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SPEEDBOXMINI / TriggeredTestMeasurementValues

Triggered test measurement values

During triggered tests, which can be set up to trigger based on the trigger input, speed, acceleration, or on a voltage input, various parameters are calculated which are available on the serial port and CAN port. These can be viewed in the lite monitor, logged using a data logger or used in the Performance Monitor. These parameters are listed below. The following diagram gives a representation of a number of these measurements:

The following measurements are updated continuously throughout the test.

BT time into test
Elapsed time since the start of the test, resolution of 1ms.

BT path dist 3D
The total distance travelled by the vehicle during the test, including any distance due to a change in altitude (see diagram above), resolution of 1mm

BT forward dist
The test distance measured directly forwards from the test start point (see diagram above), resolution of 1mm

BT deviation dist
The distance away from a straight line drawn based on the heading at the start of the test (see diagram above), resolution of 1mm

BT direct dist
The straight line distance from the test start point to the test end point (see diagram above), resolution of 1mm

BT path dist 2D
The total distance travelled excluding any effects of changes in altitude, this is commonly used by other product manufacturers and removes the effects of errors on the vertical position. (see diagram above), resolution of 1mm

BT speed 3D
Current vehicle speed, including speed due to changes in altitude, resolution of 1mm/s

BT long accel
Current longitudinal acceleration value, resolution of 1mg

BT lat accel
Current lateral acceleration reading, resolution of 1mg

BT x dist
The distance travelled in the North direction, resolution of 1mm

BT y dist
The distance travelled in the East direction, resolution of 1mm

BT av accel
Average acceleration since the start of the test, resolution of 1mm

BT MFDD start
MFDD start threshold, resolution of 1%

BT MFDD end
MFDD end threshold, resolution of 1%

BT initial speed
Vehicle speed at the start of the test, resolution of 1mm/s

The following values are only available from the end of the test:

BT final speed
Vehicle speed at the end of the test, resolution of 1mm/s

BT MFDD
MFDD value from the test, calculated when the MFDD end speed is reached, resolution of 1mg