User Manual / Functional Description. CONTINENTAL Automotive. X95 ATIC75 Keyless System. Vehicle hands Free and remote control System.

Transcription

1 User Manual / Functional Description of CONTINENTAL Automotive X95 ATIC75 Keyless System Vehicle hands Free and remote control System Type Body controller BCM S A and Card Reader A2C

2 1. SYSTEM OVERVIEW The Free hands system consists of the following units: ID card type A2C which includes a MHz transmitter, a 125 khz receiver and a 125 khz transponder - ID card type A2C which includes a MHz transmitter and a 125 khz transponder. The A2C is a reduced assembly variant of the A2C Card reader type A2C which includes a 125 khz transceiver - Body controller (BCM) type A2C / S A which includes a 125 khz transmitter and a MHz receiver. The BCM drives 6 external dedicated coil antennas for the 125 khz transmission. 2 are located in the doors handles, 1 in the Trunk, and 3 inside of the car. A PCB antenna inside BCM is used for the MHz reception. 2. CAR ACCESS There are two ways to lock or unlock the doors of the car: - The first way is to use the remote control mode by pressing one of the Lock or Unlock buttons on the ID card. Data frames are then transmitted at MHz from the ID card to the car. The BCM processes the frames received and when the code is correct, the doors are locked or unlocked automatically. - This function is allowed using the ID cards A2C and the variant A2C The second way is to use the free hand mode. Unlocking the vehicle : When the sensor located in the door detects the hand, the BCM transmits data frames at 125 khz. When the ID card receives the data and recognizes the content of the inquiry, it transmits the code to the car at MHz. The BCM processes the frames received and when the code is correct, the doors are automatically unlocked. Locking the vehicle : As soon as the door is closed the car transmits inquiries at 125 khz to the ID card. If the ID card is located in one of the doors antenna field, it transmits the answer at MHz and the vehicle remains in an unlocked state. When the ID leaves the neighbourhood of the vehicle, the ID sends at MHz a request to lock. The BCM processes the frames received and then the vehicle is locked. This function is allowed using the ID card A2C only.

3 3. ENGINE START There are two ways to start the engine: - The first way is to insert the ID card in to the Card reader and to press the START button on the dashboard. Each ID card has a transponder. When the START button is pressed, the BCM sends a transponder recognition order to the Card reader. Receiving this order, the Card reader performs a transponder authentication using 125 khz transceiver. The Card reader sends the authentication result to the BCM. The central unit sends the start order to the engine control unit. This function is allowed using the ID cards A2C and the variant A2C The second way is to use the free hand mode: - the user does not need to insert the ID card into the Card reader. When the START button is pressed, the BCM sends a recognize order at 125 khz link via ferrite coil antennas. Receiving this order, the ID card sends authentication at MHz. This function is allowed using the ID card A2C only. In this case the card reader is used as a backup solution. It is used only if the free hand mode does not work. 4. LOCA PASE FOR TPMS Stimulation management for LocAI Data LF. PASE LF antennas are used to perform auto learning and auto localisation of Wheel Unit 1.1. USE OF THE 2 LF FRAMES. The two LF Data frames (LF Data LocStatus and LF Data Trig) are used to carry out the global function: To switch the WUs in permanent LF listening mode and to ask the WU for LF status To trig the WUs

4 Wake up Status Side1 Status Side2 Status Trunk Status LF Data LocStatus LF trig LF trig LF trig Time CALIB_TIME_LOC_2WHEELS CALIB_TIME_LOC_2WHEELS CALIB_TIME_LOC_2WHEELS CALIB_TIME_WUP_LF CALIB_TIME_STATUS CALIB_TIME_STATUS CALIB_TIME_STATUS CALIB_TIME_STATUS 1.2. LF DRIVER PILOTING Five LF Areas Wake Up and Status phase During Wake up and Status phase, the 4 WU mounted on the vehicle have to receive the LF Data LocStatus frames emitted by the vehicle. In this way, 2 LF Area are used sequencially. The vehicle first trig on side 1 and CALIB_INTER_LF_STATUS later on side 2. WU WU BCM LF antenna LF Trig 125kHz LF Area 1

5 WU BC M LF antenna LF Trig 125k LF Area LF Trig phase During LF Trig phase, the driver shall trig only the 2 wheels mounted on the side we want to localize. 3 LF Areas are used. When a localization is done on side1, the driver send LF Data Trig using the LF Area3 every CALIB_INTER_LF_TRIG during CALIB_TIME_LOC2WHEELS. When a localization is done on side2, the driver send LF Data Trig using the LF Area4 every CALIB_INTER_LF_TRIG during CALIB_TIME_LOC2WHEELS. When a localization is done on trunk, the driver send LF Data Trig using the LF Area5 every CALIB_INTER_LF_TRIG during CALIB_TIME_LOC2WHEELS.

6 WU BCM LF antenna LF Data Trig 125kHz LF Area 3 WU BCM LF antenna LF Area 4 LF Data Trig 125kHz

7 WU BCM LF antenna LF Data Trig 125kHz LF Area Antenna configuration of LF emission: LF Area To localize on one side, an LF data trig is send on this side. On opposite side, a destroy bit is sent in order to kill the LF Data frame inhibiting a high transition of a Manchester bit. LF field of the destroy bit signal received at wheel unit level shall be at least equal to the LF Data trig fiels level received on this side. Antenna 1 Triggered side Antenna 1 Triggered side Opposite side Antenna 2 Opposite side ? 0 WITHOUT DESTROY BIT Destroy bit influence WITH DESTROY BIT

8 1.3. CALIBRATION VALUES TG_CALIB_INTER_LF_WUP TG_CALIB_INTER_LF_STATUS TG_CALIB_INTER_LF_TRIG TG_CALIB_TIME_LOC2WHEELS TG_CALIB_TIME_STATUS TG_CALIB_TIME_WUP 200ms 200ms 200ms 16s 6s 12s 5. TECHNICAL DESCRIPTION Technical parameters of the BCM LF transmitter: Carrier frequency: 125 khz Frequency shift: ± 20 khz Number of channels: 1 Duty cycle: < 0.1% Type of modulation: Amplitude Shift Keying (ASK) Baud rate: 4000 bit/s Field strength: < 40 10m Antenna: dedicated antennas Supply voltage: 12V lead acid vehicle battery Voltage supply range: 9V up to 16V

9 6. TYPICAL USAGE PATTERN 5500 cycles / year=15 cycles / day = 0,625 cycle / hour A cycle consists of: Commands sequence of 1 cycle LF frame duration RF frame duration 1 Hand-free start 67 ms 15ms 1 Battery measurement 67 ms 26ms 16 Data pages written in key 79 ms * 16 26ms * 16 1 Hand-free stop 67ms 15ms 1 Card presence survey 47 ms 10ms TPMS localisation ( ms 2400ms frames) 1 Walk Away locking (300ms for 30s) 37 ms * ms * Hand-free unlocking 45 ms 13ms Overall cycle durations 6813ms / cycle 4095ms/cycle LF frame : Modulation : ASK Coding : Manchester Frame duty cycle = 50% LF Ton = 6813ms/2 = 3407 ms / cycle LF Ton/h = 3407 *0,625= 2129ms LF duty cycle = 2129/ ~ 0,059 % RF frames Modulation : FSK Coding : Manchester Frame duty cycle = 100% RF Ton = 4095ms /cycle RF Ton/h = 4095*0,625 = 2559ms RF duty cycle = 2559/ ~ 0,071 %

10 7. MECHANICAL DRAWING a) Reader A2C :

11 CONTINENTAL Automotive SAS b) BCM A2C / S A: ð LABEL DEFINITION AREAS PLACEMENT AND DIMENSION Description Area num. Area size (Lxl in mm) * Position on label in mm (X;Y) of the top-left corner of area 1 "BCM X95" or "BCM L38" (7 digits) Date code (YYDDD) 5 SIEMENS VDO part number (SXXX XXX XXX) (12 digits) 13.5 X 2.5 2;4.5 6 SIEMENS VDO Indice refrence XX (2 digits) 2.5 X ;4.5 7 Renault reference (10 digits) 20 X 3 9;8 8 Customer reference barcode (Code 128, mode B, 3 dots) 36 X 6 2;12 9 CE logo 10 "12V" X 2.5 2;1.5 Version of BCM (L1, L2, L3, L4, L1', L2', L3') (3 digits) 3.5 X ;1.5 Used antenna (INT, EXT) (3 digits) 3.5 X ;1.5 6 X ;1.5 6X6 34; X ;8 SIEMENS VDO logo 25 X 3 46;1.5 SIEMENS VDO serial number barcode (given at ICT test and 28 X 6 44;4.5

12 written in EEPROM : 14 digits) 13 SIEMENS VDO Serial number (given at ICT test and written in EEPROM : 14 digits) 18 X 3 52;11 14 "Made in Fance" 9.5 X ; "Homologation see user's manual" 18.5 X ; Specific marking (black point) for parts that have been reprogrammed * Origin reference of label (0;0) on top-left of the label 2 X 2 2;9 7) BLOCK DIAGRAM OF THE BCM The block diagram below shows the main electronic units of the BCM: C:\DATA\Francois\ X95\4 RF\Homologatio

13 8) BLOCK DIAGRAM OF THE READER The block diagram below shows the main electronic units of the card reader: Connector pins Connector pins allocation Pin Signal 1 Not Connected 2 Card_Reader_Led 3 Vbat 4 Data 5 GND 6 Clock 7 Key_In_Switch 8 Not Connected

14 CONTINENTAL Automotive SAS 9) PHOTOGRAPHY OF THE BCM Photo of the BCM A2C / S A: Housing top view

15 Photo of the BCM A2C / S A: Housing bottom view

16 10) PHOTOGRAPHY OF THE READER Photo of the reader A2C : Housing top view Photo of the reader A2C : Housing bottom view

17 Photo of the reader A2C : Housing top view Photo of the reader A2C : Housing bottom view