1028results about "Construction vehicles" patented technology

A vehicle including a prime mover, a generator mechanically coupled to the prime mover, a first multi-input drive unit having at least first and second rotational inputs and at least one rotational output wherein the first rotational input is coupled to the prime mover, a first electric motor mechanically coupled to the second rotational input and electrically coupled to the generator and a first pair of vehicle drive wheels coupled to the rotational output.

A hybrid vehicle powertrain system includes a first prime mover, a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory, and a second prime mover. The second prime mover is operable to drive the power transmission mechanism alone or in combination with the first prime mover to provide power to the power take-off through the power transmission mechanism. The invention further includes methods for operating a hybrid vehicle powertrain system.

A method for controlling a power-shift transmission comprising controlling a vehicle travel speed by simultaneously slipping two or more clutch packs associated with opposing directions of vehicle travel and adjusting an engine speed, according to a programmed response associated with a change in one or more of the engine speed, a torque converter slip, a selected direction of vehicle travel, and an accelerator position.

A construction machine comprises an electric motor / generator; an engine; an epicyclic gearing for rotating the electric motor / generator reversely when speed of a rotation output to a drive wheel is zero during running of the engine; a transmission configured to switch between a forward driving gear position and a backward driving gear position; and a controller for controlling the engine, the electric motor / generator and the transmission, based on at least an accelerator opening, and a state of charge in an electric storage device; the controller being configured to switch the forward driving gear position or the backward driving gear position to a direction opposite to a direction in which the construction machine is moving, and cause the electric motor / generator to generate reverse torque in a power running mode, when the electric storage device is in a fully charged state and the accelerator has been pressed down by a driver.

A system and tool for monitoring ground-engaging products for earth working equipment that can monitor characteristics such as part identification, presence, condition, usage, and / or performance of the products on earth working equipment used, for example, in mining, construction, and dredging environments. The monitoring tool includes or is supported by a mobile device that is separate from the earth working equipment. Supporting the monitoring tool on a mobile device can, e.g., provide unique vantage points to monitor the earth working equipment products, monitor the products without inhibiting the operation of the earth working equipment or endangering personnel, closely approach areas of interest for secure and reliable gathering of information, monitor multiple earth working equipment, and / or be protected from the vibrations and impact shocks that can be associated with earth working equipment.

A fuel tank (12) is constructed such that a front flange portion (14A1) of a top surface plate (14A) of a second plate (14) extends outside in relation to a front surface plate (13B) of a first plate (13). As a result, a front surplus space (15A) projected in the upper and lower directions in a range of the front flange portion (14A1) of the top surface plate is formed in the front surface side of the front surface plate. A urea water tank (24) is arranged along the fuel tank (12) in such a manner that a rear side portion thereof enters into the front surplus space portion. Therefore, the rear side portion of the urea water tank can enter into the front surplus space using the front surplus space formed in the fuel tank (12), thereby increasing the tank capacity without downsizing the article accommodating box (16).

A drive system which integrates an electric generator, one or more electric motors and an electronic control module is configured as a variable speed drive in either single, dual or four wheeled traction drive configurations for a mower. The generator is mechanically driven by the output shaft of an internal combustion engine to generate the electrical power for energizing the electric motors. A central computer in the electronic control module controls the output voltage of the generator and the speed and torque of each of the motors in the drive system. The speed input signal for the motors can be analog signals that come from sources such as a joystick, a potentiometer mounted on a steering wheel, control panel, foot pedal or remote location or digital signals from a digital device. Position / speed detectors on each motor and the generator send signals back to the central computer for closed-loop control of the generator and of the motors. The generator supplies the DC voltage to the power control board for each motor as commanded by the central computer. The rotor of each motor is connected to a gearbox for speed reduction and increased torque that is applied to the wheel mounted on the output shaft of the gearbox. When the motors are not being driven, the generator may optionally supply DC power to the input of an inverter that has an output to standard electric utility AC outlets that can be used to power auxiliary equipment.

An arrangement of radiators (2–6) for a utility vehicle, e.g., an agricultural tractor, comprising three or more cooling radiators which together define a chamber (7), optionally with some of the walls formed by perforated plates instead of radiator elements. One of the radiator elements may be pivotally mounted with respect to the others to provide access to the chamber. The arrangement of radiators may be mounted on a common support (1).

A work vehicle is disclosed with an information displaying device preventing set information corresponding to a setting screen displayed on a display from being erroneously changed even while permitting an operation for switching to and displaying one among a plurality of set screens on the display. A setting information processing unit of the information displaying device includes setting screen displaying means for switching the setting screen by the input of a first operation information item and displaying same in a transition display mode, and setting information changing means for performing a process in an information change mode for permitting a change to the set information corresponding to the setting screen, by inputting of a second operation information item. When it is determined that the second operation information item is inputted in the information change mode, a process for restoring the transition display mode from the information change mode is performed.

In a hybrid excavator of the invention, a hydraulic pump and a generator motor are connected in parallel to an output shaft of an engine and a rotation motor is driven by a battery. The generator motor assists the engine by performing a motor function. Power consumption of each of the hydraulic pump and the rotation motor is detected. The output of the hydraulic pump and the rotation motor is controlled such that the sum of the detected power consumption does not exceed maximum supply power set as the sum of power that can be supplied to the hydraulic pump and the rotation motor. Therefore, the equal performance and operation with the hydraulic excavator can be ensured, and the electric power storage arrangement can be protected.

A beach wagon is disclosed which is convertible from a beach-wagon to a table. The wagon is used for transporting goods and contains a large cargo container with an open top. The beach wagon is easily converted from motorized to manual and back again, through the disengagement and re-engagement of the drivetrain. When motorized, a d-c battery-driven motor drives the rear wheels, and the rechargeable battery thereof is optionally aided by a solar panel. Forward gearing includes low-speed for pavement and hard sand and high-speed for soft sand. A rectangular deck has a pair of table leaves hingedly attached thereto and operable between an open and closed position. The leaves form opposite sides of a cargo container and in the closed position form a table. A pair of container panels attach to the table leaves and deck to form the cargo container.

An object of the invention is to maintain high vehicle driving performance and system efficiency by preventing reductions in the traction characteristic and the maximum driving speed of a vehicle.The invention relates to an electrical system for an electric automotive vehicle for driving the vehicle by supplying an electric power of a direct-current power supply to an electric motor for driving wheels via a semiconductor power converter for driving the wheels such as an inverter and speed-variably driving this electric motor or an electrical system for an electric automotive vehicle using an engine and a direct-current power supply as driving sources. A booster chopper 200 is connected between a battery device 1 or 4 as the direct-current power supply and an inverter 2 or a semiconductor power converter 100, and is controlled so that a direct-current input voltage of the inverter 2 or the like becomes substantially constant.

A speed control system for a utility vehicle, the vehicle having a forward-facing driving position and a rearward-facing seat, includes a creep control system for moving the utility vehicle, controlled from the rearward-facing seat. The vehicle includes a speed-controllable transmission operable to output power to drive a wheel. The vehicle includes a creep speed control actuator located adjacent to the rearward-facing seat and a creep speed control system operatively connected to the actuator and to the transmission. The system converts movement of the actuator to speed change of the transmission. The transmission can be a mechanically or electronically controlled hydrostatic transmission, or an electronically controlled reverser transmission.

A motorized beach wagon is disclosed which is convertible from a beach-wagon to a table. The wagon is used for transporting goods and contains a large cargo container with an open top. The undercarriage has a pair of front wheels positioned by a manually controlled yoke to steer the beach wagon. A d-c battery-driven motor drives the rear wheels, and the rechargeable battery thereof is optionally aided by a solar panel. Forward gearing includes low-speed for pavement and hard sand and high-speed for soft sand. A rectangular deck has a pair of table leaves hingedly attached thereto and operable between an open and closed position. The leaves form opposite sides of a cargo container and in the closed position form a table. A pair of container panels attach to the table leaves and deck to form the cargo container.

An engine air intake system including an engine air intake device and a plenum cooling compartment that is separate from the engine compartment by a baffle. The plenum cooling compartment is formed by the baffle, side doors, a fan door and a floor and contains a heat exchanger. A fan draws outside ambient air into the plenum cooling compartment, via perforations in the top and side doors, and out of the plenum cooling area via the heat exchanger. The cooling compartment is designed such that a distance between the heat exchanger and the baffle provides a gap from which the engine air intake device removes ambient air as a source for engine air. An option is provide for the system to withdraw outside ambient air from an area external to the plenum cooling compartment in high debris environments. The engine air intake system cleans the air before supplying it to the engine.

In a hybrid excavator, a hydraulic pump and a generator motor are connected in parallel to an output shaft of an engine and a rotation motor is driven by a battery. The generator motor assists the engine by performing a motor function. Power consumption of each of the hydraulic pump and the rotation motor is detected. The output of the hydraulic pump and the rotation motor is controlled such that the sum of the detected power consumption does not exceed maximum supply power set as the sum of power that can be supplied to the hydraulic pump and the rotation motor.

A vehicle includes a rolling chassis structure and a working component coupled to the rolling chassis structure. The rolling chassis structure includes a chassis, a non-working component, and a control interface. The non-working component is coupled to the chassis and is configured to facilitate transit operations for the rolling chassis structure. The control interface is disposed in a cab area of the chassis. The control interface is communicably coupled to the non-working component and is configured to control operation of the non-working component. The working component is configured to move relative to the chassis and is communicably coupled to the control interface. The control interface is configured to control movement of the working component.

A control system for a load-carrying vehicle includes a sensor configured to measure a parameter of the vehicle and communicate a sensor signal indicative of the measured parameter. The control system also includes a control module configured to receive the sensor signal from the sensor and determine an appropriate engine power level based on the sensor signal.

An electric drive system has a power source and a generator operatively connected to the power source. The electric drive system also has at least one energy storage device such as a capacitor configured to store a supply of power. The electric drive system further has a common bus configured to direct the power output to the capacitor. The electric drive system also has at least one motor configured to receive power from the common bus. A controller for the electric drive system is provided, having an article therewith having a computer readable medium with a control algorithm recorded thereon. The control algorithm includes means for compensating for a change in power demand on a DC bus of the electric drive system

Power distribution of an engine and an electric power storage device is determined according to a charge amount of the power storage device, and the charge amount of the power storage device is maintained in an adequate range. A power source device for working machines includes a hydraulic pump, a generator-motor, an engine, serving as a common power source, to which the hydraulic pump and the generator-motor are connected parallel, and a battery, serving as an electric power storage device, for storing a power thereof by the generator function of the generator-motor. The generator-motor is driven by a discharge power of the battery to perform the motor function. Using a controller, the power distribution of the engine and the generator-motor is determined based on the required actuator power, the charge power and the discharge power of the battery which are set according to the battery charge amount in such a way that the battery charge amount is maintained in a predetermined range, and on the preset engine power.

A vehicle control system includes a steering wheel, such as an steering wheel, an adjusting device, a sensor and a control unit. The steering wheel may be actuated by the hand of an operator to set a state variable of the vehicle. The adjusting device applies a force to the steering wheel. A sensor senses a variable representing a state variable of the vehicle and transmits a sensor signal to the control unit. The control unit determines a state variable of the current operating state of the vehicle. The control unit, depending on the current operating state of the vehicle, controls the adjusting device so that a predetermined force is applied to the steering wheel, in order to make the operator aware of an unsafe operating condition.

Construction machinery is capable of prompting an operator to control or operate the machinery to improve fuel consumption. The fuel consumption per time or the fuel consumption per work amount is measured, and an image showing a difference between the measured fuel consumption per time and a set fuel consumption per time or between the measured fuel consumption per work amount and a set fuel consumption per work amount is displayed on a display device (30). When the measured fuel consumption per time is larger than the preset fuel consumption per time or the measured fuel consumption per work amount is larger than the set fuel consumption per work amount, an indication for prompting the operator to improve the fuel consumption is displayed on the display device (30).

A method for managing a drive mode of a tracked vehicle, including reading an output of a sensor and, in response to the output of the sensor, performing a control action to manage the drive mode of the vehicle. An apparatus for managing a drive mode of a tracked vehicle is also provided and comprises a sensor outputting a signal that conveys information that can be used to manage the drive mode.

A hybrid vehicle powertrain system includes a first prime mover, a first prime mover driven power transmission mechanism having a power take-off adapted to drive a vehicle accessory, and a second prime mover. The second prime mover is operable to drive the power transmission mechanism alone or in combination with the first prime mover to provide power to the power take-off through the power transmission mechanism. The invention further includes methods for operating a hybrid vehicle powertrain system.

A self-propelled material handler has a pivotally mounted boom on a frame, and a cab that is positioned adjacent the side of the boom. The cab has an operator's entrance and exit opening on a side of the cab, that is positioned to permit an operator to enter and exit the cab and sit on a seat in the cab. A lateral restraint bar is mounted between the seat and the cab opening, and is movable to a working position where it obstructs the cab opening so that portions of the operator cannot be moved outwardly through the cab side opening from the interior, and which pivots to a raised position to permit an operator to pass through the cab opening. When the restraint bar moves away from its working position, a signal is provided to disable machine controls.

A wheel driven utility vehicle includes a frame and two small volume high speed alternating current electric motors arranged side by side for driving the vehicle. Alternatively high speed direct current, hydraulic or pneumatic direct current motors may be used with suitable controls. Each motor has an output shaft which drives an offset planetary gear reducer. Each offset planetary gear reducer is affixed to the electric motor and includes an output carrier interconnected with an output shaft. Each output shaft includes first and second chain drive sprockets which drive chains interconnected with shafts driving the front and rear wheels respectively. Each offset planetary gear reducer enables use of space saving high speed relatively low-torque alternating current electric motors with attendant large speed reductions. Gear reduction enables the production of sufficient torque at the wheels of the vehicle. Applications in addition to utility vehicles are also specifically contemplated.