WO2018114372A1 - Dispositif de véhicule régulant une pression de fluide - Google Patents

Dispositif de véhicule régulant une pression de fluide Download PDF

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Publication number
WO2018114372A1
WO2018114372A1 PCT/EP2017/081915 EP2017081915W WO2018114372A1 WO 2018114372 A1 WO2018114372 A1 WO 2018114372A1 EP 2017081915 W EP2017081915 W EP 2017081915W WO 2018114372 A1 WO2018114372 A1 WO 2018114372A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
vehicle device
valve
unit
closure element
Prior art date
Application number
PCT/EP2017/081915
Other languages
German (de)
English (en)
Inventor
Jörg BÜRSSNER
Oliver Thode
Original Assignee
Eto Magnetic Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eto Magnetic Gmbh filed Critical Eto Magnetic Gmbh
Publication of WO2018114372A1 publication Critical patent/WO2018114372A1/fr

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4165—Control of cooling or lubricating
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/024—Controlling the inlet pressure, e.g. back-pressure regulator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
    • G05D16/2033—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged in series

Definitions

  • the invention relates to a vehicle device according to the preamble of claim 1.
  • valve unit designed as a slide valve, which is intended to control an oil pressure in a main line of a heat engine.
  • the object of the invention is, in particular, a generic
  • the invention is based on a vehicle device having at least one valve unit which is at least provided to regulate a fluid pressure of a pressure fluid, such as oil, in at least one fluid line.
  • a pressure fluid such as oil
  • the fluid line is designed as a main line, advantageously main oil line, a heat engine and the valve unit as a pilot-operated pressure control valve unit.
  • the term "provided” is to be understood to mean in particular specially designed and / or equipped.Assuming that an object is intended for a specific function should in particular mean that the object fulfills this specific function in at least one application and / or operating state and / or executes.
  • a "vehicle device” is to be understood as meaning, in particular, at least one part, in particular a subassembly, of a vehicle and advantageously a heat engine, in particular an internal combustion engine of the vehicle,
  • the vehicle device may also include the fluid line, preferably designed as a main line Heat engine, at least one, for example, as an oil sump, as an oil reservoir, formed as an oil pan and / or as an oil tank, pressure fluid storage unit and / or the pressurized fluid.
  • the fluid line connects the pressure fluid storage unit with at least one further component of the vehicle device and advantageously with at least one further component of the heat engine, such as a crankcase, an engine head, a camshaft, a phaser, a piston engine and / or a cylinder.
  • the heat engine such as a crankcase, an engine head, a camshaft, a phaser, a piston engine and / or a cylinder.
  • valve unit should be understood to mean, in particular, a unit, in particular pressure control valve unit, which is provided in particular in at least one operating state for the pressure fluid and / or at least one fluid flow of the pressure fluid, in particular at least
  • the valve unit advantageously comprises at least one fluid valve and, with particular advantage, several
  • Fluid valves The fact that an object "influences" another object should in this context be understood, in particular, to mean that the further object has and / or assumes a different state and / or a different course in the absence and / or inactivity of the object than in the case of a presence
  • the valve unit is particularly preferably provided in the operating state for adaptation, in particular for increasing and / or reducing, the fluid pressure in the fluid line with the
  • a "pilot-operated pressure control valve unit” is to be understood as meaning in particular a preferably two-stage valve unit, which in particular has at least one, advantageously exactly one, main control stage and at least one, advantageously exactly one,
  • Precontrol stage has.
  • the main control stage preferably has a direct connection and the pilot control stage has an indirect connection to the fluid line.
  • Embodiment may be a vehicle device having improved characteristics be provided a pressure control.
  • an efficiency in particular an energy efficiency, a maintenance efficiency, a control efficiency, a component efficiency and / or a cost efficiency, can be improved.
  • a service life and / or a fatigue strength of the vehicle device can be improved, in particular due to lower volume flows in comparison to known valve units.
  • the fluid line at least one
  • Pressure fluid distribution unit such as an oil gallery, which is provided for a distribution of the pressurized fluid
  • valve unit is provided at least to regulate the fluid pressure in the pressure fluid distribution unit.
  • the fluid line can advantageously at least one, in particular with the pressure fluid storage unit operatively connected, fluid pump, at least one filter, at least one
  • Heat exchanger and / or a pressure fluid-water heat exchanger include.
  • a particularly advantageous pressure control in particular in a main line of a heat engine, can be achieved.
  • a reliability can be increased.
  • the valve unit has at least one first fluid valve with at least one movably mounted, advantageously spring-mounted, first closure element, in particular a particularly simple regulation of the fluid pressure can be achieved.
  • the first fluid valve further comprises at least one first valve stop and / or at least one first valve seat, with which the first closure element
  • the first fluid valve preferably comprises a return unit, which is provided to act on the first closure element with a restoring force.
  • the reset unit of the first fluid valve may also comprise at least two, advantageously differently formed, restoring elements.
  • the first fluid valve is designed as a main control stage.
  • the first fluid valve forms the main control stage of the valve unit. In this way, in particular an advantageously fast pressure adjustment can be achieved.
  • the first fluid valve comprises at least one, advantageously exactly one, control channel which connects a main pressure side of the first closure element facing the fluid line to a control pressure side of the first closure element facing away from the fluid line, in particular fluidically.
  • the control channel has at least one first control opening facing the main pressure side and at least one of the
  • the main pressure side is arranged opposite the control pressure side.
  • the control pressure side is arranged opposite the control pressure side.
  • Main pressure side and / or the control pressure side preferably formed as a fluid pressure surfaces.
  • a "fluid pressure surface” is to be understood as meaning, in particular, a surface and / or a group of surfaces which are / are, due to a fluid pressure applied to and / or acting on the surface, at least one mobility of the first closure element, in particular into one defined direction, influence and / or movement of the first
  • Closing element in particular in the defined direction to effect.
  • the control channel is formed as a bore in the first closure element, whereby in particular an advantageously simple and / or cost-effective production can be achieved.
  • control channel could, for example, in an edge region of the first
  • control channel is arranged at least partially centrally in the first closure element.
  • control channel is particularly advantageous is the control channel to at least a large part and particularly preferably arranged completely centrally in the first closure element. At least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85%, and particularly advantageously at least 95% are to be understood as meaning "at least a large part.” In this way, an advantageously space-saving
  • first control opening and the second control opening may, for example, be aligned at least substantially perpendicular to one another.
  • the control channel has a first control opening facing the main pressure side, in particular the first control opening already mentioned, and a second control opening facing the control pressure side, in particular the second control opening already mentioned above, which at least substantially are aligned parallel to each other.
  • at least substantially parallel is meant in particular an orientation of a direction relative to a reference direction, in particular in a plane, wherein the direction relative to the reference direction is a deviation
  • control channel has a straight course and preferably extends completely through the first closure element. As a result, in particular a control can be further simplified.
  • the first fluid valve has at least one, advantageously exactly one, control panel, which is intended to reduce a flow cross-section of the control channel, in particular at least in a partial region of the control channel.
  • the control panel at least narrows the control channel sections. In this way, in particular an advantageously simple calculation of a flow through the control channel can be achieved.
  • Control diaphragm in particular in the flow direction of the pressure fluid through the control channel and / or in the longitudinal direction of the first closure element, an axial extension length which is at most 45%, preferably at most 35% and more preferably at most 25%, an axial extension length of the control channel.
  • a "longitudinal extension direction" of an object should be understood to mean, in particular, a direction which runs parallel to a direction of a longest side and / or edge of the object, thereby further reducing flow influences, in particular when calculating a flow through the control channel.
  • control panel defines a first opening with a first one
  • Diameter and the control channel a second opening, in particular the first
  • Control opening and / or the second control opening with a second diameter, wherein the first diameter is smaller than the second diameter by at least 20%, advantageously by at least 40%, preferably by at least 60% and more preferably by at least 80%.
  • the control panel can in particular immediately before, in particular in a region of the main pressure side, and / or immediately behind the first closure element,
  • control panel in particular in a region of the control pressure side, be arranged.
  • control panel is arranged within the first closure element, whereby in particular a particularly advantageous flow behavior and / or an almost space-neutral design can be achieved.
  • an area of a control panel is arranged within the first closure element, whereby in particular a particularly advantageous flow behavior and / or an almost space-neutral design can be achieved.
  • Object should be understood in particular a volume of a smallest imaginary cuboid, which just completely encloses the object.
  • control panel may in particular be formed separately from the first closure element, for example in the form of a replaceable insert disc, whereby in particular an advantageous adaptation of the valve unit can be achieved.
  • control panel in one piece is formed with the first closure element.
  • integral is to be understood to mean, in particular, at least materially bonded and / or formed with one another
  • the material bond can be produced, for example, by an adhesive process, an injection process, a welding process, a soldering process and / or another process
  • this is a piece of a single blank, a mass and / or a casting, such as in an extrusion process, in particular a single and / or
  • Multi-component extrusion process and / or an injection molding process, in particular a one- and / or multi-component injection molding process produced.
  • a particularly stable and / or robust valve unit can be provided, whereby advantageously an operational safety can be increased.
  • control panel is formed as a further hole in the first closure element, whereby in particular a particularly simple and / or cost-effective production can be achieved.
  • a particularly compact embodiment can be achieved, in particular, if the control panel is arranged in a vicinity of the control pressure side.
  • a "near zone” is to be understood in particular as meaning a spatial area which is formed by points which are less than a third, preferably less than a quarter, preferably less than one sixth and particularly preferably less than one tenth of a longitudinal extent of the first closure element of a Reference point and / or a reference component, in particular the control pressure side, are removed and / or each a distance of at most 2 cm, preferably of at most 1 cm and more preferably of at most 0.5 cm from a reference point and / or a reference component, in particular Particularly preferably, the control panel directly adjoins the control pressure side and / or opens directly into a control space, in particular at least partially delimited by the control pressure side be understood in a longitudinal direction of the object.
  • the first fluid valve is designed as a slide valve.
  • the first one Closure element in particular as, in particular linearly displaceable
  • the first fluid valve is designed as a seat valve.
  • the first closure element is designed in particular as a, in particular linearly displaceable, valve tappet. In this way, in particular, an advantageously reliable valve unit can be provided.
  • valve unit has at least one second fluid valve with at least one movably mounted, advantageously spring-mounted, second closure element.
  • the second fluid valve further comprises at least one second valve stop and / or at least one second valve seat, with which the second closure element in particular in one
  • Closing position is in communication, in particular to at least partially block and / or restrict movement and / or mobility of the first fluid valve. In this way, in particular a particularly advantageous pressure control can be achieved.
  • the second fluid valve is designed as a pilot stage.
  • the second fluid valve forms the pilot stage of the valve unit.
  • an advantageously regulated pressure adjustment can be achieved.
  • the second fluid valve is designed as an advantageously electromagnetic throttle valve, in particular during operation, a particularly simple adaptation of the fluid pressure, in particular during operation and / or to different driving conditions, can be achieved in particular.
  • the second fluid valve could be formed, for example, as a slide valve.
  • the second fluid valve is designed as a seat valve.
  • the second closure element is designed in particular as, in particular linearly displaceable, valve tappet. In this way, in particular, an advantageously reliable valve unit can be provided.
  • the second closure element at least partially and preferably at least a large part of a magnetic, preferably a ferrimagnetic and / or ferromagnetic material, in particular such that a mobility and / or movement of the second closure element can be influenced by means of a magnetic field and / or by means of a magnetic force.
  • a magnetic field and / or by means of a magnetic force in particular an advantageously easy adjustability of the valve unit can be achieved.
  • the second fluid valve comprises a reset unit, which is provided to the second closure element with a
  • Fluid valve also at least two, advantageously differently formed,
  • a Vehicle device proposed, with at least one valve unit, which is at least provided to regulate a fluid pressure of a pressurized fluid, such as oil in at least one fluid line, wherein the vehicle device comprises at least one actuator unit, which is provided at least one adjusting parameter of the valve unit, in particular of the first fluid valve and / or advantageously at least the second fluid valve to change, in particular depending on a driving condition.
  • a pressurized fluid such as oil in at least one fluid line
  • valve unit in particular the first fluid valve and / or the second fluid valve, in operative connection, unit understood, which is in particular provided to provide at least one operating state, a force and thus in particular the control parameters, such as a mobility of the first closure element , a mobility of the second
  • Closure element a force acting on the first closure element restoring force and / or acting on the second closure element restoring force to influence.
  • the actuator unit is intended to convert an external stimulus, such as a magnetic signal, a thermal signal, a mechanical signal and / or an electrical signal, into a movement, in particular a
  • Closure element, implement and / or by means of the external stimulus one
  • Mobility advantageously the first closure element and / or the second
  • the actuator unit is provided to the adjusting parameters of the valve unit immediately after and / or advantageously immediately before a switching operation, in particular between two gears of the
  • the actuator unit can be formed at least partially in one piece with a reset unit, in particular the first fluid valve and / or the second fluid valve.
  • the objects have at least one common component and / or at least one component of the object and / or the object in one piece with at least one component
  • all the components of the object are preferably formed in one piece with at least one component of the further object
  • a pressure control can be improved by a corresponding design of the vehicle device.
  • an efficiency in particular an
  • the actuator unit could comprise at least one servomotor for changing the setting parameter.
  • the actuator unit comprises at least one magnetic element and is provided to provide at least one magnetic actuating force for changing the setting parameter.
  • This is advantageous Magnetic element provided to provide in at least one operating state for changing the setting parameter, in particular on the first closure element and / or advantageously the second closure element acting, to provide magnetic field.
  • the magnetic element is advantageously arranged in a vicinity of the first closure element and / or advantageously of the second closure element.
  • the magnetic element could in particular be designed as a permanent magnet and, for example, movable relative to the first closure element and / or the second
  • the magnetic element is advantageous as
  • Coil system advantageously with at least one coil and / or with at least one electromagnet formed.
  • an advantageously simple, fast and / or controllable change of the setting parameter can be achieved.
  • a structurally particularly simple and / or space-saving designed actuator can be provided.
  • the vehicle device has at least one pressure sensor, which is arranged in the fluid line and advantageously the pressure fluid distributor unit and is provided to the actuator unit for changing the
  • an advantageously automated adjustment of the setting parameter can be achieved, in particular as a function of a driving condition.
  • the setting parameter is a restoring force of a restoring unit acting on the second closure element, in particular the restoring unit of the second fluid valve already mentioned above, an advantageous regulation of the fluid pressure can be achieved, in particular during operation.
  • the actuator unit is provided in at least one operating state
  • a positioning force provided by the actuator unit is in this case directed counter to a restoring force provided by the reset unit of the second fluid valve, in particular in such a way that one on the second
  • the actuator unit is provided to provide a maximum actuating force which, in particular by at least 2.5%, advantageously by at least 5%, preferably by at least 7.5% and more preferably by at least 10%, less than a maximum restoring force of the return unit, in particular of the second fluid valve, is.
  • the maximum restoring force of the restoring unit, in particular of the second fluid valve, and the maximum actuating force of the actuator unit are matched to one another such that one on the second
  • Residual pressure acting closure element at least 0.25 bar, preferably at least 0.5 bar, preferably at least 0.75 bar and more preferably at least 1 bar and / or at most 2.25 bar, advantageously at most 2 bar, preferably at most 1.75 bar and especially preferably not more than 1, 5 bar. In this way, in particular a residual pressure holding force can be provided, whereby advantageously an operational safety can be increased.
  • the vehicle device comprises a securing unit, which is provided in at least one fault operating state, such as when exceeding and / or falling below a certain fluid temperature and / or a certain fluid pressure, advantageously in the fluid line in a defect and / or failure of a component of the vehicle device, such as a power electronics and / or the actuator unit, and / or in the event of a power failure to move the second closure element in at least one defined securing position.
  • a securing unit which is provided in at least one fault operating state, such as when exceeding and / or falling below a certain fluid temperature and / or a certain fluid pressure, advantageously in the fluid line in a defect and / or failure of a component of the vehicle device, such as a power electronics and / or the actuator unit, and / or in the event of a power failure to move the second closure element in at least one defined securing position.
  • the securing unit is provided in at least a first error operating state, in which in particular a fluid pressure of the pressure fluid in the fluid line exceeds a limit, the second
  • Closure element in at least one defined first securing position, in particular an open position, and in at least one second error operating state, in particular in case of failure of the actuator unit, the second closure element in at least one, in particular of the defined first securing position
  • the securing unit is at least partially formed integrally with the return unit. In this way, in particular, an advantageously compact and / or space-efficient vehicle device can be provided.
  • a particularly efficient vehicle device can also be provided if the securing unit is formed at least partially in one piece with the actuator unit.
  • the invention relates to a method for operating a vehicle device, wherein a fluid pressure of a pressure fluid, such as oil, in at least one designed as a main line, advantageously main oil line, a heat engine fluid line is controlled by means of a pilot operated as a pressure control valve unit.
  • a pressure fluid such as oil
  • the invention relates to a method for operating a vehicle device, wherein by means of a valve unit, a fluid pressure of a pressurized fluid, such as oil, regulated in at least one fluid line and at least one adjusting parameter of
  • Valve unit in particular depending on a driving condition, is changed.
  • the pressurized fluid is thereby, in particular by means of a fluid pump of
  • Fluid line starting from a pressure fluid storage unit by a thermostat of the fluid line, in particular for detecting a temperature of the pressurized fluid, and then optionally through a filter of the fluid line in a
  • Pressure fluid distributor unit pumped.
  • the pressure fluid is advantageous in the
  • a pressure control can be improved.
  • an efficiency in particular an energy efficiency, a maintenance efficiency, a control efficiency, a
  • Component efficiency and / or cost efficiency can be improved.
  • a service life and / or a fatigue strength of the vehicle device can be improved, in particular due to lower volume flows in comparison to known valve units.
  • Mobility of the valve unit can be achieved.
  • the vehicle devices and the methods for operating the vehicle devices should not be limited to the application and embodiment described above.
  • the vehicle devices and methods for operating the vehicle devices to perform a functionality described herein may have a different number than a number of individual elements, components, and units referred to herein.
  • Fig. A part of a vehicle with a vehicle device in one
  • Fig 5a-b shows a further embodiment of a vehicle device
  • valve unit of FIGS. 5a-b in a second operating state in various representations
  • FIG. 7 shows a further embodiment of a vehicle device with a
  • FIG. 1 shows at least part of a vehicle 52a, in the present case
  • a heat engine of the vehicle 52a in particular, a heat engine of the vehicle 52a, with a
  • Vehicle device in a schematic representation.
  • the vehicle device includes a pressurized fluid storage unit 54a.
  • Pressure fluid storage unit 54a is exemplified as an oil tank.
  • Pressure fluid storage unit 54a is provided for storing a pressurized fluid 12a, in this case in particular oil.
  • the vehicle device comprises a fluid line 14a.
  • the fluid line 14 a is the main line, in the present case in particular as a main oil line, the
  • the fluid conduit 14a connects the
  • Pressure fluid storage unit 54a with at least one further component of
  • Vehicle device such as a crankcase, an engine head, a camshaft, a phaser, a piston engine and / or a cylinder (not shown).
  • the fluid line 14a is provided for supplying the at least one further component with the pressure fluid 12a.
  • the fluid line 14a is provided for supplying a plurality of further components of the vehicle device with the pressure fluid 12a.
  • the fluid line 14a comprises a fluid pump 56a, in particular in operative connection with the pressure fluid storage unit 54a, and a pressure fluid distributor unit 16a.
  • the pressure fluid distribution unit 16a is formed in the present case by way of example as an oil gallery and provided for a distribution of the pressurized fluid 12a.
  • the fluid line 14a comprises a thermostat 58a designed in particular as a wax element for detecting a temperature of the pressure fluid 12a, a filter 60a for filtering the pressure fluid 12a and a cooling unit 62a for selectively cooling the pressure fluid
  • Pressurized fluid 12a In principle, however, it is also conceivable to dispense with a pressure fluid distributor unit, a thermostat, a filter and / or a cooling unit.
  • a fluid line could comprise further components, such as at least one heat exchanger, in particular a pressure fluid-air heat exchanger and / or a pressure fluid-water heat exchanger.
  • the pressurized fluid 12a is supplied by the fluid pump 56a from the pressurized fluid storage unit 54a through the thermostat 58a and then selectively and more particularly depending on a temperature of the pressurized fluid 12a through the filter 60a into the pressurized fluid distribution unit 16a or via the cooling unit 62a and then through the filter 60a pumped into the pressure fluid distribution unit 16a.
  • the pressure fluid 12a in the pressure fluid distribution unit 16a is applied to the other components of the
  • the vehicle device comprises a valve unit 10a (see in particular also FIGS. 2, 3 and 4).
  • the valve unit 10a is formed as a structural unit.
  • the valve unit 10a in this case comprises exactly one, in particular designed as a fluid housing, valve housing 64a.
  • the valve unit 10a is designed as a pressure regulating valve unit.
  • the valve unit 10a is formed in two stages.
  • the valve unit 10a is designed as a pilot-operated pressure regulating valve unit.
  • the valve unit 10a is fluidly disposed between the pressure fluid storage unit 54a and the pressure fluid distribution unit 16a.
  • the valve unit 10a is in
  • valve unit 10a is arranged downstream of the filter 60a, viewed in the direction of flow of the pressurized fluid 12a.
  • valve unit 10 a is provided to a fluid connection 14 a different from the fluid line with the
  • valve unit 10a is connected to the pressure fluid storage unit 54a by means of a control line 66a of the vehicle device that is formed differently from the fluid line 14a.
  • a valve unit could also be a fluid connection with one of a
  • Pressure fluid storage unit have various other pressure fluid storage unit.
  • the valve unit 10a is provided in the present case to adapt the fluid pressure in the fluid line 14a, in particular depending on a driving condition.
  • the valve unit 10a comprises at least one fluid valve 18a, 38a (compare, in particular, FIGS. 2, 3 and 4).
  • the valve unit 10a comprises two fluid valves 18a, 38a.
  • a valve unit could also comprise at least three and / or at least four fluid valves.
  • the fluid valves 18a, 38a are different formed from each other.
  • the fluid valves 18a, 38a are of a different type.
  • a first fluid valve 18a of the fluid valves 18a, 38a directly adjoins the fluid conduit 14a.
  • the first fluid valve 18a has a direct connection to the fluid line 14a.
  • the first fluid valve 18a is formed as a main control stage.
  • the first fluid valve 18a is designed as a slide valve.
  • the first fluid valve 18a is provided to block a fluid flow of the pressurized fluid 12a from the fluid conduit 14a through the valve unit 10a and more particularly via the control conduit 66a into the pressurized fluid storage unit 54a in at least one operating condition and in at least one other
  • the first fluid valve 18a comprises a first closure element 20a.
  • Closure element 20a is disposed within the valve housing 64a.
  • the first closure element 20a is designed as a slide element and / or piston element.
  • the first closure element 20a has an at least substantially H-shaped
  • the first closure element 20a has a main pressure side 24a, which faces the fluid line 14a and is designed in particular as a fluid pressure surface.
  • the first closure element 20a has a control pressure side 26a facing away from the fluid line 14a, in particular formed as a fluid pressure surface.
  • the main pressure side 24a of the control pressure side 26a in particular with respect to a L Lucassensschrecknchtung of the first closure element 20a, arranged opposite.
  • the first closure element 20a is also movably mounted, in particular in the longitudinal extension direction of the first closure element 20a.
  • the first closure element 20a is translationally and / or linearly movable in the present case.
  • the first fluid valve 18a includes a first valve stopper 68a.
  • the first valve stopper 68a is formed integrally with the valve housing 64a.
  • the first valve stopper 68a is formed as a projection of the valve housing 64a.
  • the first valve stop 68a contacts the first closure element 20a, in particular the main pressure side 24a, in a closed position of the first closure element 20a, in particular such that in the closed position of the first closure element 20a, a fluid flow of the pressure fluid 12a from the fluid line 14a through the valve unit 10a at least substantially is blocked.
  • the first fluid valve 18a includes a first reset unit 70a.
  • the first reset unit 70a is disposed inside the valve housing 64a.
  • the first reset unit 70a is arranged on a side of the first closure element 20a facing the control pressure side 26a.
  • the first reset unit 70a is defined in one of the valve housing 64a and at least partially by the
  • the first return unit 70a is provided to act on the first closure element 20a with a restoring force, in particular in the direction of the closure position of the first closure element 20a.
  • the first reset unit 70a comprises at least a first return element 74a.
  • the first return element 74a is formed in the present case as a spring element. The first return element 74a contacts the first closure element 20a,
  • a first return element could also be used as a magnetic element and / or as a magnetically active element, such as
  • a first reset unit could have a plurality of first reset elements, such as at least two first reset elements
  • the first fluid valve 18a comprises at least one control channel 22a.
  • the first fluid valve 18a comprises exactly one control channel 22a.
  • the control channel 22a is arranged centrally in the first closure element 20a.
  • the control channel 22a is rectilinear.
  • the control channel 22a in this case has a straight course, which is in particular parallel to the longitudinal extension direction of the first closure element 20a.
  • the control channel 22a is formed as a bore in the first closure element 20a.
  • the control channel 22a connects the
  • control channel 22a comprises a first control opening 28a facing the main pressure side 24a and a second control opening 30a facing the control pressure side 26a and fluidly connected to the first control opening 28a.
  • the first control port 28a and the second control port 30a are parallel to each other
  • the first control port 28a and the second control port 30a have one identical diameter.
  • a first fluid valve could also have a plurality of control channels, such as at least two and / or at least three control channels.
  • at least one control channel could be arranged in an edge region of a first closure element.
  • a control channel could also have a deviating from a straight-line course, such as an oblique course and / or a rectangular course.
  • a first control port and a second control port could have different diameters.
  • the first fluid valve 18a comprises at least one control panel 32a.
  • the first fluid valve 18a includes exactly one control panel 32a.
  • the control panel 32a is disposed inside the first shutter member 20a.
  • the control panel 32a is arranged centrally within the first closure element 20a in the longitudinal extension direction of the first closure element 20a.
  • the control panel 32a is formed integrally with the first closure element 20a.
  • the control panel 32a is as a further hole in the first
  • the control panel 32a is disposed in a portion of the control passage 22a.
  • the control panel 32a has, in particular in
  • Extension length which is at most 25% of an axial extension length of the control channel 22a.
  • the control panel 32a has an axial extension length, which is about 10% of an axial extension length of the
  • Control channel 22a amounts.
  • the control panel 32a defines a first opening 34a having a first diameter which is at least 50% smaller than a second diameter of a second opening 36a of the control channel 22a, in particular the first control opening 28a and / or the second control opening 30a.
  • the first diameter of the first opening 34a is smaller by about 80% than the second diameter of the second opening 36a.
  • the control panel 32a is provided to a flow cross-section of the control channel 22a, in particular at least in one
  • a first fluid valve could also have a plurality of control diaphragms, such as at least two and / or at least three control diaphragms.
  • at least one control panel could be arranged immediately before and / or immediately behind a first closure element be.
  • a control panel could in principle be designed as a removable insert disk.
  • a second fluid valve 38a of the fluid valves 18a, 38a has an indirect connection to the fluid conduit 14a.
  • the second fluid valve 38a is designed as a pilot stage.
  • the second fluid valve 38a is designed as a seat valve.
  • the second fluid valve 38a is a throttle valve, in the present case in particular as adjustable during operation
  • the second fluid valve 38a is provided to at least partially control a movement and / or a mobility of the first fluid valve 18a.
  • the second fluid valve 38a is provided to permit a fluid flow of the pressure fluid 12a from the control chamber 72a and in particular via a control line 76a of the vehicle device, which is at least partially separated from the control line 66a, into the pressure fluid storage unit 54a in at least one
  • the second fluid valve 38a comprises a second closure element 40a.
  • the second closure element 40a is at least partially disposed within the valve housing 64a.
  • the second closure element 40a is designed as a valve tappet.
  • the second closure element 40a has an at least substantially I-shaped cross section.
  • the second closure element 40a has another
  • the second closure element 40a furthermore has a closure side 78a facing the control space 72a.
  • the second closure element 40a has a closure side 78a facing the control space 72a.
  • Closure element 40a at least partially made of a magnetic, in particular ferrimagnetic and / or ferromagnetic, material.
  • at least one portion of the second closure element 40a opposite the closure side 78a is made of a magnetic material, such as iron.
  • the second closure element 40a is also movably mounted, in particular in the longitudinal direction of the second closure element 40a and / or the first closure element 20a.
  • the second closure element 40a is translationally and / or linearly movable in the present case.
  • the first closure element 20a and the second closure element 40a are movable in a same direction.
  • the second fluid valve 38a comprises one, in particular as a valve seat
  • second valve stop 80a is formed integrally with the valve housing 64a.
  • the second valve stop 80a is designed as a diaphragm.
  • the second valve stop 80a limits the control chamber 72a at least partially.
  • the second valve stopper 80a is disposed with respect to the control space 72a on an opposite side of the control pressure side 26a of the first shutter member 20a.
  • the second valve stop 80a contacts the second closure element 40a, in particular the closure side 78a, in a closed position of the second
  • Closure element 40a in particular such that in the closed position of the second closure element 40a, a fluid flow of the pressurized fluid 12a is blocked by the control chamber 72a in the control line 76a.
  • the second fluid valve 38a includes a second reset unit 42a.
  • the second return unit 42a is at least partially disposed within the valve housing 64a.
  • the second return unit 42a is arranged on a side of the second closure element 40a facing away from the closure side 78a.
  • Reset unit 42a is provided to the second closure element 40a with a restoring force, in particular in the direction of the closed position of the second
  • the second reset unit 42a comprises at least one second return element 82a.
  • the second return element 82a is formed in the present case as a spring element.
  • the second return element 82a contacts the second closure element 40a, in particular a side opposite the closure side 78a, and in particular exerts the restoring force on the second closure element 40a.
  • a second fluid valve could also be designed as a slide valve.
  • a second could be embodied as a magnetic element and / or as a magnetically active element, such as, for example, as a shape memory element, preferably of an M
  • Restoring unit a plurality of second return elements, such as at least two second return elements and / or at least three second return elements include.
  • FIGS. 2 to 4 show exemplary operating states and / or driving states of the vehicle device. A state shown in Figure 3 corresponds to one
  • Main pressure side 24a and the control pressure side 26a causes a movement of the first closure element 20a against the restoring force of the first return unit 70a, so that the first fluid valve 18a opens and the pressure fluid 12a flows out of the fluid line 14a via the control line 66a into the pressure fluid storage unit 54a (see in particular FIG ).
  • the second fluid valve 38a can also be permanently minimally opened, as a result of which, in particular, optimized control behavior and fast response can be achieved.
  • the vehicle device in the present case further comprises an actuator unit 44a.
  • the actuator 44a has a
  • the actuator unit 44a is arranged in a vicinity of the second fluid valve 38a.
  • the actuator 44a is designed as a magnetic actuator unit.
  • the actuator unit 44a is furthermore separate and / or formed separately from the second reset unit 42a.
  • an actuator unit could also be formed at least partially in one piece with a second reset unit and / or identically with a second reset unit.
  • the actuator unit 44a is provided to change a setting parameter of the valve unit 10a, in the present case in particular of the second fluid valve 38a, in particular during operation and in particular as a function of a driving state.
  • the actuator unit 44a is at least provided to directly advance the setting parameter to change a switching process, which in particular pressure fluctuations can be minimized.
  • the adjusting parameter is a restoring force of the second restoring unit 42a acting on the second closing element 40a.
  • the actuator unit 44a is provided to reduce the restoring force of the second reset unit 42a acting on the second closure element 40a.
  • the actuator unit 44a is provided for providing a restoring force of the second restoring unit 42a in the opposite direction.
  • the actuator unit 44a comprises at least one magnetic element 46a.
  • Magnetic element 46a is formed as a coil system, in the present case in particular with exactly one coil.
  • the magnetic element 46a engages around the second closure element 40a and in particular the partial region of the second closure element 40a consisting of a magnetic material, at least to a large extent.
  • the magnetic element 46a is provided to provide a magnetic field applied to the second shutter member 40a. Accordingly, the magnetic element 46a is provided to provide a, in particular the restoring force of the second reset unit 42a opposite, magnetic actuating force for changing the setting parameter.
  • a setting parameter could also be one on a first
  • an actuator unit for changing a setting parameter could alternatively or additionally have at least one servomotor or the like.
  • a maximum actuating force of the actuator unit 44a and in particular of the magnetic element 46a is also at least 10% less than a maximum
  • a residual pressure acting on the second closure element 40a amounts to approximately 1 bar, whereby advantageously a residual pressure holding force can be provided, in particular by means of the actuator unit 44a, which can not be canceled out.
  • the vehicle device comprises at least one pressure sensor 48a.
  • the pressure sensor 48a is formed in the present case as an oil pressure sensor.
  • the pressure sensor 48a is in the fluid line 14a, in the present case, for example
  • Pressure fluid distribution unit 16a arranged.
  • the pressure sensor 48a is provided to provide a pressure signal correlated with the fluid pressure of the pressure fluid 12a and in particular to transmit it to the actuator unit 44a.
  • the pressure signal is with a Fahrschreib correlated, creating an advantageous automated setting of
  • Stellparameters can be achieved by means of the actuator 44a. In principle, however, it is also conceivable to dispense with a pressure sensor and / or to use sensors deviating from a pressure sensor for determining a fluid pressure. It is also conceivable to arrange a pressure sensor in a region of a fluid line deviating from a pressure fluid distributor unit.
  • the vehicle device includes a
  • the securing unit 50a is formed at least partially in one piece with the actuator unit 44a. In addition, the securing unit 50a is formed at least partially in one piece with the second reset unit 42a.
  • Fuse unit 50a provides a fail-safe function.
  • the securing unit 50a is provided in at least one fault operating state, such as, for example, if the fluid pressure in the fluid line 14a is exceeded and / or undershot, if a component fails and / or fails
  • Vehicle device such as a supply electronics and / or the
  • the second shutter member 40a to move in at least one defined securing position.
  • the securing unit 50a is provided, in a first error operating state, in which a fluid pressure of the pressure fluid 12a in the fluid line 14a exceeds a limit value, the second closure element 40a in at least one open position and in a second error operating state, in particular in case of failure of the actuator unit 44a, for example, due to a defect and / or a power failure, to move the second shutter member 40a in a closed position, which in particular a particularly high reliability can be achieved.
  • Embodiments, in particular of Figures 1 to 4 can be referenced.
  • the letter a is the reference numerals of the embodiment in the figures 1 to 4 adjusted.
  • the letter a is replaced by the letters b and c.
  • FIGS. 5a to 6b show a further exemplary embodiment of the invention.
  • the embodiment of Figures 5a to 6b, the letter b is adjusted.
  • the further exemplary embodiment of FIGS. 5 a to 6 b differs from the previous exemplary embodiment at least substantially by a configuration of a
  • FIGS. 5a to 6b show the valve unit 10b and in particular a first fluid valve 18b and a second fluid valve 38b, in different operating states in a detailed view.
  • An operating state shown in FIGS. 5a and 5b corresponds to an operating state shown in FIG. 3, while an operating state shown in FIGS. 6a and 6b corresponds to an operating state shown in FIG.
  • the valve unit 10b comprises two fluid flows 84b, 86b, in particular a first fluid flow 84b and a second fluid flow 86b.
  • Fluid flow 84b is part of a fluid line 14b.
  • the first fluid flow 84b is fluidly disposed between a filter (not shown) and a pressure fluid distribution unit (not shown).
  • the second fluid flow 86b is connected to a control line 66b for connection to a pressurized fluid storage unit (not shown).
  • the fluid flows 84b, 86b are fluidly separated from one another in at least one operating state by means of a first closure element 20b of the first fluid valve 18b.
  • a control diaphragm 32b of the first fluid valve 18b arranged in particular in a region of a control channel 22b of the first fluid valve 18b, directly adjoins a control pressure side 26b of the first closure element 20b and / or flows directly into one, in particular at least partially delimited by the control pressure side 26b, Control room 72b.
  • the control panel 32b is thus disposed in a vicinity of the control pressure side 26b.
  • FIG. 7 shows a further exemplary embodiment of the invention.
  • Embodiment of Figure 7 is the letter c readjusted. The further
  • Embodiment of Figure 7 differs from the previous one Embodiments at least substantially by an embodiment of a valve unit 10c.
  • a first fluid valve 18 c and a second fluid valve 38 c are arranged perpendicular relative to each other, in particular such that a
  • a longitudinal extent of a first closure element 20c of the first fluid valve 18c is perpendicular to a longitudinal extent of a second closure element 40c of the second fluid valve 38c.
  • first fluid valve 18c is designed as a seat valve.
  • Fluid valve 18c comprises a first closure element 20c designed as a valve tappet and a first valve stop 68c designed as a valve seat, with which the first closure element 20c is connected in a closed position.
  • the first closure element 20c further comprises a main pressure side 24c facing a fluid line (not shown), in particular formed as a fluid pressure surface.
  • the main pressure side 24c has a pointed shape and / or contour.
  • the first closure element 20c has a control pressure side 26c facing away from the fluid line.
  • a control channel 22c arranged within the first closure element 20c has a rectangular course.
  • a first control opening 28c and a second control opening 30c of the control channel 22c are aligned perpendicular to one another and in particular have a different diameter.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne un dispositif de véhicule comprenant au moins une unité valve (10a-c), laquel est destinée à réguler une pression de fluide d'un fluide sous pression (12a) dans au moins un conduit de fluide (14a-b). Selon l'invention, le conduit de fluide (14a-b) se présente sous la forme d'un conduit principal d'un moteur thermique et l'unité valve (10a-c) sous la forme d'une unité valve de régulation de pression pilotée. Par ailleurs, selon l'invention, le dispositif de véhicule comprend au moins une unité d'actionnement (44a) destinée à modifier au moins un paramètre de réglage de l'unité valve (10a-c).
PCT/EP2017/081915 2016-12-20 2017-12-07 Dispositif de véhicule régulant une pression de fluide WO2018114372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016107177.1U DE202016107177U1 (de) 2016-12-20 2016-12-20 Fahrzeugvorrichtung
DE202016107177.1 2016-12-20

Publications (1)

Publication Number Publication Date
WO2018114372A1 true WO2018114372A1 (fr) 2018-06-28

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PCT/EP2017/081915 WO2018114372A1 (fr) 2016-12-20 2017-12-07 Dispositif de véhicule régulant une pression de fluide

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DE (1) DE202016107177U1 (fr)
WO (1) WO2018114372A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420185A2 (fr) * 2002-11-18 2004-05-19 ZF Sachs AG Transmission pour véhicule automobile comprenant une pompe d'alimentation d'un système d'embrayage en fluide sous pression
DE102007003923A1 (de) * 2007-01-26 2008-08-21 Zf Friedrichshafen Ag Verfahren zur Ansteuerung eines Automatgetriebes eines Fahrzeuges
DE102009058005A1 (de) * 2009-12-11 2011-06-16 Hydac System Gmbh Hydrostatischer Antrieb
DE102015207441A1 (de) * 2014-09-11 2016-03-17 Robert Bosch Gmbh Hydrostatisches Antriebssystem
DE102015006321A1 (de) * 2015-05-16 2016-11-17 Hydac System Gmbh Hydrostatischer Antrieb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1420185A2 (fr) * 2002-11-18 2004-05-19 ZF Sachs AG Transmission pour véhicule automobile comprenant une pompe d'alimentation d'un système d'embrayage en fluide sous pression
DE102007003923A1 (de) * 2007-01-26 2008-08-21 Zf Friedrichshafen Ag Verfahren zur Ansteuerung eines Automatgetriebes eines Fahrzeuges
DE102009058005A1 (de) * 2009-12-11 2011-06-16 Hydac System Gmbh Hydrostatischer Antrieb
DE102015207441A1 (de) * 2014-09-11 2016-03-17 Robert Bosch Gmbh Hydrostatisches Antriebssystem
DE102015006321A1 (de) * 2015-05-16 2016-11-17 Hydac System Gmbh Hydrostatischer Antrieb

Also Published As

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