1015results about "Construction vehicles" patented technology

A power machine can include a frame, a lift arm, and one or more electrical devices for control of one or more work elements. An electrical tilt actuator can be secured to the lift arm to change an attitude of an implement carrier, an electrical lift actuator can be secured to the frame to raise and lower a lift arm, an electrical drive motor can be mounted to a track frame to move a track, or a battery assembly and electrical control module can be secured to the frame, including rearward of an operator station.

A cable handling system at an electrically powered mining or construction vehicle that includes a skid-steered tracked or wheeled vehicle body which is powered for motion by an electric motor. The vehicle is supplied electric power either by an on-board battery and / or fuel cell or through a trailing electrical cable which is arranged to be wound onto and unwound from a cable reel on the vehicle body. The system includes a cable guide assembly that includes an arm member and a cable guide mechanism. A first end of the arm member is rotatably attached at a rear of the vehicle body to be moveable horizontally up to about 90 degrees in either direction around the rear of the vehicle body through an arc centered in the direction of a longitudinal axis of the vehicle body.

A work vehicle has two transaxles carried by a chassis each having wheel end units rotatable to drive ground-engaging members about wheel axes and having electric machines powering transmission configured to effect multiple gear ratios. The electric transaxles are operationally mechanically uncoupled. One or more sensors detect speed, heading, and loading characteristics of the work vehicle. A controller, having memory and processing architecture, is configured to process control to: receive from the one or more sensors input of the speed, heading, and loading characteristics of the work vehicle. The controller determines a shift pair sequence for shifting the first transmission and the second transmission based on the received input of the speed, heading, and loading characteristics of the work vehicle. The shift pair sequence defines a shift time (tS1) for shifting the first transmission and a shift time (tS2) for shifting the second transmission in which the shift time tS1 is the same or different than the shift time tS2. The controller generates a first shift command to shift the first transmission at the shift time tS1 while the second electric transaxle drives the work vehicle and generate a second shift command to shift the second transmission at the shift time tS2 while the first electric transaxle drives the work vehicle.

An electric work vehicle includes a frame, a first motor to drive a first wheel, the first motor being supported by the frame and mounted on a first motor baseplate, and a second motor to drive a second wheel, the second motor being supported by the frame and mounted on a second motor baseplate. The first motor baseplate and the second motor baseplate are spaced apart from each other to define a space between the first motor baseplate and the second motor baseplate. A portion of a first motor power connection line and a portion of a second motor power connection line are located in the space between the first motor baseplate and the second motor baseplate. A first power receiving terminal of the first motor which is connected to the first motor power connection line is located at a rear portion of the first motor.

A shovel includes a lower-part traveling body; an upper-part swing body rotatably provided above the lower-part traveling body; an object detecting device provided in the upper-part swing body; a controller as a control device provided in the upper-part swing body; and at least one driven body configured to be operated by an actuator. The object detecting device is configured to detect another shovel in a detection space set around the shovel. The controller is configured to vary a movable range being a range accessible to the driven body, based on a state of an object detected by the object detecting device.

A powertrain support arrangement of a mobile underground mining machine includes an axle housing arranged transversely to a longitudinal axis of the mobile underground mining machine. The axle housing includes a first end and a second end, a support surface for a hub motor arrangement is arranged on the first end of the axle housing and a support surface for a second hub motor arrangement is arranged on the second end of the axle housing. A space for at least a part of the hub motor arrangement is arranged inside the axle housing.

An engine-type industrial vehicle includes a power transmission; a main controller; an object detector configured to detect a position of an object; a predicted trajectory calculator configured to derive a predicted trajectory followed by a vehicle body; and a vehicle-speed upper-limit setter configured to impose a vehicle speed limitation on the vehicle body by setting a vehicle-speed upper-limit value when the detected object is positioned on the predicted trajectory and a traveling direction of the vehicle body is a direction toward the object. The main controller is configured to prevent a vehicle speed of the vehicle body from exceeding the vehicle-speed upper-limit value by performing at least one of a control so that a force acts in a direction in which movement of the vehicle body is prevented or a control so that a driving force to the driving wheel is cut off.

To effectively use a detection range of a potentiometer when detecting an operation position of an artificial operation tool is detected by a potentiometer in a work vehicle.SOLUTION: A work vehicle comprises: an artificial operation tool 12 that can swing around a first shaft core P1; and a potentiometer in which a free end of a detection arm 25b that can swing around a second shaft core P2 along the first shaft core P1 is connected to the artificial operation tool 12. Since the detection arm 25b is operated around the second shaft core P2 in conjunction with the artificial operation tool 12 operated around the first shaft core P1, the potentiometer detects an operation position of the artificial operation tool 12. In a first length L1 from the first shaft core P1 to a connection portion 21e between the free end of the detection arm 25b and the artificial operation tool 12 and a second length L2 from the second shaft core P2 to a connection portion 21e between the free end of the detection arm 25b and the artificial operation tool 12, the second length L2 is shorter than the first length L1.SELECTED DRAWING: Figure 7

An electric work vehicle includes a frame, a battery housing to house a plurality of battery modules, the battery housing being supported by the frame, an AC compressor supported by the battery housing, a condenser mounted on a first front surface portion of the battery housing, a drier fluidly connected to the AC compressor and the condenser, and a first evaporator mounted forward of a second front surface portion of the battery housing in a front-rear direction of the electric work vehicle. The first evaporator is located rearward of the drier in the front-rear direction of the electric work vehicle.

The invention discloses a control method of a hybrid power system, the hybrid power system and a hybrid excavator. The control method of the hybrid power system comprises the steps that the required power of a hydraulic system, the required power of an electrically-driven rotation system and the current electric quantity of an energy storage module are obtained; the total demand power of the system is calculated according to the demand power of the hydraulic system and the demand power of the electric drive rotation system; determining the working mode of the hybrid power system according to the size relation between the total demand power and a first preset value and the size relation between the current electric quantity of the energy storage module and an electric quantity limit value; when the hybrid power system is in the heavy load mode, the generator motor is controlled to provide power for the hydraulic system; and when the hybrid power system is in the light load mode, the generator motor is controlled to convert part of kinetic energy generated by the engine into electric energy to charge the energy storage module. The system reliability can be enhanced, energy consumption and emission are reduced, and efficient utilization of energy is achieved.

Systems and methods for managing task assignments (214) for a plurality of work machines (107) at a site (100) are disclosed. A distribution engine (220) may: receive first status data (206) for a work machine including historical data, operating conditions, and location data, and second status data (206) for a venue (100) including feature data for materials and a plurality of available tasks; predicting performance data and energy consumption data of the working machine for the task; selecting a task for the work machine by inputting the first state data (206) and the second state data (206) into a trained reinforcement learning model (228), where: the model (228) has been trained to learn an allocation policy (230) that optimizes the reward function (232) such that the learned policy selects a task for at least one work machine from a plurality of available tasks of the venue (100); and causing the at least one work machine to operate according to the at least one task assignment (214).

A method in a vehicle for estimating vehicle motion state during a vehicle maneuver, comprising; obtaining a trigger signal indicating an onset of the vehicle maneuver, selecting a sub-set of wheels on the vehicle to be in a free-rolling condition, measuring one or more parameters related to revolution of the sub-set of wheels in free-rolling condition, and estimating the vehicle motion state based on the measured parameters.

An electric work vehicle includes a chassis, a battery housing to house a plurality of battery modules, a cooling structure mounted to a front portion of the battery housing, and an inverter. The battery housing is supported by the chassis. The cooling structure includes a fan mounted at a front portion of the cooling structure. The fan is rotated by an electric motor powered by the inverter.

The invention relates to a self-propelled construction machine, in particular a soil compaction machine or soil milling machine, and a method for cooling a cooling room or a cooling compartment of a self-propelled construction machine.

The invention relates to an energy management control method and system for an extended-range mine car, and belongs to the field of mining trucks. The method comprises a fixed-point working mode of the range extender, and comprises the following specific steps: acquiring vehicle driving required power; if the vehicle driving demand power is smaller than the vehicle driving power lower limit, the range extender requests the generated power to be 0; if the vehicle driving demand power is between the vehicle driving power lower limit and the vehicle driving power upper limit, the range extender request generated power is the first range extender generated power; if the vehicle driving demand power is larger than the vehicle driving power upper limit, the range extender request generated power is the second range extender generated power; the method is used for solving the problems that different working modes need to be judged and selected due to different working conditions in the vehicle running process, hardware such as a sensor and a chip with higher computing power are additionally added, cost is increased, and reliability is reduced.

A work machine includes a battery unit, a battery support portion, a first charger, and a second charger. The battery unit is disposed in an engine room and supplies electric power to an electric motor. The battery support portion supports the battery unit and is removably fixed to a machine body frame. The battery support portion has an insertion portion into which a jig for attaching and detaching the battery unit can be inserted from one side in a front-rear direction. The first charger is disposed in the engine room and charges the battery unit with electric power. The second charger is disposed in the engine room and charges the battery unit with electric power. The work machine has a normal charging mode in which charging is performed by the first charger alone and a quick charging mode in which charging is performed by the first and second chargers.

The invention relates to a construction vehicle (1).A battery module (40; 240; 340) is provided to supply electricity to at least one electric motor (80, 87) of the construction vehicle (1).A fastening structure (70; 270) of the battery module (40; 240; 340) is designed to be removably fastened to a first longitudinal member (10-1), in a fastening position located beneath the cab (29) in the vertical direction (C-C) of the construction vehicle (1), and the battery module (40; 240; 340) in the fastening position is accessible from an outer side of the construction vehicle (1) so that said module can be brought into or out of the fastening position from the outer side of the construction vehicle (1).

The invention relates to a road construction machine having a controller 27 which is configured such that control command signals are generated for drives and actuators 8, 9, 16, 20A, 20B assigned to the wheels 4, 5, 6, 7 and / or the milling / mixing roller 18. Additionally provided are: a human-machine interface 26 that interacts with the controller 27 and a memory device 30that interacts with the controller as well as a state monitoring device 32 that interacts with the controller, which monitoring device detects an operating state or operating mode of the drives and actuators. The road construction machine is characterized in that a plurality of instruction data sets is stored in the memory device, said data sets each containing data for an instruction to be visualized using the human-machine interface. The controller provides a learning mode comprising a plurality of lessons for adjusting the position of the wheels and / or the height of the milling / mixing roller and is configured such that, depending on an operating state or operating mode of the drives and actuators detected by the state monitoring device, a selection of a specific data set is made from the instruction data sets stored in the memory device, and the instruction corresponding to the selected instruction data set is visualized using the human-machine interface. In addition, depending on the command entered with the human-machine interface after the visualization of the instruction, the controller generates for the drives and actuators the control command signals corresponding to the command entered, so that the wheels and / or milling / mixing roller move.

A vehicle includes a chassis, a housing to house one or more battery modules, the housing being supported by the chassis, an electric motor to receive electrical power from the one or more battery modules, a liquid cooling system including a radiator to cool a coolant when the coolant flows through the radiator, and one or more coolant pumps connected to the radiator to circulate the coolant, and an air cooling system to cool the one or more battery modules. The air cooling system includes a compressor, a condenser, and one or more evaporator coils, and the radiator and the condenser are located adjacent to each other.

A working machine includes a machine body; a prime mover mounted on the machine body; a peripheral device disposed in a periphery of the prime mover; and an attachment bracket to support the peripheral device. The attachment bracket includes a base member to support the peripheral device in a vicinity of a driven unit to be driven with power of the prime mover, and a pressing member coupled to the base member, to hold the peripheral device between the pressing member and the base member.

A vehicle includes a chassis, a roof supported by the chassis, and a liquid cooling system. The liquid cooling system includes a radiator to cool a coolant when the coolant flows through the radiator and one or more coolant pumps connected to the radiator to circulate the coolant, and the radiator is mounted on the roof.

Systems and techniques are described for implementing autonomous control of earth-moving vehicles, including to automatically determine and control movement around a site having potential obstacles. For example, the systems / techniques may determine and implement autonomous operations of excavator vehicle(s) (e.g., obtain / integrate data from sensors of multiple types, and use it to determine and control movement of the excavator vehicle around a site), including in some situations to implement coordinated actions of multiple excavator vehicles and / or of an excavator vehicle with one or more other types of earth-moving vehicles. The described techniques may further include determining current location and positioning of the excavator vehicle on the site, determining a target destination location and / or route of the excavator vehicle, identifying and classifying obstacles (if any) along a desired route or otherwise between current and destination locations, and implementing actions to address any such obstacles.

An object of the present invention is to provide an information input system for a work machine capable of performing various kinds of settings of a work machine by using an information terminal while preventing an erroneous operation of the work machine. Therefore, in an information input system for a work machine including: a controller that is mounted on the work machine; and an information terminal that inputs information to the controller via communication, an input of the information from the information terminal to the controller is disabled in a case where the information terminal is located at a predetermined position in an operation room of the work machine.

A computer system comprising processing circuitry configured to: receive an engine restart request for restarting an engine of a vehicle while the vehicle is moving; receive, directly from the engine, a signal encoding a real-time rotational speed of the engine; and control an actuator to gradually engage a clutch of a transmission coupled to rotating wheels of the vehicle in such a way that a rate of change of the real-time rotational speed of the engine is kept below a predefined threshold rate of change.

A wheel assembly to be coupled to a hub of a vehicle may include an inner rim to be coupled to the hub of the vehicle and an outer rim surrounding the hub. The wheel assembly may also include gas springs with associated integral hydraulic dampers coupled between the inner and outer rims to provide a suspension for relative movement between the inner and outer rims. Each gas spring and associated integral hydraulic damper may include a first cylinder body and a second cylinder body slidable therein, and a first seal defining first and second gas chambers within the first cylinder body. Each gas spring and associated integral hydraulic damper may also include a shaft extending within the first cylinder body and into the second cylinder body defining a hydraulic fluid chamber, and an enlarged orifice body coupled to the shaft defining a hydraulic damper with the second cylinder body.

Object detection systems and methods are disclosed. In one example, an object detection system holds blind spot information about a blind spot area of a driving target. An information acquisition unit acquires surroundings situation information about a surrounding situation of the driving target, a detection processing unit detects an object based on the surroundings situation information, a state determination unit determines that the object is in a dangerous state where the object is in the blind spot area, based on position information of the object detected and the blind spot information, and a notification unit notifies a driver of the driving target and / or surroundings around the driving target that the object is in the dangerous state.

A working machine includes a body, a ground-engaging propulsion structure supporting the body, a drive arrangement configured to provide motive power to the ground engaging propulsion structure, a braking system actuatable to apply a braking force to the ground engaging propulsion structure, a control system, and a sensor assembly configured to determine an output of the drive arrangement and to provide an output to the control system. The control system is configured to apply a first braking force to the ground engaging propulsion structure that is based on the determined output of the drive arrangement.

A vehicle (10) includes a first battery housing (600) to house a plurality of first battery modules (61), a second battery housing (70) to house a plurality of second battery modules (71), and an air cooling system to cool the plurality of first battery modules and the plurality of second battery modules. The air cooling system includes a compressor (362), a condenser (531), a first evaporator coil (3551L) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the first evaporator coil, and a second evaporator coil (3551R) that includes a first side at which warm air is received and a second side at which cool air exits after having passed through the second evaporator coil.

To realize various controls in a fluid pressure control system.SOLUTION: A discharge control unit 31 of a pump control device 30 has: a relief valve 40 that is provided in a discharge passage 15 and opens when a pressure in the discharge passage 15 reaches a predetermined valve opening pressure; a downstream throttle 32 that applies resistance to a flow of hydraulic oil that is guided from a supply passage 11 to the discharge passage 15 and passes through the relief valve 40; and a pressure sensor 35a that measures the pressure of the hydraulic oil guided from the relief valve 40 to a resistance unit. The controller 50 increases a discharge flow rate of a pump P as an operation input increases, pre-stores pressure-flow characteristics that are the relation between the pressure loss in the downstream throttle 32 and a passing flow rate, acquires a flow rate of the hydraulic oil passing through the downstream throttle 32 based on the pressure-flow characteristics of the downstream throttle 32 and the pressure measured by the pressure sensor 35a, and controls a discharge capacity of the pump P and an opening pressure of the relief valve 40 according to the flow rate of the hydraulic oil passing through the downstream throttle 32.SELECTED DRAWING: Figure 1

A device includes a platform and a staircase moveable between a retracted state and an extended state. The staircase has steps including a retractable step and a support segment. A linkage system includes an actuator that moves the staircase from the retracted and extended state, a sensor detecting the staircase state and a vehicle condition, and an extension bracket coupling the staircase and platform. A controller determines the staircase state, determines an articulation angle, compares the articulation angle to an articulation angle threshold, in response to the articulation angle exceeding the threshold, causes the staircase to move to the retracted state, detects a vehicle operation event, in response to detecting the operation event, causes the staircase to move to the retracted state, detects a vehicle shut-down event, and in response to detecting the shut-down event causes the staircase to move to the extended state.