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RACELOGIC Support Centre

10 - VBOX Speed Sensor Technical Specification

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Specifications

VBSS25/VBSS100-V4G

Velocity

  25 Hz 100 Hz
Accuracy 0.1 km/h (averaged over 4 samples) 0.1 km/h (averaged over 4 samples)
Units km/h, mph, knots km/h, kph, knots
Update rate 25 Hz 100 Hz
Maximum Velocity 1600 mph 1600 mph
Minimum Velocity 0.1 km/h 0.1 km/h
Resolution 0.01 km/h 0.01 km/h
Latency 58 ms 8.5 ms ±1 or 15.5 ms with fixed CAN latency

Distance

  25 Hz 100 Hz
Accuracy 0.05 % (<50 cm per km) 0.05 % (<50 cm per km)
Units m / ft m / ft
Update rate 25 Hz 100 Hz
Resolution 1 cm 1 cm

Absolute Positioning

  25 Hz 100 Hz
Accuracy (Standalone) TBC V: 1.8 m; H: 1.2 m*

Accuracy with SBAS

TBC V: 1.2 m; H: 0.8 m*

Accuracy with DGPS

NA V: 0.5 m; H: 0.3 m*
Update rate 25 Hz 100 Hz
Resolution 1.8 mm 1.8 mm

* Specifications will vary depending on the number of satellites used, obstructions, satellite geometry (PDOP), multipath effects, and atmospheric conditions. For maximum system accuracy, always follow best practices for GNSS data collection.

Heading

  25 Hz 100 Hz
Resolution 0.01° 0.01°
Accuracy 0.1° 0.1°

Acceleration

  25 Hz 100 Hz
Accuracy 0.50 % 0.50 %
Maximum 20 g 20 g
Resolution 0.01 g 0.01 g

Brake stop Accuracy (Trigger Activated)

  25 Hz 100 Hz
Accuracy ±10 cm* ±1.8 cm*

* Based on <50 m brake stop distance

Physical

  25 Hz 100 Hz
Weight 250 g 250 g
Operating temp -30˚C to +70˚C -30˚C to +70˚C
Storage temp -40°C to +85°C -40°C to +85°C
Size 90 mm x 65 mm x 31.85 mm 140 mm x 92 mm x 31.85 mm
Connectors Deutsch ASDD Autosport  Deutsch ASDD Autosport 
IP rating IP66 IP66


 

 

CAN Output

Output Data Rate 125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s selectable baud rate. Software controlled CAN termination.
Data available  Position, vehicle speed, heading, lateral acceleration, longitudinal acceleration, satellite count, time, radius of turn, altitude, Distance from Trigger, Trigger Time, Trigger Velocity, True Heading. 

 

RS232 Output

Output Data Rate Dependent on unit type and mode
Data available  NMEA and RL Serial, dependent on unit type 

 

Analogue

Output data rate 0 – 5 V DC
Data available Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

 

Digital

Output data rate Low = 0 V, High = 5 V, Max. frequency 4.4 kHz
Data available Speed or Lap Beacon 

 

Inputs

Input Voltage range 7 – 30 V DC
Power 3.7 W Max (except 5 Hz option: 2 W Max)
GPS Antenna 3 V Active Antenna (inc) / 5 V for 100 Hz version
Digital Input Set Lap beacon Position / Brake Trigger Event
LED Power, Satellite Count,  Event Out

Dimensions

VBSS25 – 25 Hz 

 Speed Sensor Dimensions.PNG
25 Hz Speed Sensor

 

VBSS100 – 100 Hz 

Speed Sensor Dimensions Single Antenna V34.png
100 Hz Speed Sensor 

Discontinued VBOX Speed Sensors

VBSS05/VBSS10/VBSS20

Velocity

  5 Hz 10 Hz 20 Hz
Accuracy 0.1 km/h 0.1 km/h 0.1 km/h
Units km/h, mph, kts km/h, mph, kts km/h, mph, kts
Update rate 5 Hz 10 Hz 20 Hz
Maximum Velocity 1000 mph 1000 mph 1000 mph
Minimum Velocity 0.01 km/h 0.01 km/h 0.01 km/h
Resolution 0.01 km/h 0.01 km/h 0.01 km/h
Latency >160 ms 41.5 ms 41.5 ms

Distance

  5 Hz 10 Hz 20 Hz
Accuracy 0.05 % (<50 cm per km) 0.05 % (<50 cm per km) 0.05 % (<50 cm per km)
Units m / ft m / ft m / ft
Update rate 5 Hz 10 Hz 20 Hz
Resolution 1 cm 1 cm 1 cm

Absolute Positioning

  5 Hz 10 Hz 20 Hz
Accuracy 3 m* 3 m* 3 m*

Accuracy with SBAS DGPS
– Europe (EGNOS)

<1 m* <1 m* <1 m*

Accuracy with SBAS DGPS
– USA (WAAS) / ASIA (MSAS)

<1.8 m* <1.8 m* <1.8 m*

Accuracy with 
BaseStation RTCM DGPS

N/A 40 cm* 40 cm*

Accuracy with BaseStation DGPS + GPS upgrade (RLVBUP30)

N/A 20 cm* 20 cm*
Update rate 5 Hz 10 Hz 20 Hz
Resolution 1.8 cm 1.8 cm 1.8 cm
Height accuracy 10 m* 6 m* 6 m*
Height accuracy with DGPS N/A 2 m* 2 m*
 

Time

  5 Hz 10 Hz 20 Hz

 Accuracy

- Lap Timing (OLED) 

0.01 s** 0.01 s** 0.01 s**

Accuracy

Accel / Brake Test (MFD)

0.2 s 0.05 s 0.05 s
Resolution 0.01 s 0.01 s 0.01 s

Heading

  5 Hz 10 Hz 20 Hz
Resolution 0.01° 0.01° 0.01°
Accuracy 0.1° 0.1° 0.1°

Acceleration

  5 Hz 10 Hz 20 Hz
Accuracy 1.00 % 0.50 % 0.50 %
Maximum 4 g 20 g 20 g
Resolution 0.01 g 0.01 g 0.01 g

Brake stop Accuracy (Trigger Activated)

  5 Hz 10 Hz 20 Hz
Accuracy N/A ±20 cm*** ±10 cm***

Physical

  5 Hz 10 Hz 20 Hz
Weight 190 g 250 g 250 g
Operating temp -30˚C to +70˚C -30˚C to +70˚C -30˚C to +70˚C
Storage temp -40°C to +85°C -40°C to +85°C -40°C to +85°C
Size 90 mm x 65 mm x 31.85 mm 90 mm x 65 mm x 31.85 mm 90 mm x 65 mm x 31.85 mm
Connectors Deutsch ASDD Autosport  Deutsch ASDD Autosport  Deutsch ASDD Autosport 
IP rating IP66 IP66 IP66

 

Definitions

* Circle of Error Probable (CEP): 95 % of the time the position readings will fall within a circle of the stated diameter

** Not using DGPS and crossing the start/finish line at 100 km/h

*** Based on <50 m brake stop distance
 

 

CAN Output

Output Data Rate 125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s selectable baud rate. Software controlled CAN termination.
Data available  Position, vehicle speed, heading, lateral acceleration, longitudinal acceleration, satellite count, time, radius of turn, altitude, Distance from Trigger, Trigger Time, Trigger Velocity, True Heading. 

 

RS232 Output

Output Data Rate Dependent on unit type and mode
Data available  NMEA* and RL Serial, dependent on unit type (* NMEA output not available on 5 Hz unit)

 

Analogue

Output data rate 0 – 5 V DC
Data available Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

 

Digital

Output data rate Low = 0 V, High = 5 V, Max. frequency 4.4 kHz
Data available Speed or Lap Beacon 

 

Inputs

Input Voltage range 7 – 30 V DC
Power 3.7 W Max (except 5 Hz option: 2 W Max)
GPS Antenna 3 V Active Antenna (inc) / 5 V for 100 Hz version
Digital Input Set Lap beacon Position / Brake Trigger Event
LED Power, Satellite Count,  Event Out

Dimensions

5 Hz, 10 Hz and 20 Hz 

 Speed Sensor Dimensions.PNG
5 Hz, 10 Hz and 20 Hz Speed Sensor

VBOX Dual Antenna Speed Sensor – VBSS100SL

Specifications

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 6.75 ms

 

Distance

Accuracy 0.05% (>50 cm per km)
Units m / ft
Update rate 100 Hz
Resolution 1 cm

 

Time

Accuracy 0.01 s
Resolution 0.01 s

 

Absolute Positioning

Accuracy 3 m (95 % CEP*)
Accuracy with SBAS DGPS >1 m (95 % CEP*)
Accuracy with RTCMV2 DGPS 80 cm (95 % CEP*)
Accuracy with RTK DGPS*** 2 cm (95 % CEP*)
Resolution 1.8 mm
Update Rate 100 Hz
Height Accuracy 6 m (95% CEP*)
Height Accuracy with DGPS 2 m (95% CEP*)

 

Acceleration

Accuracy 0.5 %
Maximum 20 g
Resolution 0.01 g
Update Rate 100 Hz

 

Heading

Accuracy 0.1°
Resolution 0.01°

 

Brake Stop Accuracy (Trigger activated)

Accuracy +/- 1.8 cm**

 

Note: Channels highlighted in Blue are for SL series units only.

Slip Angle Accuracies

Pitch and Roll Angle Accuracies

<0.2° rms at 0.5m antenna separation <0.14° rms at 0.5m antenna separation
<0.1° rms at 1.0m antenna separation <0.07° rms at 1.0m antenna separation
<0.05° rms at 2.0m antenna separation <0.035° rms at 2.0m antenna separation
<0.04° rms at 2.5m antenna separation <0.028° rms at 2.5m antenna separation


Definitions

* Circle of Error Probable (CEP): 95 % of the time the position readings will fall within a circle of the stated diameter

** Based on <50 m brake stop distance
 

 

CAN Output

Output data rate 125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s selectable baud rate. Software controlled CAN termination.
Data available  Position, vehicle speed, heading, lateral acceleration, longitudinal acceleration, satellite count, time, radius of turn, altitude, Distance from Trigger, Trigger Time, Trigger Velocity, True Heading. Slip angle, Yaw rate, Pitch/Roll angle, Longitudinal and Lateral Velocity

 

RS232 Output

Output data rate Up to 100 Hz
Data available NMEA or RL Serial

 

Analogue

Output data rate 0 – 5 V DC
Data available Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

 

Digital

Output data rate Low = 0 V, High = 5 V, Max. frequency 4.4 kHz
Data available Speed or Lap Beacon 

 

Inputs

Input Voltage range 1st Gen = 6.5 – 30 VDC  / 2nd Gen = 7 – 30 V DC
Power 3.7 W (maximum)
GPS Antenna 5 V Active Antenna (inc)
Digital Input Cold Start Activate / Set Lap beacon Position
LED Power, Satellite Count,  Event Out

 

Environmental and physical

Weight Approx 250 g
Size 140 mm x 92 mm x 31.85 mm
Operating Temperature -30°C to +70°C
Storage Temperature -40°C to +85°C
Connectors Deutsch ASDD Autosport; Rated IP66 

Dimensions

V2

Speed Sensor Dimensions Dual Antenna V2.png
100 Hz Dual Antenna Speed Sensor (V2)

V3/4

Speed Sensor Dimensions Dual Antenna V34.png
100 Hz Dual Antenna Speed Sensor (V3 and V4)