WO2023214471A1 - Dispositif de pédale pour véhicule - Google Patents

Dispositif de pédale pour véhicule Download PDF

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Publication number
WO2023214471A1
WO2023214471A1 PCT/JP2022/045034 JP2022045034W WO2023214471A1 WO 2023214471 A1 WO2023214471 A1 WO 2023214471A1 JP 2022045034 W JP2022045034 W JP 2022045034W WO 2023214471 A1 WO2023214471 A1 WO 2023214471A1
Authority
WO
WIPO (PCT)
Prior art keywords
pedal
pedal arm
pin
master cylinder
vehicle
Prior art date
Application number
PCT/JP2022/045034
Other languages
English (en)
Japanese (ja)
Inventor
健一朗 永井
Original Assignee
豊田鉄工株式会社
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 豊田鉄工株式会社 filed Critical 豊田鉄工株式会社
Publication of WO2023214471A1 publication Critical patent/WO2023214471A1/fr

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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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/18—Connection thereof to initiating means
    • 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
    • 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
    • B60T7/06—Disposition of pedal
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • 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
    • 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
    • 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

Definitions

  • the present disclosure relates to a pedal device for a vehicle.
  • a vehicle pedal device includes a pedal arm, a telescoping device, and a link mechanism.
  • the pedal arm extends upward from the pedal fixing shaft.
  • the pedal arm rotates around the center axis of the pedal fixing shaft as the driver of the vehicle depresses the pedal.
  • the telescoping device is located further forward of the vehicle than the pedal arm.
  • the expansion and contraction device is capable of expanding and contracting in the vertical direction.
  • the expansion and contraction device includes a master cylinder that applies hydraulic pressure to the brake device of the vehicle to operate the device, and a reaction force that applies a reaction force to the pedal arm when the driver depresses the pedal arm. Examples include equipment.
  • the link mechanism is connected to the pedal arm and the telescoping device.
  • the link mechanism converts the rotational movement of the pedal arm into the telescopic movement of the telescoping device when the pedal arm rotates around the central axis of the pedal fixing shaft due to a pedal operation by the driver.
  • the link mechanism disclosed in Patent Document 1 includes a connecting link, a central shaft, and an auxiliary link.
  • a connecting link is arranged between the pedal arm and the telescoping device.
  • the connecting link is rotatable around a central axis of a central shaft fixed to the vehicle.
  • a first end of the connecting link is connected to the telescoping device, and a second end of the connecting link is connected to the pedal arm via an auxiliary link.
  • the link mechanism must be made larger in order to retract the telescoping device by the necessary amount by stepping on (rotating) the pedal arm.
  • the first end of the connecting link that connects to the telescoping device is separated from the rotating shaft by a large distance, and the connecting link that connects to the pedal arm via the auxiliary link It is necessary to separate the second end of the rotary shaft from the rotation axis by a large distance. Furthermore, it is necessary to interpose an auxiliary arm between the connecting link and the pedal arm.
  • the rotational motion of the pedal arm is efficiently converted into the telescopic motion of the telescoping device.
  • the telescoping device that expands and contracts in the vertical direction is arranged in front of the pedal arm, the telescoping device can be retracted by the necessary amount by pressing (rotating) the pedal arm.
  • the link mechanism becomes larger in the longitudinal direction of the vehicle. This makes it difficult to secure an installation space for the pedal device.
  • a pedal device for a vehicle includes a pedal arm, a telescoping device, and a link mechanism.
  • the pedal arm extends upward from the pedal fixing axis, and is configured to rotate around the center line of the pedal fixing axis as the driver of the vehicle depresses the pedal.
  • the expansion and contraction device is located on the front side of the vehicle rather than the pedal arm, and is configured to expand and contract in the vertical direction.
  • the link mechanism is connected to the pedal arm and the telescoping device, and when the pedal arm rotates around the central axis of the pedal fixing shaft due to the driver's depression operation, the link mechanism converts the rotational motion of the pedal arm into the telescoping motion of the telescoping device. It is configured as follows.
  • the link mechanism includes a connecting link and a rotating lever.
  • a connecting link extends between the pedal arm and the telescoping device to connect the pedal arm and the telescoping device.
  • the connecting link has a first end and a second end in the longitudinal direction of the connecting link.
  • the first end is coupled to the pedal arm via a first pin having a central axis parallel to the pedal fixation axis, and is thereby configured to rotate about the central axis of the first pin.
  • the second end is connected to the telescoping device via a second pin having a central axis parallel to the pedal fixation axis and is thereby configured to rotate about the central axis of the second pin.
  • the rotating lever extends upward from a lever fixing shaft parallel to the pedal fixing shaft, and is configured to rotate around the central axis of the lever fixing shaft.
  • the upper end of the rotating lever is connected between the first and second ends of the connecting link via a third pin having a central axis parallel to the pedal fixing axis, so that configured to rotate.
  • FIG. 1 is a side view showing the pedal device of the first embodiment.
  • FIG. 2 is a side view showing the pedal device in FIG. 1 when the pedal arm is depressed;
  • FIG. 3A is a side view showing the pedal device of the second embodiment.
  • FIG. 3B is an enlarged view showing the area surrounded by the circle indicated by the symbol 3B in FIG. 3A.
  • FIG. 4A is a side view showing the pedal device when the switching mechanism shown in FIG. 3A performs a switching operation.
  • FIG. 4B is an enlarged view showing the area surrounded by the circle indicated by the reference numeral 4B in FIG. 4A.
  • FIG. 3B is an enlarged view showing the area surrounded by the circle indicated by the reference numeral 5 in FIG. 3A.
  • FIG. 4B is an enlarged view showing the area surrounded by the circle indicated by the reference numeral 6 in FIG. 4A.
  • the vehicle pedal device includes a pedal arm 11, a telescoping device 12, and a link mechanism 13.
  • the pedal arm 11 extends upward from a pedal fixing shaft 14 fixed to the vehicle.
  • the pedal arm 11 rotates around the central axis of the pedal fixing shaft 14 as the driver of the vehicle depresses the pedal.
  • FIG. 1 shows the pedal device when the pedal arm 11 is not depressed.
  • FIG. 2 shows the pedal device when the pedal arm 11 is depressed.
  • the telescoping device 12 is located on the front side of the vehicle relative to the pedal arm 11, that is, on the left side in FIG.
  • the expansion/contraction device 12 is fixed to the vehicle and can be expanded/contracted in the vertical direction.
  • the vertical direction mentioned here includes not only a direction perpendicular to a horizontal plane but also a direction inclined to some extent with respect to the perpendicular direction.
  • the telescopic device 12 is arranged so that its longitudinal direction substantially coincides with the longitudinal direction of the pedal arm 11 in the state shown in FIG.
  • Other parts of the vehicle such as a collision reinforcement member 15, are arranged on the front side of the vehicle with respect to the pedal arm 11. It is necessary to secure a work space above the pedal arm 11 to allow the driver to move his or her feet when stepping on the pedal arm 11.
  • the expansion and contraction device 12 is arranged as described above for the purpose of avoiding interference with the collision reinforcement member 15 and securing the work space.
  • the telescoping device 12 includes a master cylinder that applies hydraulic pressure to the brake device of the vehicle to operate the device, and a master cylinder that applies a reaction force to the pedal arm 11 when the driver depresses the pedal arm 11. Examples include reaction force devices.
  • a master cylinder is used as the telescoping device 12.
  • the link mechanism 13 is connected to the pedal arm 11 and the telescoping device 12.
  • the link mechanism 13 converts the rotational movement of the pedal arm 11 into an elastic movement of the extension/retraction device 12 .
  • the structure of the link mechanism 13 will be described in detail below.
  • the link mechanism 13 includes a connecting link 16 and a rotating lever 20.
  • the connecting link 16 extends between the pedal arm 11 and the telescoping device 12 so as to connect the pedal arm 11 and the telescoping device 12.
  • a first longitudinal end of the connecting link 16 is connected to the pedal arm 11 via a first pin 18 having a central axis parallel to the pedal fixing shaft 14 .
  • the first pin 18 is located above the pedal fixing shaft 14.
  • the first end of the connecting link 16 is rotatable around the central axis of the first pin 18 .
  • the second end of the connecting link 16 in the longitudinal direction is connected to the telescoping device 12 via a second pin 19 having a central axis parallel to the pedal fixing shaft 14.
  • the second pin 19 is located at the lower end of the telescoping device 12 .
  • the expansion and contraction device 12 expands and contracts by this vertical movement of the lower end.
  • the second end of the connecting link 16 can rotate around the central axis of the second pin 19.
  • the rotating lever 20 is arranged to extend in the vertical direction between the pedal arm 11 and the telescoping device 12.
  • the vertical direction mentioned here includes not only a direction perpendicular to a horizontal plane but also a direction inclined to some extent with respect to the perpendicular direction.
  • the lower end of the rotating lever 20 is fixed to a lever fixing shaft 21 parallel to the pedal fixing shaft 14.
  • the lever fixing shaft 21 is located further forward of the vehicle (on the left side in FIG. 1) than the pedal fixing shaft 14.
  • the lever fixing shaft 21 is fixed to the vehicle.
  • the rotating lever 20 extends upward from the lever fixing shaft 21 and can rotate around the central axis of the lever fixing shaft 21.
  • the upper end of the rotating lever 20 is connected to a portion of the connecting link 16 between the first and second ends via a third pin 22 having a central axis parallel to the pedal fixing shaft 14.
  • the upper end of the rotary lever 20 can rotate around the central axis of the third pin 22.
  • connection point of the rotating lever 20 that rotates in this way with the connecting link 16 moves toward the telescopic device 12.
  • the connecting link 16 that moves together with the pedal arm 11 rotates around the central axis of the third pin 22 as shown by arrow Y3 in FIG.
  • the portion of the connecting link 16 connected to the lower end of the telescopic device 12 moves upward, thereby causing the telescopic device 12 to contract upward.
  • the movement of the rotary lever 20 and the connecting link 16 described above allows the telescoping device 12 to be retracted by the required amount.
  • the pedal device of this embodiment shown in FIGS. 3A and 4A includes a reaction force device used as a telescoping device 12, and is provided with a master cylinder 31 separately from the telescoping device 12.
  • the master cylinder 31 is located below the link mechanism 13.
  • the master cylinder 31 is fixed to the vehicle and can expand and contract in the longitudinal direction of the vehicle (the left-right direction in FIG. 3A).
  • the master cylinder 31 has a tip (right end in FIG. 3A) connected to the pedal arm 11, and contracts as the driver depresses the pedal arm 11.
  • the master cylinder 31 extends as the pedal arm 11 is released from the depression operation.
  • a vehicle equipped with this pedal device operates the brake device in either a by-wire operation mode or a by-wire non-operation mode.
  • the by-wire operation mode the amount of operation of the pedal arm 11 when the driver depresses the pedal arm 11 is detected by a sensor. Then, the brake device is operated based on the detected operation amount.
  • the master cylinder 31 does not apply hydraulic pressure to the brake device when the pedal arm 11 is contracted due to a depression operation. Therefore, even if the pedal arm 11 is depressed in the by-wire operation mode, no reaction force from the master cylinder 31 will act on the pedal arm 11.
  • the vehicle When the sensor that detects the amount of operation of the pedal arm 11 fails, the vehicle operates the brake system in a by-wire non-operation mode.
  • the master cylinder 31 applies hydraulic pressure to the brake device as it contracts to operate the brake device. Therefore, in the by-wire non-operation mode, when the driver depresses the pedal arm 11, the master cylinder 31 contracts and hydraulic pressure is applied to the brake device. Then, the brake device is operated by the applied hydraulic pressure. Therefore, when the pedal arm 11 is depressed in the by-wire non-operation mode, a reaction force from the master cylinder 31 acts on the pedal arm 11.
  • the pedal device includes a switching mechanism 32.
  • the switching mechanism 32 applies a reaction force from the expansion and contraction device 12, which is a reaction force device, to the pedal arm 11 in the by-wire operation mode.
  • the switching mechanism 32 interrupts transmission of the reaction force from the telescoping device 12 to the pedal arm 11 during the by-wire non-operation mode. Therefore, in the by-wire non-operation mode, it is possible to avoid the fact that in addition to the reaction force from the master cylinder 31, the reaction force from the expansion and contraction device 12 acts on the pedal arm 11.
  • the switching mechanism 32 includes a switching bracket 33 and a collar 34.
  • the switching bracket 33 is arranged to extend along the pedal arm 11. A portion of the switching bracket 33 between both ends in the longitudinal direction is connected to the pedal arm 11 via a fourth pin 35.
  • the fourth pin 35 is located between the first pin 18 and the pedal fixing shaft 14. The switching bracket 33 can rotate relative to the pedal arm 11 around the central axis of the fourth pin 35.
  • the first pin 18 is movable between a connected position P1 shown in FIG. 3A and a non-connected position P2 shown in FIG. 4A.
  • the first pin 18 receives a reaction force from the expansion and contraction device 12, which is a reaction force device, and is held at the connection position P1.
  • FIG. 5 shows an enlarged view of the portion surrounded by the circle indicated by the reference numeral 5 in FIG. 3A.
  • FIG. 6 shows an enlarged view of a portion surrounded by a circle indicated by the reference numeral 6 in FIG. 4A.
  • a recess 36 is formed in the pedal arm 11.
  • the recess 36 opens toward the front of the vehicle, that is, toward the left in FIG. 5 .
  • the first pin 18 is housed in the recess 36 .
  • the first pin 18 is held at the connection position P1 by being pressed against the inner wall of the recess 36 in response to a reaction force from the expansion and contraction device 12 (FIG. 3A).
  • the first pin 18 is connected to the pedal arm 11 by being held at the connection position P1.
  • a reaction force from the telescoping device 12 acts on the pedal arm 11 via the first pin 18 of the link mechanism 13.
  • the upper end of the switching bracket 33 is in contact with the first pin 18 held at the connection position P1.
  • the collar 34 of the switching mechanism 32 is connected to the master cylinder 31, the pedal arm 11, and the lower end of the switching bracket 33.
  • the collar 34 is fixed to the tip of the master cylinder 31, that is, to the right end of the master cylinder 31 in FIG. 3A.
  • the center axis of the collar 34 is parallel to the pedal fixing shaft 14.
  • the tip of the master cylinder 31 is connected to the lower end of the switching bracket 33 via a collar 34.
  • the lower end of the switching bracket 33 can rotate relative to the collar 34 around the central axis of the collar 34.
  • a hole 37 for passing the collar 34 is formed in a portion of the pedal arm 11 between the pedal fixing shaft 14 and the fourth pin 35.
  • the hole 37 has a larger diameter than the collar 34. This allows the collar 34 to move relative to the pedal arm 11 within a predetermined range in the direction of expansion and contraction of the master cylinder 31.
  • the collar 34 When in the by-wire mode of operation, the collar 34 is positioned as shown in Figure 3B.
  • the master cylinder 31 applies hydraulic pressure to the brake device.
  • the master cylinder 31 expands as the hydraulic pressure acts on the master cylinder 31, the collar 34 connected to the master cylinder 31 moves relative to the pedal arm 11 within the predetermined range as shown in FIG. 4B. .
  • the switching bracket 33 connected to the collar 34 rotates relative to the pedal arm 11 around the central axis of the fourth pin 35 as shown by arrow Y4 in FIG. 4A.
  • This relative rotation of the switching bracket 33 is performed against the reaction force of the telescopic device 12, which is a reaction force device. That is, the reaction force of the expansion/contraction device 12 is set to be smaller than the force generated when the master cylinder 31 is expanded by the above-mentioned hydraulic pressure.
  • the relationship between the reaction force of the telescoping device 12 acting on the switching bracket 33 and the force based on the hydraulic pressure of the master cylinder 31 is such that the force based on the hydraulic pressure of the master cylinder 31 is stronger than the reaction force of the telescoping device 12. It is set to be large. This allows the relative movement of the collar 34, that is, the relative rotation of the switching bracket 33.
  • the first pin 18 Due to the relative rotation of the switching bracket 33, the first pin 18 is pushed to the left in FIG. 4A by the upper end of the switching bracket 33. As a result, the first pin 18 moves from the connected position P1 shown by the two-dot chain line in FIG. 6 to the unconnected position P2 shown by the solid line.
  • the master cylinder 31 applies hydraulic pressure to the brake device.
  • the collar 34 connected to the master cylinder 31 moves relative to the pedal arm 11 within the predetermined range.
  • the switching bracket 33 connected to the collar 34 rotates relative to the pedal arm 11 around the central axis of the fourth pin 35, so that the first pin 18 held at the connecting position P1 Move to uncoupled position P2.
  • the connection of the first pin 18 to the pedal arm 11 is released, so that the transmission of reaction force from the expansion/contraction device 12 to the pedal arm 11 via the connection link 16 and the first pin 18 is interrupted.
  • the pedal arm 11 is depressed, no reaction force is transmitted from the expansion/contraction device 12 to the pedal arm 11.
  • a master cylinder was used as the expansion/contraction device 12, but a reaction force device may be used as the expansion/contraction device 12 as in the second embodiment.
  • the pedal arm 11 may be used for an accelerator pedal or a clutch pedal.
  • the angle of inclination of the pedal arm 11 and the expansion/contraction device 12 with respect to the horizontal plane may be changed as appropriate.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Braking Elements And Transmission Devices (AREA)
  • Mechanical Control Devices (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

La présente invention concerne un dispositif de pédale pour un véhicule qui est pourvu d'un bras de pédale (11), d'un dispositif d'expansion/contraction (12) et d'un mécanisme de liaison (13). Le bras de pédale (11) est configuré pour tourner autour de l'axe central d'un arbre fixe de pédale (14) lorsque l'on marche dessus. Le dispositif d'expansion/contraction (12) est situé plus près de l'avant du véhicule que le bras de pédale (11). Le mécanisme de liaison (13) est configuré pour convertir le mouvement de rotation du bras de pédale (11) en mouvement d'expansion/contraction du dispositif d'expansion/contraction (12). Le mécanisme de liaison (13) comprend une liaison (16) et un levier rotatif (20). La liaison (16) relie le bras de pédale (11) et le dispositif d'expansion/contraction (12). L'extrémité supérieure du levier rotatif (20) est reliée à la partie entre les extrémités longitudinales de la liaison (16).
PCT/JP2022/045034 2022-05-02 2022-12-07 Dispositif de pédale pour véhicule WO2023214471A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-076078 2022-05-02
JP2022076078A JP2023165252A (ja) 2022-05-02 2022-05-02 車両のペダル装置

Publications (1)

Publication Number Publication Date
WO2023214471A1 true WO2023214471A1 (fr) 2023-11-09

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Application Number Title Priority Date Filing Date
PCT/JP2022/045034 WO2023214471A1 (fr) 2022-05-02 2022-12-07 Dispositif de pédale pour véhicule

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WO (1) WO2023214471A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006151220A (ja) * 2004-11-30 2006-06-15 Nissan Motor Co Ltd 車両用ブレーキ装置
JP2021117613A (ja) * 2020-01-23 2021-08-10 トヨタ自動車株式会社 車両用ペダル装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006151220A (ja) * 2004-11-30 2006-06-15 Nissan Motor Co Ltd 車両用ブレーキ装置
JP2021117613A (ja) * 2020-01-23 2021-08-10 トヨタ自動車株式会社 車両用ペダル装置

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JP2023165252A (ja) 2023-11-15

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