Brake pedal assembly, vehicle and control method of brake pedal assembly

Abstract

The invention discloses a brake pedal assembly, a vehicle and a control method of the brake pedal assembly.The brake pedal assembly comprises a pedal base, a pedal arm, a connecting shaft and a driving part, the two ends of the connecting shaft are connected with the pedal base, the connecting shaft comprises a first shaft section and a second shaft section, and the first shaft section and the second shaft section extend in the first direction; the axis of the first shaft section and the axes of the second shaft sections are arranged in a non-collinear mode, the two ends of the first shaft section are each connected with one second shaft section, and the driving piece is in transmission connection with the first shaft section and the second shaft sections so as to adjust the distance between the axis of the first shaft section and the axes of the second shaft sections in the radial direction. According to the brake pedal assembly, the driving piece is arranged to adjust the position of the first shaft section, so that adjustment of the position of the pedal face is driven, each driver can adjust the most comfortable pedal angle according to the body shape and the driving habit of the driver, driving fatigue is reduced, driving safety is enhanced, and leg pressure is relieved for long-time driving.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular, to a brake pedal assembly, a vehicle, and a control method for the brake pedal assembly. Background Art

[0002] Related technologies indicate that the brake pedals of most vehicles on the current market are designed to be fixed. In this way, the position and angle of the brake pedal are determined during vehicle manufacturing and cannot be adjusted individually according to different drivers. This fixed design has several problems:

[0003] 1. Adaptability problem: Drivers of different heights have different requirements for the brake pedal. For example, tall drivers may find the pedal too close, while short drivers may find it difficult to step on the pedal comfortably. This not only affects driving comfort but may also affect reaction speed.

[0004] 2. Safety risks: An inappropriate pedal position may cause the driver to be unable to operate the braking system quickly or accurately in an emergency, thus increasing the risk of accidents. For example, if the pedal position requires the driver to stretch their leg to step on it, then in an emergency braking situation, this inconvenience may lead to a delayed response.

[0005] 3. Differences in driving habits: In addition to height factors, different drivers have different driving habits. Some drivers prefer to operate the brake pedal at a specific angle or posture to better control the vehicle. However, the fixed pedal restricts the satisfaction of this personalized need. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a brake pedal assembly with high safety, reliability, and comfort.

[0007] The present invention also provides a vehicle having the above brake pedal assembly.

[0008] The present invention also provides a control method for the above brake pedal assembly.

[0009] The brake pedal assembly according to the first aspect of the present invention includes: a pedal base, a pedal arm, a connecting shaft, and a driving member. Both ends of the connecting shaft are connected to the pedal base, the pedal arm is connected to the connecting shaft. The connecting shaft includes a first shaft section and a second shaft section. Both the first shaft section and the second shaft section extend along a first direction, and the axes of the first shaft section and the second shaft section are not collinear. Two ends of the first shaft section are respectively connected to one second shaft section. The driving member is drivably connected to both the first shaft section and the second shaft section to adjust the distance between the axes of the first shaft section and the second shaft section in the radial direction.

[0010] In the brake pedal assembly according to the present invention, by arranging the driving member to be drivably connected to the first shaft section and the second shaft section to adjust the distance between the axes of the first shaft section and the second shaft section in the radial direction, the lifting of the first shaft section is adjusted, thereby driving the adjustment of the position of the pedal surface. Each driver can adjust the most comfortable pedal angle according to their own body type and driving habits. The correct and comfortable pedal angle reduces driving fatigue, improves reaction speed, enhances driving safety, ensures the reliability of the brake pedal assembly, and helps to relieve leg pressure during long-term driving.

[0011] In some embodiments, the first shaft section has a first connecting section extending along a second direction perpendicular to the first direction, and the second shaft section has a second connecting section extending along a second direction perpendicular to the first direction. The driving member drives the first connecting section and the second connecting section to move relatively along the second direction.

[0012] In some embodiments, a transmission member is provided between the first connecting section and the second connecting section. The transmission member is drivably connected to the driving member. A first mating portion is formed on one of the first connecting section and the second connecting section, and a second mating portion is formed on the transmission member. The first connecting section and the second connecting section are mutually mated and driven through the first mating portion and the second mating portion.

[0013] In some embodiments, the transmission member is a ball screw. One end of the ball screw is connected to the driving member, the second mating portion is formed on the outer peripheral wall of the ball screw, and the first mating portion is adapted to the shape of the second mating portion.

[0014] In some embodiments, the driving member is a driving motor. The driving motor is disposed on one of the first connecting section and the second connecting section. A mating hole is formed on the other of the first connecting section and the second connecting section. The mating hole extends along the second direction and the opening faces the direction where the driving motor is located. The first mating portion is formed on the inner peripheral wall of the mating hole, and the other end of the ball screw extends into the mating hole.

[0015] In some embodiments, an installation groove is formed on the pedal base, the top end of the pedal arm is adapted to extend into the installation groove and be connected to the first shaft section, and a foot pedal is connected to the bottom end of the pedal arm.

[0016] In some embodiments, the pedal base is formed with a first connection hole, and both ends of the connecting shaft are passed through the first connection hole; and / or, the top end of the pedal arm is formed with a second connection hole, the first shaft section extends into the second connection hole, and a shaft sleeve is provided between the first shaft section and the pedal arm.

[0017] In some embodiments, the brake pedal assembly further includes: a control module and a control panel, the control module is electrically connected to the driving member, and the control panel is electrically connected to the control module; a memory module, the memory module is electrically connected to the control module to store the rotation angle of the ball screw.

[0018] A vehicle according to the second aspect of the present invention includes the brake pedal assembly according to the first aspect of the present invention above.

[0019] By providing the brake pedal assembly of the first aspect above, the vehicle according to the present invention improves the safety and stability of the vehicle and enhances the driving experience of the vehicle.

[0020] A control method for a brake pedal assembly according to a third aspect of the present invention, the brake pedal assembly being the brake pedal assembly according to the first aspect of the present invention above, the control method comprising:

[0021] Step S1, obtaining an input instruction;

[0022] Step S2, determining whether the vehicle is in a target state;

[0023] Step S3, if the vehicle is in the target state, determining whether the vehicle is in a first state or a second state; if the vehicle is not in the target state, performing a reminder action;

[0024] Step S4, if the vehicle is in the first state, confirming whether the surrounding of the vehicle is in a safe environment and determining whether the foot pedal is operated within a preset time; if the vehicle is in the second state, performing step S6;

[0025] Step S5, if the surrounding of the vehicle is safe and the brake pedal assembly is not operated within the preset time, performing step S6; if the surrounding of the vehicle is not safe and / or the brake pedal assembly is operated within the preset time, performing a reminder action;

[0026] Step S6, adjusting the brake pedal assembly.

[0027] Further, step S6 includes:

[0028] Step S6.1: Obtain the current number of rotation cycles n of the drive motor and the adjustment spacing L of the transmission component;

[0029] In step S6.2, the height adjustment amount of the connecting shaft is h a = n * L;

[0030] Step S6.3: Set the distance OA between the connecting shaft and the fulcrum and the distance OB between the foot pedal and the fulcrum. The distance OA between the connecting shaft and the fulcrum and the distance OB between the foot pedal and the fulcrum satisfy: OB / OA = k;

[0031] Step S6.4: Calculate the displacement of the foot pedal. The formula is: h b = k * h a .

[0032] In some embodiments, the target state is the automatic / assisted driving state or the stationary state. The target state includes a first state and a second state. The first state is the automatic / assisted driving state, and the second state is the stationary state.

[0033] According to the control method of the brake pedal assembly of the present invention, the mechanical adjustment process can be automatically completed without manual adjustment, which simplifies the operation process, increases the convenience of adjustment, improves the response speed of the system, is more accurate than manual adjustment, can better meet the subtle difference requirements of different users for the foot pedal position, and ensures the stability of the brake pedal assembly, thereby ensuring the driving safety of the vehicle.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of a brake pedal assembly according to an embodiment of the present invention;

[0036] Figure 2 is Figure 1 a schematic diagram of the connecting shaft shown in

[0037] Figure 3 is Figure 2 a schematic structural diagram of the connecting shaft shown in

[0038] Figure 4 is a flowchart of a control method for a brake pedal assembly according to an embodiment of the present invention;

[0039] Figure 5 is Figure 4 a flowchart of step S6 shown in

[0040] Figure 6 is Figure 1 a schematic diagram of the adjustment displacement of the brake pedal assembly shown in

[0041] Figure 7 a relationship curve graph of the rising / falling distance of the connecting shaft and the rising / falling distance of the foot pedal.

[0042] Reference numerals:

[0043] 100. Brake pedal assembly; 1. Pedal base; 11. Mounting groove; 12. First connection hole; 2. Pedal arm; 21. Foot pedal; 22. Second connection hole; 3. Connecting shaft; 31. First shaft section; 32. Second shaft section; 331. First connection section; 332. Second connection section; 333. Fitting hole; 4. Driving member; 5. Ball screw. Detailed implementation manners

[0044] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] It is pointed out in the related art that most of the brake pedals of current vehicles on the market are designed to be fixed, so the position and angle of the brake pedal are determined during vehicle manufacturing and cannot be adjusted individually according to different drivers. There are several problems with this fixed design:

[0046] 1. Adaptability problem: Drivers of different heights have different requirements for the brake pedal. For example, a tall driver may find the pedal too close, while a short driver may find it difficult to step on the pedal comfortably. This not only affects driving comfort but also may affect the reaction speed.

[0047] 2. Safety risk: An inappropriate pedal position may cause the driver to be unable to operate the braking system quickly or accurately in an emergency, thus increasing the risk of accidents. For example, if the pedal position requires the driver to stretch their leg to step on it, then in an emergency braking situation, this inconvenience may lead to a delayed response.

[0048] 3. Driving habit differences: In addition to height factors, different drivers have different driving habits. Some drivers prefer to operate the brake pedal at a specific angle or posture to better control the vehicle. However, the fixed pedal limits the satisfaction of this personalized need.

[0049] Therefore, how to solve the above problems has become an urgent issue to be addressed. Based on the above considerations, in order to adjust the leverage ratio of the pedal arm and ensure that each driver can adjust the most comfortable pedal angle according to their body type and driving habits, a braking pedal assembly and its control method are designed.

[0050] Next, refer to Figures 1-3 to describe the braking pedal assembly 100 according to an embodiment of the first aspect of the present invention.

[0051] As Figure 1 shown, the braking pedal assembly 100 according to an embodiment of the first aspect of the present invention includes: a pedal base 1, a pedal arm 2, a connecting shaft 3, and a driving member 4.

[0052] Specifically, as Figure 2 and Figure 3 shown, both ends of the connecting shaft 3 are connected to the pedal base 1, the pedal arm 2 is connected to the connecting shaft 3, the connecting shaft 3 includes a first shaft section 31 and a second shaft section 32. Both the first shaft section 31 and the second shaft section 32 extend along a first direction, the axis of the first shaft section 31 and the axis of the second shaft section 32 are not collinear. Both ends of the first shaft section 31 are respectively connected to a second shaft section 32. The driving member 4 is drivably connected to both the first shaft section 31 and the second shaft section 32 to adjust the distance between the axis of the first shaft section 31 and the axis of the second shaft section 32 in the radial direction.

[0053] It can be understood that the pedal base 1 is the basic part of the entire braking pedal assembly 100. The pedal base 1 is fixedly connected to the vehicle body, providing an installation platform for the pedal arm 2. The pedal arm 2 is connected to the connecting shaft 3. The connecting shaft 3 consists of two parts: a first shaft section 31 and a second shaft section 32. Both ends of the first shaft section 31 are respectively connected to a second shaft section 32. Both the first shaft section 31 and the second shaft section 32 extend along a first direction, but the axis of the first shaft section 31 and the axis of the second shaft section 32 are not collinear. The driving member 4 is drivably connected to both the first shaft section 31 and the second shaft section 32, used to adjust the distance between the axis of the first shaft section 31 and the axis of the second shaft section 32 in the radial direction, thereby changing the angle of the pedal arm 2, enabling the driver to adjust the position of the foot pedal 21 according to their needs.

[0054] The principle of realizing the adjustment function of the braking pedal assembly 100: When the driving member 4 operates, the relative position between the first shaft section 31 and the second shaft section 32 is adjusted. Since the first shaft section 31 and the second shaft section 32 are not collinear, when the distance between the first shaft section 31 and the second shaft section 32 changes, the angle of the pedal arm 2 relative to the pedal base 1 changes, realizing fine adjustment of the angle of the foot pedal 21 to meet the needs of different drivers.

[0055] According to the brake pedal assembly 100 of the embodiments of the present invention, by arranging the driving member 4 to be in transmission connection with the first shaft section 31 and the second shaft section 32 to adjust the distance between the axis of the first shaft section 31 and the axis of the second shaft section 32 in the radial direction, each driver can adjust the most comfortable angle of the pedal 21 according to their own body type and driving habits. The correct and comfortable angle of the pedal 21 reduces driving fatigue, improves reaction speed, enhances driving safety, ensures the reliability of the brake pedal assembly 100, and helps relieve leg pressure during long-term driving.

[0056] In some embodiments of the present invention, as Figure 2 and Figure 3 shown, the first shaft section 31 has a first connecting section 331 extending in a second direction perpendicular to the first direction, and the second shaft section 32 has a second connecting section 332 extending in a second direction perpendicular to the first direction. The driving member drives the first connecting section 331 and the second connecting section 332 to move relatively in the second direction. It can be understood that both ends of the first shaft section 31 have a first connecting section 331, and the first connecting section 331 extends in a second direction perpendicular to the first direction. One end of the second shaft section 32 facing the first shaft section 31 has a second connecting section 332. The driving member 4 drives the first connecting section 331 and the second connecting section 332 to move relatively in the second direction (i.e., the axial direction of the first connecting section 331 and the second connecting section 332), realizing the length adjustment of the first connecting section 331 and the second connecting section 332 in the axial direction. Thus, by cleverly using the axial space of the first connecting section 331 and the second connecting section 332, a complex adjustment function can be realized within a limited space, improving the overall compactness of the brake pedal assembly 100, enhancing the flexibility of the brake pedal assembly 100, improving the driving experience, and enhancing safety.

[0057] In some embodiments of the present invention, as Figure 2 and Figure 3As shown, a transmission member is provided between the first connecting section 331 and the second connecting section 332. The transmission member is connected to the driving member 4. A first mating portion is formed on one of the first connecting section 331 and the second connecting section 332, and a second mating portion is formed on the transmission member. The first connecting section 331 and the second connecting section 332 are in transmission cooperation with each other through the first mating portion and the second mating portion. It can be understood that the transmission member transmits the power generated by the driving member 4 to at least one of the first connecting section 331 and the second connecting section 332, thereby changing the radial distance between the first shaft section 31 and the second shaft section 32. The first mating portion can be formed on the first connecting section 331, and the driving member 4 is provided on the second connecting section 332. Or the first mating portion can be formed on the second connecting section 332, and the driving member 4 is provided on the first connecting section 331, with the second mating portion formed on the transmission member. Thus, under the driving action of the driving member 4, the first connecting section 331 and the second connecting section 332 are in transmission through the transmission member, changing the radial distance between the first shaft section 31 and the second shaft section 32, and further adjusting the angle of the pedal arm 2.

[0058] In this way, through precise transmission cooperation, very fine angle adjustment can be achieved to meet the personalized needs of the driver; the design of the transmission member enables the system to still maintain good performance after long-term use, reducing the error caused by wear; using the transmission member for power transmission can achieve complex motion conversion within a limited space, improving the space utilization rate.

[0059] In some embodiments of the present invention, the transmission member is a ball screw 5. One end of the ball screw 5 is connected to the driving member 4, and the second mating portion is formed on the outer peripheral wall of the ball screw 5. The first mating portion is adapted in shape to the second mating portion. It can be understood that the ball screw can provide high-precision, high-efficiency and low-friction linear motion conversion. When the driving member 4 starts to work, it drives the ball screw 5 to rotate. Due to the precise cooperation between the ball screw 5 and the first mating portion, the rotational motion is converted into the axial linear displacement of the first connecting section 331 and the second connecting section 332. This linear displacement changes the radial distance between the first shaft section 31 and the second shaft section 32, and further adjusts the angle of the pedal arm 2. Moreover, the ball screw 5 has extremely high positioning accuracy, can achieve very fine pedal angle adjustment to meet the personalized needs of the driver. The design of the balls makes the friction very small during the movement process, improving the efficiency and reducing the wear. Due to its efficient motion mode and good self-lubricating characteristics, the ball screw 5 is more durable than the traditional screw. The ball screw 5 usually has high rigidity and stability, and can still maintain stable performance after long-term use. The ball screw 5 can achieve a large stroke within a small space, which helps to keep the entire brake pedal assembly 100 compact. Thus, it can significantly improve the driving experience and enhance driving safety and comfort.

[0060] In some embodiments of the present invention, the driving member 4 is a driving motor, which is disposed on one of the first connecting section 331 and the second connecting section 332. A mating hole 333 is formed in the other one of the first connecting section 331 and the second connecting section 332. The mating hole 333 extends in the second direction and opens towards the direction where the driving motor is located. The first mating portion is formed on the inner peripheral wall of the mating hole 333, and the other end of the ball screw 5 extends into the mating hole 333. That is to say, the driving motor can be disposed on the first connecting section 331 and the mating hole 333 is formed in the second connecting section 332, or the driving motor is disposed on the second connecting section 332 and the mating hole 333 is formed in the first connecting section 331, and the other end of the ball screw 5 extends into the mating hole 333. Thus, by directly integrating the driving motor onto one of the first connecting section 331 or the second connecting section 332 and utilizing the precise fit between the ball screw 5 and the mating hole 333, the efficient, accurate and stable pedal angle adjustment function is achieved, improving the driving safety and comfort.

[0061] Referring to Figure 3 As shown, the driving motor is disposed on the second connecting section 332 and the mating hole 333 is formed in the first connecting section 331.

[0062] In some embodiments of the present invention, as Figure 1 shown, an installation groove 11 is formed on the pedal base 1. The top end of the pedal arm 2 is adapted to extend into the installation groove 11 and be connected to the first shaft section 31. The depth and width of the installation groove 11 match the top end of the pedal arm 2, ensuring that the top end of the pedal arm 2 can smoothly extend into the installation groove 11 and be fixed, which can ensure that the installation of the pedal arm 2 is more stable and accurate. The bottom end of the pedal arm 2 is connected with a foot pedal 21.

[0063] In some embodiments of the present invention, the pedal base 1 is formed with a first connection hole 12, and both ends of the connecting shaft 3 are inserted through the first connection hole 12; and / or, the top end of the pedal arm 2 is formed with a second connection hole 22, and the first shaft section 31 is adapted to extend into the second connection hole 22. A shaft sleeve is provided between the first shaft section 31 and the pedal arm 2 to reduce the friction between the first shaft section 31 and the pedal arm 2 and ensure that the rotation of the pedal arm 2 is smoother. Thus, by designing the installation groove 11 and the second connection hole 22, the installation of the pedal arm 2 is ensured to be more stable and accurate, further improving the stability, versatility and adjustment flexibility of the brake pedal assembly 100.

[0064] In some embodiments of the present invention, the brake pedal assembly 100 further includes: a control module and a control panel. The control module is electrically connected to the driving member 4, and the control panel is electrically connected to the control module. Thus, the user can select or adjust a suitable angle, position, and mode through the control panel. After receiving the signal, the control module processes and outputs a signal to the driving member 4, and the driving member 4 drives the ball screw 5 to move according to the signal instruction, thereby adjusting the radial distance between the first shaft section 31 and the second shaft section 32, and realizing the adjustment of the position angle of the foot pedal 21. Further, the brake pedal assembly 100 further includes: a memory module, which is electrically connected to the control module to store the rotation angle of the ball screw. When the pedal is adjusted to the most comfortable position or angle, the memory module stores the current position as the comfortable position. When needed, the foot pedal 21 can quickly return to the comfortable position, improving the driving experience.

[0065] A vehicle according to an embodiment of the second aspect of the present invention includes the brake pedal assembly 100 according to the above first aspect embodiment of the present invention.

[0066] By providing the brake pedal assembly 100 according to the above first aspect embodiment, the vehicle according to the embodiment of the present invention improves the safety and stability of the vehicle and enhances the driving experience of the vehicle.

[0067] A control method for a brake pedal assembly according to an embodiment of the third aspect of the present invention, wherein the brake pedal assembly is the brake pedal assembly 100 according to the first aspect embodiment of the present invention, as Figure 4 shown, the control method includes:

[0068] Step S1, obtaining an input instruction;

[0069] Step S2, determining whether the vehicle is in a target state;

[0070] Step S3, if the vehicle is in the target state, determining whether the vehicle is in a first state or a second state; if the vehicle is not in the target state, performing a reminder action;

[0071] Step S4, if the vehicle is in the first state, confirming whether the surrounding of the vehicle is in a safe environment and determining whether the foot pedal is operated within a preset time; if the vehicle is in the second state, executing step S6;

[0072] Step S5, if the surrounding of the vehicle is safe and the brake pedal assembly is not operated within the preset time, executing step S6;

[0073] If the surrounding of the vehicle is not safe and / or the brake pedal assembly is operated within the preset time, performing a reminder action;

[0074] Step S6, adjusting the brake pedal assembly.

[0075] Here, the preset time can be set to 1 s. Not operating the brake pedal assembly in step S5 may mean not stepping on the brake pedal assembly.

[0076] Further, as Figure 5 shown, step S6 includes:

[0077] Step S6.1, obtaining the current number of rotation turns n of the drive motor and the adjustment distance L of the transmission member;

[0078] Step S6.2, the height adjustment amount of the connecting shaft is h a = n * L;

[0079] Step S6.3, setting the distance OA between the connecting shaft and the fulcrum, the distance OB between the foot pedal and the fulcrum. The distance OA between the connecting shaft and the fulcrum and the distance OB between the foot pedal and the fulcrum satisfy: OB / OA = k. Here, it should be noted that the fulcrum refers to the center of the ball of the brake controller push rod ball head connected to the constant velocity joint of the foot pedal;

[0080] Step S6.4, calculating the displacement of the foot pedal. The formula is: h b = k * h a .

[0081] Here, it should be noted that the target state is the automatic / assisted driving state or the stationary state. The target state includes a first state and a second state. The first state is the automatic / assisted driving state, and the second state is the stationary state.

[0082] In a specific embodiment, as Figure 6 and Figure 7 shown, the adjustment distance L of the transmission member, that is, the thread pitch of the ball screw is L mm, the rotational speed of the drive motor is N rps. When the number of revolutions of the drive motor is n, the position of the first shaft section moves from A to A'. Let AA' = a. Then the rising height h of the connecting shaft a = n * L. At this time, point B (i.e., the foot pedal) rotates around point O to point B'. Let BB' = b, OB / OA = k. Then, when the connecting shaft rises by a mm, the descending distance h of the foot pedal b = k * h a .

[0083] Here, it should be noted that A is the original position of the first shaft section, A' is the position of the first shaft section after being adjusted by the drive motor, B is the original position of the foot pedal, B' is the position of the foot pedal after rotating around point O, and point O refers to the fulcrum.

[0084] Further, the brake pedal assembly of the embodiment of the present invention can be set with multi-stage adjustment. For example:

[0085] In the first gear, the number of revolutions of the drive motor is n1, and the rising height h of the connecting shafta1 = n1 * L, the required time t1 = n1 / N, the descending distance h of the foot pedal b1 = k * h a1 ;

[0086] In the second gear, the rotational speed of the drive motor is n2, and the rising height h of the connecting shaft a2 = n2 * L, the required time t2 = n2 / N, the descending distance h of the foot pedal b2 = k * h a2 ;

[0087] In the third gear, the rotational speed of the drive motor is n3, and the rising height h of the connecting shaft a3 = n3 * L, the required time t3 = n3 / N, the descending distance h of the foot pedal b3 = k * h a3 ; and so on. Thus, the user can adjust to a more comfortable and more suitable position for themselves. At the same time, a safety threshold is set at A' to prevent the user from adjusting the foot pedal too high or too low, which may affect the safety during driving, thereby improving the safety of the vehicle.

[0088] The user selects the driving mode through the control panel or control buttons. After the control module receives the signal, it processes and outputs the driving signal of the drive motor. The drive motor drives the transmission parts according to the signal instructions to drive the first connecting section 331 and the second connecting section 332 to move relatively along the axial direction, thereby realizing the adjustment of the brake pedal assembly 100. At the same time, since the memory module stores the current comfortable position of the brake pedal assembly, whenever the user needs to adjust to the comfortable position, the pedal can be quickly adjusted to the comfortable position stored in the memory module, improving the driving experience.

[0089] According to the control method of the brake pedal assembly 100 of the embodiment of the present invention, the mechanical adjustment process can be automatically completed without manual adjustment, simplifying the operation process, increasing the convenience of adjustment, improving the response speed of the system, being more accurate than manual adjustment, being able to better meet the subtle difference requirements of different users for the position of the foot pedal 21, and ensuring the stability of the brake pedal assembly, thereby ensuring the driving safety of the vehicle.

[0090] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0091] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0092] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0094] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A brake pedal assembly, characterized in that, Comprising: A pedal base, a pedal arm, a connecting shaft and a driving member. Both ends of the connecting shaft are connected to the pedal base, the pedal arm is connected to the connecting shaft. The connecting shaft includes a first shaft section and a second shaft section. Both the first shaft section and the second shaft section extend along a first direction, and the axes of the first shaft section and the second shaft section are not collinear. Both ends of the first shaft section are respectively connected to a second shaft section. The driving member is drivably connected to both the first shaft section and the second shaft section to adjust the distance between the axes of the first shaft section and the second shaft section in the radial direction.

2. The brake pedal assembly according to claim 1, wherein The first shaft section has a first connecting section extending along a second direction perpendicular to the first direction, and the second shaft section has a second connecting section extending along a second direction perpendicular to the first direction. The driving member drives the first connecting section and the second connecting section to move relatively along the second direction.

3. The brake pedal assembly according to claim 2, wherein, A transmission member is provided between the first connecting section and the second connecting section. The transmission member is drivably connected to the driving member. A first mating portion is formed on one of the first connecting section and the second connecting section, and a second mating portion is formed on the transmission member. The first connecting section and the second connecting section are in transmission cooperation with each other through the first mating portion and the second mating portion.

4. The brake pedal assembly according to claim 3, wherein The transmission member is a ball screw. One end of the ball screw is connected to the driving member, the second mating portion is formed on the outer peripheral wall of the ball screw, and the first mating portion is adapted to the shape of the second mating portion.

5. The brake pedal assembly according to claim 4, wherein, The driving member is a driving motor. The driving motor is provided on one of the first connecting section and the second connecting section. A mating hole is formed on the other of the first connecting section and the second connecting section. The mating hole extends along the second direction and the opening faces the direction where the driving motor is located. The first mating portion is formed on the inner peripheral wall of the mating hole, and the other end of the ball screw extends into the mating hole.

6. The brake pedal assembly according to any one of claims 1-5, characterized in that, An installation groove is formed on the pedal base. The top end of the pedal arm is adapted to extend into the installation groove and be connected to the first shaft section, and a foot pedal is connected to the bottom end of the pedal arm.

7. The brake pedal assembly according to any one of claims 1-5, characterized in that, The pedal base forms a first connection hole, and both ends of the connecting shaft are inserted into the first connection hole; and / or, a second connection hole is formed at the top end of the pedal arm, the first shaft section extends into the second connection hole, and a shaft sleeve is provided between the first shaft section and the pedal arm.

8. The brake pedal assembly according to claim 4, wherein, Further comprising: A control module and a control panel. The control module is electrically connected to the driving member, and the control panel is electrically connected to the control module; A memory module, the memory module is electrically connected to the control module to store the rotation angle of the ball screw.

9. A vehicle, characterized in that, Comprising the brake pedal assembly according to any one of claims 1-8.

10. A control method for a brake pedal assembly, characterized in that, The brake pedal assembly is the brake pedal assembly according to any one of claims 1-8, and the control method includes: Step S1, obtaining an input instruction; Step S2, judging whether the vehicle is in a target state; Step S3, if the vehicle is in the target state, then judging whether the vehicle is in a first state or a second state; if the vehicle is not in the target state, then performing a reminder action. Step S4: If the vehicle is in the first state, confirm whether the surrounding environment of the vehicle is safe and determine whether the foot pedal is operated within the preset time; if the vehicle is in the second state, execute Step S6. Step S5: If the surrounding of the vehicle is safe and the brake pedal assembly is not operated within the preset time, execute Step S6; if the surrounding of the vehicle is not safe and / or the brake pedal assembly is operated within the preset time, perform a reminder action. Step S6: Adjust the brake pedal assembly.

11. The control method of the brake pedal assembly according to claim 10, characterized in that, The said Step S6 includes: Step S6.1: Obtain the current rotation number n of the drive motor and the adjustment distance L of the transmission component. Step S6.2, the height adjustment amount of the connecting shaft is h a = n * L; Step S6.3: Set the distance OA between the connecting shaft and the fulcrum and the distance OB between the foot pedal and the fulcrum, and the distance OA between the connecting shaft and the fulcrum and the distance OB between the foot pedal and the fulcrum satisfy: OB / OA = k. Step S6.4, calculate the displacement of the footrest, the formula is: h b = k * h a .

12. The control method of the brake pedal assembly according to claim 10, characterized in that, The target state is the automatic / assisted driving state or the stationary state. The target state includes a first state and a second state. The first state is the automatic / assisted driving state, and the second state is the stationary state.

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