APPARATUS AND METHOD FOR CONTROLLING OIL HYDRAULIC PUMP FOR EXCAVATOR
First Claim
1. An apparatus for controlling a hydraulic pump for an excavator, comprising:
- an operating unit configured to generate an operation signal according to an operation of an operator, and including a joystick or a pedal;
an oil flow supplying unit configured to supply oil to actuators, in order to drive a plurality of actuators corresponding to the operation signal, and including a plurality of pumps and a plurality of logic valves; and
a control unit configured to control the oil flow supplying unit by using a priority algorithm for each operation considering a use frequency and a load of the actuator with respect to a change of a predetermined operation mode according to the operation signal.
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0 Petitions
Accused Products
Abstract
An exemplary embodiment of the present specification relates to an apparatus for controlling a hydraulic pump for an excavator with respect to a change of an operation mode, the apparatus including: an operating unit configured to generate an operation signal according to an operation of an operator, and including a joystick or a pedal; an oil flow supplying unit configured to supply oil to actuators, in order to drive a plurality of actuators corresponding to the operation signal, and including a plurality of pumps and a plurality of logic valves; and a control unit configured to control the oil flow supplying unit by using a priority algorithm for each operation considering a use frequency and a load of the actuator with respect to a change of a predetermined operation mode according to the operation signal.
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Citations
10 Claims
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1. An apparatus for controlling a hydraulic pump for an excavator, comprising:
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an operating unit configured to generate an operation signal according to an operation of an operator, and including a joystick or a pedal; an oil flow supplying unit configured to supply oil to actuators, in order to drive a plurality of actuators corresponding to the operation signal, and including a plurality of pumps and a plurality of logic valves; and a control unit configured to control the oil flow supplying unit by using a priority algorithm for each operation considering a use frequency and a load of the actuator with respect to a change of a predetermined operation mode according to the operation signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a hydraulic pump for an excavator with respect to a change of an operation mode according to an operation signal, the method comprising:
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checking whether an operation signal corresponding to a travelling device is input, and preferentially assigning two pumps to the travelling device when the operation signal corresponding to the travelling device is input; checking whether an operation signal corresponding to an auxiliary device is input, and when the operation signal corresponding to the auxiliary device is input, assigning one pump to the auxiliary device; checking whether an operation signal corresponding to a swing is input, and when the operation signal corresponding to the swing is input, assigning one pump to the swing; checking whether an operation signal corresponding to a boom is input and when the operation signal corresponding to the boom is input, assigning two pumps to the boom when the number of actuators, which are required to be driven, is smaller than the number of total pumps, and assigning one pump to the boom when the number of actuators, which are required to be driven, is larger than or equal to the number of total pumps; checking whether an operation signal corresponding to an arm is input and when the operation signal corresponding to the arm is input, assigning two pumps to the arm when the number of actuators, which are required to be driven, is smaller than the number of total pumps, and assigning one pump to the arm when the number of actuators, which are required to be driven, is larger than or equal to the number of total pumps; and checking whether an operation signal corresponding to a bucket is input and when the operation signal corresponding to the bucket is input, assigning one pump to the bucket. - View Dependent Claims (10)
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Specification