E02F9/2058

Construction machine and program rewriting system provided with same

A hydraulic shovel includes a control device including: a vehicle controller for storing a program and configured to execute rewriting processing of rewriting the program by an update program, and a communication controller configured to store the update program received from the server; and a rewriting determination part to detect whether or not the hydraulic shovel is in an electric power supply state in which electric power is supplied to an electrical component. The control device starts transfer of the update program from the communication controller to the vehicle controller when the rewriting determination part detects that the hydraulic shovel is not in an electric power supply state, and suspends transfer of the update program when the rewriting determination part detects that the hydraulic shovel is in an electric power supply state after the transfer is started and before the transfer is completed.

Driving Arrangement For Construction Machine
20210062458 · 2021-03-04 ·

The present disclosure relates to a driving arrangement for a construction machine, such as an excavator, comprising a hydraulic pump for powering a working equipment and/or locomotion of the construction machine through a hydraulic circuit, an electric motor for driving the hydraulic pump, wherein power of the electric motor is transferable to the hydraulic pump via a connection means, a supporting device for mounting the driving arrangement to the construction machine, the supporting device supporting the hydraulic pump and the electric motor, and an adjustment mechanism for adjusting the positional relationship between the electric motor and the hydraulic pump to align both component with respect to each other.

Inverter Location and Orientation Within a Mobile Machine

A mobile machine includes front and rear ends, a frame, rotatably supported ground engaging mechanisms, and an electrical drive system. The electrical drive system includes a source of electrical energy, an inverter, at least one electric motor operatively coupled to rotate at least one of the ground engaging mechanisms, a plurality of first electric cables electrically coupling the source of electrical energy to the inverter, and a plurality of second electric cables electrically coupling the inverter to the electric motor. The inverter is disposed in the mobile machine in a vertical orientation at the rear end of the machine.

Object responsive control system for a work machine
10883256 · 2021-01-05 · ·

An object responsive control system for a work machine having a boom, an attachment pivotally coupled to the boom, an object sensor adapted for sensing the presence of an undesirable object located in a travel path of the work machine and delivering an object signal upon sensing the undesirable object. A controller adapted for receiving a boom position signal, an attachment position signal, and calculating an elevational position based on the boom position signal. The system activating an object response upon calculating an attachment elevation position above a predetermined threshold and receiving an object signal.

Identification system for work machine

To provide an identification system for a work machine which is capable of preventing a setting error, the identification system for a work machine includes: a main control unit to control the entirety of a work machine; and a plurality of power control units to control components of the work machine. The main control unit acquires information about the entire vehicle body of the work machine. Each of the power control units acquires different information about a state of one of the components from that acquired by the other power control units, on the basis of a installation site of the power control unit installed on the work machine. In addition, the power control unit sets a function of the power control unit on the basis of the information about the state and the information about the entire vehicle body.

Medium voltage room for a mining shovel

A mobile mining machine includes a base with a deck and a counterweight box, a hoist drum supported on the deck, a motor drivably coupled to the hoist drum, a main transformer configured to supply power to the motor, an auxiliary transformer, and an electrical room coupled to the base. The main transformer and the auxiliary transformer are positioned inside the electrical room, and the electrical room contains at least one unguarded electrical connection.

AUTOMATED CONTROL OF DIPPER SWING FOR A SHOVEL
20200283994 · 2020-09-10 ·

Systems and methods for compensating dipper swing control. One method includes, with at least one processor, determining a direction of compensation opposite a current swing direction of the dipper and applying the maximum available swing torque in the direction of compensation when an acceleration of the dipper is greater than a predetermined acceleration value. The method can also include determining a current state of the shovel and performing the above steps when the current state of the shovel is a swing-to-truck state or a return-to-tuck state. When the current state of the shovel is a dig-state, the method can include limiting the maximum available swing torque and allowing, with the at least one processor, swing torque to ramp up to the maximum available swing torque over a predetermined period of time when dipper is retracted to a predetermined crowd position.

Hybrid construction machine

A hybrid construction machine includes: a motor generator system connected to an internal combustion engine and performing a motor generator operation; an electric power accumulation system connected to the motor generator system; a load drive system connected to the electric power accumulation system and being driven electrically; an abnormality detection part equipped to the motor generator system, the electric power accumulation system and the load drive system; and a main control part determining whether an abnormality has occurred based on a detection value of the abnormality detection part. When the abnormality determination part determines that an abnormality has occurred, the main control part stops a drive of a drive system in which the abnormality is detected in the load drive system.

Identification System for Work Machine
20200224386 · 2020-07-16 ·

To provide an identification system for a work machine which is capable of preventing a setting error, the identification system for a work machine includes: a first control device to control the entirety of a work machine; and a plurality of second control devices to control components of the work machine. The first control device acquires information about the entire vehicle body of the work machine. Each of the second control devices acquires different information about a state of one of the components from that acquired by the other second control devices, on the basis of a installation site of the second control device installed on the work machine. In addition, the second control device sets a function of the second control device on the basis of the information about the state and the information about the entire vehicle body.

Manually operable control device
10678292 · 2020-06-09 · ·

A manually operable control device for controlling moveable elements of a vehicle is disclosed. The control device may comprise a control rod element, which may be mounted so as to be slidable within a first guide path of a first control disc and within a second guide path; and the two control discs may be mounted so as to rotate independently of one another about a common axis in a continuous manner.