SBUC Application Example Excavators
SBUC with load limiting control functions
SBUC controls loading of the excavator's diesel engine for:
— reduction of fuel consumption;
— power management between diesel motor and hydraulics;
— automatic protection of the diesel engine.
Functionality
— motor speed contol by management of fuel injection pump and productivity of hydraulic pumps;
— management of the fuel injection pump lever on controller commands;
— simplification of start and engine warming-up at a low ambient temperature;
— automatic switching in idle mode at pauses in excavator work;
— protection diesel motor from overload and overheating of engine coolant;
— protection excavator hydrosystem from overload and overheating of hydraulic fluid.
Example of a complete set of SBUC system for excavators
— SBUC SM4 controller;
— mode control panel;
— electromechanical actuator for management of diesel fuel injection pump (for diesel engines with mechanical fuel supply system);
— variable displacement pumps;
— hydraulic oil temparature sensor;
— two hyfraulic pressure transducers;
— set of cables.
The block schematic of SBUC for engines with mechanical fuel supply system
The modes of operation are set from the control panel, which is established in a excavator cabin.
The control panel contains the switch, which allows to disconnect or to choose the mode of operation with engine loading for 75%, 88%,100% and idling.
Control Panel
Values of parameters are set by the software and can be changed at the customer's request.
Technical Data
, |
10 32 |
|
, 75, 88 100% |
: |
|
|
95±5 |
|
10 |
|
2 |
|
±1 |
, : |
|
|
±3 |
|
±3 |
|
±0,1 |
|
±2 |
, % |
5 |
14254: |
IP40 |
|
|
|
50 |
|
50 200 |
, /2, |
100 |
, , : |
105 × 85 × 79 |
, , : |
0,3 |