Performance Box Touch V2 – Accel Mode

Last updated
Save as PDF
Share
1. Share
2. Tweet
3. Share

Acceleration Mode is where you can perform acceleration tests by using either pre-defined configurations or your own specified values. You can also display up to 4 concurrent test results on the screen. You can access this display mode by pressing the Mode button at the bottom of the screen and selecting Accel.

The previously selected Acceleration test will be displayed after each power cycle.

You can choose from either speed or distance parameters to start and end the test. Test results displayed on the screen of the Performance Box Touch will remain on-screen at the end of the test until the next start condition is met.

The speed units used depend on what you select in the General Settings area.

Note: If the start condition is 0 km/h, Performance Box Touch will use the Smoothed Speed Value to reset the test to avoid a test incorrectly resetting in noisy satellite reception areas.

Accel Mode Overview

There are 3 different acceleration screens and you can access them by using the Forward and Back arrows at the bottom right of the screen or by swiping left or right on the screen.

Accel - Primary Screen

This is the default acceleration screen and it displays current/completed test information. If you have enabled One Foot Rollout or Slope Correction in the Accel Settings, the test header text will reflect the selected options.

The screen is split into 2 halves:

Left-hand side: This includes a live speed display which always show the current speed of the vehicle, irrespective of any test start or end conditions. If the vehicle is travelling slower than 0.5 km/h or the satellite lock is lost (less than 4 satellites), the value will display as 000.0.
Right-hand side: This contains test information: time taken, run number, distance travelled, maximum speed achieved (Vmax), maximum acceleration achieved (g) and height difference. These values will start to populate once the start condition of the test is met. When the end condition is met, they will remain on the screen until the start condition is met again. You can reset a test by pressing the Reset button at the bottom of the screen.

Note: If you are using the Performance Box Touch with a battery connected, the Current Test header will not include units (unless you have selected 0 – ¼ mile 0 – ½ mile) to make space for the battery charge icon.

Accel - Secondary Screen

This screen displays current test information for all ranges. If you have enabled One Foot Rollout or Slope Correction in the Accel Settings, the test header text will reflect the options.

The screen is split into 2 halves:

Left-hand side: This includes a live-speed display which will always show the current speed of the vehicle, irrespective of any test start or end conditions. If the vehicle is travelling slower than 0.5 km/h, or the satellite lock is lost (less than 4 satellites), the value will display as 000.0. Information about maximum acceleration achieved (Peak G) and maximum speed achieved (Vmax) is also available. These values will start to populate once the start condition of the Primary test is met. When the end condition is met, they will remain on screen until the start condition is met again. You can reset a test by pressing the Reset button at the bottom of the screen.
Right-hand side: This contains results from the defined acceleration test ranges, either as time, distance, or speed. These values will start to populate once the start condition of the test is met. When the end condition is met, they will remain on screen until the start condition is met again. Along with pressing the Settings button, you can also define Accel tests by double-tapping on an existing test range header or result.

You can reset tests by pressing the Reset button at the bottom of the screen.

Accel - Best Result Screen

This screen displays the best test information for all the ranges. If you have enabled One Foot Rollout or Slope Correction in the Accel Settings, the test header text will reflect the selected options.

The screen is split into 2 halves:

Left-hand side: This includes the maximum acceleration achieved (Peak G) and maximum speed achieved (Vmax) since reset. You can reset these values by pressing the Reset button at the bottom of the screen.
Right-hand side: This contains the best results from the defined acceleration test ranges, either as time, distance, or speed. You can reset these values by pressing the Reset button at the bottom of the screen.

Selecting Accel Tests

You can define Accel Tests by pressing the Settings button at the bottom left of the screen and selecting the Accel option. You can define 4 concurrent tests. These are by default: 0–60, 0–100, 0–100–0 and 0–¼ mile.

The currently selected test ranges are presented on the left-hand side of the screen and will be remembered for future use, even if you choose another mode.

Press on the existing parameters to change them.

Note: You can also define Accel tests in the Secondary Accel Screen by double-tapping on an existing test range header or result.

Test Type

Tap on the blue Test Type parameter to toggle between Speed, Distance or 0-Speed-0 (e.g. 0–100–0). The parameters displayed will depend on the test type you have chosen.

Speed Test Parameters	Distance Test Parameters	0-Speed-0 Test Parameters

Test Type	Parameters
Speed	Start Speed (km/h or mph)	End Speed (km/h or mph)	Result (time or distance)
Distance	Start Speed (km/h or mph)	End Distance (m or ft) Pre-Set Distance buttons include ¼ mile, ½ mile and 1 km.	Result (time or speed)
0-Speed-0	Target Speed (km/h or mph)		Result (time or distance)

Start/End Conditions

You can define the start and end conditions by pressing the corresponding buttons and using the presented keypad to set a value. If you are defining a Distance test, you can use one of the pre-set distance buttons to quickly choose the test.

Keypad example for Start Speed.

To save your chosen value, press the Confirm button on the bottom right of the screen. If you wish to return to the Custom Test screen without saving, press the Cancel button.

Notes:

The maximum input value is 999.9 for speed and 9999 for distance.
The minimum target value for a 0-Speed-0 test is 5 km/h / 3.1 mph.
You can enter speeds of up to 1 decimal place.

To save your chosen range, press the Confirm button at the bottom right of the screen. To go back to the Accel Mode screen without saving, press the Cancel Button at the bottom left of the screen.

The parameters of the Primary test are displayed at the top right of the Primary Accel Mode screen. The test ranges will be remembered for future use, even if you choose another mode.

Result Type

You can toggle between the test result type for a selected test range by tapping on the blue box with the current option.
Available result types include:

Speed and 0-Speed-0 tests:
- Time (default) - The elapsed time between the start and end conditions is given as the selected range result.
- Distance - The distance travelled between the start and end conditions is given as the selected range result.
Distance tests:
- Time (default) - The elapsed time between the start and end conditions is given as the selected range result.
- Speed - When the end condition is met, speed is given as the selected range result.

Accel Settings

You can access the Accel Mode settings screen by pressing the Settings button at the bottom left of the screen and selecting the Accel option. Now you can choose the test parameters and other test options. You can toggle between the different settings by pressing the corresponding blue value button next to an option.

Return to the main screen by pressing the Exit button at the bottom left.

Alert at End/Target

VBOX Touch Accel Settings Alert at End.png

By default, the Performance Box Touch has audible and visual alert signals for when the test end criteria and the target speed are met in a 0-Speed-0 test. It will beep and the 4 LEDs across the top of the device will flash green for 0.5 s. Tap the blue value button to disable/enable the alert.

Note: This setting will only apply to the Primary Test.

One-foot Rollout

VBOX Touch Accel Settings 1ft Rollout.png

When enabled, the test will not commence until the vehicle has travelled a distance of 1 ft or 0.305 m. You can find more information on the one-foot rollout feature here.

Notes:

You cannot enable One-foot Rollout while Slope Correct is enabled.
When One-foot Rollout is enabled, 1ft will appear next to the Test heading on the Primary Acceleration Display Screen and ONE FOOT ROLLOUT will be displayed on the right-hand side of the new session header in the Test Results.

Slope Correct

When you enable the Slope Correct, the Performance Box Touch will apply a DB Scanner slope correction method to the 'speed to speed' or 'speed to distance' acceleration test results that are presented on the screen.

Notes:

Slope correction only applies to the live display results to match post-process corrections from the DB Scanner third-party software. You cannot apply post-process corrections with Racelogic software programs.
You cannot enable Slope Correct while One-Foot Rollout is enabled.
If you have enabled Slope Correct, DBSC will appear next to the Test heading on the Primary Acceleration Display Screen and DBSCANNER SLOPE CORRECTED will be displayed on the right-hand side of the new session header in the Test Results.

Screenshot

Selecting the Screenshot button will save a full image of what is shown on the screen to the inserted SD card. You can learn more about the screenshot function here.

IMPORTANT
NEVER remove the SD card when a screenshot is being taken and saved, it could cause the unit to crash!

Test History

You can view a history of the test results by selecting the Results button at the bottom of the Primary Accel screen.

Test results will display until you choose a new test type or you press the Reset button.

Results screen sample

The tests will be displayed in chronological order and the fastest will be highlighted in green. You can scroll through the results by using the scroll bar on the right-hand side of the screen.

Each new session will have a separate header, which displays the time and date for the first completed test in that session.

Information in the results includes:

Test type
Time of first completed run in session
Date of first completed run in session
Test run number
Test completion time
Test completion distance (km/h or mph)
Maximum Speed (km/h or mph)
Maximum acceleration achieved during a test run (g)
Altitude difference between the start of test and end of the test (m or ft)

You can take a screenshot of the test history by pressing the Screenshot button.

Return to the main screen by selecting the Exit button on the bottom left.

IMPORTANT
Performance Box Touch can display a maximum of 127 tests in chronological order. However, if you have completed more tests they will still be recorded on the SD card. Once you have reached the 127-test limit, you will see a brief warning message advising you that further tests will not be saved to the Test History. This message will show again if you power-cycle the unit. A 'TEST HISTORY FULL' notification will also be displayed beneath the Live Speed display. To view new test history results, you must first press the Reset Button.

Save Results

You can also save the results as a .txt or .csv file (depending on the option selected) to the SD card by pressing the Save button at the bottom of the screen. When pressed, the unit will emit an audible confirmation notification. If the results have been saved unsuccessfully, for example, no SD card is inserted or the card is full, the button will flash 3 times and Performance Box Touch will emit an audible error notification.

If saved successfully, the file name will include the test type, the date, and the time from the first completed run in that session. Along with the test history information described above, the results file also includes average acceleration information, as well as the latitude and longitude position (in degrees and decimal degrees format) added to the session header.

Reset

Pressing the Reset button at the bottom right of the screen will reset all test results shown on the current screen. When you press it, the LEDs will briefly flash green twice and the unit will emit an audible confirmation notification.