WO2011047749A1 - Soupape de démarrage à froid - Google Patents

Soupape de démarrage à froid Download PDF

Info

Publication number
WO2011047749A1
WO2011047749A1 PCT/EP2010/005461 EP2010005461W WO2011047749A1 WO 2011047749 A1 WO2011047749 A1 WO 2011047749A1 EP 2010005461 W EP2010005461 W EP 2010005461W WO 2011047749 A1 WO2011047749 A1 WO 2011047749A1
Authority
WO
WIPO (PCT)
Prior art keywords
cold start
control piston
start valve
control
magnetic plunger
Prior art date
Application number
PCT/EP2010/005461
Other languages
German (de)
English (en)
Inventor
Alexander Steiner
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP10754425A priority Critical patent/EP2490924A1/fr
Publication of WO2011047749A1 publication Critical patent/WO2011047749A1/fr

Links

Classifications

    • 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
    • F16H61/0021—Generation or control of line pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101—Infinitely variable gearings
    • B60W10/103—Infinitely variable gearings of fluid type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
    • B60W30/194—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine related to low temperature conditions, e.g. high viscosity of hydraulic fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • 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
    • F16H61/4043—Control of a bypass valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • F16H61/4139—Replenishing or scavenging pumps, e.g. auxiliary charge pumps
    • 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
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/68—Inputs being a function of gearing status
    • F16H59/72—Inputs being a function of gearing status dependent on oil characteristics, e.g. temperature, viscosity

Definitions

  • the present invention relates to a cold start valve according to the preamble of patent claim 1.
  • Vehicles with internal combustion engines as the main drive device and with a number of hydraulic consumers usually have a feed or charge pump, which is connected via a mechanical transmission with the internal combustion engine and is thus already driven during the starting process of the internal combustion engine.
  • the feed or charge pump is usually associated with a cold start valve, which temporarily the input and
  • a cold start valve of this type is known. This is a mechanical valve which, during the starting process of an internal combustion engine, relaxes the charge pressure of a charge pump connected to the internal combustion engine into the hydraulic tank or sump.
  • the cold start valve is temperature sensitive, so that at lower temperatures the charge pump oil is relieved for a longer period of time than at higher temperatures.
  • the protection valve consists of a fluid-controlled
  • Pressure relief valve which in a bypass line for a resource filter is interposed.
  • One control side of the pressure relief valve is connected to an upstream side of the filter and another, additionally spring biased control side of the pressure relief valve is connected to a downstream control side of the filter.
  • the pressure relief valve is set so that it opens when reaching a certain pressure gradient (pressure difference set to 6 bar) between the upstream and downstream side of the filter and relaxes resources in the resource tank.
  • Torque load is applied to the starter of the brake motor.
  • the object of the present invention is to develop with little design effort known from the prior art protection valve so that adequate protection of the filter and the entire equipment system against high pressures and at the same time a cold start with low torque load for the starter internal combustion engine
  • Patent claim 1 solved. Further advantageous embodiments of the invention are the subject of the dependent claims.
  • the core of the invention is therefore in the formation of a
  • Cold start valve with a control piston, by means of which an input and output port of the cold start valve are fluid-connectable, wherein the one control side of the control piston is connected to the output port of the cold start valve and the other
  • Control side of the control piston with a control pressure connection of the cold start valve connected and additionally acted upon by a biasing spring.
  • an additional forced switching mechanism is provided for (the
  • operating-related control function provided overlapping or supporting displacement of the control piston for connecting the input and output terminals.
  • FIG. 1 shows the circuit diagram section of an equipment installation of a vehicle driven by an internal combustion engine, relating to the feed pump with a downstream system filter,
  • FIG. 2 shows a cross section of a cold start valve according to a first preferred embodiment of the invention
  • FIG. 3 shows the cross section of a cold start valve modified to FIG. 2
  • FIG. 4 shows the cross section of a cold start valve according to a second preferred embodiment of the invention.
  • An input terminal of the feed pump 1 leads to a
  • Supply line 6 connected to the input terminal of a system filter 8. Whose Output terminal is coupled via a main feed line 10 with the equipment not shown.
  • a bypass line 12 branches off from the supply line 6 immediately upstream of the system filter 8 and leads back to the operating medium store 4 or to the inlet connection of the feed pump 1.
  • a cold start valve 14 is interposed in the form of a resource-operated pressure relief valve.
  • the pressure limiting valve 14 has a first control side x, which is biased by a spring and which is connected to the output terminal of the system filter 8, and a second control side y, which is connected to the bypass line 12 upstream of the pressure relief valve 14.
  • the biasing spring is set to a value such that a pressure gradient or pressure difference which is established on the two sides of the system filter 8 is not predetermined
  • Pressure relief valve 14 is opened and excess operating fluid pressure upstream of the system filter 8 relaxed in the resource memory 4.
  • the spring-biased control side is x
  • Pressure limiting valve 14 is provided with an additional forced switching mechanism 16, via which the pressure relief valve 14 is independent of the height of the pressure gradient switchable into the open position and / or a selectable / adjustable additional force on the corresponding control side x of the pressure relief valve 14 which supports the spring force and thus reduces the maximum allowable value for the pressure gradient.
  • the positive switching mechanism 16 may be formed in various shapes, such as electric, mechanical, hydraulic, etc., as described in more detail below.
  • a Elektromagnetmechanismgs 18 is provided which exerts a magnetic force on the control piston 20 of the pressure relief valve 14 in the energized state, which moves the control piston 20 in the direction of its open position.
  • the magnetic force can be so high that this pressure relief valve 14th opens and resources is relaxed or the magnetic force is set so high that the pressure relief valve 14 does not open in normal operation, but the necessary for opening the pressure relief valve 14
  • Pressure drop at the system filter 8 is reduced to a lower value.
  • magnetic piston piece or magnetic plunger 22 is attached axially, which extends to an electromagnet 24 which is additive to the housing of the
  • Pressure relief valve 14 is mounted.
  • the electromagnet 24 may be arranged axially to the magnetic plunger 22 and when energized, a tensile force in
  • Solenoid 24 open regardless of the prevailing pressure gradient on the system filter 8.
  • control or valve piston 20 is usually with a
  • Valve piston is transferable. 4, a second embodiment of the invention is shown. In this case, instead of the solenoid mechanism 18 according to FIGS. 2 and 3, a manually operable lever or slide 28 to the valve piston 20 of the
  • Valve housing in a sealing manner to the outside and is formed or coupled at its free projecting end with a handle.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne la configuration d'une soupape de démarrage à froid comportant un piston de commande au moyen duquel un raccordement d'entrée et un raccordement de sortie de la soupape de démarrage à froid peuvent être mis en communication fluidique, un côté commande du piston de commande étant relié au raccordement de sortie de la soupape de démarrage à froid, et l'autre côté commande du piston de commande étant relié à un raccordement de pression de commande de la soupape de démarrage à froid et étant en outre soumis à la force d'un ressort de précontrainte. Selon l'invention, un mécanisme de commutation forcée supplémentaire assure le déplacement du piston de commande, de manière additionnelle ou en soutien (à la fonction de commande relative au matériel) pour relier le raccordement d'entrée et le raccordement de sortie.
PCT/EP2010/005461 2009-10-20 2010-09-06 Soupape de démarrage à froid WO2011047749A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10754425A EP2490924A1 (fr) 2009-10-20 2010-09-06 Soupape de démarrage à froid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910049995 DE102009049995A1 (de) 2009-10-20 2009-10-20 Kaltstartventil
DE102009049995.4 2009-10-20

Publications (1)

Publication Number Publication Date
WO2011047749A1 true WO2011047749A1 (fr) 2011-04-28

Family

ID=43066713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/005461 WO2011047749A1 (fr) 2009-10-20 2010-09-06 Soupape de démarrage à froid

Country Status (3)

Country Link
EP (1) EP2490924A1 (fr)
DE (1) DE102009049995A1 (fr)
WO (1) WO2011047749A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016201696A1 (de) 2016-02-04 2017-08-10 Voith Patent Gmbh Hydraulikventil
CN106762582B (zh) * 2016-12-15 2018-06-29 中船重工重庆液压机电有限公司 一种低温柱塞泵及其启动控制系统
FR3075279B1 (fr) * 2017-12-19 2021-12-31 Poclain Hydraulics Ind Circuit d'aspiration de pompe
EP4077978A1 (fr) 2019-12-20 2022-10-26 Clark Equipment Company Systèmes et procédés de dérivation de circuits de charge hydraulique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418266A (en) * 1973-03-05 1975-12-17 Caterpillar Tractor Co Pump unloading circuit
US4017221A (en) * 1976-02-27 1977-04-12 Caterpillar Tractor Co. Combined unloading and relief valve for pump unloading circuit
JPS55119528A (en) * 1979-03-02 1980-09-13 Kyokuto Kaihatsu Kogyo Co Ltd Drum driving device in concrete mixer truck
EP1172588A2 (fr) * 2000-07-12 2002-01-16 Deere & Company Transmission hydrostatique avec vanne de démarrage à froid
EP1666725A2 (fr) * 2004-12-03 2006-06-07 Kässbohrer Geländefahrzeug AG Système de propulsion pour véhicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1418266A (en) * 1973-03-05 1975-12-17 Caterpillar Tractor Co Pump unloading circuit
US4017221A (en) * 1976-02-27 1977-04-12 Caterpillar Tractor Co. Combined unloading and relief valve for pump unloading circuit
JPS55119528A (en) * 1979-03-02 1980-09-13 Kyokuto Kaihatsu Kogyo Co Ltd Drum driving device in concrete mixer truck
EP1172588A2 (fr) * 2000-07-12 2002-01-16 Deere & Company Transmission hydrostatique avec vanne de démarrage à froid
EP1172588B1 (fr) 2000-07-12 2006-06-21 Deere & Company Transmission hydrostatique avec vanne de démarrage à froid
EP1666725A2 (fr) * 2004-12-03 2006-06-07 Kässbohrer Geländefahrzeug AG Système de propulsion pour véhicule

Also Published As

Publication number Publication date
DE102009049995A1 (de) 2011-04-21
EP2490924A1 (fr) 2012-08-29

Similar Documents

Publication Publication Date Title
EP2705279B1 (fr) Circuit hydraulique et son procédé de fonctionnement
DE102015214037B4 (de) Parksperre
EP2545305B1 (fr) Système hydraulique pour actionner un élément de changement des rapports à complémentarité de forme d'un mécanisme de transmission
WO2012152395A1 (fr) Boîte de vitesses à embrayage, en particulier boîte de vitesses à double embrayage, dotée d'un accumulateur de pression
DE2945315A1 (de) Hydraulische regeleinrichtung fuer lastschaltgetriebe
EP2250387B1 (fr) Dispositif de commande hydraulique destiné à commander un flux volumique variable de fluide
WO2011047749A1 (fr) Soupape de démarrage à froid
EP1903238B1 (fr) Système hydraulique
WO2017125108A1 (fr) Système de changement de vitesse hydraulique conçu pour un véhicule automobile
EP3417190B1 (fr) Système de filtre à huile sous pression pour une transmission hydraulique
EP2647883B1 (fr) Dispositif de commande hydraulique
DE102009038377A1 (de) Hydraulikanordnung
EP3012463B1 (fr) Agregat hydraulique
EP1004786B1 (fr) Commande de démarrage pour la commande d'une unité de piston-cylindre
DE102020004389A1 (de) Hydrauliksystem für ein Doppelkupplungsgetriebe
EP3115651B1 (fr) Transmission hydrostatique, dispositif d'entraînement avec la transmission et procédé de commande de la transmission
EP3436705B1 (fr) Dispositif de commande
DE102019213356A1 (de) Antriebseinrichtung für ein Kraftfahrzeug
DE102014117625A1 (de) Schaltgetriebe eines Kraftfahrzeugs
EP2926880B1 (fr) Unité de filtre pour un système hydraulique
DE102020004398A1 (de) Hydrauliksystem für ein Doppelkupplungsgetriebe
DE102020117018B4 (de) Parksperrenbetätigungssystem mit formschlüssig gehaltenem Verriegelungselement; sowie Verfahren zum Ansteuern des Parksperrenbetätigungssystems
DE112011105931B4 (de) Hydraulisches Steuerungssystem zum hydraulischen Steuern und Betätigen einer Vorrichtung
DE4420164A1 (de) Kombiniertes Druck- und Schaltventil
WO2021213580A1 (fr) Procédé et système de fluide pour l'actionnement d'un composant de transmission et d'un dispositif de déconnexion

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10754425

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010754425

Country of ref document: EP