CN119305515B - Electronic brake pedal - Google Patents

Abstract

The present invention provides an electronic brake pedal, which belongs to the technical field of vehicle electric brake systems. It solves the problems of insufficient braking safety of existing electronic brake pedals. The electronic brake pedal includes a shell, a magnetic field sensor, and a magnet that can be sensed by the magnetic field sensor. The top of the shell is hinged with a plate body, and a push rod that can slide up and down is inserted into the shell. The push rod is connected to an elastic member that makes the top of the push rod abut against the plate body. The push rod is fixedly connected to a mounting seat. An integrated block in the shape of a "concave" is fixed in the shell. The integrated block includes two lugs protruding toward the mounting seat and distributed in the circumferential direction of the push rod. A magnetic field sensor is fixed on at least one lug. The mounting seat has a protruding induction part inserted between the two lugs, and the magnet is fixed on the induction part. The elastic member is located below or above the mounting seat. The electronic brake pedal improves the safety of braking.

Description

Electronic brake pedal

Technical Field

The invention belongs to the technical field of electric brake systems of vehicles, and relates to an electronic brake pedal.

Background

The brake system is a system for forcibly reducing the movement speed of the sporting goods. The brake system of the vehicle includes a pedal, a booster, a brake pump, a brake, and the like, wherein the pedal is further divided into a mechanical brake pedal and an electric brake pedal. With the development of new energy automobiles, an electronic brake pedal is commonly applied to electric hybrid electric vehicles and pure electric vehicles.

For example, the utility model discloses a commercial vehicle braking foot valve and a commercial vehicle braking system [ bulletin number: CN218085484U ], the commercial vehicle braking foot valve comprises a braking pedal, a power supply, a mechanical braking circuit, a magnetic sensor and a braking quantity output circuit, wherein the braking pedal is connected with the mechanical braking circuit, the power supply is respectively connected with the mechanical braking circuit, the magnetic sensor and the braking quantity output circuit, a magnet which moves along with stepping is arranged in the braking pedal, the magnetic sensor is arranged around the magnet, the magnetic sensor is connected with the braking quantity output circuit, and a braking quantity signal output by the braking quantity output circuit changes along with the magnetic field intensity monitored by the magnetic sensor.

In the above-mentioned brake foot valve, the brake pedal includes plate body, body of rod and spring, and the magnet is fixed in the body of rod, and the spring housing is in the body of rod outside, and the magneto-sensitive sensor is located the outside of spring. When braking, the plate body rotates to drive the rod body to move downwards, the spring compresses, and the magnet moves downwards along with the rod body, so that the magnetic field intensity of the position of the magnetic sensor changes, the braking quantity signal output by the braking quantity output circuit changes along with the change, the controller receives the braking quantity signal, calculates the rod body stroke according to a preset formula, and then controls the braking system to output corresponding braking force according to the calculated rod body stroke. However, as the spring is positioned between the magnet and the magnetic sensor, the expansion and contraction of the spring also causes the change of the magnetic field distribution, so that the actual magnetic field intensity sensed by the magnetic sensor is slightly different from the theoretical magnetic field intensity, namely, the braking quantity signal received by the controller is a signal after being interfered, so that the downward movement stroke of the rod body calculated by the controller according to the braking quantity signal is different from the actual downward movement stroke of the rod body, and the braking force output by the braking system is deviated, thereby affecting the braking safety. To improve braking safety, it is common practice to select a non-magnetic spring.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides an electronic brake pedal which solves the technical problem of improving the braking safety.

The aim of the invention can be achieved by the following technical scheme:

The utility model provides an electronic brake pedal, includes casing, magnetic field sensor and can be by the magnet of magnetic field sensor response, the top of casing articulates there is the plate body, wear to be equipped with in the casing and slide from top to bottom the push rod, be connected with the elastic component that makes push rod top and plate body support on the push rod, a serial communication port, fixedly connected with mount pad on the push rod, the casing internal fixation has the integrated circuit that is "concave" font, the integrated circuit includes towards the mount pad protrusion setting and at two lugs that push rod circumference upwards distribute, is fixed with on at least one lug magnetic field sensor, have the convex and insert the induction part between two lugs on the mount pad, the magnet is fixed on the induction part, the elastic component is located the below or the top of mount pad.

When braking, the plate body swings downwards to drive the push rod to move downwards, the mounting seat fixed on the push rod synchronously moves downwards, the magnet moves downwards to enable the magnetic field sensor to sense the change of the magnetic field intensity, the signal output by the magnetic field sensor changes along with the change of the magnetic field intensity, and the braking force generated by the braking system correspondingly changes. Because the integrated block is concave, the sensing part where the magnet is located is inserted between two lugs of the integrated block, and the elastic piece is positioned below or above the mounting seat, so that the magnetic field sensor on the lug is close to the magnet, no other parts exist between the magnetic field sensor and the magnet, the closer to the magnet, the larger the magnetic field intensity is, the more obvious and accurate the magnetic field change sensed when the magnet moves, therefore, the arrangement not only enables the magnetic field sensor to be close to the magnet and sense the more obvious magnetic field change, but also enables the magnetic field to have no interference of other parts, and signals output by the magnetic field sensor to be stable and accurate, thereby enabling a braking system to generate accurate and stable braking force, and improving the braking safety.

In the above-mentioned electronic brake pedal, the sensing portion includes a cylindrical insertion tube disposed along an axial direction of the push rod, and the magnet is columnar and fixed in the insertion tube.

The insertion cylinder has fixing and protecting functions on the magnet, and ensures that the position and magnetic force of the magnet are stable, so that signals output by the magnetic field sensor are stable and accurate, and the braking safety is improved.

In the above electronic brake pedal, the sensing portion further comprises two protruding blocks located at two sides of the insertion barrel respectively, the side face, facing the integrated block, of the protruding blocks comprises a vertically arranged positioning surface and an inclined surface which is inclined relative to the positioning surface and away from the direction of the integrated block, the inclined surface is located above the positioning surface, at least a micro switch corresponding to one protruding block is arranged on the integrated block, and a contact of the micro switch abuts against the positioning surface.

When the push rod moves downwards, the contact of the micro switch slides from the positioning surface to the inclined surface and finally breaks away from the convex block, and a switch signal can be generated when the contact of the micro switch breaks away from the positioning surface. When the push rod moves downwards, the magnetic field sensed by the magnetic field sensor can change, the micro switch can generate a switch signal, and the switch signal of the micro switch can be used for controlling the lighting of a brake lamp, so that the braking safety is improved, and the micro switch can also be used as other control signals. In addition, the protruding block is positioned between the inserting cylinder and the protruding lug, the magnet and the magnetic field sensor can be properly separated by a certain distance by the protruding block, signal fluctuation caused by too close of the magnetic field sensor and the magnet is avoided, and braking safety is improved.

In the electronic brake pedal, the outer side surface of the mounting seat is provided with the extension arm which is arranged in a protruding mode, and the sensing part is located at the outer end of the extension arm. The arrangement of the extension arm enables the sensing part to be further away from the elastic piece, interference of the elastic piece is reduced, and braking safety is improved.

In the electronic brake pedal, the two side surfaces of the extension arm are provided with the convex positioning blocks, the cavity wall surface of the inner cavity of the shell is provided with the positioning planes corresponding to the positioning blocks one by one, the positioning planes are vertically arranged, and the positioning blocks are abutted to the corresponding positioning planes. The cooperation of locating plane and locating piece makes the mount pad circumference location in the casing, avoids the mount pad to take place to rotate and arouses the change of magnetic field sensor signal, has improved the security of braking.

In the electronic brake pedal, the outer side face of the push rod is provided with the convex annular convex ring, the mounting seat and the elastic piece are respectively positioned on two sides of the convex ring, the cavity wall face of the inner cavity of the shell is provided with the cylindrical surface-shaped matching surface, and the outer side face of the convex ring is matched with the matching surface.

The convex ring not only can separate the mounting seat and the elastic piece, avoids the interference of the elastic piece to the magnetic field of the magnet, but also has the functions of sliding guide and radial positioning to the push rod, and the push rod accurately and stably moves up and down in the shell, namely, the magnet on the mounting seat moves up and down accurately and stably, so that the signal output by the magnetic field sensor is stable and accurate, the braking system generates accurate and stable braking force, and the braking safety is improved.

In the electronic brake pedal, the mounting seat is sleeved on the push rod, a nut is connected to the push rod above the mounting seat in a threaded manner, an adjusting spring is connected between the mounting seat and the push rod, the adjusting spring is located below the mounting seat, and the mounting seat abuts against the nut under the action of the adjusting spring.

When the installation seat needs to be adjusted at the upper and lower positions of the push rod, the nut is screwed, and the installation seat moves up and down along with the nut under the action of the adjusting spring. The upper and lower positions of the magnet are also adjusted after the position of the mounting seat is adjusted, so that the signal output by the magnetic field sensor is accurate, and the braking safety is improved.

In the electronic brake pedal, the circuit board is further fixed in the shell, the integrated block is located between the circuit board and the push rod, the integrated block is fixedly connected to the circuit board, the magnetic field sensor and the micro switch are electrically connected with the circuit board, the shell is further fixed with the socket protruding outwards, and the socket is electrically connected with the circuit board.

The circuit board is integrally fixed in the shell, so that the electronic brake pedal is compact in structure and convenient to install on a vehicle.

In the electronic brake pedal, the bottom of the shell is fixed with the shaft sleeve, and the bottom end of the push rod is inserted into the shaft sleeve to form clearance fit. The shaft sleeve has guiding and positioning functions on the push rod, so that the push rod can slide up and down accurately, the output signal of the magnetic field sensor is accurate, and the braking safety is improved.

In the electronic brake pedal, the two lugs are both fixed with the magnetic field sensors, and the two microswitches are in one-to-one correspondence with the convex blocks.

When one magnetic field sensor fails, the other magnetic field sensor can still work, so that normal braking is ensured, and the braking safety is improved. The signals output by the two magnetic field sensors are added to be a fixed value or are in a proportional relation, so that the magnetic field sensor has a self-diagnosis function, and has the characteristic of realizing whether the signals can be mutually diagnosed accurately when the output signals are abnormal or the functions of components are invalid.

Compared with the prior art, the invention has the following advantages:

The electronic brake pedal has stable output signal and good consistency, and improves the braking safety. In addition, the electronic brake pedal is compact in structure, small in appearance and capable of saving installation space. In addition, the electronic brake pedal has the double-signal redundancy function and the double-signal correlation function, and ensures the braking safety.

Drawings

Fig. 1 is a perspective view of the present electronic brake pedal.

Fig. 2 is a cross-sectional view of the present electronic brake pedal.

Fig. 3 is a partial cross-sectional view taken along the direction A-A in fig. 2.

Fig. 4 is a partial cross-sectional view in the direction B-B of fig. 3 (rotated 90 ° clockwise).

Fig. 5 is a partial cross-sectional view in the direction C-C of fig. 3.

Fig. 6 is a perspective view of the present electronic brake pedal mount and manifold block.

Fig. 7 is a schematic circuit diagram of the present electronic brake pedal.

Fig. 8 is a characteristic curve of the present electronic brake pedal.

1, A shell, 1a, a main body, 1a1, a positioning plane, 1a2, a matching surface, 1b, a mounting plate, 1c, a cover plate, 2, a plate body, 2a, a limit protrusion, 3, a push rod, 3a, a convex ring, 4, an elastic piece, 5, a mounting seat, 5a, an extension arm, 5b, a sensing part, 5b1, a plug cylinder, 5b2, a bump, 5b2a, a positioning surface, 5b2b, an inclined surface, 5c, a positioning block, 6, an integrated block, 6a, a lug, 7, a magnetic field sensor, 8, a micro switch, 9, a magnet, 10, a circuit board, 11, a socket, 12, a nut, 13, an adjusting spring, 14, an adjusting bolt, 15, a roller, 16, a bushing, 17, a push rod sleeve, 18, a shaft sleeve, P1, a brake lamp lighting starting position, P2, an auxiliary braking starting position, P3, an EMB motor working starting position, S, a stroke, alpha, a plate body rotating angle, F, pedal force, t and signal pulse time.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1 and 2, an electronic brake pedal comprises a shell 1 and a plate body 2, wherein a push rod 3 capable of sliding up and down is arranged in the shell 1 in a penetrating way, and an elastic piece 4 enabling the top end of the push rod 3 to abut against the plate body 2 is connected to the push rod 3. The housing 1 includes a main body 1a, a mounting plate 1b, and a cover plate 1c, and the plate body 2 has a long plate shape. The main body 1a is provided with a mounting cavity with an opening at the top, the mounting plate 1b is covered on the top end of the main body 1a and is fixedly connected with the main body 1a through a bolt, a connecting port communicated with the mounting cavity is formed in the side part of the main body 1a, and the cover plate 1c is covered at the connecting port of the main body 1a and is fixedly connected with the main body 1a through a bolt. The top surface of the mounting plate 1b is provided with two hinge lugs protruding upwards, and one end of the plate body 2 is embedded between the two hinge lugs and hinged with the hinge lugs through a pin shaft. The plate body 2 is obliquely arranged relative to the connecting plate, and the other end of the plate body 2 is higher than the hinge lug. The lower surface of the plate body 2 is connected with a roller 15, and the roller 15 is positioned above the pin shaft. The lower surface of the plate body 2 is also provided with a limiting protrusion 2a, the mounting plate 1b is correspondingly in threaded connection with an adjusting bolt 14 through the limiting protrusion 2a, and the limiting protrusion 2a can be abutted against the head of the adjusting bolt 14. The adjusting bolt 14 is screwed with a lock nut, and the lock nut abuts against the top surface of the mounting plate 1 b. The cooperation of the adjusting bolt 14 and the limiting projection 2a serves to limit the initial inclination angle of the plate body 2, i.e. the angle between the plate body 2 and the mounting plate 1b, which is typically 40-46, such as 43. When the initial inclination angle of the plate body 2 is required to be adjusted, the locking nut is unscrewed, then the adjusting bolt 14 is rotated to adjust the head height of the adjusting bolt 14, and the locking nut is screwed again after the adjustment is completed.

As shown in fig. 2, a cylindrical mounting cylinder is provided below the roller 15 on the mounting plate 1b, a bush 16 is fixed in the mounting cylinder, a push rod sleeve 17 capable of sliding up and down is inserted in the bush 16, and the outer side surface of the roller 15 abuts against the top surface of the push rod sleeve 17. The push rod 3 is inserted in the main body 1a, and the tip of the push rod 3 is inserted into the push rod sleeve 17 and abuts against the push rod sleeve 17. A sleeve 18 is fixed to the bottom of the main body 1a, and the bottom end of the push rod 3 is inserted into the sleeve 18 and forms a clearance fit. The push rod 3 is sleeved with an annular mounting seat 5, the outer side surface of the push rod 3 is provided with a convex annular convex ring 3a, the mounting seat 5 is positioned above the convex ring 3a, and the elastic piece 4 is positioned below the convex ring 3 a. The cavity wall surface of the main body 1a mounting cavity is provided with a cylindrical surface-shaped matching surface 1a2, the outer side surface of the convex ring 3a is matched with the matching surface 1a2, and the outer side surface of the convex ring 3a is in clearance fit with the matching surface 1a 2. The elastic piece 4 is a pressure spring, the pressure spring is sleeved on the push rod 3, and two ends of the pressure spring respectively lean against the convex ring 3a and the bottom wall of the main body 1 a. A gasket is arranged between the pressure spring and the bottom wall of the main body 1a, so that the bottom wall of the main body 1a is uniformly stressed. A circuit board 10 is fixed between the cover plate 1c and the main body 1a, a socket 11 protruding outwards is arranged on the cover plate 1c, and the socket 11 is electrically connected with the circuit board 10.

As shown in fig. 2, a nut 12 is screwed on the push rod 3 above the mounting seat 5, an adjusting spring 13 is connected between the mounting seat 5 and the push rod 3, the adjusting spring 13 is located below the mounting seat 5, and the mounting seat 5 abuts against the nut 12 under the action of the adjusting spring 13. The adjusting spring 13 is sleeved on the push rod 3, a gasket is arranged between the top end of the adjusting spring 13 and the mounting seat 5, and the bottom end of the adjusting spring 13 is abutted against the convex ring 3 a. When the position of the mounting seat 5 needs to be adjusted, the mounting seat 5 is driven to slide up and down on the push rod 3 by the rotating nut 12. An abutting gasket is arranged between the nut 12 and the mounting seat 5, so that friction between the nut 12 and the mounting seat 5 during adjustment can be reduced.

As shown in fig. 2 and 3, an integrated block 6 in a concave shape is fixed at the connection port of the main body 1a, and the integrated block 6 includes two lugs 6a protruding toward the mounting seat 5 and distributed in the circumferential direction of the push rod 3, and the two lugs 6a are symmetrically arranged. The integrated block 6 is located between the circuit board 10 and the mounting seat 5 and is fixedly connected to the circuit board 10, and one side of the integrated block 6, which is away from the mounting seat 5, is provided with a plurality of pins, and the pins are inserted into the circuit board 10 and are fixed. The two lugs 6a are fixedly connected with magnetic field sensors 7, the magnetic field sensors 7 can be magneto-resistance sensors, such as TMR linear magnetic field sensor chips, the voltage signal range is 0.5V-5V, and the magnetic field sensors can also be other sensors capable of inducing magnetic fields, such as Hall sensors, magneto-sensitive transistors and the like. As shown in fig. 4, the outer side surface of the mounting seat 5 is provided with an extension arm 5a protruding toward the integrated block 6, the outer end of the extension arm 5a is provided with a sensing portion 5b protruding and inserted between the two lugs 6a, a magnet 9 which can be sensed by the magnetic field sensor 7 is fixed in the sensing portion 5b, and the magnet 9 can be magnetic steel or magnet. The sensing portion 5b includes a cylindrical insertion tube 5b1 provided along the axial direction of the push rod 3, and the magnet 9 is columnar and fixed in the insertion tube 5b 1. As shown in fig. 5, the sensing portion 5b further includes two protruding blocks 5b2 located at two sides of the socket 5b1, the side surface of the protruding block 5b2 facing the integrated block 6 includes a positioning surface 5b2a vertically arranged and an inclined surface 5b2b inclined to the push rod 3 relative to the positioning surface 5b2a, and the inclined surface 5b2b is located above the positioning surface 5b2 a. The integrated block 6 is provided with micro-switches 8 in one-to-one correspondence with the bumps 5b2, and contacts of the micro-switches 8 can be abutted against the positioning surfaces 5b2a of the corresponding bumps 5b 2.

As shown in fig. 3 and 6, both side surfaces of the extension arm 5a are provided with protruding positioning blocks 5c, and the wall surface of the installation cavity of the main body 1a is provided with positioning planes 1a1 corresponding to the positioning blocks 5c one by one, and the positioning planes 1a1 are vertically arranged. The positioning block 5c is provided with a matching plane opposite to the positioning plane 1a1, and the matching plane of the positioning block 5c is abutted against the corresponding positioning plane 1a 1. The positioning block 5c is located below the bump 5b2, and the bump 5b2 protrudes out of the positioning block 5c in a direction towards the integrated block 6, and a gap is formed between the magnetic field sensor 7 and the positioning block 5c, so that interference is avoided.

As shown in fig. 7, GND1 and GND2 each represent a power supply negative electrode. The two micro switches 8 and the two magnetic field sensors 7 form two-way signals, the magnetic field sensors 7 are TMR linear magnetic field sensor chips, the two TMR linear magnetic field sensor chips respectively output PWM1 signals and PWM2 signals, the two micro switches 8 are normally closed switches and normally open switches respectively, and the two micro switches 8 respectively output SW1 signals and SW2 signals when in action. The SW1 signal or the SW2 signal is used for controlling the lighting of the brake lamp, the two magnetic field sensors 7 are used for detecting the stroke S of the push rod 3, and the PWM1 signal and the PWM2 signal are used for calculating the stroke S of the push rod 3 and the rotation angle alpha of the plate body 2.

As shown in fig. 8, the characteristic curves of the PWM1 signal and the PWM2 signal are linear curves in direct proportion or inverse proportion to the stroke S of the push rod 3, and the PWM1 signal and the PWM2 signal are added to a fixed value. The characteristic curve of the PWM1 signal is a linear curve in direct proportion to the stroke S of the push rod 3, and the characteristic curve of the PWM2 signal is a linear curve in inverse proportion to the stroke S of the push rod 3, and pwm1+pwm2=4420. The pedal force F is a linear curve proportional to the stroke S of the push rod 3. Alternatively, the PWM1 signal and the PWM2 signal may be proportional, for example, the characteristic curves of the PWM1 signal and the PWM2 signal are both linear curves proportional to the stroke S of the push rod 3, and the division ratio of PWM1 and PWM 2=a fixed value, which may be 1. Thus, when a change in the fixed value is detected, a brake system failure can be fed back.

Before braking, as shown in fig. 2, the elastic member 4 acts on the push rod 3 to make the push rod 3 prop against the plate body 2, the plate body 2 keeps an upward inclined state, at this time, the positioning surface 5b2a of the protruding block 5b2 props against the contact of the micro switch 8, no signal is output by the two magnetic field sensors 7 and the two micro switches 8, and the stroke S of the push rod 3 and the rotation angle α of the plate body 2 are both zero. During braking, a downward pedal force F is applied to the plate body 2, the plate body 2 rotates downward, so that the push rod 3 is driven to move downward, and the elastic piece 4 compresses to form a pedal damping force. When the rotation angle alpha of the plate body 2 is 3 degrees to 4 degrees, the stroke S of the push rod 3 is 1.1 mm mm to 1.5mm, the contact of the micro switch 8 is separated from the positioning surface 5b2a, a SW1 signal or a SW2 signal is output, and the brake lamp is lightened, as shown in the P1 position in fig. 8. When the plate body 2 continues to rotate downwards and the rotation angle alpha of the plate body 2 is 5 degrees, the stroke S of the push rod 3 is 1.9 mm, and auxiliary braking is started, as shown in the position P2 in fig. 8. When the rotation angle alpha of the plate body 2 is 5.5 degrees, the stroke S of the push rod 3 is 2.05 mm, and the EMB motor is started, as shown in the position P3 in fig. 8.

The electronic brake pedal is a transmission device which is provided with functions of converting the stroke or angle of stepping on the pedal into an electric signal and a switch signal so as to control an automobile retarding system, a brake energy recovery system, an electric brake system and the like to realize the braking process and the releasing process, is mainly applied to an electric control braking system of an electric hybrid automobile and a pure electric automobile, and adopts the working principle that the electronic brake pedal is assembled into a signal detection module according to a specified matching position through two TMR linear magnetic field sensor chips and a magnet 9, and meanwhile, two micro switches 8 are arranged on a PCB (printed circuit board) 10 and are contacted with two convex blocks 5b2 of an installation seat 5, and when a person steps on the pedal, the stroke S of a push rod 3 is converted into a PWM signal and a switch signal.

The electronic brake pedal has the advantages of accurate and stable output signals, improved braking safety, double-channel signal redundancy function, braking safety guarantee, signal correlation function, equal to a fixed value or proportional relation of two paths of signals, self-diagnosis function, capability of mutually diagnosing whether the signals are accurate or not when the output signals are abnormal or the functions of components are invalid, good electromagnetic compatibility, capability of normal working in an electromagnetic environment and no electromagnetic disturbance which cannot be borne by anything in the environment, low working voltage, low power consumption due to the adoption of DC5V voltage, stable and consistent output signals, compact structure, small appearance and installation space saving.

Example two

The elastic member 4 is disposed above the mount, and the other structure is substantially the same as that of the first embodiment. The elastic piece 4 is a tension spring, and the upper end and the lower end of the tension spring are respectively connected to the mounting plate 1b and the push rod 3.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (8)

1. The utility model provides an electronic brake pedal, includes casing (1), magnetic field sensor (7) and can be by magnet (9) of magnetic field sensor (7) response, the top of casing (1) articulates there is plate body (2), wear to be equipped with in casing (1) push rod (3) that can reciprocate, be connected with on push rod (3) and make push rod (3) top and elastic component (4) that plate body (2) supported, characterized in that, fixedly connected with mount pad (5) on push rod (3), be fixed with integrated piece (6) of being "concave" font in casing (1), integrated piece (6) are including towards mount pad (5) protrusion setting and at push rod (3) circumference two lugs (6 a) that distribute, are fixed with on at least one lug (6 a) magnetic field sensor (7), be equipped with on mount pad (5) protruding and insert between two lugs (6 a) response portion (5 b), magnet (9) are fixed on response portion (5 b) and are in order to take shape in the cylinder-shaped magnet (5) are fixed on the mount pad (5) and are in cylinder-shaped (5) are fixed in cylinder-shaped (5 b) are located in cylinder-shaped (5) direction (1), the sensing part (5 b) further comprises two protruding blocks (5 b 2) which are respectively arranged on two sides of the inserting cylinder (5 b 1), the side face, facing the integrated block (6), of each protruding block (5 b 2) comprises a vertically arranged locating surface (5 b2 a) and an inclined surface (5 b2 b) which is obliquely arranged relative to the locating surface (5 b2 a) and far away from the integrated block (6), the inclined surface (5 b2 b) is arranged above the locating surface (5 b2 a), a micro switch (8) which corresponds to at least one protruding block (5 b 2) is arranged on the integrated block (6), and a contact of the micro switch (8) is abutted to the locating surface (5 b2 a).

2. An electronic brake pedal according to claim 1, characterized in that the mounting seat (5) has a convexly arranged extension arm (5 a) on the outer side thereof, the sensing portion (5 b) being located on the outer end of the extension arm (5 a).

3. The electronic brake pedal according to claim 2, wherein the two side surfaces of the extension arm (5 a) are provided with protruding positioning blocks (5 c), the cavity wall surface of the inner cavity of the shell (1) is provided with positioning planes (1 a 1) corresponding to the positioning blocks (5 c) one by one, the positioning planes (1 a 1) are vertically arranged, and the positioning blocks (5 c) are abutted against the corresponding positioning planes (1 a 1).

4. An electronic brake pedal according to any one of claims 1-3, wherein the outer side surface of the push rod (3) is provided with a convex annular convex ring (3 a), the mounting seat (5) and the elastic piece (4) are respectively positioned at two sides of the convex ring (3 a), the cavity wall surface of the inner cavity of the shell (1) is provided with a cylindrical surface-shaped matching surface (1 a 2), and the outer side surface of the convex ring (3 a) is matched with the matching surface (1 a 2).

5. An electronic brake pedal according to any one of claims 1-3, characterized in that the mounting seat (5) is sleeved on the push rod (3), a nut (12) is connected to the push rod (3) above the mounting seat (5) in a threaded manner, an adjusting spring (13) is connected between the mounting seat (5) and the push rod (3), the adjusting spring (13) is located below the mounting seat (5), and the mounting seat (5) abuts against the nut (12) under the action of the adjusting spring (13).

6. An electronic brake pedal according to any one of claims 1-3, characterized in that a circuit board (10) is further fixed in the housing (1), the integrated block (6) is located between the circuit board (10) and the push rod (3), the integrated block (6) is fixedly connected to the circuit board (10), the magnetic field sensor (7) and the micro switch (8) are electrically connected to the circuit board (10), an outwardly protruding socket (11) is further fixed on the housing (1), and the socket (11) is electrically connected to the circuit board (10).

7. An electronic brake pedal according to any one of claims 1-3, characterized in that the bottom of the housing (1) is fixed with a sleeve (18), the bottom end of the push rod (3) being inserted in the sleeve (18) and forming a clearance fit.

8. An electronic brake pedal according to any one of claims 1-3, characterized in that the magnetic field sensor (7) is fixed to both lugs (6 a), and the micro-switches (8) are two and in one-to-one correspondence with the projections (5 b 2).