Construction machineA fuel filling device () for refueling a fuel tank () is disposed in the vicinity of an exhaust gas post-treatment device (). Specifically, the fuel filling device () is disposed over a hydraulic pump…DRIVE·May 26·1 min readFollowE02F9/0866Hitachi Construction Machinery Co., Ltd.
Control device for wheel loaderProvided is a control device for a wheel loader that is capable of improving the productivity of excavation work by reducing the work time required for the excavation work. A control device is a contr…DRIVE·May 26·1 min readFollowE02F9/2083Hitachi Construction Machinery Co., Ltd.
Construction MachineA hydraulic excavator () includes a vehicle body composed of a self-propelled lower traveling structure () and an upper revolving structure (), and an operator's seat () provided on the upper revolvin…DRIVE·Mar 26·1 min readFollowE02F9/0866Hitachi Construction Machinery Co., Ltd.
Electrically Driven Haulage VehicleAn electrically driven haulage vehicle travels by a driving force of an electrically driven motor driven by being supplied with electric power from a generator driven by an engine. A controller that c…DRIVE·Mar 19·2 min readFollowB60L15/20Hitachi Construction Machinery Co., Ltd.
Construction MachineThere is provided a construction machine including an electrically driven motor that serves as a power source, a heat exchanger, a fuel cell that generates power to be provided to the electrically dri…DRIVE·Mar 12·1 min readFollowB60L50/70Hitachi Construction Machinery Co., Ltd.
Transportation VehicleA transportation vehicle includes: a cooling fan that is driven by a hydraulic motor; a heat exchanger that is disposed in a front portion of a vehicle body; a fan control valve that controls a flow o…DRIVE·Oct 23·2 min readFollowB62D5/075Hitachi Construction Machinery Co., Ltd.
Work Machine Parameter Selection Device and Parameter Recommendation SystemThe present disclosure provides a parameter selection device for a work machine that enables the work machine to efficiently travel at a work site where a travel route or a slope changes from moment t…DRIVE·May 22·2 min readFollowB60W10/06Hitachi Construction Machinery Co., Ltd.
Traveling Device for Wheeled VehicleA traveling device () is provided with a cylindrical spindle (), a rotation shaft () that is disposed on an inner peripheral side of the spindle () and is rotated by a traveling motor (), a wheel atta…DRIVE·Feb 27·2 min readFollowF16H57/0471Hitachi Construction Machinery Co., Ltd.
Power Transmission Device for VehicleA first variable relief valve (A) allows the flow of a hydraulic oil from a first main line (A) to a second main line (B) to be in a blocking state in a case the pressure of the first main line (A) is…DRIVE·Jan 23·2 min readFollowE02F9/2267Hitachi Construction Machinery Co., Ltd.
Electric Power Generation SystemAn object of the present invention is to provide an electric power generation system that can stably control, with one electric power converter, output electric power of a main winding and an auxiliar…DRIVE·Nov 28·2 min readFollowH02P21/09Hitachi Construction Machinery Co., Ltd.
Dump TruckProvided is a dump truck capable of switching a destination of supply of hydraulic oil from a hoist cylinder to a fan motor at an appropriate time. A dump truck comprising: a hydraulic pump for discha…DRIVE·Jun 27·2 min readFollowB60P1/162Hitachi Construction Machinery Co., Ltd.
Vehicular Axle DeviceA differential case () is therein provided with a plurality of rotating discs () that are spline coupled to an outer peripheral side of a right side gear (), and a plurality of non-rotating discs () t…DRIVE·May 16·2 min readFollowB60K17/16Hitachi Construction Machinery Co., Ltd.
Autonomous Travelling Mine VehicleAn object of the invention of the application is to provide an autonomous travelling mine vehicle that can suppress a decrease in work efficiency when dust is generated at a work site. Therefore, the …DRIVE·May 2·1 min readFollowB60W60/0011Hitachi Construction Machinery Co., Ltd.
Dump TruckThere is provided a dump truck that, when drive wheels () slip, is capable of reducing braking torques for the drive wheels () to avoid locking of the drive wheels (), and of generating braking torque…DRIVE·May 2·2 min readFollowB60T8/17616Hitachi Construction Machinery Co., Ltd.
Drive System for Dump TruckAn object of the present invention is to provide a drive system for a dump truck capable of suppressing increase in size of a converter that controls a two-winding induction generator. To this end, th…DRIVE·Nov 23·1 min readFollowB60L50/13Hitachi Construction Machinery Co., Ltd.
Drive SystemIt is an object of the present invention to provide a drive system including an induction generator comprising some primary windings that has a main winding and an auxiliary winding, the drive system …DRIVE·Nov 16·2 min readFollowH02P27/06Hitachi Construction Machinery Co., Ltd.
Vehicle Management SystemA vehicle management system includes an unmanned vehicle capable of autonomous traveling, a loading machine performing a loading work for the unmanned vehicle and a management station performing dispa…DRIVE·Oct 12·1 min readFollowG05D1/0297Hitachi Construction Machinery Co., Ltd.
Vehicle Management SystemProvided is a vehicle management system capable of securing safety of an escorted vehicle while suppressing a decrease in productivity by improving setting of an entry prohibited area of an unmanned v…DRIVE·Oct 5·2 min readFollowB60W60/001Hitachi Construction Machinery Co., Ltd.
Regenerative Braking System, and Electrically Driven Work Vehicle Using the SameWhen regeneration operation is being performed, electric power on a main-machine side is supplied to an auxiliary-machine side, a voltage on the auxiliary-machine side is controlled to become a first …DRIVE·Aug 17·2 min readFollowH02P3/18Hitachi Construction Machinery Co., Ltd.
Hauling Vehicle and Vehicle Control SystemAn unmanned vehicle is a vehicle that drives an electric motor by electric power generated in a power generator to travel by driving of the electric motor and includes a position sensor that detects a…DRIVE·Jul 20·2 min readFollowB60W20/19Hitachi Construction Machinery Co., Ltd.
Vehicle Control SystemA vehicle control system that makes it possible to ensure the safety and enhance the productivity at the same time is provided. An unmanned dump receives positional information about a manned vehicle …DRIVE·Jun 29·1 min readFollowB60W60/001Hitachi Construction Machinery Co., Ltd.
Construction MachineIt is an object of the present invention to provide a construction machine capable of efficiently driving a hydraulic cylinder by an accumulator. Thus, the construction machine includes a first contro…DRIVE·Mar 16·2 min readFollowE02F9/2217Hitachi Construction Machinery Co., Ltd.
Conveying VehicleProvided is a conveying vehicle that ensures efficiently travelling while suppressing vehicle slip. A dump truck includes a vehicle body provided with wheels and a vehicle control device and travels o…DRIVE·Oct 6·1 min readFollowB60W30/143Hitachi Construction Machinery Co., Ltd.
Construction MachineIn a case of a normal operation, a battery controller () assumes a normal operation mode and permits charging and discharging of a battery module (). Upon receiving a discharge command from a vehicle …DRIVE·Sep 1·1 min readFollowB60L3/0046Hitachi Construction Machinery Co., Ltd.
Electric VehicleTo provide an electric vehicle capable of reducing heat generation of the switching elements while achieving energy saving, the electric vehicle includes: an engine ; a first generator driven by the e…DRIVE·Aug 18·2 min readFollowB60K6/46Hitachi Construction Machinery Co., Ltd.
Dump TruckProvided is a dump truck capable of performing an actuation test of an emergency brake system at an appropriate timing. The dump truck comprises: front wheel and rear wheel emergency brake systems, ea…DRIVE·Jun 16·1 min readFollowB60T13/14Hitachi Construction Machinery Co., Ltd.
Injector Diagnosis Device and Injector Diagnosis MethodAn injector diagnosis device includes: an engine sound model generator configured to generate a normal engine sound model and an abnormal engine sound model based on the number of cylinders of the eng…DRIVE·Jun 2·1 min readFollowF02D41/221Hitachi Construction Machinery Co., Ltd.
Air Filter Deterioration Determination Device of Construction MachineEach time clogging of a filter () of an air cleaner is determined on the basis of intake negative pressure of an engine (), and the air filter () is cleaned, an accumulated value of operating time of …DRIVE·Apr 14·2 min readFollowE02F9/26Hitachi Construction Machinery Co., Ltd.
Construction MachineA plus-side main connection line () connects electrical equipment (), () to a plus terminal (A) of a battery (). A plus-side isolating switch () is provided in the plus-side main connection line () to…DRIVE·Mar 31·1 min readFollowE02F9/2095Hitachi Construction Machinery Co., Ltd.
Work VehicleA work vehicle includes an override operation sensor that senses override operation to carry out switching between an automatic driving mode and a manual driving mode and a selection device for select…DRIVE·Mar 24·1 min readFollowB60W60/0053Hitachi Construction Machinery Co., Ltd.
Regenerative Braking System and Electrically-Driven Work Vehicle Using Regenerative Braking SystemA power regeneration device that converts the power of a main engine DC line connected to a main engine power generator through a rectification circuit to supply the converted power to an accessory DC…DRIVE·Jan 6·2 min readFollowB60W20/50Hitachi Construction Machinery Co., Ltd.
Work VehicleTo provide a technique for reliably acquiring a required braking power during travel and for efficiently using a regenerative power generated during braking. A work vehicle calculates a regenerative p…DRIVE·Aug 26·1 min readFollowE02F9/2075Hitachi Construction Machinery Co., Ltd.
Cargo Bed Raising and Lowering Apparatus of Dump TruckWhen a tilt in a right-and-left direction occurs in a cargo bed () being raised due to imbalance of excavated materials, the tilt is detected as a roll angle (θR), and it is determined whether the abs…DRIVE·Aug 19·2 min readFollowB60P1/16Hitachi Construction Machinery Co., Ltd.
Dump TruckA vehicle drive unit () includes a spindle () on which a female spline portion (G) is formed, a wheel () disposed on an outer peripheral side of the spindle (), wheel bearings that rotatably support t…DRIVE·Aug 19·2 min readFollowB60K7/0007Hitachi Construction Machinery Co., Ltd.
Work VehicleA work vehicle including a drive device () having an internal combustion engine () for driving a vehicle body () has: a first tank () that is disposed in front of or behind the drive device, and store…DRIVE·Aug 19·1 min readFollowB60K15/063Hitachi Construction Machinery Co., Ltd.
Work VehicleA work vehicle provided with a loading hydraulic circuit (A), including at least a main hydraulic pump (), a lift aim cylinder () and a control valve (), an auxiliary hydraulic pump (), a negative par…DRIVE·Jun 3·1 min readFollowE02F9/2228Hitachi Construction Machinery Co., Ltd.
Compaction MachineA ROPS (protective structure) () is obtained by coupling upper ends of a pair of leg portions () with a coupling portion () and forming an arc-shaped curved portion () between each of the leg portions…DRIVE·May 13·2 min readFollowB60R21/13Hitachi Construction Machinery Co., Ltd.
Lifting and Lowering Device for Construction MachineA pair of right and left supporting bases () provided on a sidewalk () of a revolving body () and both right and left sides () of a movable ladder () are connected by trajectory restricting members ()…DRIVE·May 13·2 min readFollowE02F9/0833Hitachi Construction Machinery Co., Ltd.
WORK MACHINETo provide a work machine that can maintain the construction precision of semi-automatic control irrespective of excavation depths and differences in soil nature. A controller acquires soil-nature inf…DRIVE·Apr 22·1 min readFollowE02F3/435Hitachi Construction Machinery Co., Ltd.
Construction MachineA tank bracket () is formed by a bottom surface part () having a first frame body (A), a second frame body (B), a third frame body (C), and a fourth frame body (D), a first side surface part () suppor…DRIVE·Jun 2·2 min readFollowB60K13/04Hitachi Construction Machinery Co., Ltd.
