Work machine and method for controlling work machine
AssigneeKomatsu Ltd.
InventorKazumichi Okajima
Life of this patent
Estimating the term…
Abstract
Provided is a work machine capable of realizing control for securing cooling capacity of a cooling fan. The work machine includes a power feeding device, a plurality of electric devices driven by power supply from the power feeding device, a sensor that detects consumption current of the electric devices, a cooling fan that is driven by power supply from the power feeding device and generates a flow of air, and a controller that controls the cooling fan. The electric device includes a first device provided with the sensor. The controller determines whether a sum of a consumption current of the electric device including a consumption current of the first device detected by the sensor and a consumption current of the cooling fan exceeds an output current of the power feeding device.
Claims6
A work machine comprising:
- a power feeding device;
- a plurality of electric devices driven by power supply from the power feeding device;
- a sensor that detects consumption current of the electric device;
- a cooling fan that is driven by power supply from the power feeding device and generates a flow of air;
- a heating source that generates heat and is cooled by the cooling fan;
- and
- a controller that controls the cooling fan,
- wherein the electric device includes a first device in which the sensor is provided,
- the controller determines whether a sum of a consumption current of the electric device, including a consumption current of the first device detected by the sensor and a consumption current of the cooling fan, exceeds an output current of the power feeding device, and
- the controller limits output of the heating source in a case where the sum of the consumption current of the electric device and the consumption current of the cooling fan exceeds the output current of the power feeding device as a result of the determination.
A method for controlling a work machine, the work machine including:
- a power feeding device;
- a plurality of electric devices driven by power supply from the power feeding device;
- a sensor that detects consumption current of the electric device;
- a cooling fan that is driven by power supply from the power feeding device and generates a flow of air;
- and
- a heating source that generates heat and is cooled by the cooling fan,
- wherein the electric device includes a first device in which the sensor is provided,
- the method comprising:
- detecting a consumption current of the first device by the sensor;
- calculating a sum of a consumption current of the electric device including the consumption current of the first device detected by the sensor and a consumption current of the cooling fan;
- determining whether the calculated sum of the consumption currents exceeds an output current of the power feeding device;
- and
- limiting output of the heating source in a case where the sum of the consumption current of the electric device and the consumption current of the cooling fan exceeds the output current of the power feeding device as a result of the determination.
Dependencies are inferred from the claim text.