Kobelco Construction Machinery Co., Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

Hideki Kinugawa

Masayuki Komiyama

Masayuki Kagoshima

Tomohiko Asakage

Norihiko Hayashi

Hirokazu Araya

Eiji Takahashi

Hideaki Yoshimatsu

Takahiro Kobayashi

Kazuhiko Fujii

Hiroshi Togo

Kiyotsuna Kuchiki

Hisashi Kadowaki

Atsushi Onishi

Naotake Numata

Naoki Tamura

Nobuhiro Shirasawa

Hiroshi Narazaki

Takanari Shirasaka

After a remote control valve has been brought into a non-working state, a stop signal is to be sent from an engine controller in a controller to a governor controller in an engine to stop the engine automatically, under the condition that an illuminating lamp is turned off, after a preset allowance time has passed and when a gate lever provided at a gateway for an operator is opened (the operator gets off the machine). Further, before the engine is stopped, the operator is to be notified of the coming engine stop, and when the engine is stopped, a power supply is to be cut off automatically.

Construction machinery

This invention relates to a method for carrying out, using control means capable of gathering operating information of one or more construction machines to be rented to one or more renters, a service to renters according to the operating information, wherein the control means calculates the point number for service for giving back the profit to the renters on the basis of an evaluation standard preset with respect to the construction machines from the operating information, and totals the point number calculated every renter to present it.

Method, apparatus and system for doing rental service of construction machine

A wireless terminal mounted on a traveling apparatus memorizes operation data on the traveling apparatus, determines possibility of transmitting the operation data based on the electric field intensity of beacon, existence of operation data which has not been transmitted to a base station apparatus, an elapsed time after a switch of the mode (storage wait mode/delivery wait mode) of the wireless terminal, a planned storage date, and the like, and transmits a response to the beacon transmitted from the base station apparatus and operation data if the transmission is possible. When the transmission of the operation data has been completed, the wireless terminal is set to the delivery wait mode, and is switched to a state of waiting for delivery beacon transmitted from the base station apparatus to the wireless terminal waiting for delivery. When the delivery beacon is received, it is switched to the storage wait mode.

Wireless data collecting system having transmission possibility determining means

A power control device for a construction machine of the present invention is characterized by including an engine, an actuator adapted to be driven with power of the engine, an engine controller for stopping the engine automatically when it is not necessary to drive the actuator, and an air conditioner for conditioning the air in an interior of a cab of the construction machine, and in which when an air conditioner operation detecting unit detects that the air conditioner is in operation and even when an engine power necessity determining unit determines that the power of the engine is not necessary, automatic stop of the engine by the engine controller is prevented.

Power control device for construction machine

To enable positive management of construction machines in a management center. There comprises an construction machine, and a management apparatusfor carrying out the transmission and reception of information with the construction machinethrough a communication satelliteand a base station. The construction machinecomprises a memoryfor storing operating information, information amount discrimination meansto discriminate if the operating information stored in the memoryreaches a fixed amount, information readout meansfor reading out the operating information when the operating information stored in the memoryreaches the fixed amount, and a transmission sectionfor transmitting the operating information read out. The management apparatuscomprises a reception sectionfor receiving the operating information transmitted from the construction machine, a memoryfor storing the operating information received, and data processing meansfor carrying out data processing relative to the operating information.

Management system for construction machines

The present invention provides an operating information control system of a construction machine comprising: operating information collection device for collecting operating information regarding operation of a construction machine; storage device for storing the operating information; and transmission controller for transmitting the operating information read from the storage device to a first receiving device provided except the construction machine through a wireless radio, the transmission controller capable of transmitting the operating information to the first receiving device when receiving a transmission request from outside of the construction machine, or continuously for a predetermined period. Thereby, since the operating information of the construction machine is transmitted making use of a low power wireless radio without using a communication satellite or a public circuit network, lots of communication cost can be reduced.

System for controlling operating information of construction machine and construction machine therefor

The present invention provides a method for displaying an operation status of a construction machine by sensing operating information of the construction machine by means of a coolant water sensor and the like, sending the operating information to a control computer while the control computer receives the operating information which has been sent from the construction machine, determines whether the construction machine is in operation or not based on the received operating information, and displays the result of judgment on a monitor screen, so that the current operation status of the construction machine can be known easily.

Method and apparatus for displaying operation status of construction machine, and construction machine therefor

An excavator in which a generator is driven by an engine as a power source. Electric motors are driven by electric power supplied from the generator, and a lower traveling body, an upper turning body, and operating parts of an excavation attachment are operated by the electric motors.

Shovel

A working machine, such as an excavator, provided with a condenser, capable of satisfying condensing conditions required for various works, while minimizing the condensers and maintaining a light-weight. The working machine includes a generator and at a an electrically-operated actuator for generating power for operating a work member by electric power generated by the generator. Further, as for charging-discharging electric power, a plurality of kinds of condensers are provided, and the condensers used are selectively switched according to power required, work contents, or the like.

Capacitor-equipped working machine

The control apparatus for a hydraulic excavator according to the present invention comprises: an operating amount sensor for detecting operating amounts of operating levers; a characteristic amount extraction portion for operating the characteristic amounts on the basis of the operating amount; a membership function memory portion for storing a plurality of membership functions; a fitness operation portion for operating fitnesses with respect to works for the characteristic amounts by applying the operated characteristic amounts to the membership functions; an operating characteristic set value memory portion for storing preset operating characteristic set values; and an operating characteristic operation portion for outputting the operating characteristic for controlling a hydraulic excavator on the basis of the fitnesses operated corresponding to a plurality of kinds of work and the stored operating characteristic set values. Therefore, the operating characteristic of the hydraulic excavator can be enhanced.

Control apparatus for a hydraulic excavator

To enable positive management of construction machines in a management center. There comprises an construction machine , and a management apparatus for carrying out the transmission and reception of information with the construction machine through a communication satellite and a base station . The construction machine comprises a memory for storing operating information, information amount discrimination means to discriminate if the operating information stored in the memory reaches a fixed amount, information readout means for reading out the operating information when the operating information stored in the memory reaches the fixed amount, and a transmission section for transmitting the operating information read out. The management apparatus comprises a reception section for receiving the operating information transmitted from the construction machine , a memory for storing the operating information received, and data processing means for carrying out data processing relative to the operating information.

It is intended to keep low the moment of inertia of a boom, etc. and maintain the whole of a working machine in good weight balance. At the same time, a highly efficient recovery of energy is to be attained to increase a continuous working time of a battery. A battery-powered working machine using a battery as a power source is provided. Rotation of a rotatable superstructure,and rising and falling motions of a boom,are performed directly by electric motors,and,. The recovery of energy is attained by utilizing the electric motors,and,. An arm,and a bucket,both located remote from a centroid position of the machine are actuated by an arm cylinder,and a bucket cylinder,, which are hydraulic actuators less heavy than electric motors. Further, a hydraulic pump,for supplying those hydraulic actuators with a hydraulic oil is actuated by a hydraulic pump actuating electric motor,which utilizes the battery,as a power source.

Battery-powered working machine

There are provided an electric motor driven by (electric) power from a battery; a hydraulic pump driven by the electric motor; a hydraulic motor driven by operating oil discharged from the hydraulic pump; an operating member for performing a predetermined operation by the drive of the hydraulic motor; and operating levers for operating the operating member by switching a flow and a shut-off of the operating oil discharged from the hydraulic pump. The operating levers are operatable between a neutral position at which the hydraulic motor stops operation and an operating position at which the hydraulic motor operates. An accel-trimmer is provided to adjust the supply amount of power from the battery to the electric motor in the state where the operating levers are operated to the operating position.

Battery-driven hydraulic excavator

A control apparatus for a hydraulic excavator is capable of carrying out precise operations according to various kinds of classifications of works without requiring switching operations by an operator and management according to work records. The apparatus includes a classification of work discriminating section for recognizing a classification of work being carried out by the hydraulic excavator on the basis of data detected by sensors for detecting an operating amount of a lever for a boom and the like; sections for setting an operating mode of hydraulic pumps absorbing horse power and the like, according to the classification of work recognized; a hydraulic pump control section for controlling the hydraulic pumps according to the set operating mode; and an auto acceleration control section for making effective or invalid the auto acceleration control for controlling speed of an engine to a low speed when work stops. The apparatus further includes a device for readably storing the recognized classification of work in terms of a time series.

Control apparatus for hydraulic excavator

There are provided with an electric motor driven by a battery, a hydraulic pump driven by the electric motor, a proximal actuator for actuating a working member by working oil from the hydraulic pump, a hydraulic motor for moving a working machine body, and an operating lever which can be operated between a neutral position and an operating position. There are provided with a control valve capable of cutting off a supply of working oil to the proximal actuator in a state where operating lever is positioned at an operating position, and a battery capacity sensor for detecting the capacity of the battery. There is provided a controller for outputting a control signal for cutting off a supply of working oil to the proximal actuator to the switching control valve in a state where the battery capacity value detected by the battery capacity sensor is at a level lower than a preset battery capacity reference value. It is possible to positively prevent the machine from being immoved at the working site.

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Hiroshima, Japan

Hideki Kinugawa