Construction machine and control method thereof
AssigneeHd Hyundai Infracore Co., Ltd.
InventorsSunghoon LEE, Yoonkyu YOO, Wonsun SOHN, Wooyong JUNG
Life of this patent
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Abstract
Embodiments of the present disclosure relate to a construction machine and a control method thereof. The construction machine includes an engine that generates power, a pump driven by the engine, an engine control unit that detects an intake air volume of the engine, a joystick that transmits an operation signal, and a vehicle control unit that receives the intake air volume detected by the engine control unit when the operation signal is received from the joystick, and that upwardly changes an increase rate of a pump torque of the pump when the intake air volume is at a certain level.
Claims12
A construction machine comprising:
- an engine that generates power;
- a pump driven by the engine;
- an engine control unit that detects an intake air volume of the engine;
- a joystick that transmits an operation signal;
- and
- a vehicle control unit that receives the intake air volume detected by the engine control unit when the operation signal is transmitted from the joystick, and that upwardly changes an increase rate of a pump torque when the intake air volume is at a certain level.
A construction machine comprising:
- an engine that generates power;
- a pump driven by the engine;
- an engine control unit that detects information on an intake air volume of the engine and a rotation speed of the engine;
- a joystick that operates a work machine;
- and
- a vehicle control unit that determines a continuous operation of the construction machine, based on the information on the intake air volume of the engine, when an operation signal is transmitted from the joystick, and that upwardly changes an increase rate of a pump torque of the pump, based on the intake air volume and a rotation speed of the engine.
A control method of a construction machine including a vehicle control unit for controlling a pump driven by an engine, the control method comprising:
- a step of receiving an operation signal of a joystick;
- a step of receiving intake air pressure information of the engine and rotation speed information of the engine;
- and
- a step of controlling the pump by changing a slope of a pump torque having an inflection point according to a preset rotation speed of the engine to an inflection point of the slope of the pump torque mapped based on the intake air pressure information of the engine.
Dependencies are inferred from the claim text.