CN105980184A - Hydraulic hybrid system - Google Patents
Hydraulic hybrid system Download PDFInfo
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- CN105980184A CN105980184A CN201480075364.4A CN201480075364A CN105980184A CN 105980184 A CN105980184 A CN 105980184A CN 201480075364 A CN201480075364 A CN 201480075364A CN 105980184 A CN105980184 A CN 105980184A
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- China
- Prior art keywords
- hydraulic
- pressure valve
- high pressure
- centre
- pressure
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
- F03C1/0403—Details, component parts specially adapted of such engines
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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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- 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
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a hydraulic hybrid system (1) for a motor vehicle having an internal combustion engine (18), said system comprising: a hydraulic high-pressure motor (3, 4) as a hydraulic machine (3, 4) for converting hydraulic energy into mechanical energy; a hydraulic high-pressure pump (5, 6) as a hydraulic machine (5, 6) for converting mechanical energy into hydraulic energy, wherein a hydraulic fluid can be pumped by the hydraulic pump; a pressure accumulator (7, 8, 9) for storing hydraulic energy, wherein the high-pressure pump (5, 6) and the high-pressure motor (3, 4) are formed by an identical hydraulic machine (3, 4, 5, 6), and the hydraulic machine (3, 4, 5, 6) comprises at least one moving working member and at least one working chamber that is variable in volume, which hydraulic machine (3, 4, 5, 6) also comprises, for each working chamber, a low-pressure valve having a low-pressure actuator for opening and closing the low-pressure valve, and a high-pressure valve having a high-pressure actuator for opening and closing the high-pressure valve, for letting the hydraulic fluid into and out of the working chamber.
Description
Technical field
The present invention relates to a kind of according to claim 1 hydraulic hybrid system as described in the preamble, basis
Claim 7 internal-combustion engine system as described in the preamble and the most as described in the preamble
For the method running hydraulic hybrid system and internal-combustion engine system.
Background technology
In the high-pressure injection system of internal combustion engine, especially in diesel oil or petrolic common rail injection system
In system, the pressure kept in the high pressure accumulator of common-rail injection system is responsible for constantly by high-pressure pump.High pressure
Pump can such as be driven by drive shaft by the camshaft of internal combustion engine.In order to carry fuel to high-pressure pump,
Use prime delivery pump, such as gear or revolving valve pump, before prime delivery pump is connected to high-pressure pump.
Fuel is flowed to high-pressure pump from fuel tank by fuel channel by prime delivery pump.Also piston pump is used to make
For high-pressure pump.
Have for by hydraulic pressure horse that hydraulic energy transfer is mechanical energy with the motor vehicles of hydraulic hybrid system
Reach, for by hydraulic pump that changes mechanical energy is hydraulic energy and the pressure reservoir being used for storing hydraulic energy.
By mechanical energy or the utilization in energy regeneration runs of the available such as internal combustion engine of hydraulic hybrid system
The kinetic energy of motor vehicles, to improve the pressure of hydraulic fluid in pressure reservoir, especially high pressure accumulator, with
In high pressure accumulator, the most thus store hydraulic energy.For this reason, need with hydraulic hybrid
Special hydraulic motor was both set on the motor vehicles of system, has been also provided with special hydraulic pump and pressure is deposited
Reservoir.Hydraulic pump, for being hydraulic energy by the changes mechanical energy of such as internal combustion engine, is i.e. used for improving pressure
Pressure in memorizer.But, it is empty that the additional member on motor vehicles but disadvantageously results in additional installation
Between demand and higher cost, and cause the weight on motor vehicles to improve.
WO 2010/069857 A1 discloses a kind of hybrid drive system with internal combustion engine and hydraulic press,
Internal combustion engine is used for the fuel driven from fuel tank, and hydraulic press acts on jointly with hydraulic energy memorizer, its
In, hydraulic press is for driving the equal fuel of internal combustion engine to run.
DE 10 2,013 204 025 discloses a kind of hydraulic hybrid system for motor vehicles.This hydraulic pressure mixes
Assembly system includes hydraulic motor, hydraulic pump and pressure reservoir, and by them, hydraulic energy can be at high pressure
Lower storage is also used as mechanical energy.Hydraulic motor and hydraulic pump are formed by same hydraulic press.
Summary of the invention
The hybrid system of the motor vehicles for having internal combustion engine according to the present invention includes as hydraulic press
For using hydraulic high-pressure motor that hydraulic energy transfer is mechanical energy, as hydraulic press by can be by described
Hydraulic pump delivery hydraulic pressure liquid and for by hydraulic high-pressure pump that changes mechanical energy is hydraulic energy be used for storing
The pressure reservoir of hydraulic energy, wherein, described high-pressure pump and described high voltage machines are by same hydraulic mechanism
Become and described hydraulic press includes at least one movable operating mechanism and at least one variable volume
Working chamber, wherein, each working chamber of described hydraulic press includes one with for opening and closing low pressure
The low pressure valve of the low pressure actuator of valve and the height with the high pressure accumulator for opening and closing high pressure valve
Pressure valve, for importing hydraulic fluid and deriving in described working chamber.Described work at described hydraulic press
The low pressure valve with low pressure actuator and the high pressure valve with high pressure accumulator is arranged on chamber.Thus, institute
State low pressure valve and high pressure valve can be opened and closed on one's own initiative by control unit.This advantageously makes described tool
The hydraulic press having the working chamber of described movable operating mechanism and described variable volume both can serve as height
Pressure motor, can also serve as high-pressure pump.So, described operating mechanism can be as high voltage machines by hydraulic pressure
Can be converted into mechanical energy, can be also hydraulic energy by changes mechanical energy as high-pressure pump.By little structure
Expense, is i.e. provided with the hydraulic press of high pressure valve and the low pressure valve that can actively control, and this hydraulic press is thus
Can use as high voltage machines and work, also can use as high-pressure pump and work.
Described hydraulic hybrid system, the most described hydraulic press, especially include control unit, can be by
What described control unit controlled at least one low pressure valve described and at least one high pressure valve described beats on an off
Close.
In another design, described at least one operating mechanism movable, especially work work
Plug, is supported in the drive shaft of rotation, indirectly by each flexible member, especially a spring, to institute
State and at least one operating mechanism, cither indirectly or directly apply power, especially a pressure so that be described
The rotary motion of drive shaft causes the oscillating movement and/or described at least of at least one operating mechanism described
Individual operating mechanism having the top dead-centre of corresponding working chamber minimum volume and can have the working chamber of correspondence
Between the bottom dead centre of maximum volume motion and/or at least one low pressure valve described respectively include one can be by described
The valve piston of low pressure actuator movement and at least one high pressure valve described respectively include one can be by described high pressure
The valve piston of actuator movement and/or at least one low pressure actuator described are by electric magnet or hydraulic actuator
Constitute and at least one high pressure accumulator described is made up of electric magnet or hydraulic actuator.
Supplementing in embodiment one, described hydraulic press includes the anglec of rotation for sensing described drive shaft
The angular sensor of degree position, can control institute according to the described rotary angle position of described drive shaft
State at least one low pressure valve and the opening and closing of at least one high pressure valve described.
In an Additional embodiments, at least one low pressure valve described and at least one high pressure valve described
Opening and closing can control according to the hydraulic fluid volume flow guided by described hydraulic press and/or can
Running status according to still running as high voltage machines as high-pressure pump controls.
Preferably, as at least one high pressure valve and described at least described in the described hydraulic press of high-pressure pump
Individual low pressure valve so controls: make to transport to top dead-centre from bottom dead centre at least one operating mechanism described
At least one high pressure valve described of dynamic period be at least one low pressure valve that open and described be to close,
At at least one operating mechanism described at least one high pressure valve described during the downward dead-centre motion of top dead-centre
Be close and at least one low pressure valve described open, and/or, as described in high voltage machines
At least one high pressure valve described and at least one low pressure valve described of hydraulic press so control: make in institute
Stating at least one operating mechanism at least one high pressure valve described during bottom dead centre upwards dead-centre motion is to close
At least one low pressure valve that close and described is opened, at least one operating mechanism described from dead
Point at least one high pressure valve described during described bottom dead centre moves be that open and described at least one
Low pressure valve is to cut out.
In a modification, using the fuel of internal combustion engine, especially diesel oil, as being used for storing hydraulic energy
Hydraulic fluid, the most only use fuel as hydraulic fluid, and/or, open situation at described high pressure valve
Under described working chamber and at least one ejector and/or high pressure accumulator is in the connection of water conservancy diversion and/or
In the case of described low pressure valve is opened, described working chamber is in low pressure memorizer, especially fuel tank and leads
In the connection of stream.
The internal-combustion engine system for motor vehicles according to the present invention includes: high-pressure injection system, described height
Pressure spraying system has ejector high-pressure pump, preferably high voltage rail, is preferred for from fuel tank to described spray
The prime delivery pump of emitter high-pressure pump conveying fuel；Preferably drivetrain, described drivetrain is used for driving tool
There is the driving wheel of the motor vehicles of internal combustion engine and/or hydraulic motor；Hydraulic hybrid system, described hydraulic hybrid
System have for by hydraulic high-pressure motor that hydraulic energy transfer is mechanical energy, be used for changes mechanical energy
For the hydraulic high-pressure pump of hydraulic energy, for storing the pressure reservoir of hydraulic energy, wherein, described hydraulic pressure
Hybrid system is configured to the hydraulic hybrid system stated illustrated by the application and/or described ejector high pressure
Pump is made up of described high-pressure pump.
The hydraulic pressure of explanation in hydraulic hybrid system, especially the application that is used for running according to the present invention mixes
In assembly system and/or internal-combustion engine system, especially the application, the method for the internal-combustion engine system of explanation, has
Following steps: by hydraulic pump from low pressure memorizer to high pressure accumulator delivery hydraulic pressure liquid so that by institute
Stating hydraulic pump by changes mechanical energy is hydraulic energy；From described high pressure accumulator to described low pressure memorizer and
Described hydraulic fluid is guided so that hydraulic energy transfer is machinery in described hydraulic motor by hydraulic motor
Can, mechanical energy is used for driving described motor vehicles, wherein, as described hydraulic pump and the work of high-pressure pump
Described hydraulic motor for high voltage machines is made up of same hydraulic press, and, on this same hydraulic press
At least one operating mechanism moves so that corresponding to the appearance of the working chamber of at least one operating mechanism described
Long-pending change.
Aptly, each working chamber of described hydraulic press includes that one has for opening and closing low pressure valve
The low pressure valve of low pressure actuator and a high pressure accumulator having for opening and closing high pressure valve
High pressure valve, in order to hydraulic fluid is imported and derives described working chamber, and/or, the most only use described
The fuel of internal combustion engine, preferably diesel oil, as hydraulic fluid, especially fuel is by as described in high-pressure pump
Hydraulic press flows to described high pressure accumulator and/or is carried by the described hydraulic press as ejector high-pressure pump
Lead to at least one high pressure valve described at least one ejector of described internal combustion engine and/or described hydraulic press
Cross at least one ejector of fuel under high pressure pipeline and described internal combustion engine and/or formed with high pressure accumulator to lead
Stream connects and/or at least one low pressure valve described is connected by fuel channel and fuel tank formation water conservancy diversion and/
Or described at least one operating mechanism, especially working piston especially by drive shaft at top dead-centre and
Move between bottom dead centre.
In another embodiment, when described hydraulic press runs as high-pressure pump, described at least one
Individual operating mechanism at least one high pressure valve described during bottom dead centre upwards dead-centre motion be open and
At least one low pressure valve described is to cut out, drive shaft transfer force at least one working machine described
On structure, so that the opposing of described operating mechanism is applied to the pressure in described operating mechanism by described hydraulic fluid
From bottom dead centre upwards dead-centre motion so that changes mechanical energy is hydraulic energy, hydraulic fluid by from described at least
One working chamber transports out, at least one operating mechanism described from the top dead-centre downward dead-centre motion phase
Between at least one high pressure valve described be to close and at least one low pressure valve described is opened so that
Hydraulic fluid is transported in described working chamber.
Especially when described hydraulic press runs as high voltage machines, at least one operating mechanism described
During top dead-centre moves to described bottom dead centre at least one high pressure valve described be that open and described to
A few low pressure valve is to cut out, hydraulic fluid the pressure being applied in described operating mechanism is passed to
In drive shaft so that hydraulic energy transfer is mechanical energy, hydraulic fluid is transported at least one work described
In chamber, at least one operating mechanism described during bottom dead centre upwards dead-centre motion described at least one
High pressure valve be close and at least one low pressure valve described open so that hydraulic fluid is by from work
Chamber transports out.
In another design, when described hydraulic press runs as high voltage machines, described at least
One operating mechanism's at least one high pressure valve described during the downward dead-centre motion of top dead-centre is to open also
And described at least one low pressure valve is to cut out, downward from top dead-centre at least one operating mechanism described
During dead-centre motion, described high pressure valve is to close so that hydraulic fluid is interrupted to the inflow of working chamber,
Described high pressure valve is the most early closed, and the fewest hydraulic energy transfer is mechanical energy, and vice versa.
Supplement in modification one, when described hydraulic press runs as high voltage machines, described at least one
Individual operating mechanism during the downward dead-centre motion of top dead-centre described high pressure valve close after or the down periods or
When will close, described low pressure valve is opened, to avoid pressure violent in described working chamber to reduce.
In another modification, when described hydraulic press runs as high voltage machines, described at least one
Operating mechanism's at least one high pressure valve described during bottom dead centre upwards dead-centre motion is to close and institute
State at least one low pressure valve be initially that open and arrive before top dead center close so that described at least
One operating mechanism during bottom dead centre upwards dead-centre motion the pressure described working chamber due to described height
Pressure valve and low pressure valve are closed and are risen, at described top dead-centre, the height on working chamber and described high pressure valve
Do not closed described before described top dead-centre at existence ratio between pressure pipeline, especially fuel under high pressure pipeline
Pressure differential less in the case of at least one low pressure valve, thus, described high pressure accumulator is because of described
Less pressure differential and need less power for opening the valve piston of described high pressure valve.
In another design, when described hydraulic press runs as high-pressure pump, described at least one
Individual operating mechanism at least one high pressure valve and low pressure valve described in during bottom dead centre upwards dead-centre motion are in institute
The incipient stage of the motion stating operating mechanism is to close so that the pressure in described working chamber rises,
Thus, the pressure piping on described working chamber and described high pressure valve, especially fuel under high pressure pipeline it
Between exist than pressure differential less in the case of not closing described high pressure valve when starting, described extremely
Described high pressure valve is the most only opened after the incipient stage of the motion of a few operating mechanism, thus, described
High pressure accumulator needs little power for opening the valve of described high pressure valve because of described less pressure differential
Piston.
Especially, described high-pressure pump is constructed as below: the pressure of hydraulic fluid can be carried by described high-pressure pump
High at least 200 bars, 500 bars, 1000 bars or the pressure of 2000 bars, with by changes mechanical energy as liquid
Pressure energy, and/or, described high voltage machines is constructed as below: make it possible to process have at least 200 bars, 500
Bar, 1000 bars or the hydraulic fluid of 2000 bar pressures, with by hydraulic energy transfer as mechanical energy.
Supplementing in embodiment one, use the fuel stating internal combustion engine, especially diesel oil, as being used for
The hydraulic fluid of storage hydraulic energy, especially only with fuel as hydraulic fluid.Fuel, especially as
The diesel oil of the internal combustion engine of Diesel engine or the gasoline as petrolic internal combustion engine, due to fuel
Consume and constantly change, make in this way to maintain or change hydraulic fluid.
Preferably, described pressure reservoir includes high pressure accumulator and low pressure memorizer, and described low pressure stores
Device is made up of the fuel tank of described internal combustion engine.Use fuel tank as low pressure memorizer so that originally to deposit
The fuel tank being on motor vehicles is used as the low pressure memorizer of hydraulic hybrid system.Thus, described
Hydraulic hybrid system is advantageously without additional low pressure memorizer.
In a modification, in energy regeneration runs, the kinetic energy of motor vehicles can be converted by described high-pressure pump
For mechanical energy, because described high-pressure pump is mechanically connected with the driving wheel of motor vehicles.
Aptly, described high-pressure pump also serves as the ejector high-pressure pump use of high-pressure injection system.Thus,
Can both provide high-pressure pump by unique hydraulic press, and also provide for high voltage machines, also provide for ejector high pressure
Pump.Thus can advantageously save the additional hydraulic machine in hydraulic hybrid system so that described hydraulic hybrid
The manufacture of system is cheap, advantageously needs little installing space and quality on motor vehicles.
Especially, use the fuel tank of internal combustion engine as low pressure memorizer and/or described hydraulic high-pressure horse
The pressure making hydraulic fluid in reaching reduces at least 100 bars, 300 bars, 600 bars, 1000 bars or 2000 bars
And/or make in described hydraulic pump hydraulic fluid pressure improve at least 100 bars, 300 bars, 600 bars, 1000
Bar or 2000 bars.
In another design, the pressure in described low pressure memorizer, especially fuel tank is less than 5
Bar, 3 bars or 2 bars, especially, be essentially 1 bar as the pressure in the low pressure memorizer of fuel tank.
In another modification, described hydraulic high-pressure pump energy regeneration run in by the driving wheel of motor vehicles
Drive so that the kinetic energy of motor vehicles is converted into the hydraulic energy in described pressure reservoir.
In another embodiment, fuel by described high pressure accumulator import described high voltage rail, otherwise also
So.
In a modification, described hybrid system includes low pressure memorizer and high pressure accumulator.
Aptly, described hydraulic fluid is the gasoline as fuel.
In another embodiment, state hydraulic high-pressure motor and described hydraulic high-pressure pump be configured to piston pump,
At least one piston is especially driven by crank-drive mechanism, bent axle, camshaft or eccentric shaft, described
Crank-drive mechanism, bent axle, camshaft or eccentric shaft are driven by described internal combustion engine.
Described high pressure accumulator especially bubble memorizer, piston memorizer or spring memorizer.At bubble
In memorizer, arranging gas in elasticity is steeped, described gas is imported into described bubble memorizer at hydraulic fluid
Time compressed, vice versa.The bubble being made up of rubber or plastics in memorizer housing by hydraulic fluid bag
Enclose.This hydraulic fluid is used for pressure-loaded and the discharge degree of high pressure accumulator, and energy is stored in described height
Pressure memorizer is carried out.
In another modification, described internal-combustion engine system and/or described hydraulic hybrid system include internal combustion engine and/
Or for from combustion engine mechanical transmit power mechanical drivetrain and/or have hydraulic high-pressure motor, for
The hydraulic-driven system of power is hydraulically transmitted at least one driving wheel of motor vehicles.
In another design, described prime delivery pump is the prime delivery pump with motor, makes
Described prime delivery pump by described motor-driven, especially, the conveying merit of described prime delivery pump
Rate is can to control and/or adjustable.
In another modification, the piston of described hydraulic press is supported on indirectly by roller or base tappet
In the drive shaft of described hydraulic press, such as on camshaft or eccentric shaft.
Accompanying drawing explanation
Below with reference to the accompanying drawings embodiments of the invention are described in detail.Accompanying drawing illustrates:
Fig. 1 hydraulic hybrid system and the extremely schematically view of internal-combustion engine system,
The cross section of Fig. 2 high-pressure pump,
Fig. 3, according to the cross section A-A of the high-pressure pump of Fig. 2, has roller and the drive shaft of band roller boots,
The curve chart that Fig. 4 changes as the pressure in the working chamber of the hydraulic press of high-pressure pump, wherein,
The rotary angle position of drive shaft is drawn on abscissa, draw the pressure p in working chamber on the vertical scale,
The curve chart that Fig. 5 changes as the pressure in the working chamber of the hydraulic press of high voltage machines, wherein,
Draw the rotary angle position of drive shaft on the horizontal scale, draw the pressure in working chamber on the vertical scale
P, and
Another curve chart that Fig. 6 changes as the pressure in the working chamber of the hydraulic press of high voltage machines, its
In, draw the rotary angle position of drive shaft on the horizontal scale, draw on the vertical scale in working chamber
Pressure p.
Detailed description of the invention
Unshowned motor vehicles has internal combustion engine 18 as the Diesel engine for driving motor vehicles.In
Combustion engine 18 have four unshowned, there is the internal combustion engine of corresponding cylinder of internal combustion engine.As combustion
The diesel oil of material is ejected into cylinder of internal combustion engine by four ejectors 17 from high voltage rail 16 respectively
On working chamber in.Diesel oil as fuel is saved in fuel tank 10, and this fuel is by prime delivery pump
11 are supplied to ejector high-pressure pump 15 by fuel inlet pipe 13.By prime delivery pump 11 at 3 bars
It is supplied to the fuel of ejector high-pressure pump 15 by ejector high-pressure pump 15 by pressure to the pressure of 5 bars
Strongly bring up to the pressure limit between 3000 bars and 4000 bars.Fuel under high pressure is by spraying
Device high-pressure pump 15 is supplied to high voltage rail 16 by fuel under high pressure pipeline 33.Pressure quilt in high voltage rail 16
Pressure transducer 32 senses and is supplied to the control list of internal-combustion engine system 2 by unshowned data conductor
Unit 30.That carried by ejector high-pressure pump 15 by control, by the fuel of fuel under high pressure pipeline 33
Volume flow, can keep the substantially invariable pressure between 3000 bars to 4000 bars in high voltage rail 16.
The mechanical energy exported by internal combustion engine 18 is supplied to driving wheel 25 by drivetrain 20.By drivetrain axle
Mechanical energy can be supplied to variator 21 and from variator from the direct (not shown) of internal combustion engine 18 by 39
21 are supplied to differential speed variator 23.Differential speed variator 23 drives each two with a driving wheel 25
Wheel drive shaft 24.Show drive shaft 12 in fig 1 and 2, by the drive shaft with cam 29
12, ejector high-pressure pump 15 is by internal combustion engine 18 Mechanical Driven.By clutch 22, internal combustion engine 18 He
Mechanical connection between ejector high-pressure pump 15 is disengagable, and wherein, preferably internal combustion engine 18 drives with having
Mechanical connection between the dynamic drivetrain 20 being axle 39 keeps constant (not shown).
Unshowned motor vehicles also has the hydraulic hybrid system 1 ingredient as internal-combustion engine system 2.
Fuel can be by the hydraulic pump 5 as high-pressure pump 6 from the fuel inlet pipe 13 as fuel channel 40
Sucking-off is also supplied to as high pressure under the pressure of 3000 bars to 4000 bars by fuel under high pressure pipeline 34
The pressure reservoir 7 of memorizer 8.Therefore, hydraulic pump 5 is constructed as below: make it be used as high pressure
Pump 6, i.e. the fuel of the hydraulic fluid as hydraulic hybrid system 1 is brought up to 3000 Palestine and Israels up to 4000
The pressure of bar.Hydraulic hybrid system 1 also has the hydraulic motor 3 as high voltage machines 4.Pass through high pressure
The kinetic energy of motor vehicles can be converted into by pump 6 by the mechanical energy of internal combustion engine 18 or in energy regeneration runs
Hydraulic energy, its mode makes, and by hydraulic fluid, i.e. as the fuel of diesel fuel, is transported to high pressure storage
In device 8.By fuel is imported the hydraulic motor 3 as high voltage machines 4 from high pressure accumulator 8, can
It is mechanical energy by hydraulic energy transfer.Fuel accordingly, as diesel oil passes through fuel under high pressure pipeline 34 from height
Pressure memorizer 8 is supplied to high voltage machines 4, and in high voltage machines 4, the pressure of diesel oil acutely reduces, example
Such as the pressure being reduced between 1 bar to 2 bars from 4000 bars.Releasable hydraulic energy is reduced by pressure,
This hydraulic energy is converted into mechanical energy by high voltage machines 4, thus drives drivetrain axle 39, thus also drives
For driving the driving wheel 25 of motor vehicles.After diesel oil is by fuel under high pressure pipeline 34 and high voltage machines 4,
Diesel oil passes through the fuel return line 14 as fuel channel 40 with the least pressure between 1 bar to 2 bars
Power re-supplies to fuel tank 10 so that fuel tank 10 also serves as the low pressure memorizer of hydraulic hybrid system 1
9.High-pressure pump 6 and high voltage machines 4 are formed by identical or same hydraulic press 4,6 and are had at least one
Individual operating mechanism 26, i.e. working piston 27.Here, working piston 27 both in high-pressure pump 6 by with
In improving pressure, i.e. it is used for carrying fuel and enters high pressure accumulator 8, also by fuel under high pressure pipeline 34
For being mechanical energy by hydraulic energy transfer, its mode is, is passed through by fuel under high pressure pipeline 34 by diesel oil
Working chamber 28 on working piston 27 imports in fuel return line 14 again.
In fuel under high pressure pipeline 33, load a valve 36, fuel under high pressure pipeline 34 load a valve 38,
Connecting pipeline 35 by fuel under high pressure makes fuel under high pressure pipeline 33 be connected with fuel under high pressure pipeline 34.?
Fuel under high pressure connects in pipeline 35 and loads additional valve 37.Valve 36,37,38 is led by unshowned data
Line is connected with control unit 30.Additionally, prime delivery pump 11 is also by corresponding data conductor and control
Unit 30 processed connects.Therefore, by correspondingly opening and closing valve 36,37,38 and control by spraying
Device high-pressure pump 15 is supplied to the volumetric fuel flow rate of high voltage rail 16 and by fuel under high pressure pipeline 34 difference
The volumetric fuel flow rate guided to both direction, can control and/or regulate: how many volumetric fuel flow rate
It is supplied to and/or can be supplied to high voltage rail 16 and/or high pressure accumulator 8, and/or by high pressure accumulator 8
Import in fuel tank 10 and/or by high pressure accumulator 8 import high voltage rail 16 neutralize/or vice versa.
High-pressure pump 6, high voltage machines 4 and ejector high-pressure pump 15 are formed by same hydraulic press so that
Working piston 27 at working chamber 28 is both for high voltage rail 16 and conveying combustion in high pressure accumulator 8
Material, is also used for passing through high voltage machines 4 to the fuel tank as low pressure memorizer 9 from high pressure accumulator 8
10 guide fuel with by hydraulic energy transfer as mechanical energy.
Therefore, that can be controlled hydraulic hybrid system 1 by control unit 30 and/or internal-combustion engine system 2 is not
Same running status.Such as in a kind of running status, in order to only store hydraulic energy, moving by motor vehicles
Fuel can be transported in high pressure accumulator 8 by the high-pressure pump 6 that can drive by fuel under high pressure pipeline 34,
Valve 38 is opened and valve 36 and 37 cuts out.Actual pressure in high voltage rail 16 is less than specified
In another running status of pressure, valve 38 and 37 is opened, and fuel is transported to high pressure by high-pressure pump 6 and deposits
In reservoir 8, unnecessary fuel under high pressure connects pipeline 35 by fuel under high pressure and is supplied to high voltage rail 16.?
In actual pressure in high voltage rail 16 another running status more than the pressure in high pressure accumulator 8, combustion
Material is by having multiple pump unit (these pump units respectively include a working piston 27 with working chamber 28)
A part of pump unit of high-pressure pump 6 be supplied to high pressure accumulator 8, fuel is supplied by another part pump unit
High voltage rail 16 should be given.Thus, the stress level of fuel can be brought up to different press waters by high-pressure pump 6
Flat.When motor vehicles only uses hydraulic energy to run, internal combustion engine 18 cuts out and valve 38 is opened so that
Fuel flows to fuel tank 10 from high pressure accumulator 8 by high voltage machines 4 under the high pressure of 4000 bars, by
This motor vehicles is driven by driving wheel 25 by high voltage machines 4.Actual pressure in high voltage rail 16 and
Rated pressure is than in little another running status in high pressure accumulator 8, and fuel is by high pressure accumulator 8
Being supplied to high voltage rail 16 by the valve 37 opened, fuel is supplied to high pressure by the valve 38 opened simultaneously
Motor 4 so that thus motor vehicles also can be driven by the hydraulic energy from high pressure accumulator 8.In high voltage rail
Actual pressure in 16 than in big another running status in high pressure accumulator 8, the one of high-pressure pump 6
Fuel is supplied to high pressure by fuel under high pressure pipeline 33 in the case of valve 36 is opened by part pump unit
Rail 16, and hydraulic press 3, another part of the pump unit of 5 works as high voltage machines 4, and its mode is,
Fuel is supplied to fuel tank 10 from high pressure accumulator 8 by high voltage machines 4.
Show the high-pressure pump 6 of high-pressure injection system 19, high voltage machines 4 and injection in figs 2 and 3
The cross section of device high-pressure pump 15.High-pressure pump 6 has the drive shaft 12 with two cams 29, this driving
Axle implements rotary motion around rotation axis 41.Rotation axis 41 is in the plan of Fig. 2 and hangs down
Straight in the plan of Fig. 3.Working piston 27 as operating mechanism 26 is bearing in as piston guide
In the cylinder 49 of device 44, cylinder 49 is formed by housing 43.Working chamber 28 is by cylinder 49, housing 43 and
Working piston 27 gauge.One passage is as fuel inlet pipe 13 and fuel return line 14
Fuel channel 40 be passed through in working chamber 28 by low pressure valve 53, a passage is as high-pressure fuel pipe
Road 33,34 is passed through in working chamber 28 by high pressure valve 50.When running as high-pressure pump 6, fuel passes through
Passage fuel channel 13 in other words, 14,40 flow in working chamber 28, when running as high voltage machines 4
Fuel flows out from working chamber 28, when running as high-pressure pump 6 fuel under high pressure by passage or
Say that fuel under high pressure pipeline 33,34 flows out again from working chamber 28, when running as high voltage machines 4 then
Otherwise.The volume of working chamber 28 changes because the vibration of working piston 27 moves back and forth.Work is lived
Plug 27 is supported directly in drive shaft 12.The end of working piston 27 is fixed with band roller 46
Roller boots 45.Here, roller 46 can implement rotary motion, the rotation axis of rotary motion 57
In the plan of Fig. 2 and be perpendicular to the plan of Fig. 3.Roller 46 is by sliding bearing 56 (figure
3) it is bearing on roller boots 45.Drive shaft 12 with at least one cam 28 has axle rolling surface
42, roller 46 has roller rolls face 48.
The roller rolls face 48 of roller 46 is at the axle rolling surface of the drive shaft 12 with two cams 29
Roll on 42 so that between roller 46 and drive shaft 12, there is contact surface 47.45, roller boots
Hold in the roller boots supporting arrangement being formed as slidably supported device by housing 43.It is clamped in housing
As spring 58 helical spring 58 in other words of flexible member 59 to roller between 43 and roller boots 45
Boots 45 apply pressure so that the roller rolls face 48 of roller 46 and the axle rolling surface 42 of drive shaft 12
It is in continuous contact.So, roller boots 45 and the vibration of working piston 27 common implementing move back and forth.
Have multiple as high voltage machines 4, hydraulic press as high-pressure pump 6 with as ejector high-pressure pump 15
As the operating mechanism 26 of working piston 27, these operating mechanisms are directly supported in drive shaft 12,
One working piston 27 is the most only shown.
High pressure valve 50 includes the high pressure accumulator 51 as electric magnet 52 and movable valve piston 55.
Low pressure valve 53 includes the low pressure actuator 54 as electric magnet 52 and movable valve in a similar fashion
Piston 55.Such as it is used as hydraulic operated actuator 51,54 (not shown) and replaces electrical actuator
51,54.Control unit 30 can actively control high pressure valve 50 and low pressure valve by the energising of electric magnet 52
The opening and closing of 53.Angular sensor 60 senses the rotary angle position of drive shaft 9, root
According to rotary angle positionWith as high-pressure pump 6 or as the running status of high voltage machines 4 and driving
The volume of the desired hydraulic fluid (i.e. fuel) to be guided by hydraulic press under moving axis 12 rotating speed same case
Flow carries out high pressure valve 50 and the opening and closing of low pressure valve 53.Thus, the working piston 27 of vibration
Can be for being mechanical energy by hydraulic energy transfer in high voltage machines 4 running status, its mode is also to make
The hydraulic fluid pressure being used on working piston 27 is passed in drive shaft 12, otherwise at high-pressure pump 6
In running status, mechanical energy is delivered on working piston 27 from drive shaft 12 so that this work is lived
Plug 27 opposing acted on the pressure on this working piston 27 by hydraulic fluid and from bottom dead centre UT to top dead-centre
OT moves, and thus improves hydraulic fluid pressure in high pressure accumulator 8, because hydraulic fluid is by working piston 7
It is transported in high pressure accumulator 8.
In Fig. 4, it is depicted in hydraulic press on the vertical scale as working chamber in the running status of high-pressure pump 6
The curve chart of the pressure p of the hydraulic fluid in 28, draws the anglec of rotation position of drive shaft 12 on the horizontal scale
Put.At working piston 27 from top dead-centre OT to during the whole motion of bottom dead centre UT, high pressure valve
50 is to close all the time.Low pressure valve 53 is at top dead-centre and the most dead from top dead-centre at working piston 27
It is to close during the incipient stage AP of some motion.Therefore, downward from top dead-centre at working piston 27
During the incipient stage AP of dead-centre motion, high pressure valve 50 and low pressure valve 53 are all to close.Thus,
At working piston 27 from top dead-centre OT to during the incipient stage AP that bottom dead centre UT moves, pressure p
Owing to the volume of working chamber 28 reduces and fast at working piston 27 during the downward dead-centre motion of top dead-centre
Speed declines.After in this incipient stage, AP terminates, in rotary angle position ONV, low pressure valve 53 is beaten
Open, thus, due to the lower pressure in working chamber 28, the hydraulic fluid as fuel can be flowed into or by
Prime delivery pump 11 is transported in working chamber 28.Owing to low pressure valve 53 closes during incipient stage AP
Close or remain turned-off, at the end of incipient stage AP, i.e. at rotary angle position ONV, it is only necessary to
The least power is used for opening low pressure valve 53, because at fuel channel 13, the pressure on 40 and working chamber 28
Little pressure differential occurs, because during incipient stage AP inside working chamber 28 between interior pressure
Pressure acutely declines.Fortune is continued from rotary angle position ONV to bottom dead centre UT at working piston 27
Dynamic period, fill working chamber 28 with hydraulic fluid.Additionally, carry out the pass of low pressure valve 53 at bottom dead centre UT
Close so that rotary angle position SNV that the rotary angle position of bottom dead centre UT is closed with low pressure valve 53
Unanimously.At working piston 27 during bottom dead centre UT continues motion to top dead-centre OT, starting rank
Rotary angle position OHV that section AP just opens at high pressure valve 50 after terminating carries out beating of high pressure valve 50
Open.At working piston 27 from bottom dead centre UT to during the incipient stage AP that top dead-centre OT moves,
High pressure valve 50 and low pressure valve 53 are to close, thus, at working piston 27 from bottom dead centre UT simultaneously
During the incipient stage of top dead-centre OT motion, rise at the working chamber 28 quick pressure of internal implementation.
Because this rapid pressure during incipient stage AP rises, in the anglec of rotation position that high pressure valve 50 is opened
Put need on OHV little power to open valve piston 55 because at working chamber 28 and fuel under high pressure pipeline
Little pressure differential is there is between 33,34.In order to high-pressure pump 6 in the identical situation of drive shaft 12 rotating speed
Under also implement less hydraulic fluid volume flow, the closedown of high pressure valve 50 is not according to shown in Fig. 4
Top dead-centre carry out (in the figure high pressure valve 50 close rotary angle position SHV be equivalent to top dead-centre
OT), but entered before top dead-centre during bottom dead centre upwards dead-centre motion at working piston 27
The closedown of horizontal high voltage valve 50, makes low pressure valve 53 open simultaneously so that a part of liquid in working chamber 28
Hydraulic fluid is in working piston 27 the most unshowned ending phase during bottom dead centre upwards dead-centre motion
Period is not transported to fuel under high pressure pipeline 33, in 34, but is transported in fuel channel 40.
In Figure 5 according to the anglec of rotationShow in working chamber 28 for high voltage machines 4 running status
The pressure p of hydraulic fluid.Carry out opening of high pressure valve 50 at the top dead-centre OT of working piston 27, make
Obtain top dead-centre OT and be equivalent to rotary angle position OHV that high pressure valve 50 is opened.At high pressure valve 50
During open mode, fuel flows into working chamber 28 from high pressure accumulator 8 by fuel under high pressure pipeline 34
In, thus, owing to acting on the big hydraulic fluid pressure on working piston 27, this working piston is from upper
The downward dead-centre motion in dead point, hydraulic fluid this pressure being delivered on working piston 27 is passed to drive
On axle 12, with by hydraulic energy transfer as mechanical energy.At working piston 27 from top dead-centre OT to bottom dead centre
During UT motion when bottom dead centre UT will be arrived, along with the beginning of ending phase EP, rotating
The closedown of angle position SHV enterprising horizontal high voltage valve 50, low pressure valve 53 during this ending phase EP
It is to close simultaneously.Because high pressure valve and low pressure valve 50,53 are both closed, therefore at working piston
27 from top dead-centre OT to during the ending phase that bottom dead centre UT moves, the pressure in working chamber 28 is acute
Strong decline, thus, at the end of ending phase EP and on bottom dead centre UT, working chamber 28 and combustion
Pipe material 40 exists between hydraulic fluid pressure little pressure differential.Thus, on bottom dead centre UT in order to
Open low pressure valve 53 and only need power little, on valve piston 55 to be applied to, for opening at bottom dead centre
Low pressure valve 53.At working piston 27 during bottom dead centre upwards dead-centre motion, at first low pressure valve 53 is
Opening, thus, hydraulic fluid is transported to fuel channel 40 from working chamber 28 and exists.At working piston
27 from bottom dead centre to during the whole motion of top dead-centre, high pressure valve 50 is to close.On will arriving
During dead point, along with the beginning of ending phase EP, rotary angle position SNV carries out low pressure valve 53
Closedown so that working piston 27 from bottom dead centre UT to top dead-centre OT move during terminate rank
During section EP, high pressure valve 50 and low pressure valve 53 are all to close, thus, in the ending phase EP phase
Between, owing to the volume of working chamber 28 reduces, occur that violent pressure rises.Due at working piston 27
When bottom dead centre upwards dead-centre motion, this pressure during ending phase EP rises, in top dead-centre, work
Make, between the hydraulic fluid pressure in chamber 28 and fuel under high pressure pipeline 33,34, little pressure differential occurs.Thus,
In order to make the valve piston 55 of high pressure valve 50 move, i.e. in order to top dead-centre open high pressure valve 50 (because
Top dead-centre is equivalent to for opening rotary angle position OHV of high pressure valve 50), need little power.
Fig. 6 shows another change of hydraulic fluid pressure in working chamber 28 for high voltage machines 4.
In Figure 5, maximum hydraulic pressure liquid volume flow in the case of drive shaft 12 has corresponding constant rotational speed
It is conducted through high voltage machines 4, different from the embodiment shown in Fig. 5, in figure 6, in drive shaft
12 there is identical constant rotational speed in the case of the hydraulic fluid less than the hydraulic fluid volume flow of maximum possible
Volume flow is conducted through high voltage machines 4, and being used for hydraulic energy transfer is mechanical energy.Now, low pressure
Opening of valve 50 is not carried out at bottom dead centre, but at working piston 27 from the downward dead-centre motion of top dead-centre
Period is carried out in rotary angle position ONV that low pressure valve 53 is opened when arriving bottom dead centre.
Before rotary angle position ONV that low pressure valve 53 is opened, in the anglec of rotation that high pressure valve 50 is closed
The closedown of position SHV enterprising horizontal high voltage valve 50.Go out between rotary angle position SHV and ONV
Existing ending phase EP.Therefore, during ending phase EP, high pressure valve 50 and low pressure valve 53 are in work
Making piston 27 is all to close during the downward dead-centre motion of top dead-centre so that in this ending phase EP
Period carries out pressure quickly in working chamber 28 and reduces so that at the end of ending phase EP,
Between hydraulic fluid pressure in working chamber 28 and the hydraulic fluid pressure in fuel channel 40, little pressure occurs
Power is poor.Thus, at the end of ending phase EP, rotary angle position ONV needs little power
Open the valve piston 55 of low pressure valve 53.Therefore, at working piston 27 from rotary angle position ONV
Downwards during dead-centre motion, there is no that hydraulic energy transfer is mechanical energy, because in working chamber 28
Only exist the least pressure.Additionally, working piston 27 during the downward dead-centre motion of top dead-centre only from
Rotary angle position SHV that rotary angle position OHV or top dead-centre are closed to high pressure valve 50 is carried out
Hydraulic fluid importing in working chamber 28 so that thus in a stroke of working piston 27, than
In the case of shown in Fig. 5, little hydraulic fluid volume is imported in working chamber 28.
The most apparently, the hydraulic hybrid system 1 according to the present invention and the internal-combustion engine system 2 according to the present invention
There is clear superiority.Use the fuel i.e. diesel oil hydraulic fluid as hydraulic hybrid system 1 of internal combustion engine 18.
Additionally, fuel be maintained in high pressure accumulator 8 between 3000 bars to 4000 bars in the range of big
Under pressure, thus, big energy can be stored by the every structural capacity of high pressure accumulator 8 and every mass unit
Amount.Need not the low pressure memorizer 9 added, because low pressure memorizer is by the fuel tank 10 after all existed
Formed.High-pressure pump 6, high voltage machines 4 and ejector high-pressure pump 15 form an installation unit, make
Must need not be respectively used to the additional of high voltage machines 4, high-pressure pump 6 and ejector high-pressure pump 15 dividually
Installation unit.The control of the high pressure valve 50 of hydraulic press and the opening and closing of low pressure valve 53 is by controlling list
Unit 30 passes through high pressure accumulator and low pressure actuator 51,54 according to rotary angle position φ, as pump 5
Or motor 4 run running status and under the determination rotating speed of drive shaft 12, be conducted through hydraulic press
, desired hydraulic fluid or volumetric fuel flow rate actively carry out so that hydraulic press can be as hydraulic pressure
Pump 5 and as hydraulic motor 4 in the case of drive shaft 12 invariablenes turning speed with different hydraulic fluid volumes
Flow works.Due to high pressure valve and the favourable control of low pressure valve 50,53, high pressure accumulator 51 and low pressure
Actuator 54 only need little power to make valve piston 55 move because open and close time at working chamber
Little pressure differential is only existed between 28 and fuel channel 40 or fuel under high pressure pipeline 33,34.
Claims (15)
1. it is used for the hydraulic hybrid system (1) with the motor vehicles of internal combustion engine (18), including:
-as the hydraulic high-pressure motor (3,4) of hydraulic press (3,4), for being machine by hydraulic energy transfer
Tool energy,
-as the hydraulic high-pressure pump (5,6) of hydraulic press (5,6), for being hydraulic pressure by changes mechanical energy
Can, its mode it is possible to by described hydraulic pump delivery hydraulic pressure liquid,
-for storing the pressure reservoir (7,8,9) of hydraulic energy,
-wherein, described high-pressure pump (5,6) and described high voltage machines (3,4) are by same hydraulic press (3,4,5,6)
Formed and described hydraulic press (3,4,5,6) includes at least one movable operating mechanism (26) and extremely
The working chamber (28) of a few variable volume, it is characterised in that
Described hydraulic press (3,4,5,6) each working chamber (28) includes a low pressure valve (53) and one
High pressure valve (50), this low pressure valve is with being used for opening and closing the low pressure actuator of this low pressure valve (53)
(54), this high pressure valve with being used for opening and closing the high pressure accumulator (51) of this high pressure valve (50),
Hydraulic fluid to be imported and deriving described working chamber (28).
Hydraulic hybrid system the most according to claim 1, it is characterised in that described hydraulic hybrid
System (1), the most described hydraulic press (3,4,5,6), including control unit (30), described control is single
Unit (30) can control described at least one low pressure valve (53) and at least one high pressure valve described (50)
Opening and closing.
Hydraulic hybrid system the most according to claim 1 and 2, it is characterised in that
At least one movable operating mechanism (26) described, especially working piston (27), indirectly
It is supported in the drive shaft (12) of rotation, each flexible member (59), especially spring (58),
Cither indirectly or directly by power, especially pressure, it is applied in described at least one operating mechanism (26),
The rotary motion making described drive shaft (12) causes shaking of described at least one operating mechanism (26)
Swing motion, and/or
Described at least one operating mechanism (26) can be in the minimum of the working chamber (28) with correspondence
The top dead-centre of volume and have correspondence working chamber (28) maximum volume bottom dead centre between move,
And/or
Described at least one low pressure valve (53) respectively includes that one can be moved by low pressure actuator (54)
Valve piston (55), described at least one high pressure valve (50) respectively include one can be by high pressure accumulator (51)
The valve piston (55) of motion, and/or
At least one low pressure actuator (54) described is made up of electric magnet (52), described at least one
High pressure accumulator (51) is made up of electric magnet (52).
4. according to described hydraulic hybrid system one or more in aforementioned claim, it is characterised in that
Described hydraulic press (3,4,5,6) includes the rotation of the rotary angle position for sensing described drive shaft (12)
Gyration sensor (60), can control according to the described rotary angle position of described drive shaft (12)
Described at least one low pressure valve (53) and the opening and closing of at least one high pressure valve described (50).
5. according to described hydraulic hybrid system one or more in aforementioned claim, it is characterised in that
So control at least one high pressure valve described of the described hydraulic press (5,6) as high-pressure pump (6)
(50) and at least one low pressure valve described (53): make described at least one operating mechanism (26)
During bottom dead centre upwards dead-centre motion, described at least one high pressure valve (50) is that open and described
At least one low pressure valve (53) is to cut out, and described at least one operating mechanism (26) from upper
During the downward dead-centre motion in dead point described at least one high pressure valve (50) be close and described at least
One low pressure valve (53) is opened, and/or
So control at least one height described of the described hydraulic press (3,4) as high voltage machines (3,4)
Pressure valve (50) and at least one low pressure valve described (53): make described at least one operating mechanism (26)
During bottom dead centre upwards dead-centre motion, described at least one high pressure valve (50) is to close and described
At least one low pressure valve (53) is opened, and described at least one operating mechanism (26) from upper
During the downward dead-centre motion in dead point described at least one high pressure valve (50) be that open and described at least
One low pressure valve (53) is to close.
6. according to described hydraulic hybrid system one or more in aforementioned claim, it is characterised in that
Use the fuel of described internal combustion engine (18), especially diesel oil, as storing hydraulic energy
Hydraulic fluid, the most only use fuel as hydraulic fluid, and/or
In the case of described high pressure valve (50) is opened, described working chamber (28) sprays with at least one
Device (17) and/or high pressure accumulator (8) are in the connection of water conservancy diversion, and/or
Described working chamber (28) and low pressure memorizer (9) in the case of described low pressure valve (53) is opened,
Especially fuel tank (10), is in the connection of water conservancy diversion.
7. for the internal-combustion engine system (2) of motor vehicles, including:
-high-pressure injection system (19), described high-pressure injection system (19) has ejector high-pressure pump (15),
Preferably high voltage rail (16), is preferred for from fuel tank (10) defeated to described ejector high-pressure pump (15)
Send the prime delivery pump (11) of fuel,
-preferred drivetrain (20), described drivetrain (20) for driving have internal combustion engine (18) and
/ or the driving wheel (25) of motor vehicles of hydraulic motor (3,4),
-hydraulic hybrid system (1), described hydraulic hybrid system (2) has for by hydraulic energy transfer
For the hydraulic high-pressure motor (3,4) of mechanical energy, for by hydraulic high-pressure pump that changes mechanical energy is hydraulic energy
(5,6), for storing the pressure reservoir (7,8,9) of hydraulic energy,
It is characterized in that,
Described hydraulic hybrid system (1) according to described structure one or more in aforementioned claim, and
/ or
Described ejector high-pressure pump (15) is formed by described high-pressure pump (5,6).
8. be used for running hydraulic hybrid system (1), especially in accordance with in claim 1 to 6 one or
Multinomial described hydraulic hybrid system (1), and/or internal-combustion engine system (2), want especially in accordance with right
Seek the internal-combustion engine system (2) described in 7, method, there are following steps:
-by hydraulic pump (5,6) from low pressure memorizer (9) to high pressure accumulator (8) delivery hydraulic pressure
Liquid so that be hydraulic energy by changes mechanical energy by described hydraulic pump (5,6),
-to described low pressure memorizer (9) and pass through hydraulic motor (3,4) from described high pressure accumulator (8)
Guide described hydraulic fluid so that hydraulic energy is converted into mechanical energy in described hydraulic motor (3,4),
This mechanical energy is used for driving described motor vehicles,
It is characterized in that, as the described hydraulic pump (5) of high-pressure pump (6) with as high voltage machines (4)
Described hydraulic motor (3) by same hydraulic press (3,4,5,6) constitute, at this same hydraulic press (3,4,5,6)
On make at least one operating mechanism (26) move so that corresponding to described at least one operating mechanism (26)
Working chamber (28) volume change.
Method the most according to claim 8, it is characterised in that
Described hydraulic press (3,4,5,6) each working chamber (28) includes a low pressure valve (53) and one
High pressure valve (50), this low pressure valve is with being used for opening and closing the low pressure actuator of this low pressure valve (53)
(54), this high pressure valve with being used for opening and closing the high pressure accumulator (51) of this high pressure valve (50),
So that by hydraulic fluid import and derive described working chamber (28) and/or
Especially simply use the fuel of described internal combustion engine (18), preferably diesel oil, as hydraulic fluid, especially
It is that described fuel is flowed to described high pressure by the described hydraulic press (5,6) as high-pressure pump (5,6) and deposits
Reservoir (8) and/or flowed to by the described hydraulic press (5,6,15) as ejector high-pressure pump (15)
At least one ejector (17) of described internal combustion engine (18), and/or
Described at least one high pressure valve (50) of described hydraulic press (3,4,5,6) passes through fuel under high pressure pipeline
(33,34) with at least one ejector (17) of described internal combustion engine (18) and/or and high pressure accumulator
(8) connection of water conservancy diversion is formed, and/or
Described at least one low pressure valve (53) is by fuel channel (13,14,40) and fuel tank (10)
Form the connection of water conservancy diversion, and/or
Described at least one operating mechanism (26), especially working piston (27), top dead-centre and under
Especially move by drive shaft (12) between dead point.
10. according to the method described in claim 9 or 10, it is characterised in that in described hydraulic press (5,6)
When running as high-pressure pump (5,6), described at least one operating mechanism (26) from bottom dead centre upwards
During dead-centre motion, described at least one high pressure valve (50) is at least one low pressure that open and described
Valve (53) is to cut out, drive shaft (12) transfer force to described at least one operating mechanism (26)
On, it is used for making described operating mechanism (26) opposing be applied to described operating mechanism (26) by described hydraulic fluid
On pressure from bottom dead centre upwards dead-centre motion so that changes mechanical energy is hydraulic energy, described hydraulic fluid
It is conveyed out from described at least one working chamber (28), described at least one operating mechanism (26)
During the downward dead-centre motion of top dead-centre, described at least one high pressure valve (50) is to close and described
At least one low pressure valve (53) is opened so that hydraulic fluid is transported in working chamber (28).
11. according to Claim 8 to described method one or more in 10, it is characterised in that
When described hydraulic press (3,4) runs as high voltage machines (3,4), at least one operating mechanism described
(26) during the downward dead-centre motion of top dead-centre, described at least one high pressure valve (50) is to open also
And described at least one low pressure valve (53) is to close, hydraulic fluid it is applied to described operating mechanism (26)
On pressure be passed in drive shaft (12) so that hydraulic energy transfer is mechanical energy, hydraulic fluid quilt
Be transported in described at least one working chamber (28), described at least one operating mechanism (26) from
During bottom dead centre upwards dead-centre motion described at least one high pressure valve (50) be close and described extremely
A few low pressure valve (53) is opened so that hydraulic fluid is transported out from working chamber (28).
12. methods according to claim 11, it is characterised in that in described hydraulic press (3,4)
When running as high voltage machines (3,4), described at least one operating mechanism (26) from top dead-centre to
During bottom dead centre motion, described at least one high pressure valve (50) is that open and described at least one is low
Pressure valve (53) is to close, described at least one operating mechanism (26) from top dead-centre to bottom dead centre
During motion, described high pressure valve (50) is to close so that hydraulic fluid is in described working chamber (28)
Inflow interrupt, described high pressure valve (50) is more early closed, and the fewest hydraulic energy is converted into mechanical energy,
Vice versa.
13. methods according to claim 12, it is characterised in that in described hydraulic press (3,4)
When running as high voltage machines (3,4), described at least one operating mechanism (26) from top dead-centre to
During bottom dead centre motion, after described high pressure valve (50) is closed or when the down periods maybe will close,
Described low pressure valve (53) is opened, to avoid pressure violent in described working chamber (28) to reduce.
14. according to described method one or more in claim 11 to 13, it is characterised in that
When described hydraulic press (3,4) runs as high voltage machines (3,4), at least one working machine described
Structure (26) described at least one high pressure valve (50) during bottom dead centre upwards dead-centre motion is to close,
Described at least one low pressure valve (53) is initially that open and is closed arriving before top dead center, makes
Must be in described at least one operating mechanism (26) institute during described bottom dead centre moves to described top dead-centre
The pressure stated in working chamber (28) rises due to described high pressure and low pressure valve (50,53) closedown,
Described top dead-centre, pressure piping (33,34) on working chamber (28) and described high pressure valve (50),
Especially exist between fuel under high pressure pipeline (33,34) than arrive do not close before top dead-centre described in extremely
Pressure differential less in the case of a few low pressure valve (53), thus, described high pressure accumulator (51)
The valve needing less power to be used for opening described high pressure valve (50) because of described less pressure differential is lived
Plug (55).
15. according to described method one or more in claim 10 to 14, it is characterised in that
When described hydraulic press (5,6) runs as high-pressure pump (5,6), at least one operating mechanism described
(26) at least one high pressure valve described and low pressure valve during bottom dead centre moves to described top dead-centre
(50,53) are to close in the incipient stage of the motion of described operating mechanism (26) so that described work
Make the pressure in chamber (28) to rise, thus, at described working chamber (28) and described high pressure valve (50)
On pressure piping (33,34), especially exist and do not having between fuel under high pressure pipeline (33,34)
Start time close described high pressure valve (50) in the case of compare less pressure differential, described at least
Described high pressure valve (50) is the most only opened after the incipient stage of the motion of one operating mechanism (26), by
This, described high pressure accumulator (51) needs little power to be used for opening because of described less pressure differential
The valve piston (55) of described high pressure valve (50).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013225567.5A DE102013225567A1 (en) | 2013-12-11 | 2013-12-11 | Hydraulic hybrid system |
| DE102013225567.5 | 2013-12-11 | ||
| PCT/EP2014/074750 WO2015086264A1 (en) | 2013-12-11 | 2014-11-17 | Hydraulic hybrid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105980184A true CN105980184A (en) | 2016-09-28 |
Family
ID=52014019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480075364.4A Pending CN105980184A (en) | 2013-12-11 | 2014-11-17 | Hydraulic hybrid system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105980184A (en) |
| DE (1) | DE102013225567A1 (en) |
| WO (1) | WO2015086264A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068696A (en) * | 2004-09-30 | 2007-11-07 | 博世力士乐公司 | Hydraulic hybrid drive system |
| CN101704336A (en) * | 2009-09-25 | 2010-05-12 | 徐工集团工程机械有限公司 | Energy-saving hydraulic hybrid power system of loader |
| CN201970842U (en) * | 2011-03-22 | 2011-09-14 | 北京理工大学 | Hydraulic combination driving system for cascade machine |
| CN102348893A (en) * | 2009-04-07 | 2012-02-08 | 阿尔特弥斯智能动力有限公司 | Fluid working machine and method of operating a fluid working machine |
| DE102011002967A1 (en) * | 2011-01-21 | 2012-07-26 | Robert Bosch Gmbh | Hybrid drive for use as e.g. internal combustion engine of passenger car, has hydraulically powered energy converter and combustible gas powered energy converter cooperated with each other and assigned to energy-storage systems |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008054819A1 (en) | 2008-12-17 | 2010-07-01 | Robert Bosch Gmbh | Hybrid drive system |
| DE102013204025A1 (en) | 2013-03-08 | 2014-09-11 | Robert Bosch Gmbh | Hydraulic hybrid system |
-
2013
- 2013-12-11 DE DE102013225567.5A patent/DE102013225567A1/en not_active Withdrawn
-
2014
- 2014-11-17 WO PCT/EP2014/074750 patent/WO2015086264A1/en active Application Filing
- 2014-11-17 CN CN201480075364.4A patent/CN105980184A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101068696A (en) * | 2004-09-30 | 2007-11-07 | 博世力士乐公司 | Hydraulic hybrid drive system |
| CN102348893A (en) * | 2009-04-07 | 2012-02-08 | 阿尔特弥斯智能动力有限公司 | Fluid working machine and method of operating a fluid working machine |
| CN101704336A (en) * | 2009-09-25 | 2010-05-12 | 徐工集团工程机械有限公司 | Energy-saving hydraulic hybrid power system of loader |
| DE102011002967A1 (en) * | 2011-01-21 | 2012-07-26 | Robert Bosch Gmbh | Hybrid drive for use as e.g. internal combustion engine of passenger car, has hydraulically powered energy converter and combustible gas powered energy converter cooperated with each other and assigned to energy-storage systems |
| CN201970842U (en) * | 2011-03-22 | 2011-09-14 | 北京理工大学 | Hydraulic combination driving system for cascade machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013225567A1 (en) | 2015-06-11 |
| WO2015086264A1 (en) | 2015-06-18 |
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Application publication date: 20160928 |