KR101659342B1 - Electrical acceleration pedal assembly - Google Patents

Electrical acceleration pedal assembly Download PDF

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Publication number
KR101659342B1
KR101659342B1 KR1020160019596A KR20160019596A KR101659342B1 KR 101659342 B1 KR101659342 B1 KR 101659342B1 KR 1020160019596 A KR1020160019596 A KR 1020160019596A KR 20160019596 A KR20160019596 A KR 20160019596A KR 101659342 B1 KR101659342 B1 KR 101659342B1
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KR
South Korea
Prior art keywords
pedal
arm
friction
housing
pedal arm
Prior art date
Application number
KR1020160019596A
Other languages
Korean (ko)
Inventor
임중혁
채성복
황재순
최광주
박진홍
Original Assignee
명성테크놀로지 주식회사
동서콘트롤(주)
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Priority to KR1020160019596A priority Critical patent/KR101659342B1/en
Application granted granted Critical
Publication of KR101659342B1 publication Critical patent/KR101659342B1/en

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    • 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
    • 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
    • B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
    • 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

Abstract

Provided is an electronic accelerator pedal assembly exhibiting a hysteresis characteristic. According to the present invention, the electronic accelerator pedal assembly comprises: a pedal housing in which an inner face extending along a curved path is formed; a pedal arm, one end of which is rotationally coupled to the pedal housing and at the other end of which a pedal pad pressurized by a foot is formed; a friction member provided with a friction face contacting with the inner face of the pedal housing; and a friction arm connecting the friction member with the pedal arm. At least one of the pedal arm and the friction arm has a curved face protrusion part protruding as a curved face toward the other to be contacted with the other by the curved face protrusion part as a medium. When the pedal arm rotates clockwise and counterclockwise with respect to the pedal housing, the contact between the pedal arm and the friction arm by the curved face protrusion part as a medium is continuously maintained and the friction arm pressurized by being contacted with the pedal arm pressurizes the friction member toward the inner face of the pedal housing.

Description

[0001] DESCRIPTION [0002] Electrical acceleration pedal assembly [

The present invention relates to an accelerator pedal assembly, and more particularly to an electronic accelerator pedal assembly exhibiting hysteresis characteristics.

A typical automobile is configured to open the throttle of the engine by stepping on the pedal pad of the accelerator pedal during acceleration. The portion including the accelerator pedal and causing the opening and closing of the throttle valve is referred to as an accelerator pedal assembly.

The mechanical accelerator pedal assembly connects the accelerator pedal and the throttle valve via an accelerator cable, and when the driver depresses the pedal pad, the accelerator cable is pulled to open the throttle valve. Such a mechanical accelerator pedal assembly has a problem that the opening degree of the throttle valve can be changed from the initial value because the tension of the accelerator cable is changed by long use.

The electronic accelerator pedal assembly is configured such that when the driver depresses the pedal pad, the sensor senses the rotation of the pedal arm and transmits an output voltage corresponding to an amount of depression of the accelerator pedal to the electronic throttle valve as an electric signal, thereby opening the throttle valve. Since the electronic accelerator pedal assembly is independent of the change in tension of the mechanical accelerator pedal operated by connecting the accelerator cable, it improves the operational reliability, improves the operation feeling of the driver, reduces fatigue, and reduces fuel consumption through optimization of combustion.

The accelerator pedal assembly is generally provided with hysteresis characteristics to significantly reduce the driver's fatigue. The hysteresis characteristic refers to the difference between the steering force when the driver steps on the pedal pad and the magnitude of the force applied from the pedal pad to the driver's foot when the driver does not press the pedal pad.

Further, when the driver depresses and presses the pedal pad, the pressing force of the driver depressing the pedal pad is required to be greater than the sum of the resilient force of the spring and the frictional force between the friction member and the pedal housing. On the other hand, if the pedal pad on which the driver is stepping on is released, the magnitude of the force applied to the driver's foot from the pedal pad by the frictional force between the friction member and the inside surface of the pedal housing is relatively smaller than the pressing force when the driver depresses the pedal pad .

In order for the hysteresis characteristic to appear stably in the accelerator pedal assembly, the friction member must move along the inner surface of the pedal housing and contact the inner surface of the pedal housing with a constant area and pressing force. However, in the conventional accelerator pedal assembly, as the pedal arm rotates, the friction member and the inner surface of the pedal housing can be separated from each other, thereby making the hysteresis characteristic unstable and increasing the fatigue of the driver. Further, the friction surface of the friction member may not be in contact with the inner surface of the pedal housing evenly, but may be partially contacted, so that the irregular wear may be increased and the durability may be deteriorated.

Meanwhile, the conventional electronic accelerator pedal assembly includes a potentiometer as a sensor for detecting the rotation of the pedal arm. In addition, the reference voltage is applied to both ends of the resistance element according to the displacement of pressing the pedal pad of the accelerator pedal to mechanically move the brush along the resistance element, and at one end of the brush and resistance element is proportional to the relative position of the brush The voltage output can be obtained and the amount of displacement of the brush can be measured. The electronic accelerator pedal assembly including the potentiometer generates noises during operation, and when used for a long period of time, there is a problem that the voltage output may be different from the initial voltage due to wear or damage of the resistance element due to contact with the brush.

Korean Patent Registration No. 10-0930662

The present invention provides an electronic accelerator pedal assembly in which a friction member stably contacts the inside surface of the pedal housing in a rotation section of the pedal arm to exhibit reliable hysteresis characteristics.

The present invention provides an electronic accelerator pedal assembly in which the friction member is evenly contacted with the inner side surface of the pedal housing uniformly to improve durability.

The present invention relates to a pedal pad having a pedal housing with an inner side extending along a curved path formed therein, a pedal pad having one end fastened to the pedal housing rotatably with respect to the pedal housing, And a friction arm connecting the friction member and the pedal arm. The pedal arm includes a pedal arm formed with a pedal arm, a pedal arm formed on the pedal arm, a friction member having a friction surface contacting the inner surface of the pedal housing, And at least one of the frictional arms has a curved protrusion protruding in a curved shape toward the counterpart and is in contact with the counterpart via the curved protrusion. When the pedal arm rotates clockwise and counterclockwise with respect to the pedal housing , The contact between the pedal arm and the friction arm through the curved surface projection portion is continuously maintained, and the frictional arm contacted by the pedal arm And the friction member is pressed toward the inner side of the pedal housing.

The friction arm may be rotatably connected to the pedal arm with respect to the pedal arm.

The pedal arm has a supporting lever portion for restricting a rotatable angle of the friction arm and supporting the frictional arm, and the frictional arm is formed with a lever receiving recessed portion for receiving the supporting lever portion .

Wherein the pedal arm is elastically biased in a direction opposite to the direction in which the pedal pad is rotated when the pedal pad is pressed and the means for biasing the pedal arm elastically biases the at least one A coil spring of a coil spring.

Wherein the at least one coil spring is a pair of first and second coil springs, the second coil spring is inserted into the first coil spring, and noise is generated between the first coil spring and the second coil spring A noise preventing member may be interposed.

The friction arm includes a spring support portion for supporting one end of the at least one coil spring and a friction member connection portion which is bent and extended in the direction of approaching the at least one coil spring at the spring support portion and connected to the friction member .

The friction member may be rotatably connected to the friction arm so that the entire friction surface of the friction member is continuously contacted with the inner circumferential surface of the pedal housing when the pedal arm rotates with respect to the pedal housing.

The electronic accelerator pedal assembly of the present invention includes a pair of hall sensors for sensing the rotational angle of the pedal arm according to the displacement of the pedal pad in a noncontact manner without mechanical contact, The semiconductor package may further include a semiconductor package.

According to the present invention, there is provided an accelerator pedal assembly comprising: a pedal arm fastening protrusion coupled to the pedal arm and coaxially rotating when the pedal arm is rotated; and a pedal arm fastening protrusion mounted on an end of the pedal arm fastening protrusion, And a permanent magnet disposed to face the semiconductor chip package.

According to the present invention, when the pedal arm rotates with respect to the pedal housing, the curved surface protrusion formed on at least one of the friction arm and the pedal arm continuously contacts the other regardless of the rotational angle and the rotational direction of the pedal arm, Pressure. Therefore, the frictional arm continuously presses the friction member toward the inner side surface of the pedal housing, so that the friction member stably contacts the inner surface of the pedal housing in the rotation section of the pedal arm to exhibit reliable hysteresis characteristics.

Furthermore, according to a preferred embodiment of the present invention in which the friction arm is finely rotatably connected to the pedal arm or the friction member is finely rotatably connected to the friction arm, the friction surface of the friction member when the pedal arm rotates The frictional arm or the friction member is finely rotated so as to be able to be rubbed with the maximum area on the inner surface of the pedal housing, and the posture is changed, so that reliability and uniformity of the hysteresis characteristic are further improved.

According to the present invention, the friction member is uniformly contacted with the inner side surface of the pedal housing in an uneven manner to improve the durability of the friction member and the electronic accelerator pedal assembly including the friction member.

According to a preferred embodiment of the present invention having a semiconductor chip package including a pair of Hall sensors integrated, a pair of Hall sensors disposed close to a permanent magnet coaxially rotating with the pedal arm is used, It is possible to transmit a stable output voltage for a long lifetime by measuring the angle of rotation of the motor and to prevent wear and noise due to brush contact during operation compared with a conventional electronic accelerator pedal assembly equipped with a sensor using a potentiometer, More stable supply, and improved durability.

Further, since the manufacturing process is simplified by mounting the semiconductor chip package including the pair of Hall sensors on the PCB without mounting and aligning the pair of Hall sensors on the PCB of the sensor module, the productivity is improved Defects decrease.

FIG. 1 is a perspective view showing an electronic accelerator pedal assembly according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG.
FIGS. 3 and 4 are front views showing the remaining parts of the sensor module and the pedal housing removed in FIG. 1. FIG. 3 is a view showing a state in which the pedal arm is not rotated, Fig.
5 is a cross-sectional view cut along the line VV in Fig.
FIG. 6 is an exploded perspective view of the sensor module of FIG. 1; FIG.
Fig. 7 is an electrical block diagram of a pair of Hall sensors formed in the semiconductor chip package of Fig. 6; Fig.

Hereinafter, an electronic accelerator pedal assembly according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.

FIG. 1 is an exploded perspective view of the electronic accelerator pedal assembly according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of FIG. 1, Fig. 3 is a view showing a state in which the pedal arm is not rotated, Fig. 4 is a view showing a state in which the pedal arm is rotated to the maximum, Fig. 5 is a cross- Fig. 1 to 5, an electronic accelerator pedal assembly 10 according to an embodiment of the present invention includes a pedal arm housing 11, a pedal arm 30, a friction arm (not shown) a friction arm 40, a friction member 50, first and second coil springs 55 and 56, and a sensor module 70.

The pedal arm housing 11 is formed by fastening a base 15 and a cover 12 with screws and has an inner space in which one end of the pedal arm 30 is inserted . The base 15 is provided with a coupling bracket portion 16 for fixing the pedal arm housing 11 to the dash panel (not shown) of the driver's seat of the vehicle by screw fastening. A pedal arm mounting groove 18 is formed on the bottom surface of the base 15 so that the pedal arm 30 is rotatably mounted. A side wall on one side in a direction parallel to the Z axis among the side walls extending in the direction of the cover 12 from the edge of the bottom surface of the base 15 is provided with a pedal arm through groove 17 Is formed.

The inner side surface 20 of the opposite side wall of the sidewall on which the pedal arm through groove 17 is formed extends along a curved path. The curved path of the inner side surface 20 is a path extending along an arc that is spaced apart from the rotation axis RC of the pedal arm 30 by a predetermined distance. Spring supporting protrusions (55, 56) for supporting one side end of the first and second coil springs (55, 56) are formed on side walls between the side wall on which the pedal arm through grooves 17 are formed and the side walls on which the inner side surface 20 of the curved path is formed 23 are provided. On the other hand, a spring guide groove 24 is formed on the bottom surface of the base 15 so that the first and second coil springs 55 and 56 are compressed or expanded along the curved path as intended.

At one end of the pedal arm 30, a circular protrusion 33 protruding in a direction parallel to the X-axis and having a circular cross section is formed and fitted in the pedal groove mounting groove 18. The pedal arm 30 extends through the pedal arm through groove 17 to extend to the outside of the pedal housing 11 and a pedal pad 31 Is formed. Accordingly, the pedal arm 30 is rotatable in the clockwise direction and the counterclockwise direction about the pedal housing 11 about the rotation axis line RC parallel to the X axis, and the rotatable angle is formed in the pedal arm through- 17).

At one end of the pedal arm 30, a crisscross engaging groove 34 is formed along the rotation axis RC. The inner circumferential surface of the cross-shaped fastening groove 34 has a cross-sectional shape, and a pedal arm fastening protrusion 60 to be described later is fitted. A support lever portion 36 protruding toward the inner side surface 20 is formed on one side of the pedal arm 30 so as to support the friction arm 40. A hinge protrusion 39 and a curved protrusion 37 are formed in the portion where the support lever portion 36 and the circular protrusion 33 are connected. The hinge protrusion 39 protrudes in parallel with the X-axis and has a circular section. The curved surface projection 37 of the pedal arm 30 is curved toward the friction arm 40 and held in contact with the friction arm 40 regardless of the rotational direction and the rotational angle of the pedal arm 30. [

The friction member (50) has a friction surface (51) in frictional contact with the inner surface (20). The friction arm (40) connects the friction member (50) and the pedal arm (30) in the inner space of the pedal housing (11). The friction arm 40 includes a spring support portion 41 and a friction member 50 which is bent and extended in a direction in which the spring support portion 41 is close to the first and second coil springs 55 and 56, And a connecting portion 45. A spring supporting groove 42 is formed in the spring supporting part 41 so that the ends of the first and second coil springs 55 and 56 are seated. The central guide protrusion 43 is formed so that the end of the spring guide groove 56 is inserted and fixed in the spring support groove 42.

The first and second coil springs 55 and 56 are disposed in the inner space of the pedal housing 11 to elastically bias the pedal arm 30. One end of the first and second coil springs 55 and 56 is supported by the spring support protrusion 23 of the base 15 and the other end is supported by the spring support groove 42 of the friction arm 40 And the second coil spring 56 is fitted in the center guide protrusion 43. [ The first and second coil springs 55 and 56 are guided by the spring guide grooves 24 of the base 15 so as to be bent along a predetermined path at the time of compression and expansion.

The second coil spring 56 is inserted into the first coil spring 55. A noise preventing member 57 for preventing noise is interposed between the first coil spring 55 and the second coil spring 56. The noise preventing member 57 may be, for example, a porous resin such as a sponge. When the pedal pad 31 is stepped on, the pedal arm 30 rotates in the counterclockwise direction about the rotation axis RC. The first and second coil springs 55 and 56 move the friction arm 40 The pedal arm 30 is elastically biased so as to rotate clockwise in the opposite direction, that is, around the rotation axis RC. The second coil spring 56 serves as an auxiliary spring that allows the accelerator to function even if the first coil spring 55 is broken due to shock or use fatigue accumulation.

A lever accommodating groove portion 48 is formed on the opposite side of the spring support groove portion 42 of the friction arm 40 so as to receive the support lever portion 36 of the pedal arm 30 (refer to FIG. 5). The frictional arm 40 is provided with a hinge connection groove 49 which is engaged with the hinge protrusion 39 of the pedal arm 30 so as to be connected to the curved protrusion 37 of the pedal arm 30, A curved surface projection 47 is formed. 3 and 4, the friction arm 40 is rotatable clockwise and counterclockwise limitedly about the hinge protrusion 39 of the pedal arm 30. As shown in FIG. Clockwise rotation of the frictional arm 40 about the hinge protrusion 39 is limited by the support lever portion 36 of the pedal arm 30 and counterclockwise rotation is limited by the first and second coil springs 55, and 56, respectively.

The frictional member 50 has a hinge protrusion 52 extending in parallel to the X axis in a semicircular shape in cross section on the side opposite to the friction surface 51. The frictional member connection portion 45 of the frictional member 40, A hinge groove 46 is formed in which the hinge protrusion 52 is closely contacted. 3 and 4, the friction member 50 is rotatable clockwise and counterclockwise about its own hinge projection 52 with respect to the frictional arm 40. As shown in Fig.

When the pedal pad 31 is stepped on the pedal arm 30 as shown by the arrow RA1 in Figs. 3 to 5 and the pedal arm 30 is rotated in the counterclockwise direction with respect to the rotation axis line RC, Even when the pedal arm 30 is rotated in the clockwise direction with respect to the rotation axis line RC by the resilient restoring force of the first and second coil springs 55 and 56 when the pedal arm 30 is released, And the curved surface projection 47 of the friction arm 40 are kept in contact with each other without falling, so that the pedal arm 30 presses the friction arm 40. Accordingly, the friction arm 40 also pressurizes the friction member 50 toward the inner side surface 20 of the pedal housing 11, so that the friction member 50 is pressed against the inner surface 20 of the pedal arm 30, Stably contacts the side surface 20, and has a reliable hysteresis characteristic.

Furthermore, when the pedal arm 30 rotates about the rotation axis RC along the arrow RA1, the friction surface 51 of the friction member 50 reaches the inner surface 20 of the pedal housing 11 with a maximum area The frictional member 40 is slightly rotated about the hinge projection 39 of the pedal arm 30 along the arrow RA2 and the friction member is also rotated along the arrow RA3 in the hinge projections 39, And the posture is finely adjusted by adjusting the posture. Therefore, the force transmitted from the pedal arm 30 to the friction member 50 through the friction arm 40 is constant regardless of the rotational angle at the time of the rotation of the pedal arm 30 about the rotation axis RC And the entire surface of the friction surface 51 is continuously contacted with the inner surface 20 to further improve the reliability and uniformity of hysteresis characteristics. Since the entire surface of the friction surface 51 is in contact with the inner surface 20 as described above, the friction member 50 is not unevenly worn and the friction member 50 and the electronic accelerator pedal assembly 10 ) Is improved.

Referring to FIGS. 2 and 6, the sensor module 70 includes a sensor module 70 for detecting a rotation angle of the pedal arm 30 about a rotation axis RC, A sensor module housing, a printed circuit board (PCB) 77, and a semiconductor chip package 81. In addition, the electronic accelerator pedal assembly 10 further includes a pedal arm engagement projection 60 and a permanent magnet 64.

The sensor module housing has a base 74 and a cover 71 which are coupled to each other to form an internal space and are arranged to overlap with the cover 12 of the pedal housing 11. [ The PCB 77 is fixed to the base 74 and disposed in the internal space of the sensor module housing. An electronic throttle valve (not shown) outside the sensor module 70 is mounted on one side of the PCB 77, And a connector 78 for transmitting and receiving electric signals.

FIG. 7 is an electrical block diagram of a pair of Hall sensors formed in the semiconductor chip package of FIG. 6. Referring to FIGS. 6 and 7 together, the semiconductor chip package 81 includes a so- And a dual hall sensor integrated circuit (83, 84). In other words, the semiconductor chip package 81 includes a pair of hall sensors 83 and 84 for sensing the rotation angle of the pedal arm 30 about the rotation axis RC in a non-contact manner do. The semiconductor chip package 81 is mounted on the PCB 77 facing the cover 71 of the sensor module housing and mounted on the PCB 77 so as to be positioned on the rotation axis RC.

2, 6, and 7, the pedal arm fastening protrusion 60 has a cross-sectional shape and is parallel to the X-axis so as to be fitted into the fastening groove 34 of the pedal arm 30 And extend along the rotation axis RC. A through hole 13 is formed in the cover 12 of the pedal housing 11 so that the pedal arm fastening protrusion 60 can penetrate therethrough and a through hole 72 is formed in the cover 71 of the sensor module housing. A permanent magnet mounting portion 62 is provided at one end of a pedal arm fastening protrusion 60 facing the semiconductor chip package 81 and a permanent magnet 64 Is fixedly seated. The semiconductor chip package 81 with the pair of hall sensors 83 and 84 and the permanent magnet 64 are located very close to each other and without the mechanical connection between the two, , 84) can sensitively detect the change in the magnetic field of the permanent magnet (64).

With this configuration, when the pedal arm 30 rotates about the rotation axis RC, the pedal arm fastening protrusion 60 and the permanent magnet 64 fixed to the pedal arm fastening protrusion 60 rotate in the same rotational direction as the pedal arm 30, So that the magnetic field around the semiconductor chip package 81 changes. The pair of hall sensors 83 and 84 provided in the semiconductor chip package 81 detects the change of the magnetic field and the electronic throttle valve is connected to the pair of hall sensors 83 and 84 The pedal arm 30 can be accurately detected in terms of the rotational direction and the rotational angle of the pedal arm 30 through an output voltage generated according to the rotational direction and the rotational angle of the pedal arm 30, Is determined.

However, in order to prevent a malfunction due to an error of the pair of hall sensors 83 and 84, two kinds of output voltage values generated from the pair of hall sensors 83 and 84 are set to a preset error , The detection signals of the pair of hall sensors 83 and 84 are regarded as errors. Therefore, it is possible to precisely measure the rotational direction and the rotational angle of the pedal arm 30, and to prevent an accident such as an accident that may occur due to an abnormal change in the opening amount of the electronic throttle valve due to malfunction of the hall sensors 83, 84 Can be prevented.

As described above, since the electronic accelerator pedal assembly 10 uses a pair of hall sensors disposed close to the permanent magnet 64 coaxially rotating with the pedal arm 30, The rotation direction and the rotation angle of the arm 30 can be accurately measured and the durability is improved because there is no damage or wear due to the contact of the sensor for measuring the rotation angle. It is also possible to mount the semiconductor chip package 83 including the pair of hall sensors 83 and 84 integrally without having to mount and align the pair of hall sensors 83 and 84 on the PCB 77 of the sensor module 70, (81) is mounted on the PCB (77), the production process is simplified, and productivity is improved and defects are reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: Electronic accelerator pedal assembly 11: Pedal housing
20: inner side 30: pedal arm
31: pedal pad 37: curved protrusion of the pedal arm
40: Friction arm 47: Curved projection of friction arm
50: Friction member 55, 56: First and second springs
70: sensor module 81: semiconductor chip package

Claims (9)

delete delete A pedal housing having an inner side extending along a curved path; A pedal arm having a pedal pad at one end of which is rotatably coupled to the pedal housing with respect to the pedal housing and a pedal pad at the other end of which is pressed by foot; A friction member having a friction surface contacting the inner surface of the pedal housing; And a friction arm connecting the friction member and the pedal arm,
At least one of the pedal arm and the frictional arm has a curved surface protrusion protruding in a curved surface toward the counterpart and is contacted to the counterpart via the curved surface protrusion,
Wherein when the pedal arm rotates clockwise and counterclockwise with respect to the pedal housing, contact between the pedal arm and the friction arm via the curved surface projection is maintained, and friction The arm pressing the friction member toward the inner side of the pedal housing,
Wherein the friction arm is rotatably connected to the pedal arm with respect to the pedal arm,
Wherein the pedal arm has a supporting lever portion for restricting a rotatable angle of the friction arm and supporting the friction arm,
Wherein the frictional arm is formed with a lever-receiving recess formed to receive the support lever. The method of claim 3,
The pedal arm is elastically biased in a direction opposite to a rotating direction when the pedal pad is pressed,
Wherein the means for elastically biasing the pedal arm is at least one coil spring for elastically pressing the friction arm within the pedal housing. 5. The method of claim 4,
Wherein the at least one coil spring is a pair of first and second coil springs,
The second coil spring is inserted into the first coil spring,
And a noise preventing member for preventing noise is interposed between the first coil spring and the second coil spring. 5. The method of claim 4,
Wherein the friction arm includes a spring support portion for supporting one end of the at least one coil spring and a friction member connection portion that is bent and extended in the direction of approaching the at least one coil spring at the spring support portion and connected to the friction member ≪ / RTI > A pedal housing having an inner side extending along a curved path; A pedal arm having a pedal pad at one end of which is rotatably coupled to the pedal housing with respect to the pedal housing and a pedal pad at the other end of which is pressed by foot; A friction member having a friction surface contacting the inner surface of the pedal housing; And a friction arm connecting the friction member and the pedal arm,
At least one of the pedal arm and the frictional arm has a curved surface protrusion protruding in a curved surface toward the counterpart and is contacted to the counterpart via the curved surface protrusion,
Wherein when the pedal arm rotates clockwise and counterclockwise with respect to the pedal housing, contact between the pedal arm and the friction arm via the curved surface projection is maintained, and friction The arm pressing the friction member toward the inner side of the pedal housing,
The friction member is rotatably connected to the friction arm,
Wherein the entire friction surface of the friction member continues to contact the inner circumferential surface of the pedal housing when the pedal arm rotates relative to the pedal housing. 8. The method according to any one of claims 3 to 7,
A semiconductor chip package having a pair of Hall sensors for sensing the rotational angle of the pedal arm in a non-contact manner without mechanical contact with the displacement of the pedal pad; And an electronic accelerator pedal assembly. 9. The method of claim 8,
A pedal arm fastening protrusion coupled to the pedal arm and coaxially rotated when the pedal arm is rotated; And a permanent magnet mounted on an end of the pedal arm fastening protrusion and coaxially rotated when the pedal arm rotates, the permanent magnet being disposed to face the semiconductor chip package.
KR1020160019596A 2016-02-19 2016-02-19 Electrical acceleration pedal assembly KR101659342B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109760514A (en) * 2019-03-05 2019-05-17 威廉姆斯(苏州)控制系统有限公司 A kind of electronic accelerator pedal board-like in suspension
CN110139771A (en) * 2016-12-28 2019-08-16 株式会社三国 Accelerator pedal device
CN113226824A (en) * 2018-12-20 2021-08-06 株式会社电装 Accelerator device
US11752866B2 (en) 2021-08-18 2023-09-12 Hyundai Motor Company Organ-type electronic pedal device

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KR100930662B1 (en) 2009-10-27 2009-12-09 주식회사 동희산업 Apparatus for generating hysteresis of electronic accelerator pedal
KR20120129216A (en) * 2011-05-19 2012-11-28 주식회사 트루윈 Apparatus for hysteresis of electronic accelerator pedal
KR20130065422A (en) * 2011-12-09 2013-06-19 현대자동차주식회사 Clutch pedal device for vehicle
KR20130074809A (en) * 2011-12-16 2013-07-05 주식회사 에이치에스엘 일렉트로닉스 Hysteresis generating pedal apparatus

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KR100930662B1 (en) 2009-10-27 2009-12-09 주식회사 동희산업 Apparatus for generating hysteresis of electronic accelerator pedal
KR20120129216A (en) * 2011-05-19 2012-11-28 주식회사 트루윈 Apparatus for hysteresis of electronic accelerator pedal
KR20130065422A (en) * 2011-12-09 2013-06-19 현대자동차주식회사 Clutch pedal device for vehicle
KR20130074809A (en) * 2011-12-16 2013-07-05 주식회사 에이치에스엘 일렉트로닉스 Hysteresis generating pedal apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110139771A (en) * 2016-12-28 2019-08-16 株式会社三国 Accelerator pedal device
CN113226824A (en) * 2018-12-20 2021-08-06 株式会社电装 Accelerator device
CN109760514A (en) * 2019-03-05 2019-05-17 威廉姆斯(苏州)控制系统有限公司 A kind of electronic accelerator pedal board-like in suspension
US11752866B2 (en) 2021-08-18 2023-09-12 Hyundai Motor Company Organ-type electronic pedal device

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