Automobile suspension type electronic accelerator pedal with hysteresis mechanism

Abstract

The utility model provides an automobile suspension type electronic accelerator pedal with a hysteresis mechanism, which comprises a pedal connecting rod, a rotating shaft, a bushing, a base, a spring seat, a reset spring, a friction block, a magnetic block component, a swing rod pin and an electronic box, the middle of the spring seat is fixed to the tail of the base in a hinged mode, one end of the reset spring is fixed in a groove in the tail end of the spring seat, and the other end of the reset spring is fixed in a groove in the middle of the pedal connecting rod. The spring seat is a lever mechanism, friction noise and abrasion of the friction block are small, automatic compensation can be achieved even if the friction block is abraded, influence on hysteresis force is small, and durability of products is improved. And the metal rotating shaft and the bushing are adopted, so that the deformation of the rotating shaft under radial pressure is small, and the influence on hysteresis force is small. And the radial stress of the magnetic block assembly is very small, so that the stability of signal output is ensured. The delaying mechanism is simple and reliable in structure and convenient to assemble and disassemble.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically, it relates to an automobile suspension electronic throttle pedal with a hysteresis mechanism. Background Technology

[0002] Electronic throttle pedals precisely control the throttle opening in gasoline vehicles or the current and frequency of the electric motor in electric vehicles by outputting electrical signals, thus controlling engine speed and output torque. When the road surface is uneven or the pressure applied to the pedal is inconsistent, the electrical signal output will become unstable, causing the engine or motor speed and torque to fluctuate, resulting in unstable vehicle operation and increased safety hazards. Furthermore, because drivers need to exert considerable force to maintain the throttle pedal position, prolonged driving can easily lead to fatigue. Therefore, a car suspension-type electronic throttle pedal with a hysteresis mechanism has been developed. Utility Model Content

[0003] Therefore, this utility model provides a car suspension-type electronic throttle pedal with a hysteresis mechanism, which aims to solve the problem of improving the comfort and safety of the driver.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a car suspension-type electronic throttle pedal with a hysteresis mechanism, comprising a pedal link, a rotating shaft, a bushing, a base, a spring seat, a return spring, a friction block, a magnetic block assembly, a rocker pin, and an electronic box. The pedal link is rotatably mounted in the inner cavity of the base via the rotating shaft and the bushing. The spring seat is fixed to the tail of the base in a hinged manner at the middle position. One end of the return spring is fixed in the groove at the tail end of the spring seat, and the other end is fixed in the groove in the middle of the pedal link.

[0005] The spring seat is a lever mechanism, with the two arc surfaces at the middle position as fulcrums, supported on the inner cylindrical surface that matches the inner cavity at the rear end of the base. One end is provided with a spring mounting groove, and the other end is provided with a hinge shaft for fixing the friction block. The return spring is installed between the pedal connecting rod and the spring seat.

[0006] The friction block is fixed to the hinge shaft at the front end of the spring seat in a hinged manner. The arc surface at the top of the friction block is in contact with the arc surface in the middle of the pedal connecting rod. The two surfaces form relative rotational friction, generating a hysteresis force opposite to the rotation direction of the pedal connecting rod.

[0007] The rocker arm pin is press-fitted to the front end of the pedal linkage.

[0008] One end of the magnetic block assembly is fixed in the adapter hole on the front side of the base by a pin connection, and can rotate around the pin. The other end is an waist-shaped slide groove, in which the rocker pin can rotate and slide.

[0009] The electronic box is fixedly mounted on the base with self-tapping screws. The sensor inside the electronic box is coaxial with the magnetic block assembly, forming a rotating magnetic induction effect.

[0010] Preferably, the reset spring is a double cylindrical compression spring with different internal and external helical directions, and the springs are separated by a sponge sleeve.

[0011] Preferably, the friction block is injection molded from modified PP.

[0012] Preferably, the pedal linkage is divided into a transmission part and a foot pedal part, wherein the foot pedal part is an arc-shaped pedal that is higher in the middle and lower at both ends.

[0013] Preferably, the top surface of the foot pedal is provided with longitudinal protrusions and grooves.

[0014] Preferably, the protrusions and grooves are arranged at intervals, and the widths of the protrusions and grooves are the same.

[0015] Preferably, an annular recessed groove is provided on the outer ring of the top surface of the foot pedal, and the annular recessed groove is connected to each groove.

[0016] Preferably, each end of the annular recessed groove is provided with a drainage through hole, which is connected to the annular recessed groove.

[0017] Compared with existing technologies, the advantages of the automotive suspension electronic throttle pedal with hysteresis mechanism provided by this utility model are:

[0018] 1. The friction block has low friction noise and wear. Even if the friction block wears, it can be automatically compensated, which has little impact on the hysteresis force and improves the durability of the product.

[0019] 2. By using metal shafts and bushings, the deformation of the bearing under radial pressure is smaller, and the impact on the hysteresis force is smaller.

[0020] 3. The radial force on the magnetic block assembly is very small, which ensures the stability of the signal output.

[0021] 4. This hysteresis mechanism has a simple and reliable structure and is easy to assemble and disassemble.

[0022] 5. Increasing the friction between the pedal and the driver's shoe sole and reducing water residue on the shoe sole can increase the driver's driving safety. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an exploded view of the structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the pedal linkage.

[0027] Figure 4 This is a schematic diagram of the base structure;

[0028] Figure 5 This is a schematic diagram of the spring seat structure;

[0029] Figure 6 This is a schematic diagram of the friction block structure;

[0030] Figure 7 This is a schematic diagram of the foot pedal.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. Pedal linkage 2. Shaft 3. Bushing 4. Base 5. Spring seat 6. Friction block 7. Return spring 8. Electronic box 9. Rocker pin 10. Magnetic block assembly 11. Foot pedal 12. Annular recessed groove 13. Protrusion 14. Groove 15. Drainage hole 16. Self-tapping screw. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] like Figure 1-7 As shown, this utility model provides an automotive suspension-type electronic throttle pedal with a hysteresis mechanism, including a pedal linkage 1, a rotating shaft 2, a bushing 3, a base 4, a spring seat 5, a return spring 7, a friction block 6, a magnetic block assembly 10, a rocker pin 9, and an electronic box 8.

[0039] The pedal linkage 1 is rotatably mounted in the inner cavity of the base 4 via the pivot 2 and bushing 3. The spring seat 5 is fixed to the tail of the base 4 in a hinged manner at the middle position. One end of the return spring 7 is fixed in the groove at the tail end of the spring seat 5, and the other end is fixed in the groove in the middle of the pedal linkage 1.

[0040] The spring seat 5 is a lever mechanism, with the two arc surfaces at the middle position as fulcrums, supported on the inner cylindrical surface that matches the inner cavity at the rear end of the base 4. One end is provided with a spring mounting groove, and the other end is provided with a hinge shaft for fixing the friction block 6. The reset spring 7 is installed between the pedal connecting rod 1 and the spring seat 5.

[0041] The friction block 6 is fixed to the hinge shaft at the front end of the spring seat 5 in a hinged manner. The arc surface at the top of the friction block 6 is in contact with the arc surface in the middle of the pedal connecting rod 1. The two surfaces form relative rotational friction, generating a retardation force opposite to the rotation direction of the pedal connecting rod 1.

[0042] The rocker pin 9 is press-fitted to the front end of the pedal link 1;

[0043] The magnetic block assembly 10 is fixed at one end in the adapter hole on the front side of the base 4 by a pin connection and can rotate around the pin. The other end is a waist-shaped slide groove, and the rocker pin 9 can rotate and slide in the waist-shaped slide groove.

[0044] The electronic box 8 is fixedly mounted on the base 4 by self-tapping screws 16. The sensor inside the electronic box 8 is coaxial with the magnetic block assembly 10, forming a rotating magnetic induction effect.

[0045] The sensor inside the electronic box 8 is an electronic throttle pedal sensor GSF004N-B.

[0046] The magnetic block assembly 10 can be made by placing a permanent magnet inside a cover that matches the electronic box 8.

[0047] Specifically, the return spring 7 is a double cylindrical compression spring with different internal and external helical directions, which reduces the possibility of product failure due to spring fatigue. The springs are separated by a sponge sleeve to prevent scraping noises between them.

[0048] Specifically, the friction block 6 is injection molded from modified PP. It features low noise and low wear.

[0049] Specifically, the pedal linkage 1 is divided into a transmission part and a foot pedal part 11, and the foot pedal part 11 is an arc-shaped pedal that is high in the middle and low at both ends.

[0050] Specifically, the top surface of the foot pedal 11 is provided with a longitudinal protrusion 13 and a groove 14.

[0051] Specifically, the protrusions 13 and grooves 14 are arranged at intervals, and the protrusions 13 and grooves 14 have the same width.

[0052] Specifically, an annular recessed groove 12 is provided on the outer ring of the top surface of the foot pedal 11, and the annular recessed groove 12 is connected to each groove 14.

[0053] Specifically, each end of the annular recessed groove 12 is provided with a drainage through hole 15, which is connected to the annular recessed groove 12.

[0054] The friction block has low frictional noise and wear, and can automatically compensate for wear even if the friction block is worn, with little impact on the hysteresis force, thus improving the product's durability.

[0055] By using a metal shaft and bushing, the deformation of the bearing under radial pressure is smaller, and the impact on the hysteresis force is also smaller.

[0056] The magnetic block assembly experiences very little radial force, ensuring the stability of the signal output.

[0057] This hysteresis mechanism has a simple and reliable structure and is easy to assemble and disassemble.

[0058] Increasing the friction between the pedal and the driver's shoe sole and reducing water residue on the sole can improve driver safety.

[0059] When the driver presses the foot pedal 11, the pedal linkage 1 rotates around its axis, compressing the return spring 7. The rear end of the spring seat 5 generates a downward force that increases in magnitude. According to the lever principle, the front end of the spring seat 5 generates a reverse force that increases in magnitude, causing the friction block 6 to press against the outer arc surface of the pedal linkage 1, generating frictional resistance opposite to the rotation direction of the pedal linkage 1. Conversely, when the foot pedal 11 is released, the pedal linkage 1 rotates in the opposite direction, the return spring 7 rebounds, and the rear end of the spring seat 5 generates a downward force that decreases in magnitude, causing the friction block 6 to press against the outer arc surface of the pedal linkage 1, generating frictional resistance opposite to the rotation direction of the pedal linkage 1, thus creating a hysteresis effect. The overall force linearity is high, resulting in a more linear force output.

[0060] The protrusions 13 and grooves 14 increase the friction between the driver's shoe sole and the foot pedal 11. In rainy or snowy weather, or when there is water residue on the driver's shoe sole, water will enter the grooves 14 when the foot pedal 11 is stepped on. Due to the design of the foot pedal 11 being higher in the middle and lower on both sides, the water will flow to both sides, preventing water residue on the driver's shoe sole from causing slippage. Finally, the water will be drained onto the foot pad through the drainage holes 15 at the ends. For example, if the top surface of the foot pedal 11 is a quadrilateral structure, the drainage holes 15 are set at the four vertices. The drainage holes 15 can effectively drain water and prevent water from flowing along the pedal linkage 1 into the base 4, affecting the rotation mechanism.

[0061] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of automobile suspension electronic throttle pedal with hysteresis mechanism, including pedal connecting rod (1), rotating shaft (2), bushing (3), base (4), spring seat (5), reset spring (7), friction block (6), magnetic block assembly (10), swing bar pin (9) and electronic box (8), it is characterized in that: The pedal connecting rod (1) is rotatably installed in the inner cavity of base (4) by rotating shaft (2) and bushing (3), the middle position of spring seat (5) is fixed in the tail of base (4) in hinged manner, one end of reset spring (7) is fixed in the recess at the tail end of spring seat (5), and the other end is fixed in the recess in the middle of pedal connecting rod (1); The spring seat (5) is a lever mechanism, the two side arc surfaces of the middle position are fulcrums, are supported on the matching inner cylindrical surface in the inner cavity of the rear end of base (4), one end is provided with spring mounting groove, and the other end is provided with hinged shaft for fixing friction block (6), and reset spring (7) is installed between pedal connecting rod (1) and spring seat (5); The friction block (6) is fixed on the hinged shaft at the front end of spring seat (5) in hinged manner, the arc surface at the top of friction block (6) is attached to the arc surface in the middle of pedal connecting rod (1), and the two surfaces form relative rotating friction, which generates hysteresis force opposite to the rotating direction of pedal connecting rod (1); The swing bar pin (9) is connected to the front end of pedal connecting rod (1) in press-fit manner; The magnetic block assembly (10) is fixed in the matching hole in the front end side surface of base (4) in pin connection manner, can rotate around the pin, and the other end is a waist-shaped sliding groove, and swing bar pin (9) can rotate and slide in the waist-shaped sliding groove; The electronic box (8) is fixedly installed on base (4) by self-tapping screw (16), the sensor in electronic box (8) is coaxial with magnetic block assembly (10), forming rotating magnetic induction effect.

2. The electronic gas pedal with hysteresis mechanism for automotive suspension as claimed in claim 1 wherein: The reset spring (7) is a double-cylinder compression spring with different rotation directions inside and outside, and sponge sleeve is used to separate the springs.

3. The electronic gas pedal of claim 1, wherein: The friction block (6) is made of modified PP injection molding.

4. The electronic gas pedal of claim 1, wherein: The pedal connecting rod (1) is divided into transmission part and foot pedal part (11), and the foot pedal part (11) is arc-shaped pedal with high middle and low both ends.

5. The electronic gas pedal with hysteresis mechanism for automotive suspension as claimed in claim 4 wherein: The top surface of foot pedal part (11) is provided with longitudinal protrusions (13) and grooves (14).

6. The electronic gas pedal with hysteresis mechanism for automotive suspension as claimed in claim 5 wherein: The protrusions (13) and grooves (14) are arranged in intervals, and the widths of the protrusions (13) and grooves (14) are the same.

7. The electronic gas pedal with hysteresis mechanism for automotive suspension as claimed in claim 6 wherein: An annular recessed groove (12) is arranged at the outer circle of the top surface of foot pedal part (11), and the annular recessed groove (12) is communicated with each groove (14).

8. The electronic gas pedal of claim 7, wherein: Drainage through holes (15) are arranged at each end point of annular recessed groove (12), and the drainage through holes (15) are communicated with annular recessed groove (12).

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