ALPS ALPINE WB1G0169 user manual

CONTENTS

1. PREFACE

2. PASSSIVE ACCSESS ENTRY FUNCTIONALITY

2.1. Door Unlocking

2.2. Engine Start

2.3. Engine Stop

2.4. Door Locking (Push switch)

3. ACTIVE ACCESS ENTRY FUNCTIONALITY

3.1. Door Unlocking

3.2. Engine Start

3.3. Engine Stop

3.4. Door Locking

Lid Open

3.5.

4. ENTRY SYSTEM OPTIONS

4.1. System Schematic

4.2. Modules

4.2.1. FOB ECU

4.2.2. Entry System ECU

5. SYSTEM CHARACTERISTICS

5.1. Antenna Areas

5.2. Exciter Locations

5.3. Switch Input Locations (Door handle)

6. ELECTRICAL CHARACTERISTICS

6.1. FOB

6.2. Entry System ECU

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)
 Lid open (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
 Lid open
 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)

W

2.Passsive Accsess Entry Functionality

A handle sw 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.

Door Handle S

Figure 1

2.1.Door Unlocking

 User pushes door handle sw.
 ECU sends LF-challenge via exterior antenna.
 FOB sends RF-response to the ECU.
 Door unlocking status is engaged.
 Doors are opened.

LF

Figure 2

RF

FOB

2.2.Engine Start

 User operates the engine start 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 operates the engine stop 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 influence on the active entry system.

3.4.Door Locking

Same functionality as the current one.

3.5.Lid Open

Same functionality as the current one.

A

r

r

r

r

A

A

r

r

4.Entry System Options

4.1.System Schematic

4.2.Modules

4.2.1.FOB ECU

OTHER ECUS

Body Bus

433.92
MHz

125kHz

ECUECUECU

Local Bus

RF

Amp

X

LF

Y

Amp

ENTRY SYSTEM ECU

Tuner signal

FOB

ASIC

Lock

Unlock

Lid open

Emergency key (Transponder)

FOB

125kHz

LF (>4Kbps)

RF Tuner

433.92MHz

RF (>2Kbps)

4.2.2.Entry System ECU

Dr Door handle

s Door handle

Trunk

Push knob

(Engine start knob)

ENTRY SYSTEM ECU

MCU

Room1

LF

Excite

LF

Excite

Tuner signal

Room2 Room3

LF

Excite

Dr

s

LF

Excite

LF

Excite

LF

Excite

Interior Antenna

Room1: Console Antenna
Room2: Inst. Antenna
Room3: Trunk Antenna

Exterior Antenna

Trunk

Dr : Driver Door Antenna

s : Assist Door Antenna

Trunk : Bumper Antenna

125kHz

5.System Characteristics

5.1.Antenna Areas

Exterior operating range: 0.8m to 1.5m
Interior operating range: Only inside the car

Number of the exterior exciters : typ.3, however, it is depending on the type of the vehicle.
Number of the interior exciters: max.4 (min.2)

Dr As

Back

Figure 6

Interior

Exterior

Exterior antenna functionality:

 Unlock / lock doors.
 Open Lid.
 Activate / deactivate alarm system.
 Activate immobilizer

Interior antenna functionality:

 Deactivate immobilizer
 Engine start

5.2.Exciter Locations

Exterior exciters: 3 doors
Interior exciters: 1 Center Console
2 Inst panel
3 Trunk

Dr

Interior

Exterior

As

Bumper

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)

There are some switches, for instance the door handle contact switch will be used as a triggering for
unlocking and open the door.

Switch inputs: 3 doors

Dr As

Trunk

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 Transmission：FSK Reception：ASK
 Operating supply voltage 2.5V ~ 3.3V (3.0V Battery)
 Operating supply current < 35mA
 Stand-by current < 10.0uA
 Operating ambient temperature -10
 Antenna direction 3-Dimension (X, Y, Z), to be considered

 Battery life 1.5 Years (Low battery indication is considered)

6.2.Entry System ECU

 Operating supply voltage 9.0V ~ 16.0V
 Operating supply current < 55mA
 Stand-by current < 4.0mA
 Operating ambient temperature -30


o

C to +60oC

o

C to +80oC

FCC CAUTION

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 FCC Rules and Industry Canada’s licence-exempt

RSSs. 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 - Danger of explosion if battery is incorrectly replaced.

Replace only with the same or equivalent type.

CAUTION - Do not exposed to excessive heat such as sunshine, fire or the like.

第十二條

經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻

率、加大功率或變更原設計之特性及功能。

第十四條

低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即

停用，並改善至無干擾時方得繼續使用。

前項合法通信，指依電信法規定作業之無線電通信。

低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。

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.

FCC CAUTION

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s

authority to operate the equipment.