Shovel and method of controlling shovel
AssigneeSumitomo(S.H.I.) Construction Machinery Co., Ltd.
InventorJitsutaka TAKEO
Life of this patent
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Abstract
A shovel includes a lower-part movable body, an upper-part turnable body turnably mounted on the lower-part movable body, a boom including a first end rotatably attached onto the upper-part turnable body, an arm including a first end rotatably attached to a second end of the boom, a work element rotatably attached to a second end of the arm, an electrical energy storage device including multiple electrical energy storage cells, and mounted on the upper-part turnable body, a controller configured to control the charge and discharge of the electrical energy storage device, and multiple voltage measurement parts configured to measure the respective cell voltages of the electrical energy storage cells. Information on the cell voltages is transmitted to the controller.
Claims18
A shovel, comprising:
- a lower-part movable body;
- an upper-part turnable body turnably mounted on the lower-part movable body;
- a boom including a first end rotatably attached onto the upper-part turnable body;
- an arm including a first end rotatably attached to a second end of the boom;
- a work element rotatably attached to a second end of the arm;
- an electrical energy storage device including a plurality of electrical energy storage cells, and mounted on the upper-part turnable body;
- a controller configured to control a charge and a discharge of the electrical energy storage device;
- and
- a plurality of voltage measurement parts configured to measure respective cell voltages of the plurality of electrical energy storage cells,
- wherein information on the cell voltages is transmitted to the controller.
A method of controlling a shovel, the shovel including a lower-part movable body, an upper-part turnable body turnably mounted on the lower-part movable body, a boom including a first end rotatably attached onto the upper-part turnable body, an arm including a first end rotatably attached to a second end of the boom, a work element rotatably attached to a second end of the arm, an electrical energy storage device including a plurality of electrical energy storage cells, and mounted on the upper-part turnable body, a controller configured to control a charge and a discharge of the electrical energy storage device, and a plurality of voltage measurement parts configured to measure respective cell voltages of the plurality of electrical energy storage cells, the method comprising:
- transmitting information on the cell voltages to the controller.
Dependencies are inferred from the claim text.