KR102719121B1 - Clutch pedal apparatus for electronic clutch - Google Patents

Abstract

The present invention relates to a clutch pedal device for an electronic clutch system, wherein when a driver steps on the clutch pedal (30) to operate the clutch pedal, the combined value of the compression elastic force of the main spring (40) and the compression elastic force of the sub spring (50) is generated as the reaction force of the clutch pedal (30), and when the clutch pedal (30) is released and the clutch pedal (30) returns to the rear, the combined value of the restoring force of the main spring (40) and the restoring force of the sub spring (50) minus the frictional force of the friction plate (60) acts as the returning force of the clutch pedal (30).

Description

{CLUTCH PEDAL APPARATUS FOR ELECTRONIC CLUTCH}

The present invention relates to a clutch pedal device for an electronic clutch system, and more specifically, to a technology for a clutch pedal device for an electronic clutch system configured to generate a pressure (reaction force) equivalent to that of a hydraulic clutch system when the clutch pedal is operated, reduce the return force and slow the return speed when the clutch pedal is returned, and forcibly rotate the clutch pedal forward in the event of a collision.

A typical manual transmission vehicle includes a device called a clutch, which is installed between the flywheel and the input shaft of the transmission and functions to control the engine power transmitted to the transmission as needed.

When shifting gears, the driver first presses the clutch pedal to disconnect the clutch device installed in the vehicle, then operates the shift lever to shift to the desired gear, and then releases the clutch pedal to re-engage the clutch, thereby completing the shift.

A hydraulic clutch system having a clutch master cylinder and a clutch release cylinder between the clutch pedal and the clutch device generates a combined force of the spring force provided in the clutch pedal and the hydraulic pressure generated by the clutch master cylinder and the clutch release cylinder when the driver steps on the clutch pedal to operate it.

In contrast, the electronic clutch system has the advantage of greatly reducing weight and cost compared to the hydraulic clutch system because it does not use a mechanical configuration that utilizes hydraulic pressure. When the driver steps on the clutch pedal to shift gears, the pedal sensor provided on the clutch pedal detects the degree of depression (rotation angle) of the clutch pedal and transmits the detected value as an electrical signal to the control unit (clutch controller, electronic control unit for operating the clutch). The control unit receives various signals such as the signal of the pedal sensor and the engine speed, automatically calculates the optimal clutch operating time most suitable for the vehicle condition, and controls the operation of the actuator (a device that operates to engage the clutch, such as a DC motor), and the clutch device is configured to be connected or disconnected by the operation of the actuator.

Therefore, since the electronic clutch system does not use a clutch master cylinder and a clutch release cylinder that generate hydraulic pressure, compared to a hydraulic clutch system, when the driver steps on the clutch pedal, only the spring force provided in the clutch pedal acts as the final pressure (reaction force), and because of this, the driver feels a sense of incongruity when operating the clutch pedal of the electronic clutch system compared to the hydraulic clutch system because the operation is lighter.

The matters described as background technology above are only intended to enhance understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to prior art already known to those skilled in the art.

Republic of Korea Patent Publication No. 10-2006-0079685

The purpose of the present invention is to provide a clutch pedal device for an electronic clutch system in which, in an electronic clutch system in which the operation of the clutch device is performed by utilizing an electric signal generated when the clutch pedal is operated, a pressure (reaction force) equivalent to that of a hydraulic clutch system is generated when the clutch pedal is operated, thereby eliminating the occurrence of a foreign sensation, and when the clutch pedal is returned, the return force is reduced and the return speed is slowed, thereby inducing the occurrence of hysteresis, and in the event of a collision, the clutch pedal is forcibly rotated forward, thereby preventing injury to the driver caused by the clutch pedal to the greatest extent possible.

In order to achieve the above-described purpose, the clutch pedal device for an electronic clutch system of the present invention comprises: a clutch pedal rotatably connected to a pedal member about a hinge bolt; a main spring and a sub spring that accumulate elastic force by being compressed when the clutch pedal rotates forward as the clutch pedal is operated; a friction plate that is installed to be in contact with the clutch pedal and the sub spring and generates frictional force when the clutch pedal rotates; and is characterized in that the sum of the compression elastic force of the main spring and the compression elastic force of the sub spring that are generated when the clutch pedal rotates forward becomes the pressure (reaction force) of the clutch pedal.

When the operating force from the clutch pedal that has rotated forward is released, the clutch pedal rotates backward and returns by the restoring force of the main spring and the sub spring, and the value obtained by subtracting the frictional force of the friction plate from the sum of the restoring force of the main spring and the restoring force of the sub spring becomes the restoring force of the clutch pedal; and it is characterized in that hysteresis occurs as the frictional force of the friction plate acts as a resistance value when the clutch pedal rotates backward.

The clutch pedal further comprises a pedal projection formed to protrude from the upper portion of the pedal; and a main spring rod installed to penetrate the member bracket and main spring provided in the pedal member and to be combined with the pedal projection, and to move linearly when the clutch pedal is rotated; and the two ends of the main spring are characterized in that they are installed to be supported by a spring seat and member bracket coupled to the ends of the main spring rod.

A pedal switch further includes a permanent magnet coupled to the main spring rod; and a PCB coupled to the pedal member and facing the permanent magnet; wherein the permanent magnet has a position that is changed by the main spring rod that moves linearly when the clutch pedal is rotated; and the PCB is configured to detect a change in magnetic flux according to a change in the position of the permanent magnet and output a signal to a clutch controller.

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

The pedal member further comprises a reverse rotation bracket positioned at the front upper side facing the pedal protrusion and having left and right sides rotatably coupled to the pedal member with respect to the hinge pin as the center; a sub spring rod installed to penetrate the reverse rotation bracket and the sub spring and be coupled to the friction plate; both ends of the sub spring are installed to be supported by the reverse rotation bracket and the friction plate; and the pedal protrusion is characterized in that it is installed to be in contact with the rear surface of the friction plate.

An upper bracket fixedly connected to the upper end of the pedal member; further comprising a cowl bracket detachably connected to the upper bracket by a load at the time of a collision; and characterized in that one end of the subspring rod is configured to protrude upward from the pedal member and then be located toward the front of the cowl bracket.

The rear surface of the friction plate that comes into contact with the pedal projection is characterized by being formed as an arcuate surface that protrudes rearward to provide a sense of control when operating the clutch pedal.

The lower part of the above pedal member is characterized by a pedal stopper combined to regulate the full stroke when the clutch pedal is rotated forward.

The lower part of the above friction plate is configured with a projection protruding rearward; and when the clutch pedal is rotated rearward and returned, the pedal projection is caught on the projection and the movement is restricted, thereby regulating the rearward return position of the clutch pedal.

The above spring sheet is positioned spaced apart from the bottom of the member bracket; a member stopper coupled to one side of a pedal member is positioned below the spring sheet; when the shape of the pedal member collapses in a collision accident, the member stopper presses the spring sheet from the bottom to the top, causing the main spring rod to move upward; and when the main spring rod moves upward, the clutch pedal connected to the main spring rod through the pedal protrusion is forcibly rotated forward about 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 comes into contact with an end of a sub-spring rod protruding from the upper side of the pedal member to pressurize the sub-spring rod; the reverse-rotating bracket and the friction plate including the sub-spring rod rotate with respect to the pedal member about the hinge pin by the pressurization of the cowl bracket; and when the friction plate rotates, the clutch pedal, which was in contact with the friction plate through the pedal protrusion, is forcibly rotated forward about the hinge bolt.

The clutch pedal device for an electronic clutch system according to the present invention is configured such that when a driver steps on the clutch pedal in a clutch pedal device for an electronic clutch system that does not use a hydraulic mechanism, the sum of the compression elasticity of the main spring and the compression elasticity of the sub spring becomes the pressure (reaction force) of the clutch pedal, thereby generating a pressure (reaction force) at the same level as that of a hydraulic clutch system, thereby eliminating the occurrence of a foreign feeling, which greatly contributes to improving marketability.

In addition, the present invention is configured such that when the clutch pedal rotates forward and the operating force is released, the clutch pedal rotates backward by the restoring force of the main spring and the sub spring and returns, and the value obtained by subtracting the frictional force of the friction plate from the sum of the restoring force of the main spring and the restoring force of the sub spring acts as the returning force of the clutch pedal, and in particular, the frictional force generated by the contact between the pedal projection of the clutch pedal and the friction plate acts as a resistance value to reduce the returning force of the clutch pedal and slow down the returning speed, thereby preventing the phenomenon of the driver's ankle being bent by the clutch pedal, and furthermore, there is an effect of inducing the occurrence of hysteresis.

In addition, the present invention has a configuration in which the clutch pedal connected through the main spring rod, friction plate, and pedal projection is forcibly rotated forward when the shape of the pedal member collapses due to a large load generated in a collision accident, thereby having the effect of preventing the driver's leg injury (shin hit, ankle twist, etc.) caused by the clutch pedal to the greatest extent possible.

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

The clutch pedal device for an electronic clutch system according to the present invention includes a pedal member (10) fixedly connected to a dash panel (1) below a driver's seat as shown in FIGS. 1 to 12, and a clutch pedal (30) rotatably connected to the pedal member (10) in the forward and backward direction via a hinge bolt (21) and a nut (22).

The pedal member (10) is connected to the dash panel (1) at the front, and the left and right sides extending from the front to the rear are formed in parallel, and are formed in an open structure in the rear and up and down directions.

As the hinge bolt (21) sequentially penetrates the left and right sides of the pedal member (10) and the hinge pipe (31) of the clutch pedal (30) and is then combined with the nut (22), the clutch pedal (30) is structured to be rotatable in the forward and backward direction with respect to the pedal member (10) with the hinge bolt (21) as the center.

A hinge pipe (31) is attached to the upper part of the clutch pedal (30), a pad (32) that the driver operates with his foot is attached to the lower part, and a hinge bush (33) is attached to both left and right ends of the hinge pipe (31) to eliminate frictional interference with the pedal member (10).

Additionally, a pedal protrusion (34) is formed on the top of the clutch pedal (30) to protrude forward.

The clutch pedal device according to the present invention has a configuration for generating a reaction force when the driver steps on the clutch pedal (30) to operate it (when the clutch pedal rotates forward around the hinge bolt), and a configuration for implementing hysteresis when the clutch pedal (30) is returned (when it rotates backward).

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

The main spring (40) and sub spring (50) may be composed of rigid coil springs.

A pedal projection (34) is formed to protrude forward at the top of the clutch pedal (30), and the top of the main spring rod (70) is fixedly connected to the pedal projection (34).

The main spring rod (70) is bent into an L shape, and the upper end extending left and right is connected to the pedal projection (34), and the lower end extending up and down penetrates the member bracket (11) formed on the pedal member (10) so as to be able to move up and down. In addition, the main spring (40) is fitted to the lower end extending up and down, and the spring seat (71) is integrally connected to the end of the lower end extending up and down.

The member bracket (11) is formed to protrude inwardly from one side of the pedal member (10), and furthermore, the member bracket (11) is composed of two brackets spaced apart from each other vertically, and the main spring (40) is installed to be positioned below the member bracket (11) located at the lower side of the two brackets. Accordingly, the upper end of the main spring (40) is supported by the lower surface of the member bracket (11) located at the lower side of the two member brackets (11), and the lower end of the main spring (40) is installed to be supported by the upper surface of the spring seat (71).

As the driver steps on the clutch pedal (30) to operate, the clutch pedal (30) rotates forward around the hinge bolt (21), and the main spring rod (70) moves upward in a straight line guided by the member bracket (11) by the rotation of the pedal projection (34), and at this time, the main spring (40) is compressed and accumulates elastic force, and the compression elastic force of the main spring (40) generated at this time becomes the pressure (reaction force, operating force) when operating the clutch pedal (30).

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

In addition, the present invention has a reverse rotation bracket (80) coupled to the front upper side facing the pedal protrusion (34) of the pedal member (10), and a sub spring rod (90) installed so as to be able to move forward and backward through the reverse rotation bracket (80).

The reverse rotation bracket (80) is positioned to extend in the left and right directions within the pedal member (10), and the reverse rotation bracket (80) must have a structure that rotates with respect to the pedal member (10) in the event of a collision accident. To this end, it is preferable that the left and right sides of the reverse rotation bracket (80) be structured such that they are joined to the left and right sides of the pedal member (10) via a hinge pin (81), but a structure that can rotate by various methods such as welding is also possible.

The subspring rod (90) is formed so that the lower and upper ends extend in the forward and backward direction, the middle part connecting the upper and lower ends is formed so that it extends upward and downward, the lower end penetrates the reverse rotation bracket (80) so that it can move in the forward and backward direction, and the middle and upper ends are structured so that they protrude upward from the pedal member (10).

The lower rear end of the subspring rod (90) penetrating the reverse rotation bracket (80) is fixedly connected to the front of the friction plate (60) after penetrating the subspring (50), so that the front and rear ends of the subspring (50) are supported and installed on the reverse rotation bracket (80) and the friction plate (60), and the pedal projection (34) of the clutch pedal (30) is installed so as to come into contact with the rear surface (61) of the friction plate (60).

Meanwhile, the rear surface (61) of the friction plate (60) that comes into contact with the pedal projection (34) is characterized by being formed as an arcuate surface protruding toward the rear to provide a sense of control and operation when operating the clutch pedal (30).

When the driver steps on the clutch pedal (30) and operates the clutch pedal (30), the clutch pedal (30) rotates forward around the hinge bolt (21), and the end of the pedal projection (34) rotates while in contact with the rear surface (61) of the friction plate (60). At this time, as the pedal projection (34) passes through the rear surface (61) of the friction plate (60) formed as an arc-shaped curved surface, the driver receives a sense of control and a sense of operation. In particular, the friction plate (60) moves forward in a straight line with the subspring rod (90) based on the reverse rotation bracket (80), and at this time, the subspring (50) is compressed and accumulates elastic force. The compressive elastic force of the subspring (50) generated at this time becomes the pressure (reaction force, operating force) when the clutch pedal (30) is operated.

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

An embodiment according to the present invention is configured such that when a driver steps on the clutch pedal (30) to operate (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) becomes the pressure (reaction force) of the clutch pedal (30).

And, when the clutch pedal (30) rotates forward and the operating force is released, the clutch pedal (30) rotates backward and returns by the restoring force of the main spring (40) and the sub spring (50), and the value obtained by subtracting the frictional force of the friction plate (60) from the combined restoring force of the main spring (40) and the restoring force of the sub spring (50) acts as the restoring force of the clutch pedal (30). Therefore, the present invention is characterized by a configuration in which hysteresis occurs as the frictional force generated by the contact between the pedal projection (34) and the friction plate (60) acts as a resistance value when the clutch pedal (30) returns backward.

The clutch pedal device for a general electronic clutch system is configured to generate a pressure (reaction force) only with the spring force of one clutch pedal device when the driver steps on the clutch pedal to operate it. As a result, compared to a hydraulic clutch system, there was an inconvenience due to a foreign feeling because the pressure (reaction force) did not include hydraulic pressure.

However, the clutch pedal device for an electronic clutch according to the present invention is configured such that the combined value of the compression elasticity of the main spring (40) and the compression elasticity of the sub spring (50) that occur when the clutch pedal (20) is operated becomes the pressure (reaction force) of the clutch pedal (30), and thus, compared to a hydraulic clutch system, since the pressure (reaction force) is at the same level, the occurrence of a foreign feeling can be eliminated, which has the advantage of greatly contributing to improving marketability.

In an embodiment according to the present invention, a pedal stopper (100) that regulates a full stroke of a clutch pedal (30) when it rotates forward is coupled to a lower portion of a pedal member (10), and the lower portion of the friction plate (60) is configured with a protrusion (62) that protrudes rearward, and when the clutch pedal (30) rotates rearward and returns, a pedal projection (34) is caught on the protrusion (62) and its movement is restricted, thereby regulating the rearward return position of the clutch pedal (30).

That is, the pedal stopper (100) functions as a front stopper that regulates the forward rotation of the clutch pedal (30), and the protrusion (62) of the friction plate (60) functions as a rear stopper that regulates the backward rotation by contacting the pedal protrusion (34) when the clutch pedal (30) rotates backward.

In addition, an embodiment according to the present invention further includes a pedal switch (130) having a permanent magnet (110) coupled to a main spring load (70) and a PCB (120; Printed Circuit Board) coupled to the pedal member (10) and facing the permanent magnet (110).

The permanent magnet (110) is fixedly connected to the lower part extending vertically from the main spring rod (70), so that when the main spring rod (70) moves vertically by the rotation of the clutch pedal (30), the permanent magnet (110) also moves vertically and its position changes.

The permanent magnet (110) is installed so as to be positioned between two member brackets (11) in the pedal member (10), and accordingly, the pedal switch (130) is also fixedly connected to the pedal member (10) so as to be positioned between the two member brackets (11), and the PCB (120) provided in 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 supply such as a battery via wires.

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) detects the change in magnetic flux according to the change in position of the permanent magnet (110) and outputs a signal to the clutch controller (140), and the clutch controller (140) receives the output signal of the PCB (120) and controls the operation of the clutch actuator (150), and the clutch (160) is blocked and connected by the operation of the clutch actuator (150), so that clutch control is performed electronically.

The clutch (160) of the vehicle has the same general configuration as that of a flywheel connected to a crankshaft, a clutch plate, a pressure plate, a clutch spring, a release lever, a release bearing, a release fork, etc., so a detailed description is omitted.

An embodiment according to the present invention is configured by combining a main spring rod (70), which is one of the mechanisms that generates operating force when the driver operates the clutch pedal (30), with a permanent magnet (110), which is one of the sensor mechanisms of the clutch pedal (30), thereby having the advantage of greatly reducing costs since there is no need to provide a separate installation structure.

In addition, the embodiment according to the present invention has the advantage of being able to significantly reduce costs by configuring the permanent magnet (110) and the PCB (120) to act as an integrated sensor that can perform all of the functions of a conventional clutch switch, an ignition lock switch, and a stroke sensor for EPB.

In addition, the present invention is configured such that a cover (170) is fixedly installed using two member brackets (11), and a permanent magnet (110) is covered using the cover (170), so that damage to the permanent magnet (110) caused by foreign substances can be prevented through the cover (170).

An embodiment according to the present invention additionally has a configuration that can prevent injury to the driver's legs caused by the clutch pedal (30) in the event of a collision accident.

To this end, a member stopper (180) is attached to one side of the pedal member (10) where the member bracket (11) is formed, and the member stopper (180) is installed so as to be positioned below the member bracket (11) located at the lower side of the two member brackets (11).

In addition, an upper bracket (190) is fixedly connected to the upper part of the pedal member (10) through welding, and a cowl bracket (200) is connected to the upper bracket (190) so as to be detachable by a load at the time of a collision.

A rearwardly opened slot is formed in the cowl bracket (200), and a bolt and nut are fastened through the slot, so that the cowl bracket (200) can be structured to be separated from the upper bracket (190) by the load at the time of a collision.

Alternatively, the upper bracket (190) and the cowl bracket (200) may be joined by welding to form a structure that separates from each other in the event of a collision.

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

Therefore, when a large load (F1) is input in an inclined direction from the front lower part of the dash panel (10) to the rear upper part as shown in FIG. 11 due to an offset collision, a small overlap collision, a nerve-wracking offset collision, etc., the shape of the pedal member (10) collapses, causing the member stopper (180) to move upward to pressurize the spring seat (71) from the bottom to the top, and at this time, the main spring rod (70) moves upward (arrow M1), and due to the upward movement of the main spring rod (70), the clutch pedal (30) connected to the main spring rod (70) through the pedal protrusion (34) is forcibly rotated forward around the hinge bolt (21) (arrow R1), and thus, when an accident occurs, the clutch pedal (30) can be forcibly rotated forward in reverse, thereby providing an advantage in preventing injury to the driver's legs caused by the clutch pedal (30).

As another example, as shown in Fig. 12, when the shape of the pedal member (10) collapses due to a large load (F2) generated during a collision and the pedal member (10) moves rearward, the cowl bracket (200) is separated from the upper bracket (190) (arrow M2), and the cowl bracket (200) comes into contact with the upper end of the sub-spring rod (90) protruding upward from the pedal member (10) to pressurize the sub-spring rod (90).

When the pressurization of the subspring rod (90) by the cowl bracket (200) progresses, the reverse rotation bracket (80) including the subspring rod (90) rotates counterclockwise about the hinge pin (81) with respect to the pedal member (10) (arrow R2), and the friction plate (60) combined with the subspring rod (90) also rotates counterclockwise, and the clutch pedal (30), which was in contact with the friction plate (60) through the pedal protrusion (34) when the friction plate (60) rotates, is forcibly rotated forward about the hinge bolt (21) (arrow R3), and thus, when an accident occurs, the clutch pedal (30) can be forcibly reversed forward, thereby providing the advantage of preventing injury to the driver's legs caused by the clutch pedal (30).

As described above, the embodiment according to the present invention is configured such that when a driver steps on the clutch pedal (30) in a clutch pedal device for an electronic clutch system that does not use a hydraulic mechanism, the combined value of the compression elasticity of the main spring (40) and the compression elasticity of the sub spring (50) becomes the pressure (reaction) of the clutch pedal (30), and thus, compared to a hydraulic clutch system, the same level of pressure (reaction) is generated, thereby eliminating the occurrence of a sense of incongruity, and thus, there is an advantage that greatly contributes to improving marketability.

In addition, the present invention is configured such that when the clutch pedal (30) rotates backwards and returns by the restoring force of the main spring (40) and the sub spring (50) when the operating force is released by releasing the pressure from the clutch pedal (30) that has rotated forward, the value obtained by subtracting the frictional force of the friction plate (60) from the combined restoring force of the main spring (40) and the restoring force of the sub spring (50) acts as the restoring force of the clutch pedal (30), and in particular, the frictional force generated by the contact between the pedal projection (34) of the clutch pedal (30) and the friction plate (60) acts as a resistance value to reduce the restoring force of the clutch pedal (30) and slow down the restoring speed, thereby preventing the phenomenon of the driver's ankle being bent by the clutch pedal (30) and, furthermore, inducing the occurrence of hysteresis.

In addition, the present invention has a configuration in which the clutch pedal (30) connected through the main spring rod (70) and the friction plate (60) and the pedal projection (34) is forcibly rotated forward when the shape of the pedal member (10) collapses due to a large load generated in a collision accident, thereby having the advantage of preventing injury to the driver's legs (such as a blow to the shin or a twisted ankle) caused by the clutch pedal (30) to the greatest extent possible.

While the present invention has been illustrated and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that the present invention may be variously improved and modified without departing from the technical spirit of the invention as defined by the following claims.

10 - Pedal Member 11 - Member Bracket
21 - Hinge bolt 22 - Nut
30 - Clutch Pedal 34 - Pedal Crank
40 - Mainspring 50 - Subspring
60 - Friction plate 61 - Rear surface
62 - Protrusion 70 - Main spring rod
80 - Reverse Rotation Bracket 81 - Hinge Pin
90 - Subspring load 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 - Top Bracket 200 - Cowl Bracket

Claims (12)

A clutch pedal rotatably connected to the pedal member around a hinge bolt;
A main spring and a sub spring that accumulate elastic force by being compressed when the clutch pedal is rotated forward as the clutch pedal is operated;
A friction plate installed in contact with the clutch pedal and subspring to generate frictional force when the clutch pedal rotates;
A pedal projection formed protruding from the top of the clutch pedal; and
It includes a main spring rod that is installed to be connected to a pedal protrusion by penetrating the member bracket and main spring provided in the pedal member above and moves linearly when the clutch pedal is rotated;
The sum of the compression elastic force of the main spring and the compression elastic force of the sub spring that occurs when the clutch pedal rotates forward becomes the pressure (reaction force) of the clutch pedal;
A clutch pedal device for an electronic clutch system, characterized in that both ends of the main spring are installed to be supported by a spring seat and a member bracket coupled to an end of a main spring rod. In claim 1,
When the operating force from the clutch pedal that has rotated forward is released, the clutch pedal rotates backward and returns due to the restoring force of the main spring and the sub spring, and the value obtained by subtracting the frictional force of the friction plate from the sum of the restoring force of the main spring and the restoring force of the sub spring becomes the restoring force of the clutch pedal;
A clutch pedal device for an electronic clutch system, characterized in that hysteresis occurs as the frictional force of a friction plate acts as a resistance value when the clutch pedal is rotated backwards. delete In claim 1,
A permanent magnet coupled to the above main spring rod; and
Further comprising a pedal switch having a PCB coupled to the pedal member and facing the permanent magnet;
The position of the above permanent magnet is changed by the main spring rod that moves linearly when the clutch pedal is rotated;
A clutch pedal device for an electronic clutch system, characterized in that the PCB is configured to detect a change in magnetic flux according to a change in the position of a permanent magnet and output a signal to a clutch controller. In claim 4,
The above member bracket is composed of two brackets formed vertically apart on one side of the pedal member;
The above permanent magnet is coupled to the main spring rod and installed between two member brackets;
A clutch pedal device for an electronic clutch system, characterized in that the cover is fixedly installed using the above two member brackets and the permanent magnet is covered by the cover. In claim 1,
A reverse-rotating bracket positioned at the upper front side facing the pedal protrusion of the pedal member and having left and right sides rotatably connected to the pedal member with respect to the hinge pin as the center;
Further comprising a sub-spring rod installed to penetrate the above reverse rotation bracket and sub-spring and be combined with the friction plate;
Both ends of the above subspring are installed to be supported on a reverse rotation bracket and a friction plate;
A clutch pedal device for an electronic clutch system, characterized in that the pedal projection is installed so as to come into contact with the rear surface of the friction plate. In claim 6,
An upper bracket fixedly connected to the upper part of the pedal member;
Further comprising a cowl bracket detachably connected to the upper bracket by a load at the time of a collision;
A clutch pedal device for an electronic clutch system, characterized in that one end of the subspring rod protrudes upward from the pedal member and is positioned toward the front of the cowl bracket. In claim 6,
A clutch pedal device for an electronic clutch system, characterized in that the rear surface of the friction plate that comes into contact with the pedal projection is formed as an arcuate surface that protrudes rearward to provide a sense of cutting when operating the clutch pedal. In claim 1,
A clutch pedal device for an electronic clutch system, characterized in that a pedal stopper is combined at the lower end of the pedal member to regulate the full stroke when the clutch pedal is rotated forward. In claim 6,
The lower part of the above friction plate is formed with a protrusion protruding rearward;
A clutch pedal device for an electronic clutch system, characterized in that when the clutch pedal is rotated backwards to return, the pedal projection is caught on a protrusion and the movement is restricted, thereby regulating the rearward return position of the clutch pedal. In claim 1,
The above spring sheet is positioned spaced apart from the bottom of the member bracket;
At the bottom of the above spring seat, a member stopper is located which is attached to one side of the pedal member;
When the shape of the pedal member collapses in the event of a collision, the main spring load moves upward as the member stopper presses the spring seat from below;
A clutch pedal device for an electronic clutch system, characterized in that when the main spring rod moves upward, the clutch pedal connected to the main spring rod through the pedal projection is forcibly rotated forward around the hinge bolt. In claim 7,
When the shape of the pedal member collapses in the event of a collision, the cowl bracket separates from the upper bracket, and the cowl bracket comes into contact with the end of the subspring rod protruding from the upper side of the pedal member and pressurizes the subspring rod;
The reverse rotation bracket and friction plate including the above sub-spring rod rotate relative to the pedal member about the hinge pin by the pressure of the cowl bracket;
A clutch pedal device for an electronic clutch system, characterized in that the clutch pedal, which was in contact with the friction plate through the pedal projection when the friction plate rotates, is forcibly rotated forward around the hinge bolt.

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