526
loader [9], however, it was done using hydraulic oil pressure signal (Hyd_Oil_P). Unfortunately,
we may adjudge, that after a couple of years of experience, there is a need to increase reliability/
robustness of the procedure and end-user suggested to use data other than pressure signal (as
the pressure sensor is sensitive and often is broken due to very harsh conditions). In the paper,
we will propose a methodology for informative signals selection for the defined task (i.e. estimation of a number of cycles). First, we briefly describe the monitoring system used in haul truck
and present exemplary data set for 1 shift. Then a proposed methodology will be presented and
applied to 3 days data set from the haul truck monitoring system.
2 ON-BOARD MONITORING SYSTEM DESCRIPTION
2.1 Machine description
The machine used in the experiment is a haul truck CB4-20TB produced by KGHM ZANAM.
Basic parameters of the truck are: Lenght:10 300 mm, Width: 3 350 mm, Height (cabin in
position): 1900/2000/2100 mm, Total weight: 26000 kg, Box capacity: 11,1 m
3 , Nominal payload: 20,0 t, Power rating: 149 kW, Driving speed: up to 20 km/h. Photo of the machine is
shown in Fig. 1.
2.2 Monitoring system description
According to the standard of data monitoring for LHD machines [10] developed in the frame
of internal KGHM Group project, there is a list of parameters measured on the machine.
Figure 1. Photo of investigated Haul Truck machine.
Table 1. A list of monitored parameters for haul truck.
Variable name
Description
‘BREAKP’
breaking pressure
‘ENGCOOLT’
temperature of the cooling liquid of the internal combustion engine
‘ENGHOURS’
number of operating hours of the internal combustion engine cumulatively
‘ENGOILP’
oil pressure of the internal combustion engine
‘ENGRPM’
engine speed
‘ENGTPS’
deflection of the gas pedal
‘FUELUS’
instant fuel consumption
‘GROILP’
Transmission oil pressure
‘GROILT’
oil temperature of transmission and torque converter
‘HYDDRV’
attached additional hub drive
‘HYDOILP’
pressure in the hydraulic system
‘HYDOILT’
hydraulic oil temperature
‘INTAKEP’
engine boost pressure
‘INTAKET’
air temperature at the engine’s intake
‘SELGEAR’
direction and current gear
‘SPEED’
average speed every 1 s
‘SWITCHMOVE’
switching the direction of travel under load
‘TRNBPS’
position of the brake pedal; 0–100%
‘TRNLUP’
lock up on/of
loader [9], however, it was done using hydraulic oil pressure signal (Hyd_Oil_P). Unfortunately,
we may adjudge, that after a couple of years of experience, there is a need to increase reliability/
robustness of the procedure and end-user suggested to use data other than pressure signal (as
the pressure sensor is sensitive and often is broken due to very harsh conditions). In the paper,
we will propose a methodology for informative signals selection for the defined task (i.e. estimation of a number of cycles). First, we briefly describe the monitoring system used in haul truck
and present exemplary data set for 1 shift. Then a proposed methodology will be presented and
applied to 3 days data set from the haul truck monitoring system.
2 ON-BOARD MONITORING SYSTEM DESCRIPTION
2.1 Machine description
The machine used in the experiment is a haul truck CB4-20TB produced by KGHM ZANAM.
Basic parameters of the truck are: Lenght:10 300 mm, Width: 3 350 mm, Height (cabin in
position): 1900/2000/2100 mm, Total weight: 26000 kg, Box capacity: 11,1 m
3 , Nominal payload: 20,0 t, Power rating: 149 kW, Driving speed: up to 20 km/h. Photo of the machine is
shown in Fig. 1.
2.2 Monitoring system description
According to the standard of data monitoring for LHD machines [10] developed in the frame
of internal KGHM Group project, there is a list of parameters measured on the machine.
Figure 1. Photo of investigated Haul Truck machine.
Table 1. A list of monitored parameters for haul truck.
Variable name
Description
‘BREAKP’
breaking pressure
‘ENGCOOLT’
temperature of the cooling liquid of the internal combustion engine
‘ENGHOURS’
number of operating hours of the internal combustion engine cumulatively
‘ENGOILP’
oil pressure of the internal combustion engine
‘ENGRPM’
engine speed
‘ENGTPS’
deflection of the gas pedal
‘FUELUS’
instant fuel consumption
‘GROILP’
Transmission oil pressure
‘GROILT’
oil temperature of transmission and torque converter
‘HYDDRV’
attached additional hub drive
‘HYDOILP’
pressure in the hydraulic system
‘HYDOILT’
hydraulic oil temperature
‘INTAKEP’
engine boost pressure
‘INTAKET’
air temperature at the engine’s intake
‘SELGEAR’
direction and current gear
‘SPEED’
average speed every 1 s
‘SWITCHMOVE’
switching the direction of travel under load
‘TRNBPS’
position of the brake pedal; 0–100%
‘TRNLUP’
lock up on/of