EP3337698A2 - Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale - Google Patents

Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale

Info

Publication number
EP3337698A2
EP3337698A2 EP16791305.2A EP16791305A EP3337698A2 EP 3337698 A2 EP3337698 A2 EP 3337698A2 EP 16791305 A EP16791305 A EP 16791305A EP 3337698 A2 EP3337698 A2 EP 3337698A2
Authority
EP
European Patent Office
Prior art keywords
piston
spring element
housing
rolling
rolling bodies
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.)
Withdrawn
Application number
EP16791305.2A
Other languages
German (de)
English (en)
Inventor
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 EP3337698A2 publication Critical patent/EP3337698A2/fr
Withdrawn legal-status Critical Current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
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot

Definitions

  • the invention relates to a device for force simulation on an actuating element of a vehicle, preferably a pedal force simulator comprising a housing in which a piston is mounted axially movable, wherein the piston is connected via a piston rod to the actuating element and the piston in a in the housing or temporarily outside the housing arranged spring element engages.
  • a pedal force simulator comprising a housing in which a piston is mounted axially movable, wherein the piston is connected via a piston rod to the actuating element and the piston in a in the housing or temporarily outside the housing arranged spring element engages.
  • aggregates such as couplings
  • a pedal force simulator for a vehicle brake system with electronic signal transmission is known in which a dependent of the foot force of the driver control of the braking torque, in particular by means of electro-hydraulic or electro-mechanical systems, is carried out, 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.
  • a device for force simulation on an actuating element of a vehicle which consists of a housing in which an axially displaceably mounted piston is moved.
  • the piston is moved by a piston rod which is connected to the actuating element.
  • the piston is actuated against the restoring force of a return spring, wherein the return spring is supported on the housing and on the piston.
  • the piston comprises a link component, with an over its longitudinal extent changing outer contour which engages upon actuation by the actuating element in a - especially forked - spring element, on whose arms depending a rolling body is mounted, which abut against opposite areas of the outer contour of the link component.
  • the link component in this case has a different thickness cross-section.
  • the rolling elements on the spring element must be made to roll over different coefficients of friction of the two adjacent components. Here it may happen that the rolling elements do not roll over the entire stroke, but slide in sections. This is undesirable and leads to uncontrollable wear. For this reason, it is necessary that additional lubrication of the rolling elements is provided in order to ensure a functional work of the rolling elements.
  • the invention has for its object to provide a device for force simulation on an actuating element of a vehicle, in which a friction reduction is ensured without additional lubrication.
  • an inner contour of the spring element has a changing cross-section and are attached to the piston two in the movement supporting rolling body for rolling on the inner contour of the fork-shaped spring element.
  • the piston comprises a link component, the outer contour of which has a changing cross-section and two spring bodies which are supported during the movement are arranged, in particular fastened, to roll on the outer contour of the link component.
  • the inner contour of the spring element approximately centrally has the smallest cross section.
  • the cross section of the fork-shaped spring element continuously decreases from an end facing the piston towards the center and continuously from the center to the side opposite the piston.
  • the spring element is fixedly positioned in the housing. This ensures that the spring element does not move during the movement of the piston from its predetermined position and thus a reliable replica of the unit characteristic is ensured.
  • the piston may also be fastened to the housing and the spring element connected to the actuating element, wherein the spring element is pressed against the piston during actuation by the accelerator pedal.
  • the spring element protrudes through an opening on the housing during actuation.
  • the rolling bodies are designed in opposite directions. This prevents them from blocking themselves.
  • each rolling body in the axial direction of the spring element facing two arms, each rolling body is disposed on a shaft which is mounted on both sides of each arm of the piston, wherein the rolling bodies between the two arms of the piston are arranged. Because of this configuration let the rolling elements move freely. There is only a frictional contact with the fork-shaped spring element.
  • a particularly cost-effective embodiment is achieved when the shaft and the rolling body or bodies are integrally formed.
  • the rolling bodies are designed as needle sleeves, rollers or other types of bearings.
  • the arms of the piston carrying the rolling bodies extend approximately parallel to one another axially.
  • Fig. 1 is a schematic diagram of the device according to the invention in
  • Fig. 2 is a schematic representation of the device according to the invention in actuated
  • FIG. 3 is a perspective view of a first embodiment of the device according to the invention
  • Fig. 4 shows a second embodiment of the device according to the invention in an unactuated function
  • Fig. 5 shows the second embodiment of the device according to the invention in an actuated function
  • Fig. 6 shows another embodiment of the device according to the invention in the unactuated function
  • Fig. 7 shows the further embodiment of the device according to the invention in an actuated function
  • Fig. 8 is a perspective view of the further embodiment of the device according to the invention.
  • Fig. 1 is a Phnzipdarwolf of the device according to the invention is shown, which is used in a release system in a motor vehicle, in which the clutch is actuated by means of an actuator.
  • the control of the actuator is done by the clutch pedal, which gives the driver a realistic representation of the clutch behavior during actuation.
  • the inventive device 1 is located in a housing 2, which may be, for example, a master cylinder of the clutch actuation system.
  • a piston 3 is mounted axially movable, which is indirectly or directly connected via a piston rod 4 with an accelerator pedal 6, which is actuated by the driver.
  • an accelerator pedal 6 which is actuated by the driver.
  • Between the piston 3 and the housing 2 is supported within the housing 2 from a return spring 5, against which the piston 3 is actuated by means of the accelerator pedal.
  • the piston 3 is located in Fig. 1 in a non-actuated starting position, in which two, on the piston 3 superposed rolling elements 7, 8, which mutually support, engage in a fork-shaped spring element 9.
  • the fork-shaped spring element 9 is connected with its closed, the housing 2 facing narrow side fixed to the housing 2 and has over its axial extension an inner contour with changing cross section.
  • the cross-section of the spring element 9 decreases starting from the, the piston 3 facing end side to the middle approximately from and then widened again in the direction of the piston 3 facing away from the narrow side.
  • Fig. 2 is a schematic diagram of FIG. 1 is repeated, wherein the piston 3 at the inner stop of the inner contour of the spring element 9, ie in the actuated state, which corresponds to a lower piston position.
  • Fig. 3 is a perspective view of the device 1 according to the invention is shown, in which the piston 3 has two mutually parallel, rigid arms 10, 1 1. Between the two arms 10, 1 1, a roller body 7, 8 is mounted, wherein the two rolling bodies 7, 8 are arranged one above the other. Each rolling body 7, 8 is located on a shaft 12, 13, the ends of which each engage in a rigid arm 10, 1 1 of the piston 3.
  • the rolling elements 7, 8 and the shaft 10, 1 1 formed as a one-piece component.
  • Fig. 4 and 5 another embodiment of the device 1 according to the invention is shown, where the rolling bodies are formed as needle sleeves 14, 15.
  • the use of the needle sleeves 14, 15 ensures a further reduction in friction during the actuation of the device 1.
  • Figures 6, 7 and 8 show the invention in a further embodiment.
  • FIG. 6 7 and 8 are 9.1 arms themselves as spring element 9, preferably as a leaf spring, formed, can be dispensed with an additional spring element.
  • the rolling elements are designed as needle sleeves or other types of bearings with rollers, sleeves or balls 14.
  • the link component 3.1 is pushed into the spring element 9, wherein the spring element 9 is pressed apart by the increasing cross-section of the link component 3.1. This creates a counterforce due to the variable cross-section of the link component 3.1, which presses in the axial direction against the direction of movement. If the largest cross section of the link component 3.1 exceeded, a reaction force acts in the direction of actuation. As can be seen from FIG.
  • the needle sleeves 14 are inserted into an axial recess 16 of the arms 9.1 of the spring element 9 and are held there by two small bolts 12.
  • the rigidity and the resilient length of the spring element 9 remain constant.
  • the outer contour of the link component 3.1 has approximately the largest cross section in the middle.
  • the cross section of the spring element 9 remains substantially constant and is preferably fixedly positioned in the housing.
  • the rolling bodies 14 carrying arms 9.1 of the spring element 9 extend axially approximately parallel to each other.
  • the proposed solution leads to a reduction of friction in the absence of lubrication of the rolling elements 7, 8. This simplifies the structure of the device 1 according to the invention.
  • the proposed device 1 can also be used as an independent pedal force simulator, which is preferably used in clutch-by-wire applications or vehicle simulators of any kind, in which the actuator in the form of accelerator pedal 6 no longer directly with the connected to actuated unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Control Devices (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

L'invention concerne un dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence un simulateur d'effort sur la pédale, qui comprend un boîtier (2) dans lequel un piston (3) est monté de manière axialement mobile, le piston (3) étant relié à l'élément d'actionnement (6) par l'intermédiaire d'une tige de piston (4) et ledit piston (3) s'insérant dans un élément élastique (9) se plaçant en particulier axialement dans le boîtier (2) ou par moments à l'extérieur du boîtier. Le but de l'invention est d'obtenir un dispositif pouvant se passer d'une lubrification supplémentaire. A cet effet, un contour intérieur de l'élément élastique (9) en forme de fourche présente une section transversale qui varie, et deux corps roulants (7, 8), se trouvant en appui lors du mouvement et destinés à rouler sur le contour intérieur de l'élément élastique (9) en forme de fourche, sont fixés au piston (3).
EP16791305.2A 2015-08-21 2016-08-19 Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale Withdrawn EP3337698A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215961.2A DE102015215961A1 (de) 2015-08-21 2015-08-21 Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges, vorzugsweise ein Pedalfkraftsimulator
PCT/DE2016/200389 WO2017032371A2 (fr) 2015-08-21 2016-08-19 Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale

Publications (1)

Publication Number Publication Date
EP3337698A2 true EP3337698A2 (fr) 2018-06-27

Family

ID=57240769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16791305.2A Withdrawn EP3337698A2 (fr) 2015-08-21 2016-08-19 Dispositif de simulation d'effort sur un élément d'actionnement d'un véhicule, de préférence simulateur d'effort sur la pédale

Country Status (4)

Country Link
EP (1) EP3337698A2 (fr)
CN (1) CN107921933B (fr)
DE (2) DE102015215961A1 (fr)
WO (1) WO2017032371A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015216146A1 (de) 2015-08-24 2017-03-02 Schaeffler Technologies AG & Co. KG Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeugs, insbesondere Pedalkraftsimulator
DE102018117090A1 (de) 2017-08-09 2019-02-14 Schaeffler Technologies AG & Co. KG Pedalkraftsimulator und Montageverfahren eines Pedalkraftsimulators
JP2019203555A (ja) * 2018-05-23 2019-11-28 トヨタ自動車株式会社 クラッチの断接装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2774930B1 (fr) 1998-02-13 2000-05-19 Pechiney Rhenalu Bandes en alliage d'aluminium a grande homogeneite de surface et procede de fabrication de ces bandes
DE102005062854A1 (de) 2005-12-23 2007-07-05 Salzgitter Flachstahl Gmbh Verfahren und Einrichtung zum Erzeugen von metallischen Warmbändern insbesondere aus Leichtbaustahl
DE102008061569A1 (de) * 2007-12-19 2009-06-25 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Kupplungsbetätigungssystem
DE102009036349A1 (de) * 2008-08-25 2010-03-04 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Pedal für ein Betätigungssystem
KR101482275B1 (ko) * 2008-10-16 2015-01-13 현대모비스 주식회사 히스테리시스 특성 구현 타입 전자 페달 장치
DE102009012984B4 (de) 2009-03-12 2013-05-02 Salzgitter Flachstahl Gmbh Gießdüse für eine horizontale Bandgießanlage
DE102011016239A1 (de) 2011-04-06 2012-10-11 Volkswagen Ag Pedalkraftsimulator für eine Fahrzeugbremsanlage
EP2896539B1 (fr) * 2013-12-17 2019-10-09 Schaeffler Technologies AG & Co. KG Système destiné à simuler la force de pédalage, en particulier pour un système d'actionnement d'embrayage
DE102015204702A1 (de) 2015-03-16 2016-09-22 Schaeffler Technologies AG & Co. KG Vorrichtung zur Kraftsimulation an einem Betätigungselement eines Fahrzeuges, insbesondere in der Art eines Pedalkraftsimulators

Also Published As

Publication number Publication date
DE112016003799A5 (de) 2018-05-09
CN107921933B (zh) 2020-07-14
WO2017032371A2 (fr) 2017-03-02
CN107921933A (zh) 2018-04-17
WO2017032371A3 (fr) 2017-04-20
DE102015215961A1 (de) 2017-02-23

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