05 User Manual

FCC ID: CWTWB1G0169

Users Manual

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FCCID_4079584

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 3.5. Lid Open 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)

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 SW 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 FOB RF Figure 2

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.

4.Entry System Options 4.1.System Schematic OTHER ECUS ENTRY SYSTEM ECU FOB 125kHz Body Bus LF (>4Kbps) ECU ECU ECU Local Bus RF Tuner Tuner signal 4.2.Modules 433.92MHz 4.2.1.FOB ECU RF (>2Kbps) FOB RF ASIC Lock Amp 433.92 MHz Unlock X Lid open Y LF Amp 125kHz Z Emergency key (Transponder) 4.2.2.Entry System ECU ENTRY SYSTEM ECU MCU Dr Door handle Tuner signal As Door handle Interior Antenna Trunk Room1 Room2 Room3 Room1: Console Antenna Push knob Room2: Inst. Antenna Room3: Trunk Antenna (Engine start knob) LF LF LF Exciter Exciter Exciter 125kHz Dr As Exterior Antenna Trunk Body Bus LF LF LF Local Bus Exciter Exciter Exciter Dr : Driver Door Antenna As : Assist Door Antenna Trunk : Bumper Antenna

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) Interior Exterior Dr As Back Figure 6 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 Interior Exterior Dr 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 -10oC to +60oC  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 -30oC 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.


Document Created: 2018-11-13 09:53:24
Document Modified: 2018-11-13 09:53:24
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