S&T Remote Keyless Entry System TECHNICAL SPECIFICATION ORIGINATING CENTER: S&T Daewoo TECHNICAL CENTER FILENAME: RKE_RECEIVER.doc REVISION NO.
R&D / Automotive Electronics TABLE OF CONTENTS 1. 1.1 1.2 2. 3. 3.1 3.1.1 3.1.2 3.2 3.3 3.4 3.5 3.6 3.7 3.8 4. 4.1 4.1.1 4.1.2 4.1.3 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 5. 5.1.1 5.1.2 5.1.2.1 5.1.2.2 5.1.2.3 5.1.2.4 5.1.2.5 5.1.2.6 5.1.2.7 5.1.3 5.1.3.1 5.1.3.2 5.1.3.3 5.1.3.4 5.1.3.5 5.1.3.6 5.1.3.7 5.1.3.8 5.1.3.9 6. 6.1.1 6.1.2 6.1.3 Title INTRODUCTION...............................................................................................................3 REMOTE KEYLESS ENTRY FUNCTION .............
R&D / Automotive Electronics 1. INTRODUCTION This document is the technical specification of the remote keyless entry (RKE) System for the car consisting of S&T (S&T Daewoo Co.,. LTD) receiver (RX), S&T transmitter (TX) and Horn. The purpose of the S&T RKE system is to provide the remote control function and the anti-theft function in which it is installed and to prevent it from being driven by unauthorized users.
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R&D / Automotive Electronics B+ 15A BATTERY 15A IGNITION A25 IGN1 A15 RK RK 960 960 HOOD OPEN SW HOOD OPEN SW T255 T255 NA_NB NA_NB A07 DRIVER PART DOOR LOCK MONITORING A13 A26 RIGHT FLASHING BULB LEFT FLASHING BULB A09 DRIVER KEY CYLINDER UNLOCK SW DOOR OPEN SW A12 A08 PASSENGER PART PASSENGER KEY CYLINDER UNLOCK SW A20 ••Door DoorLock/Unlock Lock/Unlock ••Trunk TrunkUnlock Unlock A19 ••Anti AntiTheft Theft ••Diagnostic Via Kline K Diagnostic Via K-line ••On-star via On On-star viaIP
R&D / Automotive Electronics 3. RKE FUNCTION 3.1 DOOR LOCK / UNLOCK USING TRANSMITTER 3.1.1 TRANSMITTER LOCK / UNLOCK/PANIC This system function by using two buttons of the valid Tx is shown at Table 1. Now we define the “VALID Tx” as the ID code (Fixed code + Crypto code) of the Tx is memorized by the Control Unit.
R&D / Automotive Electronics When the ignition is off and the key reminder is off, the Rx drives panic function by the Tx panic button. But it does not change the Rx status. For the information of the remote panic, the hazard lamp blinks 28sec, the period is 0.5sec and duty ratio is 0.25sec, the horn operates 28sec, the period is 1sec and the duty ratio is 0.5sec 3.1.2 TRANSMITTER UNLOCK/LOCK/ TRUNK This system function by using two buttons of the valid Tx is shown at Table 2.
R&D / Automotive Electronics For the information of the remote trunk open. But it does not change the Rx status. LOCK OUT 500ms Horn 1. No Theft 30ms 2. Any Theft or Key C ylinder On Flashing Bulb 1. No Theft 500ms 2. Any Theft or Key C ylinder On Security LED 1. No Theft 870ms 130ms 2. Any Theft or Key Cylinder On U NLO C K O U T 500m s Ho rn F la s h in g Bu lb 1. No rm a l 2.
R&D / Automotive Electronics ARMING TRUNK KEY CYLINDER REARMING ARMING 30sec 500mse c TRUNK OPEN ARMING TX TRUNK OPEN REARMING ARMING 30sec 500msec TRUNK RELEASE 500msec TRUNK OPEN [Figure 2. FUNCTION FLOW] 3.2 BURGLAR ALARM At the arming mode, if below signal input is recognized by the Rx, the burglar alarm (audible alarm (horn) and visible alarm(hazard Lamp) ) is during 28 seconds operated and 5 seconds paused. The alarm activating count is the option by customer.
R&D / Automotive Electronics If the above theft detection input is received at the arming mode, the type of theft is memorized at the Rx EEPROM. But the alarm duration is not prolonged even if theft detection signal is recognized during the alarm mode. That is, the Rx ignores the theft detection input until the alarm is finished.
R&D / Automotive Electronics seconds after all door is unlocked by the Tx unlock button or the Tx door button, then all door is locked again and the Rx also goes to the arming mode. At the case of the safety lock, even though the Rx goes to the arming mode, the EEPROM data of the Rx about alarm is not changed. If the remote door unlock is actuated again during the waiting time (30 seconds), the safety lock process is restarted. 3.
R&D / Automotive Electronics Active range requirements shall be met with the receiver mounted in the vehicle in its production intent mounting location and orientation. Range requirements are specified for open, flat, paved terrain, with fair weather (no rain or snow), temperatures between 0°C and 80°C, and fob height between 0.5 and 1.5 meters above the ground surface. Range shall be measured from the center of the vehicle, and is independent of fob orientation.
R&D / Automotive Electronics 4. SYSTEM CONFIGRATION 4.1 RECEIVER 4.1.1 FUNCTION The control unit is operating the section “3. RKE FUNCTION” 4.1.2 ELECTRIC SPEC ITEM DISCRIPTION operating voltage 8V ~ 16V(Test Voltage : 12.6V) standby current MAX 5mA sensitivity -100dBm(Min) operating frequency 315MHz + 5KHz operating temperature -40 ℃ ~ 85℃ Antenna type Internal Herical antenna PCB thickness 16mm PCB material FR - 4 [Table 5. Electric specification for Receiver] 4.1.
R&D / Automotive Electronics 4.2 4.2.1 4.2.2 TRANSMITTER ELECTRIC SPEC ITEM DISCRIPTION operating voltage 2.5V ~ 3.2V standby current MAX 1uA operating current MAX 10mA output power 10mW modulation FSK operating frequency 315MHz + 5KHz operating temperature -10℃ ~ +60℃ Antenna type PCB Pattern ANTENNA PCB thickness 8mm PCB material FR-4 [Table 6. Electric specification for Transmitter] DATA FORMATION [Figure 4. Data Code Formation] Title Remote Keyless Entry System Specification Written by Date 24 .
R&D / Automotive Electronics unit : us Symbol Characteristic TE Number ALL of TE Min. Type Max Basic pulse element 1 260 400 660 TBP PQM bit pulse width 3 780 1200 1980 TP Preamble duration 23 6.0 9.2 15.2 TH Header duration 10 2.6 4.0 6.6 THOP Hopping Code duration 96 25.0 38.4 63.4 TFIX Fixed Code duration 102 26.5 40.8 67.3 TG Guard Time 39 10.1 15.6 25.7 Total Transmit Time 270 70.2 108.0 178.2 1282 833 505 PWM data rate [Table 7.
R&D / Automotive Electronics are installed backwards. Battery replacement shall not require the customer to handle any loose components (i.e. circuit boards, battery clips, etc.). Battery life shall exceed 2 years at 25°C based on usage specified in section 3.1.1, with transmission time corresponding to 1 second duration button press activations. 4.2.5 LED During the normal transmission the led operating is ON. The transmitter button continuously ON, during about 3.
R&D / Automotive Electronics 5. SYSTEM INPUT/OUTPUT CIRCUITS 5.1.1 SERIAL DATA LINK(NO. A17) It is the line for communicate receiver and diagnostic device. It defines RKE diagnostic protocol regulation(#DPE-AE-RK509603S) 5.1.2 5.1.2.1 ELECTRIC OUTPUT HAZARD LAMP (LEFT : A26, RIGHT : A13) - Type : Normal open Relay(TWIN,JJM2W-12V-2A) - Output Level : Battery voltage to GND - Max. switching current : 2 x 60 A - Max.
R&D / Automotive Electronics - Max. Low Output Level - Max. Output Current - Fault Diagnostic Request - State During Reset - Short Circuit Protection Request - Over Current Protection Request : 1V to GND : 500mA : No : Off : Yes : Yes 5.1.2.5 2 STEP UNLOCK (A16, PROVISION) - Type : Low Side Drive - Max. Low Output Level : 1V to GND - Max. Output Current : 500mA - Fault Diagnostic Request : No - State During Reset : Off - Short Circuit Protection Request : Yes - Over Current Protection Req’d : Yes 5.1.2.
R&D / Automotive Electronics 5.1.3.1 TRUNK KEY CYLINDER UNLOCK SWITCH INPUT(A4) ■ Switch character - Type - Function - Open Resistance - Closed Resistance - Open to Close Time - Close to Open Time - Noise & GND Offset Margin 5.1.3.2 DRIVER KEY CYLINDER LOCK SWITCH INPUT(A6, PROVISION) ■ Switch character - Type - Function - Open Resistance - Closed Resistance - Open to Close Time - Close to Open Time - Noise & GND Offset Margin 5.1.3.
R&D / Automotive Electronics ■ Switch character - Type - Function - Open Resistance Closed Resistance Open to Close Time Close to Open Time Noise & GND. Offset Margin : Normally Close Switch to Battery : Switch Closed – HOOD Open Switch Open – HOOD Close : >2MKΩ : <50Ω : ≤ 5msec : ≤ 5msec : ±1V 5.1.3.
R&D / Automotive Electronics 5.1.3.7 IGNITION SWITCH INPUT (A15) ■ Switch character - Type : Normally Open Switch to Battery - Function : Switch Closed – IGNITION is ON Switch Open – IGNITION is OFF - Open Resistance : >2MΩ - Closed Resistance : <50Ω - Open to Close Time : ≤ 5msec - Close to Open Time : ≤ 5msec - Noise & GND. Offset Margin : ±1V 5.1.3.
R&D / Automotive Electronics 6. HORN 6.1.1 ELECTRIC SPECIFICATION Make FIAMM Frequency 415±20Hz(High) Rated voltage 12V Power consumption Max 3.5A(@12V) Pressure of sound 110±5dB(@13V,2m) Operation voltage range 10~14.5V 6.1.2 MECHANICAL CHARACTERISTICS No. 1 2 Item Test Condition Evaluation standard Stripped wires of lead wires are immersed in rosin for 5 90% min. stripped wires shall solder ability seconds and then immersed in solder bath of +230±5℃ be wet with solder.
R&D / Automotive Electronics The part shall be subjected to 5 thermal cycles. One current consumption should be cycle shall be consisted of : in ±20% compared with initial ones .The SPL(min.):100dB. +110℃ The tone should be normal 2 -40℃ thermal shock 1 hr 1hr Using 2 shuttle chambers with a 2 minutes minimum transition. storage 3 The part shall be subjected the uninterrupted storage schedule as below; -40℃:70hours +110℃:118hours The part shall be subjected to 5 cycles.
