ALPS ALPINE WDU623 Passive Entry System transceiver User Manual 424690

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Document ID	424690
Application ID	U5pcC2qsdjU3lZ+KPDLnDg==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Microsoft Word - pdf
Filesize	46.08kB (576001 bits)
Date Submitted	2004-05-21 00:00:00
Date Available	2004-05-21 00:00:00
Creation Date	2004-05-21 17:04:55
Producing Software	Acrobat Distiller 5.0.5 (Windows)
Document Lastmod	2004-05-21 17:04:55
Document Title	Microsoft Word - 424690.DOC
Document Creator	PScript5.dll Version 5.2
Document Author:	Administrator

CONTENTS
1.
PREFACE
2.
PASSSIVE ACCSESS ENTRY FUNCTIONALITY
2.1.
2.2.
2.3.
2.4.
3.
Door Unlocking
Engine Start
Engine Stop
Door Locking (Push switch)
ACTIVE ACCESS ENTRY FUNCTIONALITY
3.1.
3.2.
3.3.
3.4.
4.
Door Unlocking
Engine Start
Engine Stop
Door Locking
ENTRY SYSTEM OPTIONS
4.1.
4.2.
5.
System Schematic
Modules
4.2.1. FOB ECU
4.2.2. Entry System ECU
SYSTEM CHARACTERISTICS
5.1.
5.2.
5.3.
6.
Antenna Areas
Exciter Locations
Switch Input Locations (Door handle, Touch sensor)
ELECTRICAL CHARACTERISTICS
6.1.
6.2.
FOB
Entry System ECU
FCC WARNING
NOTICE
1.Preface
This document describes the requirements and operation of the Passive Entry System. However, this
document is especially for the Entry system ECU (acronym for Electric Control Unit) and the FOB.
The FOB consists the following functionality for passive access and active access:
•
•
•
•
•
Door unlocking / locking (however, only for request by means of switch operation)
Trunk unlocking / locking (however, only for request by means of switch operation)
LF decoding
RF encoding
Communication data encryption (cryptograph, anti-collision, rolling code and stuff)
And the entry system ECU consists of the following functionality:
•
•
•
•
•
•
•
•
Door unlocking / locking
Trunk unlocking / locking
Engine start (/ stop)
LF encoding
RF encoding
Communication data encryption (cryptograph, anti-collision, rolling code and stuff)
LF antenna unit control
Communication with the node ECUs connected to the body bus (e.g. CAN, J1850, customer
dependent bus)
As a further function, both the FOB and the entry system ECU provides the following function:
• Learning mode for programming the manufacturing data and stuff
• Data locking and password protection
• Diagnostic (based upon ISO9141 if required)
2.Passsive Accsess Entry Functionality
A proximity sensor located on, for example the door handles, mirrors and trunk lid will be used for proximity
check if user is in neighborhood of the vehicle. The switch input will trigger for unlocking and open the
doors and trunk.
Proximity sensor
Figure 1
2.1.Door Unlocking
•
•
•
•
•
User pull / touch the door handle (sensing of door handle switch).
ECU sends LF-challenge via exterior antenna.
FOB sends RF-response to the ECU.
Door unlocking status is engaged.
Doors are opened.
LF
RF
Figure 2
FOB
2.2.Engine Start
•
•
•
•
•
•
User pushes / operate the engine start button / knob.
ECU sends LF-challenge via interior antenna.
FOB sends RF-response to the ECU.
Immobilizer ECU receives and authorize the response.
Engine controller ECU receives the authorization for engine strat.
Start the engine.
RF
LF
FOB
Figure 3
2.3.Engine Stop
•
•
•
•
User pushes / operate the engine stop button / knob.
ECU communicates with the other ECU for engine start request.
Engine controller ECU receives the request.
Stop the engine
Figure 4
2.4.Door Locking (Push switch)
•
•
•
•
•
•
User closes the door and pushes the switch (sensing of door locking switch).
ECU sends LF-challenge via exterior antenna.
FOB sends RF-response to the ECU.
Door locking status is engaged.
Doors are locked.
(Indicates the door locking status by means of Flasher / Buzzer or stuff)
Figure 5
3.Active Access Entry Functionality
3.1.Door Unlocking
Same functionality as the current one.
3.2.Engine Start
This function does not effect on the active entry system.
3.3.Engine Stop
This function does not have influencei on the active entry system.
3.4.Door Locking
Same functionality as the current one.
4.Entry System Options
4.1.System Schematic
OTHER ECUS
FOB
ENTRY SYSTEM ECU
125kHz
LF (>2Kbps)
Body Bus
ECU
ECU
315MHz
ECU
RF (>4Kbps)
Local Bus
4.2.Modules
4.2.1.FOB ECU
FOB
ASIC
RF
Amp
315MHz
Lock
Unlock
125kHz
Trunk
LF
Amp
Key lock
Emergency key (Transponder)
4.2.2.Entry System ECU
ENTRY SYSTEM ECU
MCU
FT handle
315MHz
RF
Amp
BT handle
FH handle
BH handle
Trunk lid
Engine start
Interior
LF
Exciter
FT
125kHz
BT
FH
BH
Trunk
Body Bus
Local Bus
LF
LF
LF
LF
LF
Exciter Exciter Exciter Exciter Exciter
5.System Characteristics
5.1.Antenna Areas
Exterior operating range:
Interior operating range:
0.8m to 1.5m
Only inside the car
Number of the exterior exciters :
vehicle.
Number of the interior exciters:
max. 5 (min. 2), however, it is depending on the type of the
1 (1-Dimmension) or 2 (2-Dimension required)
Interior
Exterior
FT
BT
Figure 6
Exterior antenna functionality:
• Unlock / lock doors and trunk.
• Activate / deactivate alarm system.
• Activate immobilizer
Interior antenna functionality:
• Deactivate immobilizer
• Engine start
5.2.Exciter Locations
Exterior exciters:
Interior exciters:
2 doors and 1 trunk
1 driver’s sheet
2 column / shift lever (X-Y 2-Dimension)
Interior
Exterior
FT
BT
Figure 7
Antenna location can be different among of type of the vehicle (e.g. coupe, sedan, mini and stuff).
5.3.Switch Input Locations (Door handle, Touch sensor)
There are some kind of sensors, for instance the door handle contact switch and touch sensor, will be
used as a triggering for unlocking and open the door.
Switch inputs:
2 doors and 1 trunk
FT
BT
Figure 8
Switch inputs can be different among of type of the vehicle (e.g. coupe, sedan, mini and stuff).
6.Electrical Characteristics
6.1.FOB
•
•
•
•
•
•
ASK / FSK modulation
Operating supply voltage
Operating supply current
Stand-by current
Operating ambient temperature
Antenna direction
• Battery life
2.1V to 4.0V (3.0V Battery)
< 7mA
< 10.0uA
-20 C to +60 C
3-Dimension (X, Y, Z), to be considered
2 Years (Low battery indication is considered)
6.2.Entry System ECU
•
•
•
•
•
Operating supply voltage
Operating supply current
Stand-by current
Operating ambient temperature
10.5V to 16.0V
< 15mA (20mA to 30mA)
< 4mA
-40 C to +85 C
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
NOTICE
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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Title                           : Microsoft Word - 424690.DOC

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