Provided is a load fall preventing system for a forklift according to an exemplary embodiment of the present disclosure includes a load weight measuring unit 1 including a plurality of pressure sensors for measuring weight of a load loaded on a fork of a forklift, a risk determination unit 2 for determining a degree of risk of a loading situation of the load based on pressure information measured by the plurality of pressure sensors; and an operation unit 3 that performs an operation to prevent a fall of the load in accordance with the degree of risk of the loading situation determined by the risk determination unit.
According to various example embodiments, a pallet clamp apparatus for clamping a pallet to a pair of forks provided in a forklift includes a housing disposed adjacent to each of the pair of forks, a locking member, at least a portion of the locking member protruding to the outside of the housing to fix the pallet, a spring member configured to elastically press the locking member toward the inner side of the fork in a lateral direction, and a release member configured to release fixing of the locking member by pressing the spring member.
Disclosed herein is an electromagnetic brake system. The electromagnetic brake system includes a brake disc configured to be rotated together with a drive shaft of a drive motor configured to operate a vehicle wheel, an armature disc configured to be movable so as to be in close contact with or so as to be separated from one side of the brake disc, an elastic member configured to elastically press the armature disc to the one side of the brake disc to a direction in which the armature disc is in close contact with the brake disc, and an inductor configured to separate the armature disc from the brake disc by an electrical signal. The brake disc includes a tube portion mounted on the drive shaft, and a plate portion provided to extend in an outward direction of the tube portion to be opposite to the armature disc. The tube portion and the plate portion are provided as a single member in which the tube portion and the plate portion are integrally formed with each other.
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
B60T 1/06 - Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission
F16D 55/02 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
The present disclosure relates to an ISG control system and an ISG control method for a construction machine capable of controlling ISG even in a working state of a construction machine, the ISG control system including: a surrounding environment determinator configured to determine surrounding environment of the construction machine; and a vehicle controller configured to determine whether the construction machine is in a working state or a traveling state based on a determination result from the surrounding environment determinator, wherein the vehicle controller controls an engine based on a preset work ISG condition when it is determined that the construction machine is in the working state, and wherein the vehicle controller controls the engine based on a preset travel ISG condition when it is determined that the construction machine is in the traveling state.
A forklift truck includes a carriage that moves up and down by a mast assembly in a multi-stage structure including an outer mast, a first inner mast accommodated in the outer mast, and a second inner mast accommodated in the first inner mast. The forklift truck includes a first lift cylinder configured to move the first inner mast up and down; a second lift cylinder configured to move the second inner mast up and down and having a pressure reception area less than a pressure reception area of the first lift cylinder. A first lift hydraulic line supplies hydraulic oil to the first lift cylinder. A second lift hydraulic line supplies hydraulic oil to the second lift cylinder. A pressure regulating valve is provided to increase a pressure of the hydraulic oil to a pressure capable of driving the second lift cylinder.
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
An industrial vehicle work guide system is disclosed. An industrial vehicle work guide system according to an embodiment of the present invention includes: a memory configured to store engine used data, a driving time, a fuel consumption amount, and reference fuel efficiency; a display module configured to output a guide message; and an analysis module configured to calculate actual fuel efficiency by using the engine used data, the driving time, and the fuel consumption amount, compare the actual fuel efficiency with the reference fuel efficiency, and control the display module so that the display module outputs a guide message when the actual fuel efficiency is lower than the reference fuel efficiency.
G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
F02D 41/24 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
An exemplary embodiment of the present disclosure relates to an armrest apparatus and an industrial vehicle including the same, and the armrest apparatus disposed in a driver seat includes: an armrest body which supports an operator's arm; and a drive unit which has a variable length, provides power to move the armrest body upward, and absorbs force applied in a direction in which the armrest body moves downward.
The present disclosure relates to an electric brake system for an electric vehicle, which is more economical by simplifying a configuration of an electric vehicle that includes a main service brake and an electromagnetic brake, the electric brake system including an inductor, in a spherical shape, formed so that a drive axle penetrates through a center portion of the inductor; a plurality of springs inserted into holes defined in the inductor; an armature, in a disk shape, provided to contact the spring; and a friction disk mounted on a side of a motor, where a braking force is generated by operating the friction disk toward the armature.
A system of controlling a lowering speed of a work lever of a forklift which includes, a hydraulic motor connected to the work lever through a hydraulic line to transmit a power to the work lever; an electronic solenoid valve for controlling the hydraulic motor connected to the work lever; a weight sensor provided at one side of the work lever, the weight sensor measuring a weight of a load placed on the work lever and transmitting the measured value to a controller; and a controller for controlling an RPM of the hydraulic motor and a current amount of the electronic solenoid valve based on the measured value transmitted from the weight sensor.
B60W 10/30 - Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
F15B 11/05 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
The present invention is related to a cooling device for a forklift brake system, which is capable of maintaining a predetermined level of heat-radiation performance by reducing heat when heat is generated in a service brake that is provided at a forklift driving shaft. A cooling device for a forklift brake system according to an exemplary embodiment of the present invention allows cooling oil to bypass a cooler when a pressure of the cooling oil is abnormally increased or there is a concern that a pressure of the cooling oil is increased, thereby preventing the cooler from being damaged.
The present disclosure is related to a system for regenerating a DPF and a method thereof. The system for regenerating a DPF during operation of an engine-powered forklift that includes the DPF for collecting particulate matter form exhaust gas discharged from an engine to an exhaust path includes: an engine control unit for controlling operation of the engine; an electro-hydraulic pump for discharging a working fluid that generates a hydraulic load; a control unit for determining a state of the forklift when a DPF regeneration request signal is received from the engine control unit, and controlling at least one of the hydraulic load of the electro-hydraulic pump and revolutions per minute of the engine according to the determined state of the forklift; and a diesel oxidation catalyst unit for regenerating the DPF according to the control of the control unit. According to one or more embodiments of the present invention, it is possible to regenerate a DPF in an engine-powered forklift without periodic forced regeneration of the DPF during operation of the engine-powered forklift, by controlling at least one of a load of an electro-hydraulic pump and an engine speed of an engine. Accordingly, the performance of works may be improved, and the safety may be ensured in the engine-powered forklift.
F01N 3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
F01N 3/023 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
F01N 9/00 - Electrical control of exhaust gas treating apparatus
An apparatus for controlling vehicle motors based on a battery temperature includes: a battery temperature sensor unit for measuring a temperature of a battery pack of an industrial vehicle; a battery monitoring unit for monitoring a measured value of the temperature sensor unit, and for transmitting temperature information when the temperature of the battery pack is out of a reference value that is predetermined; a vehicle control unit for restricting driving of a motor that receives a power from the battery pack based on the temperature information; and a fan control unit for controlling driving of a fan that cools the battery pack based on the temperature information.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B60L 58/24 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
B60W 20/13 - Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limitsControlling the power contribution of each of the prime movers to meet required power demand in order to prevent overcharging or battery depletion
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
B60L 50/50 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
B60L 58/26 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
22.
Apparatus for controlling irradiated light on forklift
An apparatus for controlling irradiated light of a forklift according to an embodiment of the present invention is characterized in including: a lamp driving unit for controlling an illumination angle of a lamp that illuminates a forklift; a fork position sensing unit provided at one side of the forklift or a carriage, and sensing a lifted position of a fork; and a control unit for controlling the illumination angle of the lamp through the lamp driving unit according to the lifted position of the forklift, when the lifted position is input from the fork position sensing unit.
F21S 41/30 - Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
B60Q 1/06 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
B66F 17/00 - Safety devices, e.g. for limiting or indicating lifting force
B60Q 1/26 - Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
The present disclosure relates to an electric forklift and a method of driving the same which are capable of increasing a lifespan of a battery, and the electric forklift includes: a traveling motor which operates a wheel; a working machine motor which operates a working machine; a control unit which controls the operations of the traveling motor and the working machine motor based on an output control signal inputted from the outside; a battery which supplies electric power to the traveling motor, the working machine motor, and the control unit; and a temperature detecting unit which detects a temperature of the battery, in which the control unit controls an operation of at least one of the traveling motor and the working machine motor based on a detected temperature from the temperature detecting unit.
B60L 58/25 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by controlling the electric load
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
The present disclosure relates to a fork movement control device. A fork movement control device according to an exemplary embodiment of the present disclosure may control and simultaneously move two forks by manipulating a single lever.
The present disclosure relates to an apparatus and a method for controlling a forklift. The apparatus and the method for controlling the forklift according to the present disclosure adjusts a fork/mast inclination by referring to cargo load and forklift speed, and particularly, when a movement direction of a cargo when the cargo slides on a fork in a forward direction, thereby preventing the cargo from falling. Further, when a degree of danger is not decreased even when a fork/mast inclination is tilted backward to the largest extent, the apparatus and the method for controlling the forklift according to the present disclosure may decrease a travelling speed of a vehicle by decreasing an output of the forklift or operating a brake, thereby remarkably decreasing the danger of the cargo falling.
The present disclosures relates to an apparatus and a method for detecting power abnormality of an engine-type forklift truck, and the apparatus for detecting power abnormality of an engine-type forklift truck includes: a power supply unit including a pair of batteries so as to supply power to an electric device included in an engine-type forklift truck; an engine control unit (ECU) which receives power from the power supply unit; an equalizer which is provided between the power supply unit and the ECU so as to maintain a voltage balance between the pair of batteries and adjust a voltage of power supplied to the ECU; and an abnormality detecting unit which compares a voltage input from the pair of batteries with a voltage input from any one of the pair of batteries, and detects abnormality in the voltage balance.
G01R 1/00 - Details of instruments or arrangements of the types covered by groups or
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
F02D 29/02 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehiclesControlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving variable-pitch propellers
B66F 9/06 - Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
31.
Device for controlling steering wheel and method for controlling steering wheel using same
A device for controlling a steering wheel and a method for controlling a steering wheel using the same that includes: a detecting bar which is rotated in conjunction with a steering shaft of an industrial vehicle's steering wheel; a sensor at one side of the detecting bar so as to detect a steering angle of the steering wheel by means of the detecting bar; and a controller which controls the steering wheel based on a sensing signal of the sensor so as to position the steering wheel in a neutral position during a time when electric power is applied to the industrial vehicle and the industrial vehicle is initialized. When an operator turns on a power source of the electric forklift, the steering wheel is positioned in the neutral position to enable an operator to immediately drive the electric forklift without confirming a position of the steering wheel.
An exemplary embodiment of the present disclosure relates to an automatic stopping device for a forklift, and more particularly, to an automatic stopping device for a forklift, which forcibly stops the forklift by simultaneously operating a forward clutch and a reverse clutch when an operator moves away from the forklift in a state in which an engine is turned on. According to the automatic stopping device for a forklift according to the exemplary embodiment of the present disclosure, first, it is possible to prevent a safety accident by forcibly stopping the forklift in the absence of the operator, and second, the automatic stopping device for a forklift is economical because it is possible to effectively stop the forklift using an additional simple configuration.
B60T 7/14 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger operated upon collapse of driver
B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
The present disclosure provides a multi-step regeneration apparatus of a diesel particulate filter (DPF), which generates a load to an engine to remove soot, the apparatus including: an external air temperature sensor configured to measure a temperature of external air; a controller configured to compare a temperature value measured by the external air temperature sensor with a predetermined value and output a signal; and a control valve unit including a first control valve and a second control valve receiving a signal from the controller, and a first spool operated by the first control valve and a second spool operated by the second control valve.
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
F02D 29/04 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
F01N 3/023 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
The present disclosure relates to a fuel injector for a diesel particulate filter, and more particularly, to a fuel injector for a diesel particulate filter which is capable of combusting and removing particulate matters included in the exhaust gas by injecting fuel into an exhaust gas discharge line. The present disclosure can prevent fuel from being frozen when fuel is intended to be injected into an exhaust gas line during the winter season or in a cold region, thereby allowing DPF regeneration to be smoothly carried out.
F01N 3/36 - Arrangements for supply of additional fuel
F01N 3/023 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
F01N 9/00 - Electrical control of exhaust gas treating apparatus
F01N 3/025 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
37.
Energy reclaiming system for electric forklift truck
The present disclosure relates to an energy reclaiming system for an electric forklift truck. The energy reclaiming system includes an electronic device operated by a motor when a working machine is raised and operated by a generator when the working machine is lowered, a hydraulic pump/motor connected to the electronic device and configured to perform two functions of a hydraulic pump and a hydraulic motor, a main control valve unit including a lift cylinder operating unit connected to the hydraulic pump/motor and configured to operate a lift cylinder and a secondary consumer operating unit connected to the hydraulic pump/motor and configured to operate a secondary consumer, and a control lever including a control valve configured to control the lift cylinder or the secondary consumer through the lift cylinder operating unit and the secondary consumer operating unit of the main control valve unit, respectively. The energy reclaiming system includes: a working fluid return line provided with a flow amount limiting valve configured to interrupt a flow of a return flow amount generated by the lift cylinder when the working machine (or fork carriage) is lowered; and an energy reclaiming unit installed in the working fluid return line and configured to, if a return flow amount generated when the working machine is lowered is smaller than a flow amount consumed by the secondary consumer, reclaim the return flow amount to an oil tank, and, if the return flow amount generated when the working machine is lowered is larger than the flow amount consumed by the secondary consumer, guide the return flow amount to the hydraulic pump/motor.
The present disclosure relates to an apparatus for controlling a raise speed of a working machine for heavy equipment that includes first and second pumps, a main control valve unit that includes two lift cylinder operation units connected with the first and second pumps and operating two lift cylinders and one tilt cylinder operation unit operating two tilt cylinders, a priority valve that is provided in a working fluid line between the second pump and the main control valve unit, and a lift lever that includes a remote control valve connected with the two lift cylinder operation units through a pilot oil line, respectively, and controlling the two lift cylinders through the two lift cylinder operation units, in which a valve control unit, which electrically controls the flow of pilot oil in proportion to the RPM of an engine to allow or stop the working fluid flowing from any one of the two lift cylinder operation units to the two lift cylinders, is disposed in any one of two pilot oil lines between the two lift cylinder operation units and the remote control valve of the lift lever.
F02D 29/04 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
A method for controlling a motor of an electrical forklift truck which includes at least one motor for traveling of the forklift truck or providing power to a pump that supplies power for operating a vehicle or oil to operational devices, a power module for controlling the power supply to the motors, and a control unit for controlling the power module and the motor, the method including the steps of: controlling to decelerate operating speed of the motor to be predetermined first decelerated speed by the control unit if a temperature of the motor and/or the power module increases and reaches a predetermined first level temperature value corresponding to the operating speed of the motor; and controlling to decelerate the operating speed of the motor to be predetermined second decelerated speed that is lower than the first decelerated speed by the control unit if the temperature of the motor and/or the power module increases in a state of the speed of the motor having been decelerated and reaches predetermined second-level temperature value that is higher than the first level temperature value and corresponds to the first decelerated speed. In this respect, the shutdown of the motor is postponed as long as possible so as to expend the operating time of the electrical forklift truck. Further, the shutdown of the motor can be postponed even without mounting the separate cooling apparatus, such as the cooling fan, so as to reduce the manufacturing cost.
B60W 20/00 - Control systems specially adapted for hybrid vehicles
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60K 1/00 - Arrangement or mounting of electrical propulsion units
H02P 1/00 - Arrangements for starting electric motors or dynamo-electric converters
41.
Battery storage device for vehicles and forklift with the same
A battery storage device for forklifts is used in storing a battery. The battery storage device includes a vehicle frame having a battery storage room, a front support plate provided on the vehicle frame for supporting a front surface of the battery received in the battery storage room, a rear support plate provided at a rear side of the battery storage room for supporting a rear surface of the battery received in the battery storage room, the rear support plate detachably fixed to the vehicle frame in such a manner that, when detached, the rear support plate becomes movable toward or away from the front support plate in conformity with a size of the battery, and a position adjustor for position-adjustably fixing the rear support plate in one position selected from a plurality of fixing positions.
A front wheel brake device for forklifts is used in applying brake to a front wheel attached to opposite lateral bottom sides of a mast assembly. The device includes a support bracket provided at the bottom sides of the mast assembly, a brake housing fixed to the support bracket and received within the front wheel, a wheel hub fixedly secured to the front wheel, an axle shaft rotatably provided within the brake housing and engaged with a shaft portion of the wheel hub for unitary rotation with the front wheel, brake discs axially movably fitted to the axle shaft for unitary rotation therewith, friction plates alternately arranged between the brake discs and fitted to the brake housing for movement in an axial direction of the axle shaft, and a piston provided within the brake housing for, when operated, pressing the friction plates against the brake discs.
Disclosed herein is a control apparatus for an engine-powered forklift. The control apparatus of the present invention includes a mode detecting means for detecting whether the forklift is in a traveling mode or a working mode, and a controller, which controls the engine of the forklift such that, when the forklift is in the traveling mode, the output of the engine is restricted from increasing to a preset output value or more, and, when the forklift is in the working mode, the output of the engine is allowed to increase to the preset output value or more.
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
A common use pedal device for automotive vehicles comprises a base plate and a pedal pivotably attached to the base plate and having a push rod extending downwards from an underneath surface of the pedal. A rotating member is mounted to the base plate in such a manner that the rotating member can be depressed and rotated by the push rod of the pedal, the rotating member having a pulling arm adapted to pull a manual operating cable in response to rotation of the rotating member. A rotation detecting sensor is provided on one side of the base plate for detecting the degree of rotation of the rotating member and then notifying an electronic control unit of the degree of rotation thus detected. This pedal device can be employed in common in a manually controlled pedal type vehicle and an electronically controlled pedal type vehicle.
patents