Axle load monitoring

1. GNOM DP Installation
Documents
GNOM DP
Features and characteristics
Purpose of use and application
Minsk, Belarus
www.jv-technoton.com
FUEL MONITORING EXPERT
Axle load sensor
GNOM DDE
Features and characteristics
GNOM DDE Installation

2. Purpose of use and application/
cargo weight monitoring
Fleet operator can monitor carried cargo weight of vehicles equipped with axle
load sensors.
Mounting sensor on each axle of the vehicle is not always possible from technical
point of view and is not economically feasible. Front axle load which is created by the
weight of the driver's cabin and vehicle engine is insignificant comparing with rear
axle (rear bogie) load created by the weight of the vehicle body (loading platform)
and carried cargo. That is why a single sensor should be mounted on the most
loaded axle.
The most loaded axle of two-axial vehicles is the rear one. The rear bogie is most
loaded on three-axial vehicles.
FUEL MONITORING EXPERT
Axle load sensor

3. Purpose of use and application FUEL MONITORING EXPERT
Axle load sensor

4. Purpose of use and application FUEL MONITORING EXPERT
Axle load sensor
Axle load sensor is used to determine the axle load in vehicles equipped with air
suspension (GNOM DDE) or leaf spring suspention (GNOM DP) in transport
telematics systems.
Satellite
navigation
data
Vehicle
tracking
device
Voltage
output signal
Vehicle
reports
GSM/GPRS
User PC
Reports and
operational
data
Internet
Telematics
server
GPS/GLONASS
Pressure sensor
DPPosition sensor
or

5. GNOM DP features and characteristics/
structure and operation principle
FUEL MONITORING EXPERT
Axle load sensor
GNOM DP operation principle is based on transformation of sensor lever rotation
angle into output voltage. Magnetoresistive sensing element is used as a
transducer. The output of the sensor generates stabilized analog voltage signal.
Voltage signal depends on the position of the sensor lever (rotation angle) which
varies according to axle load of the vehicle.
Mounting
bracket
Power supply
connector
Measuring head with
angle shift transducer
Pivot lever

6. GNOM DP features and characteristics/
key features
FUEL MONITORING EXPERT
Axle load sensor
џ mounting on vehicles with leaf spring suspension;
џ compliance with national and European automobile standards for
electromagnetic compatibility, resistance to climatic and mechanical stress;
џ linear characteristic of the output signal;
џ built-in power supply stabilizer — output signal does not depend on supply
voltage;
џ short-circuit and reverse polarity protection;
џ construction with no friction elements for better wear resistance of the sensor.

7. GNOM DP features and characteristics/
example of data
FUEL MONITORING EXPERT
Axle load sensor
Garbage truck

8. GNOM DP installation FUEL MONITORING EXPERT
Axle load sensor
DP should be mounted on the
most loaded axle. Adjust the
length of the lever (L) and the
height of the rod (H) by
experiment. Sensor and MK
DP elements should be
mounted so that lever
rotation angle range includes
the whole suspension travel of
the vehicle (Δ).

9. GNOM DP installation/
mounting kit GNOM MK DP
FUEL MONITORING EXPERT
Axle load sensor
Mounting kit GNOM MK DP is used for DP mounting on two-axial and three–axial
vehicles with leaf spring suspension. MK DP contains only high-quality
components designed for mounting on vehicles.

10. GNOM DP installation/ two-axial vehicle FUEL MONITORING EXPERT
Axle load sensor

11. GNOM DP installation/ three-axial vehicle FUEL MONITORING EXPERT
Axle load sensor

12. GNOM DP installation/
Examples (two-axles 4x2)
FUEL MONITORING EXPERT
Axle load sensor
1. Elastic element is mounted in the same plane as the pivoted lever
of the sensor.
2. Elastic element is perpendicular to the pivoted lever of the sensor.

13. GNOM DP installation/
Examples (three-axles 6x4)
FUEL MONITORING EXPERT
Axle load sensor
1. Fixing the sensor to the vehicle frame with bolts
2. Fixing the sensor to the frame with spot welding

14. GNOM DDE features and charecteristics/
structure and operation principle
FUEL MONITORING EXPERT
Axle load sensor
GNOM DDE operation principle is based on transformation of compressed air
pressure into output voltage. Tensoresistive bridge is used as a transducer. The
output of the sensor generates stabilized analog voltage signal. Voltage signal
varies depending on pressure in the vehicle air suspension circuit coming through
the inlet thread fitting to the transducer.
Mounting nut
Inlet thread
fitting
Cable connector
Pressure
transducer

15. GNOM DDE features and charecteristics/
key features
FUEL MONITORING EXPERT
Axle load sensor
џ compliance with national and European automobile standards for
electromagnetic compatibility, resistance to climatic and mechanical stress;
џ linear characteristic of the output signal;
џ built-in power supply stabilizer — output does not depend on supply voltage;
џ short-circuit and reverse polarity protection.

16. GNOM DDE features/example of data FUEL MONITORING EXPERT
Axle load sensor
Freight truck

17. GNOM DDE installation/
mounting kit GNOM MK DDE
FUEL MONITORING EXPERT
Axle load sensor
Mounting kit GNOM DDE is used for DDE sensor mounting into air suspension in
following cases:
џ mounting of DDE into M22x1.5 thread hole with the resumption of compressed
air supply pipeline;
џ DDE mounting into gap of Ø=8 mm pipeline (compressed air supply pipe);
џ DDE mounting into Ø=8 mm supply pipeline fitting.
MK DDE contains only high-quality
components specially designed for
use in vehicle air suspension system.

18. GNOM DDE installation/the first variant FUEL MONITORING EXPERT
Axle load sensor
Installation into standard opening of the main air supply line vehicle's
air suspension system.
The sensor should be installed instead of plug-bolt under thread M16x1,5 or
through the transition nut M22x1,5 according to the mounting scheme #1.
Plug bolt

19. GNOM DDE installation/the second variant FUEL MONITORING EXPERT
Axle load sensor
Installation into the junction of the main air supply line vehicle's air suspension
system.
The sensor can be installed in the hole М22x1,5 with the continuation of the
pneumatic system according to the mounting scheme #2.
T splitter

20. GNOM DDE installation/the third and
the fourth variant
FUEL MONITORING EXPERT
Axle load sensor
GNOM DDE DDE is mounted
into the cut of Ø=8mm
suspension supply
pipeline according to the
mounting scheme #3.
The sensor can be installed
into Ø=8mm supply pipeline
fitting according to the
mounting scheme #4.

21. Configuration methods FUEL MONITORING EXPERT
Axle load sensor
Loading of given weights (pieces of known weight)
Weighing with axle weighing scales
the most loaded axle of loaded vehicle with
unknown weight; with such calibration the
system won’t be able to process load weight.
the whole vehicle loaded with unknown weight.
Load weight = Total weight of loaded pieces
Load weight = Weight of fully loaded vehicle - Weight of empty vehicle