KR20210000112A - Clutch pedal apparatus for electronic clutch - Google Patents

Abstract

The present invention relates to a clutch pedal device for an electronic clutch system. More particularly, the present invention relates to a clutch pedal device for an electronic clutch system, which is configured such that the sum of a compressive elastic force of a main spring (40) and a compressive elastic force of a sub spring (50) is generated as a response force (reaction force) of a clutch pedal (30) when a driver operates by pressing the clutch pedal (30), and when the clutch pedal (30) returns to the rear as the operation is released from the clutch pedal (30), a value obtained by subtracting a frictional force of a friction plate (60) from the sum of a restoring force of the main spring (40) and a restoring force of the sub spring (50) acts as a return force of the clutch pedal (30).

Description

Clutch pedal device for electronic clutch system {CLUTCH PEDAL APPARATUS FOR ELECTRONIC CLUTCH}

The present invention relates to a clutch pedal device for an electronic clutch system, and more particularly, when the clutch pedal is operated, it generates a pedal effort (reaction force) equivalent to that of the hydraulic clutch system, and when the clutch pedal is returned, the return force is reduced. It is a technology related to a clutch pedal device for an electronic clutch system configured to slow the return speed and force the clutch pedal to rotate forward in the event of a collision.

A typical manual transmission vehicle includes a device called a clutch, and the clutch device is installed between the flywheel and the input shaft of the transmission to perform the function of controlling the power of the engine transmitted to the transmission as necessary.

When shifting, the driver first steps on the clutch pedal and disconnects the clutch device provided in the vehicle, then operates the shift lever to shift to the desired gear level, and then releases the clutch pedal. Shifting is completed by reconnecting the clutch.

A hydraulic clutch system equipped with a clutch master cylinder and a clutch release cylinder between the clutch pedal and the clutch device is generated by the spring force provided on the clutch pedal and the clutch master cylinder and the clutch release cylinder when the driver operates by stepping on the clutch pedal. The combined hydraulic pressure becomes the pedal effort (reaction force).

On the other hand, the electronic clutch system has the advantage of significantly reducing weight and cost compared to the hydraulic clutch system as it does not use a mechanical configuration that uses hydraulic pressure. When the driver steps on the clutch pedal to shift , The pedal sensor provided in the clutch pedal detects the degree of stepping on the clutch pedal (rotation angle), and transmits the detected value as an electrical signal to the control unit (a clutch controller, an electronic control device for operating the clutch), and the control unit Controls the operation of actuators (devices that operate to regulate clutches, DC motors, etc.) by automatically calculating the optimal clutch operation time that is most suitable for the vehicle condition by receiving various signals such as sensor signals and engine speed, etc. It is a configuration that operates so that the clutch device is connected or disconnected by the operation of

Therefore, compared to the hydraulic clutch system, the electronic clutch system does not use the clutch master cylinder and the clutch release cylinder that generate hydraulic pressure, so only the spring force provided in the clutch pedal is used when the driver steps on the clutch pedal to operate. It acts as a final pedaling force (reaction force), and for this reason, when the driver operates the clutch pedal of the electronic clutch system, the operation is lighter than that of the hydraulic type, so there is a disadvantage of feeling a sense of difference.

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

Korean Patent Publication No. 10-2006-0079685

In the present invention, in the electronic clutch system in which the operation of the clutch device proceeds by using an electric signal generated when the clutch pedal is operated, when the clutch pedal is operated, it generates a pedal force (reaction force) equal to that of the hydraulic clutch system. The generation of hysteresis is induced by reducing the return speed while reducing the return force when the clutch pedal is returned, and by forcibly rotating the clutch pedal forward in the event of a collision. Its purpose is to provide a clutch pedal device for an electronic clutch system that can prevent the driver's injury due to the clutch pedal as much as possible.

The clutch pedal device for an electronic clutch system of the present invention for achieving the above object includes: a clutch pedal rotatably coupled to a pedal member about a hinge bolt; A main spring and a sub-spring that are compressed when the clutch pedal is rotated forward as the clutch pedal is operated to accumulate elastic force; A friction plate installed to be in contact with the clutch pedal and the sub-spring and generating a friction force when the clutch pedal rotates; It is characterized in that the sum of the compression elastic force of the main spring and the compression elastic force of the sub-spring generated when the clutch pedal rotates forward becomes a foot force (reaction force) of the clutch pedal.

When the clutch pedal rotates backward by the restoring force of the main spring and the sub-spring as the operation force is released from the clutch pedal rotated forward, the restoring force of the main spring and the restoring force of the sub-spring are summed, minus the friction force of the friction plate. The value becomes the return force of the clutch pedal; When the clutch pedal rotates backward, hysteresis is generated as the friction force of the friction plate acts as a resistance value.

A pedal protrusion protruding from an upper end of the clutch pedal; And a main spring rod which penetrates through the member bracket provided in the pedal member and the main spring to be coupled to the pedal protrusion and moves linearly when the clutch pedal is rotated. Both ends of the main spring are installed to be supported by a spring seat and a member bracket coupled to an end of the main spring rod.

A permanent magnet coupled to the main spring rod; And a pedal switch coupled to the pedal member and having a PCB facing the permanent magnet. The permanent magnet is changed in position by a main spring rod that moves linearly when the clutch pedal rotates; The PCB is characterized in that it is configured to output a signal to a clutch controller by detecting a change in magnetic flux according to a change in the position of the permanent magnet.

The member bracket is composed of two brackets formed to be vertically spaced apart from one side of the pedal member; The permanent magnet is coupled to the main spring rod and installed so as to be positioned between the two member brackets; The cover is fixedly installed using the two member brackets, and the permanent magnet is covered by the cover.

A reverse rotation bracket rotatably coupled with respect to the pedal member with the left and right sides of the pedal member located on the upper front side facing the pedal protrusion in the pedal member; Further comprising a sub-spring rod installed to be coupled to the friction plate through the reverse rotation bracket and the sub-spring; Both ends of the sub-spring are installed to be supported by the reverse rotation bracket and the friction plate; The pedal protrusion is characterized in that it is installed to contact the rear surface of the friction plate.

An upper bracket fixedly coupled to an upper end of the pedal member; Further comprising a cowl bracket detachably coupled to the upper bracket by the load at the time of collision; One end of the sub-spring rod is configured to be positioned at the front side of the cowl bracket after protruding upward of the pedal member.

The rear surface of the friction plate in contact with the pedal protrusion is characterized in that it is formed as an arc-shaped curved surface protruding toward the rear so as to impart a sense of theft when the clutch pedal is operated.

A pedal stopper that regulates a full stroke when the clutch pedal rotates forward is coupled to a lower end of the pedal member.

The lower end of the friction plate is composed of a protrusion protruding rearward; When the clutch pedal rotates to the rear and returns, the pedal protrusion is caught on the protrusion and the movement is restrained, thereby regulating the rear return position of the clutch pedal.

The spring seat is positioned to be spaced apart from the bottom of the member bracket; A member stopper coupled to one side of the pedal member is positioned below the spring seat; As the shape of the pedal member collapses in the event of a collision, the main spring rod moves upward when the member stopper presses the spring seat from the bottom to the top; When the main spring rod is moved upward, the clutch pedal connected to the main spring rod through the pedal protrusion is forcibly rotated forward around the hinge bolt.

When the shape of the pedal member collapses in the event of a collision and the cowl bracket is separated from the upper bracket, the cowl bracket contacts the end of the subspring rod protruding upward of the pedal member to press the subspring rod; The reverse rotation bracket and the friction plate including the sub-spring rod rotate with respect to the pedal member around the hinge pin by pressing the cowl bracket; When the friction plate is rotated, the clutch pedal that has been in contact with the friction plate through the pedal protrusion is forcibly rotated forward around the hinge bolt.

The clutch pedal device for an electronic clutch system according to the present invention is the sum of the compressive elastic force of the main spring and the compressive elastic force of the sub-spring when the driver operates by stepping on the clutch pedal in the clutch pedal device for an electronic clutch system that does not use a hydraulic mechanism. This is a configuration that becomes the pedal effort (reaction force) of this clutch pedal. Through this, as compared to the hydraulic clutch system, it generates the same level of pedal effort (reaction force). It works.

In addition, the present invention is the sum of the restoring force of the main spring and the restoring force of the sub-spring when the clutch pedal rotates to the rear by the restoring force of the main spring and the sub-spring as the operation force is released by stepping on the clutch pedal rotated forward The value subtracting the frictional force of the friction plate is the structure that acts as the return force of the clutch pedal.In particular, the frictional force generated by the contact between the pedal protrusion of the clutch pedal and the friction plate acts as a resistance value, reducing the return force of the clutch pedal and returning. As the speed can be slowed down, it is possible to prevent the driver's ankle bent caused by the clutch pedal, and furthermore, there is an effect of inducing the occurrence of hysteresis.

In addition, the present invention is a configuration in which the main spring rod and the clutch pedal connected through the friction plate and the pedal protrusion are forcibly rotated forward when the shape of the pedal member collapses due to a large load generated in a collision accident. There is an effect that can prevent as much as possible injuries to the legs of the child (shin strike, ankle break, etc.).

1 to 2 are an exploded perspective view and a combined perspective view of a clutch pedal device for an electronic clutch system according to the present invention,
FIG. 3 is a view of the upper bracket and the cowl bracket removed from FIG. 2;
4 to 5 are a right side view and a left side view of FIG. 2,
6 is a view in a state in which the pedal member is removed from FIG. 3;
7 is a left perspective view of FIG. 6,
8 is a view of a full stroke state of the clutch pedal;
9 is a view of a state before and after the operation of the clutch pedal;
10 is a front view of FIG. 9,
11 to 12 are views for explaining a reverse rotation state of a clutch pedal in a collision accident.

Hereinafter, a clutch pedal device for an electronic clutch system according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The clutch pedal device for an electronic clutch system according to the present invention includes a pedal member 10 fixedly coupled to the dash panel 1 under the driver's seat as shown in FIGS. 1 to 12, and a hinge on the pedal member 10. It includes a clutch pedal 30 coupled to be rotatable in the front-rear direction via the bolt 21 and the nut 22.

The pedal member 10 is formed in a structure in which the front side is coupled with the dash panel 1, the left and right side surfaces extending from the front to the rear are formed in parallel, and open in the rear and vertical directions.

As the hinge bolts 21 sequentially pass through the left and right sides of the pedal member 10 and the hinge pipe 31 of the clutch pedal 30 and are then coupled with the nut 22, the clutch pedal 30 becomes the hinge bolt 21 ) To the center of the pedal member 10 is rotatably coupled in the front-rear direction.

The hinge pipe 31 is coupled to the upper end of the clutch pedal 30 and the pads 32 operated by the driver are coupled to the lower end, and the left and right ends of the hinge pipe 31 eliminate frictional interference with the pedal member 10 For the hinge bush (33) is coupled.

In addition, a pedal protrusion 34 is formed to protrude forward at an upper end of the clutch pedal 30.

The clutch pedal device according to the present invention is a configuration for generating a foot force (reaction force) when the driver steps on the clutch pedal 30 to operate (when the clutch pedal rotates forward around the hinge bolt), and the clutch pedal It has a configuration that implements hysteresis when returning to (30) (when rotating backward).

To this end, the present invention is a main spring 40 and a sub-spring 50 that accumulate elastic force while being compressed when the clutch pedal 30 rotates forward as the clutch pedal 30 is operated, the clutch pedal 30 and It is installed to be in contact with the sub-spring 50 and includes a friction plate 60 that generates frictional force when the clutch pedal 30 rotates.

The main spring 40 and the sub spring 50 may be composed of a coil spring made of a rigid body.

A pedal protrusion 34 is formed to protrude forward at the upper end of the clutch pedal 30, and the upper end of the main spring rod 70 is fixedly coupled to the pedal protrusion 34.

The main spring rod 70 is bent in an L shape, and the upper end extending in the left and right direction is coupled to the pedal protrusion 34, and the lower part extending in the vertical direction is a member bracket 11 formed on the pedal member 10. ) Is movable in the vertical direction, and the main spring 40 is fitted in the lower part extending in the vertical direction, and the spring sheet 71 is integrally coupled to the end of the lower part extending in the vertical direction.

The member bracket 11 is formed to protrude from one side of the pedal member 10 to the inside of the pedal member 10, and the member bracket 11 is composed of two brackets spaced up and down, among the two brackets. A configuration in which the main spring 40 is installed below the member bracket 11 located at the bottom. Therefore, the upper end of the main spring 40 is the member bracket 11 located at the bottom of the two member brackets 11 It is supported on the bottom surface, and the lower end of the main spring 40 has a structure installed so as to be supported on the upper surface of the spring sheet 71.

When the clutch pedal 30 rotates forward around the hinge bolt 21 as the driver operates by stepping on the clutch pedal 30, the main spring rod 70 becomes a member bracket by rotation of the pedal protrusion 34. 11) is guided and linearly moves upward, and at this time, the main spring 40 is compressed and accumulates elastic force, and the compressive elastic force of the main spring 40 generated at this time is the pedal force when the clutch pedal 30 is operated ( Reaction force, operation force).

And, when the driver releases the operating force from the clutch pedal 30 rotated forward (when the foot is removed from the clutch pedal), the clutch pedal 30 rotates backward by the restoring force of the main spring 40 to return to the initial position. do.

In addition, in the present invention, the reverse rotation bracket 80 is coupled to the upper front side facing the pedal protrusion 34 in the pedal member 10, and the sub-spring passes through the reverse rotation bracket 80 so that it can be moved forward and backward. Rod 90 is installed.

The reverse rotation bracket 80 is positioned so as to extend in the left and right directions within the pedal member 10, and the reverse rotation bracket 80 should have a structure that rotates relative to the pedal member 10 when a collision occurs. The left and right sides of the bracket 80 are preferably coupled to the left and right sides of the pedal member 10 via a hinge pin 81, but a coupling structure capable of rotating in various ways such as welding is also possible.

The sub-spring rod 90 is formed so that the lower end and the upper end extend in the front-rear direction, the middle part connecting the upper and lower ends is formed to extend up and down, and the lower end is coupled by passing through the reverse rotation bracket 80 so as to be movable in the front and rear And, the middle portion and the upper end has a structure installed to protrude upward of the pedal member (10).

The lower rear end of the sub-spring rod 90 that has passed through the reverse rotation bracket 80 is fixedly coupled to the front of the friction plate 60 after passing through the sub-spring 50, and thereby the sub-spring 50 Both ends of the front and rear are installed to be supported by the reverse rotation bracket 80 and the friction plate 60, and the pedal protrusion 34 of the tuckle pedal 30 is installed to contact the rear surface 61 of the friction plate 60. do.

On the other hand, the rear surface 61 of the friction plate 60 in contact with the pedal protrusion 34 is characterized in that it is formed as an arc-shaped curved surface protruding toward the rear so as to impart a sense of cut and operation when the clutch pedal 30 is operated. to be.

When the clutch pedal 30 rotates forward around the hinge bolt 21 as the driver operates by stepping on the clutch pedal 30, the end of the pedal protrusion 34 becomes the rear surface 61 of the friction plate 60 It rotates in contact with and, at this time, as the pedal protrusion 34 passes through the rear surface 61 of the friction plate 60 formed into an arc-shaped curved surface, the driver receives a sense of theft and operation, and in particular, the friction plate ( 60) linearly moves forward based on the reverse rotation bracket 80 together with the subspring rod 90, and at this time, the subspring 50 is compressed and accumulates elastic force. The compressive elastic force becomes a pedal force (reaction force, operation force) when the clutch pedal 30 is operated.

And, when the driver releases the operating force from the clutch pedal 30 rotated forward (when the foot is removed from the clutch pedal), the clutch pedal 30 rotates backward by the restoring force of the main spring 40 and the subspring 50. So it returns to the initial position.

In the embodiment according to the present invention, when the driver operates by stepping on the clutch pedal 30 (when the clutch pedal rotates forward), the sum of the compression elastic force of the main spring 40 and the compression elastic force of the sub-spring 50 is the clutch It is a configuration that becomes the foot force (reaction force) of the pedal 30.

And, as the operation force is released by stepping on the clutch pedal 30 rotated forward, the clutch pedal 30 rotates to the rear by the restoring force of the main spring 40 and the subspring 50 and returns to the main spring ( 40) and a value obtained by subtracting the frictional force of the friction plate 60 from the sum of the restoring force of 40) and the restoring force of the subspring 50 acts as the returning force of the clutch pedal 30. Therefore, the present invention is the clutch pedal 30 When returning to the rear, the friction force generated by contact between the pedal protrusion 34 and the friction plate 60 acts as a resistance value, thereby generating hysteresis.

A general clutch pedal device for an electronic clutch system generates pedal force (reaction force) with only one spring force provided in the clutch pedal device when the driver steps on the clutch pedal. As the (reaction force) did not include hydraulic pressure, there was a discomfort due to the feeling of heterogeneity.

However, in the clutch pedal device for an electronic clutch according to the present invention, the sum of the compressive elastic force of the main spring 40 and the compressive elastic force of the subspring 50 generated when the clutch pedal 20 is operated is the value of the clutch pedal 30. It is a configuration that becomes a footing force (reaction force), and as compared to a hydraulic clutch system, an equal level of footing force (reaction force) is generated, thereby eliminating the occurrence of heterogeneity, which greatly helps improve marketability.

In the embodiment according to the present invention, a pedal stopper 100 that regulates a full stroke when the clutch pedal 30 rotates forward is coupled to a lower portion of the pedal member 10, and the friction plate 60 The lower end is composed of a protrusion 62 protruding to the rear, and when the clutch pedal 30 rotates to the rear and returns, the pedal protrusion 34 is caught by the protrusion 62 so that the movement is restricted, the clutch pedal 30 ), the rear return position is regulated.

That is, the pedal stopper 100 serves as a front stopper that regulates the forward rotation of the clutch pedal 30, and the protrusion 62 of the friction plate 60 is a pedal protrusion when the clutch pedal 30 rotates backward. It acts as a rear stopper that regulates rearward rotation through contact with 34).

In addition, the embodiment according to the present invention is a permanent magnet 110 coupled to the main spring rod 70, and a printed circuit board (PCB) 120 coupled to the pedal member 10 and facing the permanent magnet 110 It further includes a pedal switch 130 having a.

The permanent magnet 110 is fixedly coupled to the lower part extending in the vertical direction from the main spring rod 70, and thus, when the main spring rod 70 moves in the vertical direction by the rotation of the clutch pedal 30, the permanent magnet ( 110) also moves up and down, and the position changes.

The permanent magnet 110 is installed so as to be located between the two member brackets 11 in the pedal member 10, and thus the pedal switch 130 is also located on the pedal member 10 so as to be located between the two member brackets 11 It is fixedly coupled, the PCB 120 provided on the pedal switch 130 is positioned so as to face the permanent magnet 110.

The PCB 120 is configured to be electrically connected to a power device such as a battery through a wire.

When the clutch pedal 30 is rotated by the driver's operation, the permanent magnet 110 moves up and down together with the main spring rod 70, and at this time, the PCB 120 is changed according to the position of the permanent magnet 110. A change in magnetic flux is detected and a signal is output to the clutch controller 140, and the clutch controller 140 receives the output signal from the PCB 120 to control the operation of the clutch actuator 150, and the clutch actuator 150 As the clutch 160 is blocked and connected by the operation of, clutch control is electronically performed.

The clutch 160 of the vehicle is the same as a general configuration including a flywheel connected to a crankshaft, a clutch plate, a pressure plate, a clutch spring, a release lever, a release bearing, a release fork, and the like, and thus a detailed description thereof will be omitted.

In an embodiment according to the present invention, a permanent magnet 110, which is one of the sensor mechanisms of the clutch pedal 30, is attached to the main spring rod 70, which is one of the mechanisms that generates an operating force when the driver operates the clutch pedal 30. As a combined configuration, there is an advantage of significantly reducing cost as there is no need to provide a separate installation structure.

In addition, the embodiment according to the present invention is a configuration in which the permanent magnet 110 and the PCB 120 can serve as an integrated sensor capable of performing all the functions of a conventional clutch switch, ignition lock switch, and stroke sensor for EPB, This has the advantage of significantly reducing cost.

In addition, the present invention is a configuration in which the cover 170 is fixedly installed using the two member brackets 11 and covers the permanent magnet 110 by using the cover 170, and the permanent magnet 110 ) Can be prevented through the cover 170.

The embodiment according to the present invention further includes a configuration capable of preventing a driver's leg injury due to the clutch pedal 30 as much as possible when a collision occurs.

To this end, the member stopper 180 is coupled to one side of the pedal member 10 on which the member bracket 11 is formed, and the member stopper 180 is a member bracket 11 located at the bottom of the two member brackets 11 It is installed to be located on the lower side of the.

In addition, the upper bracket 190 is fixedly coupled to the upper end of the pedal member 10 through welding, and the cowl bracket 200 is coupled to the upper bracket 190 so as to be detachable by the load at the time of collision.

A slot opened rearward is formed in the cowl bracket 200, and as the bolt and nut are fastened through the slot, the cowl bracket 200 may be separated from the upper bracket 190 by the load at the time of collision. .

Alternatively, the upper bracket 190 and the cowl bracket 200 may be coupled through welding to separate each other when a collision occurs.

The upper end of the sub-spring rod 90 protruding upward of the pedal member 10 is configured to be located at the front side of the cowl bracket 200.

Therefore, when a large load F1 as shown in FIG. 11 is input in a direction inclined toward the rear upper side from the lower front side of the dash panel 10 due to an offset collision, a small overlap collision, and a neuronal offset collision, the pedal member 10 ) As the shape collapses, the member stopper 180 moves upward and presses the spring seat 71 from the bottom to the top, and the main spring rod 70 moves upward (arrow M1), and the main spring The clutch pedal 30 connected through the main spring rod 70 and the pedal protrusion 34 by the upward movement of the rod 70 is forcibly rotated forward around the hinge bolt 21 (arrow R1), In the event of an accident, the clutch pedal 30 can be forcibly reversely rotated forward, thereby preventing the driver's leg injury due to the clutch pedal 30 as much as possible.

As another example, as the shape of the pedal member 10 collapses due to a large load F2 generated during a collision as shown in FIG. 12, the cowl bracket 200 moves from the upper bracket 190 to the rear as the pedal member 10 moves backward. When separated (arrow M2), the cowl bracket 200 contacts the upper end of the sub-spring rod 90 protruding upward of the pedal member 10 to press the sub-spring rod 90.

When the sub-spring rod 90 is pressed by the cowl bracket 200, the reverse rotation bracket 80 including the sub-spring rod 90 is counterclockwise with respect to the pedal member 10 with the hinge pin 81 as the center. It rotates in the direction (arrow R2), and the friction plate 60 coupled with the subspring rod 90 also rotates counterclockwise, and when the friction plate 60 rotates, the friction plate ( The clutch pedal 30, which was in contact with 60), is forcibly rotated forward around the hinge bolt 21 (arrow R3), through which the clutch pedal 30 can be forcibly rotated forward in case of an accident. Accordingly, there is an advantage of preventing the driver's leg injury due to the clutch pedal 30 as much as possible.

As described above, in the embodiment according to the present invention, in the clutch pedal device for an electronic clutch system that does not use a hydraulic mechanism, when the driver operates by stepping on the clutch pedal 30, the compressive elastic force of the main spring 40 and the subspring ( 50) is a configuration in which the combined compression elastic force of the clutch pedal 30 becomes the pedal effort (reaction force) of the clutch pedal 30. Through this, as compared to the hydraulic clutch system, the same level of pedal effort (reaction force) is generated. By being able to eliminate it, there is an advantage that greatly helps in improving the product quality.

In addition, in the present invention, as the operation force is released by stepping on the clutch pedal 30 rotated forward, the clutch pedal 30 rotates backward by the restoring force of the main spring 40 and the subspring 50 and returns. The value obtained by subtracting the frictional force of the friction plate 60 from the sum of the restoring force of the main spring 40 and the restoring force of the sub-spring 50 acts as the return force of the clutch pedal 30, and in particular, the clutch pedal 30 The frictional force generated by the contact between the pedal protrusion 34 and the friction plate 60 acts as a resistance value, thereby reducing the return force of the clutch pedal 30 and slowing the return speed. It is possible to prevent the driver's ankle bent due to the phenomenon, and further, there is an advantage of inducing the occurrence of hysteresis.

In addition, the present invention is the clutch pedal 30 connected through the main spring rod 70 and the friction plate 60 and the pedal protrusion 34 when the shape of the pedal member 10 collapses due to a large load generated in a crash accident. As a configuration that is forcibly rotated forward, there is an advantage of preventing the driver's leg injury (shin strike, ankle break, etc.) due to the clutch pedal 30 as much as possible.

Although the present invention has been illustrated and described with reference to specific embodiments, it is understood in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the present invention provided by the following claims. It will be obvious to a person of ordinary knowledge.

10-Pedal member 11-Member bracket
21-hinge bolt 22-nut
30-Clutch pedal 34-Pedal protrusion
40-Main spring 50-Sub spring
60-friction plate 61-rear side
62-Protrusion 70-Main spring rod
80-Reverse rotation bracket 81-Hinge pin
90-Subspring rod 100-Pedal stopper
110-permanent magnet 120-PCB
130-Pedal switch 140-Clutch controller
150-clutch actuator 160-clutch
170-cover 180-member stopper
190-Upper bracket 200-Cowl bracket

Claims (12)

A clutch pedal rotatably coupled to the pedal member around a hinge bolt;
A main spring and a sub-spring that are compressed when the clutch pedal rotates forward as the clutch pedal is operated to accumulate elastic force;
A friction plate installed to be in contact with the clutch pedal and the sub-spring and generating a friction force when the clutch pedal rotates;
A clutch pedal device for an electronic clutch system, characterized in that the sum of the compression elastic force of the main spring and the compression elastic force of the sub-spring generated when the clutch pedal rotates forward becomes a foot force (reaction force) of the clutch pedal. The method according to claim 1,
When the clutch pedal rotates to the rear by the restoring force of the main spring and the sub-spring as the operating force is released from the clutch pedal that rotates forward, the sum of the restoring force of the main spring and the restoring force of the sub-spring minus the frictional force of the friction plate. The value becomes the return force of the clutch pedal;
A clutch pedal device for an electronic clutch system, characterized in that hysteresis is generated as the friction force of the friction plate acts as a resistance value when the clutch pedal rotates backward. The method according to claim 1,
A pedal protrusion protruding from an upper end of the clutch pedal; And
It is installed to be coupled to the pedal protrusion through the member bracket provided in the pedal member and the main spring, further comprising a main spring rod that moves linearly when the clutch pedal rotates;
The clutch pedal device for an electronic clutch system, wherein both ends of the main spring are installed to be supported by a spring seat and a member bracket coupled to an end of the main spring rod. The method of claim 3,
A permanent magnet coupled to the main spring rod; And
Further comprising a pedal switch coupled to the pedal member and having a PCB facing the permanent magnet;
The permanent magnet is changed in position by a main spring rod that moves linearly when the clutch pedal rotates;
The PCB is configured to output a signal to a clutch controller by detecting a change in magnetic flux according to a position change of a permanent magnet. The method of claim 4,
The member bracket is composed of two brackets formed to be vertically spaced apart from one side of the pedal member;
The permanent magnet is coupled to the main spring rod and installed so as to be positioned between the two member brackets;
Clutch pedal device for an electronic clutch system, characterized in that the cover is fixedly installed using the two member brackets and the permanent magnet is covered by the cover. The method of claim 3,
A reverse rotation bracket rotatably coupled with respect to the pedal member with the left and right sides of the pedal member located on the upper front side facing the pedal protrusion in the pedal member;
Further comprising a sub-spring rod installed to be coupled to the friction plate through the reverse rotation bracket and the sub-spring;
Both ends of the sub-spring are installed to be supported by the reverse rotation bracket and the friction plate;
The clutch pedal device for an electronic clutch system, wherein the pedal protrusion is installed to contact the rear surface of the friction plate. The method of claim 6,
An upper bracket fixedly coupled to an upper end of the pedal member;
Further comprising a cowl bracket detachably coupled to the upper bracket by the load at the time of collision;
One end of the sub-spring rod protrudes upward from the pedal member, and is configured to be positioned at a front side of the cowl bracket. The method of claim 6,
Clutch pedal device for an electronic clutch system, characterized in that the rear surface of the friction plate in contact with the pedal protrusion is formed as an arcuate curved surface protruding toward the rear so as to impart a sense of theft when the clutch pedal is operated. The method according to claim 1,
A clutch pedal device for an electronic clutch system, characterized in that a pedal stopper that regulates a full stroke when the clutch pedal rotates forward is coupled to a lower end of the pedal member. The method of claim 6,
The lower end of the friction plate is composed of a protrusion protruding rearward;
The clutch pedal apparatus for an electronic clutch system, characterized in that when the clutch pedal rotates backward and returns, the pedal protrusion is caught on the protrusion and the movement is restrained, so that the rear return position of the clutch pedal is regulated. The method of claim 3,
The spring seat is positioned to be spaced apart from the bottom of the member bracket;
A member stopper coupled to one side of the pedal member is positioned below the spring seat;
As the shape of the pedal member collapses in the event of a collision, the main spring rod moves upward when the member stopper presses the spring seat from the bottom to the top;
Clutch pedal device for an electronic clutch system, characterized in that when the main spring rod is moved upward, the clutch pedal connected through the main spring rod and the pedal protrusion is forcibly rotated forward around the hinge bolt. The method of claim 7,
When the shape of the pedal member collapses in the event of a collision and the cowl bracket is separated from the upper bracket, the cowl bracket contacts the end of the subspring rod protruding upward of the pedal member to press the subspring rod;
The reverse rotation bracket and the friction plate including the sub-spring rod rotate with respect to the pedal member around the hinge pin by pressing the cowl bracket;
Clutch pedal device for an electronic clutch system, characterized in that when the friction plate is rotated, the clutch pedal that has been in contact with the friction plate through the pedal protrusion is forcibly rotated forward around the hinge bolt.

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