Table of Contents
Advertisement
Quick Links
DYNertia3 user manual
Manual version 8.1 (≥ V3.3.0)
DISCLAIMER: This software and hardware is provided "as is" without warranty of any kind, either express or implied, including, without limitation, any warranty of merchantability and fitness for a
particular purpose. In no event shall the creators of this software be liable for any direct, special, incidental or consequential damages arising out of the use or inability to use the software. The creators
and distributors of this software shall not be liable for any loss, damages or costs, arising out of, but not limited to, lost profits or revenue, loss of use of the software, loss of data or equipment, the costs
of recovering software, data or equipment or claims by third parties, damage to equipment, or other similar costs.
For continuous product improvement and due to ongoing development, we reserve the right to alter specifications without notice.
WARNING: This hardware and software is protected by law and international treaties. Unauthorized reproduction or distribution of DYNertia3, or any portion of it, may result in severe civil and criminal
penalties and will be prosecuted to the maximum extent possible under law.
DYNertia3 software is copyright- Ross Mclean 2017
DYNertia3 hardware & firmware is copyright- Darren Todd 2017
www.dtec.net.au
1
Advertisement
Table of Contents
Troubleshooting
Related Manuals for dtec DYNertia3
Summary of Contents for dtec DYNertia3
- Page 1 For continuous product improvement and due to ongoing development, we reserve the right to alter specifications without notice. WARNING: This hardware and software is protected by law and international treaties. Unauthorized reproduction or distribution of DYNertia3, or any portion of it, may result in severe civil and criminal penalties and will be prosecuted to the maximum extent possible under law.
- Page 2 It is much easier to study without the noise of a screaming engine! All examples in this manual use ‘Metric’ units such as kph/Kw/Nm etc. DYNertia3 can be set in the software to ‘Imperial’ if you prefer mph/Hp/Ft Lb etc!
-
Page 3: Table Of Contents
Load Control Options (EC and PC units)- ..................... 15 Chapter 2: Hardware Installation ....................... 16 Hardware Mounting .............................. 17 Mounting the DYNertia3 Sensor and Magnet ....................17 Alternate Sensors to the supplied one ......................18 Mounting the Electronic Control Unit ......................19 Hardware Wiring .............................. - Page 4 All Outputs (DYNertia3 and accessories) ....................37 Auxiliary Outputs (DYNertia3) ........................37 File Storage Paths (Icon) ..........................38 Set DYNertia3 base file storage path ...................... 38 User Details (Icon) ............................38 Set User Details ............................38 Archive Storage Paths (Icon) ......................... 39 Set DYNertia3 archive storage path ......................
- Page 5 Summary of your RPM options ........................49 General RPM input information ........................49 Chapter 6: Overview- 2 Main Windows ..................... 50 Two Main DYNertia3 Windows (DYNO / GRAPH) ....................51 DYNO Window ..............................52 Record Settings ............................... 52 Minimum Run RPM ............................ 52 Maximum Run RPM ...........................
- Page 6 DYNertia3 user manual DYNertia3 file Explorer ........................... 66 Creating / Deleting folders for tests ......................68 Reviewing Audio Files ............................ 69 Secondary GRAPH Window ..........................70 Viewing Files (‘GRAPH’ Window) ........................71 Adjusting Graph appearance ......................... 71 Zooming ................................71 Clear Graph Trims ............................
- Page 7 Using a DTec ‘RPM adapter’ for the RPM adapter input ................109 Basic connections for a DTec ‘RPM adapter’ to DYNertia3’s RPM Adapter input ......... 110 Connections for a DTec ‘RPM adapter’ to suit spark plug wire sensing ..........110 Connections for a DTec ‘RPM adapter’...
- Page 8 DYNertia3 user manual Brake ‘Closed Loop’ PID Tuning ........................133 Load control system commissioning ......................133 Load Unit- Current Limitation ........................ 133 Load Control Output ..........................133 Throttle Servo Speed ..........................133 Sudden RPM/Speed Drop Warning ....................... 134 PID Test Settings ............................. 134 Setup procedure ............................
- Page 9 DYNertia3 user manual How often should I run DYNO losses correction? ..................152 Observing effect of Losses Correction ....................... 153 Chapter 18: Maths Channels ........................154 Concept ................................155 Sample expressions, simple ........................157 Testing an expression ..........................157 Variables in detail ............................157 Creating and saving a math’s expression ....................
-
Page 10: Chapter 1: Introduction
Chapter 1: Introduction Chapter 1: Introduction Overview and features! www.dtec.net.au... -
Page 11: Introduction
Brake type Dyno’s use an absorber system (Hydraulic, Friction, Eddy Current etc) to load the engine and the resultant Torque is measured by a ‘Load Cell’. In ‘Brake’ mode DYNertia3 uses this Torque input and RPM to calculate Power. The DYNertia3 software package handles all of the functions required for Dyno control: configuration, saving Runs, correcting for atmospheric conditions, filtering, displaying data, printing, overlaying and analyzing multiple Runs. -
Page 12: Features
Suitable for chassis and engine dyno designs, either direct or indirect drive to the inertia flywheel. Power measurement can also be taken from a ‘load cell’ for use on brake style dynos (e.g. water, eddy current, hydraulic, friction). DYNertia3 does not control the actual load on a brake style dyno, the load must be controlled manually (i.e. it’s not closed loop). -
Page 13: Data Acquisition
The input channels are fully scalable, even for non-linear sensors. Many sensor choices are already pre-calibrated and DYNertia3 software doesn't just display the input voltage measured, a table for each input allows it to be calibrated and displayed in any units you choose (eg Lambda, air/fuel ratio, degrees, PSI etc). -
Page 14: File Management
Volt output to power auxiliary sensors is also present if required. An additional digital channel is provided if you wish to have engine RPM directly measured (via a Hall sensor or DTec’s ‘RPM adapter’). This option can help reveal tyre slip/growth on a chassis dyno or centrifugal clutch engagement RPM. -
Page 15: Load Control Options (Ec And Pc Units)
For controlling a brake type dyno in ‘closed loop’ mode we have available additional modules that connect into the DYNertia3 unit. There is an Eddy current power supply unit that provides the high voltage DC required by the eddy brake (retarder) and also available is a unit with PWM output for alternative dyno types. -
Page 16: Chapter 2: Hardware Installation
Chapter 2: Hardware Installation Chapter 2: Hardware Installation Hardware mounting Alternate sensor options Basic power wiring (see ‘Inputs- Using’ chapter for full details) ‘Linking’ hardware to the software www.dtec.net.au... -
Page 17: Hardware Mounting
NOTE: The rotation sensor system is the main RPM input used by DYNertia3 for Power calculation and therefore must always be setup for operation. If you choose to also use the engine ignition system (or other source) as a secondary RPM input then please read the chapter on ‘RPM Input Options’... -
Page 18: Alternate Sensors To The Supplied One
Alternate Sensors to the supplied one DYNertia3 can accept other types of sensors if you prefer. The sensor input terminal is a digital input; it will not accept voltage from an inductive sensor (VR). The ‘signal’ terminal of DYNertia3 needs to be ‘pulled’ to ground when a target object is detected. -
Page 19: Mounting The Electronic Control Unit
PC’s. It is very important to apply the following mounting and cable routing suggestions to avoid any problems! It is very important to keep the PC, DYNertia3 and it’s cabling well away from large sources such as ignition systems- (‘every inch counts’!) Mount the sensor unit at the furthest distance from the engine as possible. -
Page 20: Hardware Wiring
Power supply can be from a simple 12VDC battery, 7 to 18VDC required. DYNertia3 typically draws less than 50mA so very little demand is put on a battery e.g. a cordless drill or bike battery is ideal!. -
Page 21: Example Of Typical Wiring (Additional Devices Shown)
Brake dyno ‘quick start guide’ and in the chapter ‘Load Controller’ in this manual.. NOTE: In this diagram if the AFR meter was reversed it would damage the DYNertia3 unit. Make sure the meter is not accidently connected incorrectly to the battery or to the DYNertia3 unit ! -
Page 22: Linking' Hardware To Pc
‘Linked’. Once ‘Linked’ DYNertia3 will automatically find the hardware in future when it is connected, powered and the software is started. If you plug DYNertia3 or Load Controller hardware into another USB port you may need to re-link. -
Page 23: Chapter 3: 'Brake' Style Dyno Setup
Inertia style Dyno! The following basic information regarding brake type dyno’s is relevant for an ‘open loop’ or ‘closed loop’ dyno system. You must also refer to the chapter ‘Load Controller’ for specific details on brake dyno setup, regardless of type. www.dtec.net.au... -
Page 24: Brake (Absorber) Style Dyno Setup
See www.DTec.net.au website ‘downloads’ for information (‘Brake Chassis Design Tool’ or ‘Brake Engine Design Tool’) The DYNertia3 controller senses the speed of the brakes rotating shaft and outputs this data, along with the load cell information to the PC for analysis and storage. -
Page 25: Variations
Note: Basic DYNertia3 system alone does not control the actual brake/retarder load, this must be manually controlled. It has ‘open loop’ functionality i.e. you cannot enter an RPM and have DYNertia3 vary the load to maintain that RPM automatically. For ‘closed loop’ control you need the optional ‘Load Controller’ hardware unit. For closed loop control of your load please see web site for information on the ‘Load controller’... -
Page 26: Chapter 4: 'Setup' Menu Options
Chapter 4: ‘Setup’ Menu Options Chapter 4: ‘Setup’ Menu Options Hardware setup Software setup Communications setup Sensor setup Losses setup Main Graph Appearance setup Configuration reset www.dtec.net.au... -
Page 27: Hardware- Setup Menu
Mass RPM Limit: You can apply an RPM limit alarm to your system if you wish i.e. if there is a maximum safe limit you wish for your mass/flywheel not to exceed. If DYNertia3 detects an over speed condition it will give very obvious alerts to the danger and force an end to your test session. -
Page 28: Sensor/Mass Ratio
RPM and speed (which is derived from the main flywheel/roller speed sensor). RPM Adapter input for Engine RPM: If you have a suitable input adapter (such as DTec’s ‘RPM Adapter’) or sensor connected to DYNertia3’s RPM Adapter input then you can choose to have this engine RPM value used for various functions rather than just the calculated RPM (which is derived from the main flywheel/roller speed sensor). -
Page 29: Brake Inertia Correction (Only In 'Brake' Mode)
If you select this option, and have the Inertia value correctly entered, then DYNertia3 will basically operate as both Inertia and brake dyno simultaneously i.e. it will calculate the power used to accelerate the mass as well as derive the power from the load cell. -
Page 30: Hardware Connections
Chapter 4: ‘Setup’ Menu Options Hardware- Setup Menu (cont.) Hardware Connections: An overview of terminal designations on the DYNertia3 hardware. Handy if your decals are not visible. Circumference Calculator: Tool to help calculate your rollers circumference if you do not already know it. -
Page 31: Software- Setup Menu
“Inactive’ appear before you close down the ‘’Software Setup’ menu. If password is forgotten DTec will need to be contacted to allow program access, so don’t’ lose password!!! Note: Lambda / AFR Preferred Lambda/AFR Channel: Set to input channel your AFR meter is connected to, saves re-selecting in later analysis Windows. -
Page 32: Graph
Chapter 4: ‘Setup’ Menu Options Software- Setup Menu (cont.) Graph Auto Display of Last Run: When selected, DYNertia3 will automatically open the Graph Window and add the test Run just performed to the set of traces so you can view it immediately. -
Page 33: Display
‘backdrop’ when DYNertia3 is running. This can be used for applications were the PC screen size/resolution cannot be set to exclude the background. DYNertia3 is a fixed sized Window and cannot be enlarged (‘maximised’) to fill the whole screen, set the screen Note: resolution for best appearance. -
Page 34: System
“Weather Corrections” for details. Run D3 Snapshot: This is only used for trouble shooting. It generates a package for DTec support; it allows us to view your settings and other data that will help us reproduce any faults you may have. It is much easier/quicker than trying to... -
Page 35: General
Chapter 4: ‘Setup’ Menu Options Software- Setup Menu (cont.) General Metric / Imperial: Selects the units used by DYNertia3, kph/Kw/Nm/ºC to mph/Hp/Ft Lb/ ºF etc. Mixed units are not presently available (exception is the large Run summary screen below!). Media (Audio): Enables an audio input via the PC’s microphone. This can be used to simply save a commentary during a test or to record the actual engine noise. -
Page 36: Point By Point (Brake Mode)
When you press “Stop Run” button (or F12) a graph trace will be created from your saved data points and this can be viewed like any other test Run trace. Each time the data is saved a counter will display this in the ‘Record Settings’ status field www.dtec.net.au... -
Page 37: Ratios
DYNertia3 power is removed. Auxiliary Outputs (DYNertia3): The ‘User’ auxiliary output can be set to turn on at each Run, the “OUT” icon on GRAPH and DYNO Windows turns a green colour to reflect active output operation. -
Page 38: File Storage Paths (Icon)
File Storage Paths (Icon) Set DYNertia3 base file storage path: By default DYNertia3 creates a certain structure of where it stores your test Runs and other saved data. Under ‘C’ drive is created a main folder (Base path) that other folders are stored under. -
Page 39: Archive Storage Paths (Icon)
This screen allows you to select a time period, in days, that will automatically save the files from one location to another location DYNertia3 will scan all files in the selected root folder and any subfolders underneath it for relevant files. Saved run files and any files you have created (many Windows allow you to save information to a file) -
Page 40: Communications- Setup Menu
DYNertia3 rather than manually entering from a third party weather station. Update Interval: Sets how often the weather data is imported into DYNertia3 to update the correction values. See chapter “Weather Corrections” for full details on ‘Weather Watch’ weather station. -
Page 41: Load Controller
These settings all relate to the optional ‘Load Controller’ unit. This is used for closed loop load control (Eddy current retarders directly or PWM controlled devices) and for servo based throttle motor control. Note: All Load control options are an additional component to DYNertia3, they are not standard. Please see our website www.dtec.net.au for full details of these options. -
Page 42: Printer
Set if the main graph is to have a grid displayed as background behind the graph traces. Operator Allows entry of the operators name, this can be transferred with the comments (see “Setup Software” chapter) and will also appear on the printouts. www.dtec.net.au... -
Page 43: Chapter 5: Rpm Input Options
Chapter 5: RPM Input Options Chapter 5: RPM Input Options Why engine RPM may be required Screens used to configure RPM Options for obtaining Engine RPM www.dtec.net.au... -
Page 44: Engine Rpm, Purpose And Options
RPM only as viewing the RPM may be required in the setup process! ‘Record Settings’ field will be referred to in some RPM options as the “Current Ratio” must be appropriately set for any RPM option chosen. Visible on the main ‘DYNO’ Window. www.dtec.net.au... -
Page 45: Rpm Input Options (7 Available!)
Option 1- No RPM used- You can select DYNertia3 to run in ‘Speed’ mode (Kph/Mph instead of RPM as an axis), this requires no engine RPM input but the Torque shown will be at the roller (Power shown is at engine though). This is for very quick testing on a chassis dyno as it requires no setup at all. - Page 46 Option 5- Manual RPM to Speed Entry- If DYNertia3 knows the speed the vehicle does at a certain engine RPM then on a chassis dyno it can then calculate engine RPM from the dyno speed (as measured by its sensor).
-
Page 47: Rpm Adapter Input
RPM Adapter input Using the ‘RPM Adapter’ input with DYNertia3 opens up other options for RPM input as it directly measures engine RPM. If engine has no tacho fitted, but you have an ‘RPM Adapter’ you can use it to automatically ‘teach’ a ratio. This uses the RPM adapter as a temporary tacho only (‘Option 6’... - Page 48 RPM (not the RPM Adapter). You can even disconnect adapter form the engine, which now also removes a potential source of interference into DYNertia3. Option 7- Alternative RPM Source- This uses the optional ‘RPM Adapter’ (or ‘OBDII’ scanner) input source as the sole engine RPM source for all functions (gauge displays, graph scales, min/max record settings and correcting shaft/roller torque readings to the engine).
-
Page 49: Summary Of Your Rpm Options
# Option 1,3,4,5,6,7 can be used. Option 1 is easiest (no RPM scale though), 3 is fast (but assumes constant test gear). DYNertia3 can be ‘taught’ the relationship (ratio) of dyno roller to engine, up to 8 gears can be learnt and later selected in the ‘Record Settings’... -
Page 50: Chapter 6: Overview- 2 Main Windows
Chapter 6: Overview- 2 Main Windows Chapter 6: Overview- 2 Main Windows 2 Main Windows of DYNertia3 Features visible on the ‘DYNO’ & ‘GRAPH’ Windows Scaling the Gauges and Charts during testing (‘runtime’) www.dtec.net.au... -
Page 51: Two Main Dynertia3 Windows (Dyno / Graph)
Two Main DYNertia3 Windows (DYNO / GRAPH) Press the “DYNO” / “GRAPH” button to change between the 2 main Windows of DYNertia3. The ‘DYNO’ Window is used to select and create files, enter the weather details, record vehicle test data, ‘teach’ gear ratios, view RPM/speed and control the testing. -
Page 52: Dyno Window
‘surging’ against the dyno flywheel load as you prepare to accelerate (inertia dyno). If you have DYNertia3 set to end a test when negative power is detected then a low setting may also cause a test to end early, this could occur if you decelerate accidentally at low RPM whilst getting ready to accelerate for a test. -
Page 53: Mode
‘Inertia’ mode. Status: Displays if “Recording” DYNertia3 is gathering data from a Run, “Ready” when waiting for a Run, “Gauges” if ‘Gauges on’ or “Calibrate” if ‘Speed to RPM’ button are pressed (this indicates that the tacho/speedo dial gauge is... -
Page 54: Run Control
DYNO Window (cont.) Run Control Start Run Button: Starts and stops DYNertia3 recording data from a test Run. This can also be done by using a ‘page turner’ or the shortcut keys allocated to this (menu ‘Setup/Software’). During a run the indicator lamp labelled “RUNNING” will flash repeatedly. -
Page 55: Correction Factors
“Setup/Hardware”. If Brake type is selected and the symbol is green then the optional closed loop ‘Load Controller’ is connected and communicating, refer to www.dtec.net.au for purchase and further details. ‘RPM Source’ indicator shows if the RPM source is from the ‘RPM adapter’ (spark plug icon) or speed sensor (roller icon) as set in the menu “Setup/Hardware”. -
Page 56: Dial Gauge Displays
This function is used for ‘steady state’ tunning when using a load cell, monitoring engines whilst testing or for setting up an engine to confirm that DYNertia3 is receiving accurate data and that all settings are correct, especially the gear ratio settings (i.e. -
Page 57: Graph Window
Chapter 6: Overview- 2 Main Windows GRAPH Window Tool Bar Button Functions Exit: Saves and exits DYNertia3. Print: Opens the printing menu, same as the menu option “File/Print”. RPM/Speed Mode: Switches the dyno from displaying RPM as the graph X-axis to speed, also alters the RPM/Speed dial gauge. -
Page 58: Graph Controls
The “Comments” button in lower Right corner opens the recorded notes that can be viewed and edited for the selected trace, chosen using the ‘Trace Select’ buttons in lower LH corner of the GRAPH screen. www.dtec.net.au... -
Page 59: Data Displays
The data value box’s transparency (activated from its menu) level can be adjusted in the menu option “Setup/Software/Display” so that it does not obscure the view behind it. The box can be freely dragged by its border to any screen position (‘click and drag’ the box’s edge). www.dtec.net.au... -
Page 60: Run Time Gauges/Charts (Visible Only From 'Dyno' Window)
The Torque and Power settings are only visible when in ‘Brake mode’ as this is the only mode ‘real time’ Note: Power/Torque gauges operate in during a run. Tip- Clicking on the gauges dials will also open up this ‘Scales’ menu option. www.dtec.net.au... -
Page 61: Chapter 7: Weather Corrections
Chapter 7: Weather Corrections Chapter 7: Weather Corrections Weather corrections ‘Weather Watch’ weather station Viewing weather data www.dtec.net.au... -
Page 62: Correction Factors
An optional accessory USB device called ‘Weather Watch’ is available that automatically interfaces with DYNertia3 and updates the readings at regular intervals. Refer to this manual under ‘Menu options- “Setup/Communications” for details on connecting (known as ‘Linking’). -
Page 63: Viewing Weather Data
Viewing Weather Data Allows the viewing of the weather data from the optional DTec ‘Weather Watch’ automatic weather station. Ensure it is connected and configured to a PC USB port via “Setup/Communication”. -
Page 64: Chapter 8: Loading/Viewing Files
Chapter 8: Loading / Viewing Files Chapter 8: Loading/Viewing Files Loading files into the Graph Window ‘File Explorer’ Window Secondary Graph Window Basic Viewing of files on Graph Window www.dtec.net.au... -
Page 65: Loading Of Files Into 'Graph' Window
To load a new trace into the graph for viewing or to change an existing one ‘Click’ on a trace number (button numbered “3” in this example above), this will open our ‘DYNertia3 File Explorer’ screen where we can select a run to be shown as trace ‘3’. -
Page 66: Dynertia3 File Explorer
Chapter 8: Loading / Viewing Files DYNertia3 file Explorer In ‘DYNertia3 File Explorer’ you can pick a directory Folder of choice and when each file is selected (one Left ‘Click’) its data table, general notes, key data and preview graph are shown. - Page 67 Runs into, then press the ‘File Storage’ icon (top Left) and it will become the default file path for saving new files into and will open whenever DYNertia3 File Explorer is opened. Trace Information: Shows all of the information relating to the highlighted test Run.
-
Page 68: Creating / Deleting Folders For Tests
You can create, delete, move and alter file names in ‘Windows Explorer’ just as with any Windows program. Changing file names and locations whilst in use or selected will cause DYNertia3 to obviously produce error messages (it can’t find them any more). You will need to re-select your files of choice from their new location. Do not rename the actual ‘default’... -
Page 69: Reviewing Audio Files
If the ‘Media‘ option in the menu choice “Setup/Software/General” is enabled then there will be audio files (.wav) visible along with the normal ‘run’ files (.DYN3) in ‘DYNertia3 File Explorer’ (assuming you have some audio tracks recorded). Recording audio files is done by pressing the ‘Mic Input’ button on the ‘Graph’ or ‘Dyno’ screen (turns microphone on/off) to record during the duration of the run. -
Page 70: Secondary Graph Window
It is loaded with files the same way the main screen is, via a ‘Click’ on a trace number (numbered buttons beside each coloured band). All controls and menu functions are the same as the main Graph screen so will not be covered here. www.dtec.net.au... -
Page 71: Viewing Files ('Graph' Window)
Tip- ‘The export functions found under the ‘File’ menu also give you the freedom to export to Microsoft’s ‘Excel’, this opens up infinite possibilities to graph and analyse the data as required. www.dtec.net.au... -
Page 72: Chapter 9: Trim, Merge & Join Runs
Chapter 9: Trim, Merge & Join runs Chapter 9: Trim, Merge & Join Runs Trim- change start and end points Merge- create an average of 2 runs Join- merge data points into a single trace www.dtec.net.au... -
Page 73: Trim A Run
Press the “Trim” button and you will be prompted to name the file and choose a location to save. Tip- For fast setting of the RPM points use the “+1000” buttons, this will increment the adjustments by 1000 RPM at a time. www.dtec.net.au... -
Page 74: Merge Runs
A merged Run will be based on up to 4 visible traces (2, 3, or 4). It is required that trace set “1” be loaded and visible as this is used as the ‘master’ when DYNertia3 generates the new data (any of your recorded comments will copy from this to the new file). -
Page 75: Join Runs
A ‘joined’ Run will be based on up to 4 visible traces (2, 3, or 4). It is required that trace set “1” be loaded and visible as this is used as the ‘master’ when DYNertia3 generates the new data (any of your recorded comments will copy from this to the new file). -
Page 76: Chapter 10: Test Notes- Add/Save
Chapter 10: Test Notes- Add/Save Chapter 10: Test Notes- Add/Save Adding notes to tests Save/attach notes to other test files www.dtec.net.au... -
Page 77: Adding Test Notes
You can lock any file to protect it from accidental change in the menu option “View/File Explorer” (‘key’ icon). If a chosen file is already locked when selected, the “Start Run” button changes to “Locked” (image of a set of keys). www.dtec.net.au... -
Page 78: Templates
Without this each new test has all its comments cleared. Note: Does not apply to the operator and company name, these are pulled in from the user details. www.dtec.net.au... -
Page 79: Chapter 11: Printing & Exporting
Chapter 11: Printing & Exporting Chapter 11: Printing & Exporting Printing screens Adding comments to print Exporting data www.dtec.net.au... -
Page 80: Printing
Offset Correction: A trial print on A4 should be done first, If not aligned properly then this button will allow for the image to be shifted on the page when printed; most printers have a positioning error to some extent. When aligning, the image will not alter its position on the screen, only on the actual page printed. www.dtec.net.au... -
Page 81: Printing Main Graph Screens
Print: Button will print the pages. Select Page: Multiple pages are available for printing, a graph page that gets its image from the main Graph Window, summary page and detailed information pages that shows key data from the selected traces on the graph. www.dtec.net.au... -
Page 82: Customising Your Printout
In some screens this button will open a general comments form that will generate notes that can be placed on the actual graph, see “Notes To Print” section for details. www.dtec.net.au... -
Page 83: Notes To Print
Choosing this menu option will open the Window below. Type in your comments, press text and when you click on the graph the text will appear. Use the eraser button to delete the text comment or to redo for placing again. Clearing the graph traces will clear the comments (menu ‘View/Clear Graphs’ or pressing ‘Shift’ and ‘Delete’ key) Note: www.dtec.net.au... -
Page 84: Exporting Data
RPM point along with the RPM incremented points. You can add field headings to the top of the data columns for meaningful reference when viewing. Below is shown a ‘Bitmap’ export of a main Graph Window. www.dtec.net.au... -
Page 85: Chapter 12: Live Data Viewing
Chapter 12: Live Data Viewing Screens for monitoring data live during testing Note: Not all screens are visible with a single monitor and not all data is relevant to all systems e.g. live power if in Inertia dyno mode www.dtec.net.au... -
Page 86: Gauge Screens
This ‘Graph’ screen is the main one used on a brake style dyno whilst testing. It draws the curve as the test progresses. Tip- ”Show Data” button under RH scale reveals digital readout of data at the cursor. Large clearly visible ‘Dashboard’ allows easy steady state tunning observations. www.dtec.net.au... - Page 87 Alarm Limits”) are applied and a bar graph shows deviation from a target (deviation is also selected in “Setup/Data Alarm Limits”) ‘Large Text” displays selected data in digital format. There are ‘Single’ and ‘Dual’ chart recorders available to select from also. www.dtec.net.au...
-
Page 88: Observing The Data Channels
Note: DYnertia3 internally reads mV from 0-5000, If you select a switch setting of 0-15V range you are dividing the input by 3 before it is measured. The ‘raw’ values will be still in the 0-5000 range eg. 9V input would be 3000mV raw. -
Page 89: Display Current Afr/Lambda
“C” button (this can also be selected under menu choice ‘Setup/Software/Lambda AFR’). DYNertia3 will pick up if you have calibrated your input channel in units of Lambda or AFR by checking if the words appear in the selected sensor name under menu option ‘Setup/Sensor Configuration’ “ Lambda “ or “ AFR “ are the terms it searches for (note the space either side). -
Page 90: Chapter 13: Analysing Data ('View' Menu)
Chapter 13: Analysing Data (‘View’ Menu) Chapter 13: Analysing Data (‘View’ Menu) Analysis tools for getting the most from your recorded data www.dtec.net.au... -
Page 91: Trace Info
To allow up to 10 traces to be analysed a secondary Window can be enabled, especially useful if you have dual monitors fitted and enabled as it can be displayed there. This Window allows selection and control of traces, just as the main Graph Window does. www.dtec.net.au... -
Page 92: Individual Trace Set
(e.g. using the corner arrows) will vary what is seen in this screen. Information This button will reveal a summary table (Trace Info) of the data associated with the trace set currently being viewed. www.dtec.net.au... -
Page 93: Compare
Select Traces to compare: Choose to view the traces loaded in the Main dyno ‘GRAPH’ Window or those loaded in the Secondary Graph Window. Tip- The RPM scale is taken from the main GRAPH Window, so trimming the main graph (e.g. using the corner arrows) will vary what is seen in this screen. www.dtec.net.au... -
Page 94: Torque Analysis
The ‘Markers’ button activates markers (vertical lines) on the screens show the peak RPM for maximum Power and Torque. The ‘Curve Area’ is a mathematical calculation and has no standard unit of measurement (it is derived from RPM Note: and Torque data). www.dtec.net.au... -
Page 95: Losses
Losses Losses system is a DYNertia3 software feature. It is a tool that measures and applies a correction for dyno system losses (friction, windage etc) and also for vehicle driveline losses, it allows analysis of this data also in the Windows shown below. -
Page 96: Lambda / Afr Deviation
Individual Trace view: The trace selected will be shown in the ‘Individual Trace’ Window for a detailed look at all of the data and what the consequences of the mixture deviation may have been at the cursor point. Tip- See also the manual chapter ‘Inputs- Using’ for the ‘Current Lambda / AFR’ live tunning Window information. www.dtec.net.au... -
Page 97: Distance / Speed / Time / Rpm Analysis
The graph can be trimmed by manually entering an accumulated distance to end the scale at e.g. in the example above we could enter a value less than 574 meters if we wished! Select a Trace to view: Any of the 10 traces loaded into the main Graph Windows can be selected. www.dtec.net.au... -
Page 98: Slip / Tyre Growth
Slip / Tyre Growth Shows the percentage of difference of a trace’s RPM (measured from DYNertia3’s speed sensor but using the drive ratio to correct to engine RPM) to that of the secondary RPM source, if used. This Window was designed to show problems with clutch slip, loss of tyre traction and also the engagement points of centrifugal clutches. -
Page 99: Run Duration Info
Select Speed or RPM: Choose the units to time. Great for showing changes in acceleration rate between tests (i.e. 100 – 200 kph times). Tip- The two values will initially be selected from the graph scale settings you have chosen (Run start and finish RPM/speed). www.dtec.net.au... -
Page 100: Point To Point Times
The minimum and maximum coloured selections can be turned on or off to help visibility. When both are off the trace data is all white and not coloured. Your range settings can be saved or loaded for future reference. www.dtec.net.au... -
Page 101: Xy Graph
Select a Trace to view: Any of the 10 traces loaded into the main Graph Windows can be selected. Individual Trace view: The trace selected will be shown in the ‘Individual Trace’ Window for a detailed look at all of the data. www.dtec.net.au... -
Page 102: Run Data Vs Time
Select a Trace to view: Any of the 10 traces loaded into the main Graph Windows can be selected. Information This button will reveal a summary table (Trace Info) of the data associated with the trace set currently being viewed. www.dtec.net.au... -
Page 103: Chapter 14: Inputs- Using
Chapter 14: Inputs- Using Chapter 14: Inputs- Using How to connect DYNertia3 to various input sensors! How to configure and calibrate input channels! www.dtec.net.au... -
Page 104: Pin Allocations
Analogue input for general purpose data acquisition, selectable range (15V Max) Must be connected to any ‘load cell’ input if a brake style dyno is being used. 2 PIN Power Supply for DYNertia3 (must be connected, LED next to it blinks twice to confirm) 12V + input: For powering DYNertia3 (7 to 18 Volts DC is required). -
Page 105: General Input Notes
(called ‘bootlace ferrules’) to the wire ends. DYNertia3’s 0-5V (or 0-15V), 10 bit resolution allows voltage steps as small as 5mV (15mV with 0-15V settings) to be measured but in practice its signal noise that limits this measurable voltage. -
Page 106: Connecting Sensors
You will need to check the settings in the ‘Setup’ menu under ‘Sensor Configuration’ to let DYNertia3 know the voltage range, display units and calibration details if required. This is covered at the end of this chapter. -
Page 107: Resistive Sensor Connection
Thermo-Amp is selected. This is covered at the end of this chapter. For the 0-500 C range set the input range on DYNertia3 to 5V and not the 15V as shown above, this is as we have configured the ‘sensor list’ to allow a higher resolution at lower temperatures. -
Page 108: Air/Fuel Ratio Meter Connection (Dtec 'Wb2' Unit As Example)
Air/fuel ratio meter connection (DTec ‘WB2’ unit as example) DYNertia3 can interface with any Air Fuel Ratio (AFR) meter that has an analogue output, as most do. The meter itself should be powered directly from the DYNertia3 battery as they draw considerable current to operate the oxygen sensor heater element (keep an eye on battery voltage as they can flatten batteries quickly!) Many common AFR meters are already pre-calibrated in DYNertia3 software;... -
Page 109: Rpm Adapter Input
General notes on wiring the RPM adapter input (secondary way of measuring RPM) ‘RPM Adapter’ input is for an optional direct engine RPM input (main RPM input is via DYNertia3’s sensor) and requires switching (pulsing) to ground so DYNertia3 can determine the RPM. -
Page 110: Basic Connections For A Dtec 'Rpm Adapter' To Dynertia3'S Rpm Adapter Input
The adapters power supply ground (0V) will also need to be connected to the vehicles for some applications (see upcoming diagrams). Using a separate power supply battery for ‘RPM Adapter’ allows it to remain isolated from DYNertia3 and helps prevent ignition interference from entering the DYNertia3 system. -
Page 111: Connections For A Dtec 'Rpm Adapter' To Suit Coil 'Drive' Signals
Chapter 14: Inputs- Using Connections for a DTec ‘RPM adapter’ to suit coil ‘drive’ signals Connections for a DTec ‘RPM adapter’ to suit ‘VR’ (inductive) sensors We suggest an inexpensive ABS wheel speed sensor be used and triggered by a rotating engine component (e.g. a bolt head) as this may prove much more convenient than connecting to the wide variety of ignition systems in use. -
Page 112: Sensor Configuration
Note: DYnertia3 internally reads mV from 0-5000 (0-5V), If you select an input voltage switch setting of 0-15V you are dividing the input by 3 before it is measured. The ‘raw’ values will be still in the 0-5000 range e.g. 9V input would be 3000mV raw. -
Page 113: Creating Your Own Linear (2 Points, Straight Line) Sensor Calibrations
(e.g. 3800mV may be 1000 psi of pressure from the sensor). 5. Add the units you want displayed in the relevant screens, in this example “PSI”, as shown below. To actually view the mV reading that DYNertia3 is measuring for a given sensor input use the ‘Data Channels’ Note: analyser screen. -
Page 114: Naming And Calibrating Of Lambda / Afr Meter Inputs
Lambda). DYNertia3 will pick up if you have calibrated your input channel in units of Lambda or AFR by checking if the words appear in the selected sensor name under menu option ‘Setup/Sensor Configuration’, “ Lambda “ or “ AFR “ are the terms it searches for (note the space either side). - Page 115 “File” added so it can be seen that it is a full calibration table and not just linear (2 points). That’s it! Your new ‘non-linear’ sensor will appear in the ‘Sensor Name’ list. You can allocate it to a channel now. www.dtec.net.au...
-
Page 116: Testing Sensor Configurations
Note: DYnertia3 internally reads mV from 0-5000, If you select a switch setting of 0-15V range you are dividing the input by 3 before it is measured. The ‘raw’ values will be still in the 0-5000 range eg. 9V input would be 3000mV raw. -
Page 117: Getting The Best Data
Reference Voltage Correction: A tiny voltage error may be present in DYNertia3’s internal 5 Volt supply, this option is available to correct for this variation. This adjustment is rarely required as the 5 Volt is very precise. Simply measure the voltage between the ground and 5V output terminals on the data acquisition connector and enter the measured voltage. -
Page 118: Sensor Alarm Points
Left hand side. Sensor On / Off (Recording) This option in ‘Sensor Configuration’ allows the data acquisition channels to be easily turned on or off so as they do not record when testing. www.dtec.net.au... -
Page 119: Data Consistency
For consistency it is a good habit to use sensor calibrations that span the same range, for example if using different coolant temp sensor types then calibrate them all from, say 0 - 200 degrees (regardless of type), that way when data from the different tests is overlaid or merged it will still be valid! www.dtec.net.au... -
Page 120: Chapter 15: Outputs- Using
Chapter 15: Outputs- Using Chapter 15: Outputs- Using How to connect auxiliary outputs! How to use auxiliary outputs! www.dtec.net.au... -
Page 121: Auxiliary Connections
Auxiliary Connections Connecting outputs if required DYNertia3 has included the ability to control additional equipment. The auxiliary outputs ‘sink’ (switch to ground) when active and can directly control a relay. A convenient battery voltage (12V) terminal is provided to simplify wiring. -
Page 122: Brake' Output
Alternatively a ‘Right’ click on the icon will hold the output on continuously until another ‘Right’ click is done again i.e. ‘Right’ click toggles the output state. If not allocated to a brake; this output would be perfect for remotely turning on a cooling fan etc. www.dtec.net.au... -
Page 123: Chapter 16: Load Controllers
‘open loop’ or ‘closed loop’ dyno system. Most software described will be only relevant if you have a ‘Load Controller’ system fitted. Refer to the chapter ‘Brake Style Dyno Setup’ for general details on brake dyno setup, regardless of type. www.dtec.net.au... -
Page 124: Hardware Mounting & Basic Wiring
Keep the controller and PC at a distance. Coil any spare cable up neatly at the PC. DYNertia3 software can even be operated by remote control if required (using a cheap PC ‘page turner’ or wireless keyboard are some options), tests can be started and stopped and new files even created (names incremented). -
Page 125: Eddy Current Load Controller Wiring
(and if from a truck retarder application) may be wired for 12 or 24VDC. This must be confirmed and the brake reconfigured if incorrect. Retarder coils are generally 12VDC so 192VDC involves all 16 coils connected in series. See DTec website ‘downloads’ for information (‘Brake Chassis Design Tool’). Contact us if any doubts! The Power Control Module is a small unit that is permanently wired into the Load Controller unit (via small white and brown wires). -
Page 126: Eddy Current Controller Wiring Harness Connections
(inc. retarder) with the power on. The current drawn from the mains supply depends on the brakes electrical design and the power setting in DYNertia3 software. It is generally highest in the ‘roller brake enabled’ mode when the rollers are locked to assist in remove a vehicle from a chassis dyno. -
Page 127: Pwm Current Load Controller Wiring
The PWM output has maximum ‘sink’ or ‘source’ current of 30mA, it must be used to drive the brake load WARNING: via suitable interface circuitry, and this is the customer’s responsibility to acquire/design so as to prevent damage to the DTec Load controller unit. ‘Flyback’ (back EMF) protection must also be incorporated into your design, YOU HAVE BEEN WARNED! Provide suitable circuitry for PWM to drive your brake load (<30mA current draw and include ‘Flyback’... -
Page 128: Pwm Current Controller Wiring Harness Connections
Black Negative Connects to “Power Input” terminal of DYNertia3 unit Positive Speed signal from Load Controller to DYNertia3: Connects to speed sensor input “Signal” terminal of DYNertia3 unit Green Pulse out Speed sensor input to Load Controller: Blue Pulse in... -
Page 129: Load Cell Connection
Note: If a hydraulic load cell with pressure sensor is used, this will connect into Channel 5 of DYNertia3 in place of the load cell amplifier output. This will require a manual setup as there is no amplifier to adjust so the guided calibration will not be of value. -
Page 130: Load Cell Setup & Calibration
Adjust the amplifiers ‘Offset’ (zero or null) until the digits turn green as shown on the Right then press ‘Next Step’ button. NOTE: If the ‘offset’ screw on DTec load cell amplifier is turned out too far anti-clockwise (lowering voltage) then the output will suddenly go to a high voltage i.e. - Page 131 Span will effect Offset and vice versa. Note: Please see your DTec Load Cell Amplifier technical sheet if you are having trouble adjusting the settings within range. You can also alter your load cells entered rating figure slightly if required to get the adjustments within range.
-
Page 132: Manual Sensor Calibration
To allow automatic drift cancellation the guided calibration process leaves a small offset voltage at 0Nm (approximately 100mV). DYNertia3 cannot read negative values so by having a small offset it allows the software to sense when the load cell/system drift is negative (less than 0Nm) and to compensate for it. -
Page 133: Brake 'Closed Loop' Pid Tuning
Load Unit- Current Limitation: This sets the maximum power that is provided to the brake. 100% can be used if you are sure that both the mains supply and DYnertia3 can handle the maximum current drawn by the brake. -
Page 134: Sudden Rpm/Speed Drop Warning
Note: Every dyno design has different behaviour due to inertia, brake power, engine power, gearing etc. so it is not possible to have one setting for all dyno. You WILL need to tune to get acceptable behaviour when commissioning. www.dtec.net.au... -
Page 135: Setup Procedure
Too low and slower to reach target and respond to small disturbances Too high and rapid oscillation that puts ‘noise’ in the system Tip- Start at very close to 0, D is often used in only very tiny amounts if at all as sensitive www.dtec.net.au... -
Page 136: Upload Settings
This must be a temperature sensor of the switch type, see later in this chapter on wiring connections to the auxiliary port of the load controller hardware. www.dtec.net.au... -
Page 137: Closed Loop' Windows
Manual Target Fast Setting: Opens a window to directly enter a target RPM/speed. The max limit set in this screen comes from the value used in the menu ‘Scales’. Note: The min limit comes from the setting in the ‘Run Options, Files and Information’ window shown soon. www.dtec.net.au... -
Page 138: Ramp Testing Load Control
After the ‘Ramp Editor’ is closed the Load Control window will now display the selected ramp as a preview. Press the “RAMP START” button and DYNertia3 will start waiting for the test to start. Accelerate the engine until the start RPM is reached; it will then follow the ramp automatically and end the test when the end RPM is reached. -
Page 139: Step Testing Load Control
After the ‘Step Editor’ is closed the Load Control window will now display the selected steps as a preview. Press the “STEP START” button and DYnertia3 will start waiting for the test to start. Accelerate the engine until the start RPM is reached; it will then follow the step profiles automatically and end the test when the end RPM is reached. -
Page 140: User Testing Load Control
After the ‘Step Editor’ is closed the Load Control window will now display the selected steps as a preview. Press the “USER START” button and DYnertia3 will start waiting for the test to start. Accelerate the engine until the start RPM is reached; it will then follow the set profiles automatically and end the test when the end RPM is reached. -
Page 141: Run Options, Files And Information
This should be set to limit mechanical damage from over travel. Manual Min RPM: The minimum RPM that is allowed when in manual test mode can be set to prevent stalling the engine. If in ‘Speed’ mode the RPM is replaced with a speed setting. Note: www.dtec.net.au... -
Page 142: Manual Mode Load Response
These functions are discussed further in the section on auxiliary options. Record Run: The start and finish of the test recording can be configured to adopt it’s settings from the ‘Timeline’ (as is usual) or to be manually controlled from the “START RUN” button where appropriate. www.dtec.net.au... -
Page 143: Load Controller Auxiliary Options
The expansion port on the load controller units allows connection for auxiliary functions such as additional outputs, servo throttle output, over temperature input and manual throttle control (potentiometer). DTec have a ‘Breakout Board’ for convenience with screw type terminals to provide for easy connection. Alternatively you can wire up your own connector using the information below for the 'DE-9' socket (9 pin serial) on the side of the load controller case (either our EC or PC controller). -
Page 144: Expansion Port Functions
The load controller outputs conventional ‘servo pulse code’ (1000-2000us) that is supported by most heavy duty servos. *NOTE: Servos are very sensitive to electrical interference. The DTec breakout board has a small filter capacitor added, but generally you will need to place a small capacitor (e.g. 0.1 uF) between across the signal to ground and also the signal to power supply wire directly at the servo. -
Page 145: Auxiliary Outputs 1 And 2
This must be a temperature sensor of the switch type and be normally closed to ground. From within the menu option ‘Setup/load control’ is the control button to activate the feature. www.dtec.net.au... -
Page 146: Chapter 17: Losses Correction
Chapter 17: Losses Correction Chapter 17: Losses Correction DYNO Mechanical Loss Correction DRIVELINE Mechanical Loss Correction www.dtec.net.au... -
Page 147: Losses' System
Any mechanical system will have Power losses - your Engine, Transmission, Tires and the Dyno itself are no exception. Within DYNertia3 we refer to these as Mechanical Losses (sometimes described elsewhere as ‘Parasitic’ Losses). Every bearing, gear, chain, belt or other component of the system under test and in the Dyno itself is increasing these mechanical losses. -
Page 148: Configuration Window
Icon that appears on the DYNO and GRAPH Window will be green. The losses configuration Window shown allows the choice of ‘Estimated’ or ‘Measured’ dyno loss correction. Note: The comments that appear during the process are very descriptive; please read them carefully as you progress. www.dtec.net.au... - Page 149 Chapter 17: Losses Correction Configuration Window (cont.) Pressing the “?” will reveal an information only Window, this outlines pro’s and con’s of each method available. www.dtec.net.au...
-
Page 150: User Estimated Mechanical Loss Correction
This is not a measured loss calculation, it is just an estimate. The result will depend on how well the loss percentage has been researched, many users have their own idea of the losses they expect from manual and automatic drivelines. It is not designed as a tool for ‘adjusting’ power figures to meet expectations. www.dtec.net.au... -
Page 151: Measured Mechanical Loss Correction
The deceleration of the dyno is then completely dependent on its losses. Note: The max safe RPM should be reached, though DYNertia3 software will extrapolate the data to create a curve that extends beyond your set values. Tip- Testing by leaving the vehicle on the rollers will compensate for not only dyno losses but vehicle drive losses also. -
Page 152: General Setup For Dyno Loss Testing
DYNertia3 will calculate the losses and display them in the ‘Driveline Losses’ window Note: The max safe RPM should be reached, though DYNertia3 software will extrapolate the data to create a curve that extends beyond your set values, therefore testing to very high RPM is not necessary. -
Page 153: Observing Effect Of Losses Correction
Whenever losses is enabled the Icon that appears on the Dyno and Graph Window will be green. When you preview files done in this mode (In ‘DYNertia3 File Explorer’) the indicator Icon will show if loss correction has been applied. -
Page 154: Chapter 18: Maths Channels
Chapter 18: Maths Channels Chapter 18: Maths Channels Additional data channels Creating maths expressions Saving and applying expressions to files www.dtec.net.au... -
Page 155: Concept
Two maths channels are available and are displayed in all of the dyno Windows where the standard input channels are displayed. ‘DYnertia3 File Explorer’ Window is the entry point to generate maths ‘expressions’ and to and control their storage and application. - Page 156 The maths ‘Expression’ (formula for creating data to populate the maths channels) is saved as special files (.D3EXP), this file can then be ‘loaded’ into math channel 1 or 2 and when back in the ‘DYNertia3 File Explorer’ Window this can be attached to any file to add the extra channel.
-
Page 157: Sample Expressions, Simple
RPM point to the next (fuel consumption) for the whole run. When testing expressions it must be noted that there is a button that can clear the ‘Public” variables as these will need resetting to re-test (as value will accumulate with previous tests) www.dtec.net.au... -
Page 158: Creating And Saving A Math's Expression
(1 in this example). ‘Clicking’ on a file of choice in ‘DYNertia3 File Explorer’ will now give you the option of applying the expression to the file, you will see the columns of previewed data change to add the new values. -
Page 159: Exception' Notifications
Chapter 18: Maths Channels ‘Exception’ notifications If after applying the expression in ‘DYNertia3 File Explorer’ a red ‘cross’ appears then it means that when applying the expression to the dyno file an ‘exception’ occurred. ‘Clicking’ on the red cross will open the ‘Expressions exceptions’... -
Page 160: Chapter 19: 'Utilities' Menu
Chapter 19: ‘Utilities’ Menu Chapter 19: ‘Utilities’ Menu Send an Email Converter for Lambda AFR Calculator for RPM/Torque/Power Metric/Imperial Convertor for Torque/Power Display Current Weather Data Display Current Lambda/AFR RPM/Speed Stability OBDII Speedometer Calibration Data Diagnostics www.dtec.net.au... -
Page 161: Send An Email
We have already entered the value for most common fuels. You can enter your own value if you are using a blended fuel and then save this for use in DYNertia3 later (e.g. in the ‘Lambda/AFR deviation’ analyser Window). Once the fuel has been selected then you can manually enter a Lambda value and the equivalent AFR will be displayed. -
Page 162: Rpm / Torque / Power Calculator
A calculator that allows you to enter (imperial or metric) RPM or Torque figures to show the Power that would result. Display current Weather Data Allows the viewing of the weather data from the optional DTec ‘Weather Watch’ automatic weather station. ensure it is connected and configured to a PC USB port via “Setup/Communication”. -
Page 163: Display Current Afr/Lambda
This screen monitors the dyno input speed over time. It is designed for helping check a brake type dyno’s ability to maintain a constant speed but can also be used to check the speed sensors behaviour. Note: It only displays speed data from the dyno speed sensor, not engine RPM etc. www.dtec.net.au... -
Page 164: Data Diagnostics
You can check the naming of channels and that they function. Pressing the “In mV” button allows us to read the voltage coming into DYnertia3 directly (‘raw’ with no calibrations applied). This is what is used to gather the data for calibration i.e. -
Page 165: Chapter 20: Trouble Shooting & Faq's
Chapter 20: Trouble Shooting & FAQ’s Chapter 20: Trouble Shooting & FAQ’s Common mistakes made Frequently asked questions (FAQ) www.dtec.net.au... -
Page 166: Trouble Shooting- Common Issues
I don’t know that my sensor is working correctly. After you first power up DYNertia3 controller the status LED will flash briefly twice and then remain on. After the ‘Linking’ process (menu “Setup/Communication”) the sensor operation can be checked via the button “DYNertia3 Sensor Test”. - Page 167 (DYNertia3 will recreate it) and re-start. You will need to re-enter your settings (SETTINGS.txt file has them). Screen text appears to be out of place, the wrong size and DYNertia3 screen seems to be all ‘messed up’. Windows has been set to the wrong display properties (its magnifying the text so it won’t fit on the screen).
- Page 168 The DYNertia3 screen does not fill the whole PC’s screen. The DYNertia3 Window does not size itself to the PC screen, if you wish you can adjust your PC screen resolution to best suit (Program Window size is1024 x 768) When In DYNertia3 File explorer I cannot get a file to load into graph screen.
-
Page 169: Frequently Asked Questions (Faq's)
There is an optional secondary tacho input in DYNertia3; this can be used as the sole RPM source and is useful for determining clutch slip (engagement RPM) or loss of tyre traction. It can also allow automatic determination of the drive ratio between the dyno and engine for quick ‘ratio teaching’... -
Page 170: Chapter 21: Specifications
Chapter 21: Specifications Chapter 21: Specifications Hardware specs and notes pages! www.dtec.net.au... -
Page 171: Specifications
5mV (when 0-5V range selected else 15mV), 10 bit analogue to digital conversion Reference Supply sourced, software compensation (or offset) can be applied Greater than 10KΩ Input impedance Dimensions Approximately 110L x 83W x 45H (mm), excluding mounting tabs www.dtec.net.au... -
Page 172: Notes
Chapter 21: Specifications Notes Keep track of important setup information here for future reference Primary Inertia Factor of Dyno: Inertia Factor of 2 flywheel: Inertia Factor of 3 flywheel: Roller Circumference: Gear Ratio of flywheel drive: General Notes: www.dtec.net.au... -
Page 173: Chapter 22: Additions & Changes
Chapter 20: Additions & Changes Chapter 22: Additions & Changes Latest software and manual amendments www.dtec.net.au... -
Page 174: Software V3.4.X Changes & Errata
“Shaft RPM” but rather “N/A Shaft” or “N/A Roller” based on chassis or engine dyno type. Known issues V3.4.1 has error in ‘maths’ functions. V3.4.2 (current as of time of tis manual review) has error when opening calculator function from within the ‘Speed to RPM’ window. www.dtec.net.au...
Need help?
Do you have a question about the DYNertia3 and is the answer not in the manual?
Questions and answers