Brake pedal assembly, brake system and vehicle

Abstract

The embodiment of the utility model relates to the technical field of vehicle manufacturing, and discloses a brake pedal assembly, a brake system and a vehicle, the brake pedal assembly comprises a shell, a driving part, a transmission mechanism and a brake pedal, the shell is used for being arranged below a floor of the vehicle, the shell comprises an opening, and the opening is flush with the floor; the driving piece is arranged in the shell; the transmission mechanism is arranged in the shell and is connected with the output end of the driving piece; the brake pedal is rotatably connected with the shell and the transmission mechanism; the shell and the brake pedal have a first state and a second state which are opposite, and in the first state, the driving piece drives the transmission mechanism to push the brake pedal so that the brake pedal can be exposed out of the opening; and in the second state, the driving piece drives the transmission mechanism to pull the brake pedal, so that the brake pedal covers the opening, and the brake pedal is flush with the floor. According to the embodiment of the invention, the brake pedal can be hidden or exposed according to the requirements of a driver, so that different requirements under an automatic driving mode and a manual driving mode are met.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of vehicle manufacturing, and in particular to a brake pedal assembly, a brake system and a vehicle. BACKGROUND

[0002] As a key safety component of a vehicle, a brake system is an important part of the vehicle. The main function of the brake system is to slow down or even stop a vehicle in motion, or to stabilize a vehicle that has stopped on various road conditions. The brake system includes a service brake system, a parking brake system, an emergency brake system and an auxiliary brake system, etc. Among them, a brake pedal plays a crucial role in the service brake system. It is a direct connection point between a driver and the service brake system, and brake control of the vehicle is realized through foot operation of the driver.

[0003] With the development of technology, many vehicles are equipped with automatic driving function. In the automatic driving mode, the vehicle can automatically travel without the operation of the driver. In the related technical solution, the brake pedal is arranged inside the vehicle body and protrudes from the floor. The brake pedal occupies part of the space in the vehicle. In the automatic driving mode, the protruding brake pedal affects the driving comfort of the driver and increases the possibility of misoperation of the driver. In order to ensure the safety of driving and the demand of some drivers for controllability, the manual driving mode must be retained for the vehicle. In the manual driving mode, the brake pedal is an indispensable component of the vehicle.

[0004] However, the related technical solution cannot meet the different needs of the driver in the automatic driving mode and the manual driving mode at the same time. UTILITY MODEL CONTENT

[0005] In view of this, the present application provides a brake pedal assembly, a brake system and a vehicle. The present application can hide or expose the brake pedal according to the needs of the driver, so as to meet the different needs in the automatic driving mode and the manual driving mode.

[0006] In order to achieve the above purpose, the technical solution of the embodiments of the present application is as follows:

[0007] The embodiments of the present application provide a brake pedal assembly, comprising:

[0008] A housing is arranged below a floor of a vehicle, and the housing comprises an opening flush with the floor;

[0009] A driving member is arranged in the housing;

[0010] A transmission mechanism is arranged in the housing and connected with an output end of the driving member;

[0011] A brake pedal is rotatably connected with the shell and the transmission mechanism;

[0012] The shell and the brake pedal have a first state and a second state, in the first state, the driving member drives the transmission mechanism to push the brake pedal, so that the brake pedal is exposed outside the opening; in the second state, the driving member drives the transmission mechanism to pull the brake pedal, so that the brake pedal covers the opening and is flush with the floor.

[0013] The shell is arranged below the floor of the vehicle, and the opening of the shell is flush with the floor. The driving member and the transmission mechanism are arranged in the shell, the brake pedal is connected with the transmission mechanism, so that the shell and the brake pedal have a first state and a second state. In the first state, the driving member drives the transmission mechanism to push the brake pedal, so that the brake pedal is exposed outside the opening, to meet the needs of the driver in the manual driving mode. In the second state, the driving member drives the transmission mechanism to pull the brake pedal, so that the brake pedal covers the opening and is flush with the floor, without occupying the space in the vehicle, to meet the needs of the driver in the automatic driving mode.

[0014] In a possible implementation manner of the present application, the transmission mechanism includes a ball screw mechanism, the ball screw mechanism includes a screw rod and a ball nut, the screw rod is connected with the output end of the driving member, the ball nut is sleeved on the screw rod and is threadedly connected with the screw rod, and the ball nut is further connected with the brake pedal.

[0015] In the present application, the transmission mechanism is arranged as a ball screw mechanism, the screw rod and the ball nut can slide relative to each other, the friction loss is small, the transmission efficiency is high, and the transmission is reversible, so that the ball nut pushes or pulls the brake pedal, to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0016] In a possible implementation manner of the present application, the transmission mechanism includes a worm gear mechanism, the worm gear mechanism includes a worm gear and a worm, the worm gear is connected with the output end of the driving member, the worm is in meshing transmission with the worm gear, and the worm is connected with the brake pedal.

[0017] In the present application, the transmission mechanism is arranged as a worm gear mechanism, the worm gear mechanism can also realize the reversibility of the transmission, so that the worm pushes or pulls the brake pedal, to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0018] In a possible implementation of the present application, the driving member comprises a motor; in the first state, the motor rotates forward to drive the transmission mechanism to push the brake pedal; in the second state, the motor rotates reversely to drive the transmission mechanism to pull the brake pedal.

[0019] The present application can drive the ball screw mechanism and the worm gear mechanism to realize the reversibility of transmission by setting the driving member as a motor that can rotate forward and reversely, so as to meet different requirements of the driver in the automatic driving mode and the manual driving mode.

[0020] In a possible implementation of the present application, the present application further comprises:

[0021] A guide seat is arranged in the shell;

[0022] A pedal feeling simulator is arranged in the guide seat and connected with the transmission mechanism, and the transmission mechanism can drive the pedal feeling simulator to move in the guide seat; in the first state, the pedal feeling simulator is located at the first end of the guide seat; in the second state, the pedal feeling simulator is located at the second end of the guide seat.

[0023] The pedal feeling simulator is connected with the control system of the vehicle in communication.

[0024] The pedal feeling simulator connected with the control system of the vehicle in communication is arranged in the present application, so that the brake signal can be transmitted to the control system, the control system controls the wheel end brake to output brake force, and the purpose of vehicle braking and deceleration is achieved. The pedal feeling simulator can also provide brake feeling feedback to the driver.

[0025] In a possible implementation of the present application, the pedal feeling simulator comprises a simulator shell, a displacement sensor, a spring, a piston and a piston rod; the piston is movably arranged in the simulator shell; the piston rod is arranged in the simulator shell, the first end of the piston rod is connected with the piston, and the second end of the piston rod is rotatably connected with the brake pedal; the spring is arranged in parallel with the piston rod, the first end of the spring abuts against the piston, and the second end of the spring abuts against the inner wall of the simulator shell; the displacement sensor is arranged in the simulator shell and is used to detect the position of the piston, and the displacement sensor is connected with the control system in communication.

[0026] The embodiment of the present application detects the position of the piston by the displacement sensor to output a corresponding displacement signal, and the control system controls the wheel end brake to output a braking force based on the displacement signal, so as to achieve the purpose of vehicle braking and deceleration. By arranging the spring between the piston and the simulator shell, when the driver steps on the brake pedal, the piston moves in the simulator shell to compress the spring, thereby providing the driver with a braking feeling feedback.

[0027] In a possible implementation of the present application, the brake pedal further comprises a pedal face, a pedal shaft and a connecting portion, the pedal face is fixedly connected with the pedal shaft, two ends of the pedal shaft are rotatably connected with the shell, the connecting portion is arranged at the middle part of the pedal shaft, the connecting portion is rotatably connected with the first end of the adapter through the first rotating shaft, and the second end of the adapter is rotatably connected with the transmission mechanism through the second rotating shaft.

[0028] The brake pedal of the embodiment of the present application is rotatably connected with the shell through the pedal shaft and is rotatably connected with the transmission mechanism through the adapter, so that the brake pedal can be rotated by the horizontal displacement of the transmission mechanism, so that the brake pedal is exposed outside the opening or covers the opening, so as to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0029] In a possible implementation of the present application, the brake pedal further comprises a partition plate, the partition plate is arranged in the shell, and a gap is formed between the partition plate and the shell in a first direction, the brake pedal passes through the gap, and the driving member and the transmission mechanism are located on the side of the partition plate away from the opening in a second direction.

[0030] The first direction and the second direction are perpendicular to each other.

[0031] The embodiment of the present application can shield other structures in the shell when the brake pedal is exposed outside the opening, so as to achieve the effect of dust prevention and improve the aesthetic appearance.

[0032] The embodiment of the present application further provides a brake system comprising the brake pedal assembly.

[0033] The brake system of the embodiment of the present application can expose the brake pedal outside the opening or cover the opening flush with the floor based on the needs of the driver, so as to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0034] The embodiment of the present application further provides a vehicle comprising the brake system.

[0035] The vehicle provided by the embodiment of the present application can meet different requirements of the driver on the brake pedal in the automatic driving mode and the manual driving mode due to the adoption of the brake system. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A structural diagram of the brake pedal assembly provided by the embodiment of the present application in the first state;

[0037] Figure 2 A structural diagram of the brake pedal assembly provided by the embodiment of the present application in the second state; Figure 1 A sectional view in one perspective;

[0038] Figure 3 A sectional view of the brake pedal assembly provided by the embodiment of the present application when the brake pedal is stepped in the first state;

[0039] Figure 4 A structural diagram of the brake pedal assembly provided by the embodiment of the present application in the second state;

[0040] Figure 5 A structural diagram of the brake pedal assembly provided by the embodiment of the present application in the second state; Figure 4 A sectional view in one perspective;

[0041] Figure 6 A sectional view in another perspective; Figure 4

[0042] Figure 7 An exploded view of the brake pedal assembly provided by the embodiment of the present application.

[0043] REFERENCE SIGNS:

[0044] 100 - shell; 101 - body; 102 - first side wall; 1021 - first support protrusion; 103 - second side wall; 110 - first support block; 120 - second support block;

[0045] 200 - driving member;

[0046] 300 - transmission mechanism; 310 - screw rod; 320 - ball nut; 330 - stud;

[0047] 400 - brake pedal; 410 - pedal face; 420 - pedal shaft; 430 - connecting part;

[0048] 500 - guide seat;

[0049] 600 - pedal feeling simulator; 610 - simulator shell; 620 - displacement sensor; 630 - spring; 640 - piston; 650 - piston rod;

[0050] 700 - adapter; 710 - first rotating shaft; 720 - second rotating shaft;

[0051] 800 - partition plate.​ DETAILED DESCRIPTION

[0052] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the specific technical solutions of the present application with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application, but not to limit the scope of the present application.

[0053] In the embodiments of the present application, the terms "first", "second" are only used for descriptive purpose, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0054] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left" and "right" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0055] In the embodiments of the present application, unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0056] In the embodiments of the present application, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0057] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to mean an example, illustration or description. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design solutions. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0058] As described in the background, in the related art, the brake pedal is always protruding from the floor. When the vehicle is in the automatic driving mode, the protruding brake pedal occupies part of the space in the vehicle, affecting the driving experience of the driver. In addition, the driver may mistakenly step on the brake pedal, causing the vehicle to exit the automatic driving mode, increasing the possibility of driver misoperation and posing a safety hazard. However, when the vehicle is in the manual driving mode, the brake pedal is an indispensable component of the vehicle, and therefore cannot be removed directly.

[0059] Therefore, embodiments of the present application aim to provide a brake pedal assembly, a brake system and a vehicle. The shell is arranged below the floor of the vehicle, and the opening of the shell is flush with the floor. A driving member and a transmission mechanism are arranged in the shell, and the transmission mechanism is connected to the brake pedal. The shell and the brake pedal have a first state and a second state relative to each other. In the first state, the driving member drives the transmission mechanism to push the brake pedal, so that the brake pedal is exposed outside the opening to meet the needs of the driver in the manual driving mode. In the second state, the driving member drives the transmission mechanism to pull the brake pedal, so that the brake pedal covers the opening and is flush with the floor, without occupying the space in the vehicle, to meet the needs of the driver in the automatic driving mode.

[0060] In the following, embodiments of the present application will be described in detail in conjunction with the accompanying drawings, in which examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, but cannot be understood as a limitation of the present application.

[0061] It should be noted that the first direction X, the second direction Y and the third direction Z in the embodiments of the present application are three different directions in a three-dimensional space. For example, the first direction X, the second direction Y and the third direction Z can be perpendicular to each other, and the second direction Y can be a vertical direction.

[0062] The embodiments of the present application provide a brake pedal assembly, a brake system and a vehicle. It should be noted that the vehicle in the present application can refer to a large vehicle, a small vehicle, a special vehicle, etc. For example, according to the vehicle type, the vehicle in the present application can be a sedan type, a SUV type, a MPV type or other types. For a vehicle, generally a vehicle wheel, a vehicle body and a brake system are provided, and the brake system includes a service brake system, a parking brake system, an emergency brake system and an auxiliary brake system, etc. Among them, the brake pedal plays a crucial role in the service brake system, which is a direct connection point between the driver and the service brake system, and the brake control of the vehicle is realized through the foot operation of the driver.

[0063] Please refer to Figures 1-7 The embodiment of the application provides a brake pedal assembly, which comprises:

[0064] The shell 100 can be in the shape as required. For example, the shell 100 of the embodiment is generally cuboid. The shell 100 can be made of metal plates, for example, a plurality of metal plates can be welded to each other to provide a basis for mounting other components. The shell 100 is arranged below the floor of a vehicle, for example, the shell 100 can be pre-buried below the floor during assembly of the vehicle. The shell 100 comprises an opening, which is flush with the floor, that is, the opening and the floor are in the same plane.

[0065] The driving member 200 is arranged in the shell 100. For example, the driving member 200 can be detachably arranged in the shell 100 by means of fasteners such as bolts or screws.

[0066] The transmission mechanism 300 is arranged in the shell 100 and connected to the output end of the driving member 200. The transmission mechanism 300 is used to transmit power output by the driving member 200 to other components.

[0067] The brake pedal 400 is rotatably connected to the shell 100 and the transmission mechanism 300. The specific rotatable connection mode can be set as required.

[0068] In the embodiment of the application, the shell 100 and the brake pedal 400 have a first state and a second state. As shown in Figure 1 and Figure 2 In the first state, the driving member 200 drives the transmission mechanism 300 to push the brake pedal 400, so that the brake pedal 400 rotates clockwise relative to the shell 100 and is exposed outside the opening. Figure 4 and Figure 5 In the second state, the driving member 200 drives the transmission mechanism 300 to pull the brake pedal 400, so that the brake pedal 400 rotates counterclockwise relative to the shell 100 and covers the opening. The brake pedal 400 is flush with the floor to hide the brake pedal 400.

[0069] As can be seen from the above description, the shell 100 is arranged below the floor of the vehicle, and the opening of the shell 100 is flush with the floor, the driving member 200 and the transmission mechanism 300 are arranged in the shell 100, the transmission mechanism 300 is connected to the brake pedal 400, so that the shell 100 and the brake pedal 400 have the first state and the second state. In the first state, the driving member 200 drives the transmission mechanism 300 to push the brake pedal 400, so that the brake pedal 400 is exposed outside the opening to meet the needs of the driver in the manual driving mode. In the second state, the driving member 200 drives the transmission mechanism 300 to pull the brake pedal 400, so that the brake pedal 400 is covered in the opening and flush with the floor, without occupying the space in the vehicle, to meet the needs of the driver in the automatic driving mode.

[0070] Please continue to refer to Figure 2 and Figure 5 In one possible implementation, the transmission mechanism 300 of the shell 100 of the present application includes a ball screw mechanism. The ball screw mechanism includes a screw rod 310 and a ball nut 320, the screw rod 310 is connected to the output end of the driving member 200, the ball nut 320 is sleeved on the screw rod 310 and is threadedly connected with the screw rod 310, and the ball nut 320 is further connected with the brake pedal 400. For example, a stud 330 can be arranged on the ball nut 320, and the stud 330 is connected with the brake pedal 400.

[0071] The shell 100 of the present application sets the transmission mechanism 300 as a ball screw mechanism, the screw rod 310 and the ball nut 320 can slide relative to each other, the friction loss is small, the transmission efficiency is high, and the transmission is reversible, so that the ball nut 320 pushes or pulls the brake pedal 400 to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0072] Please continue to refer to Figure 3 and Figure 7 The shell 100 of the present application further includes a first support block 110 and a second support block 120, for example, the first support block 110 and the second support block 120 can be arranged on the bottom wall of the shell 100, and the screw rod 310 is arranged in the first support block 110 and the second support block 120, so that the first support block 110 and the second support block 120 provide support for the screw rod 310 to ensure the stability thereof.

[0073] In another possible implementation, the transmission mechanism 300 of the shell 100 of the present application includes a worm gear mechanism, the worm gear mechanism includes a worm gear and a worm, the worm gear is connected to the output end of the driving member 200, the worm is in meshing transmission with the worm gear, and the worm is connected with the brake pedal 400.

[0074] The transmission mechanism 300 is a worm and gear mechanism, which can also realize the reversibility of transmission, so that the worm pushes or pulls the brake pedal 400 to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0075] In the embodiment, the driving member 200 includes a motor. In the first state, the motor rotates forward to drive the transmission mechanism 300 to push the brake pedal 400. In the second state, the motor reverses to drive the transmission mechanism 300 to pull the brake pedal 400.

[0076] The driving member 200 is a motor that can rotate forward and reverse, so that the ball screw mechanism and the worm and gear mechanism can realize the reversibility of transmission, so that the brake pedal 400 can be exposed outside the opening or covered in the opening to meet the different needs of the driver in the automatic driving mode and the manual driving mode.

[0077] Please continue to refer to Figure 2 , Figure 3 , Figure 5 and Figure 7 , the brake pedal assembly of the embodiment further comprises:

[0078] The guide seat 500 is arranged in the shell 100. The guide seat 500 is formed with a guide cavity for the movement of other components in the guide seat 500.

[0079] The pedal feel simulator 600 is arranged in the guide seat 500 and connected with the transmission mechanism 300; that is, the transmission mechanism 300 of the embodiment is first connected with the pedal feel simulator 600, and then connected with the brake pedal 400 through the pedal feel simulator 600. The transmission mechanism 300 can drive the pedal feel simulator 600 to move in the guide seat 500. As shown in Figure 2 , in the first state, the transmission mechanism 300 drives the pedal feel simulator 600 to be located at the first end (the left end in the figure) of the guide seat 500. As shown in Figure 5 , in the second state, the transmission mechanism 300 drives the pedal feel simulator 600 to be located at the second end (the right end in the figure) of the guide seat 500.

[0080] The pedal feel simulator 600 of the embodiment is also used for communication connection with the control system of the vehicle to transmit the brake signal to the control system, so as to control the vehicle to brake and slow down. The pedal feel simulator 600 can also provide brake feel feedback to the driver.

[0081] The pedal feeling simulator 600 is in communication connection with the control system of the vehicle, so that a brake signal can be transmitted to the control system, the control system controls the wheel end brake to output brake force, and the purpose of vehicle braking and speed reduction is achieved.

[0082] Specifically, the pedal feeling simulator 600 includes a simulator housing 610, a displacement sensor 620, a spring 630, a piston 640 and a piston rod 650. The piston 640 is movably arranged in the simulator housing 610. The piston rod 650 is arranged in the simulator housing 610, a first end of the piston rod 650 is connected with the piston 640, and a second end of the piston rod 650 is rotatably connected with the brake pedal 400. The spring 630 is arranged parallel to the piston rod 650, a first end of the spring 630 abuts against the piston 640, and a second end of the spring 630 abuts against an inner wall of the simulator housing 610. The displacement sensor 620 is arranged in the simulator housing 610 and is used to detect the position of the piston 640. The displacement sensor 620 is in communication connection with the control system. As shown in Figure 6 , the displacement sensor 620 can be in communication connection with the control system through a signal line.

[0083] As shown in Figure 3 , in the first state, when the driver steps on the brake pedal 400, the brake pedal 400 drives the piston rod 650 to move towards the right side of the drawing, so as to pull the piston 640 to move integrally to the right. When the piston 640 moves in the simulator housing 610, the spring 630 is compressed, and the spring 630 provides an elastic restoring force to the piston 640 and transmits the elastic restoring force to the brake pedal 400, so that the driver feels the brake feeling feedback.

[0084] The displacement sensor 620 detects the position of the piston 640 to output a corresponding displacement signal, and the control system controls the wheel end brake to output brake force based on the displacement signal, so as to achieve the purpose of vehicle braking and speed reduction. By arranging the spring 630 between the piston 640 and the simulator housing 610, when the driver steps on the brake pedal 400, the piston 640 moves in the simulator housing 610 to compress the spring 630, so as to provide the driver with brake feeling feedback.

[0085] Please continue to refer to Figure 2 , Figure 3 , Figure 5 and Figure 7The brake pedal assembly of the embodiment of the application further comprises an adapter 700, a first rotating shaft 710 and a second rotating shaft 720. The brake pedal 400 comprises a pedal face 410, a pedal shaft 420 and a connecting portion 430, the pedal face 410 is fixedly connected with the pedal shaft 420, and both ends of the pedal shaft 420 are rotatably connected with the housing 100. Exemplarily, the housing 100 of the embodiment comprises a body 101, a first side wall 102 and a second side wall 103, the first side wall 102 and the second side wall 103 are two side walls of the housing 100 along a third direction Z, and both ends of the pedal shaft 420 are hingedly connected with the first side wall 102 and the second side wall 103 respectively. The connecting portion 430 is arranged at the middle part of the pedal shaft 420, the connecting portion 430 is rotatably connected with the first end of the adapter 700 through the first rotating shaft 710, and the second end of the adapter 700 is rotatably connected with the transmission mechanism 300 through the second rotating shaft 720.

[0086] The brake pedal 400 of the embodiment of the application is rotatably connected with the housing 100 through the pedal shaft 420 and is rotatably connected with the transmission mechanism 300 through the adapter 700, so that the brake pedal 400 can be rotated through the horizontal displacement of the transmission mechanism 300, and the brake pedal 400 can be exposed outside the opening or covered on the opening, so as to meet different needs of the driver in the automatic driving mode and the manual driving mode.

[0087] Further, the brake pedal assembly of the embodiment of the application further comprises a partition plate 800 arranged in the housing 100. Exemplarily, the first side wall 102 of the embodiment is provided with a first supporting protrusion 1021, the second side wall 103 is provided with a second supporting protrusion, and the partition plate 800 can be lapped on the first supporting protrusion 1021 and the second supporting protrusion. Along the first direction X, a gap is formed between the partition plate 800 and the housing 100, and the brake pedal 400 is arranged in the gap, so as to realize the connection with the transmission mechanism 300. Along the second direction Y, the driving member 200 and the transmission mechanism 300 are located on the side away from the opening.

[0088] The embodiment of the application can shield other structures (including the driving member 200, the transmission mechanism 300, the guide seat 500 and the pedal feeling simulator 600) in the housing 100 when the brake pedal 400 is exposed outside the opening, so as to play a dustproof effect and improve the aesthetic appearance.

[0089] The embodiment of the application further provides a brake system comprising the brake pedal assembly.

[0090] The brake system of the embodiment of the application can expose the brake pedal outside the opening or cover the brake pedal on the opening flush with the floor based on the needs of the driver, so as to meet different needs of the driver in the automatic driving mode and the manual driving mode.

[0091] The embodiment of the application further provides a vehicle comprising the brake system.

[0092] Specifically, the vehicle of the embodiment of the application may, for example, be a new energy vehicle. The vehicle of the embodiment of the application can meet different requirements of a driver on a brake pedal in an automatic driving mode and a manual driving mode due to adoption of the brake system.

[0093] The serial numbers of the embodiments of the application are only for description, and do not represent the advantages and disadvantages of the embodiments. The above is only a preferred embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent flow conversion, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A brake pedal assembly characterized by, The application relates to a brake pedal device for a vehicle, comprising: a housing (100) arranged under a floor of the vehicle, the housing (100) comprising an opening flush with the floor; a driving member (200) arranged in the housing (100); a transmission mechanism (300) arranged in the housing (100) and connected to an output end of the driving member (200); a brake pedal (400) rotatably connected to the housing (100) and the transmission mechanism (300); the housing (100) and the brake pedal (400) have a first state and a second state, in the first state, the driving member (200) drives the transmission mechanism (300) to push the brake pedal (400) so that the brake pedal (400) is exposed outside the opening; in the second state, the driving member (200) drives the transmission mechanism (300) to pull the brake pedal (400) so that the brake pedal (400) covers the opening and is flush with the floor.

2. The brake pedal assembly of claim 1, wherein, the transmission mechanism (300) comprises a ball screw mechanism, the ball screw mechanism comprises a screw rod (310) and a ball nut (320), the screw rod (310) is connected to the output end of the driving member (200), the ball nut (320) is sleeved on the screw rod (310) and is in threaded connection with the screw rod (310), and the ball nut (320) is further connected to the brake pedal (400).

3. The brake pedal assembly of claim 1, wherein, the transmission mechanism (300) comprises a worm gear mechanism, the worm gear mechanism comprises a worm wheel and a worm, the worm wheel is connected to the output end of the driving member (200), the worm is in mesh transmission with the worm wheel, and the worm is connected to the brake pedal (400).

4. Brake pedal assembly according to claim 2 or 3, characterized in that the driving member (200) comprises a motor, in the first state, the motor rotates forward to drive the transmission mechanism (300) to push the brake pedal (400), and in the second state, the motor rotates reversely to drive the transmission mechanism (300) to pull the brake pedal (400).

5. The brake pedal assembly of claim 1, wherein, the application further comprises: a guide seat (500) arranged in the housing (100); a pedal feeling simulator (600) arranged in the guide seat (500) and connected to the transmission mechanism (300), the transmission mechanism (300) can drive the pedal feeling simulator (600) to move in the guide seat (500), wherein in the first state, the pedal feeling simulator (600) is located at a first end of the guide seat (500), and in the second state, the pedal feeling simulator (600) is located at a second end of the guide seat (500); the pedal feeling simulator (600) is used for being communicatively connected to a control system of the vehicle.

6. The brake pedal assembly of claim 5, wherein, The pedal feeling simulator (600) comprises a simulator shell (610), a displacement sensor (620), a spring (630), a piston (640) and a piston rod (650); the piston (640) is movably arranged in the simulator shell (610); the piston rod (650) penetrates the simulator shell (610), a first end of the piston rod (650) is connected with the piston (640), and a second end of the piston rod (650) is rotatably connected with the brake pedal (400); the spring (630) is arranged parallel to the piston rod (650), a first end of the spring (630) abuts against the piston (640), and a second end of the spring (630) abuts against an inner wall of the simulator shell (610); the displacement sensor (620) is located in the simulator shell (610) and is used for detecting the position of the piston (640), and the displacement sensor (620) is in communication connection with the control system.

7. The brake pedal assembly of claim 1, wherein Further comprising an adapter (700), a first rotating shaft (710) and a second rotating shaft (720); the brake pedal (400) comprises a pedal face (410), a pedal shaft (420) and a connecting part (430), the pedal face (410) is fixedly connected with the pedal shaft (420), both ends of the pedal shaft (420) are rotatably connected with the shell (100), the connecting part (430) is arranged at the middle part of the pedal shaft (420), the connecting part (430) is rotatably connected with a first end of the adapter (700) through the first rotating shaft (710), and a second end of the adapter (700) is rotatably connected with the transmission mechanism (300) through the second rotating shaft (720).

8. The brake pedal assembly of claim 7, wherein, Further comprising a partition plate (800), the partition plate (800) is arranged in the shell (100); along a first direction, a gap is formed between the partition plate (800) and the shell (100), and the brake pedal (400) penetrates the gap; along a second direction, the driving member (200) and the transmission mechanism (300) are located on a side of the partition plate (800) away from the opening. The first direction and the second direction are perpendicular to each other.

9. A brake system characterized by, The brake pedal assembly comprises the brake pedal assembly according to any one of claims 1-8.

10. A vehicle characterized by comprising: The brake system comprises the brake system according to claim 9.

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