
A22
DIAG_K
Open
Gernernal communication with
LTT
EMS Com.
A25
EMS_COM
Open
Comunication with LTT
A10
CAN_H(L_SPARE3)
Open
Comunication with LTT in
case of CAN option
CAN
Lin
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B1
RF
interface
MSL / ESL
Com.
A11
CAN_L(L_SPARE4)
A26
LIN(L_SPARE2)
Open
Communication with LTT in
case of LIN option
A13
RF_COM
Open
Comunication with LTT
A12
MSCL_COM/ ESCL_COM
Open
Comunication with LTT
A3
GROUND1
Main ground
Main ground
A16
GROUND2
Main ground
Main ground
Ground
2.3
SMART Key Ecu (SMK ECU)
The SMK ECU manages all functions related to “Passive Access”, “Passive Unlocking”
and “Passive Authorization for Operation”.
It reads the inputs (Push button, MSL Knob Push Switch, PARK position Switch),
controls the outputs (e.g. exterior and interior antennas), and communicates via the
CAN/LIN (depends on the vehicle) as well as a single line interface to further devices of
the car.
For communication with the SMART KEY FOB, the SMK ECU generates a request
(challenge) as an encoded and modulated 125 kHz signal at the inductive antenna
outputs and receives the SMART KEY FOB’s response via the external RF receiver.
The main functional blocks of the SMK ECU are:
• Power supply
•
Microcontroller with FLASH Memory
•
Single Line Interface to MSL
•
Single Line Interface to SRX
•
Single Line Interface to EMS
•
Input stage
•
LF antenna amplifier/driver
•
LIN communication with BCM/ETACS (except EN, VQ ; CAN communication)
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 11 / 14
.
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.
The LF antenna amplifier/driver generates a 125 kHz sinusoidal carrier signal which is
distributed to the different antennas.
The signal is 100%-ASK modulated by switching on and off the carrier (the data is
Manchester encoded). The power of the carrier is adjustable by software, which means,
it is possible to set the power level of the antenna driver for every LF-telegram (e.g.
power level stored in the EEPROM).
The LF antenna driver consists of a number of outputs with different switching features.
1. switch on/off driver door handle antenna
2. switch on/off passenger door handle antenna
3. switch on/off bumper antenna for access to the trunk
4. switch on/off interior antennae
5. switch on/off trunk antenna (except SUV)
The SMK ECU comprises:
• the electronics described above
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•
a plastic housing
Emitting LF Antennas:
Inductive antennas in and at the vehicle are used to transform the current, driven by the SMK ECU
antenna driver, into a 125 kHz magnetic field, which is the carrier for the SMART KEY challenge.
Three antennas cover the vehicle’s exterior: two antennas in the Door Handles (DS and PS) cover
the area around the doors; one antenna in the rear bumper covers the area around the trunk/tailgate.
Up to three antennas cover the vehicle’s interior and the trunk interior: two in the passenger
compartment and one in the trunk. (In case of SUV, Three antennas cover the vehicle’s interior and
no trunk antenna)
Those antennas are based on either Vitrovac™ or ferrite core and have twisted pair terminals on
standard pin header.
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 12 / 14
.
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.
3 SMK Fob Configuration (Transmitter)
3.1
Block Diagram
RF (FSK)
Batterie
RF Antenna
CLOCK
Mircrocontroller
LF (125kHz, ASK)
ENABLE
PLL
Transmitter
DATA
Inductive
Receiver
125 KHz
coils
X,Y,Z axis
Configuration
registers
XCLOCK
Processor
Crystal
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Transponder
Unit
LED
Buttons
3.2
Technical Data of SMK Fob
Carrier Frequency NA/China : 315MHz
Field Strength NA/China :
< 75.6uV/m at 3m
Deviation NA/China :
65~80kHz
Carrier Frequency EU :
Field Strength EU :
Deviation NA/China :
433.92MHz
< 90uV/m at 3m
65~80kHz
Carrier Frequency Korea :
Output power Korea
Deviation Korea
447.725MHz
< 10mW
< 5kHz
Modulation :
Baud rate of RF :
Supply voltage :
Battery Type :
FSK
1kBd
3V
Lithium, CR2032
4 SMK ECU Test Board for homologation
4.1
Shape of tool box
Editor :
KK Ko
Version:
0.5
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Aug. 10. 2006
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.
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Switch
4.3
Method to use Test board
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4.2
Prepare VB, GND, K_LINE, GND wire to connect Tool Box.
Connect Power(VB, GND) to Tool Box.
Connect communication line(K-LINE, GND) to Tool Box.
Connect Harness connector to SMK ECU Unit.
After selecting swich No. , give VB power to test board.(Do not give overvoltage)
5 SMK Fob for homologation
5.1
Button operation for homologation
st
1 time button pressing : Low side Frequency (Carrier wave continueous mode)
2nd time button pressing : High side Frequency (Carrier wave continueous mode)
3rd time button pressing : FSK Modulation (Modulated wave continueous mode)
4th time button pressing : Stop operation.
Editor :
KK Ko
Version:
0.5
Document name
Project code
ECO / DF No.
Aug. 10. 2006
File: User Manual for SMK ECU & Fob
Identification No. : Document No.
Page 14 / 14

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Modify Date                     : 2006:11:01 18:43:34+09:00
Create Date                     : 2006:11:01 18:43:34+09:00
Format                          : application/pdf
Title                           : Microsoft Word - User Manual for SMK ECU & Fob.doc
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Author                          : james_kwon
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