Motec MDC User Manual

MDC Mitsubishi Diff Controller User Manual  Copyright – MoTeC Pty Ltd – 2001-2007 The information in this document is su

MoTeC MDC 8 Setup If a cell in the braking table is left blank, the corresponding cell value from the Acceleration table is used. Cell values shoul

MoTeC MDC 9 Setup Magnetic Levels If magnetic wheel speed sensors are used, the sensor thresholds must be specified in the magnetic levels table. T

MoTeC MDC 10 Setup Speed Axis Up to 11 values can be specified for the speed axis that is used in all of the user mode Braking and Acceleration tab

MoTeC MDC 11 Appendices MDC Installation The factory AYC / ACD ecu is attached with two bolts to the side of the centre console underneath the dash

MoTeC MDC 12 Appendices Appendices Appendix A – Fault Codes The MDC fault flags included in the CAN diagnostics are sent as a bit field (16 bit) wi

MoTeC MDC 13 Appendices Appendix B – MDC Pinout and Links MDC Connector Pinout Plug C38 Plug C37 2 15 3 16 4 17 5 18 1 14 6 19 7 20 8 21 9 22 10

MoTeC MDC 14 Appendices Links The only user changeable link is the CAN TERM link on the component side of the MDC circuit board. This link may be s

MoTeC MDC 15 Appendices Appendix C – CAN Wiring Practices The CAN bus should consist of a twisted pair trunk with 100R (0.25Watt) terminating resis

MoTeC MDC 16 Appendices Appendix D – ECU Communications The MDC can communicate with the MoTeC EVO89 or EVO48 OEM ECU using existing factory wirin

MoTeC MDC 17 Appendices

Contents Introduction...1 MDC Functionality ...

MoTeC MDC 18 Appendices Receiving ECU Data If ECU/MDC communications has been enabled, the MDC receives ECU Efficiency point from the ECU. The ECU

MoTeC MDC 19 Appendices Appendix E – CAN Messages The MDC communicates on a User CAN bus running at 1Mbit/s. MDC operational data messages are each

MoTeC MDC 20 Appendices CAN ID 0x1F4 Byte Bits Data 4..7 Compound Id = 4 0 0..4 1 Front Right Wheel Speed (0.1 km/h resolution) 2 3 Front Lef

MoTeC MDC 1 Introduction Introduction The MoTeC Mitsubishi Diff Controller (MDC) is a direct replacement for the Active Centre Diff (ACD) controlle

MoTeC MDC 2 Functionality MDC Functionality Mode selection There are six user selectable control modes, four of which are user configurable. The co

MoTeC MDC 3 Functionality The lock percentage for the constant lock mode is determined according to the following strategy: Handbrake ON OFF 0% Lo

MoTeC MDC 4 Functionality Speed Measurement The four wheel speed sensors are either directly connected to the MDC, or via the ABS module (if fitted

MoTeC MDC 5 Functionality Note: if the MDC is powered up with the steering at full lock it will read +/-360deg when the wheels are straight. This i

MoTeC MDC 6 Functionality The ECU sends the calculated engine efficiency point (based on manifold pressure, throttle position, mass flow, etc) to t

MoTeC MDC 7 Setup MDC Manager The MDC Manager software is necessary to configure an MDC unit from a PC. A new MDC unit must be configured before it