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VBOX 3i Dual Antenna 100Hz Vehicle Dynamics Measur
The VBOX 3i has a host of features which makes it a very powerful and flexible vehicle testing data logger.
• 100 Hz logging to CF memory card
• High brake stop accuracy up to ±1.8 cm
• Very low latency: 8.5 ±1.5 mS
• Oversampled brake/event trigger input (25 nS)
• 4x analogue inputs
• 1x default CAN Bus port for input module expansion
• 1x configurable CAN Bus for vehicle CAN interface or VBOX data output
• Easy to fit and transport
• Real-time result display via serial, USB or Bluetooth
• User configurable logging conditions
• IMU integration
• Wide 7 V to 30 V operating range
• Low current consumption
• Audio voice tagging
Overview

A VBOX 3i Dual Antenna (VB3iSL) uses a GPS/GLONASS receiver to achieve high level accuracy and thanks to the twin antennas has the ability to measure slip and pitch/roll angles at 100 Hz.

The system is so accurate that it can even detect the difference a side wind makes to the slip angle measurement, a feat that even the very best inertial systems cannot currently replicate.

Higher accuracy with GPS and GLONASS
In addition to GPS, the VB3iSL tracks the Russian GLONASS range of satellites. The advantage of using both satellite constellations is that there are almost twice as many satellites in view, helping to maintain a robust satellite connection and increasing the accuracy of the system.

Slip and Pitch/Roll measurement using two antennas
Utilising two GPS/GLONASS antennas, the VB3iSL measures all of the normal VBOX GPS parameters, plus the azimuth and elevation between the antennas, i.e. the direction the antennas are pointing, and the angle between them measured from the horizontal. This allows the unit to measure slip angle, and also pitch angle (or roll angle depending on how the antennas are mounted), all at 100 Hz. This system is ideal for vehicle dynamics testing.
艾爾錡科技-RaceLogic-滑動和俯仰滾動測量

Package content
The VBOX 3i Dual Antenna comes with a VBOX Manager, a display enabling you to change the dynamic modes and filter settings, set up slip angle data and define antenna locations. A Dual Antenna Mounting Pole (max. width 2.5m) ensures the most accurate attitude measurement.

Video demonstrating pitch and roll angle measurement using the VBOX 3i Dual Antenna and IMU04.



Applications

VBOX 3i Dual Antenna can be used for a multitude of test applications such as
• Brake Testing
• Handling & Dynamics (ESC Testing, Aquaplane, Centreline Deviation, Lane Change, ...)
• ADAS & Safety Systems Testing
• Performance Testing (Coastdown, Pass-by-Noise, Speed & Distance Verification, ...)
• and more.
The VBOX Tools software analysis package allows you to carry out sophisticated tests in real-time and in post processing.
All parameters can be viewed in a customisable graph, and the data can be scanned, analysed and manipulated using the very powerful Report Generator function.
VBOX Tools is able to load signal data from an industry standard CAN database file (.DBC).
艾爾錡科技-RaceLogic-軟體

There are a number of standard test configurations which can be loaded into the software with one button click:
• Brake Testing – Using a brake pedal mounted trigger input, VB3iSL will measure braking distance to within ±1.8cm.
• Performance Testing – This unit is perfect for all variations of performance testing, the accuracy and quick response of the 100 Hz unit gives very repeatable and accurate results.
• Acceleration Testing – Instantly view speed versus time & distance tables.
• Circuit Testing - Extract and analyse lap information.
• Dynamic Tests - Slip and pitch angles updated at 100 Hz alongside speed, distance and acceleration.
• Steady State Cornering - Slip angle without any drift or correction over time.
• Trailer Angles - Measure relative angles between two fixed bodies (two systems needed)
• Accident Reconstruction - Log and animate the vehicle's movement in three axis
RepGen is very customizable, allowing results to be produced for virtually any type of automotive test. All created configurations can be saved and easily recalled for future analysis.
For customers with focused test requirements, we offer dedicated software packages to simplify the test procedure:
• Aquaplane
• Coastdown
• Lane Change
• Centreline Deviation
We also offer complete packages of hardware for specific tests:
• Test and Validation of Advanced Driver Assistance Systems (ADAS)
• Lane Departure Warning - 2cm accuracy combined with calibrated video overlay
• Adaptive Cruise Control - 2cm vehicle to vehicle accuracy
• Collision Avoidance Systems - vehicle to point, vehicle to vehicle
• Blind Spot Detection - Calibrated Video Overlay

Parameters
VBOX 3i Dual Antenna measures the following parameters at 100 samples per second:
• Time
• Position
• Velocity
• Vertical velocity
• Longitudinal velocity
• Lateral velocity
• Height • Heading
• True heading
• Lateral acceleration
• Longitudinal acceleration
• Distance between two cars
• Centreline deviation • Slip angle
• Pitch angle or roll angle, depending on antenna orientation
• Yaw rate
• Radius of turn

By adding data from an IMU additional benefits can be achieved, such as:
• Logging pitch and roll angle in real time
• Improved yaw rate and slip angle measurement
• Resilience against GPS dropouts

Many other external parameters can be logged either:
• by using the four high resolution analogue inputs built into the unit
• from a number of versatile RACELOGIC VBOX Input Modules
• or directly from the CAN bus of the vehicle using the RACELOGIC Vehicle CAN Database.


Specifications
All specifications refer to VBOX 3i Dual Antenna (IMU04 ready).

Velocity
• Accuracy: 0.1 km/h (averaged over 4 samples)
• Units: km/h or mph
• Update rate: 100 Hz
• Maximum velocity: 1000 mph
• Minimum velocity: 0.1 km/h
• Resolution: 0.01 km/h
• Latency: 8.5 ±1.5 mS****

Absolute Positioning
• Accuracy: 2 m*
• Accuracy with SBAS DGPS: >1 m*
• Accuracy with RTCM DGPS: 80 cm*
• Accuracy with RTK DGPS: 2 cm*
• Update rate: 100 Hz
• Resolution: 1.8 mm
• Height accuracy: 6 m*
• Height accuracy with DGPS: 2 m*

Distance
• Accuracy: 0.05 % (<50 cm per km)
• Units: Metres / Feet
• Update rate: 100 Hz
• Resolution: 1 cm Acceleration
• Accuracy: 0.50 %
• Maximum: 20 G
• Resolution: 0.01 G
• Update rate: 100 Hz

Accel/Brake Test Time
(Multifunction Display / VBOX Tools)
• Resolution: 0.01 s
• Accuracy: 0.01 s

Lap Timing(OLED Display / VBOX Tools)
• Resolution: 0.01 s
• Accuracy: 0.01 s**

Brake Stop Accuracy
• Accuracy: ± 1.8 cm
(for a typical 100-0 km/h brake stop)

Heading
• Resolution: 0.01°
• Accuracy: 0.1°

Memory
• Compact Flash: Type I
• Recording time: Dependent on flash card capacity***

Power
• Input Voltage Range: 7 – 30 V DC
• Power: Max. 5.5 Watts

Slip Angle Accuracy
• <0.2° rms at 0.5 m antenna separation
• <0.1° rms at 1.0 m antenna separation
• <0.067° rms at 1.5 m antenna separation
• <0.05° rms at 2.0 m antenna separation
• <0.04° rms at 2.5 m antenna separation

Pitch/Roll Angle Accuracy
• <0.14° rms at 0.5 m antenna separation
• <0.07° rms at 1.0 m antenna separation
• <0.047° rms at 1.5 m antenna separation
• <0.035° rms at 2.0 m antenna separation
• <0.028° rms at 2.5 m antenna separation

Environmental and Physical
• Weight: Approx. 900 grams
• Size: 170 x 121 x 41 mm
• Operating temperature: -20°C to +70°C
• Storage temperature: -30°C to +80°C
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