CN112124070B - Clutch pedal device for electronic clutch system - Google Patents
Clutch pedal device for electronic clutch system Download PDFInfo
- Publication number
- CN112124070B CN112124070B CN201910901602.7A CN201910901602A CN112124070B CN 112124070 B CN112124070 B CN 112124070B CN 201910901602 A CN201910901602 A CN 201910901602A CN 112124070 B CN112124070 B CN 112124070B
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- clutch
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- force
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- 238000007906 compression Methods 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 12
- 230000006378 damage Effects 0.000 description 9
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 208000014674 injury Diseases 0.000 description 8
- 210000002683 foot Anatomy 0.000 description 6
- ZLGYJAIAVPVCNF-UHFFFAOYSA-N 1,2,4-trichloro-5-(3,5-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(C=2C(=CC(Cl)=C(Cl)C=2)Cl)=C1 ZLGYJAIAVPVCNF-UHFFFAOYSA-N 0.000 description 5
- 210000003423 ankle Anatomy 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
- F16D48/064—Control of electrically or electromagnetically actuated clutches
-
- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/05—Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops
-
- 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
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
- B60K2023/025—Adjusting of clutch pedal positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/418—Power assistance, e.g. servo-motors
- B60Y2400/4187—Servo-motors, e.g. electric or fluidic with feedback control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/314—Signal inputs from the user
- F16D2500/31406—Signal inputs from the user input from pedals
- F16D2500/31413—Clutch pedal position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/50206—Creep control
- F16D2500/50209—Activation of the creep control operation
- F16D2500/50215—Brake pedal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/70—Details about the implementation of the control system
- F16D2500/702—Look-up tables
- F16D2500/70252—Clutch torque
- F16D2500/70288—Clutch pedal position
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/44—Controlling members actuated by foot pivoting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Mechanical Operated Clutches (AREA)
- Mechanical Control Devices (AREA)
Abstract
The present disclosure relates to a clutch pedal apparatus for an electronic clutch system, in which when a driver depresses a clutch pedal, a sum of a compression elastic force of a main spring and a compression elastic force of a sub-spring becomes a pedal force (reaction force) of the clutch pedal, and when the clutch pedal is released and returns backward, a value obtained by subtracting a friction force of a friction plate from the sum of a return force of the main spring and the return force of the sub-spring is used as a return force of the clutch pedal.
Description
Technical Field
The present disclosure relates to a clutch pedal apparatus for an electronic clutch system, and more particularly, to a clutch pedal apparatus for an electronic clutch system configured to be capable of generating a pedal force (reaction force) at the same level as a hydraulic clutch system when the clutch pedal is operated, to reduce a return speed while reducing a return force when the clutch pedal returns, and to forcibly rotate the clutch pedal forward in a crash accident.
Background
A general vehicle equipped with a manual transmission includes a device called a clutch, and the clutch is provided between a flywheel and an input shaft of the transmission, and connects/disconnects power transmitted from an engine to the transmission, if necessary.
To shift gears, the driver first disengages the clutch in the vehicle by depressing the clutch pedal, shifts to a desired gear by operating the lever, and then engages the clutch by releasing the clutch pedal, thereby completing the shift.
According to the hydraulic clutch system including the clutch master cylinder and the clutch release cylinder between the clutch pedal and the clutch, when the driver depresses the clutch pedal, the sum of the force of the spring on the clutch pedal and the hydraulic pressure generated by the clutch master cylinder and the clutch release cylinder becomes the pedal force (reaction force).
However, electronic clutch systems do not use mechanical constructions that utilize hydraulic pressure. Therefore, there is an advantage in that the weight and manufacturing cost can be greatly reduced as compared with the hydraulic clutch system. Further, when the driver depresses the clutch pedal to perform a shift, a pedal sensor 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 a controller (clutch controller, which is an electronic controller for the operation of the clutch). Further, the controller receives various signals (including signals from the pedal sensor) showing the engine speed and the like, automatically calculates an optimal operation time of the clutch most suitable for the vehicle state, and controls the operation of the actuator (a device operated to engage/disengage the clutch, such as a direct current motor) so that the clutch is engaged or disengaged by the operation of the actuator.
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, and therefore when the driver depresses the clutch pedal, only the force of the spring on the clutch pedal acts as a synthetic pedal force (reaction force). Therefore, there is a disadvantage in that when the clutch pedal of the electronic clutch system is depressed, the driver has a sense of disconnection because the operation is lighter than the hydraulic type.
The description provided above as related art to the present disclosure is only for aiding in understanding the background of the present disclosure, and should not be construed as being included in the related art known to those skilled in the art.
Disclosure of Invention
An aspect of the present disclosure is to provide a clutch pedal apparatus for an electronic clutch system, in which a clutch is operated in response to an electrical signal generated by an operation of a clutch pedal, the clutch pedal apparatus being capable of releasing disconnection by generating a pedal force (reaction force) of the same level as that of a hydraulic clutch system when the clutch pedal is operated, to cause hysteresis by reducing a return force while reducing a return speed when the clutch pedal returns, and to maximally prevent injury of a driver due to the clutch pedal by forcibly rotating the clutch pedal forward in a collision accident.
In view of one aspect, a clutch pedal apparatus for an electronic clutch system according to the present disclosure includes: a clutch pedal coupled to the pedal member to be rotatable on the hinge bolt; a main spring and a sub-spring accumulating an elastic force by being compressed when the clutch pedal is operated and rotated forward; and a friction plate provided in contact with the clutch pedal and the sub-spring to generate a friction force when the clutch pedal rotates, wherein a sum of a compression elastic force of the main spring and a compression elastic force of the sub-spring generated when the clutch pedal rotates forward becomes a pedal force (reaction force) of the clutch pedal.
When the operating force is removed from the clutch pedal that rotates forward, and the clutch pedal rotates backward and returns by the restoring forces of the main spring and the sub-spring, a value obtained by subtracting the friction force of the friction plate from the sum of the restoring forces of the main spring and the sub-spring becomes the returning force of the clutch pedal; and when the clutch pedal rotates backward, the friction force of the friction plate is used as a resistance value, thereby generating hysteresis.
The clutch pedal apparatus further includes: a pedal protrusion protruding from an upper end of the clutch pedal; and a main spring rod coupled to the pedal protrusion through a member bracket formed on the pedal member, and moving straight when the clutch pedal rotates, wherein both ends of the main spring are supported by a spring seat and the member bracket coupled to one end of the main spring rod.
The clutch pedal apparatus further includes: a permanent magnet coupled to the primary spring rod; and a pedal switch coupled to the pedal member and having a PCB facing the permanent magnet, wherein a position of the permanent magnet is changed by the main spring lever moving straight when the clutch pedal rotates, and the PCB outputs a signal to the clutch controller by detecting a change in magnetic flux due to the change in the position of the permanent magnet.
The member bracket is constituted by two brackets vertically spaced apart from each other on one side of the pedal member, the permanent magnet is coupled to the main spring lever to be positioned between the two member brackets, and the cover is fixed by the two member brackets, and the permanent magnet is covered by the cover.
The clutch pedal apparatus further includes: a reverse bracket provided at an upper portion of the pedal member facing a front portion of the pedal protrusion, and having left and right sides coupled to be rotatable with respect to the pedal member on a hinge pin; and a secondary spring rod coupled to the friction plate through the reverse bracket and the secondary spring, wherein both ends of the secondary spring are disposed to be supported by the reverse bracket and the friction plate, and the pedal protrusion is disposed to be in contact with a rear side of the friction plate.
The clutch pedal apparatus includes: an upper bracket fixed to an upper end of the pedal member; and a hood support coupled to the upper support to be separable by a load in a collision, wherein one end of the sub-spring protrudes beyond the pedal member and is then positioned in front of the hood support.
The rear side of the friction plate, which is in contact with the pedal projection, is an arc-shaped curved surface protruding rearward so as to be able to generate a click feeling when the clutch pedal is operated.
A pedal stopper limiting 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 a protrusion protruding rearward, and when the clutch pedal is rotated rearward to return, the pedal protrusion is locked against movement, thus restricting the rearward return of the clutch pedal.
The spring seat is positioned to be spaced downward from the member bracket, a member stopper coupled to one side of the pedal member is positioned under the spring seat, the main spring lever moves upward when the pedal member is deformed and the member stopper presses the spring seat upward in a collision accident, and a clutch pedal connected to the main spring lever through a pedal protrusion is forcibly rotated forward on the hinge bolt when the main spring lever moves upward.
In the event of a collision, the pedal member is deformed and the hood support is separated from the upper support, whereby the hood support presses the secondary spring lever by contact with an end of the secondary spring lever protruding beyond the pedal member; by the squeezer hood support, the reversing support including the secondary spring lever and the friction plate rotate on the hinge pin relative to the pedal member; and when the friction plate rotates, the clutch pedal, which has been brought into contact with the friction plate by the pedal projection, is forcibly rotated forward on the hinge bolt.
According to the present disclosure, in the clutch pedal apparatus for the electronic clutch system that does not use the hydraulic mechanism, when the driver depresses the clutch pedal, the sum of the compression elastic force of the main spring and the compression elastic force of the sub-spring becomes the pedal force (reaction force) of the clutch pedal. Accordingly, the pedal force (reaction force) is generated at the same level as compared with the hydraulic clutch system, and thus the sense of disconnection can be eliminated, thereby having the effect of greatly improving the commercial quality.
Further, according to the present disclosure, when the operating force is removed by moving the foot portion away from the clutch pedal that rotates forward, and the clutch pedal rotates backward and returns by the restoring forces of the main spring and the sub spring, a value obtained by subtracting the friction force of the friction plate from the sum of the restoring forces of the main spring and the sub spring is used as the returning force of the clutch pedal. In particular, frictional force generated due to contact between the pedal projection of the clutch pedal and the friction plate serves as a resistance value, and the return force and return speed of the clutch pedal are reduced. Therefore, there are advantages in that it is possible to prevent the ankle of the driver from being injured, and also to cause hysteresis.
Further, according to the present disclosure, when the pedal member is deformed due to a large load generated in a collision accident, the clutch pedal connected to the main spring lever and the friction plate through the pedal protrusion is forcibly rotated forward. Therefore, there is an advantage in that it is possible to prevent injury to the legs of the driver (impact on the lower leg, injury on the ankle, etc.) due to the clutch pedal to the maximum extent.
Drawings
The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
fig. 1 and 2 are an exploded perspective view and an assembled perspective view of a clutch pedal apparatus for an electronic clutch system according to the present disclosure;
FIG. 3 is a view of the upper bracket and hood bracket from FIG. 2 removed;
fig. 4 and 5 are right and left side views of fig. 2;
FIG. 6 is a view from FIG. 3 with the pedal member removed;
FIG. 7 is a left perspective view of FIG. 6;
FIG. 8 is a view showing the full stroke of the clutch pedal;
Fig. 9 is a view showing states before and after the clutch pedal is operated;
FIG. 10 is a front view of FIG. 9; and
Fig. 11 to 12 are views showing a reverse state of the clutch pedal in the event of a crash.
Detailed Description
A clutch pedal apparatus for an electronic clutch system according to an exemplary embodiment of the present disclosure is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 12, a clutch pedal apparatus for an electronic clutch system according to the present disclosure includes: a pedal member 10 fixed to the instrument panel 1 provided in front of the driver seat; and a clutch pedal 30 coupled to the pedal member 10 through a hinge bolt 21 and a nut 22 to be rotatable forward and backward.
The front portion of the pedal member 10 is coupled to the instrument panel 1, the left and right side portions extending rearward from the front portion are parallel to each other, and the pedal member 10 is open forward, upward, and downward.
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 then are fastened by the nuts 22, thereby forming a structure in which the clutch pedal 30 is coupled to be rotatable forward and backward on the hinge bolts 21 with respect to the pedal member 10.
A hinge pipe 31 is coupled to an upper end of the clutch pedal 30, a pad 32 operated by a driver's foot is coupled to a lower end of the clutch pedal 30, and hinge bushings 33 are coupled to left and right ends of the hinge pipe 31 to prevent frictional interference with the pedal member 10.
The pedal projection 34 projects forward from the upper end of the clutch pedal 30.
The clutch pedal apparatus according to the present disclosure has a configuration for generating pedal force (reaction force) when the driver depresses the clutch pedal 30 (when the clutch pedal rotates forward on the hinge bolt) and a configuration for realizing hysteresis when the clutch pedal 30 returns (rotates backward).
To this end, the clutch pedal apparatus of the present disclosure includes: a main spring 40 and a sub-spring 50 that accumulate elastic force by being compressed when the clutch pedal 30 is operated to rotate forward; and a friction plate 60 disposed in contact with the clutch pedal 30 and the sub-spring 50 to generate friction when the clutch pedal 30 rotates.
The primary spring 40 and the secondary spring 50 may be stiff coil springs.
A forwardly protruding pedal projection 34 is formed at an upper end of the clutch pedal 30, and an upper end of the main spring lever 70 is fixed to the pedal projection 34.
The main spring lever 70 is bent in an L shape, wherein one end of a left-right extending upper portion is coupled to the pedal protrusion 34, and wherein a vertically extending lower portion is provided to pass through a member bracket 11 formed on the pedal member 10 to be movable up and down. Further, the main spring 40 is fitted on the upper and lower extending lower portion, and the spring seat 71 is integrally coupled to the end of the upper and lower extending lower portion.
The member bracket 11 protrudes from one side of the pedal member 10 within the pedal member 10. Further, the component bracket 11 is constituted by two brackets vertically spaced apart from each other, and the main spring 40 is positioned below the lower component bracket 11 of the two brackets. Accordingly, the main spring 40 is installed such that its upper end is supported by the bottom of the lower member bracket 11 of the two member brackets 11, and its lower end is supported by the top of the spring seat 71.
When the driver depresses the clutch pedal 30 and the clutch pedal 30 rotates forward on the hinge bolt 21, the main spring lever 70 is guided to move straight upward by the member bracket 11 by the rotation of the pedal projection 34. In this process, the main spring 40 accumulates elastic force by being compressed, and when the clutch pedal 30 is operated, the compression elastic force of the main spring 40 becomes pedal force (reaction force).
When the driver releases the clutch pedal 30 rotated forward (removes the foot from the clutch pedal), the clutch pedal 30 is rotated backward and returned to the original position by the restoring force of the main spring 40.
The reverse bracket 80 is coupled to an upper portion of the pedal member 10 facing the front of the pedal protrusion 34, and a secondary spring lever 90 is provided through the reverse bracket 80 to be movable forward and backward.
The reverse bracket 80 extends left and right within the pedal member 10, and the reverse bracket 80 should be rotated with respect to the pedal member 10 when a collision accident occurs. To this end, the left and right sides of the reverse bracket 80 may be coupled to the left and right sides of the pedal member 10 by a hinge pin 81, but may be coupled to be rotatable in various manners including welding.
The secondary spring lever 90 has lower and upper ends extending forward and rearward, and a middle portion connecting the upper and lower ends and extending up and down. Further, a lower end is provided to pass through the reverse bracket 80 to be movable forward and backward, and a middle portion and an upper end protrude upward from the pedal member 10.
The rear end of the lower end of the secondary spring rod 90 passing through the reverse bracket 80 passes through the secondary spring 50 and is then fixed to the front of the friction plate 60. Accordingly, both the front and rear ends of the sub spring 50 are supported by the reverse bracket 80 and the friction plate 60, and the pedal protrusion 34 of the clutch pedal 30 contacts the rear side 61 of the friction plate 60.
The rear side 61 of the friction plate 60, which contacts the pedal projection 34, is characterized by a curved surface protruding rearward to give clicking and operational feeling (CLICKING AND operating feeling) when the clutch pedal 30 is operated.
When the driver depresses the clutch pedal 30 and the clutch pedal 30 rotates forward on the hinge bolt 21, the end of the pedal projection 34 rotates, contacting the rear side 61 of the friction plate 60. In this process, the pedal protrusion 34 slides on the rear side 61 of the friction plate 60, which is an arc-shaped curved surface, transmitting a click and an operational feeling to the driver. In particular, the friction plate 60 moves straight forward with respect to the reverse bracket 80 together with the secondary spring lever 90, and the secondary spring 50 accumulates elastic force by being compressed. Therefore, when the clutch pedal 30 is operated, the compression elastic force of the sub-spring 50 becomes pedal force (reaction force, operation force).
When the driver releases the clutch pedal 30 rotated forward (removes his foot from the clutch pedal), the clutch pedal 30 is rotated backward and returned to the original position by the restoring force of the main spring 40 and the sub-spring 50.
The embodiment according to the present disclosure is configured such that when the driver depresses 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 becomes the pedal force (reaction force) of the clutch pedal 30.
Further, when the operating force is removed by moving the foot away from the clutch pedal 30 that rotates forward, and the clutch pedal 30 rotates backward and returns by the restoring forces of the main spring 40 and the sub-spring 50, a value obtained by subtracting the friction force of the friction plate 60 from the sum of the restoring forces of the main spring 40 and the sub-spring 50 is used as the returning force of the clutch pedal 30. Accordingly, the present disclosure is characterized in that a frictional force generated due to contact between the pedal protrusion 34 and the friction plate 60 when the clutch pedal 30 is returned rearward is used as a resistance value, thereby generating hysteresis.
A general clutch pedal apparatus for an electronic clutch system is configured to generate pedal force (reaction force) using only one spring in the clutch pedal apparatus when a driver depresses the clutch pedal, and thus hydraulic pressure is not included in the pedal force (reaction force) compared to a hydraulic clutch system, so that there is inconvenience due to a sense of disconnection.
However, the clutch pedal apparatus for an electronic clutch according to the present disclosure is configured such that the sum of the compression elastic force of the main spring 40 and the compression elastic force of the sub-spring 50, which are generated when the clutch pedal 20 is operated, becomes the pedal force (reaction force) of the clutch pedal 30. Accordingly, pedal force (reaction force) is generated at the same level as compared with the hydraulic clutch system, and thus the sense of disconnection can be eliminated, and thus there is an advantage in that it greatly helps to improve commercial quality.
According to one embodiment of the present disclosure, the pedal stopper 100, which limits a full stroke when the clutch pedal 30 rotates forward, is coupled to a lower portion of the pedal member 10, and the lower end of the friction plate 60 is a protrusion 62 protruding rearward. Accordingly, when the clutch pedal 30 is rotated rearward to return, the pedal protrusion 34 is locked to the protrusion 62 without moving, thus restricting the rearward return of the clutch pedal 30.
That is, the pedal stopper 100 serves as a forward stopper that restricts forward rotation of the clutch pedal 30, and the projection 62 of the friction plate 60 serves as a rearward stopper that restricts rearward rotation by contact with the pedal projection 34 when the clutch pedal 30 rotates rearward.
Furthermore, one embodiment of the present disclosure further includes: a permanent magnet 110 coupled to the primary spring rod 70; and a pedal switch 130 coupled to the pedal member 10 and having a Printed Circuit Board (PCB) 120 facing the permanent magnet 110.
The permanent magnet 110 is fixed to a lower portion of the main spring lever 70 extending up and down, so when the main spring lever 70 moves up and down by the rotation of the clutch pedal 30, the permanent magnet 110 also moves up and down, thereby changing the position.
The permanent magnet 110 is positioned between the two member brackets 11 of the pedal member 10, and thus the pedal switch 130 is also fixed to the pedal member 10 so as to be positioned between the two member brackets 11, and the PCB 120 of the pedal switch 130 is positioned to face the permanent magnet 110.
The PCB 120 is configured to be electrically connected to a power source (such as a battery) through wires.
When the driver operates the clutch pedal 30 to rotate it, the permanent magnet 110 moves up and down together with the main spring lever 70. In this process, the PCB 120 outputs a signal to the clutch controller 140 by detecting a change in magnetic flux due to a change in the position of the permanent magnet 110, the clutch controller 140 controls the operation of the clutch actuator 150 in response to the output signal from the PCB 120, and the clutch 160 is disengaged and engaged by the operation of the actuator 150, thereby performing electronic clutch control.
The clutch 60 of the vehicle is the same as a general construction including a flywheel, a clutch plate, a pressure plate, a clutch spring, a release lever, a release bearing, a release fork, etc. connected to a crankshaft, and thus a detailed description is not provided.
According to one embodiment of the present disclosure, the permanent magnet 110, which is one sensor unit of the clutch pedal 30, is combined with the main spring lever 70, which is one of the components that generates an operation force when the driver operates the clutch pedal 30. Therefore, there is an advantage in that there is no separate mounting structure, and thus manufacturing costs can be significantly reduced.
Further, according to one embodiment of the present disclosure, the permanent magnet 110 and the PCB 120 may perform the function of an integrated sensor that may perform all functions of a clutch switch, an ignition lock switch, and a travel sensor for EPB in the related art, so there is an advantage in that manufacturing costs may be significantly reduced.
Further, according to the present disclosure, the cover 170 is fixed by the two-member bracket 11, and the permanent magnet 110 is covered by the cover 170, so it is possible to use the cover 170 to prevent damage to the permanent magnet 110 due to foreign matter.
An embodiment according to the present disclosure also has a configuration such that: injury to the legs of the driver due to the clutch pedal 30 can be prevented to the greatest extent when a collision accident occurs.
For this, the member stopper 180 is coupled to one side of the pedal member 10 where the member brackets 11 are formed, and is positioned below the lower member brackets 11 of the two member brackets 11.
The upper bracket 190 is fixed to the upper end of the pedal member 10 by welding, and the hood bracket 200 is coupled to the upper bracket 190 so as to be separable by a load in a collision.
A rearwardly open groove is formed at the hood support 200, and bolts and nuts are fastened through the groove, so that the hood support 200 can be separated from the upper support 190 by a load in a collision.
Or the upper bracket 190 and the hood bracket 200 may be coupled by welding to be separated from each other in a collision.
The upper end of the secondary spring lever 90 protruding beyond the pedal member 10 is positioned in front of the hood support 200.
Therefore, when a large load F1 is input at an angle from the front lower portion toward the rear upper portion of the instrument panel 10 due to an offset collision, a small overlap collision, a new oblique offset collision, as shown in fig. 11, the pedal member 10 is deformed. Thus, the member stopper 180 moves upward and presses the spring seat 71 upward. Further, the main spring lever 70 moves upward (arrow M1), and the clutch pedal 30 connected to the main spring lever 70 through the pedal projection 34 is forcibly rotated forward (arrow R1) on the hinge bolt 21 by the upward movement of the main spring lever 70. Accordingly, when an accident occurs, the clutch pedal 30 may be forcibly reversed, and thus, there is an advantage in that it is possible to prevent injury to the legs of the driver due to the clutch pedal 30 to the maximum extent.
As another example, as shown in fig. 12, when the pedal member 10 is deformed and moves rearward due to a large load F2 generated in a collision, the hood support 200 is separated from the upper support 190 (arrow M2). Further, the hood support 200 contacts with the upper end of the secondary spring lever 90 protruding above the pedal member 10, thereby pressing the secondary spring lever 90.
When the secondary spring lever 90 is pressed by the hood bracket 200, the reverse bracket 80 including the secondary spring lever 90 rotates counterclockwise (arrow R2) on the hinge pin 81 with respect to the pedal member 10, and the friction plate 60 coupled to the secondary spring lever 90 also rotates counterclockwise. Further, the clutch pedal 30, which has been brought into contact with the friction plate 60 by the pedal projection 34 when the friction plate 60 rotates, is forcibly rotated forward on the hinge bolt 21 (arrow R3). Accordingly, when an accident occurs, the clutch pedal 30 may be forcibly reversed, and thus, there is an advantage in that it is possible to prevent injury to the legs of the driver due to the clutch pedal 30 to the maximum extent.
As described above, one embodiment according to the present disclosure is configured such that when the driver steps on the clutch pedal 30 in the clutch pedal apparatus for the electronic clutch system that does not use the hydraulic mechanism, the sum of the compression elastic force of the main spring 40 and the compression elastic force of the sub-spring 50 becomes the pedal force (reaction force) of the clutch pedal 30. Accordingly, pedal force (reaction force) is generated at the same level as compared with the hydraulic clutch system, and thus the sense of disconnection can be eliminated, thereby having an advantage of greatly improving commercial quality.
Further, according to the present disclosure, when the operating force is removed by moving the foot away from the clutch pedal 30 that rotates forward and the clutch pedal 30 rotates backward and returns by the restoring forces of the main spring 40 and the sub-spring 50, a value obtained by subtracting the friction force of the friction plate 60 from the sum of the restoring forces of the main spring 40 and the sub-spring 50 is used as the returning force of the clutch pedal 30. In particular, the frictional force generated due to the contact between the pedal protrusion 34 of the clutch pedal 30 and the friction plate 60 serves as a resistance value, and reduces the return force and return speed of the clutch pedal 30. Therefore, there are advantages in that it is possible to prevent the ankle of the driver from being injured, and also to cause hysteresis.
Further, according to the present disclosure, when the pedal member 10 is deformed due to a large load generated in a collision accident, the clutch pedal 30 connected with the main spring lever 70 and the friction plate 60 through the pedal protrusion 34 is forcibly rotated forward. Accordingly, there is an advantage in that it is possible to prevent injury to the driver's legs (impact on the lower leg, injury to the ankle, etc.) due to the clutch pedal 30 to the maximum extent.
While the present disclosure has been described with reference to the specific embodiments illustrated in the drawings, it will be apparent to those skilled in the art that the present disclosure may be varied and modified in various ways without departing from the scope of the present disclosure as described in the appended claims.
Claims (10)
1. A clutch pedal apparatus for an electronic clutch system, the clutch pedal apparatus comprising:
a clutch pedal coupled to the pedal member to be rotatable on the hinge bolt;
A main spring and a sub-spring accumulating elastic force by being compressed when the clutch pedal is operated and rotated forward;
and a friction plate disposed in contact with the clutch pedal and the sub spring to generate friction force when the clutch pedal rotates,
Wherein the sum of the compression elastic force of the main spring and the compression elastic force of the sub spring, which are generated when the clutch pedal rotates forward, becomes the pedal force of the clutch pedal,
Wherein, clutch pedal apparatus still includes:
A pedal protrusion protruding from an upper end of the clutch pedal; and
A main spring rod coupled to the pedal protrusion through a member bracket formed on the pedal member, and moving straight when the clutch pedal rotates,
Wherein both ends of the main spring are supported by a spring seat coupled to one end of the main spring rod and the member bracket,
The clutch pedal apparatus further includes:
A reverse bracket provided at an upper portion of the pedal member facing a front portion of the pedal protrusion, and having left and right side portions coupled to be rotatable with respect to the pedal member on a hinge pin; and
A secondary spring lever coupled to the friction plate through the reverse bracket and the secondary spring,
Wherein both ends of the sub-spring are arranged to be supported by the reversing bracket and the friction plate, and
The pedal protrusion is disposed in contact with a rear side of the friction plate.
2. The clutch pedal apparatus according to claim 1, wherein, when the operation force is removed from the clutch pedal that rotates forward, and the clutch pedal rotates backward and returns by the return forces of the main spring and the sub-spring, a value obtained by subtracting the friction force of the friction plate from the sum of the return forces of the main spring and the sub-spring becomes the return force of the clutch pedal; and when the clutch pedal rotates backward, the friction force of the friction plate is used as a resistance value, thereby generating hysteresis.
3. The clutch pedal apparatus according to claim 1, further comprising:
A permanent magnet coupled to the primary spring rod; and
A pedal switch coupled to the pedal member and having a PCB facing the permanent magnet,
Wherein the position of the permanent magnet is changed by the main spring rod moving straight when the clutch pedal rotates, and
The PCB outputs a signal to a clutch controller by detecting a change in magnetic flux due to a change in the position of the permanent magnet.
4. The clutch pedal apparatus according to claim 3, wherein the member bracket is constituted by two member brackets vertically spaced apart from each other on one side of the pedal member,
The permanent magnet is coupled to the primary spring rod to be positioned between the two component brackets, and
A cover is fixed by the two member brackets, and the permanent magnet is covered by the cover.
5. The clutch pedal apparatus according to claim 1, further comprising:
an upper bracket fixed to an upper end of the pedal member; and
A hood support coupled to the upper support to be separable by a load in a collision,
Wherein one end of the secondary spring lever protrudes beyond the pedal member and is then positioned in front of the hood support.
6. The clutch pedal apparatus according to claim 1, wherein a rear side of the friction plate in contact with the pedal projection is an arc-shaped curved surface protruding rearward so as to be able to generate a click feeling when the clutch pedal is operated.
7. The clutch pedal apparatus according to claim 1, wherein a pedal stopper that limits a full stroke when the clutch pedal rotates forward is coupled to a lower end of the pedal member.
8. The clutch pedal apparatus according to claim 1, wherein a lower end of the friction plate is a projection projecting rearward, and
When the clutch pedal rotates backward to return, the pedal projection is locked to the projection without moving, thus restricting backward return of the clutch pedal.
9. The clutch pedal apparatus according to claim 1, wherein the spring seat is positioned spaced downward from the member bracket,
A member stopper coupled to one side of the pedal member is positioned below the spring seat,
When the pedal member is deformed and the member stopper presses the spring seat upward in a collision accident, the main spring rod moves upward, and
When the main spring lever moves upward, the clutch pedal connected to the main spring lever through the pedal projection is forcibly rotated forward on the hinge bolt.
10. The clutch pedal apparatus according to claim 5, wherein in a collision accident, the pedal member is deformed and the hood support is separated from the upper support, whereby the hood support presses the secondary spring lever by contacting an end of the secondary spring lever protruding beyond the pedal member;
Rotating the reversing bracket including the secondary spring lever and the friction plate on the hinge pin relative to the pedal member by pressing the hood bracket; and
When the friction plate rotates, the clutch pedal, which has been brought into contact with the friction plate by the pedal projection, is forcibly rotated forward on the hinge bolt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0074977 | 2019-06-24 | ||
| KR1020190074977A KR20210000112A (en) | 2019-06-24 | 2019-06-24 | Clutch pedal apparatus for electronic clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112124070A CN112124070A (en) | 2020-12-25 |
| CN112124070B true CN112124070B (en) | 2024-05-10 |
Family
ID=73654492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910901602.7A Active CN112124070B (en) | 2019-06-24 | 2019-09-23 | Clutch pedal device for electronic clutch system |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20210000112A (en) |
| CN (1) | CN112124070B (en) |
| DE (1) | DE102019127860A1 (en) |
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|---|---|---|---|---|
| GB2338774A (en) * | 1998-06-27 | 1999-12-29 | Rover Group | Vehicle control pedal assemblies eg for drive-by-wire systems |
| CN102053648A (en) * | 2009-10-27 | 2011-05-11 | 株式会社东熙产业 | Apparatus for generating hysteresis of electronic accelerator pedal for vehicle |
| JP2013014250A (en) * | 2011-07-05 | 2013-01-24 | Denso Corp | Accelerator device |
| CN103842927A (en) * | 2011-10-07 | 2014-06-04 | Cts公司 | Vehicle pedal assembly with hysteresis assembly |
| KR20140083333A (en) * | 2012-12-26 | 2014-07-04 | 현대자동차주식회사 | Clutch pedal apparatus for vehicle |
| CN104661850A (en) * | 2012-09-27 | 2015-05-27 | 罗伯特·博世有限公司 | Clutch pedal device |
| KR20160084559A (en) * | 2015-01-05 | 2016-07-14 | 주식회사 동희산업 | Accelerator pedal apparatus with variable pedal effort |
| FR3039465A1 (en) * | 2015-07-31 | 2017-02-03 | Bosch Gmbh Robert | CLUTCH PEDAL MODULE WITH PROGRESSIVE REACTION |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6860170B2 (en) * | 2002-09-09 | 2005-03-01 | Dura Global Technologies, Inc. | Electronic throttle control hysteresis mechanism |
| KR20060079685A (en) | 2005-01-03 | 2006-07-06 | 현대자동차주식회사 | Electric control type clutch |
| US20060230875A1 (en) * | 2005-04-15 | 2006-10-19 | Jiyuan Ouyang | Pedal assembly having a hysteresis generating structure |
-
2019
- 2019-06-24 KR KR1020190074977A patent/KR20210000112A/en not_active Application Discontinuation
- 2019-09-23 CN CN201910901602.7A patent/CN112124070B/en active Active
- 2019-10-16 DE DE102019127860.0A patent/DE102019127860A1/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2338774A (en) * | 1998-06-27 | 1999-12-29 | Rover Group | Vehicle control pedal assemblies eg for drive-by-wire systems |
| CN102053648A (en) * | 2009-10-27 | 2011-05-11 | 株式会社东熙产业 | Apparatus for generating hysteresis of electronic accelerator pedal for vehicle |
| JP2013014250A (en) * | 2011-07-05 | 2013-01-24 | Denso Corp | Accelerator device |
| CN103842927A (en) * | 2011-10-07 | 2014-06-04 | Cts公司 | Vehicle pedal assembly with hysteresis assembly |
| CN104661850A (en) * | 2012-09-27 | 2015-05-27 | 罗伯特·博世有限公司 | Clutch pedal device |
| KR20140083333A (en) * | 2012-12-26 | 2014-07-04 | 현대자동차주식회사 | Clutch pedal apparatus for vehicle |
| KR20160084559A (en) * | 2015-01-05 | 2016-07-14 | 주식회사 동희산업 | Accelerator pedal apparatus with variable pedal effort |
| FR3039465A1 (en) * | 2015-07-31 | 2017-02-03 | Bosch Gmbh Robert | CLUTCH PEDAL MODULE WITH PROGRESSIVE REACTION |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019127860A1 (en) | 2020-12-24 |
| CN112124070A (en) | 2020-12-25 |
| KR20210000112A (en) | 2021-01-04 |
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