CWTWB1G744Passive Entry System (Hand Unit)

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. Trunk/PBD 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 FCC CAUTION 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/PBD open (however, only for request by means of switch operation)  Engine start(/ stop) (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/PBD 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. 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. Figure 2 Door Handle SW LF 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. 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 LF RF FOB 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 Same functionality as the current one. 3.3.Engine Stop Same functionality as the current one. 3.4.Door Locking Same functionality as the current one. 3.5.Trunk/PBD Open Same functionality as the current one. 4.Entry System Options 4.1.System Schematic 4.2.Modules 4.2.1.FOB ECU 4.2.2.Entry System ECU OTHER ECUS LF (>2Kbps) Local Bus ECUECUECU Body Bus ENTRY SYSTEM ECU FOB 125kHz RF (>2Kbps) 433.92MHz FOB RF Amp LF Amp ASIC Z X Y Lock Unlock Trunk/PBD Emergency key (Transponder) 125kHz 433.92 MHz ENTRY SYSTEM ECU MCU Dr Door handle As Door handle Trunk Push knob (Engine start knob) Body Bus Local Bus LF Excite r LF Excite r LF Excite r LF Excite r Room1 Dr As Trunk 125kHz Dr : Driver Door Antenna As : Assist Door Antenna Trunk : Bumper Antenna Exterior Antenna Room1: Console Antenna Room2: Inst. Antenna Room3: Trunk Antenna Interior Antenna LF Excite r LF Excite r Room2Room3 Tuner signal Panic RF Tuner Tuner signal RES 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) Figure 6 Exterior antenna functionality:  Unlock / lock doors.  Open trunk/PBD.  Activate / deactivate alarm system.  Activate immobilizer Interior antenna functionality:  Deactivate immobilizer  Engine start Exterior Interior DrAs Back 5.2.Exciter Locations Exterior exciters: 3 doors Interior exciters: 1 Center Console 2 Inst panel 3 Trunk Figure 7 Antenna location can be different among of type of the vehicle (e.g. coupe, sedan, mini and stuff). Exterior Interior Dr As Bumper 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 Figure 8 Switch inputs can be different among of type of the vehicle (e.g. coupe, sedan, mini and stuff). Dr As Trunk 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 o C to +60 o C  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 +80 o C  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 compli…

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External Photo

Label Drawing and location FCC ID : CWTWB1G744 IC : 1788D-FWB1G744 MODEL NAME:TWB1G744 ALPS ELECTRIC CO.,LTD.

Internal Photo Inside of Case Cover Removed Pattern Antenna(Circumferential Pattern) RF Circuit Part

Test report No. : 32EE0264-HO-02-A Page : 2 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 CONTENTS PAGE SECTION 1: Customer information ·············································································· 3 SECTION 2: Equipment under test (E.U.T.) ···································································· 3 SECTION 3: Test specification, procedures & results························································· 4 SECTION 4: Operation of E.U.T. during testing ······························································· 7 SECTION 5: Radiated emission (Electric Field Strength of Fundamental and Spurious Emission) 8 SECTION 6: Automatically deactivate ········································································· 10 SECTION 7: -20dB and 99% Occupied Bandwidth ························································· 10 APPENDIX 1: Data of EMI test ·················································································· 11 Automatically deactivate................................................................................................................... 11 Radiated Emission (Electric Field Strength of Fundamental and Spurious Emission) ..................... 12 -20dB and 99% Occupied Bandwidth ............................................................................................... 13 APPENDIX 2: Test Instruments ·················································································· 14 APPENDIX 3: Photographs of test setup ······································································· 15 Radiated emission ............................................................................................................................. 15 Worst Case Position .......................................................................................................................... 16 Test report No. : 32EE0264-HO-02-A Page : 3 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 SECTION 1: Customer information Company Name : Alps Electric Co., Ltd. Address : 6-3-36, Nakazato, Furukawa, Osaki-city, Miyagi-pref, 989-6181, Japan Telephone Number : +81-229-23-5111 Facsimile Number : +81-229-22-3755 Contact Person : Toru Kinoshita SECTION 2: Equipment under test (E.U.T.) 2.1 Identification of E.U.T. Type of Equipment : Passive Entry System (Hand Unit) Model No. : TWB1G744 Serial No. : Refer to Section 4, Clause 4.2 Receipt Date of Sample : January 28, 2012 Country of Mass-production : Japan Condition of EUT : Production prototype (Not for Sale: This sample is equivalent to mass-produced items.) Modification of EUT : No Modification by the test lab 2.2 Product Description Model No: TWB1G744 (referred to as the EUT in this report) is the Passive Entry System (Hand Unit). General Specification Feature of EUT : The Hand Unit receives LF signal from I-KEY unit installed in vehicle, transmits RF signal and performs locking and unlocking of a door and an engine start. Or, it transmits RF signal by being pushed button, and performs locking and unlocking of a door and an engine start. Clock frequency in the system : 2MHz (CPU) Radio Specification (Transmitter part) Equipment Type : Transceiver Frequency of operation : 433.92MHz Type of modulation : FSK Antenna Type : PCB Pattern antenna Method of Frequency Generation : SAW Resonator Operating voltage (inner) : DC 3.0V Operating Temperature : -10 to +60 deg. C (Receiver part) Frequency of operation : 125kHz Antenna Type : Loop Coil and Bar Antenna Operating voltage (inner) : DC 3.0V Operating Temperature : -10 to +60 deg. C Test report No. : 32EE0264-HO-02-A Page : 4 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 SECTION 3: Test specification, procedures & results 3.1 Test Specification Test Specification : FCC Part 15 Subpart C: 2012, final revised on February 1, 2012 Title : FCC 47CFR Part15 Radio Frequency Device Subpart C Intentional Radiators Section 15.231 Periodic operation in the band 40.66 - 40.70MHz and above 70MHz 3.2 Procedures and results Item Test Procedure Specification Worst margin Results Remarks Conducted emission FCC: ANSI C63.4:2003 7. AC powerline conducted emission measurements FCC: Section 15.207 N/A N/A*1) - IC: RSS-Gen 7.2.4 IC: RSS-Gen 7.2.4 Automatically Deactivate FCC: ANSI C63.4:2003 13. Measurement of intentional radiators FCC: Section 15.231(a)(1) N/A Complied Radiated IC: - IC: RSS-210 A1.1.1 Electric Field Strength of Fundamental Emission FCC: ANSI C63.4:2003 13. Measurement of intentional radiators FCC: Section 15.231(b) 1.5dB 433.92MHz Horizontal (PK, AV limit) *2) Complied Radiated IC: RSS-Gen 4.8 IC: RSS-210 A1.1.2 Electric Field Strength of Spurious Emission FCC: ANSI C63.4:2003 13. Measurement of intentional radiators FCC: Section 15.205 Section 15.209 Section 15.231(b) 8.2dB 3905.28MHz Horizontal (PK, AV limit) *2) Complied Radiated IC: RSS-Gen 4.9 IC: RSS-210 A1.1.2, 2.5.1 RSS-Gen 7.2.5 -20dB Bandwidth FCC: ANSI C63.4:2003 13. Measurement of intentional radiators FCC: Section 15.231(c) N/A Complied Radiated IC: - IC: Reference data Note: UL Japan, Inc.’s EMI Work Procedures No. 13-EM-W0420 and 13-EM-W0422. *1) The test is not applicable since the EUT does not have AC Mains. *2) The test was performed with severer PK detection for average limit. FCC 15.31 (e) This test was performed with the New Battery (DC 3.0V) and the constant voltage was supplied to the EUT during the tests. Therefore, the EUT complies with the requirement. FCC Part 15.203 Antenna requirement It is impossible for end users to replace the …

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Test report No. : 32EE0264-HO-02-A Page : 15 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 APPENDIX 3: Photographs of test setup Radiated emission Photo 1 Photo 2 Test report No. : 32EE0264-HO-02-A Page : 16 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 Worst Case Position (Horizontal : X-axis/ Vertical: Y-axis) X-axis Y-axis Z-axis Test report No. : 32EE0264-HO-02-A Page : 17 of 17 Issued date : April 4, 2012 FCC ID : CWTWB1G744 UL Japan, Inc. Head Office EMC Lab. 4383-326 Asama-cho, Ise-shi, Mie-ken 516-0021 JAPAN Telephone : +81 596 24 8116 Facsimile : +81 596 24 8124 Worst Case Position Mechanical Key (Not Inserted) Mechanical Key (Inserted) Worst