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11 - Speed Sensor (VBSSxx) Technical Specification

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Specifications
  5Hz 10Hz 20Hz 100Hz
         
Velocity  
Accuracy 0.1 Km/h 0.1 Km/h 0.1 Km/h 0.1 Km/h
Units Km/h, Mph, Knots Km/h, Mph, Knots Km/h, Mph, Knots Km/h, Mph, Knots
Update rate 5 Hz 10 Hz 20 Hz 100 Hz
Maximum Velocity 1000 Mph 1000 Mph 1000 Mph 1000 Mph
Minimum Velocity 0.1 Km/h 0.1 Km/h 0.1 Km/h 0.1 Km/h
Resolution 0.01 Km/h 0.01 Km/h 0.01 Km/h 0.01 Km/h
Latency >160ms 41.5ms 41.5ms 6.75ms
Distance
Accuracy 0.05% (<50cm per Km) 0.05% (<50cm per Km) 0.05% (<50cm per Km) 0.05% (<50cm per Km)
Units Metres / Feet Metres / Feet Metres / Feet Metres / Feet
Update rate 5 Hz 10 Hz 20 Hz 100 Hz
Resolution 1cm 1cm 1cm 1cm
Absolute Positioning
Accuracy 3m* 3m* 3m* 3m*
Accuracy with SBAS DGPS
-Europe (EGNOS) <1m* <1m* <1m* <1m*
-USA (WAAS) / ASIA (MSAS) <1.8m* <1.8m* <1.8m* <1.8m*
Accuracy with BaseStation RTCM DGPS N/A 40cm* 40cm* 80cm*

Accuracy with BaseStation DGPS + GPS upgrade (RLVBUP30)

N/A 20cm* 20cm* N/A
Update rate 5 Hz 10 Hz 20 Hz 100 Hz
Resolution 1.8 cm 1.8 cm 1.8 cm 1.8 cm
Height accuracy 10 Metres* 6 Metres* 6 Metres* 6 Metres*
Height accuracy with DGPS N/A 2 Metres* 2 Metres* 2 Metres*
Time
Accuracy
- Lap Timing (OLED): 0.01 s** 0.01 s** 0.01 s** 0.01 s**
Accel / Brake Test (MFD): 0.2 s 0.05 s 0.05 s 0.01 s

Resolution

0.01 s 0.01 s 0.01 s 0.01 s
Heading
Resolution 0.01° 0.01° 0.01° 0.01°
Accuracy 0.1° 0.1° 0.1° 0.1°
Acceleration
Accuracy 1.00% 0.50% 0.50% 0.50%
Maximum 4 G 20 G 20 G 20 G
Resolution 0.01 G 0.01 G 0.01 G 0.01 G
Brake stop Accuracy (Trigger Activated)
Accuracy N/A ±20cm*** ±10cm*** ±1.8 cm***
Physical
Weight 190g 250g 250g 250g
Operating temp -30˚C to +70˚C -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 -40°C to +85°C
Size 90x65x31.85mm 90x65x31.85mm 90x65x31.85mm 140x92x31.85mm
Connectors Deutsch ASDD Autosport  Deutsch ASDD Autosport  Deutsch ASDD Autosport  Deutsch ASDD Autosport 
IP rating IP66 IP66 IP66 IP66

 

Definitions      

* CEP = Circle of Error Probable

  95% CEP (Circle Error Probable) means 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 100km/h.

*** Based on <50m brake stop distance

CAN Output
Output Data Rate 125Kbit, 250Kbit, 500Kbit & 1Mbit 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 5Hz unit)
Analogue Digital

Output data rate

0V to 5V DC

Output data rate

Low = 0v, High = 5v, Max. frequency 4.4Khz
Data available

Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

Data available Speed or Lap Beacon 

 

Inputs
Input Voltage range 7v – 30v DC
Power 3.7w Max (except 5Hz option: 2w Max)
GPS Antenna 3V Active Antenna (inc) / 5V for 100Hz version
Digital Input Set Lap beacon Position / Brake Trigger Event
LED Power, Satellite Count,  Event Out
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Last modified
17:29, 15 Nov 2016

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