MoTeC MDD User Manual Contents Introduction ........................................................................ 1 Display ................................................................................................................1 Mounting .............................................................................................................1 Firmware Version ................................................................................................2 ADL Operation....................
Copyright 2002-2003 – MoTeC Pty Ltd The information in this document is subject to change without notice. While every effort is taken to ensure correctness, no responsibility will be taken for the consequences of any inaccuracies or omissions in this manual.
MoTeC Introduction 1 Introduction The MoTeC MDD is a small satellite display for use with the MoTeC Advanced Dash Logger (ADL) or a MoTeC ECU. The MDD is small enough to mount on the vehicle steering wheel or it may be mounted in a more conventional position. When used with an ADL it is normally used with a “Blind” ADL (an ADL with no display). The MDD receives data from the ADL or M800 via CAN (Controller Area Network). It can also receive data from an M4, M48 or M8 ECU via a serial link.
2 Introduction Firmware Version The program inside the MDD is called “firmware”. The firmware determines the capabilities of the MDD. This document is current for firmware version V1.18 Updating the Firmware Version Over time newer firmware versions will be released that may have additional capabilities or display layouts. Updating the firmware requires special equipment.
MoTeC ADL Operation 3 ADL Operation This section describes using the MDD with a MoTeC ADL. ADL Version For compatibility with MDD V1.18, (or later) the ADL must be running version 3.00M or later firmware. Wiring The MDD communicates with the ADL via a CAN connection. See Appendix H: Wiring to ADL for wiring details. A correctly configured ADL will be automatically detected by the MDD when powered up. Display Layouts A number of different display layouts are available.
4 ADL Operation voltages between 8V and 15V. When full brightness is selected then the intensity will reduce when battery voltage is below 12V 1. Full ADL Display This layout allows the MDD to mimic all standard features present on the ADL display with the exception of the enunciator for the top numeric display. The ADL Race/Practice/Warm-up display modes can be used to configure 3 different layouts.
MoTeC ADL Operation 5
6 ADL Operation 2. Gain Loss Layout for ADL This display layout shows a ‘Lap Gain Loss’ bar graph at the top of the display and also includes the ADL left, right centre, and bottom displays. The Gain Loss bar graph is based on the ADL top numeric. The normal ADL bar graph is not shown The ADL Race/Practice/Warm-up display modes can be used to show different channels. Example Displayed Channels The channels displayed should be configured in the ADL Display setup.
MoTeC ADL Operation 7 Gain/Loss functionality The gain/loss bar-graph uses the data from the ADL Top Numeric. The bar-graph has 100 segments with 50 segment to the left of center and 50 segments to the right. Each segment represents one least significant digit of the value displayed in the ADL top numeric. For example if the Lap Gain Loss channel is displayed with two decimal places on the ADL top numeric then each segment will represent 0.01 seconds giving a maximum range of ±0.50 seconds.
8 ADL Operation 3. Large Numeric Layout for ADL This layout displays two values in a large font for maximum readability. It also displays the ADL bottom line. It does not show the ADL bar graph, centre numeric or top numeric. The ADL Race/Practice/Warm-up display modes can be used to show different channels.
MoTeC ADL Operation 9 4. Lap Display Layout for ADL The Lap Display layout shows Lap Time and Number and optionally, Predicted Lap Time or Lap Time Gain Loss. It also mimics the Bottom line of the standard ADL display. Note that this display layout is an older style layout that was designed for a special racing category. It is normally easier to use one of the other layouts. The normal ADL Race/Practice/Warm-up display modes can be used to show different channels.
10 ADL Operation Detailed Setup The following describes how the “Lap Display” layout treats the ADL display setup. Note that slightly different Layout and Labelling will be used depending on the setup as described below. MDD Gain / Loss Bar Graph If the ADL Right Numeric is visible and is in decimal format then the gain/loss bar graph will be displayed. The range is ± 0.40 sec if displaying a channel with resolution of 0.01 sec such as the “Lap Time Gain/ Loss” channel.
MoTeC ADL Operation 11 5. Vertical Bar Graph Layout for ADL This layout displays 8 channels of data into vertical bar graphs, scaled within a range set by the user. It is also possible to display two marker lines and values. This layout would typically be used to display 8 Exhaust Gas Temperatures, but can be configured to display other channel values. The layout is not based on the ADL display setup, and so will not change when the ADL display mode changes.
12 ADL Operation The second template contains the channels to be sent. While these can be configured by the user, included with Dash Manager is a template that contains 8 Exhaust Gas Temperature channels. For this option, choose a second (blank) CAN tab and select the comms template ‘MDD Transmit (8 x EGT)’ If different channels are to be displayed, first select the EGT template then change the EGT channels to the required channels.
MoTeC ADL Operation 13 6. Horizontal Bar Graph Layout for ADL This layout displays 8 channels of data into horizontal bar graphs, scaled within a range set by the user. It is also possible to display two markers lines and values. This layout would typically be used to display 8 Exhaust Gas Temperatures, but can be configured to display other channel values. The layout is not based on the ADL display setup, and so will not change when the ADL display mode changes.
14 ADL Operation The second template contains the channels to be sent. While these can be configured by the user, included with Dash Manager is a template that contains 8 Exhaust Gas Temperature channels. For this option, choose a second (blank) CAN tab and select the comms template ‘MDD Transmit (8 x EGT)’ If different channels are to be displayed, first select the EGT template then change the EGT channels to the required channels.
MoTeC M800 Operation 15 M800 Operation This section describes how to use the MDD with a MoTeC M800 ECU. The MDD is capable of receiving and displaying data transmitted from a MoTeC M800 ECU via a CAN bus. A correctly configured M800 will be automatically detected when the MDD is powered up. There are two modes of operation “User” and “Tuning”, each mode has a number of display layouts as described later in this section.
16 M800 Operation When a particular layout has been displayed for at least 60 seconds (without a button press) the current layout selection is stored in the MDD. When the MDD is next powered up it will then display this layout. User Mode Layouts for M800 The M800 user mode layout displays four fixed parameters (Gear, RPM, Engine Temperature and Ground Speed) in the top section of the screen.
MoTeC M800 Operation Oil Pressure (kPa) Fuel Pressure (kPa) Air Temperature (°C) Manifold Pressure (kPa) Throttle Position (%) Efficiency Point Oil Temperature (°C) Fuel Temperature (°C) 17
18 M800 Operation Fuel Used Lambda Note: If Lambda2 is non-zero and Lambda1 is zero, Lambda2 will be shown. In all other cases Lambda1 will be shown.
MoTeC M800 Operation 19 Tuning Mode Layouts for M800 The M800 tuning mode has nine different screen layouts, shown below in the order they occur: RPM Throttle Position (%) Efficiency Point Lambda Note: If Lambda2 is non-zero and Lambda1 is zero, Lambda2 will be shown. In all other cases Lambda1 will be shown.
20 M800 Operation RPM Lambda1 Throttle Position (%) Lambda2 Manifold Pressure (kPa) Lambda1 Short Term Trim Mass Air Flow Lambda2 Short Term Trim Engine Temp (°C) Battery Voltage Oil Pressure (kPa) Left Ground Spd / Digital Input 1 speed Oil Temperature (°C) Right Ground Spd / Air Temperature (°C) Digital Input 2 speed Exhaust Temperature Left Drive Spd / (°C) Digital Input 3 speed Right Drive Spd / Digital Input 4 speed Fuel Injector Duty Cycle (%) Aux Output 1 Duty Cycle (%) Fuel Cut level (%
MoTeC M800 Operation 21 Active M800 diagnostics are displayed using the same abbreviations as ECU manager diagnostics screen. A maximum of 14 diagnostics can be displayed at any time. Active M800 Status flags are displayed using the same abbreviations as ECU manager status screen. A maximum of 14 status flags can be displayed at any time.
MoTeC M4/48 Operation 23 M4/M48 Operation This section describes how to use the MDD with a MoTeC M4 or M48 ECU. The MDD is capable of receiving and displaying data transmitted from a MoTeC M4 or M48 ECU via a serial link. A correctly configured M4/48 will be automatically detected when the MDD is powered up. There are two modes of operation “User” and “Tuning”, each mode has a number of fixed display layouts as described later in this section.
24 M4/48 Operation When a particular layout has been displayed for at least 60 seconds (without a button press) the current layout is stored in the MDD. When the MDD is next powered up it will display this layout. Temperature Units Selection The M4/M48 always transmits engine temperature (ET) and air temperature (AT) in units of degrees Celsius. The MDD may be configured to convert and display ET and AT in degrees Fahrenheit.
MoTeC M4/48 Operation 25 User Mode Layouts for M4/M48 The M4/M48 user mode layout displays four fixed parameters (Gear, RPM, Engine Temperature and Ground Speed) in the top section of the screen. The bottom line of the screen can display one of seven different layouts (selected with the button), or a lap time override if a BR2 is present and lap beacon has been passed (see BR2 Operation section).
26 M4/48 Operation Auxiliary Temperature Air Temperature (°C) Manifold Pressure (kPa) Throttle Position (%) Efficiency Point Fuel Used Lambda
MoTeC M4/48 Operation 27 Tuning Mode Layouts for M4/M48 The M4/M48 tuning mode has seven different screen layouts, shown below in the order they occur: RPM Throttle Position Efficiency Point Lambda Engine Temperature (°C) Air Temperature (°C) Auxiliary Voltage Auxiliary Temperature RPM Throttle Position (%) Manifold Pressure (kPa) Air Temperature (°C) Lambda Lambda Short Term Trim Engine Temperature (°C) Digital Input 1 speed Battery Voltage
28 M4/48 Operation Fuel Injector Duty Cycle (%) Aux Output 1 Duty Cycle (%) Fuel Cut level (%) Aux Output 2 Duty Cycle (%) Ignition Cut level (%) Fuel Actual Pulse Width (mS) Fuel Used Aux Output 3 Duty Cycle (%) Aux Output 4 Duty Cycle (%) A maximum of 14 active M4/M48 diagnostics can be displayed at any time. A maximum of 14 active M4/M48 status flags can be displayed at any time.
MoTeC M8 Operation 29 M8 Operation This section describes how to use the MDD with a MoTeC M8 ECU. The MDD is capable of receiving and displaying data transmitted from a MoTeC M8 ECU via a serial link. There are two modes of operation “User” and “Tuning”, each mode has a number of fixed display layouts as described latter in this section. A momentary action switch wired to the MDD is used to move between the display modes and layouts. M8 Version For compatibility with MDD V1.
30 M8 Operation When a particular layout has been displayed for at least 60 seconds (without a button press) the current layout selection is stored in the MDD. When the MDD is next powered up it will then display this layout. User Mode Layouts The M8 user mode layout displays four fixed parameters (Gear, RPM, Engine Temperature and Ground Speed) in the top section of the screen.
MoTeC BR2 Operation (with ECU) 31 BR2 Operation (with ECU) The MDD is capable of displaying lap time information when connected to a BR2 via CAN. The MDD will display lap time as an override on the bottom line of the display for 25 seconds when a valid beacon signal is received by the BR2 Configuration The BR2 functionality is present when the MDD is connected to an ECU (M800, M4/M48 or M8).
32 BR2 Operation (with ECU) is lost. A BR2 power cycle switch would provide a simple method to reset fastest lap before a session. BR2 Beacon Diagnostics If an invalid beacon (i.e. Not the beacon configured in the BR2 to generate lap times) is passed twice without passing a valid beacon, then the BR2 fault message is displayed, as shown below: Note that this condition only applies for the first invalid beacon found after a valid beacon or after power up.
MoTeC BR2 Operation Standalone) 33 BR2 Operation (Standalone) This BR2 functionality is normally used when the MDD is only connected to a BR2. To use this functionality when an M800 or ADL is present on the same CAN bus as the MDD and BR2, the M800 and/or ADL must be configured so that they do not communicate with the MDD. Configuration The BR2 must be configured (using the BR2 Configuration program) for a CAN Connection, and must have ‘Advanced Configuration’ enabled.
34 Appendices Appendices Appendix A: Specifications Electrical Operating Voltage Range: 6.5V to 15V Reverse polarity protected Operating Current: at normal brightness: 85mA Typical (8V to 14V) at full brightness: 150mA Typical at 14V Environmental Operating Temperature Range: -10°C to 70°C Internal (65°C Ambient Typical) Weight: 120grams (0.26 lb) Approx. Dimensions (W x H x D): 85.8 x 59.5 x 21.9 mm (3.38 x 2.34 x 0.86 in) Communications CAN Interface 1 Mbit/sec Serial 9600 baud, Logic Level.
MoTeC Appendices 35 Appendix B: MDD Diagnostics Warning Message CAN Wiring No CAN data CAN WARNING Bad CAN data NO RS232 DATA WAITING FOR DEVICE DATA BUTTON STUCK CHECK WIRING TEMPERATURE UNITS CHANGED Description A CAN error is detected Check that CAN Hi and Lo wires are not swapped, and that the CAN bus is correctly terminated No CAN messages have been received for two seconds from an ADL or M800.
36 Appendices Appendix C: Special Enunciator Strings The ADL layouts on the MDD can display the following special enunciator strings, as configured from Dash Manager.
MoTeC Appendices 37 Appendix D: General CAN Bus Wiring The CAN bus should consist of a twisted pair trunk with 100R (0.25Watt) terminating resistors at each end of the trunk. The preferred cable for the trunk is 100R Data Cable but twisted 22# Tefzel is usually OK. The maximum length of the bus is 16m (50ft) including the MoTeC CAN Cable (PC to CAN Bus Communications Cable) CAN Devices (such a MoTeC ADL, BR2 etc) may be connected to the trunk with up to 500mm (20in) of twisted wire.
38 Appendices Appendix E: Wiring to M4 / M48 ECU The diagram below shows how to connect the MDD to an M4 or M48. Note: Splice MDD Power and Ground close to ECU M4 / M48 25 BAT11 Tx 1 BAT+ BATNote 1 BAT+ Display Mode Button MDD BATRX BAT+ CAN-LO CAN-HI 1 2 3 4 5 6 Note1: M4 (Pre M4e) and all M48 will require splicing with the 9pin PC communications connection M4/48 and BR2 The diagram below includes a BR2 Lap Beacon receiver For detail on CAN Bus wiring refer to Appendix D: General CAN Bus Wiring.
MoTeC Appendices 39 Appendix F: Wiring to M8 ECU The diagrams below show how to connect the MDD to the M8.
40 Appendices Appendix G: Wiring to M800 ECU The wiring below shows how to connect the MDD to the M800. For detail on CAN Bus wiring refer to Appendix D: General CAN Bus Wiring.
MoTeC Appendices 41 Appendix H: Wiring to ADL The wiring below shows how to connect the MDD to the ADL. For more detail on the CAN Bus wiring refer to Appendix D: General CAN Bus Wiring.
42 Appendices Appendix I: MDD Connector & Wire Colours Mating Connector Deutsch: RM68056C Wire Wire to suit connector: 22# Tefzel, Mil Spec: M22759/16-22 Wire Colours There are two versions of wire colours released: Pin Version 1 Version 2 Function 1 Black Black Bat - 2 Brown Blue Data/mode button 3 Red Red Bat + 4 Orange Green CAN Lo 5 Yellow White CAN Hi
MoTeC Appendices Appendix J: Case Dimensions 43
MoTeC Notes 45
46 Notes
