WO2018046394A1 - Pédale, en particulier pédale d'accélérateur - Google Patents

Pédale, en particulier pédale d'accélérateur Download PDF

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Publication number
WO2018046394A1
WO2018046394A1 PCT/EP2017/071942 EP2017071942W WO2018046394A1 WO 2018046394 A1 WO2018046394 A1 WO 2018046394A1 EP 2017071942 W EP2017071942 W EP 2017071942W WO 2018046394 A1 WO2018046394 A1 WO 2018046394A1
Authority
WO
WIPO (PCT)
Prior art keywords
pedal
spring
pedal plate
leaf spring
friction element
Prior art date
Application number
PCT/EP2017/071942
Other languages
German (de)
English (en)
Inventor
Claus Viethen
Original Assignee
HELLA GmbH & Co. KGaA
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 HELLA GmbH & Co. KGaA filed Critical HELLA GmbH & Co. KGaA
Publication of WO2018046394A1 publication Critical patent/WO2018046394A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
    • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
    • 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
    • G05G1/38—Controlling members actuated by foot comprising means to continuously detect pedal position
    • 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
    • G05G1/44—Controlling members actuated by foot pivoting

Definitions

  • the present invention relates to a pedal in the preamble of
  • DE 197 41 366 C1 discloses a trained as a brake pedal pedal, having a pivot bearing body and a rotatably mounted on the body about a rotation axis pedal plate of the brake pedal, wherein the pedal plate between a rest position and a maximum operating position is movable back and forth.
  • the known brake pedal formed as a semicircular curved leaf spring return spring and as
  • the strain gauge is used here to determine the force exerted on the brake pedal, while a separate rotation angle sensor detects the angle of rotation of the brake pedal.
  • the present invention has for its object to provide a pedal, in particular accelerator pedal, in which the deflection angle of the pedal plate from its rest position can be detected in an alternative manner.
  • a significant advantage of the pedal according to the invention is, in particular, that the deflection angle of the pedal plate from its rest position can be determined in a structurally and circuitally simple manner.
  • the arrangement of the deformation sensor on the return spring allows due to the relatively large deflections of the return spring sufficiently large and thus easy to evaluate output signals of the deformation sensor. It is quite conceivable that the deformation sensor can also be arranged within the return spring.
  • Another advantage of the invention is that it allows components and space and weight can be saved.
  • a particularly advantageous embodiment of the teaching according to the invention provides that the deformation sensor is designed as a strain gauge.
  • Strain gauges are commercially available in a variety of embodiments, easy to apply and robust, so that strain gauges can also be used in adverse environmental conditions, such as dirt, increased humidity or at higher temperatures.
  • a further advantageous embodiment provides that the return spring is formed as an integral part of the body.
  • the return spring is formed as an integral part of the body.
  • Return spring be injected into a plastic body. In this way, the return spring is captive and firmly connected to the body.
  • the return spring is the number, type, material, shape,
  • the return spring is designed as a cantilevered leaf spring whose free end is in force transmission connection with the pedal plate.
  • the leaf spring is designed as a leaf spring slotted in the longitudinal direction. This makes it easy to create a redundant structure. Should an arm of slotted leaf spring break, for example, so the intact arm of the slotted leaf spring could at least partially fulfill the spring function.
  • the intact arm with the intact deformation sensor can at least partially fulfill the spring function and the sensor function.
  • the leaf spring has at least one embossment in the region of a bending point of the leaf spring.
  • the flexural rigidity of the leaf spring is increased in a structurally simple manner.
  • Friction element is attached to an attachment point on the pedal plate or the return spring. In this way, hysteresis can be generated in the desired manner by simple means. Depending on the selection of the friction pair, ie the selection of the material and the surface texture for the friction element and the return spring or the friction element and the pedal plate, a modification of the hysteresis is possible.
  • the friction element on the type, material, shape, dimensioning and arrangement within wide suitable limits freely selectable.
  • the attachment point of the friction element is adjustable. As a result, a fine calibration of the restoring force of the return spring is created in a structurally simple manner.
  • Embodiments provides that the position of the friction element in the direction of the normal force of the friction element is adjustable and / or the friction element is resiliently mounted in the direction of its normal force. This way is an improved Adjustment of the friction between the friction element and the return spring allows.
  • a further advantageous development of the teaching according to the invention provides that the return spring is designed as a carrier for electrical components. As a result, the number of required components is further reduced.
  • the pedal has an emergency spring, wherein the emergency spring transferred the pedal plate in response to a malfunction of the return spring by means of an emergency restoring force in the rest position. In this way it is possible to provide a redundant arrangement without the
  • the return spring can specifically targeted to their main function, namely the generation of the restoring force and the detection of the deflection angle of the pedal plate from the rest position, make.
  • a rotation axis is formed as a film hinge. This allows a very simple construction and manufacture of the pedal overall and in particular the axis of rotation.
  • the main body, the pedal plate and the film hinge can be made by injection molding of a material.
  • the film hinge is made separately from a composite material such as
  • FIG. 1 An embodiment of a pedal according to the invention in a partial side view.
  • the pedal according to the invention will be explained in more detail with reference to FIG.
  • the figure shows a gas pedal, so an accelerator pedal, for a motor vehicle with
  • the pedal plate 8 is movable back and forth between a rest position shown in the figure and a maximum operating position, not shown.
  • the pedal plate 8 is also formed of plastic and connected via the formed as a film hinge axis of rotation 6 with the housing 4.
  • the plastics for the housing 4 and the pedal plate 8 may be any plastics for the housing 4 and the pedal plate 8.
  • thermoplastics or thermosets For example, to act thermoplastics or thermosets.
  • the accelerator pedal 2 is a so-called "stationary accelerator pedal”.
  • the pedal plate 8 comes with a so-called kickdown element 9 in force transmission connection with a formed on the housing 4 paragraph 4.1 of the housing 4.
  • the kickdown element 9 is formed here as a separate unit and in a corresponding recess of the pedal plate 8 used.
  • the kickdown element 9 is used in a conventional manner to switch the automatic transmission of the motor vehicle.
  • the accelerator pedal 2 In the maximum operating position, the accelerator pedal 2 is fully penetrated by a motor vehicle driver, so the maximum deflection angle of the pedal plate 8 reaches from its rest position. Between the rest position and the maximum
  • the accelerator pedal 2 takes intermediate positions trained operating positions; the accelerator pedal 2 is thus infinitely adjustable. Furthermore, the accelerator pedal 2 has a return spring 10 designed as a leaf spring and a deformation sensor 12 designed as a strain gauge.
  • the leaf spring 10 is made of a metal and exerts a restoring force on the pedal plate 8 in the direction of the illustrated rest position.
  • the strain gauge 12 is disposed on the top surface of the leaf spring 10 shown in the sheet plane.
  • the strain gauge 12 In an operating position of the pedal plate 8, the strain gauge 12 provides an output signal corresponding to the deflection angle of the pedal plate 8 from its rest position.
  • the output signal of the strain gauge 12 is via a first electrically conductive connection 14 with an electronic evaluation circuit 16 in signal transmission connection, wherein the first electrically conductive connection 14 as well as the electronic evaluation circuit 16 are arranged on the leaf spring 10.
  • Edge contact plug basket is formed and molded onto the leaf spring 10 and its electrically conductive contacts by means of a second electrically conductive
  • the electrically conductive contacts of the connector basket 18 are not shown. For the purpose of edge contacting, these are formed in a manner known to those skilled in a printed circuit board, also not shown.
  • the electronic evaluation circuit is also arranged on the circuit board in deviation from the present embodiment, and is in signal transmission connection via the first electrically conductive connection 14 with the strain gauge 12.
  • strain gauge 12 the electrically conductive connections 14 and 20, the electronic evaluation circuit 16 and the friction element 24 are shown slightly spaced from the leaf spring 10. This is pure
  • strain gauges 12 are the electrically conductive ones
  • the plug basket 18 may be configured as needed. In this way it is possible, for example, different connector geometries of
  • both the plug basket 18 as well as the corresponding thereto, not shown plug for edge contact are designed to be suitable.
  • the assembly described, including the leaf spring 10 is clamped on one side in the housing 4. With a free end is the leaf spring 10 in power transmission connection with the pedal plate 8. However, the pedal plate 8 is not directly at the free end of the leaf spring 10 at.
  • a friction element 24 is used, which rests with a free end on the top surface in the leaf level of the leaf spring 10 and thus in
  • the leaf spring 10 is bent down in the leaf level and thus stretched.
  • the leaf spring 10 exerts on the pedal plate 8 designed as a counter force to the foot control of the motor vehicle driver restoring force.
  • the leaf spring 10 rotates the pedal plate 8 by means of the restoring force in the leaf plane in the counterclockwise direction about the film hinge 6 in the rest position shown.
  • the leaf spring 10 is directed again; the leaf spring 10 relaxes.
  • the friction element 24 slides back over the overhead surface of the leaf spring 10 back into the starting position shown in the figure, ie from the clamped end in the direction of the free end of the leaf spring 10th
  • the friction element 24 it is possible to image a desired, predetermined hysteresis.
  • the individual parameters such as the Materials and the surface textures of the two friction partners, so the leaf spring 10 and the friction element 24 are selected accordingly.
  • the kinetics of the accelerator pedal 2 is predetermined. A modification of the kinetics is possible by
  • the attachment point 22 of the friction element 24 is adjustable. This is symbolized in the figure by a double arrow 28.
  • a double arrow 28 In the concrete
  • Embodiment this is realized by the formation of several trained in the pedal plate 8 receptacles 22 in a structurally particularly simple manner.
  • the friction element 24 can be inserted into one of the receptacles 22 so as to either shorten or extend the lever arm, which is effective for transmitting power between friction element 24 and leaf spring 10.
  • Such an adjustment and / or suspension of the friction element 24 thus runs perpendicular to the frictional force between the leaf spring 10 and the friction element 24, which runs parallel to the arrow 26.
  • the accelerator pedal 2 of the embodiment an emergency spring 30, wherein the emergency spring 30, the pedal plate 8 in response to a malfunction of the leaf spring 10 is transferred by means of an emergency restoring force in the illustrated rest position. If the leaf spring 10 be damaged or destroyed, for example, break, then the emergency spring 30 ensures that the accelerator pedal 2 is not in an undesired operating position, for example, the maximum operating position, as the full throttle case remains, but is automatically transferred back into the illustrated rest position.
  • the leaf spring may be formed as a longitudinally slotted leaf spring.
  • the leaf spring may have at least one embossment in the region of a bending point of the leaf spring.
  • the friction element can also be arranged on the restoring spring, that is to say on a leaf spring, for example, and form a friction pairing with a surface of the pedal plate.
  • the invention can also be used advantageously in suspended pedals.
  • the invention is not limited to accelerator pedals for motor vehicles.
  • a use in clutch and brake pedals would be conceivable.
  • other foot-operated pedals regardless of use in motor vehicles, are also included in the invention.
  • a deformation sensor designed as a piezo element or as a capacitive sensor would also be possible.
  • the return spring does not necessarily have to be made of metal.
  • other materials such as plastics, in particular thermoplastics or thermosets, or combinations of materials would be conceivable.
  • Different materials could be mixed together, for example composites, also referred to as composite materials.
  • a layered arrangement of different materials and / or material combinations is also conceivable.
  • the return spring is also designed as a leaf spring, the manufacturing costs of the restoring spring can be additionally reduced.
  • Leaf springs have one simple geometry and can be made analogous to printed circuit boards or the like.
  • Pedal plate 8 is formed

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Mechanical Control Devices (AREA)

Abstract

La présente invention concerne une pédale (2), en particulier une pédale d'accélérateur (2), comprenant un corps de base (4) et une plaque de pédale (8) fixée au corps de base (4) de manière à pouvoir tourner autour d'un axe de rotation (6), la plaque de pédale (8) pouvant effectuer un mouvement de va-et-vient entre une position de repos et une position d'actionnement maximale, ainsi qu'au moins un ressort de rappel (10) qui exerce une force de rappel sur la plaque de pédale (8) en direction de la position de repos, et au moins un capteur de déformation (12). L'invention vise à fournir une pédale (2), en particulier une pédale d'accélérateur (2), dans laquelle l'angle de déviation de la plaque de pédale (8) à partir de sa position de repos peut être détecté d'une autre manière. À cet effet, le capteur de déformation (12) est disposé sur le ressort de rappel (10) et un signal de départ correspondant à l'angle de déviation de la plaque de pédale (8) à partir de sa position de repos peut être généré à l'aide du capteur de déformation (12).
PCT/EP2017/071942 2016-09-06 2017-09-01 Pédale, en particulier pédale d'accélérateur WO2018046394A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016116619.7A DE102016116619A1 (de) 2016-09-06 2016-09-06 Pedal, insbesondere Fahrpedal
DE102016116619.7 2016-09-06

Publications (1)

Publication Number Publication Date
WO2018046394A1 true WO2018046394A1 (fr) 2018-03-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/071942 WO2018046394A1 (fr) 2016-09-06 2017-09-01 Pédale, en particulier pédale d'accélérateur

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DE (1) DE102016116619A1 (fr)
WO (1) WO2018046394A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021129059A1 (de) 2021-11-09 2023-05-11 HELLA GmbH & Co. KGaA Pedal, insbesondere Fahrpedal für ein Kraftfahrzeug
DE102021129071A1 (de) 2021-11-09 2023-05-11 HELLA GmbH & Co. KGaA Vorrichtung zum Erfassen einer Pedalstellung, insbesondere eines Pedals in einem Kraftfahrzeug, zum Beispiel eines Fahrpedals, und Kraftfahrzeugpedal mit einer solchen Messeinrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112020002307T5 (de) 2019-05-09 2022-02-17 Cts Corporation Fahrzeugbremspedal mit pedalwiderstandsbaugruppe und kraft-/positionssensor
DE102020102400A1 (de) * 2020-01-31 2021-08-05 HELLA GmbH & Co. KGaA Elektrofahrzeug mit einer Rekuperationsvorrichtung, Fahrpedal für ein Elektrofahrzeug und Verfahren zur Einstellung des Rekuperationsgrads
WO2023154389A1 (fr) 2022-02-14 2023-08-17 KSR IP Holdings, LLC Ensemble pédale à détection de force

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0848313A2 (fr) * 1996-12-14 1998-06-17 Mannesmann VDO Aktiengesellschaft Pédale d'accélération
DE19732340A1 (de) * 1997-07-28 1999-02-04 Mannesmann Vdo Ag Fahrpedal
DE19741366C1 (de) 1997-09-19 1999-04-15 Siemens Ag Bremspedaleinrichtung
WO2005026861A2 (fr) * 2003-09-08 2005-03-24 Robert Bosch Gmbh Dispositif pedale de vehicules automobiles
DE102011076474A1 (de) * 2011-05-25 2012-11-29 Robert Bosch Gmbh Pedalwertgeberanordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0848313A2 (fr) * 1996-12-14 1998-06-17 Mannesmann VDO Aktiengesellschaft Pédale d'accélération
DE19732340A1 (de) * 1997-07-28 1999-02-04 Mannesmann Vdo Ag Fahrpedal
DE19741366C1 (de) 1997-09-19 1999-04-15 Siemens Ag Bremspedaleinrichtung
WO2005026861A2 (fr) * 2003-09-08 2005-03-24 Robert Bosch Gmbh Dispositif pedale de vehicules automobiles
DE102011076474A1 (de) * 2011-05-25 2012-11-29 Robert Bosch Gmbh Pedalwertgeberanordnung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021129059A1 (de) 2021-11-09 2023-05-11 HELLA GmbH & Co. KGaA Pedal, insbesondere Fahrpedal für ein Kraftfahrzeug
DE102021129071A1 (de) 2021-11-09 2023-05-11 HELLA GmbH & Co. KGaA Vorrichtung zum Erfassen einer Pedalstellung, insbesondere eines Pedals in einem Kraftfahrzeug, zum Beispiel eines Fahrpedals, und Kraftfahrzeugpedal mit einer solchen Messeinrichtung

Also Published As

Publication number Publication date
DE102016116619A1 (de) 2018-03-08

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