CM TPMS (Tire Pressure Monitoring) North America Only. - презентация

1 CM TPMS (Tire Pressure Monitoring) North America Only

2 2 System Feature TPM S Display -TPMS Lamp : When the fault from Receiver, LFI, Wheel Electronics is detected in TPMS. - TREAD Lamp : When the measured pressure from one or more Tires is lower than warning limit level -FR Lamp : When the pressure of Front Right Tire is lower than warning limit level - FL Lamp : When the pressure of Front Left Tire is lower than warning limit level - RL Lamp : When the pressure of Rear Left Tire is lower than warning limit level - RR Lamp : When the pressure of Rear Right Tire is lower than warning limit level LF Initiator x 4EA (Only High-Line) - Receiving the signal from Receiver, send LF signal(125KHz) to WE Sensor WheelElectronics(WE) Sensor x4EA Wheel Electronics(WE) Sensor x4EA - Periodically it measures the pressure, temperature, Acceleration inside tire and send RF(315MHz) to receiver - Receive LF(125KHz) signal from Initiator Receiver x 1EA - Receiving the signal from WE Sensor, analyzing it and perform the warning algorithm to control the logic -Drive the display when Tire Event occurs - Controls LF Initiator (Only High-Line) System introduction

3 3 PLL BASED UHF-FSK Transmitter LF Antenna. Battery CR2450HR RF ANTENNA Acceleration Pressure Temperature LF=125KHz RF=315MHz Sensor Block Diagram WE Sensor Sensor Nor SP303 Pressure/ Temperature/ LF Receiver Device + Accelerometer

4 4 Mechanical Specification WE Body Weight33g ± 1g Housing materialPBT + 30%GF Potting materialSilicone Housing dimensions Length:68mm±0.3mm Width:32mm±0.3mm Measures tire pressure, temperature, and acceleration RF Transmitter to periodically broadcast (315MHz/FSK) information (P,T, A unique ID, Battery condition) Receives LF frequency (125KHz) The Color for High Line : Dark Grey The Color for Low Line : Grey Height:23mm±0.3mm Valve Weight13.7g±0.5g Valve MaterialAnodized Aluminum Length43mm-0.5mm Diameter16mm ±0.3mm Valve Nut Torque Specification 4Nm±0.5Nm Length Width Function and Exterior Dimensions WE Sensor

5 5 Capability of using valves with various lengths for perfect mounting on extremely difficult rim applications 0~36 Valve Mounting Packaging Features WE Sensor

6 6 1. WE Sensor is supplied with valve assembled. a) Valve and WE sensor are tightened slightly. 2. Install WE sensor & valve assembly onto Rim of wheel. a) Insert valve into the valve hole of rim b) Set the valve position properly aligning 3 points (3 points means rectangular screw air hole and two outer points of sensor body) c) For secure installing, press sensor body slightly to lower direction of rim 3. Following is the assembly procedure for hexagonal nut. a) First, tighten gently hexagonal nut to valve until it stops. b) Continue to tighten the nut with torque of 1.0Nm (4~6turns) The rectangular screw will be tightened strongly. c) As the torque increases, the rectangular screw will be tightened completely if torque reaches 2.5Nm. d) Tighten the nut more up to torque of 4Nm. e) Valve installation completed. The torque must not exceeds 4.5Nm The hexagonal nut cannot be reused. (Applying torque of 4.0Nm higher, the ring inside nut will be broken) Torque (Nm) Time 4.0 Nm 2.5 Nm Rectangular screw tightened Nut tightened 4.5 Nm Max. torque Nominal torque Sensor body Hexagonal nut Rectangular screw Valve Sensor Mounting Procedure WE Sensor

7 7 K-LINE Transceiver Microprocessor Voltage Regulator RF Receiver (315MHz) Output Drivers to LF (optional) Lamp Driver Battery Ground K-LINE (Only High-Line) (optional) System Block Diagram Receiver

8 8 Mechanical Specification Weight61.5g Housing materialPP + T20 Housing dimensions Length:90.9mm Width:70.5mm Height:26.55mm ±0.45mm 3-second Indicator display prove-out (once per ignition cycle) · Continuous diagnostic integrity check of circuits · LF Initiator Control · Reception of incoming Wheel Electronic RF message frames · Processing of Wheel Electronic parametric information by Warning Algorithm · Acquisition of new Wheel Electronic sensor ID codes (learn) -High Line Only- · Auto-location of Wheel Electronic ID codes to vehicle LFI positions · Indication of Wheel Electronic sensor position(s) during Tire Event(s) Connector retention Force (100mm/min) Min 98 N Connector mate Force (20mm/min) Max 90 N Length Width Function and Exterior Dimensions Receiver

9 9 LF Antenna LF Driver Circuit Intelligent Driver Control With Diagnostics Power (Pin # 3) Control (Pin # 2) Ground (Pin # 1) Single Wire Input From Control Unit * Also known as: LF Trigger Transmitter 5V REG System Block Diagram Initiator

10 10 Mechanical Specification Weight80g ± 1g Housing materialPBT- GF30 Cover materialPBT-GF10 · Continuous diagnostic integrity check of circuits. · 125KHz Coded message (LF Code 3) generation. Bushing materialZinc/Nickel Housing dimensions Length:85.5mm±0.3mm Width:50.5mm±0.3mm Height:36.4mm±0.3mm LFIs Function and Exterior Dimensions Initiator

11 11 WE sensor Receiver Cluster RF Transmission Tire pressure signal is sent periodically IG. ON Sensor operation Data reception LAMP ON (Until pressure added) Measure and sends signal Judge Tire WE sensor Receiver Lamp Abnormal value Normal value RF signal: 315 System check IGN. OFF OK (Lamp ON for 3sec and turned off) Cable connection Low-Line System process NG (Lamp ON continuously)

12 12 WE sensor Initiator Cable connection LF Initiation Receiver Cluster Sensor not operated RF Transmission Operation pause signal to WE sensor WE sensor battery save mode IG. ON Initialization signal to WE sensor Sensor operation Data reception LAMP ON (Until pressure added) Measure and sends signal Judge WE sensor Receiver Lamp LF signal: 125 RF signal: 315 System check IGN. OFF Cable connection Initiator High-Line NG (Lamp ON continuously) OK (Lamp ON for 3sec and turned off) Normal value Abnormal value System process

13 13 System process A = Sensor Tire Pressure 315MHz(FSK) C = ECU with Calculation of Algorithm A = Sensor Tire Pressure 315 MHz (FSK) D =125 kHz(ASK) Trigger Transmitter C = ECU with Calculation of Algorithm Low line (JM) High line (EN) C AAA D C AAA D D D Low Line System : - Receiver X 1EA, WE Sensor X 4 - No display for the location of low pressure tire - Tire rotation : Manual teaching for Sensor ID High Line System : - Receiver X 1EA, WE Sensor X 4, Initiator X 4 - Display for the location of low pressure tire - Tire rotation : Automatic teaching for Sensor ID A A Comparison

14 14 ItemLow-LineHigh-Line Compo- nents 1. TPMS receiver 2. TPMS sensor 3. Display :Cluster 1. TPMS receiver 2. TPMS sensor 3. Display : Cluster 4. LF INITIATOR Function 1. Warning lamp turns on when only one tire among 4 tires has low pressure. 2. The location of tire has low pressure is displayed. Display 1. Location : Cluster 2. Warning method - Warning lamp driving (1 LED) (Not possible to know which tire has low pressure) 3. Warning lamp symbol 4. Transfer method : Hard-wire type 1. Location : Cluster 2. Warning method - Warning lamp driving (5 LED) (Possible to know which tire has low pressure) 3. Warning lamp symbol 4. Transfer method : Hard-wire type System process Comparison

15 15 No.Items Line Remarks HighLow 1InitiatorApplied× 2Tire rotation Automatic ID register Manual ID register Manual register : Using TPMS Exciter 3 Communicating condition (Sensor Receiver) IGN onAlways 4 Sensor identification (Exterior color) Dark GreyGrey 5 Sensor measure & signal sending period Measuring period Normal (Temp, Press.) 4sec ±20%32sec ±20% While parking: 180sec ±20% (for battery save) Abnormal (Temp, Press.) 0.8sec ±20% It assumed as an abnormal value if the pressure change is higher than ±3 Psi or measured temperature is higher than 120 Signal Sending period Normal (Temp, Press.) 60sec±20%180sec±20% Abnormal (Temp, Press.) 0.8sec±20% It assumed as an abnormal value if the pressure change is higher than ±3 Psi or measured temperature is higher than 120 Comparison

16 16 Receiver Operating Mode No.Mode Grade DescriptionRemarks HLLL 1VirginOOSensor ID not registeredBlinks periodically by 1sec 2TransportXX 3NormalOO After sensor ID is registered [ HL : High Line / LL : Low Line ] System operation

17 17 No.Mode Grade DescriptionRemarks HLLL 1StorageOO - Temperature, pressure are measured (period: 56sec) - Acceleration not measured - RF signal is not sent - If the P 150kPa for 70sec or more : RF signal is sent 256times (period: 0.8sec) and then it is switched into Normal mode 2NormalOO -LL : RF signal sending always (period: 180sec) -HL: RF signal sending (period: 60sec) - LL : Switched into Transport mode if LF signal (Code 7) is received. - HL : Vehicle is stationary & no LF signal (Code3) Switched into Sleep mode after 12.7minute. 3TransportXO - LL : Temperature, pressure and acceleration are measured (period: 60sec), no RF signal sending - Switched into Normal mode if following conditions are satisfied: LF signal (Code 9) received OR P150kpa & vehicle is moving [ HL : High Line / LL : Low Line ] WE sensor Operating Mode System operation

18 18 Line Warning lamp HIGH LINELOW LINE INITIAL CHECK (3sec) NORMAL CONDITION Low TIRE pressure TPMS SYSTEM FAIL Low TIRE pressure + TPMS SYSTEM FAIL VIRGIN(UNPROGRA MMED) TRANSPORTED MODE NA DIAGNOSTIC MODE No warning lamp control for diagnostic mode. It follows each mode lamp condition. Warning Lamp Operation off on blinking NORMAL condition AT EOL or AS 1sec ON 1sec OFF 1sec ON 1sec OFF System operation

19 19 Part replacementPlatform (VIN NO.) / Sensor ID registerInspection Works 1. Vehicle Battery removed 2. Receiver replaced 3. Battery re-installed 4. Virgin condition checked - IND. Blinking period checking 1. Connect exciter 2. Platform/VIN NO. register 3. Sensor ID register 4. Remove exciter 1. Normal condition check - IND. check 2. Check again if warning lamp on Tool- - TPMS exciter - Remark Initial receiver condition : VIRGIN - Receiver condition shift : VIRGIN -> NORMAL Works 1. Tire removed 2. Sensor replaced (attached on the car) * Torque : 4.5Nm Not necessary to register platform/VIN NO. 1. Connect exciter 2. Sensor ID register 3. Remove exciter 1. Normal condition check - IND. check 2. Check again if warning lamp on Tool-- - TPMS exciter - Remark If pressure is higher than 150kPa for 70sec or more: Sensor mode will be switched from Storage to Normal mode automatically. - Receiver replacement Sensor replacement System operation A/S process

20 20 Receiver Learning of WE Learning of incorrect WE ID codes is avoided by use of directional RF receiver units located on assembly line near each wheel position. Direction of RF information must match that of wheel being queried. In-Line (Factory)

21 21 - Learning of incorrect WE ID codes in aftermarket conditions is more difficult, but RF information from WE must indicate that it was due to LF command from service tool. This helps ECU discern WE ID codes to learn from nearby WE units that are simply transmitting normal telegrams. - ECU Learning mode can ONLY be entered via a service tool, avoiding the possibility of accidentally learning an incorrect WE ID code during use by customer. Vehicle+ Wheel Assys. Hi Scan ISO Hand Tool After Sales Receiver Learning of WE

22 22 WE Sensor Battery Voltage Low - DTC Code : FL(C1121), FR(C1122), RL(C1123), RR(C1124), SP(C1125) - Set condition : When the low battery voltage (2.2Vdc or less) is two times detected continuously. - Clear condition : When the normal battery voltage (2.2Vdc or more) is detected. WE Sensor Not Transmitting - DTC Code : FL(C1312), FR(C1313), RL(C1314), RR(C1315), SP(C1316) - Set condition : Any sensor signal could be received for timeout period after ignition on. ( Timeout Period : High Line = 4 minutes, Low Line = 9 minutes ) - Clear condition : When a sensor signal is received. System warning algorithm

23 23 WE Sensor Over-Temperature Thermal Shutdown - DTC Code : FL(C1322), FR(C1323), RL(C1324), RR(C1325), SP(C1326) - Set condition : Over temperature thermal shutdown status(120 or more) - Clear condition : Over temperature thermal shutdown status is released. WE Sensor failure - DTC Code : FL(C1332), FR(C1333), RL(C1334), RR(C1335), SP(C1336) - Set condition : When the measurement diagnosis or hardware diagnosis status is received. - Clear condition : When the measurement diagnosis or hardware diagnosis status is not received. System warning algorithm

24 24 WE Sensor Type Installed - DTC Code : FL(C1317), FR(C1318), RL(C1319), RR(C1320), SP(C13 - Set condition : When one sensor signal contains High line WE for a Low line system, (or Low line WE for a High line system) bit in WE Sensor Information byte is received. - Clear condition : When a sensor signal contains the bit of corresponding sensor type with the WE sensor Information byte is received. LFI Open/Short Failure(Only High Line) - DTC Code : FL(C1351), FR(C1352), RL(C1353), RR(C1354) - Set condition : When ECU could not receive the signal of PASS or FAIL from LFI OR, LFI channel is shorted to B+ or GND or Open circuit is detected. - Clear condition : When ECU received the signal of PASS or FAIL from LFI and LFI channel is not shorted to B+ or GND or not opened. System warning algorithm

25 25 LFI Fail Pulse Received(Only High Line) - DTC Code : FL(C1337), FR(C1338), RL(C1339), RR(C1340), SP(C1321) - Set condition : When ECU receives Fail signal from LFI module. - Clear condition : When ECU receives Pass signal from LFI module. WE Sensor LFI Channel Failure(Only High Line) - DTC Code : FL(C1341), FR(C1342), RL(C1343), RR(C1344) - Set condition : Auto-location timing is completed and ECU could not receive the sensor signal by LFI trigger. - Clear condition : Auto-location timing is completed and ECU could receive the sensor signal by LFI trigger. System warning algorithm

26 26 Vehicle Battery Voltage Low - DTC Code : C Set Condition : Vehicle battery voltage measured by ECU is lower than 9.0 volt for 2sec or more. - Clear Condition : Vehicle battery voltage is higher than 9.5 volt for 2sec or more OR Ignition off/on cycle. Vehicle Battery Voltage High - DTC Code : C Set Condition : Vehicle battery voltage measured by ECU is higher than 17.5 volt for 2sec or more. - Clear Condition : Vehicle battery voltage measured by ECU is higher than 16.5 volt for 3sec or more OR Ignition off/on cycle. System warning algorithm

27 27 Lamp Circuit Failure - DTC Code : Tread Lamp (C2510) TPMS Lamp (C2511) Front Left Lamp (2512) (Only High Line) Front Right Lamp (C2513) (Only High Line) Rear Left Lamp (C2514) (Only High Line) Rear Right Lamp (C2515) (Only High Line) - Set Condition : Lamp is ON & Lamp control circuit is shorted to B+. Lamp is OFF & Lamp control circuit is shorted to GND or Open circuit. ( 3 seconds poll when all lamps off,continuously when any lamp is on) - Clear Condition : Lamp control circuit is not shorted to B+ after IG Off/On, Lamp control circuit is not shorted to GND or not opened. ( 3 seconds poll when all lamps continuously off when any lamp is on) System warning algorithm

28 28 EEPROM Diagnostics - DTC Code : C Set Condition : Checksum in EEPROM sensor ID block fails. -OR- Checksum in EEPROM part configuration block fails. - Clear Condition : Checksum in EEPROM sensor ID block passes. -AND- Checksum in EEPROM part configuration block passes. System warning algorithm