Tap the button for the test type you want to configure to open the relevant settings.
The following settings are available. Click on the relevant heading to see more information about the available settings for each test type:
The DECEL TEST SETTINGS give you the ability to configure deceleration tests. They cover start/end conditions, alerts, and MFDD options.
You can change a setting by tapping the corresponding button.
Return to the main settings screen by tapping the Exit button in the bottom left corner.
DECEL TEST SETTINGS Screen
Start/End Speed
Define the start and end speed conditions of the deceleration test by tapping the corresponding buttons and using the presented keypad.
Example: Start Speed Keypad
Save the selected value by tapping the Confirm button in the bottom right corner. Tap the Cancel button in the bottom left corner to return to the Settings screen without saving.
Alert at Start
Enabling this setting will activate audible and visual alert signals when the Decel Test's start speed criteria are met. The unit will briefly beep and the 4 LEDs on the device will flash green.
Alert at End
Enabling this setting will activate audible and visual alert signals when the Decel Test's end speed criteria are met. The unit will beep and the 4 LEDs across the top of the device will flash green.
Write Results to SD
Enabling this setting makes the unit write the Decel Test results to the inserted SD card in the connected VBOX.
If MFD Touch cannot detect an SD card, it will beep, the 4 LEDs will flash red, and a 'NO SD CARD' message will be displayed.
FROM SPEED MFDD SETTINGS
This area allows you to set up the start and end periods of the Mean Fully Developed Deceleration (MFDD) analysis period. This deceleration figure is used to show the maximum deceleration a vehicle can achieve. It is usually the deceleration between 80% and 10% of the trigger activation speed, the time at which the vehicle is loaded up and braking at its highest achievable level.
The MFDD is calculated by the following formula (using the default 80%–10% value):
MFDD = ((v_08)² – (v_01)²) / (25.92 * (s_01 – s_08))
Where:
v_08 is the speed at 80% of the brake trigger activation speed. v_01 is the speed at 10% of the brake trigger activation speed. s_01 is the distance at which the speed is v_01. s_08 is the distance at which the speed is v_08.
You can also calculate MFDD using Speed by tapping the Percentage label until it reads Speed and entering the required values.
To change any values, tap the current value and use the presented keypad to enter the required value.
Save the selected value by tapping the Confirm button in the bottom right corner. Tap the Cancel button in the bottom left corner to return to the Settings screen without saving.
From
| Speed | Percentage |
|---|---|
| The maximumFromspeed selectable is the value inputted as theStart SpeedorMinimum Trigger Speed.The minimumFromspeed selectable is the greater value of 5 km/h or theTovalue +1. | The maximumFrompercentage selectable is 100%.The minimumFrompercentage selectable is theTovalue +1. |
To
| Speed | Percentage |
|---|---|
| The maximumTospeed selectable is theFromvalue -1. The minimumTospeed selectable is the value inputted as theEnd Speed, or0if using a brake trigger. | The maximumTopercentage selectable is theFromvalue -1.The minimumTopercentage selectable is the value inputted as theEnd Speedexpressed as a percentage of configuredStart Speed, or0if using a brake trigger. |
The ACCEL TEST SETTINGS menu configures acceleration tests. It contains start/end conditions, alerts, and 1 ft rollout options. You can change a setting by tapping the corresponding button. Return to the main settings screen by tapping the Exit button in the bottom left corner.
You can view the test parameters on the display via the Accel Test parameter.
ACCEL TEST SETTINGS screen.
Tap the Test Type button to choose between Speed, Distance, 0-Speed-0 (e.g. 0–100–0) or VMAX.
Tap the question mark to view more information about the test types. The displayed parameters will depend on the chosen test.
Accel tests can start from a nominated speed or a VBOX trigger input. The trigger option may be beneficial when the vehicle under test cannot remain stationary, e.g. floating on water or creeping on an automatic transmission. A trigger test will not start if the speed is greater than the maximum trigger speed input.
The following Accel Test Types are available:
Speed
From a start speed to an end speed.
Parameters
| Start Condition - Trigger | Start Condition - Speed |
|---|---|
| The acceleration test will start when a rising trigger event is detected by the connected VBOX. | The acceleration test will start at a defined start speed. |
| Max Trigger Speed To prevent an acceleration test trigger from starting when the GNSS speed is above a certain value, you can set the maximum trigger speed. | Start Speed |
| End Distance | End Distance |
Distance
From a start speed to an end distance.
Parameters
| Start Condition - Trigger | Start Condition - Speed |
|---|---|
| Max Trigger Speed To prevent an acceleration test trigger from starting when the GNSS speed is above a certain value, you can set the maximum trigger speed. | Start Speed |
| End Distance | End Distance |
0-Speed-0
From stationary to a target speed and back to stationary.
Parameters
| Start Condition - Trigger | Start Condition - Speed |
|---|---|
| Max Trigger Speed To prevent an acceleration test trigger from starting when the GNSS speed is above a certain value, you can set the maximum trigger speed. | Target Speed |
| Target Speed |
VMAX
From a start speed to the end of acceleration when speed = 0. Maximum speed result only.
Parameters
| Start Condition - Trigger | Start Condition - Speed |
|---|---|
| Max Trigger Speed | Start Speed |
| Speed Threshold The speed threshold setting defines the minimum speed for which the results of 'end of acceleration' are produced. Any 'end of acceleration' detected below the nominated speed will be ignored, and the relevant test run will be aborted. This setting is used to prevent unwanted results (e.g. from manoeuvring to the test circuit). | Speed Threshold The speed threshold setting defines the minimum speed for which the results of 'end of acceleration' are produced. Any 'end of acceleration' detected below the nominated speed will be ignored, and the relevant test run will be aborted. This setting is used to prevent unwanted results (e.g. from manoeuvring to the test circuit). |
Enter Parameter Values
You can define the start and end conditions by tapping the corresponding buttons and using the presented keypad.
Example: Start Speed Keypad
Save the selected value by tapping the Confirm button in the bottom right corner. Tap the Cancel button in the bottom left corner to return to the Accel Test Settings screen without saving.
Alert at Start
Enabling this setting activates audible and visual alert signals when the test's start speed criteria are met. The unit will beep, and the 4 LEDs on the device will flash green.
Alert at End
Enabling this setting activated audible and visual alert signals when the test's end speed criteria are met. The unit will beep, and the 4 LEDs on the device will flash green.
One-Foot Rollout
Enabling this setting will prohibit all tests from commencing until the vehicle has covered a 1 ft or 0.305 m distance. You can find more information about one-foot rollout here.
Write Results to SD
Enabling this setting will make the unit write the accel test results to the inserted SD card in the VBOX.
If MFD Touch cannot detect an SD card, it will beep, the 4 LEDs will flash red, and a 'NO SD CARD' message will be displayed.
The TRIGGER TEST SETTINGS menu configures the Trigger Tests. I contains settings for Minimum Trigger Speed, Alert at Trigger, Alert at End and Trigger MFD settings. You can change a setting by tapping the corresponding button. Tap the Exit button in the bottom left corner to return to the Select Test Settings screen.
TRIGGER TEST SETTINGS screen
Enter Parameter Value
You can define the trigger condition by tapping the corresponding buttons and using the presented keypad.
Example: Minimum Trigger Speed Keypad
Save the selected value by tapping the Confirm button in the bottom right corner. Tap the Cancel button in the bottom left corner to return to the Trigger Test Settings screen without saving.
Minimum Trigger Speed
Define the minimum trigger speed at which trigger activation becomes valid. If the trigger is detected below this speed, the test will not start. Change this value by tapping the current value and using the presented keypad.
Alert at Trigger
Enabling this setting will activate audible and visual alert signals when the Decel Test's trigger test has started. The unit will briefly beep and the 4 LEDs across the top of the device will flash green.
Alert at End
Select to enable audible and visual alert signals when the trigger test's end criteria are met. The unit will beep, and the 4 LEDs on the device will flash green.
FROM TRIGGER MFDD SETTINGS
This area allows you to set up the start and end periods of the Mean Fully Developed Deceleration (MFDD) analysis period. This deceleration figure is used to show the maximum deceleration a vehicle can achieve. It is usually the deceleration between 80% and 10% of the trigger activation speed, the time at which the vehicle is loaded up and braking at its highest achievable level.
The MFDD is calculated by the following formula (using the default 80%–10% value):
MFDD = ((v_08)² – (v_01)²) / (25.92 * (s_01 – s_08))
Where:
v_08 is the speed at 80% of the brake trigger activation speed. v_01 is the speed at 10% of the brake trigger activation speed. s_01 is the distance at which the speed is v_01. s_08 is the distance at which the speed is v_08.
You can also calculate MFDD using Speed by tapping the Percentage label until it reads Speed and entering the required values.
To change any values, tap the current value and use the presented keypad to enter the required value.
Save the selected value by tapping the Confirm button in the bottom right corner. Tap the Cancel button in the bottom left corner to return to the Settings screen without saving.
From
| Speed | Percentage |
|---|---|
| The maximumFromspeed selectable is the value inputted as theStart SpeedorMinimum Trigger Speed.The minimumFromspeed selectable is the greater value of 5 km/h or theTovalue +1. | The maximumFrompercentage selectable is 100%.The minimumFrompercentage selectable is theTovalue +1. |
To
| Speed | Percentage |
|---|---|
| The maximumTospeed selectable is theFromvalue -1. The minimumTospeed selectable is the value inputted as theEnd Speed, or0if using a brake trigger. | The maximumTopercentage selectable is theFromvalue -1.The minimumTopercentage selectable is the value inputted as theEnd Speedexpressed as a percentage of configuredStart Speed, or0if using a brake trigger. |
The Lap Timing Settings is where you can configure the start/finish gates and split gates to record lap timing.
Lap Timing Settings Screen 1 of 2
Clear All Gates
This button lets you clear all active lap timing gates.
When you tap the button, the unit will show you a Change Confirmation Screen. If you need to abort the process, you can tap this screen to go back to the Lap Timing Settings and keep your active gates.
Set Start Gate
Tap the screen when you are at the location where you want your start gate to be.
Tap the Cancel button if you want to return to the Lap Timing Settings without setting a start gate.
Set Finish Gate
Tap the screen when you are at the location where you want your finish gate to be.
Tap the Cancel button if you want to return to the Lap Timing Settings without setting a finish gate.
Set Splits
You can set up to 6 splits to use in your lap timing.
Tap anywhere on the screen to set a split at your current location.
The screen will automatically move to the next split when you set a split.
If you do not want to set more splits, you can tap the Confirm Splits button to confirm the splits you have set. This saves the splits you have configured and will take you back to the Lap Timing Settings.
Edit Splits
Once you have created splits, you can go back and edit your split setup. You can add additional splits if you have set < 6 splits and you can change the location of already set splits.
Use the Skip to Next button to navigate past splits you wish to keep. When you see the split gate you wish to set/change, tap on the screen to set the new split at your current location.
Lap Timing Settings Screen 2 of 2
Load Gates from SD
You can import gates from a gates file saved on your inserted SD card.
Tap the button to open the Select Gates File screen. You will see a list of the available Gate files on the SD card. Select the file you wish to use.
Save Gates to SD
Tap this button to save the configured start/finish gates and the split gates to a gates file on the SD card.
If you need to stop it from saving the file after confirming it, you can dismiss the file save by tapping on the screen while it is being saved.
Gate Width
The gate width setting controls how wide a lap timing gate is across the circuit. The default setting is 25 metres, but you may need to change this. For example, if a gate is incorrectly triggering on overlapping sections of the circuit, you should reduce the gate width.
Tap the gate width value button to input a different gate width.
Reset Lap Timing Data
Tap this button will clear cumulative and historical lap timing results, such as:
- Average lap time
- Lap count
- Best lap time
The lap timing data will be cleared, and you will be returned to the Lap Timing Settings.
If you tap on the screen during the reset process, you will cancel the reset process and be returned to the Lap Timing Settings.
Split Time from S/F
Split Time data can either be calculated from the Start Gate or relative to the previous split gate crossing. You can control how the split time is reported by configuring this setting.
- When enabled, the Split Time data will be calculated from the Start Gate crossing.
- When disabled, the Split Time data will be calculated from the previous Split Gate crossing (i.e. split-to-split time).
Write Results to SD
You can control the export of the Lap Timing results in this setting. When enabled, the lap timing results will be written to the SD card inserted into the connected VBOX.
Alert at Split
When enabled, an alert will occur when the defined split gates are crossed. This alert will include buzzer and LED notifications.
Alert at Finish
When enabled, an alert will occur when an active lap is completed. This alert will include buzzer and LED notifications.
Is this the VBOX unit or MFDT unit?