Electronic brake pedal arm and electronic brake pedal device for brake-by-wire

Abstract

The utility model discloses an electronic brake pedal arm and an electronic brake pedal device for brake-by-wire, and the pedal arm comprises a pedal arm body, a supporting piece embedded in the pedal arm body, and a ball head structure which is arranged at the bottom of the pedal arm body and is used for installing a pedal simulator, the pedal arm body, the supporting piece and the ball head structure are integrally formed in an injection molding mode. The pedal arm is subjected to composite injection molding, the process is simple, one-time injection molding is achieved, and welding, surface treatment and other processes are omitted; compared with an all-metal manufacturing process, the product weight is lighter; the pedal simulator can be installed on the pedal arm body through the ball head structure integrally formed with the pedal arm body in an injection molding mode, the structure is simpler, and installation of the pedal simulator is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle brake equipment technical field, concretely relates to a kind of electronic brake pedal arm and electronic brake pedal device for line control brake. BACKGROUND

[0002] Electronic brake pedal device identifies driver intention by pedal movement, and pedal sensor sends pedal signal processing to domain control or vehicle processor, and vehicle is braked according to signal to brake execution unit, to meet the deceleration expectation of driver.

[0003] In the prior art electronic brake pedal device, the pedal arm is mostly metal structure, which is formed by stamping and welding of metal, resulting in a large weight of the entire component, which does not meet the lightweight requirement. In addition, since it is a metal structure, surface treatment such as electroplating is required, which has a complex process and poor environmental protection, and is not conducive to environmental protection. SUMMARY

[0004] The utility model aims at the deficiency in the prior art, and provides an electronic brake pedal arm for line control brake, which has a simple manufacturing process and light structure.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] An electronic brake pedal arm for line control brake includes a pedal arm body, a support embedded in the pedal arm body, and a ball head structure provided at the bottom of the pedal arm body for mounting a pedal simulator. The pedal arm body, the support, and the ball head structure are integrally injection molded.

[0007] In some embodiments, the bottom of the pedal arm body is provided with an inwardly recessed recess, the ball head structure is arranged in the recess, and there is a gap between each side wall of the recess and the outer peripheral surface of the ball head structure to form a clearance space for accommodating the pedal simulator.

[0008] In some embodiments, the ball head structure does not protrude from the bottom surface of the pedal arm body.

[0009] In some embodiments, the support extends along the length direction of the pedal arm body, and the supports are respectively arranged on the left and right sides of the pedal arm body.

[0010] In some embodiments, the supports on the left and right sides are independently arranged; or the supports on the left and right sides are connected by a connecting piece, and the supports on the left and right sides and the connecting piece are integrally formed.

[0011] In some embodiments, the pedal arm body is provided with a shaft hole for connecting a pedal shaft, one end of the pedal arm body is respectively provided with a protruding part protruding outwardly to the left side and the right side, the shaft hole penetrates the protruding parts on the left and right sides and the pedal arm body, and the protruding parts on the left and right sides are integrally injection molded with the pedal arm body.

[0012] In some embodiments, the inner side circumferential surface of the shaft hole is provided with an anti-twist rib extending in the axial direction of the shaft hole, and a plurality of anti-twist ribs are arranged at intervals in the circumferential direction of the shaft hole.

[0013] The outer side circumferential surface of the protruding part is provided with a reinforcing rib, and a plurality of reinforcing ribs are arranged at intervals in the circumferential direction of the shaft hole.

[0014] In some embodiments, the left side, the right side and the bottom of the pedal arm body are respectively provided with a hollow structure.

[0015] In some embodiments, the pedal arm body is made of nylon material, and the support is made of metal material or non-metal composite material.

[0016] The utility model also provides an electronic brake pedal device for wire control brake, the electronic brake pedal device has the electronic brake pedal arm of any one of preceding description.

[0017] Compared with the prior art, the utility model has the following advantages due to the use of the above technical scheme:

[0018] (1) Pedal arm composite injection molding, simple process, one injection molding, saving welding and surface treatment process;

[0019] (2) Pedal arm composite injection molding, compared with all-metal manufacturing process, product weight is lighter;

[0020] (3) Pedal simulator can be installed on the pedal arm body through the ball head structure integrally injection molded with the pedal arm body, and the structure is simpler, and the installation of the pedal simulator is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] ATTACHMENT Figure 1 It is a perspective view (from top to bottom) of the electronic brake pedal arm for wire control brake of the embodiment;

[0022] ATTACHMENT Figure 2 It is a perspective view (from bottom to top) of the electronic brake pedal arm for wire control brake of the embodiment;

[0023] ATTACHMENT Figure 3 It is a side view of the electronic brake pedal arm for wire control brake of the embodiment;

[0024] ATTACHMENTFigure 4 Figure 1 is an exploded schematic view of an electronic brake pedal arm for brake-by-wire of the present embodiment.

[0025] Wherein: 1, pedal arm body; 11, recess; 12, shaft hole; 13, anti-twist rib; 14, hollow structure; 2, support; 3, ball head structure; 4, convex part; 5, reinforcing rib; 6, pedal seat; 7, pedal. DETAILED DESCRIPTION

[0026] In order to make the above objectives, characteristics and advantages of the present application more apparent, understandable and easy to be understood, the present application will be described in detail below with the accompanying drawings and specific embodiments. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than the ones described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0027] In the description of the present application, 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" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application.

[0028] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0032] The electronic brake pedal device for brake-by-wire of this utility model includes a pedal bracket, a pedal arm rotatably mounted on the pedal bracket, and a pedal simulator disposed between the pedal arm and the pedal bracket. Figures 1-4 As shown, the pedal arm includes a pedal arm body 1, a support member 2, and a ball joint structure 3.

[0033] The pedal arm body 1 extends in the front-to-back direction and is made of nylon material, which reduces the weight of the pedal arm.

[0034] The left side, right side and bottom of the pedal arm body 1 are provided with hollow structures 14, which can further reduce the weight of the pedal arm.

[0035] The support member 2 is embedded in the pedal arm body 1, and its main function is to provide support in order to improve the structural strength and rigidity of the pedal arm. The support member 2 can be made of metal or non-metallic composite materials, such as plastic composite materials.

[0036] like Figure 4 As shown, the support member 2 extends along the length direction of the pedal arm body 1, and the support member 2 is respectively arranged on the left and right sides of the pedal arm body 1.

[0037] In this embodiment, the support members 2 on the left and right sides are set independently, and each support member 2 is made by stamping process.

[0038] Of course, in other embodiments, a connecting member may be provided between the left and right support members 2, and the left and right support members 2 and the connecting member are integrally stamped by a stamping process.

[0039] The ball head structure 3 is arranged at the bottom of the pedal arm body 1, and the pedal simulator can be connected with the pedal arm through the ball head structure 3, without the need of installing other components on the pedal arm to connect the pedal simulator, which makes the installation process of the pedal simulator simple, and makes the structure of the whole pedal device compact.

[0040] Specifically, as shown in Figure 2 The bottom of the pedal arm body 1 is provided with a concave portion 11, the ball head structure 3 is arranged in the concave portion 11, and there is a gap between each side wall of the concave portion 11 and the outer circumferential surface of the ball head structure 3, which forms a clearance space for accommodating the pedal simulator, thereby facilitating the installation of the pedal simulator.

[0041] Preferably, the ball head structure 3 does not protrude from the bottom surface of the pedal arm body 1, which makes the pedal arm structure compact and occupies a small space.

[0042] As shown in Figures 1-4 One end of the pedal arm body 1 is provided with a shaft hole 12, the center axis of the shaft hole 12 extends along the left-right direction, the shaft hole 12 cooperates with the pedal shaft, and the shaft hole 12 is sleeved on the pedal shaft, thereby realizing the connection between the pedal arm and the pedal shaft.

[0043] Specifically, one end of the pedal arm body 1 is respectively provided with a protruding portion 4 protruding outward to the left side and the right side, and the shaft hole 12 penetrates through the protruding portions 4 on the left and right sides and the pedal arm body 1.

[0044] The inner circumferential surface of the shaft hole 12 is provided with an anti-twist rib 13 extending along the axial direction of the shaft hole 12. The anti-twist ribs 13 are arranged at intervals along the circumferential direction of the shaft hole 12. By arranging the anti-twist ribs 13, the relative movement between the pedal arm and the pedal shaft after assembly can be prevented.

[0045] The outer circumferential surface of the protruding portion 4 is provided with a reinforcing rib 5. The reinforcing ribs 5 are arranged at intervals along the circumferential direction of the shaft hole 12. By arranging the reinforcing ribs 5, the structural strength of the protruding portion 4 can be improved to prevent deformation of the protruding portion 4, thereby preventing the pedal arm from being unable to normally rotate relative to the pedal support.

[0046] As shown in Figure 4 The other end of the pedal arm body 1 is fixedly provided with a pedal seat 6, and a pedal 7 is installed on the pedal seat 6, which is used for stepping on when braking.

[0047] The pedal arm body 1, the left and right support members 2, the ball head structure 3, the left and right protruding portions 4 and the pedal seat 6 are integrally injection molded by an injection molding process, which can reduce the number of parts, make the pedal arm have good integrity, and does not need additional processing procedures, so that the processing process is simple. In addition, the weight of the pedal arm can be greatly reduced, thereby realizing the lightweight requirement of the pedal arm.

[0048] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An electronic brake pedal arm for brake-by-wire, characterized by: The pedal arm body, the support embedded in the pedal arm body and the ball head structure arranged at the bottom of the pedal arm body for mounting the pedal simulator are integrally injection molded.

2. Electronic brake pedal arm for brake-by-wire, according to claim 1, characterized in that: The bottom of the pedal arm body is provided with an inwardly recessed recess, the ball head structure is arranged in the recess, and a gap is formed between each side wall of the recess and the outer peripheral surface of the ball head structure to form an avoiding space for accommodating the pedal simulator.

3. Electronic brake pedal arm for brake-by-wire, according to claim 2, characterized in that: The ball head structure does not protrude from the bottom surface of the pedal arm body.

4. The electronic brake pedal arm for brake-by-wire, according to claim 1, wherein: The support extends along the length direction of the pedal arm body, and the support is arranged on the left and right sides of the pedal arm body respectively.

5. Electronic brake pedal arm for brake-by-wire, according to claim 4, characterized in that: The supports on the left and right sides are independently arranged respectively; or a connecting piece is connected between the supports on the left and right sides, and the supports on the left and right sides and the connecting piece are integrally formed.

6. The electronic brake pedal arm for brake-by-wire, according to claim 1, wherein: The pedal arm body is provided with a shaft hole for connecting a pedal shaft, one end of the pedal arm body is respectively provided with a protruding portion protruding outwardly to the left side and the right side, the shaft hole penetrates the protruding portions on the left and right sides and the pedal arm body, and the protruding portions on the left and right sides and the pedal arm body are integrally injection molded.

7. Electronic brake pedal arm for brake-by-wire, according to claim 6, characterized in that: A torsion prevention rib extending along the axial direction of the shaft hole is arranged on the inner peripheral surface of the shaft hole, and a plurality of torsion prevention ribs are arranged at intervals along the circumferential direction of the shaft hole. A reinforcing rib is arranged on the outer peripheral surface of the protruding portion, and a plurality of reinforcing ribs are arranged at intervals along the circumferential direction of the shaft hole.

8. The electronic brake pedal arm for brake-by-wire, according to claim 1, wherein: The left side, the right side and the bottom of the pedal arm body are respectively provided with a hollow structure.

9. The electronic brake pedal arm for brake-by-wire, according to claim 1, wherein: The pedal arm body is made of nylon material, and the support is made of metal material or non-metal composite material.

10. An electronic brake pedal device for brake-by-wire, characterized by: An electronic brake pedal arm having any one of the features of claims 1-9.

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