User Manual (English) - k
Contents
1. 1 Ore 1 SV3 9 of 12 Con Pin Signalname Description Power In Ground Power In Ground 12 ______ ower In 12V 5 NEN ot Connected 5 Out for sensors and circuits 12 Out sensors and circuits 9 LSU DIAHD Lambda Sensor Heat PWM LSU DIAHD Lambda Sensor Heat PWM 12 LSU Lambda Sensor Heat 12 LSU 11v aja XD RSzs2itefaceioCJi25 e os 0 0 5 EX BARO BRO I z amp MAP AnalgsgnaiMAP Typ Application I O Type Main GND GND 12V Igniotion on 12V Igniotion on nc LSU 4 2 grau LSU 4 2 grau LSU 4 2 LSU 4 2 LSU 4 2 schwarz LSU 4 2 gelb LSU 4 2 rot nc nc TIL TTL TTL TTL TTL GND SV1 25 0 5V Lambdasensor 1 0 5V Lambdasensor 2 0 5V Barometric Sensor 0 5V Map Sensor 0 5V Throttle Position 0 5V Airtemp Sensor Resistor Coolant Sensor Resistor nc nc switched GND O switched GND nc nc O switched GND Con Pin Signalname Description a 5 5 7 10 of 12 Typ Applicati2. A E A Electronic Systems kd Fi V1 4 R10 As from 24 July 2013 User Manual English You will find the latest information documentation and CD images on www k data org 1 12 CEN A A Car Electronic Systems _ P d Index 1 INTRODUCTION 2 INCLUDED IN DELIVERY 3 SOFTWARE 3 1 USB DRIVER 3 2 TUNERSTUDIO 4 CONNECTION 4 1 CABLE TYPES 4 2 FUSES 4 3 USB PORT 4 4 ASSIGNMENT OF THE ADDITIONAL TERMINALS 5 COMMISSIONING 5 1 LED 5 2 SPEED MEASUREMENT 5 3 SENSORS 5 4 THROTTLE POTENTIOMETER 5 5 DIGITAL INPUT 5 6 TABLE SWITCH 5 7 BAROMETRIC CORRECTION 5 8 TACHO OUTPUT 5 9 IDLE SPEED CONTROLLER 5 10 IGNITION 5 11 INJECTION 5 12 RELAIS OUTPUT BOOST PRESSURE CONTROL 5 13 CAN BUS 6 BASIC PCB 7 WIDEBAND LAMBDA CONTROLLER 8 FIRMWARE UPDATES 9 NOTES 2 of 12 1 Introduction Congratulation for buying the kdFi V1 4 The circuit of the kdFi bases on Megasquirt MS2 V3 0 It was refined for the firmware MS2extra and provided with additional circuits in order to enable easy adaptation to a great number of engine types A Wideband Lambda Controller breitband lambda de is also arranged on the PCB A Bosch LSU 4 2 Lambda Sonde can be connected directly without the need to buy a further controller In addition for ease of use the serial inputs were replaced by an USB port galvanically isolated from the PC 2 Included in Delivery kdFi V1 4
3. Lambda Controller www breitbandlambda de The integrated lambda controller is activated by switching the input GP2 to ground This can be done continuously with a bridge as the kdFi is only energized as long as the ignition is turned on The measurement signal is output to OXY out in form of a 0 5V signal and corresponds to the PLX signal 0 5V AFR10 AFR20 This characteristic is stored in Tunerstudio and has already been loaded during the test of the control device After a firmware update this characteristic but must be selected again 8 Firmware Updates Firmware updates are always performed at your own risk It may happen that the existing firmware is deleted by disconnections or incompatible computers software and it can only be reloaded via a BDM interface We offer this service but it is not covered by warranty Tunerstudio must be closed during the firmware update to prevent access conflicts The ignition coils must be disconnected during the firmware update until the appropriate configuration has been reloaded via MSQ file 12 of 12
4. 8 Ground Injector Con Pin Signalname Description Typ Application I O Type 5 4 1 MCU RX RS232 Interface to MC9S12C64 SV4 6 28 DD RS232 Interface to MC9S12C64 SV4 5 CAN BUS Interface to MC9S12C64 nc CAN BUS Interface to MC9S12C64 nc RS232 Interface to FT232R Optocoubler SV4 2 RS232 Interface to FT232R Optocoubler SV4 1 6 SV4 BUS USB USB Interface USB red Sv4 8 GND USB USB Interface USB black SV4 9 pP USB USB Interface USB green SV4 DM USB USB Interface USB white 11 of 12 Con Pin Signalname Description Typ Application I O Type nc nc nc 4ECS 5 Z nc nc 2 3 C5 C5 C5 n ne ne nc PI Bus Engine Controller 1 nc PI Bus Engine Controller 2 nc PI Bus Engine Controller 2 nc PI Bus Engine Controller 2 nc PI Bus Engine Controller 2 nc 405 Bus Engine Controller 3 nc 5 nc nc M 5 7 n n 1 1 1 n PKD EC3 PI Bus Engine Controller 3 nc CU PA 3 ignal MCU PA 3 nc MCU PA 4 ignal MCU PA 4 nc 7 7 7 MCU PA 5 ignal MCU PA 5 nc MCU PB 4 ignal MCU PB 4 nc 7 16 17 18 19 20 21 2 2 5 Signal MCU_PB 5 nc 23 MCU_PB 6 Signal MCU PB 6 nc nc nc nc nc nc nc nc nc nc nc nc nc nc nc nc nc nc 7 Wideband
5. device ready for use Software CD PVC housing incl plug 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 Driver You will find the USB driver of the FTDI Company on the CD in the directory USB It is the FTDI2232 Chip 3 2 Tunerstudio For tuning we recommend using the software Tunerstudio available on the Internet under Tunerstudio com You will find the corresponding manual on the website of the manufacturer 4 Connection The like all other voltage supplied parts must be preceded by a fuse The amperage rating of the fuse must not exceed the maximum allowable amperage of the cable 4 1 Cable Types Recommended cable types Ignition min 1 5 mm Injection min 1 5 mm VR sensor min 0 5 mm shielded Sensors min 0 5 mm Others min 0 75 3 of 12 4 2 Fuses We recommend using a 5A fuse for protecting the kdFi V1 4 The kdFi is internally equipped with a 5A slow blow fuse which can only be replaced by SMD soldering and doesn t even protect the Lambda Controller Therefore avoid tripping this fuse 4 3 USB Port Galvanically Isolated Since there were occasional disconnects of the USB connection on the previous model kdFi V1 3 due to potential differences and other electrical disturbances the USB port of the V1 4 has been galvanically isolated Another difference is that th
6. e part electrically connected to the PC is USB powered This fact simplifies the optimization of the start up behaviour significantly because when you restart the ignition the PC mustn t download the USB driver each time anew The USB chip is of course downwards compatible which means it can be used both with USB 3 0 2 0 and 1 1 Each standard USB cable can be used as connection cable 4 4 Assignment The programmable inputs outputs of the kdFi are already connected with the corresponding extension circuitry on the PCB Connections Pin Function E A Funcion S O A1 ignition output 1 2 Bi IGN Ignition output cylinder2 3 IGN lgnitionouputcyinder3 __ 0 O 6 B2 IGN ignition output parallel to 2 8 02 IGN ignition output parallel to 4 9 GND IGN Ground ignition please ground separatel 4 ot 12 A ANA A A Car Electronic Systems 13 12V E Input voltage 12V 14 GND GND 0 2 CAM Rotation speed measurement camshaft Connector internal SV1 9 gt lt 4811 IAC1 Tacho Output signal for rev counter OXY2 Lambda sensor signal bank 2 Digital Input N N 55 1 PS 5 2 OXY GND Groundlambdasensorsignal LSU SW BoschLSU42 BLACK LSU GE BoschLSU4 2 YELLOW LSU GR w gt 0 TT TTE
7. ing an auto adaptation to the different sensors is integrated in the kdFi V1 4 In this way the potentiometers don t need to be adjusted any more 2 HALL sensor With different Hall sensors you possibly need a resistor of 1 to 10 ohm between signal and 5 5 3 Sensors The factory settings of kdFi are adapted to Bosch sensors A separate software calibration of the sensors is possible via software 6 ot 12 5 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 may be longer than the rotation of the throttle axle The corresponding calibration is done via Tools Calibrate TPS 5 5 Digital Input There is a digital input that can be used for example as Launch Control The corresponding function has to be defined in Megatune Specify JS7 as input 5 6 Table Switch Via the input TBL a second set of parameters can be activated in the controller With a switch setting the input to ground you can switch between two stored ignition and injection maps This is useful for various tunings such as road racing petrol gas petrol E85 etc Connecting to a higher voltage than 5V will damage the processor of the kdFi Digital inputs must
8. lled in parallel to the first four and in the version with housing they are not routed to the external pins The additional ground connection GND should be connected to ground with low impedance high conductor cross section to prevent potential shifts on the PCB The injection valves are supplied with 12 V via the ignition and the ground wires of the valves activated via the control unit Attention The setting whether the injection valves are of high or of low resistance has to be entered in Basic Settings Injector Characteristics strictly before the first test run because false settings can cause destruction of the injection valves or of the kdFi Starting values no guarantee High impedance PWM Current Limit 96 100 PWM Time Threshold ms 25 5 Low impedance PWM Current Limit 96 30 PWM Time Threshold ms 1 5 5 12 Relais Output Boost Pressure Control A relay output is available under IAC2 which can switch 2 ampere but is also suitable for PWM signal e g boost pressure control 5 13 CAN Bus Like for the Megasquirt 2 the CAN Bus is equipped concerning the hardware but has to be programmed accordingly by the user if desired For further information on this item please read the respective Megasquirt MSextra websites on the internet 8 of 12 6 Basic PCB Dimensions Assigl 60 55
9. on Type SV24 SV2 3 GND Hall Sensor SV2 8 SV2 7 VR Hall Sensor VR Hall Sensor Con Pin Signalname Description Typ Application I O Type EE ignition GatelGBT en Collector IGBT ion B1 deste IGBT Collector IGBT Gate Collector IGBT Gate Collector IGBT GND GND Gate IGBT Collector IGBT Gate IGBT Collector IGBT Gate IGBT Collector IGBT Gate IGBT Collector IGBT GND GND Gate IGBT E IGBT Ignition aee feet Eg pie GBT I Collector IGBT GND Sv3 30RSN2 Curent Resistor Sense Negative GND SV3 nc nc 33 NJ 1 0 njctr Ground Injector 34 N 2 njctr2 Ground Injector 35JNJ3 Ground Injector 36INJ4 Ground Injector 37 N 5 0 mjctr5 Ground Injector SV3 6 Ground Injector 3o NJ 7 Injector 7 Ground Injector Sv3 40 N 8 injector
10. only be connected to ground 5 7 Barometric Correction For using the constant barometric correction there must be a second absolute pressure transmitter MPX4250 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 54 as input The sensor can be mounted directly on the solder pads of the PCB next to the MAP sensor 5 8 Tacho Output The output Tacho Output is provided for standard tachometers It can be activated in the software Extended Tacho Output Choose IAC1 as Output on 5 9 Idle Speed Controller The kdFi V1 4 supports both the 2 pin and the 3 pin idle speed controller Pin connections of the idle speed control 2 pin 12V and FDLO 3 pin 12V and FDLO open and FDLC closed 7 ot 12 5 10 Ignition The ignition coil can be activated directly by the power drivers integrated in the kdFi V1 4 We recommend using a shielded multi conductor cable for connection The kdFi is equipped with 12 power drivers enabling direct activation of 12 ignition coils according to the wasted spark principle Alternatively to up to 6 ignition coils can be activated according to the Coil on Plug principle 5 11 Injection There are 8 outputs INJ1 8 for injection valves the first four outputs can be controlled individually Outputs 5 8 are contro
11. z UJ GND RPM GND speed sensor VR sensor connected to Minus or GND UJ B BoschLSU42 WHITE LSU GN BoschLSU4 2 GREEN F2 E ___ ET GND Throttle potentiometerGround TPS TPS Throttle potentiometer Position Signal j m N Ignition output parallel to cylinder 6 GN_ Ignition output parallel to cylinder 5 Ignition output cylinder 6 m m 2 4 2 o TPS Throttle potentiometer 5V Power Suppl E Table Switch 48 A Connector internal SV1 10 EZE The blue coloured entries have been changed compared to the previous version V1 3 5 of 12 5 Commissioning 5 1 Light Emitting Diodes Connection error Power supply OK Data packet from USB to MS2 Data packet from MS2 to USB Ignition pulse A Ignition pulse B Ignition pulse C Ignition pulse D Ignition pulse E Ignition pulse F Wideband controller error Wideband controller LED on Stand by Wideband controller LED flashing slowly operation Wideband controller LED flashing fast Heat sensor The LEDs LD5 to LD10 may also have other functions according to the software They depend on the customer s settings 5 2 Speed Measurement 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 A specialised component perform
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