JP6161630B2 - 作業機用の推進回路と作業回路の組み合わせ - Google Patents
作業機用の推進回路と作業回路の組み合わせ Download PDFInfo
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- JP6161630B2 JP6161630B2 JP2014552267A JP2014552267A JP6161630B2 JP 6161630 B2 JP6161630 B2 JP 6161630B2 JP 2014552267 A JP2014552267 A JP 2014552267A JP 2014552267 A JP2014552267 A JP 2014552267A JP 6161630 B2 JP6161630 B2 JP 6161630B2
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- 239000012530 fluid Substances 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 14
- 238000005086 pumping Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—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
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2253—Controlling the travelling speed of vehicles, e.g. adjusting travelling speed according to implement loads, control of hydrostatic transmission
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2282—Systems using center bypass type changeover valves
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2289—Closed circuit
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2292—Systems with two or more pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
- F16H61/4096—Fluid exchange between hydrostatic circuits and external sources or consumers with pressure accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20561—Type of pump reversible
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20569—Type of pump capable of working as pump and motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/633—Electronic controllers using input signals representing a state of the prime mover, e.g. torque or rotational speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6333—Electronic controllers using input signals representing a state of the pressure source, e.g. swash plate angle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6343—Electronic controllers using input signals representing a temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
- F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Operation Control Of Excavators (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
駆動油圧ポンプは、原動機によって駆動されるように適合され、また、高圧力側と低圧力側を有する。油圧作業回路は、少なくとも1つのアクチュエータに接続されるように適合され、移動型作業車の作業用部品を駆動する。油圧推進回路は、推進油圧モータを含み、推進油圧モータは、移動型作業車のドライブトレーンに接続されるように適合される。油圧推進回路は、さらに、油圧アキュムレータを含む。回路セレクタは、油圧作業回路と油圧推進回路に、駆動油圧ポンプの高圧力側を選択的に接続する。油圧回路構造は、第1モード及び第2モードで動作可能である。第1モードにおいて、油圧推進回路は、駆動油圧ポンプの高圧力側に接続され、かつ、油圧作業回路は、駆動油圧ポンプの高圧力側から遮断される。第2モードにおいて、油圧作業回路は、駆動油圧ポンプの高圧力側に接続され、かつ、油圧推進回路は、駆動油圧ポンプの高圧力側から遮断される。油圧回路構造が第2モードである場合、油圧アキュムレータに貯蔵されているエネルギが用いられ、推進油圧モータを駆動し、移動型作業車を推進させることができる。
Claims (31)
- 移動型作業車用の油圧回路構造であって、
原動機によって駆動されるように適合され、高圧力側及び低圧力側を有する駆動油圧ポンプと、
少なくとも1つのアクチュエータに接続されるように適合され、前記移動型作業車の作業用部品を駆動する油圧作業回路と、
前記移動型作業車のドライブトレーンに接続されるように適合される推進油圧モータ,及び,油圧アキュムレータを含んだ油圧推進回路と、
前記油圧作業回路と前記油圧推進回路に、前記駆動油圧ポンプの高圧力側を選択的に接続する回路セレクタと、
を含み、
前記油圧回路構造は、
a)前記油圧推進回路が、前記駆動油圧ポンプの高圧力側に接続され、かつ、前記油圧作業回路が、前記駆動油圧ポンプの高圧力側から遮断される第1モード、及び、
b)前記油圧作業回路が、前記駆動油圧ポンプの高圧力側に接続され、かつ、前記油圧推進回路が、前記駆動油圧ポンプの高圧力側から遮断される第2モード、
で動作可能であり、
前記油圧回路構造が前記第2モードである場合、前記油圧アキュムレータに貯蔵されているエネルギが用いられ、前記推進油圧モータを駆動し、前記移動型作業車を推進させることができることを特徴とする油圧回路構造。 - 前記油圧作業回路と前記油圧推進回路との間の流体連通を提供するクロスオーバ油圧流路をさらに含み、前記クロスオーバ油圧流路を開閉するクロスオーババルブが設けられていることを特徴とする請求項1に記載の油圧回路構造。
- 前記クロスオーババルブは、前記クロスオーバ油圧流路を通過する流量を制御することを特徴とする請求項2に記載の油圧回路構造。
- 前記クロスオーバ油圧流路は、前記油圧アキュムレータに貯蔵されたエネルギを用いて、前記油圧作業回路の少なくとも1つのアクチュエータを駆動可能にすることを特徴とする請求項2に記載の油圧回路構造。
- 前記油圧回路構造は、前記油圧作業回路と前記油圧推進回路の双方が、前記駆動油圧ポンプの高圧力側から油圧流体の流れを全く受け取らない第3モードで動作可能であり、かつ、前記クロスオーバ油圧流路は、前記油圧アキュムレータに貯蔵されたエネルギを用いて、前記油圧作業回路の少なくとも1つのアクチュエータを駆動可能にし、前記油圧アキュムレータに貯蔵されたエネルギは、前記推進油圧モータを駆動することを特徴とする請求項2に記載の油圧回路構造。
- 前記推進油圧モータは、可変容量形油圧ポンプ/モータであり、前記油圧回路構造は、前記可変容量形油圧ポンプ/モータによって加圧された油圧流体を用いて、前記油圧アキュムレータをチャージするチャージモードで動作可能であることを特徴とする請求項1に記載の油圧回路構造。
- 前記移動型作業車が減速した場合、前記移動型作業車の運動エネルギは、追加の貯蔵エネルギに変換され、前記油圧アキュムレータ内に保存されることを特徴とする請求項6に記載の油圧回路構造。
- 前記駆動油圧ポンプは、油圧ポンプ/モータであり、かつ、前記油圧アキュムレータからの油圧流体を、前記油圧ポンプ/モータを駆動するために利用可能であることを特徴とする請求項1に記載の油圧回路構造。
- 前記油圧ポンプ/モータは、前記油圧ポンプ/モータが前記油圧アキュムレータからの油圧流体によって駆動される場合に、前記原動機を起動させてもよいことを特徴とする請求項8に記載の油圧回路構造。
- 前記回路セレクタは、1つのバルブを含むことを特徴とする請求項1に記載の油圧回路構造。
- 前記回路セレクタは、複数のバルブを含むことを特徴とする請求項1に記載の油圧回路構造。
- 前記油圧推進回路から前記油圧アキュムレータを選択的に遮断する遮断バルブをさらに含むことを特徴とする請求項1に記載の油圧回路構造。
- 前記油圧推進回路に流体連通する油圧ステアリング回路をさらに含むことを特徴とする請求項1に記載の油圧回路構造。
- 前記移動型作業車はフォークリフトであり、前記原動機は、前記駆動油圧ポンプに機械連結された燃焼機関であり、前記油圧作業回路は、前記少なくとも1つのアクチュエータに油圧連通され、かつ、前記少なくとも1つのアクチュエータは、前記フォークリフトのフォークをリフトするための第1油圧シリンダ,前記フォークをチルトするための第2油圧シリンダ,及び,前記フォークを横方向に移動させるための第3油圧シリンダを含むことを特徴とする請求項1に記載の油圧回路構造。
- 前記第1油圧シリンダはメインステージシリンダであり、前記少なくとも1つのアクチュエータは、さらに、セカンドステージの複数の油圧シリンダを含み、前記セカンドステ
ージの複数の油圧シリンダは、前記フォークリフトの前記フォークをリフトするための、少なくとも1つのセカンドステージシリンダを含むことを特徴とする請求項14に記載の油圧回路構造。 - 前記油圧推進回路の最大作動圧力は、前記油圧アキュムレータの作動圧力より高いことを特徴とする請求項12に記載の油圧回路構造。
- 前記油圧推進回路の最大作動圧力は、前記油圧アキュムレータの定格圧力より高いことを特徴とする請求項12に記載の油圧回路構造。
- 前記駆動油圧ポンプは、単に前記油圧回路構造の駆動油圧ポンプであることを特徴とする請求項1に記載の油圧回路構造。
- 前記駆動油圧ポンプは、チャージポンプを含むことを特徴とする請求項18に記載の油圧回路構造。
- 移動型作業車用の油圧回路構造であって、
少なくとも1つのアクチュエータに接続されるように適合され、前記移動型作業車の作業用部品を駆動する油圧作業回路と、
前記移動型作業車のドライブトレーンに接続されるように適合される推進油圧モータ,及び,油圧アキュムレータを含んだ油圧推進回路と、
前記油圧作業回路と前記油圧推進回路との間を選択的に流体連通するクロスオーバ油圧流路と、
を含み、
前記油圧回路構造は、前記油圧作業回路が前記油圧推進回路から油圧遮断される少なくとも第1モードで動作可能であり、前記油圧作業回路が原動機によって駆動され、前記推進油圧モータが前記油圧アキュムレータによって駆動され、
前記クロスオーバ油圧流路は、前記油圧推進回路の前記油圧アキュムレータから前記油圧作業回路へエネルギを伝達する手段をもたらすように構成されることを特徴とする油圧回路構造。 - 原動機によって駆動されるように適合された単一の油圧ポンプをさらに含むことを特徴とする請求項20に記載の油圧回路構造。
- 移動型作業車用の油圧回路構造であって、
少なくとも1つのアクチュエータに接続されるように適合され、前記移動型作業車の作業用部品を駆動する油圧作業回路と、
前記移動型作業車のドライブトレーンに接続されるように適合される推進油圧モータ,及び,油圧アキュムレータを含んだ油圧推進回路と、
原動機によって駆動されるように適合される駆動油圧ポンプと、
前記原動機によって駆動されるように適合された作業回路油圧ポンプと、
前記原動機と前記駆動油圧ポンプとの間に作動連結されるクラッチとを含み、
前記油圧回路構造は、前記油圧作業回路が前記油圧推進回路から油圧遮断される少なくとも1つのモードで動作可能であり、
前記油圧回路構造は、前記油圧推進回路の前記油圧アキュムレータから前記油圧作業回路へエネルギを伝達する手段を含み、
前記油圧推進回路の前記油圧アキュムレータから前記油圧作業回路へエネルギを伝達する前記手段は、前記駆動油圧ポンプから前記作業回路油圧ポンプへ動力伝達する軸動力を含み、
前記軸動力が前記駆動油圧ポンプから前記作業回路油圧ポンプへ動力伝達する場合、前記クラッチは、前記駆動油圧ポンプから前記原動機を切り離すことができることを特徴とする油圧回路構造。 - クロスオーババルブが、前記クロスオーバ油圧流路を開閉するように設けられることを特徴とする請求項20に記載の油圧回路構造。
- 前記油圧推進回路の前記油圧アキュムレータから前記油圧作業回路へエネルギを伝達する前記手段は、前記クロスオーバ油圧流路を開通させることを含むことを特徴とする請求項23に記載の油圧回路構造。
- 前記駆動油圧ポンプは、単に前記油圧回路構造の駆動油圧ポンプであることを特徴とする請求項22に記載の油圧回路構造。
- 前記駆動油圧ポンプは、チャージポンプを含むことを特徴とする請求項25に記載の油
圧回路構造。 - 移動型作業車用の油圧回路構造であって、
原動機に回転シャフトを選択的に接続させるクラッチと、
少なくとも1つのアクチュエータに接続されるように適合され、前記移動型作業車の作業用部品を駆動し、前記回転シャフトに取り付けられた第1回転部材によって油圧駆動される作業回路と、
前記作業回路に流体連通しない油圧推進回路と、
を含み、
前記油圧推進回路は、前記移動型作業車のドライブトレーンに接続されるように適合される推進油圧モータを含み、前記油圧推進回路は、さらに、油圧アキュムレータを含み、かつ、前記油圧推進回路は、前記回転シャフトに取り付けられた第2回転部材によって油圧駆動され、前記第2回転部材は、ポンプ/モータであり、
前記第2回転部材をモータとして動作させることにより、前記油圧アキュムレータからのエネルギは、前記回転シャフトを介して前記第1回転部材へ伝達され、前記作業回路を油圧駆動することができ、
前記クラッチは、前記アキュムレータからのエネルギが前記回転シャフトを介して前記第1回転部材へ伝達された場合に、前記原動機から前記回転シャフトを選択的に切り離すことを特徴とする油圧回路構造。 - 前記駆動油圧ポンプは、少なくとも前記油圧作業回路と前記油圧推進回路を駆動するように適合された前記油圧回路構造における単一の油圧ポンプであることを特徴とする請求項1に記載の油圧回路構造。
- 前記単一の油圧ポンプは、チャージポンプを含むことを特徴とする請求項28に記載の油圧回路構造。
- 前記油圧作業回路が前記油圧推進回路から油圧エネルギを受け取る第2モードをさらに含むことを特徴とする請求項20に記載の油圧回路構造。
- 前記単一の油圧ポンプは、チャージポンプを含むことを特徴とする請求項21に記載の油圧回路構造。
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2013
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- 2013-01-09 JP JP2014552267A patent/JP6161630B2/ja not_active Expired - Fee Related
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- 2013-01-09 CN CN201380012183.2A patent/CN104203799B/zh active Active
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CN104203799A (zh) | 2014-12-10 |
WO2013106431A3 (en) | 2013-09-26 |
JP6049758B2 (ja) | 2016-12-21 |
JP2015506322A (ja) | 2015-03-02 |
EP2802528B1 (en) | 2020-12-02 |
US20130195681A1 (en) | 2013-08-01 |
KR20140110063A (ko) | 2014-09-16 |
US9989042B2 (en) | 2018-06-05 |
CN104039682A (zh) | 2014-09-10 |
JP2015509170A (ja) | 2015-03-26 |
WO2013106436A4 (en) | 2013-11-21 |
WO2013106431A2 (en) | 2013-07-18 |
US9453503B2 (en) | 2016-09-27 |
CN104039682B (zh) | 2017-04-12 |
KR101956959B1 (ko) | 2019-03-11 |
EP2802529A2 (en) | 2014-11-19 |
WO2013106436A3 (en) | 2013-10-03 |
CN104203799B (zh) | 2016-08-24 |
KR20140109994A (ko) | 2014-09-16 |
EP2802528A2 (en) | 2014-11-19 |
WO2013106436A2 (en) | 2013-07-18 |
US20130280111A1 (en) | 2013-10-24 |
EP2802529B1 (en) | 2023-09-27 |
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