Integrated lightweight brake-by-wire pedal compatible with existing pedal arm

Abstract

The integrated light-weight brake-by-wire pedal compatible with the existing pedal arm comprises a shell, an installation shell is fixed to the outer wall of the shell, a set of cantilever beams are fixed to the outer wall of the shell, a cantilever is rotationally connected to the outer wall of one side of each cantilever beam, the pedal arm is fixed to the outer wall of each cantilever, and a pedal part is fixed to the outer wall of each pedal arm. A pedal force simulator is arranged on the inner wall of the mounting shell, a first plane, a second plane and a third plane are arranged on the outer wall of one side of the shell, and position sensors are inserted into the inner walls of the first plane, the second plane and the third plane. According to the utility model, the self weight is effectively reduced, meanwhile, the shell can be better matched with structures such as a pedal arm, a position sensor, a pedal force simulator, an automobile firewall and the like, meanwhile, the reinforcing ribs and the lightening holes are arranged in the corresponding connecting areas to improve the overall structural strength of the shell, design and production are facilitated, and meanwhile, the cost is reduced. And the design and development cost of the lightweight brake-by-wire pedal is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to brake system technical field especially, it relates to a kind of integrated lightweight brake-by-wire pedal compatible with existing pedal arm. BACKGROUND

[0002] With the continuous development of automobile electrification and intelligentization, the degree of electrification of automobile will be higher and higher, and it becomes a trend to control automobile by brake-by-wire technology. In the future, with the development and popularization of electronic mechanical brake (EMB), the traditional hydraulic system is cancelled, and brake pedal and brake are completely decoupled. Brake-by-wire has the advantages of fast brake response speed, simple structure, easy maintenance, low drag torque, and is becoming a replacement scheme of hydraulic brake.

[0003] The present application aims to design an integrated brake-by-wire pedal compatible with the existing lightweight pedal arm, to reduce the workload and development cost. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of integrated lightweight brake-by-wire pedals compatible with existing pedal arm, to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An integrated lightweight brake-by-wire pedal compatible with existing pedal arm, comprising a shell, the shell outer wall is fixed with a mounting shell, the shell outer wall is fixed with a group of cantilever beams, the cantilever beam one side outer wall is rotatably connected with a cantilever, the cantilever outer wall is fixed with a pedal arm, the pedal arm outer wall is fixed with a pedal part, the mounting shell inner wall is provided with a pedal force simulator, the shell one side outer wall is opened with first plane, second plane and third plane, the first plane, second plane and third plane inner wall are inserted with position sensors, the position sensor two sides outer wall is respectively fixed on the first plane and third plane by screw.

[0007] As a further scheme of the utility model: the output end of the pedal force simulator is fixed with a lead screw, the lead screw outer wall is sleeved with an axial force joint.

[0008] As a further scheme of the utility model: the lead screw outer wall is respectively connected with thin nut and thick nut by thread, and the thin nut and thick nut are respectively arranged on the two sides outer wall of the axial force joint.

[0009] As a further scheme of the utility model: the shell outer wall is respectively opened with mounting holes at four corners.

[0010] As a further scheme of the utility model: the cantilever beam one side outer wall is fixed with a reinforcing cross beam, and the cantilever beam and the shell one side outer wall are opened with a plurality of lightening holes.

[0011] As a further scheme of the utility model: the mounting shell outer wall is fixed with multiple reinforcing ribs.

[0012] As a further scheme of the utility model: the shell one side outer wall is fixed with multiple mounting convex points, and the mounting shell one side outer wall is provided with multiple fixing holes.

[0013] As a further scheme of the utility model: the fixing hole is fixed with multiple fixing caps through screws, the fixing cap outer wall is fixed with a pedal force simulator cover plate, and the pedal force simulator cover plate is fixed on the one side outer wall of the pedal force simulator.

[0014] The utility model has the advantages of:

[0015] 1. The light-weight brake-by-wire pedal can better adapt to the pedal arm, position sensor, pedal force simulator and automobile firewall structure while effectively reducing the weight, and the reinforcing ribs and weight reduction holes arranged in the corresponding connecting areas improve the overall structural strength of the shell, facilitate the design and production, and reduce the design and development cost of the light-weight brake-by-wire pedal.

[0016] 2. The areas where the cantilever beam and the shell need high-strength connection are all designed with weight reduction holes to facilitate weight reduction, and the design of the reinforcing beams and reinforcing ribs increases the rigidity of the shell, the weight reduction holes reduce the mass and increase the strength, the four mounting holes are distributed in the four corners of the shell outer wall to increase the mounting stability and reduce the mounting volume, and the mounting convex points at one end of the mounting hole are used to cooperate with the automobile firewall plane to avoid the fitting gap caused by large plane cooperation.

[0017] 3. The axial force joint uses a mounting mode in which two nuts are mutually abutted, the axial installation position of the axial force joint can be adjusted according to different requirements, the thick nut bears the pedal return force to ensure reliability, and the thin nut satisfies the small force of the foot hook pedal and occupies a small space. The first plane, the second plane and the third plane on the shell are respectively in contact with the position sensor to ensure the installation accuracy of the position sensor. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A front view structural schematic diagram of an integrated light-weight brake-by-wire pedal compatible with an existing pedal arm is provided for the utility model;

[0019] Figure 2 A shell structure schematic diagram of an integrated light-weight brake-by-wire pedal compatible with an existing pedal arm is provided for the utility model;

[0020] Figure 3 A shell side view structural schematic diagram of an integrated light-weight brake-by-wire pedal compatible with an existing pedal arm is provided for the utility model;

[0021] Figure 4 A schematic diagram of a pedal force simulator cover plate structure of an integrated lightweight brake-by-wire pedal compatible with an existing pedal arm is provided in the utility model.

[0022] Figure 5 A schematic diagram of an axial force joint structure of an integrated lightweight brake-by-wire pedal compatible with an existing pedal arm is provided in the utility model.

[0023] Figure 6 A schematic diagram of a position sensor structure of an integrated lightweight brake-by-wire pedal compatible with an existing pedal arm is provided in the utility model.

[0024] In the figure: 1 - shell, 2 - mounting shell, 3 - mounting hole, 4 - position sensor, 5 - pedal part, 6 - pedal arm, 7 - axial force joint, 8 - stiffener, 9 - cantilever, 10 - cantilever beam, 11 - reinforcing crossbeam, 12 - weight-reducing hole, 13 - fixing hole, 14 - mounting convex point, 15 - pedal force simulator cover plate, 16 - fixing cap, 17 - screw rod, 18 - thin nut, 19 - thick nut, 20 - first plane, 21 - second plane, 22 - third plane. DETAILED DESCRIPTION

[0025] The technical solutions of the patent will be further described in detail below in combination with specific embodiments.

[0026] The embodiments of the patent will be described in detail below, and 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 only used to explain the patent, and cannot be understood as a limitation on the patent.

[0027] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the patent.

[0028] In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances.

[0029] Example 1

[0030] An integrated lightweight brake-by-wire pedal compatible with existing pedal arms, such as Figures 1-6 As shown, the device includes a housing 1, an mounting shell 2 fixed to the outer wall of the housing 1, a set of cantilever beams 10 fixed to the outer wall of the housing 1, a cantilever 9 rotatably connected to one side of the outer wall of the cantilever beam 10, a pedal arm 6 fixed to the outer wall of the cantilever 9, a pedal part 5 fixed to the outer wall of the pedal arm 6, a pedal force simulator provided on the inner wall of the mounting shell 2, and a first plane 20, a second plane 21 and a third plane 22 opened on one side of the outer wall of the housing 1. A position sensor 4 is inserted into the inner wall of the first plane 20, the second plane 21 and the third plane 22, and the two outer walls of the position sensor 4 are respectively fixed to the first plane 20 and the third plane 22 by screws.

[0031] The output end of the pedal force simulator is fixed with a lead screw 17, and an axial force connector 7 is sleeved on the outer wall of the lead screw 17.

[0032] The outer wall of the lead screw 17 is respectively connected by a thin nut 18 and a thick nut 19 through threads, and the thin nut 18 and the thick nut 19 are respectively set on the outer walls of the two sides of the axial force joint 7.

[0033] Mounting holes 3 are respectively opened at the four corners of the outer wall of the housing 1;

[0034] A reinforcing crossbeam 11 is fixed to one side of the outer wall of the cantilever beam 10, and multiple weight-reducing holes 12 are opened on one side of the outer wall of the cantilever beam 10 and the shell 1.

[0035] The outer wall of the mounting shell 2 is fixed with multiple reinforcing ribs 8;

[0036] Multiple mounting protrusions 14 are fixed on one side of the outer wall of the housing 1, and multiple fixing holes 13 are opened on one side of the outer wall of the mounting housing 2;

[0037] The fixing hole 13 is fixed with multiple fixing caps 16 by screws. The outer wall of the fixing cap 16 is fixed with a pedal force simulator cover plate 15, which is fixed to one side of the outer wall of the pedal force simulator.

[0038] In this embodiment, the housing 1 is designed as a plastic part. The areas where the cantilever beam 10 and the housing 1 require high-strength connection are designed with weight-reducing holes 12 to facilitate weight reduction. At the same time, the design of the reinforcing beam 11 and the reinforcing rib 8 increases the rigidity of the housing 1. The weight-reducing holes 12 reduce the weight and increase the strength. The four mounting holes 3 are distributed at the four corners of the outer wall of the housing 1 to increase the installation stability and reduce the installation volume. Meanwhile, the mounting protrusion 14 at one end of the mounting hole 3 is used to mate with the plane of the vehicle firewall to avoid the mating gap caused by the large plane mating. The housing 1 as a whole has the functions of mounting the pedal arm 6, the position sensor 4, the pedal force simulator, and the interface with the vehicle firewall.

[0039] The pedal force simulator cover plate 15 is designed as a plastic part, the pedal force simulator cover plate 15 is fixed at one end of the mounting shell 2 using four bolts, and the part of the pedal force simulator cover plate 15 protruding from the mounting shell 2 is on the same plane as the mounting protrusion 14, thereby being in contact with the firewall mounting plane to transmit the axial force of the force simulator and avoid the axial force being borne by the bolt mounting position.

[0040] The axial force joint 7 is installed using two nuts abutting each other, and the axial installation position of the axial force joint 7 can be adjusted according to different requirements, the thick nut 19 bears the pedal return force to ensure reliability, and the thin nut 18 satisfies the smaller force of the foot hook pedal and occupies a smaller space.

[0041] The light-weight brake-by-wire pedal can better adapt to the pedal arm 6, the position sensor 4, the pedal force simulator and the automobile firewall structure while effectively reducing the weight of the pedal, and the overall structural strength of the shell 1 is improved by arranging the reinforcing ribs 8 and the weight reduction holes 12 in the corresponding connection areas, which facilitates design and production while reducing the design and development cost of the light-weight brake-by-wire pedal.

[0042] Working principle: The areas requiring high-strength connection of the cantilever beam 10 and the shell 1 are designed with weight reduction holes 12 to facilitate weight reduction, and the design of the reinforcing beams 11 and the reinforcing ribs 8 increases the rigidity of the shell 1, the weight reduction holes 12 reduce the weight and increase the strength, the four mounting holes 3 are distributed at the four corners of the outer wall of the shell 1 to increase the installation stability and reduce the installation volume, and the mounting protrusion 14 at one end of the mounting hole 3 is used for cooperation with the automobile firewall plane to avoid the cooperation gap caused by the cooperation of the large plane.

[0043] The axial force joint 7 is installed using two nuts abutting each other, and the axial installation position of the axial force joint 7 can be adjusted according to different requirements, the thick nut 19 bears the pedal return force to ensure reliability, and the thin nut 18 satisfies the smaller force of the foot hook pedal and occupies a smaller space.

[0044] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An integrated lightweight brake-by-wire pedal compatible with an existing pedal arm, comprising a housing (1), characterized in that, The shell (1) outer wall is fixed with installation shell (2), the shell (1) outer wall is fixed with a group of cantilever beam (10), and the cantilever beam (10) one side outer wall is rotatably connected with cantilever (9), and the cantilever (9) outer wall is fixed with pedal arm (6), and the pedal arm (6) outer wall is fixed with pedal part (5), and the installation shell (2) inner wall is provided with pedal force simulator, and the shell (1) one side outer wall is opened with first plane (20), second plane (21) and third plane (22), and the first plane (20), second plane (21) and third plane (22) inner wall are inserted with position sensor (4), and the position sensor (4) both sides outer wall is respectively fixed on the first plane (20) and third plane (22) by screw.

2. The integrated brake-by-wire pedal of claim 1, wherein, The output end of the pedal force simulator is fixed with a lead screw (17), and the lead screw (17) is sleeved with an axial force joint (7) on the outer wall.

3. The integrated brake-by-wire pedal of claim 2, wherein, The outer wall of the lead screw (17) is respectively connected with a thin nut (18) and a thick nut (19) by screw thread, and the thin nut (18) and the thick nut (19) are respectively arranged on the outer wall of the axial force joint (7).

4. The integrated brake-by-wire pedal of claim 1, wherein, The outer wall of the shell (1) is respectively provided with a mounting hole (3) at the four corners.

5. The integrated brake-by-wire pedal of claim 1, wherein, The outer wall of the cantilever beam (10) is fixed with a reinforcing cross beam (11), and the outer wall of the cantilever beam (10) and the shell (1) is provided with a plurality of weight reduction holes (12).

6. The integrated brake-by-wire pedal of claim 1, wherein, The outer wall of the installation shell (2) is fixed with a plurality of reinforcing ribs (8).

7. The integrated brake-by-wire pedal of claim 5, wherein, The outer wall of the shell (1) is fixed with a plurality of mounting convex points (14), and the outer wall of the installation shell (2) is provided with a plurality of fixing holes (13).

8. The integrated brake-by-wire pedal of claim 7, wherein, The fixing hole (13) is fixed with a plurality of fixing caps (16) by screw, and the outer wall of the fixing cap (16) is fixed with a pedal force simulator cover plate (15), and the pedal force simulator cover plate (15) is fixed on the outer wall of the pedal force simulator.

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