DAVIS TECHNOLOGIES TC-3 Series Instructions Manual
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DAVIS TECHNOLOGIES TC-3 Series Instructions Manual

Traction control system
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  • Page 1 WWW.MORETRACTION.COM Traction Control System...
  • Page 2 COPYRIGHT NOTICE Copyright © 1999-2021 Davis Technologies, LLC. All rights reserved. Information in this document is subject to change without notice. Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders. Any components shown are for illustration or instructional purposes only.

  • Page 3: Table Of Contents

    Table of Contents Table of Contents ............2 Introduction ..............5 Remote Display .............. 6 Digital Ignition Controller ......... 7 How Does It Work?............8 Control Methods ............10 Timing Control ............10 SmartDrop® ............. 11 TC3 Options ..............12 Self-Learning Traction Control ......
  • Page 4 Firmware Updating ............42 Appendix A ..............43 Appendix B ..............44 Appendix C ..............47 Appendix D ..............49 Holley EFI Config ............ 49 FuelTech Config ............51 Analog Config ............52 Appendix E ..............53 Using Profiler Software for Data Log Download ...................
  • Page 5 THIS PAGE LEFT BLANK TC3 Series Traction Control www.moretraction.com...

  • Page 6: Introduction

    Introduction The TC3 Series of Traction Control is the most advanced and tunable system Davis Technologies has ever produced. With easy to use menus on the Remote LCD display or PC, adjustments are easy to make and very precise. As with all technical devices such as engines, shocks, carburetors, clutches etc., the product’s...

  • Page 7: Remote Display

    Remote Display The TC3 series can use a Remote Display (purchased separately) for the user to interface with the unit for setup and configuration. The Remote display can be used with many other Davis products such as the Profiler, PFEFI, Smart Relay, Digital Ignition Controller, and the VPS.

  • Page 8: Digital Ignition Controller

    Digital Ignition Controller The TC3 can also be used in conjunction with the Digital Ignition Controller from Davis Technologies to control the ignition of most any type of stand- alone ignition system. The user does not need an EFI system to use the TC3 for Traction Control. This can be useful for updating an older technology race car with some of today’s latest technology.

  • Page 9: How Does It Work

    How Does It Work? The Non-Self-Learning systems, like our TC-3, periodically compares the rate of acceleration of the driveshaft to an Adjustable Fixed Rate (AFR), known as Threshold. If the DS RPM rate of change is in excess of that Threshold, then a correction is made. The comparison is made every 1/32 of a turn of the driveshaft.
  • Page 10 In fact, Davis Technologies’ systems are at least 100 times faster than other systems which are integrated into the fuel injection or ignition system.

  • Page 11: Control Methods

    SmartDrop® control may also be implemented to add further power reduction to control the tire. When the TC3 is connected to a Davis Technologies Digital Ignition Controller, up to 30 degrees of timing and SmartDrop® may be used to control the tire.

  • Page 12: Smartdrop

    SmartDrop® SmartDrop® is used to make a stronger correction than timing retard. SmartDrop® is an intelligent method of dropping cylinder ignition without dropping the same cylinder multiple consecutive times. The cylinders are seen as A,B,C,D,E,F,G,H as opposed to the firing order. We do not know which cylinder is #1 cyl, but we do know if we have dropped C, then don’t drop C on the next revolution.

  • Page 13: Tc3 Options

    60’ to the shift, and so on. The number of zones is unlimited. The TC3-SL-Pro also includes a Run Curve to control timing after the launch. Contact Davis Technologies for more information on how to add the optional features. Example Screen Traction Control Traction...

  • Page 14: Self-Learning Traction Control

    The optional Self Learning control strategy can be installed at any time to a non-SL TC-3 online using the onboard USB port, after a license is purchased from Davis Technologies. Self-Learning TC is extremely useful for all type of racing, especially No-Prep, since there are few opportunities to get the system dialed in.

  • Page 15: Wheelie Control (Add-On Purchased Separately)

    0-5v. The much-preferred method of Wheelie Control is through the use of a Davis Technologies VPS, which measure vehicle pitch, not height. However, if you already have a ride height sensor, this option may be useful.

  • Page 16: Installation

    Installation Installation of the system is very simple. It is very important make connections correctly. Improper installation could result in poor system performance or damage to the system. Keep all wires away from any spark plug wires and coils or other sources of electrical noise and heat. The unit should be mounted away from any sources of electrical noise or high heat.

  • Page 17: Wiring

    Wiring As with all electronic devices, proper wiring techniques and methods will result in the best performance. Proper terminations, wire routing and overall quality of work are required for proper operation. You may want to refer to this document for some tips on basic wiring principles- https://moretraction.com/wp- content/uploads/2019/01/Wiring-How-To_Web.pdf.
  • Page 18 The harness is populated with the wires for the most common installation. All other wires are included and can be installed by the user, along with spare pins. A special tool is recommended for pin removal (Molex #63824-4600 CT15), however a .025” round pin may work.

  • Page 19: Pin Out

    Pin Out TC3 Series Traction Control www.moretraction.com...

  • Page 20: Schematics

    Schematics Digital Ignition Controller (DIC) TC-3 Series Install w/ DIC USING CAN Blue (pin 12)Optional launch out Red (pin 1) Ignition Switch Orange (pin 11) DS RPM Output Tan (pin 6) Arming Switch  Trans Brake and arm switch can...

  • Page 21: Msd Grid

    MSD Grid TC-3 Series Grid Install w/ DIC Blue (pin 12)Optional launch out Orange (pin 11) DS RPM Output  Trans Brake and arm switch can Red (pin 1) Ignition Switch optionally be connected to ground source  Tan (pin 6) Arming Switch...

  • Page 22: Holley Basic

    Holley Basic Basic Install Blue (pin 12)Optional launch out  Trans Brake and arm switch can Red (pin 1) Ignition Switch optionally be connected to ground source  Tan (pin 6) Arming Switch Pins 11, 13, 14 connect to Holley “F-type”...

  • Page 23: Holley Advanced

    Holley Advanced Advanced Install Blue (pin 12)Optional launch out  Ignition Power and Ground via Holley Outputs  Arm via Holley Output configure to 12 volt positive out above 75% throttle  Trans Brake signal via Holley Output configure internal channel to follow Trans Brake ...

  • Page 24: Fueltech

    FuelTech FT-600 Basic Install Blue (pin 12)Optional launch out  Trans Brake and arm switch can Red (pin 1) Ignition Switch optionally be connected to ground source  Tan (pin 6) Arming Switch Pins 11, 13, 14 connect to any White input, configure in FT manager ...

  • Page 25: Testing After Installation

    Testing After Installation After installation, it is recommended that you test all inputs and outputs before headed to the track. This can be achieved by a few different methods. The easiest is with a Remote Display. Using the Utilities Menu described later in this manual, you can test all inputs and outputs.

  • Page 26: Setup And Configuring

    Setup and Configuring The TC3 is configured using either a Remote Display or the Profiler Software on a PC. Let’s take a look at the display screens and how to configure the various settings and options. NOTE: ALL SETTINGS SHOWN ARE FOR EXAMPLE ONLY-INDIVIDUAL SETTINGS WILL VARY Remote Display Screens Buttons in Black are features that are not licensed.

  • Page 27: Home Screen

    Home Screen The Home screen gives quick access to some parameters and allows access to other Menus. TC3 Series Home Corrections SmartDrop Curve Chg Profile Utilities Main Run Curve is used to enable/disable the Run Timing Curve after TB release. (TC3-SL-Pro Only) Green=ENABLED, Red=DISABLED Curve Enable / Disable Run Curve...
  • Page 28 SmartDrop® is used to Enable/Disable the SmartDrop® cylinder cut feature. Green=ENABLED, Red=DISABLED SmartDrop Enable / Disable SmartDrop ENABLED (Default=DISABLED) DISABLED Save TC3 Series Traction Control www.moretraction.com...
  • Page 29 SL TC is used to Enable/Disable the Self Learning strategy if activated. Green=ENABLED, Red=DISABLED Enable / Disable Self Learning ENABLED (Default=ENABLED) TC3-SL and TC3-SL-Pro Only DISABLED Save Chg Profile is used to recall saved configurations from the SD card. Chg Profile PROFILE1 PROFILE2 PROFILE3...

  • Page 30: Utilities

    Utilities Press the Timing button to run a timing test. Once pressed the TC3 should cause a timing retard sweep up to the Max Retard set. Press the SmartDrop® button to test SmartDrop®. Once pressed the TC3 will drop cylinders up to the maximum set in the Max SmartDrop®...
  • Page 31 The About Screen provides info about current firmware and status. Serial: TC3SL-1-0-80200 Key: 608047328 (0) SD:CONFIRMED About Expires on: Owner:Speed Racer Last Updated: 12-30-21 10:07 EFI Module: 2020-11-19 Back Chg Profile is used to recall saved configurations from the SD card. Chg Profile PROFILE1 PROFILE2...

  • Page 32: Main Screen

    Main Screen The Main Screen accesses all the primary functions of the system. Most adjustments are made in these menus. Main Analog Traction Profiler Input Control Settings Back Profiler When features such as Self Learning (TC3-SL) or Run Curve (TC3-SL-Pro) are enabled, The Run Curve and SL TC buttons are active.
  • Page 33 Run Curve is used to enable/disable the Run Timing Curve after TB release. (TC3-SL-Pro Only) Green=ENABLED, Red=DISABLED Curve Enable / Disable Run Curve (Default=DISABLED) ENABLED TC3-SL_Pro Only DISABLED Save SL TC is used to Enable/Disable the Self Learning strategy if activated. Green=ENABLED, Red=DISABLED Enable / Disable Self Learning...

  • Page 34: Analog Input

    Analog Input This parameter is used to configure a retard as analog voltage increases on the analog input wire. This can be used as a wheelie control in conjunction with an optical ride height sensor or analog pitch sensor. The blacked-out buttons would be active if the Davis Technologies Wheel Control strategy were installed.

  • Page 35: Traction Control

    Traction Control This is the primary menu used to tune the traction control. These parameters can be adjusted using the Remote Display or optionally using the Profiler interface software on a PC (Settings>Traction Control, See Appendix Mode is used to set the overall sensitivity of the system.
  • Page 36 Spread controls the rate at which the system reaches the maximum correction allowed. Once a slip is detected, if the RPM reaches the top of the correction spread, then the correction will reach maximum. The correction is linear, so if the RPM spike only reaches 50% of the spread, then only 50% of the max correction will be allowed.
  • Page 37 Armed Only is used to set whether the arming switch input is required to allow corrections. If Enabled, the Arm switch must be on to allow corrections. If Disabled, the corrections will be made anytime slip is detected. An arming switch and Enabling this feature allows you to deactivate the TC if desired.
  • Page 38 SmartDrop® is used to make a stronger correction than timing retard. If a correction is active, and the RPM spike exceeds the Correction Spread Value, then SmartDrop® is initiated. If spread is set to 150, then at 151 RPM the first level of SmartDrop® will be triggered.
  • Page 39 Start RPM sets the RPM of the measured shaft below which the TC is not able to make a correction. This allows some cars to “Get Up On The Tire” before any corrections are allowed. Start RPM Measured Shaft RPM to Exceed Before Traction Control Is Active...

  • Page 40: Settings

    Settings The Settings screen is used to set a few system parameters, such as pulses per revolution being input and the CAN network settings. Settings RPM Pulses CAN Base CAN Bus Per Rev Address Frequency 1000 Back RPM Pulses Per Rev needs to be set to the number of pulses output per revolution of the measured shaft.
  • Page 41 The TC3 can transmit selected data via CAN Bus. When using multiple CAN Bus equipped products from Davis Technologies in a vehicle, the CAN Bus connections may simplify the installation. The CAN Bus can also share information with other systems in the vehicle, such as data or EFI systems.
  • Page 42 applications, a single resistor anywhere in the system provides stable communications. This resistor is built into some devices, such as the Davis Digital Ignition Controller, and most EFI systems. Simply tying into these devices network may provide sufficient signal control. If termination resistor is not available, lower speeds may be used with excellent results.

  • Page 43: Firmware Updating

    Firmware Updating Davis Technologies may release firmware updates or upgrades periodically to ensure the best possible functionality of the system. These are typically installed using the USB connector and the supplied USB cable. Instructions for this procedure will be included in the firmware update file located on the web site.
  • Page 44 Appendix A The TC3 data can be recorded on a RacePak via a V- Net module. RacePak part # 230-VM-5VDIFF can be used to record 1 channel. (approx. $160) RacePak part # 230-VM-USM can be used to record 4 channels. (approx. $300) RacePak®...
  • Page 45 Appendix B CAN Transmit Detail TC3 Series Traction Control www.moretraction.com...
  • Page 46 TC3 Series Traction Control www.moretraction.com...
  • Page 47 TC3 Series Traction Control www.moretraction.com...
  • Page 48 Appendix C The Profiler PC Software interface may be used to set some parameters of the TC3. The Systems options window can be used to set input polarity of the Arm and Trans Brake Sync Input, as well as Pulses Per Rev. TC3 Series Traction Control www.moretraction.com...
  • Page 49 The Traction Control window can be used to set most parameters of the TC system if desired. TC3 Series Traction Control www.moretraction.com...

  • Page 50: Holley Efi Config

    Appendix D Holley EFI Config When the TC3 is connected to a Holley EFI, you must install the Traction Control ICF using the Toolbox icon, and select “Profiler w/ SmartDrop®” This will create the required input Pins. Drag the Inputs to the desired “F” type (frequency) pin and connect the corresponding TC3 output to the appropriate pin.
  • Page 51 If desired, you may want to set up outputs from the Holley to trigger the ARM and Trans Sync Inputs. Configure the ARM output (TC3 Arm) to trigger at 80% throttle position, and the TB Sync output (TC3 Launch) to trigger whenever TB button is pressed. It is also very useful to set up a Data Monitor Window to test all inputs and outputs of the Holley EFI.

  • Page 52: Fueltech Config

    FuelTech Config When the TC3 is connected to a FuelTech EFI, you must setup 2 input pins using the Inputs dialog in the FT Manager software. Set one pin up as Davis Profiler Input and one as Davis SmartDrop® Input. Simply connect the corresponding TC3 output to the appropriate pins.

  • Page 53: Analog Config

    Analog Config The TC3 can also be used with an ignition system that has an Analog Input to control timing. This is common for Boost Control via a MAP sensor. If the Boost Retard feature is not being used, the TC3 can utilize this built in feature.

  • Page 54: Using Profiler Software For Data Log Download

    Appendix E Using Profiler Software for Data Log Download The TC3 can log the DSRPM and timing changes made during a run. When using the TC3-SL-Pro, this is also where you can set up the Zone specific parameters and Run Curve. Refer to the Help file in the PC Software on using the interface, which can be downloaded from the support...

  • Page 55: Disclaimer

    Davis Technologies LLC’s ("DAVIS") products and parts are to be inspected by the user before each use for evidence of damage, defect or wear. Any deviation by the user from the manufacturer's specifications concerning use, maintenance, repair, alterations, and modifications constitutes willful negligence.
  • Page 56 The damage of the user shall be deemed liquidated in the costs of replacement of the product or part. Davis Technologies LLC’s ("DAVIS") assumes no responsibility for errors, omissions, diagrams, pictures, illustrations or text in these instructions or the documents contained herewith.

  • Page 57: Notes

    Notes TC3 Series Traction Control www.moretraction.com...

  • Page 58: Notes

    Notes TC3 Series Traction Control www.moretraction.com...

  • Page 59: Contact Information

    Contact Information Technical support and sales may be reached at: Davis Technologies, LLC. PO Box 8250 Asheville, NC. 28814 (828) 645-1505 (828) 645-1525 fax email: support@moretraction.com web: www.MORETRACTION.com TC3 Series Traction Control www.moretraction.com...

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