Continental Refrigerator SMK User manual

Continental Automotive Systems Corporation
29, Siemens-Road, Icheon-City, Gyeonggi-do, 467-080, Korea
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SV SASCO Identification No. :
Document : User Manual for Smart Key ECU
Project : Smart Key ECU
Model name : SMK
Version: 0.1
Date: Aug. 10 '06
Engineering change order-No.:
Manufacturer: Continental Automotive Systems Corporation
Number of pages: 10
Filename: User Manual for SMK ECU_revised

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 2 / 10
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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.
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 Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 3 / 10
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Contents list Page
1. System configuration 4
1.1 scope of SMART KEY SYSTEM Erro! Indicador não definido.
1.2 short description of the SYSTEM Erro! Indicador não definido.
1.2.1 General Definition of SMART KEY Erro! Indicador não definido.
1.2.2 Wireless Communication Erro! Indicador não definido.
1.2.3 concept Description Erro! Indicador não definido.
1.2.4 System Architecture
2Smart Key ECU Operation 6
2.1 LF transmission 6
2.2 Block Diagram 8
2.3 Pin Description 8
2.4 Technical specification 10

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 4 / 10
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1. Smart Key System configuration
The System offers the following features:
•passive access for driver side and passenger side door as well as trunk/tailgate
•passive start after interior detection of the SMART KEY FOB (without trunk interior and
hat shelf detection)
•max. 2 SMART KEY FOBs can be handled by the system
•immobilizer backup antenna driver integrated into MSCL(MSCL system) or FOB
holder(ESCL system)
•communication to the engine management system via a single line interface
The SMART KEY system is a system that allows the user to access a vehicle and start a
engine in a very convenient way. To access the vehicle, traditional key or remote control unit
operating is needless. To start engine, tranditional key inserting, and then rotating procedure
is needless.
The user carries a SMART KEY FOB which itself does not require any conscious actions
by the user (e.g. press a Key button). The SMART KEY system is triggered by pressing a
door handle push button or only grabbing.
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 Colume Lock (MSCL) or Electirc
Steering Colume Lock(ESCL) is released. Before this, a communication between the
SmartKey ECU and the SMART KEY FOB is needed.
1.1 Wireless Communication
Electromagnetic waves are used to exchange information between the SmartKey ECU
and the SMART KEY FOB. LF transmitter(125kHz) is equipped in SmartKey ECU, RF
receiver(433Mhz) is equipped in SmartKey SRx, and LF receiver and RF transmitter are
equipped in SmartKey FOB, For LF transmission, a magnetic field with a frequency of
125 kHz and ASK modulation is used. And for RF transmission, 433MHz frequesncy is
used.
1.2 Wireless concept Description
In SmartKey system, LF and RF signal is used for communication between SmartKey
FOB and Vehicle. 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 : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 5 / 10
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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.
Figure 1: Principle of Communication
Challenge
(LF-Up-link)
Response
(RF-Down-link)
SMART KEY FOB
Passive Access
Detection Range
Passive Access
Detection Range

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 6 / 10
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2 Smart Key ECU Operation
SmartKey ECU is one system component as a part of SmartKey System.
The SmartKey ECU manages all functions related to “Passive Access”, “Passive
Unlocking”, 'Passive Locking' and “Passive Authorization for Operation”.
SmartKey ECU reads several inputs (e.g Push knob button SW, FL_Door_Lock/unlock
SW, FR_Door_Lock/unlock SW, Trunk_Lid SW, P_Position SW, Key_In SW,
Brake_SW, Clutch SW, FL_Capa_Sensor, FR_Capa_Sensor, SSB_SW), controls the
several outputs (e.g. exterior and interior antennas, IMMO_IND, KEYOUT_IND,
Buzzer), and communicates via the CAN/LIN (depends on the vehicle) as well as a
single line interface with further devices of the car.
For communication with the SMART KEY FOB, the SMK ECU generates a request
signal as an encoded and modulated 125 kHz wave to the inductive antenna outputs
and receives the SMART KEY FOB’s response via the serial interface line from
SmartKey SRx receiver.
The main functional blocks of the SMK ECU are:
•Power supply
•Microcontroller with FLASH Memory
•Single Line Interface to communicate with MSCL/ESCL, SRx, EMS
•Input stage
•LF antenna amplifier/driver
•CAN/LIN communication circuit
•Indicator Output
•Buzzer Output
2.1 LF transmission
The LF 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
4KHz Manchester encoded data). The power of the carrier signal is adjustable by
software, which means, it is possible to set the power level of the antenna driver for
every LF-telegram.
The LF antenna driver consists of a number of outputs with different switching features.
1. switch on/off Front Right door handle antenna
2. switch on/off Front Left door handle antenna
3. switch on/off Bumper antenna
4. switch on/off Interior antenna
5. switch on/off Trunk antenna

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 7 / 10
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LF Antennas:
LF Antenna located in and at the vehicle connecting via twisted wire with SmartKey ECU. SmartKey
ECU LF driver drives 125KHz current to LF Antenna, and that current make LF Antenna radiating
LF(125KHz) magnetic field.
Three antennas cover the vehicle’s exterior: two antennas in the Door Handles (FR and FL) cover
the area around the doors; one antenna in the Bumper covers the area around the trunk/tailgate.
Up to three antennas cover the vehicle’s interior and 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.
SmartKey
ECU
Body CAN/
LIN
BCM,
DDM,
...
Single line
serial communication
10.4 kBd / KWP2000
Diag-Tool
Single line
serial communication
4.8 kBd
EMS
SMK
LF driver
Single line
serial communication
9.6 kBd
Fob
SMK
LF
MSCL/ESCL
SRx
Single line
serial communication
9.6 kBd
RF communication
(RKE and Pase)
1kBd FSK
315/433/447 MHz
LF antenna
(SMK)
LF communication
(SMK)
3.9 kBd ASK
125 KHz
Figure 2: SmartKey ECU Interface Diagram

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 8 / 10
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2.2 Block Diagram
MCU
SCAN Tool
MCU
Engine ECU
MCU
SRx
MSCL(ESCL)
MCU
Reg.
VBD
Vcc
V_IGN1
VBD
+37V
VBD
VBD_SW
VBD_SW
VBD_SW
VBD
VBD
VBD
VBD
Buffer
VBAT
L_IGN1
V_IGN1
A_ALT_L
L_ACC
L_KEY_IN2 (HIGH SIDE SW)
L_P_POSITION/*1L_CLUTCH
L_TRUNK_LID/L_TAIL_GATE
L_PUSH_KNOB/L_FL_CAPA_SENSOR
L_FL_DR_LOCK/UNLOCK
Vcc
VBD
O_SPARE1(O_VS_CTRL)
L_SPARE1(F_VS_SENS_SIGNAL)
O_EXT_BUZZER
CAN
CAN_H
CAN_L
LIN
DIAG_K
EMS_COM
MSCL_COM / ESCL_COM
RF_COM
*1O_ESCL_ENABLE
O_IMMO_IND
O_KEYOUT_IND
O_FL_DR_ANTENNA1
O_FL_DR_ANTENNA2
O_FR_DR_ANTENNA1
O_FR_DR_ANTENNA2
O_INTERIOR1_ANTENNA1
O_INTERIOR1_ANTENNA2
O_INTERIOR2_ANTENNA1
O_INTERIOR2_ANTENNA2
O_TRUNK_ANTENNA1 / O_INTERIOR3_ANTENNA1
O_TRUNK_ANTENNA2 / O_INTERIOR3_ANTENNA2
O_BUMPER_ANTENNA1/O_TAIL_GATE_ANTENNA1
O_BUMPER_ANTENNA2/O_TAIL_GATE_ANTENNA2
+37V
+37V
Tx
Rx
Tx
Rx
Rx
Tx
Rx
Tx
Tx
Rx
Tx
Rx
SPI
B+
B+
MCU
BCM
LIN
...
Module 1
Module N
Vehicle
Speed
IGN VBAT
Vcc
Vcc
Vcc
Vcc
B+
Analog
Analog
Analog
Step Up
Reg.
GROUND1
GROUND2
MCU
* Remarks
1) *1 : HM series ESCL option
2) *2 : GH09MY option
ATIC64
O_INTERIOR4_ANTENNA1/HAT_SHELF_ANTENNA1
O_INTERIOR4_ANTENNA2/HAT_SHELF_ANTENNA2
O_RESERVE_ANTENNA2
O_RESERVE_ANTENNA1
L_KEY_IN1 (LOW SIDE SW)
A1
A14
A8
A9
A24
A23
A15
A5
A19
A6
A20
A4
A21
A7
A3
A16
A10
A11
A26
A22
A25
A13
A12
A18
A2
A17
B8
B16
B7
B15
B10
B2
B9
B1
B12
B4
B11
B3
B5
B13
B6
B14
( Speed : 9.6 kbps )
( Speed : 10.4 kbps )
( Speed : 4.8 kbps )
( Speed : 9.6 kbps )
( Speed : 9.6 kbps )
L_FR_DR_LOCK/UNLOCK
VBD
KEY_IN2_HIGH
KEY_IN2_HIGH
B+
B+
B+
B+
B+
L_BRAKE
*1HM series ESCL Option
B+ L_SSB_SW2
*1HM series ESCL Option/*2GH09MY Option
B+ *2GH09MY Option
*2GH09MY Option
L_BRAKE
VBD
L_FR_CAPA_SENSOR
*2GH09MY Option
*2GH09MY Option
*1HM series ESCL Option/*2GH09MY Option
*1HM series ESCL Option/*2GH09MY Option

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 9 / 10
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2.3 Pin Description
Function I/O Pin Description
Analog Input
A1 VBAT
A8 A_ALT_L
Logic Input
A9 L_ACC
A14 L_IGN1
A19 L_PUSH_KNOB/L_FL_CAPA_SENSOR
A6 L_FL_DR_LOCK/ UNLOCK
A20 L_FR _DR_LOCK/ UNLOCK
A5 L_TRUNK_LID/L_TAIL_GATE
A15 L_P_POSITION/ L_CLUTCH
A23
L_KEY_IN1(LOW SIDE SW)
L_SSB_SW2
A24
L_KEY_IN2 (HIGH SIDE SW)/L_BRAKE
L_FR_CAPA_SENSOR
A21 L_BRAKE
Output
A18 O_ESCL_ENABLE
A17 O_KEYOUT_IND
A7 O_EXT_BUZZER
A2 O_IMMO_IND
A4 O_SPARE1
Antenna
B8 O_FL_DR_ANTENNA1
B16 O_FL_DR_ANTENNA2
B7 O_FR_DR_ANTENNA1
B15 O_FR_DR_ANTENNA2
B6 O_BUMPER /O_TAIL_GATE_ANTENNA1
B14 O_BUMPER /O_TAIL_GATE_ANTENNA2
B5 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

Editor : KK Ko Document name Project code
Version: 0.5 Aug. 10. 2006
ECO / DF No.
Identification No. : Document No.
File: 01 User Manual for SMK ECU_revised Page 10 / 10
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B1 O_INTERIOR2_ANTENNA2
B12 O_INTERIOR4_ANTENNA1
B4 O_INTERIOR4_ANTENNA2
B11 O_RESERVE_ANTENNA1
B3 O_RESERVE_ANTENNA2
Diagnostic A22 DIAG_K
EMS Com. A25 EMS_COM
CAN
A10 CAN_H
A11 CAN_L
Lin A26 LIN
RF interface A13 RF_COM
MSCL / ESCL Com. A12 MSCL_COM/ ESCL_COM
Ground
A3 GROUND1
A16 GROUND2
2.4 Technical specification
Carrier Frequency : 125 kHz
Power Supply : DC 12 V
Frequency Range : 125 kHz
Modulation Technique : ASK
Frequency Generation : X-Tal
Operating Conditions : -20 ℃~ + 60 ℃
Antenna Type : PCB pattern type (Loop Coil Antenna)
Number of Channels : 1 CH