A test vehicle throttle brake working condition automatic control device

Abstract

This utility model discloses an automatic control device for the throttle and brake conditions of a test vehicle, belonging to the field of vehicle control technology. It includes a fixed bracket, a controller and a host computer, a stepper motor and a lead screw, front and rear control levers, and a connecting lever. This device, through the coordinated control of the host computer and controller, controls the rotation direction and amplitude of the stepper motor, enabling the connecting lever to move forward or backward. This replaces the manual actions of pressing the accelerator and brake pedals, reducing human error and improving the accuracy of test data.

Description

Technical Field

[0001] This utility model relates to the field of vehicle control technology, and in particular to an automatic control device for the throttle and brake conditions of a test vehicle. Background Technology

[0002] In vehicle fuel consumption testing, test vehicles need to be equipped with a rotating drum for simulated operating conditions. In existing technologies, operators must frequently manually press the accelerator and brake pedals, leading to foot fatigue. Test data is also susceptible to human error, resulting in inaccurate data, repeated testing, and increased costs. Existing devices have low automation levels and lack versatility; therefore, there is an urgent need for an automated control device that can replace manual operation and improve testing accuracy. Utility Model Content

[0003] The purpose of this invention is to overcome the problems of inaccurate test data, high cost of repeated testing and low versatility caused by manual operation in the prior art, and to provide an automatic control device for the throttle and brake conditions of a test vehicle.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An automatic control device for throttle and brake operation of a prototype vehicle includes:

[0006] A fixed bracket includes a base plate and a connecting fixing plate. The base plate is installed below the driver's seat, the lower end of the connecting fixing plate is connected to the base plate, and the upper end of the connecting fixing plate extends upward.

[0007] The controller and host computer are installed on the base plate and collect vehicle speed, throttle opening and engine speed data in real time through the OBD interface. The host computer is connected to the controller.

[0008] A stepper motor and a lead screw, wherein the stepper motor is connected to a controller and drives the lead screw to rotate;

[0009] The front and rear control levers are linked to the screw threaded rod and are connected to the accelerator and brake respectively via adjustable length connecting rods; the front and rear control levers, screw threaded rods, and connecting rods are all mounted on the connecting fixing plate.

[0010] In some embodiments, an automatic control device for throttle and brake conditions of a test vehicle is provided, wherein the base plate is a 3mm thick steel plate.

[0011] In some embodiments, an automatic control device for throttle and brake conditions of a test vehicle is provided, wherein the base plate is mounted below the driver's seat via seat mounting bolts.

[0012] In some embodiments, an automatic control device for the throttle and brake conditions of a test vehicle is provided, wherein the stepper motor is connected to the controller via a cable.

[0013] In some embodiments, an automatic control device for throttle and brake conditions of a test vehicle is provided, wherein the connecting rod is composed of an extended stud and an internally threaded cylinder.

[0014] It should be further noted that the technical features corresponding to the above embodiments can be combined or substituted with each other to form new technical solutions without conflict.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses a host computer and a controller to collaboratively control the rotation direction and amplitude of the stepper motor, enabling the connecting rod to move forward or backward. Automated control replaces manual accelerator and brake pedal actions, reducing human error and improving the accuracy of test data.

[0017] 2. Applicable to any automatic transmission vehicle, highly versatile;

[0018] 3. The structure is compact and easy to install. It is fixed by seat bolts and does not require modification of the original vehicle structure.

[0019] 4. Reduce testing costs and operator workload. Attached Figure Description

[0020] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the present application. The same reference numerals are used in these drawings to denote the same or similar parts. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application.

[0021] Figure 1 This is a schematic diagram of the structure of an automatic control device for throttle and brake conditions of a test vehicle according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the control logic of an automatic control device for throttle and brake conditions on a test vehicle according to an embodiment of the present invention;

[0023] Figure 3 This is a side view of an automatic control device for throttle and brake conditions of a test vehicle according to an embodiment of the present invention.

[0024] The numbers in the diagram are: 1-base plate; 2-connecting fixing plate; 3-controller; 4-OBD interface; 5-stepper motor; 6-screw screw; 7-control rod; 8-connecting rod. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be noted that the directions or positional relationships indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" etc. are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Reference Figures 1-3 An automatic control device for throttle and brake conditions of a prototype vehicle, comprising:

[0030] The fixed bracket includes a base plate 1 and a connecting fixing plate 2. The base plate 1 is installed below the driver's seat, the lower end of the connecting fixing plate 2 is connected to the base plate 1, and the upper end of the connecting fixing plate 2 extends upward.

[0031] The controller 3 and the host computer are installed on the base plate 1. The controller 3 collects vehicle speed, throttle opening and engine speed data in real time through the OBD interface 4. The host computer is connected to the controller 3.

[0032] A stepper motor 5 and a lead screw 6 are connected, and the stepper motor 5 is connected to the controller 3 to drive the lead screw 6 to rotate;

[0033] The front and rear control levers 7 are linked with the screw rod 6 and are connected to the accelerator and brake respectively through the adjustable length connecting lever 8; the front and rear control levers 7, the screw rod 6, and the connecting lever 8 are all installed on the connecting fixing plate 2.

[0034] Specifically, the base plate 1 is made of 3mm thick steel plate. The controller 3 and the host computer are mounted on the base plate 1. The base plate 1 is mounted below the driver's seat using seat mounting bolts. The middle section includes a connecting fixing plate 2 and a connecting rod 8, which connects the accelerator and brake. The connecting rod 8 is an adjustable length rod composed of an extended stud and an internally threaded cylinder. The upper section includes a stepper motor 5, a lead screw 6, and front and rear control rods 7, which control the accelerator and brake. The stepper motor 5 is connected to the controller 3 via a cable.

[0035] The working principle of this device is as follows:

[0036] The OBD interface collects data in real time and interacts with the controller and the host computer. Controller 3 collects information such as vehicle speed, throttle opening, and engine speed through OBD interface 4 and communicates with the host computer. The host computer and controller 3 work together to control the left and right rotation of stepper motor 5. The rotation of the stepper motor drives the screw 6 to rotate left and right, thus moving the forward and backward control lever 7. When the forward and backward control lever 7 moves forward, it drives the connecting lever 8 connected to the throttle forward, realizing the acceleration; when the forward and backward control lever 7 moves backward, it drives the connecting lever 8 connected to the brake backward, realizing the braking. Automated control replaces manual acceleration and braking actions, reducing human error and improving the accuracy of test data.

[0037] The above detailed embodiments are a detailed description of the present utility model. It should not be considered that the specific embodiments of the present utility model are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present utility model, and all of these should be considered to fall within the protection scope of the present utility model.

Claims

1. An automatic control device for throttle and brake conditions of a test vehicle, characterized in that, include: A fixed bracket includes a base plate and a connecting fixing plate. The base plate is installed below the driver's seat, the lower end of the connecting fixing plate is connected to the base plate, and the upper end of the connecting fixing plate extends upward. The controller and host computer are installed on the base plate and collect vehicle speed, throttle opening and engine speed data in real time through the OBD interface. The host computer is connected to the controller. A stepper motor and a lead screw, wherein the stepper motor is connected to a controller and drives the lead screw to rotate; The front and rear control levers are linked to the screw threaded rod and are connected to the accelerator and brake respectively via adjustable length connecting rods; the front and rear control levers, screw threaded rods, and connecting rods are all mounted on the connecting fixing plate.

2. The automatic control device for throttle and brake conditions of a test vehicle according to claim 1, characterized in that, The base plate is made of 3mm thick steel plate.

3. The automatic control device for throttle and brake conditions of a test vehicle according to claim 1, characterized in that, The base plate is installed under the driver's seat using seat mounting bolts.

4. The automatic control device for throttle and brake conditions of a test vehicle according to claim 1, characterized in that, The stepper motor is connected to the controller via a cable.

5. The automatic control device for throttle and brake conditions of a test vehicle according to claim 1, characterized in that, The connecting rod consists of an extended stud and an internally threaded cylinder.

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