DENSO Korea EG00270 Smart Key ECU User Manual Locking Unlocking the doors

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Document ID	3323155
Application ID	peAvBXOOfhbMmcOfp481HQ==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	7.9kB (98762 bits)
Date Submitted	2017-03-20 00:00:00
Date Available	2017-09-16 00:00:00
Creation Date	2017-03-17 13:41:46
Producing Software	Adobe PDF Library 11.0
Document Lastmod	2017-03-17 13:53:02
Document Title	Locking/Unlocking the doors
Document Creator	Wordìš© Acrobat PDFMaker 11
Document Author:	技術管理部

. Manual Requirement of FCC / IC
Our product (EG00270) is one of vehicle parts incorporated into the vehicle as original equipment.
Therefore, we will not supply the user’s manual. However, we will ask the vehicle manufacturer to
include following statements in the vehicle user’s manual in accordance with FCC and IC requirements.
1. Requirement for User Manual
1.1. FCC Requirement
1.1.1. In accordance with 15.21 of FCC rule, following statement will be included in the user’s manual.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
1.1.2. In accordance with requirement of FCC§15.19(a)(5), following statement will be included in the
user’s manual.
NOTE
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.
1.2. IC Requirement
1.2.1. In accordance with requirement of RSS-GEN, following statement will be included in the user’s
manual.
NOTE
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.
2. Technical description of the system
2.1 Type number
-Smart Key ECU
: EG00270
2.2 Specifications
- Nominal Power supply voltage
: 12VDC
Receiver(RF)
-Nominal frequency
: 433.92MHz
-Oscillator frequency
: 21.948717MHz (Crystal)
-Type of modulation
: FSK(F1D)
-Type of receiving system
: Super-heterodyne
-Antenna
: RF ANT : Internal antenna
Transmitter(LF)
-Nominal frequency
: 134.2kHz
-Oscillator frequency
: 4.026 MHz (Crystal)
-Type of modulation
-Antenna
: OOK(A1D)
: LF ANT1: External antenna (inside Cabin)
LF ANT2: External antenna (inside Trunk)
LF ANT3: External antenna (inside Bumper)
LF ANT4: External antenna (Built in Door HDL)
LF ANT5: External antenna (Built in Door HDL)
Transponder
-Nominal frequency
: 134.2kHz
-Oscillator frequency
: 4.00MHz (Resonator)
-Type of modulation
: OOK(A1D)
-Antenna
: TP ANT: External antenna (Built in SSB)
3.Outline of the system
A Smart Key system is a comfort feature that allows the user to lock, unlock without
using a mechanical key.
Once the user has accessed into the vehicle, with his Smart Key Fob he has the
possibility to switch between terminals (OFF-ACC-IGN) and to start the engine.
The user has to carry with him the Smart Key Fob as a wireless authentication is
performed when toggle button or Start Stop Button inputs are triggered.
3.1. Smart Key ECU
The SMK manages all functions related to “SMK Start”
The SMK unit reads the inputs (e.g. Start Stop Button), controls the outputs (e.g. exterior
and interior antennas), and communicates via the CAN network as well as a single line
interface to further devices of the car.
For communication with the SMART FOB, SMK generates a request (challenge) as an
encoded and modulated signal (134.2 kHz) at the inductive antenna outputs and
receives the SMART key FOB's response via the internal RF ANT and internal receiver.
The LF antenna amplifier/driver generates a sinusoidal carrier signal (134.2 kHz), which
is distributed to the different antennas. The signal is 100%-ASK modulated by switching
on and off the carrier.
3.2. LF Antennas:
Inductive antennas in and at the vehicle are used to transform the current, driven by the
SMK antenna driver, into a magnetic field (134.2 kHz), which is the carrier for the SMK
challenge.
One antenna covers the vehicle’s interior. One antenna covers the interior of the Trunk.
Two antenna in the Door Handles (Left side and Right side) cover the area around the
doors. One antenna in the rear bumper covers the area around the trunk for access to
the trunk.. Those antennas are based on ferrite core and have a pair of twisted copper
cables from antenna to pin header.
3.3. Transponder Antenna:
Built in the Start Stop Button to communicate with the transponder by a base
station and using wireless communication :(134.2kHz)
3.4 Installation in vehicle
The Smart Key ECU is installed inside the vehicle.
Smart Key FOB
Smart Key ECU
LF ANT
RF ANT
TP ANT
Smart Key ECU
LF ANT
Driver
RF
Receiver
Transponder
Driver
Installation in vehicle
Fig. Outline of the System
Smart Key FOB
Door Handle with
LF Antenna
Electronic Steering
Column Lock
Start Stop Button with
Transponder Antenna
Smart Key ECU
with
RF Internal Antenna
RF Receiver
and LF Driver
LF Antenna
Fig. Installation of the System

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