kdFi V13 English 2 - BS
Contents
1. u m e I Sa wS uuu u uq a 9 6 STARTUP 11 10 6 1 LIGHT EMITTING DIODES ccccccccssssssseecceeecssenceeeccceseessueeecececssesssseeecececesssauseeeeecesesssaeeeeceseeenes 10 6 2 FR 10 6 3 a 11 6 4 THROTTLE POTENTIOMETER cccsessssccecceecesssseeeecccescesseeeeeccecssessaaeeesceeecessaseeeececeeesssaseeeceseeenes 11 6 5 kuu 11 6 6 DIGITAL INPUT iu ulus hs 11 6 7 BAROMETRIC CORRECTION 12 6 8 TACHO OUTPUT 12 6 9 IDLE SPEED CONTROLLER E EA E EREA TNE 12 610 unan s unan nalan hila aa ni ea ear a A aE Ea aan ES SE ERRE 12 GTL INECMON eip e Ska E EE u 12 6 12 e 13 6 13 lt BOOST CONTROL idani EKO EE noobs REO E AoE EESE ES A PEE a ESE FEER 13 6 14 uu asun e e a e 13 6 15 oeeaaeaii E E EE a ESE ERa 13 7 FIRMWARE UPDATES E qu qayasqa 13 8 NOTES 14 2 of 14 Car Electronic Systems 1 Introduction Congratulation for buying the kdFi V1 3 The circuit of the kdFi based on Megasquirt2. GG Car Electronic Systems kdFi V1 3 User Manual You will find the latest information documentation and CD images on www k data org 1 of 14 1 INTRODUCTION 3 2 INCLUDED IN DELIVERY lt an aiana AAAA A ARRARAS AARNA SARSAR 3 3 3 3 1 USB 3 3 JAW 4 CONNECTION dieu sssvedvcadivasuesvsvsasescevdibcisseaivesdivasbesdeesivesdeeddueasne s 4 1 CABLE IPES Seem 4 4 2 USB CONNECTION L S ua S uu m ASS 4 4 3 SCHEMATIC 4 4 4 ASSIGNMENT 5 4 5 TES TEINS SS S t n a sa Ses 6 5 SOLDER JUMPERS Nana NANEN NAANA EANES NAAK 7 5 1 FIDDLE 7 5 2 8 5 3 RPM Su 8 5 4 S S u aaa sa 8 5 5 TAW uum Sas 9 5 6 9 5 7 IGN A TGIN DO uuu u lasa 9 5 8 2
3. output parallel to cylinder 4 wasted spark IGN_GND IGN Ground ignition ground separately 5 of 14 A A Car Electronic Systems Software outputs JS0 PT6 IAC1 Relay Output Output JS11 JS1 JS2 2 Boost Control PWM Output JS3 JS4 Constant Barometric Correction JS5 PA0 Knock Input JS6 CAN High JS7 Digital Input Launch Control VE Table Switch JS8 CAN Low JS10 Tacho Output JS11 Spark Output D Relay Output D14 Spark Output A D15 Spark Output B D16 Spark Output C 45 Testpins Pin assignment 36 o USB P1 Relay Output 34 USB P2 INJ2 32 USB P3 INJ2 30 USB GND INJ1 28 GND INJ1 26 GND 511 24 GND FDL2 22 GND JS2 20 GND 12V 18 GND FDL3A 16 GND TPS 5V 14 GND FDL3Z 12 P6 RPM IN 10 JS7 OXY 8 JS5 TPS 6 JS10 CLT 44 RESET 9S12C64 AR 2 B BKGD 9S12C64 6 of 14 E s Car Electronic Systems 5 Solder jumpers The solder jumpers are used for the permanent selection of certain engine parameters like the speed measurement mode the number of ignition coils the type of idle controller the activation of the JAW controller etc 5 1 F IDLE 2 pin idle controller Function The controller opens a supplementary air supply parallel to
4. the throttle valve s as long as the output FDL2 is connected to ground When the kdFi doesn t connect the output to ground any more the spring integrated in the idle controller stops the air supply again That is the reason for this output to be very fast pulsed PWM in order to hold a certain position with the corresponding pulse width 3 pin idle controller Function The same as for the 2 pin idle controller but without spring The CLOSE command is also controlled by a magnetic coil The idle controller opens when FDL3A Fast Idle 3 pin OPEN switches to ground and closes when FDL3Z Fast Idle 3 pin CLOSE is activated 7 of 14 E s Car Electronic Systems 52 RPM IN The type of speed measurement is selected by the solder jumper RPM_IN When using a VR sensor the factory settings can be retained unchanged When using hall sensor the connection has to be changed as shown the pictures below VR Sensor Standard Hall Sensor 5 3 RPM_OUT This one has to be selected according to PM_IN See pictures 5 2 5 4 OPTO_GND Connection to ground of the hall sensor if needed is the same as for MS V3 Connection 290 C186 OPTO_GNO 8 of 14 Car Electronic Systems 5 5 JAW The option JAW has to be activated if the JAW wideband controller is intended to be used This establishes a connection between the JAW output V2 and the input OXY and transmits the analog wideb
5. MS2 V3 0 was enhanced for the firmware MS2extra and provided with additional circuits in order to enable simple adaptation to a great number of engine types A Wideband Lambda Controller JAW is also arranged on the PCB The Bosch LSU 4 2 Lambda Sonde and the JAW Micro processor have to be bought as accessories to use their functions In addition the serial inputs were replaced by a USB connection for ease of use 2 Included in delivery kdFi V1 3 device ready for use Software CD USB cable User manual 3 Software It is recommended installing the software from the starting menu of the CD before connecting the kdFi for the first time 31 USB You will find the USB driver of the company on the CD in the directory USB It is the FTDI2232 Chip 3 2 Megatune The Megatune installation files can be found on the CD directory Megatune We recommend installing the BETA Software as this runs very smoothly and has got large advantages compared to the Release If you want to use the Release version you have to perform a firmware update using the corresponding version During installation the engine parameters are sampled The best is to enter the future settings immediately for this simplifies considerably the start up operation afterwards When using JAW we recommend selecting the innovative LC 1 as wideband sensor and adjusting afterwards the characteristic of the LC 1 in the software JAW Deploy The two s
6. and signal directly For this you will need the accessories JAW uC and Bosch LSU 4 2 If you select this option any external lambda signal must not be connected to the OXY input 5 6 RO activates the output JS11 as Relay Output For this you have to connect the coil of a relay to 12V ignition the second contact of the coil to JS11 The function of this output is now adjustable via Megatune Extended Output Port Settings 57 IGN_A IGN_D The jumper IGN_A is used for triggering the ignition output A IGN_B to IGN_D are responsible for the ignition signals B to D accordingly Software settings Megatune Basic Setup Tacho input Ignition Settings Examples Engine with mechanical distributor Only IGN_A 1 cylinder engine Only IGN_A 2 cylinder in line engine with wasted spark with 2 power drivers 4 cylinder in line engine with wasted spark with 2 power drivers each 6 cylinder in line engine with wasted spark with 2 power drivers each 8 cylinder V engine with wasted spark IGN_A IGN_B IGN_C IGN_D with 2 power drivers each max equipment 5 8 SJ201 4204 Halving the series resistance of the ignition groups If only one power driver is used per ignition output the series resistance for the power driver can be halved In operation however it turned out to be useful to always set a jumper in order to reduce the susceptibility to failu
7. controller has to be selected on the back side by the solder jumper F IDLE see 5 1 Pins of the idle speed control 2 pin 12V and FDL2 3 pin 12V and FDL3A open and FDL3Z closed 6 10 Ignition The ignition coil can be activated directly by the power drivers integrated in the kdFi V1 3 We recommend using a shielded multi conductor cable for connection The kdFi can be extended to up to 8 power drivers enabling direct activation of 8 ignition coils according to the wasted spark principle Alternatively ignition modules such as EDIS or Bosch can be used as well Therefore the triggering signal can be tapped from the solder jumper IGN_A to IGN_D 6 11 Injection There are two outputs INJ1 INJ2 for injection groups The additional ground connection between the outputs should be connected to ground with low resistance with large conductor cross section in order to avoid potential shifts on the PCB The injection valves are supplied with 12V via the ignition the ground wires of the valves are activated via the control unit Attention The setting whether the injection valves are of high or of low resistance has to be entered in Megatune Basic Settings Injector Characteristics in any case prior to the first test run False settings can cause destruction of the injection valves or of the kdFi 12 of 14 Car Electronic Systems 6 12 Relay Output See 5 6 R0 6 13 Boost control The boost pressure is con
8. f the power driver as well as of the ignition coils 13 of 14 s A Car Electronic Systems _ 8 Notes 14 of 14
9. n the PCB Circuit points GND Ground available in multiple number FP A Fuel pump FDL2 A Idle speed controller 2 pin clocked ground connection FDL3Z A Idle speed controller 3 pin CLOSED FDL3A A Idle speed controller 3 pin OPEN 5V GND A Power supply 5V throttle potentiometer TPS E Throttle potentiometer signal OXY E Lambda sensor signal CLT GND E Water temperature sensor AIR GND E Air temperature sensor JS2 A Boost pressure control waste gate JS5 E Knock sensor JS7 E Digital input JS10 A Tacho output signal for the tachometer JS11 A Relay output R0 12V E Input voltage 12V GR JAW Bosch LSU 4 2 GREY WS JAW Bosch LSU 4 2 WHITE GE JAW Bosch LSU 4 2 YELLOW SW JAW Bosch LSU 4 2 BLACK GN JAW Bosch LSU 4 2 GREEN RT JAW Bosch LSU 4 2 RED v1 JAW Analog output V1 v2 JAW Analog output V2 INJ1 INJ Injection valves group 1 GND INJ Ground injection groups ground separately INJ2 INJ Injection valves group 2 1 Ignition output cylinder 1 A2 IGN Ignition output parallel to cylinder 1 wasted spark 1 IGN Ignition output cylinder 2 B2 IGN Ignition output parallel to cylinder 2 wasted spark C1 IGN Ignition output cylinder C2 IGN Ignition output parallel to cylinder wasted spark D1 IGN Ignition output cylinder 4 D2 IGN Ignition
10. one via Megatune Tools Calibrate 6 5 Knock Input You can employ usual knock sensors preferentially original engine sensors The knock frequency can be regulated via the potentiometer R88 For controlling or multiplying the setting the control voltage relating to the adjusted knock frequency is measured at the connector JP1 The red LED D30 is used as calibration assistance It signalises that an identified knock is transmitted to the processor input 6 6 Digital Input There is a digital input that can be used both for changing the engine characteristics and as Launch Control The corresponding function has to be defined in Megatune Specify JS7 as input 11 of 14 Car Electronic Systems 6 7 Barometric Correction For using the constant barometric correction there must be a second absolute pressure transmitter MP X4250 at the back side that is not installed ex works The option Barometric Correction has to be activated in Megatune Basic Settings General Lags and adjusted in Extended Barometric Correction Choose JS4 as input 6 8 Output The output Tacho Output is provided for standard tachometers It can be activated in Megatune Extended Tacho Output Choose IGN JS20 as Output 6 9 Idle speed controller The kdFi V1 3 supports the 2 pin as well as the 3 pin idle speed controller The pin type of the idle
11. re 9 of 14 El Car Electronic Systems 6 Start up Attention The kdFi V1 3 is protected by self resetting thermal fuse Polifuse It is reset by switching off the power supply AND by cooling down at the same time Take care that the TO220 housings of the power elements don t all have the same potential and so need to be isolated from the heatsink by i e mica washer and plastic stopper Operation of the kdFi without heatsink will cause total damage of the power elements 6 1 Light emitting diodes Description Function RS232 A TxD Data packet from USB to MS2 RS232 A RxD Data packet from MS2 to USB RS232 B TxD Data packet from USB to JAW RS232 B RxD Data packet from JAW to USB D15 Depending on software Standard Firing pulse D16 Depending on software Standard Cold advance D17 Depending on software Standard Acceleration Knock Knock identified 6 2 RPM Input 1 VR sensor The measurement via VR sensor is the most widespread way in Europe for car engines An AC voltage is induced in the coil of the VR sensor by a metal wheel with 60 2 or 36 1 cogs The voltage threshold has to be set by the potentiometer R55 and the hysteresis by the potentiometer R54 These potentiometers don t have any mechanical end stop The end can be recognized by a light repetitive click at every rotation In case of doubt you may make 30 counter clockwise rotations and then the poten
12. tiometer is sure to be in zero position 2 HALL sensor 3 Ignition coil signal For Fuel only versions where the existing ignition control should be retained the speed signal is directly gripped at the primary side 12V of the ignition coil Attention Never connect a measuring line to the high voltage side of the ignition coil This will cause the complete destruction of the kdFi and can produce life threatening situations 10 of 14 Car Electronic Systems 6 3 Sensors The factory settings of kdFi are adapted to Bosch sensors If desired this can be changed by exchanging the two wired resistors R4 and 7 on the PCB Sensor Manufacturer Series resistance AC Delco GM Daewoo Buick Cadillac Chevrolet Oldsmobile Pontiac GMC 2 49k Ford Ford Lincoln Mercury 27k Bosch and Nippon Acura Audi BMW Honda Infiniti Jaguar Kia Lexus Mazda Denso Mitsubishi Nissan Suzuki Toyota Volkswagen Volvo 96 up 2 2k Standard Mopar Chrysler Dodge Plymouth 9 31k 6 4 Throttle potentiometer The throttle potentiometer is connected up by a 3 wire cable 5V and GND are connected to the outer static pins of the potentiometer The voltage relating to the throttle position is tapped via the sliding contact and connected to the input TPS Throttle Position Sensor The covered distance of the potentiometer can be longer than the rotation of the throttle axle The corresponding calibration is d
13. trolled by means of a fast acting valve at the Waste Gate In MSextra this part of the software is described as EXPERIMENTAL use with care For further information please refer to actual details on the internet 6 14 JAW Just Another Wideband from Alan To www 14point7 com The JAW circuit was integrated in the kdFi V1 3 for obtaining a space saving advantageous solution By retrofitting the socketed Jaw processor a wideband lambda controller is available at once Its analog output V2 can be connected to the OXY input of the kdFi by the solder jumper JAW on the back side of the PCB JAW can be activated and configured by the JAW Deploy software and the second serial port installed after the connection of the kdFi 6 15 CAN Bus Like for the Megasquirt 2 the CAN Bus is prepared concerning the hardware but has to be programmed by the user if desired For further information on this item please read the respective Megasquirt MSextra websides on the internet 7 Firmware updates As usual for MSextra the firmware updates are performed without setting a boot jumper You have to start the program Download Firmware from the Megasquirt folder of your Windows starting menu and to select the same COM port as in Megatune Megatune has to be closed during the firmware updates to avoid access troubles Disconnect the ignition coils in any case during the firmware update otherwise this could cause destruction o
14. ystems are freely adjustable that means you can in principle use any characteristic as long as it is the same in both systems MS und JAW 3 3 JAW You can find the JAW Deploy installation files on the CD directory JAW 3 of 14 A A Car Electronic Systems 4 Connection 41 Cable types Recommended cable types Ignition min 1 5 mm Injection min 1 5 mm VR sensor 0 5 shield Sensors min 0 5 shield Others min 0 75 mm 4 2 USB connection The USB component is compatible to USB 1 1 as well as to USB 2 0 You can use each standard mini USB cable for connecting cable Due to the integrated USB connection two serial interfaces are available They are displayed at the device manager of Windows The MS2 processor is connected to the first COM Port the JAW to the second one ATTENTION The COM Ports should not exceed because this could produce communication trouble with Megatune In this case you have to delete unused invisible ports incl the kdFi Ports from your configuration and to re install the driver 43 Schematic RS232 Air Temp MS2 Water Temp 9S12C64 USB VR input CAN Tacho Output Digital Input Fast Idle Knock Input Boost Control Ignition C D 4 of 14 A A Car Electronic Systems 44 Assignment The programmable kdFi inputs outputs are already connected to the corresponding additional circuits o
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