Test throttle pedal locking fixture

Abstract

This utility model relates to a test accelerator pedal locking fixture, comprising a base, a support frame, and an adjustment mechanism. The base supports the entire fixture and is placed on the driver's seat floor. One end of the support frame is fixedly welded to the base, and the other end extends freely upwards with a U-shaped groove at its top. The adjustment mechanism is located in the U-shaped groove of the support frame and includes a screw and a pair of locking nuts. The screw passes perpendicularly through the U-shaped groove to the support frame. The pair of locking nuts, with a diameter larger than the width of the U-shaped groove, are located on opposite sides of the U-shaped groove and are threadedly engaged with the screw to lock it to the support frame. This fixture has the advantages of convenient installation, high control precision, and low cost, and is suitable for laboratory and real-vehicle testing scenarios.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle testing tooling technology, specifically relating to a test accelerator pedal locking tooling that uses a screw mechanism to precisely adjust and lock the accelerator pedal opening to enable the vehicle to maintain a constant speed during testing. It is suitable for whole vehicle bench testing, durability testing, and driving simulation scenarios. Background Technology

[0002] In existing technologies, constant speed vehicle testing usually relies on driver control. Drivers are prone to fatigue when maintaining the throttle opening for a long time, which can lead to fluctuations in vehicle speed and affect the accuracy of test results.

[0003] Therefore, it is necessary to design a test accelerator pedal locking fixture to replace the driver in vehicle bench testing, durability testing and driving simulation scenarios. Summary of the Invention

[0004] This invention addresses the problem of speed fluctuations caused by human error or electronic system limitations in constant speed testing of vehicles in the prior art. It provides a test throttle pedal locking fixture that can replace manual operation. This fixture adopts a mechanical throttle locking mechanism, which combines low cost, high precision, and strong versatility.

[0005] The technical solution adopted in this utility model is:

[0006] The aforementioned test accelerator pedal locking fixture includes a base, a support frame, and a screw mechanism. The base supports the entire fixture and is placed on the driver's seat floor. One end of the support frame is fixedly welded to the base, and the other end extends freely upward to match the accelerator pedal, with a U-shaped groove at the top of the free end. The adjustment mechanism includes a screw and a pair of locking nuts. The screw is perpendicular to the support frame and passes through the U-shaped groove. The pair of locking nuts have a diameter larger than the width of the U-shaped groove, are located on both sides of the U-shaped groove, and are threadedly engaged with the screw to lock the screw to the support frame.

[0007] The aforementioned test throttle pedal locking fixture includes an adjusting handle at the upper end of the screw. The screw is a precision ball screw with a pitch of 1-3 mm.

[0008] The aforementioned test accelerator pedal locking fixture includes a base comprising a pedestal and a movable counterweight. The pedestal is a box-shaped structure with an open top for holding the counterweight.

[0009] The aforementioned test accelerator pedal locking fixture includes: a base with a square structure; a support frame with an angle steel structure, having a horizontal part welded horizontally to the base and a vertical part welded vertically to the base, and a U-shaped groove at the top of the free end of the horizontal part. Beneficial effects

[0010] This utility model discloses a test accelerator pedal locking fixture. A manually adjustable screw is used to press against the accelerator pedal, and a precision lead screw and dynamic locking nut are used to accurately set and stably maintain the accelerator opening, ensuring the vehicle maintains a constant speed during testing. This fixture features a novel and simple design, is easy to manufacture, has low manufacturing costs, is easy to install and disassemble, and uses appropriate materials. It offers advantages such as convenient installation, high control precision, and low cost, making it suitable for both laboratory and real-vehicle testing scenarios. Attached Figure Description

[0011] Figure 1 This is a front view of the accelerator pedal locking fixture used in the experiment of this utility model;

[0012] Figure 2 This is a top view of the accelerator pedal locking fixture for testing this utility model, without the adjustment mechanism.

[0013] The numbers in the diagram are: 1-base, 11-base, 12-counterweight; 2-support frame, 21-U-shaped groove; 3-adjustment mechanism, 31-screw, 32-locking nut, 33-adjustment handle. Detailed Implementation

[0014] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0015] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0016] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0017] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 As shown, the present invention relates to a test accelerator pedal locking fixture, which is used to lock the accelerator pedal during testing, and includes a base 1, a support frame 2, and an adjustment mechanism 3.

[0019] The base 1 is used to limit and support the entire tooling. It is positioned on the driver's seat floor and adapted to the accelerator pedal. Its weight is greater than the locking force of the adjustment mechanism 3 to ensure that the entire tooling is locked to the accelerator pedal. To reduce the weight of the tooling while adapting to the locking force of different vehicle models, the base 1 includes a base 11 and a movable counterweight 12. The counterweight 12 can be added or removed as needed. Light vehicles do not require counterweights, while heavy vehicles need to add them as needed.

[0020] One end of the support frame 2 is fixedly welded to the base 1, and the other end extends freely upward to match the accelerator pedal. A U-shaped groove 21 is provided at the top of the free end. The support frame 2 can be an angle steel structure, including a horizontal part welded to the base 11 and a vertical part welded to the base 1. The U-shaped groove 21 is provided at the top of the free end of the horizontal part.

[0021] The adjustment mechanism 3 is located in the U-shaped groove 21 of the support frame 2. It is used to adjust the position relative to the center of the accelerator pedal and to precisely adjust the depth of the accelerator pedal according to the required vehicle speed to ensure a constant and uniform vehicle speed. The mechanism includes a screw 31 and a pair of locking nuts 32. The screw 31 is perpendicular to the support frame 2 and passes through the U-shaped groove 21. The pair of locking nuts 32, with a diameter larger than the width of the U-shaped groove 21, are located on both sides of the U-shaped groove 21 and are threadedly engaged with the screw 31 to assemble and fix the screw 31 to the support frame 2. The screw 31 first moves up and down along the U-shaped groove 21 to the center of the accelerator pedal. Then, the screw 31 is adjusted downwards to press the accelerator pedal for precise depth adjustment. Finally, the locking nuts 32 lock the screw 31 in place, ensuring a constant vehicle speed.

[0022] Furthermore, the base 11 of the base 1 adopts a box-type structure with an open top, and the storage space of the base 11 facilitates the placement and removal of the counterweight 12. The base 11 can be any shape such as square, elliptical, or circular.

[0023] Furthermore, the support frame 2 can be an I-beam structure or other structure that can provide support, and a guide groove is provided at the top of the free end.

[0024] Furthermore, an adjustment handle 33 is provided at the upper end of the screw 31 of the adjustment mechanism 3, and the screw 31 is rotated by the adjustment handle 33 to press down the accelerator pedal;

[0025] Screw 31 is a precision ball screw with a pitch of 1-3mm.

[0026] The specific operation of the experimental accelerator pedal locking fixture of this utility model is as follows:

[0027] Place the fixture on the driver's seat floor in a position that corresponds to the accelerator pedal, so that the adjustment mechanism 3 matches the accelerator pedal. Loosen the locking nut 32 until the screw 31 can move relative to the U-shaped groove 21 of the support frame 2. Adjust the screw 31 to the center position of the accelerator pedal. Rotate the adjustment handle 33 to adjust the depth of the screw 31 pressing onto the accelerator pedal. Make precise depth adjustments according to the vehicle speed required for the test. After adjustment, lock the screw 31 with a pair of locking nuts 32 from the top and bottom. At the same time, if the base 1 tilts upward, add counterweight to ensure the stability of the base. Finally, the vehicle maintains a constant speed, thus overcoming the problem that speed fluctuations caused by manual operation can affect the accuracy of the test results.

[0028] The experimental accelerator pedal locking fixture of this utility model is suitable for laboratory and real vehicle testing scenarios, and its technical advantages are as follows:

[0029] 1. High constant speed control accuracy: screw adjustment error ≤ ±0.5%, vehicle speed fluctuation rate <1%;

[0030] 2. No vehicle modification required: Seamless connection with the original vehicle pedals is achieved through mechanical adaptation;

[0031] 3. Strong compatibility: Supports accelerator / electric pedals in gasoline vehicles and electric vehicles;

[0032] 4. Low-cost alternative: Compared with manual operation, the cost is reduced by more than 60%.

[0033] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A test oil pedal locking tool characterized by: The tooling includes a base, a support frame, and an adjustment mechanism; The base is used to support the entire tooling and is placed on the driver's seat floor; One end of the support frame is fixedly welded to the base, and the other end extends freely upward to match the accelerator pedal, and a U-shaped groove is provided on the top of the free end; The adjusting mechanism includes a screw and a pair of locking nuts; the screw is perpendicular to the support frame and passes through the U-shaped groove; the pair of locking nuts have a diameter greater than the width of the U-shaped groove, are located on both sides of the U-shaped groove, and are threadedly engaged with the screw to lock the screw to the support frame.

2. The test oil pedal locking tool according to claim 1, wherein: An adjustment handle is provided at the upper end of the screw.

3. The test oil pedal lock tooling as set forth in claim 1, wherein: The screw is a precision ball screw with a pitch of 1-3mm.

4. The test oil pedal lock tooling as set forth in claim 1, wherein: The base includes a base and a movable counterweight.

5. The test oil pedal lock tooling as set forth in claim 4, wherein: The base is a box-shaped structure with an open top for holding the counterweight.

6. The test accelerator pedal locking fixture as described in claim 1, characterized in that: The base has a square structure; the support frame is an angle steel structure, having a horizontal part welded to the base horizontally and a vertical part welded to the base vertically, and the top of the free end of the horizontal part is provided with the U-shaped groove.

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