EP3137349A1 - Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique - Google Patents

Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique

Info

Publication number
EP3137349A1
EP3137349A1 EP15722033.6A EP15722033A EP3137349A1 EP 3137349 A1 EP3137349 A1 EP 3137349A1 EP 15722033 A EP15722033 A EP 15722033A EP 3137349 A1 EP3137349 A1 EP 3137349A1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
actuating element
force
clutch
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP15722033.6A
Other languages
German (de)
English (en)
Inventor
Francesco Emanuele FIORINI
Sebastian Honselmann
Manuel BAßLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP3137349A1 publication Critical patent/EP3137349A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/3255—Systems in which the braking action is dependent on brake pedal data
    • B60T8/326—Hydraulic systems

Definitions

  • Device for force simulation on an actuating element of a vehicle preferably a pedal simulator, and device for actuating an electric
  • the invention relates to a device for force simulation on an actuating element of a vehicle, preferably a pedal simulator, which conveys a haptic feedback via a predetermined force-displacement behavior, comprising a piston-cylinder unit, wherein the piston is connected via a piston rod with the actuating element which axially moves the piston within the cylinder and means for actuating an electrical coupling system.
  • a pedal force simulator for a vehicle brake system with electronic signal transmission is known in which a, dependent on the foot force of the driver control of the braking torque, in particular by means of electro-hydraulic or electro-mechanical systems is performed, wherein the pedal force simulator generates a familiar for a driver's brake feel.
  • the pedal force simulator comprises a pneumatically operated piston-cylinder unit whose piston delimits a compression chamber with a controllable valve and counteracts the compression direction by means of at least one first spring element, the piston with a force and is operatively connected via a piston rod with a vehicle brake pedal such that the piston rod during the operation of the vehicle brake pedal undergoes a change in angle relative to the piston-cylinder unit.
  • This angular mobility makes high demands on the construction of the pedal force simulator.
  • DE 10 2010 061 439 A1 discloses a brake system for a motor vehicle, in which a brake pedal, which can be actuated by a driver, is connected to a pedal simulator for generating a path-dependent counteracting or restoring force.
  • the position of the brake pedal is detected by means of a sensor and its sensor signal is supplied to the control unit for evaluation.
  • the control unit In accordance with the position of the brake pedal, the control unit generates control signals for a drive control unit and a brake control device, so that a regenerated braking component generated thereby generates, together with the friction brake portion, a braking torque or a braking action which corresponds to the position of the brake pedal.
  • the pedal simulator is actuated by the control unit in such a way that an opposing force or restoring force acts on the brake pedal, ie, a travel force Depends dependency, which gives the driver a pedal feel as in a braking exclusively with a hydraulic brake system.
  • the invention has for its object to provide a device for power simulation on an actuator of a vehicle, which conveys the driver the same feeling as in a normal hydraulic system and still easy to manufacture.
  • the object is achieved in that the cylinder is filled with a medium, wherein the piston has at least one through opening and / or at least one groove extends on an inner wall of the cylinder, through which the medium upon actuation of the actuating element from a, in Movement direction of the piston in front of the piston lying first working space in a, the piston downstream second working chamber flows.
  • the device for force simulation simulates a force-displacement curve, wherein the force acting on the foot or on the hand of the vehicle user via the actuating element is caused in dependence on the path, which covers the, a resistance element forming piston.
  • the size of the device for force simulation corresponds to the size of a master cylinder in a hydraulic clutch actuation system, so that no further requirements are placed on the space requirement in the motor vehicle, which is why the power simulator can be installed instead of the master cylinder at the same point in the vehicle.
  • two continuous, axially extending openings are formed in the piston, which are arranged symmetrically about a piston axis. This ensures that the force transmitted to the piston by the medium acts uniformly on the piston, allowing a stable, approximately vertical guidance of the piston within the cylinder.
  • a diameter of the opening is formed constant.
  • the diameter of the opening determines the volume of the medium, which is separated by the piston. can pass through from the first working space in the second working space.
  • the volume and thus the force felt on the actuator is adjusted by the number of openings in the piston.
  • the at least one groove extends on the inner wall of the cylinder in a longitudinal direction of the cylinder, through which the medium flows past the piston from the first into the second working space.
  • This at least one groove alone or together with the opening in the piston allows a sensitive adjustment of the force difference, which is perceived by the vehicle user on the actuator.
  • the variation possibilities of the force differences are increased by distributing a plurality of grooves to a circumference of the inner wall of the cylinder at a uniform interval.
  • the grooves have a different length and / or a different axial position, whereby the desired difference in force over the, covered by the actuator path can be set very differentiated.
  • a larger force occurs when only a small amount of liquid passes through the grooves on the piston from the first to the second working space, whereas a small force is set when, due to the position of the piston, which depends on the position of the actuating element, a plurality be released from grooves on the inner wall of the cylinder, which releases a large surface for the exchange of the volume between the first and the second working space.
  • a shape of the grooves additionally varies in terms of cross section and / or width and / or height.
  • the medium is formed as an incompressible liquid.
  • the incompressible medium is a hydraulic fluid which is forced through the piston from the first working space into the second working space. Due to the incompressible property of the liquid creates a counterforce, which can be felt by the vehicle user on the actuating element, preferably an accelerator pedal safely.
  • a development of the invention relates to a device for actuating an electric coupling system, in which an actuating element is connected to a device for force simulation on the actuating element, wherein the position of the actuating element is detected by a sensor unit and electrically transmitted to a control unit, which with a clutch in an active compound is.
  • the device for force simulation is designed according to at least one feature embodied in this patent application. This has the advantage that in an electrical coupling system on the actuating element of the vehicle user is perceived exactly the same force as in a hydraulic or pneumatic coupling system.
  • control unit has a power unit configured as an actuator for controlling the clutch, which is mechanically or hydraulically or pneumatically coupled to the clutch.
  • the device for force simulation can be used on an actuating element of a vehicle in any form of the actuating elements.
  • FIG. 1 shows a basic illustration of an electro-hydraulic clutch actuation system
  • Figure 2 an embodiment of a pedal simulator of the electro-hydraulic
  • the electric Hydraulic Kupplungsbetatigungssystem 1 includes a pedal simulator 2, which is mechanically connected to a clutch pedal 3.
  • the clutch pedal 3 actuates via a piston rod 4 a, in the pedal simulator 2 axially movably mounted piston 5.
  • the movement of the piston 5 is detected by a displacement sensor unit 6, which is connected to the pedal simulator 2 and preferably integrated in this.
  • Via an electrical line 7, the distance sensor unit 6 is connected to a control and power unit 8.
  • the control and power unit 8 comprises an actuator, which controls the clutch 10 via a further line 9.
  • the line 9 is formed in the present case as a hydraulic line.
  • the arrangement of the coupling 10 may alternatively but also be pneumatic or mechanical.
  • FIG. 2 shows an embodiment of the pedal simulator 2 as used in the clutch actuation system 1 according to FIG.
  • the clutch pedal 3 is fastened to the piston rod 4 via a connection 11.
  • the piston 5 is moved axially via the piston rod 4 as a function of the position of the clutch pedal 3.
  • the cylinder 12 has at one end a guide element 13, for example a seal or a wall opening, in which the piston rod 4 is mounted axially.
  • the piston 5 is connected thereto and guided circumferentially on an inner wall 14 of the cylinder 12.
  • On the circumference of the inner wall 14 of the cylinder 12 extend along the longitudinal direction of the cylinder 12 grooves 15, 16, which are distributed axially with different lengths. Both the cross section and the height and width of the grooves are different. Due to this different geometry, the cylinder interior has different flow cross sections.
  • the piston 5 has symmetrically to the piston rod 4 each have an opening 17, 18, which are formed continuously and are aligned axially to a piston axis, not shown. In the direction of movement of the piston 5, a first working chamber 19 and the piston 5 is arranged downstream of a second working space 20 is formed. To the piston rod 4 and the cylinder 12, a return spring 21 is partially arranged.
  • the described pedal simulator 2 works as follows: When the clutch pedal 3 is actuated, the pedal movement is converted via the connection 11 into a corresponding advancing movement of the piston rod 4.
  • the return spring 21 is compressed and tensioned, whereby a restoring reaction force is formed. Except- the attached to the piston rod 4 piston 5 is moved relative to the stationary mounted cylinder 12 within this forward. As a result, a more or less large volume of the hydraulic fluid is displaced from the first working space 19 into the second working space 20 through the openings 17, 18 of the piston 5 forming a resistance element.
  • the hydraulic fluid additionally flows through the at least one groove 15, 16 past the piston 5 from the first working space 19
  • the desired damping behavior is determined by the geometric shape of the grooves 15, 16, such as cross-section, width and height, which are uniformly distributed on the inner circumference of the cylinder 12 ,
  • the described pedal simulator 2 is intended for a non-hydraulic actuation system, in particular a purely electric vehicle clutch system. Alternatively, however, it can also be used for any other actuation systems, such as brake systems, for example, which may also have any other actuation element instead of a pedal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)

Abstract

L'invention concerne un dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence un simulateur de pédale qui fournit un retour haptique par l'intermédiaire d'une caractéristique force-déplacement prédéfinie, lequel comprend un ensemble cylindre/piston (5, 12), le piston (5) étant relié par l'intermédiaire d'une tige de piston (4) à l'élément d'actionnement (3) qui déplace axialement le piston à l'intérieur du cylindre. L'invention vise à fournir un dispositif faisant ressentir au conducteur du véhicule de manière haptique la même force qu'avec un système d'actionnement hydraulique. A cet effet, le cylindre est rempli d'un fluide, le piston étant muni d'au moins un orifice débouchant (17, 18) et/ou au moins une rainure (15, 16) s'étendant au niveau d'une paroi intérieure du cylindre, rainure dans laquelle le fluide s'écoule d'une première chambre de travail (19) située devant le piston dans le sens de déplacement de celui-ci à une deuxième chambre de travail (20) derrière le piston, lorsque l'élément d'actionnement est actionné.
EP15722033.6A 2014-04-29 2015-03-31 Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique Ceased EP3137349A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014207982 2014-04-29
PCT/DE2015/200215 WO2015165450A1 (fr) 2014-04-29 2015-03-31 Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique

Publications (1)

Publication Number Publication Date
EP3137349A1 true EP3137349A1 (fr) 2017-03-08

Family

ID=53175218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15722033.6A Ceased EP3137349A1 (fr) 2014-04-29 2015-03-31 Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique

Country Status (4)

Country Link
EP (1) EP3137349A1 (fr)
JP (1) JP2017515068A (fr)
DE (1) DE112015002075A5 (fr)
WO (1) WO2015165450A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10359802B2 (en) 2016-08-22 2019-07-23 Cts Corporation Variable force electronic vehicle clutch pedal
DE102017103209A1 (de) * 2017-02-16 2018-08-16 Schaeffler Technologies AG & Co. KG Pedalkraftsimulationsvorrichtung mit integriertem Sensor sowie Betätigungssystem
FR3068940B1 (fr) * 2017-07-13 2019-08-23 Robert Bosch Gmbh Systeme de freinage electronique decouple avec un dispositif de transmission de mouvement a compensation des effets radiaux
DE102021119439A1 (de) 2021-07-27 2023-02-02 Zf Active Safety Gmbh Pneumatisches Bremspedalmodul

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921027U1 (de) * 1999-11-30 2001-06-28 Kober Ag Simulator für ein nichthydraulisches Betätigungssystem
DE10016879A1 (de) * 2000-04-05 2001-10-18 Bayerische Motoren Werke Ag Betätigungseinrichtung für eine Kraftfahrzeug-Bremsanlage vom Typ "brake by wire"
JP5243315B2 (ja) * 2009-03-16 2013-07-24 本田技研工業株式会社 車両用電子クラッチ制御装置
DE102010034671A1 (de) * 2010-08-18 2012-02-23 Volkswagen Ag Fahrzeugbremsanlage mit Pedalsimulator
DE102010061439A1 (de) 2010-12-21 2012-06-21 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Bremssystem für ein Kraftfahrzeug
DE102011016239A1 (de) 2011-04-06 2012-10-11 Volkswagen Ag Pedalkraftsimulator für eine Fahrzeugbremsanlage
JP5817653B2 (ja) * 2012-06-14 2015-11-18 トヨタ自動車株式会社 ブレーキストロークシミュレータ
JP5639142B2 (ja) * 2012-11-22 2014-12-10 ヤマハ発動機株式会社 変速装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015165450A1 *

Also Published As

Publication number Publication date
DE112015002075A5 (de) 2017-01-26
WO2015165450A1 (fr) 2015-11-05
JP2017515068A (ja) 2017-06-08

Similar Documents

Publication Publication Date Title
DE102019004525B4 (de) Pedaleinheit für ein Kraftfahrzeug
EP2896539B1 (fr) Système destiné à simuler la force de pédalage, en particulier pour un système d'actionnement d'embrayage
EP3213168B2 (fr) Dispositif permettant de simuler l'application d'une force sur un élément d'actionnement d'un véhicule, sous la forme d'un simulateur de pédale
EP3463998B1 (fr) Dispositif de simulation de force de pédale
EP1233891B1 (fr) Simulateur pour systeme d'actionnement non hydraulique
DE19750977B4 (de) Bremsanlage
DE102015220669A1 (de) Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges und eine Einrichtung zur Betätigung eines elektrischen Kupplungssystems, vorzugsweise eines Fahrzeuges
EP3137351B1 (fr) Dispositif de simulation de force pour un élément de service, de préférence un simulateur de pedal, et arrangement pour activer un système d'embrayage électrique
EP3137350B1 (fr) Dispositif de simulation de force pour un élément de service, de préférence un simulateur de pedal, et arrangement pour activer un système d'embrayage électrique
EP3137349A1 (fr) Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique
DE10039670A1 (de) Pedalsimulationsvorrichtung
DE102013007574A1 (de) Betätigungseinrichtung zur Anordnung zwischen einem Bremspedal und einem Hauptbremszylinder eines Kraftfahrzeugs
EP3137784B1 (fr) Dispositif destiné à simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale, et dispositif permettant d'actionner un système d'embrayage électrique
EP3186104B1 (fr) Pédale d'accélérateur active à trajet libre
WO2015165449A1 (fr) Dispositif permettant de simuler l'application d'une force sur un élément d'actionnement d'un véhicule, de préférence simulateur de pédale
EP3337698A2 (fr) Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale
DE102016203623A1 (de) Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges, vorzugsweise ein Pedalkraftsimulator
DE102017102516A1 (de) Hystereseelement zur Erzeugung einer definierten Reibkraft und Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges
DE102012202314A1 (de) Kraft-Weg-Simulation für Pedal
DE19836691A1 (de) Pedal für ein Kraftfahrzeug
DE10360784B4 (de) Vorrichtung zum Ausrücken und Einrücken der Kupplung eines Kraftfahrzeuges
DE102015214974A1 (de) Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges
DE102014012604A1 (de) Vorrichtung zur Betätigung der Betriebsbremse eines Kraftfahrzeugs
DE102022200191B4 (de) Bremspedalsystem, Brake-by-Wire-Bremssystem und Kraftfahrzeug
DE102018211524A1 (de) Einrichtung zur Variation des Pedalgefühls in einem Bremsregelsystem eines Kraftfahrzeugs

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20161129

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200511

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20210308

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523