WO2016151965A1 - ハイブリッド式作業車両 - Google Patents
ハイブリッド式作業車両 Download PDFInfo
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- WO2016151965A1 WO2016151965A1 PCT/JP2015/085580 JP2015085580W WO2016151965A1 WO 2016151965 A1 WO2016151965 A1 WO 2016151965A1 JP 2015085580 W JP2015085580 W JP 2015085580W WO 2016151965 A1 WO2016151965 A1 WO 2016151965A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
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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
- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
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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
- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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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
- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—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 limits; in order to prevent overcharging or battery depletion
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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
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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
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2062—Control of propulsion units
- E02F9/2075—Control of propulsion units of the hybrid type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/17—Construction vehicles, e.g. graders, excavators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like
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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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- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/93—Conjoint control of different elements
Definitions
- the present invention relates to a hybrid work vehicle.
- a wheel loader as a vehicle that is expected to have a relatively large fuel consumption reduction effect when hybridized.
- a conventional wheel loader transmits and receives engine power to a tire via a torque converter (torque converter) and a transmission (T / M) and travels with a bucket portion of a hydraulic working unit attached to the front of the vehicle. It is a work vehicle that excavates and transports etc.
- torque converter torque converter
- T / M transmission
- the traveling drive portion of such a wheel loader it is possible to improve the power transmission efficiency of the traveling portion including the torque converter and the transmission to the power transmission efficiency by electricity. Further, since the wheel loader repeats the starting and stopping traveling operations frequently during the work, when the traveling drive part is electrified, regenerative power recovery during braking can be expected from the traveling motor.
- the wheel loader when excavating an object such as a gravel mountain with a wheel loader, first, the wheel loader is advanced relative to the object to be excavated, and the bucket is inserted into the object to be excavated to load gravel and the like. Go backwards while lifting the bucket.
- the present invention has been made based on the above-described matters, and an object of the present invention is to provide a hybrid work vehicle in which a travel drive unit is electrified, by limiting the output of the power storage device to the required power of the vehicle.
- An object of the present invention is to provide a hybrid work vehicle with high work efficiency even when output power is limited.
- the present application includes a plurality of means for solving the above-described problems.
- a power source including an engine and a power storage device, a generator motor connected to the output shaft of the engine, wheels, A hydraulic pump connected to a rotating shaft of the generator motor, and a traveling unit that has a traveling motor that drives the wheels, an inverter that transfers electric power from the power storage device to each of the generator motor and the traveling motor.
- a hydraulic working section having a plurality of hydraulic actuators driven by pressure oil supplied from the hydraulic pump, an operation lever device for commanding driving of the plurality of hydraulic actuators, and controlling the number of revolutions of the engine
- the operation determination unit for determining the current operation state of the vehicle, the engine output value and the power storage device output value are input, the power of the travel unit and the hydraulic pressure are input.
- a control unit having a power calculation unit that calculates and controls the power of the working unit, wherein the control unit is configured such that the operation determination unit indicates a current operation state of the vehicle by combining the traveling unit and the hydraulic working unit.
- the output of the traveling unit is set so that the power calculation unit has a preset ratio distribution of the total value of the output value of the engine and the output value of the power storage device.
- the output of the hydraulic working unit is calculated and controlled.
- the work efficiency is improved.
- a high-hybrid work vehicle can be provided.
- FIG. 1 is a system configuration diagram of a wheel loader to which a first embodiment of a hybrid work vehicle of the present invention is applied. It is a typical system block diagram of the conventional wheel loader. It is a block diagram of the control apparatus which comprises 1st Embodiment of the hybrid type work vehicle of this invention. It is a block diagram which shows the structure of the hybrid control apparatus which comprises 1st Embodiment of the hybrid type work vehicle of this invention. It is a schematic diagram which shows the power flow of the hybrid system in 1st Embodiment of the hybrid type work vehicle of this invention. It is a schematic diagram explaining the V-shaped excavation loading work which is an example of the work pattern of a wheel loader.
- FIG. 1 is a system configuration diagram of a hybrid wheel loader to which the first embodiment of the hybrid work vehicle of the present invention is applied
- FIG. 2 is a typical system configuration diagram of a conventional wheel loader
- FIG. 3 is a diagram of the present invention.
- FIG. 4 is a block diagram showing the configuration of the hybrid control device constituting the first embodiment of the hybrid work vehicle of the present invention.
- FIG. 4 is a block diagram showing the configuration of the control device constituting the first embodiment of the hybrid work vehicle. is there.
- the hybrid wheel loader shown in FIG. 1 includes an engine 1 and a power storage device 11 as power sources, and as a main drive unit, an electrified traveling unit (wheel portion) and a front hydraulic working unit (lift / bucket portion). And have.
- the traveling unit of the hybrid wheel loader includes a generator motor (motor / generator (M / G)) 6 connected to the output shaft of the engine 1, an inverter 7 that controls the generator motor 6, and four wheels 61.
- Body 60, traveling motor 9 that is attached to propeller shaft 8 of traveling body 60 and drives four wheels 61, inverter 10 that controls traveling motor 9, and step-up / step-down control of the output voltage of power storage device 11 are performed.
- a DCDC converter 12 and a control device 200 are provided.
- the hydraulic working section of the hybrid wheel loader includes a variable displacement hydraulic pump 4 connected to the rotating shaft of the generator motor 6, a working device 50 having a bucket and a lift arm (not shown) and attached to the front of the vehicle body.
- a hydraulic actuator bucket cylinder 51, lift cylinder 52 and steering cylinder 53 driven by pressure oil supplied from the hydraulic pump 4 via the control valve 55, and for driving the hydraulic actuators 51, 52, 53
- An operation device operation lever device 56 and a steering wheel (not shown)) that outputs an operation signal according to the operation amount is provided.
- the bucket cylinder 51 and the lift cylinder 52 are driven based on an operation signal (hydraulic signal) output in accordance with the operation amount of the operation lever device 56 installed in the cab.
- the lift cylinder 52 is attached to a lift arm fixed to the front of the vehicle body so as to be rotatable, and expands and contracts based on an operation signal from the operation lever device 56 to rotate the lift arm up and down.
- the bucket cylinder 51 is attached to a bucket that is rotatably fixed to the tip of the lift arm, and expands and contracts based on an operation signal from the operation lever device 56 to rotate the bucket up and down.
- the steering cylinder 53 is driven based on an operation signal (hydraulic signal) output in accordance with the steering amount of a steering wheel (not shown) installed in the cab.
- the steering cylinder 53 is connected to each wheel 61 and expands and contracts based on an operation signal from the steering wheel to change the steering angle of the wheel 61.
- a speed sensor 62 for detecting the rotational speed is disposed in the vicinity of the wheel 61.
- the power storage device 11 is preferably a large capacity power storage device such as a lithium battery or an electric double layer capacitor.
- the power storage device 11 according to the present embodiment performs a step-up / step-down control of the system voltage of the DC bus unit by the DCDC converter 12, and the DC power is transferred between the inverters 7 and 10 (that is, the generator motor 6 and the travel motor 9). Give and receive.
- the hybrid type wheel loader configured as described above, work corresponding to the purpose is performed by appropriately supplying pressure oil from the variable displacement hydraulic pump 4 to the work device 50 for performing excavation work such as earth and sand. . Further, the traveling operation of the traveling body 60 is performed by driving the traveling motor 9 mainly using the power generated by the generator motor 6 by the power of the engine 1. At that time, the power storage device 11 absorbs regenerative power generated by the traveling motor 9 during vehicle braking, or performs output assist for the engine 1 by supplying the stored power to the generator motor 6 or the traveling motor 9. This contributes to reduction of vehicle energy consumption and downsizing of the engine 1. Note that the hybrid system targeted by the present invention is not limited to the configuration example of FIG. 1, and can be applied to various system configurations such as a traveling unit parallel type.
- the conventional wheel loader shown in FIG. 2 has a traveling part (wheel part) and a front hydraulic working part (lift / bucket part) as main drive parts, but a torque converter (torque converter) 2 and a transmission.
- the power of the engine 1 is transmitted to the wheel 61 via (T / M) 3 to travel, and the working device 50 driven by the hydraulic pump 4 excavates and transports earth and sand. Since the power transmission efficiency of the torque converter is inferior to the power transmission efficiency by electricity, if the traveling drive portion of the wheel loader shown in FIG. 2 is motorized (including a parallel hybrid configuration), the power transmission efficiency from the engine 1 is improved. Is possible.
- the wheel loader in operation frequently repeats the start / stop travel operation, when the travel drive part is electrified as described above, it is possible to recover the regenerative power during braking from the travel motor 9. become.
- the fuel consumption can generally be reduced by several tens of percent.
- the hybrid wheel loader of the present embodiment includes a hybrid control device 20 that is a controller that controls the energy flow, power flow, and the like of the entire hybrid system shown in FIG.
- a hydraulic control device 21 that controls the control valve (C / V) 55 and the hydraulic pump 4
- an engine control device 22 that controls the engine 1
- an inverter control device 23 that controls the inverters 7 and 10
- a DCDC converter A converter control device 24 for controlling 12 is mounted.
- Each of the control devices 20, 21, 22, 23, and 24 includes a storage device (RAM, ROM, etc.) (not shown) in which processing contents and processing results are stored, and a process for executing the processing stored in the storage device A device (CPU or the like) (not shown) is provided. Further, the control devices 20, 21, 22, 23, and 24 are connected to each other via a CAN (Controller Area ⁇ Network), and transmit and receive command values and state quantities of the respective devices. As shown in FIG. 3, the hybrid control device 20 is positioned above each controller of the hydraulic control device 21, the engine control device 22, the inverter control device 23, and the converter control device 24, and controls the entire system. A specific operation command is given to each of the other control devices 21 to 24 so that the entire system exhibits the highest work performance.
- CAN Controller Area ⁇ Network
- each of the control devices 20 to 24 shown in FIG. 3 shows only a controller necessary for controlling each drive part of the hybrid system shown in FIG. In order to actually establish the vehicle, a monitor and an information system controller are required in addition, but they are not shown because they are not directly related to the present invention. Further, as shown in FIG. 3, each of the control devices 20 to 24 does not need to be separate from other control devices, and two or more control functions may be mounted on a certain control device.
- the hybrid control device 20 includes an operation determination unit 30 that determines the current operation content of the wheel loader, and a power calculation unit 31 that distributes the output of the engine 1 and the output of the power storage device 11 to each drive unit.
- An engine control unit 32 that determines a rotational speed command of the engine 1 according to a required output value of the entire vehicle, an M / G control unit 33 that determines a torque command of the generator motor 6 according to a power generation request value, Calculated from the hydraulic control unit 34 for calculating the tilt angle command value of the hydraulic pump 4 from the power demand value of the hydraulic pump 4 calculated from the operation amount of the lever device 56, the accelerator / brake pedal operation amount and the current vehicle speed.
- a travel control unit 35 is provided that calculates a torque command of the travel motor 9 from the travel power request value.
- the hybrid control device 20 includes an operation signal output from the operation lever device 56, an amount of depression of an accelerator pedal and a brake pedal installed in the cab, and an F / for selecting forward or backward as the traveling direction of the vehicle.
- the rotational speed of the traveling motor 9 output from is input.
- the accelerator pedal controls the number of revolutions of the engine 1, and the brake pedal controls a braking device (not shown) of the wheel 61.
- various state quantities such as voltage and current of the power storage device 11 and power limit values are input from the power storage device 11 to the power calculation unit 31 so that the state of the power storage device 11 does not become an abnormal state such as overdischarge or overcharge.
- charge / discharge control is performed.
- the hybrid system in the present embodiment has the engine 1 and the power storage device 11 as a power source for driving the vehicle.
- the power calculation unit 31 of the hybrid control device 20 mainly uses the engine 1 and the power storage device 11 for the required power of the vehicle corresponding to the sum of the required power value Pf of the work device 50 and the required power value Prun of the electric motor 9 for traveling.
- the final power of the traveling unit and the power of the hydraulic working unit are determined according to the state.
- FIG. 5 is a schematic diagram showing a power flow of the hybrid system in the first embodiment of the hybrid work vehicle of the present invention.
- Pmg_in and Pmg_out indicate the input power and output power of the generator motor 6, respectively.
- Pe and Pc indicate the output value of the engine 1 and the output value of the power storage device 11, respectively.
- the power calculation unit 31 of the hybrid control device 20 in the present embodiment uses the engine output Pe and the power storage device output Pc as the output Pf of the work device 50 and the traveling motor according to the following formulas (1) and (2). 9, and the final power and hydraulic work of the traveling unit according to the current operation content of the wheel loader determined by the operation determination unit 30 and the states of the engine 1 and the power storage device 11. Determine the power of the department.
- the hybrid control device 20 gives command values to the working device 50 and the traveling motor 9 according to the final power of the traveling unit and the power of the hydraulic working unit.
- Pf Pe ⁇ Pmg_in (1)
- Prun Pmg_out + Pc (2)
- the wheel loader which is the subject of the present invention has several basic operation patterns, and the hybrid control device 20 needs to operate the vehicle optimally according to those operations.
- the most typical work pattern is V-shaped excavation loading work.
- FIG. 6 is a schematic diagram for explaining the V-shaped excavation and loading work, which is an example of the work pattern of the wheel loader.
- the V-shaped excavation and loading work is a main operation pattern that occupies about 70% or more of the actual work of the wheel loader. This is because the wheel loader is advanced with respect to the object to be excavated, such as gravel mountain, the bucket is inserted into the object to be excavated, and the excavation work to load the transport object such as gravel into the bucket and the completion of the excavation work. Later, while lifting the bucket, the vehicle moves backward to return to the original position, redirects the traveling direction of the wheel loader to the transport vehicle, and moves forward to raise the bucket to the vessel's vessel, and gravel in the bucket.
- the wheel loader repeatedly performs the excavation and loading work while drawing the V-shaped locus in this way.
- FIG. 7 is a schematic diagram for explaining the traveling unit power and the hydraulic working unit power during excavation work in the first embodiment of the hybrid work vehicle of the present invention.
- the hybrid wheel loader particularly for the excavation work, it is necessary to appropriately perform power distribution between the traveling unit power and the hydraulic working unit power of the work device 50 shown in FIG.
- the traveling unit power is excessively distributed with respect to the hydraulic working unit power
- the hybrid wheel loader will thrust the bucket too far into the excavation object, such as excessive gravel. Place the goods in the bucket.
- the hydraulic working unit power is relatively small with respect to the traveling unit power, there is a possibility that the bucket cannot be lifted up.
- the traveling unit power is excessively distributed with respect to the hydraulic working unit power
- the hybrid wheel loader does not thrust the bucket into the excavation object so much and the hydraulic working unit power is relatively large with respect to the traveling unit power. Therefore, there is a possibility that the rising speed of the bucket becomes large. As a result, it is considered that the transported goods cannot be efficiently loaded.
- the hybrid wheel loader it is effective to set the power of the traveling unit and the hydraulic working unit power of the working device 50 in advance so as to be optimally distributed in order to increase working efficiency during the excavation work described above. is there. It is considered that the optimum distribution ratio of the traveling section power and the hydraulic working section power is determined most effectively from the work performance in the actual vehicle, but it is not fixed to a specific distribution ratio and is allowed to some extent. It does not matter even if it has a fluctuation range. However, in excavation work, it is clear that work efficiency decreases if power distribution is biased to either the traveling part or the hydraulic work part.
- the hybrid wheel loader in order to improve the working efficiency, it is necessary to optimally distribute the power between the traveling unit and the hydraulic working unit according to the working state at that time.
- the hybrid wheel loader according to the present embodiment includes an operation determination unit 30 and a power calculation unit 31 in the hybrid control device 20 in order to realize such an operation.
- FIG. 8 is a block diagram showing the input / output relationship between the operation determination unit and the power calculation unit constituting the first embodiment of the hybrid work vehicle of the present invention.
- the operation determination unit 30 includes information on the operation and work of the vehicle, that is, the operation amount of the operation lever device 56, the depression amount of the accelerator pedal and the brake pedal, the switch signal of the F / R switch, and the rotation of the electric motor 9 for traveling. The number, the vehicle speed, and the bucket position signal are input.
- the operation determination unit 30 determines the current operation content of the wheel loader based on the input information. Further, the operation determination unit 30 outputs the determined operation content of the wheel loader, the hydraulic power request value Pf, and the travel power request value Prun to the power calculation unit 31.
- the power calculation unit 31 receives an output restriction signal from the power storage device 11 and an engine output signal from the engine 1. The power calculation unit 31 determines the final power of the traveling unit and the power of the hydraulic working unit according to these input signals.
- FIG. 9 is a block diagram showing the configuration and processing contents of the operation determination unit constituting the first embodiment of the hybrid work vehicle of the present invention.
- the operation determination unit 30 includes a hydraulic power request calculation unit 40, a travel power request calculation unit 41, and an operation calculation unit 42.
- the hydraulic power request calculation unit 40 inputs the operation amount of the operation lever device 56 and the vehicle speed, and calculates the hydraulic power request value Pf.
- the calculation method for example, the operation of the working device 50 according to the operation amount is defined, and the power of the hydraulic pump 4 that can realize the operation is determined.
- the method for determining the power of the hydraulic pump 4 is not particularly limited.
- the power magnitude is determined in advance according to the operation amount of the operation lever device 56, and the table is searched in the control device. In this case, there is an advantage that a tuning operation can be easily performed.
- the travel power request calculation unit 41 inputs the accelerator pedal and brake pedal depression amounts, the F / R switch switch signal, the rotational speed of the travel motor 9, and the vehicle speed, and calculates the travel power request value Prun.
- the calculation method here may also be determined by determining power corresponding to each pedal depression amount in the same manner as the hydraulic power requirement value Pf and performing a table search or the like in the control device.
- the operation calculation unit 42 receives the vehicle speed, the bucket position signal, the hydraulic power request value Pf calculated by the hydraulic power request calculation unit 40, and the travel power request value Prun calculated by the travel power request calculation unit 41.
- the operation content of the wheel loader is determined. Specifically, each input value is compared with a threshold value of the hydraulic power requirement value Pf for a preset vehicle speed, a threshold value of the traveling power requirement value Prun, and a threshold value of the bucket position. It is determined that it is excavation work on the condition that all exceeded the threshold value.
- the excavation work of the wheel loader is a combined operation of the traveling unit and the working unit in which the bucket position is lowered to advance the vehicle and raise the working device 50. Therefore, as described above, the excavation work of the wheel loader is determined by monitoring the bucket position, the acceleration state of the vehicle, and the hydraulic power request value Pf and the travel power request value Prun requested by the operator's operation. It becomes possible to do.
- an output limit signal from the power storage device 11 and an engine output signal from the engine 1 are input to the power calculation unit 31.
- the power calculation unit 31 first performs the above-described proper distribution with respect to the hydraulic power request value Pf, the travel power request value Prun, and the engine output.
- the traveling unit power and the working unit power are determined.
- the final traveling unit power and the hydraulic working unit power are determined and output by multiplying by a coefficient corresponding to the limit value.
- the power of the traveling unit and the hydraulic working unit is distributed at an appropriate ratio.
- work efficiency during excavation work is improved. For example, if the output ratio of the traveling unit and hydraulic working unit during excavation is set in advance to 6: 4 to 4: 6, etc., and the excavation object (ground) is hard, compare it with the output of the hydraulic working unit. When the output of the traveling unit is increased and the object to be excavated (natural ground) is soft, the output of the hydraulic working unit is increased compared to the output of the traveling unit.
- the output from the power storage device 11 is limited when the temperature of the lithium battery rises and exceeds the threshold value, or when the output current value exceeds the threshold value. Limit battery output when exceeded.
- the power calculation unit 31 shown in FIG. 8 inputs the operation content (excavation work) of the wheel loader, the travel power request value Prun, and the hydraulic power request value Pf. Therefore, instead of limiting only the traveling unit power command, the hydraulic working unit power command is also adjusted so as to maintain an appropriate ratio between the traveling unit power and the hydraulic working unit power set in advance. As a result, a decrease in work efficiency in excavation work can be prevented.
- the tilt angle of the variable displacement hydraulic pump 4 from the hydraulic control unit 34 of the hybrid control device 20 shown in FIG. Control is performed to lower the value.
- FIG. 10 is a flowchart showing the processing procedure of the hybrid control device constituting the first embodiment of the hybrid work vehicle of the present invention.
- the operation determination unit 30 of the hybrid control device 20 determines whether or not the current work content of the wheel loader is excavation work (step S100). Specifically, in the motion calculation unit 42 of the motion determination unit 30, the vehicle speed, the bucket position signal, the hydraulic power request value Pf, and the travel power request value Prun are input, and the input signal and each predetermined threshold value are respectively input. By comparing, it is determined whether or not the current operation content of the wheel loader is excavation work. The operation determination unit 30 proceeds to (Step S101) when the current operation content of the wheel loader is determined to be excavation work, and ends the process otherwise.
- the power calculation unit 31 of the hybrid control device 20 determines whether or not the output limitation of the power storage device 11 has occurred (step S101). Specifically, the power calculation unit 31 makes a determination based on the presence or absence of an output restriction command signal from the power storage device. For example, the output restriction command is output when the temperature of the lithium battery rises and exceeds a threshold value, or when the value of the output current exceeds the threshold value. If the power calculation unit 31 determines that the output limitation of the power storage device 11 has occurred, the power calculation unit 31 proceeds to (Step S102), and otherwise ends the processing.
- the power calculation unit 31 of the hybrid control device 20 limits the traveling unit power (step S102). Specifically, the power calculation unit 31 limits the travel power request value Prun according to the output limit amount from the power storage device 11 and outputs the travel power request value Prun as a travel unit power command.
- the power calculation unit 31 of the hybrid control device 20 limits the hydraulic working unit power so that the ratio between the traveling unit power and the hydraulic working unit power is set in advance (step S103). More specifically, the power calculation unit 31 determines the hydraulic working unit power by limiting the hydraulic power request value Pf so as to have a predetermined power ratio with the output limited travel unit power command, and the hydraulic working unit power command. Output as.
- the power ratio between the traveling unit and the hydraulic working unit can be optimally controlled even when the power storage device 11 is limited in output. This makes it possible to improve the work efficiency under the output restriction.
- the hybrid is achieved by limiting the output of the power storage device 11 to the required power of the vehicle. Even when the output power of the system is limited, a hybrid work vehicle with high work efficiency can be provided.
- FIG. 11 is a flowchart showing the processing procedure of the hybrid control device constituting the second embodiment of the hybrid work vehicle of the present invention.
- the configuration and operation method of the hybrid work vehicle in the present embodiment are substantially the same as those in the first embodiment.
- the first embodiment is directed to a hybrid system that includes a large-capacity power storage device 11 and is designed on the assumption that the power of the power storage device 11 is used in normal operation (the engine 1 is downsized).
- the second embodiment is different from the second embodiment in that it includes an engine 1 having a somewhat large capacity, and the power of the power storage device 11 is intended for a hybrid system that is used only for assisting when the power of the engine 1 is insufficient.
- FIG. 11 is a flowchart showing the processing procedure of the hybrid control device constituting the second embodiment of the hybrid work vehicle of the present invention.
- the operation determination unit 30 of the hybrid control device 20 determines whether or not the current work content of the wheel loader is excavation work (step S110). Specifically, in the motion calculation unit 42 of the motion determination unit 30, the vehicle speed, the bucket position signal, the hydraulic power request value Pf, and the travel power request value Prun are input, and the input signal and each predetermined threshold value are respectively input. By comparing, it is determined whether or not the current operation content of the wheel loader is excavation work. The operation determination unit 30 proceeds to (Step S111) when the current operation content of the wheel loader is determined to be excavation work, and ends the process otherwise.
- the power calculation unit 31 of the hybrid control device 20 determines whether or not the output limitation of the power storage device 11 has occurred (step S111). Specifically, the power calculation unit 31 makes a determination based on the presence or absence of an output restriction command signal from the power storage device. For example, the output restriction command is output when the temperature of the lithium battery rises and exceeds a threshold value, or when the value of the output current exceeds the threshold value. The power calculation unit 31 proceeds to (Step S112) when determining that the output restriction of the power storage device 11 has occurred, and ends the process otherwise.
- the power calculation unit 31 of the hybrid control device 20 determines whether or not the engine 1 can output the output restriction of the power storage device 11 (step S112). Specifically, in the power calculation unit 31, whether or not the engine 1 can output the limit for the output limit from the power storage device 11 (whether or not the current output of the engine 1 has a margin) is determined. judge. The power calculation unit 31 proceeds to (step S113) when it is determined that the engine 1 can output the output restriction of the power storage device 11, and proceeds to (step S115) otherwise.
- the power calculation unit 31 of the hybrid control device 20 compensates the output by the engine 1 and determines the traveling unit power (step S113). Specifically, by increasing the output of the engine 1, the traveling unit power is determined while compensating for the output limit of the power storage device 11.
- Step S112 when it is determined that the engine 1 cannot output the output of the power storage device 11, the power calculation unit 31 of the hybrid control device 20 limits the travel unit power (Step S115). Specifically, the power calculation unit 31 limits the travel power request value Prun according to the output limit amount from the power storage device 11 and outputs the travel power request value Prun as a travel unit power command.
- the power calculation unit 31 of the hybrid control device 20 limits the hydraulic working unit power so that the ratio between the traveling unit power and the hydraulic working unit power is set in advance (step S114). Specifically, in the power calculation unit 31, the hydraulic power request value Pf is adjusted so that the predetermined power ratio with the travel unit power command whose output is limited or the output compensated travel unit power command and the hydraulic work unit power is adjusted. Is output as a hydraulic work unit power command.
- the wheel loader even when the power storage device 11 is limited in output, the wheel loader has high work efficiency without limiting the power of the vehicle itself. Can be provided.
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Abstract
Description
Pf = Pe - Pmg_in …式(1)
Prun = Pmg_out + Pc …式(2)
Claims (4)
- エンジンと蓄電装置とからなる動力源と、
前記エンジンの出力軸に連結された発電電動機と,車輪と,前記車輪を駆動する走行用電動機と,前記発電電動機及び前記走行用電動機のそれぞれに前記蓄電装置からの電力を授受するインバータとを有する走行部と、
前記発電電動機の回転軸に連結された油圧ポンプと,前記油圧ポンプから供給される圧油によって駆動される複数の油圧アクチュエータと,前記複数の油圧アクチュエータの駆動を指令する操作レバー装置とを有する油圧作業部と、
前記エンジンの回転数を制御するアクセルペダルと、
前記車輪の制動装置を制御するブレーキペダルと、
前記操作レバー装置の操作量と前記アクセルペダル及び前記ブレーキペダルの踏み込み量と車速とを入力し、現在の車両の動作状態を判定する動作判定部と,前記エンジンの出力値と前記蓄電装置の出力値とを入力し、前記走行部の動力と前記油圧作業部の動力とを算出し制御する動力演算部とを有する制御装置とを備え、
前記制御装置は、前記動作判定部が現在の車両の動作状態を前記走行部と前記油圧作業部との複合動作である掘削作業であると判定したとき、前記動力演算部が前記エンジンの出力値と前記蓄電装置の出力値の合計値を、予め設定された比率配分となるように、前記走行部の出力と前記油圧作業部の出力を算出し制御する
ことを特徴とするハイブリッド式作業車両。 - 請求項1に記載のハイブリッド式作業車両において、
前記制御装置の動力演算部は、前記蓄電装置からの出力制限信号をさらに入力し、
前記制御装置は、前記動作判定部が現在の車両の動作状態を前記走行部と前記油圧作業部との複合動作である掘削作業であると判定したとき、前記動力演算部が前記出力制限信号に応じて前記走行部の出力を制限し、前記制限された走行部の出力の大きさに応じて前記油圧作業部の出力を算出し制御する
ことを特徴とするハイブリッド式作業車両。 - 請求項1に記載のハイブリッド式作業車両において、
前記制御装置の動力演算部は、前記蓄電装置からの出力制限信号をさらに入力し、
前記制御装置は、前記動作判定部が現在の車両の動作状態を前記走行部と前記油圧作業部との複合動作である掘削作業であると判定したとき、前記動力演算部が前記出力制限信号の分を前記エンジンの出力の増加で補償し、前記エンジンの出力値と前記蓄電装置の出力値の合計値を、予め設定された比率配分となるように、前記走行部の出力と前記油圧作業部の出力を算出し制御する
ことを特徴とするハイブリッド式作業車両。 - 請求項1乃至3のいずれか1項に記載のハイブリッド式作業車両において、
車両の進行方向として前進又は後退を選択するための前後進スイッチをさらに備え、
前記動作判定部は、前記前後進スイッチの信号と、前記車速に替えて前記インバータからの前記走行用電動機の回転数を入力した
ことを特徴とするハイブリッド式作業車両。
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CN201580077779.XA CN107428336B (zh) | 2015-03-25 | 2015-12-18 | 混合动力式作业车辆 |
JP2017507342A JP6434128B2 (ja) | 2015-03-25 | 2015-12-18 | ハイブリッド式作業車両 |
KR1020177025493A KR20170117151A (ko) | 2015-03-25 | 2015-12-18 | 하이브리드식 작업 차량 |
EP15886517.0A EP3275753B1 (en) | 2015-03-25 | 2015-12-18 | Hybrid working vehicle |
US15/560,936 US10207700B2 (en) | 2015-03-25 | 2015-12-18 | Hybrid type work vehicle |
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2015
- 2015-12-18 KR KR1020177025493A patent/KR20170117151A/ko not_active Application Discontinuation
- 2015-12-18 CN CN201580077779.XA patent/CN107428336B/zh active Active
- 2015-12-18 EP EP15886517.0A patent/EP3275753B1/en active Active
- 2015-12-18 WO PCT/JP2015/085580 patent/WO2016151965A1/ja active Application Filing
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JP2005009381A (ja) * | 2003-06-18 | 2005-01-13 | Hitachi Constr Mach Co Ltd | ハイブリッド式建設機械 |
WO2012114782A1 (ja) * | 2011-02-22 | 2012-08-30 | 日立建機株式会社 | ホイールローダ |
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WO2019037869A1 (en) * | 2017-08-25 | 2019-02-28 | Volvo Construction Equipment Ab | DRIVE SYSTEM AND METHOD FOR CONTROLLING A DRIVE SYSTEM OF A CONSTRUCTION MACHINE |
US20210372079A1 (en) * | 2019-02-15 | 2021-12-02 | Sumitomo Heavy Industries, Ltd. | Shovel and system |
JP2020153158A (ja) * | 2019-03-20 | 2020-09-24 | 日立建機株式会社 | ホイールローダ |
JP7085510B2 (ja) | 2019-03-20 | 2022-06-16 | 日立建機株式会社 | ホイールローダ |
WO2022034825A1 (ja) * | 2020-08-11 | 2022-02-17 | 日立建機株式会社 | 作業車両 |
JP2022032174A (ja) * | 2020-08-11 | 2022-02-25 | 日立建機株式会社 | 作業車両 |
JP7130018B2 (ja) | 2020-08-11 | 2022-09-02 | 日立建機株式会社 | 作業車両 |
Also Published As
Publication number | Publication date |
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CN107428336A (zh) | 2017-12-01 |
KR20170117151A (ko) | 2017-10-20 |
CN107428336B (zh) | 2019-08-06 |
EP3275753A4 (en) | 2018-11-07 |
US20180079404A1 (en) | 2018-03-22 |
JP6434128B2 (ja) | 2018-12-05 |
EP3275753B1 (en) | 2020-05-20 |
JPWO2016151965A1 (ja) | 2018-02-15 |
US10207700B2 (en) | 2019-02-19 |
EP3275753A1 (en) | 2018-01-31 |
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