Pedal performance detection device
By using three comprehensive vibration tables and pedal mechanisms in the electronic accelerator pedal detection device to simulate the operating state of the vehicle, and combining pressure and angle sensors to detect the pedal force and opening, the problem that the prior art cannot detect the performance of the electronic accelerator pedal under actual working conditions is solved, and higher detection reliability and accuracy are achieved.
Patent Information
- Application Number
- CN202420569530.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing electronic accelerator pedal detection technology and devices cannot perform performance detection under the conditions that simulate actual working conditions, resulting in the inability to effectively evaluate the output voltage signal stability of the electronic accelerator pedal under different opening degrees.
A pedal performance detection device is designed to simulate the operating state of the vehicle by installing the electronic accelerator pedal and the pedal mechanism on the three integrated vibration table. On this basis, the motor drive force arm is used to turn to the electronic accelerator pedal, the pedaling force is detected through the pressure sensor, the angle sensor detects the opening degree, and the detection signal is obtained and analyzed through the measurement and control system.
Under the simulated actual working conditions, the performance parameters of the electronic accelerator pedal can be effectively detected, the reliability and accuracy of the detection can be improved, and the safety and reliability of the electronic accelerator pedal can be ensured.
Smart Images
Figure CN222561307U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile detection, in particular to a pedal performance detection device. Background Art
[0002] With the continuous development of intelligent automobile technology, traditional mechanical accelerator pedals are gradually being eliminated, and electronic accelerator pedals are widely used. The traditional accelerator cable controls the throttle opening, and the accelerator opening is changed to output an electrical signal by stepping on the accelerator and transmitting the electrical signal to the controller, thereby controlling the engine or drive motor and changing the driving speed. The use of electronic accelerator pedals can not only achieve a higher energy consumption ratio in engine combustion and more precise control of the drive motor, but also provide drivers with a more comfortable driving experience. In addition, electronic accelerator pedals can also monitor more driving data, and have greatly improved safety, reliability and accuracy compared to traditional accelerators, so they are widely used in various models.
[0003] As one of the important components in smart cars that is highly related to safety, the performance parameters of the electronic accelerator pedal are directly related to driving safety. The performance parameters are mainly reflected in the pressure (including pedaling force and rebound force), opening (including accuracy, repeatability and synchronization), voltage signal, durability, etc. of the electronic accelerator pedal.
[0004] The current electronic accelerator pedal detection technology and devices cannot restore the actual working conditions of the electronic accelerator pedal. During the driving process of the car, the stability of the output voltage signal of the electronic accelerator pedal at different openings is tested in the laboratory to reproduce the actual working conditions, which is of great significance for the performance and reliability detection of components.
[0005] Therefore, there is an urgent need for a pedal performance testing device that can perform performance testing under conditions simulating actual working conditions. Utility Model Content
[0006] The utility model aims to provide a pedal performance detection device, which installs an electronic accelerator pedal and a pedaling mechanism on a three-integrated vibration table and can perform performance detection under the condition of simulating actual working conditions.
[0007] To achieve this purpose, the utility model adopts the following technical solutions:
[0008] A pedal performance detection device is used to detect an electronic accelerator pedal, and the pedal performance detection device comprises:
[0009] A three-in-one vibration platform, on which the electronic accelerator pedal is mounted, and the three-in-one vibration platform is used to simulate the running state of the vehicle;
[0010] A pedal mechanism is installed on the three-in-one vibration table, the pedal mechanism includes a motor, an angle sensor, a force arm and a pressure sensor, one end of the force arm is drivingly connected to the output shaft of the motor, the pressure sensor is installed on the other end of the force arm, the motor is used to drive the force arm to turn to the electronic accelerator pedal, so that the pressure sensor is pressed against the electronic accelerator pedal, the pressure sensor is used to detect the pedaling force applied to the electronic accelerator pedal, and the angle sensor is used to detect the real-time opening of the electronic accelerator pedal;
[0011] A measurement and control system is electrically connected to the pressure sensor and the angle sensor.
[0012] As an optional technical solution, a strip groove is provided at one end of the force arm away from the motor, and the strip groove extends radially along the output shaft of the motor. A fastener passes through the strip groove and fixes the pressure sensor to the force arm, and the distance from the pressure sensor to the central axis of the motor is equal to the rotation radius of the electronic accelerator pedal.
[0013] As an optional technical solution, a pedal is provided on the side of the pressure sensor facing the electronic accelerator pedal, and when the pressure sensor is pressed toward the electronic accelerator pedal, the pedal comes into contact with the electronic accelerator pedal.
[0014] As an optional technical solution, the angle sensor is installed on the output shaft of the motor.
[0015] As an optional technical solution, the pedaling mechanism further includes a reducer and a coupling, and the output shaft of the motor is transmission-connected to the lever arm via the reducer and the coupling.
[0016] As an optional technical solution, the pedal performance detection device also includes a fixture, which is installed on the three-in-one vibration table, and the electronic throttle pedal is rotatably installed on the fixture.
[0017] As an optional technical solution, the measurement and control system includes an industrial computer and an alarm light, and the industrial computer is electrically connected to the pressure sensor and the angle sensor.
[0018] As an optional technical solution, the electronic accelerator pedal is provided with a connector, and a power box is installed on the three-in-one vibration table. The power box is electrically connected to the power supply of the industrial computer, and the power box is used to supply power to the connector and the motor.
[0019] As an optional technical solution, the industrial computer is provided with a touch screen and control buttons.
[0020] As an optional technical solution, the three-in-one vibration table includes a box, the pedaling mechanism and the electronic accelerator pedal are both arranged inside the box, and the measurement and control system is arranged outside the box.
[0021] The beneficial effects of the utility model are:
[0022] The pedal performance detection device provided by the utility model comprises a three-in-one vibration table, a pedaling mechanism and a measurement and control system. The electronic accelerator pedal and the pedaling mechanism are both installed on the three-in-one vibration table. The three-in-one vibration table is used to simulate the running state of the vehicle. Under the condition of simulating the actual working condition of the vehicle, the motor drives the force arm to turn to the electronic accelerator pedal so that the pressure sensor presses against the electronic accelerator pedal. The pressure sensor detects the pedaling force exerted on the electronic accelerator pedal, and the angle sensor detects the real-time opening of the electronic accelerator pedal. The measurement and control system obtains the detection signals fed back by the pressure sensor and the angle sensor, thereby improving the reliability of performance detection. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The utility model is further described in detail below according to the accompanying drawings and embodiments;
[0024] Figure 1 is a schematic structural diagram of a pedal performance detection device according to an embodiment;
[0025] Figure 2 It is a partial structural schematic diagram of the pedal performance detection device described in the embodiment.
[0026] In the figure:
[0027] 100, electronic accelerator pedal; 200, connector;
[0028] 1. Three-in-one vibration table; 11. Box body; 12. Base; 13. Fixed bracket.
[0029] 2. Pedal mechanism; 21. Motor; 22. Angle sensor; 23. Lever; 231. Strip groove; 24. Pressure sensor; 25. Pedal; 26. Speed reducer; 27. Coupling;
[0030] 3. Measurement and control system; 31. Industrial computer; 32. Alarm light; 33. Touch screen; 34. Control button;
[0031] 4. Fixture;
[0032] 5. Remove the power box. DETAILED DESCRIPTION
[0033] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0036] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0037] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
[0038] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0039] like Figure 1 and Figure 2 As shown, the present embodiment provides a pedal performance detection device for detecting an electronic accelerator pedal 100, the pedal performance detection device comprises a three-in-one vibration table 1, a pedaling mechanism 2 and a measurement and control system 3, the electronic accelerator pedal 100 is mounted on the three-in-one vibration table 1, the three-in-one vibration table 1 is used to simulate the running state of the vehicle; the pedaling mechanism 2 is mounted on the three-in-one vibration table 1, the pedaling mechanism 2 comprises a motor 21, an angle sensor 22, a lever arm 23 and a pressure sensor 24, one end of the lever arm 23 is drivingly connected to the output shaft of the motor 21, the pressure sensor 24 is mounted on the other end of the lever arm 23, the motor 21 is used to drive the lever arm 23 to turn toward the electronic accelerator pedal 100, so that the pressure sensor 24 is pressed toward the electronic accelerator pedal 100, the pressure sensor 24 is used to detect the pedaling force applied to the electronic accelerator pedal 100, the angle sensor 22 is used to detect the real-time opening of the electronic accelerator pedal 100; the measurement and control system 3 is electrically connected to the pressure sensor 24 and the angle sensor 22.
[0040] Specifically, the electronic accelerator pedal 100 and the pedaling mechanism 2 are both installed on a three-in-one vibration table 1. The three-in-one vibration table 1 is used to simulate the operating state of the vehicle. Under the condition of simulating the actual working condition of the vehicle, the motor 21 drives the force arm 23 to turn toward the electronic accelerator pedal 100, so that the pressure sensor 24 is pressed toward the electronic accelerator pedal 100. The pressure sensor 24 detects the pedaling force applied to the electronic accelerator pedal 100, and the angle sensor 22 detects the real-time opening of the electronic accelerator pedal 100. The measurement and control system 3 obtains the detection signals fed back by the pressure sensor 24 and the angle sensor 22 to improve the reliability of performance detection.
[0041] When the three-in-one vibration table 1 is not started but the pedal mechanism 2 is started for testing, it is the non-operating performance testing mode. When the three-in-one vibration table 1 and the pedal mechanism 2 are started for testing at the same time, it is the operating performance testing mode. At this time, the three-in-one vibration table 1 provides the vibration, temperature and humidity required for the test, simulating the vehicle operation, which can improve the reliability of the performance test.
[0042] In this embodiment, the three-in-one vibration table 1 is a test box that combines vibration function, temperature adjustment function and humidity adjustment function into one.
[0043] Optionally, a strip groove 231 is provided at one end of the force arm 23 away from the motor 21, and the strip groove 231 extends radially along the output shaft of the motor 21. The fastener passes through the strip groove 231 and fixes the pressure sensor 24 to the force arm 23. The distance from the pressure sensor 24 to the central axis of the motor 21 is equal to the rotation radius of the electronic throttle pedal 100.
[0044] The pedal performance detection device of this embodiment is capable of detecting electronic accelerator pedals 100 of different length specifications. For example, when it is necessary to detect an electronic accelerator pedal 100 of a larger length specification, loosen the fastener and move the pressure sensor 24 so that the pressure sensor 24 is away from the central axis of the motor 21 until the distance from the pressure sensor 24 to the central axis of the motor 21 is equal to the rotation radius of the electronic accelerator pedal 100. Then, the fastener is used to pass through the strip groove 231 and fix the pressure sensor 24 to the force arm 23. Similarly, when it is necessary to detect an electronic accelerator pedal 100 of a smaller length specification, the pressure sensor 24 is moved close to the central axis of the motor 21.
[0045] Optionally, a pedal 25 is provided on the side of the pressure sensor 24 facing the electronic accelerator pedal 100 . When the pressure sensor 24 is pressed toward the electronic accelerator pedal 100 , the pedal 25 comes into contact with the electronic accelerator pedal 100 .
[0046] The pedal 25 separates the pressure sensor 24 from the electronic accelerator pedal 100. The pressure sensor 24 does not directly contact the electronic accelerator pedal 100, thereby avoiding direct rigid collision between the pressure sensor 24 and the electronic accelerator pedal 100, and isolating and protecting the pressure sensor 24. When the pedal 25 contacts the electronic accelerator pedal 100, the pedal 25 and the electronic accelerator pedal 100 slide relative to each other, resulting in less friction and less impact on the detection result.
[0047] Optionally, the angle sensor 22 is installed on the output shaft of the motor 21 to improve the detection accuracy of the rotation angle of the lever arm 23.
[0048] Optionally, the pedal mechanism 2 further includes a reducer 26 and a coupling 27, and the output shaft of the motor 21 is transmission-connected to the lever arm 23 via the reducer 26 and the coupling 27. The reducer 26 can reduce speed, and the coupling 27 transmits power to the lever arm 23.
[0049] Optionally, the pedal performance detection device further includes a fixture 4 , which is mounted on the three-integrated vibration table 1 , and the electronic accelerator pedal 100 is rotatably mounted on the fixture 4 .
[0050] Optionally, the measurement and control system 3 includes an industrial computer 31 and an alarm light 32, and the industrial computer 31 is electrically connected to the pressure sensor 24 and the angle sensor 22. The alarm light 32 is used for alarming to provide prompts, and the industrial computer 31 can control the start and speed of the motor 21 and the operation of the three-integrated vibration table 1.
[0051] Optionally, the electronic accelerator pedal 100 is provided with a connector 200 , and a power box 5 is installed on the three-in-one vibration table 1 . The power box 5 is electrically connected to the power supply of the industrial computer 31 , and the power box 5 is used to supply power to the connector 200 and the motor 21 .
[0052] Optionally, the industrial computer 31 is provided with a touch screen 33 and control buttons 34. The control buttons 34 include a start button, a stop button, and an emergency brake button.
[0053] Optionally, the three-in-one vibration table 1 includes a box 11, the pedal mechanism 2 and the electronic accelerator pedal 100 are both arranged inside the box 11, and the measurement and control system 3 is arranged outside the box 11. The pedal mechanism 2 and the electronic accelerator pedal 100 are both arranged inside the box 11, and the performance test is performed under closed conditions. The temperature and humidity inside the box 11 may affect the normal operation of the measurement and control system 3. Setting the measurement and control system 3 outside the box 11 can avoid this situation.
[0054] Optionally, a base 12 is provided inside the box body 11 , the clamp 4 is installed on the base 12 , a fixing bracket 13 is also installed on the base 12 , and the motor 21 is fixedly installed on the fixing bracket 13 .
[0055] This embodiment also provides a detection method, which uses the pedal performance detection device provided in this embodiment to perform performance detection on the electronic accelerator pedal 100. The detection method includes the following steps:
[0056] S100, selecting a test mode, and performing the test in the operating performance detection mode, i.e., starting the three-in-one vibration table 1, and setting the vibration frequency, temperature parameters, and humidity parameters corresponding to the vehicle driving environment, or performing the test in the non-operating performance detection mode, i.e., not starting the three-in-one vibration table 1.
[0057] S200 , fix the electronic accelerator pedal 100 on the fixture 4 , and turn on the power of the industrial computer 31 .
[0058] S300, setting the test opening range threshold, pressure threshold and voltage signal threshold of the electronic accelerator pedal 100 in the measurement and control system 3, and setting the number of test cycles, pressing the start button, and starting the test.
[0059] S400, start the motor 21, the power output by the motor 21 is transmitted to the lever arm 23 after passing through the reducer 26 and the coupling 27, the driving lever arm 23 applies a stepping action to the electronic accelerator pedal 100, and the pressure sensor 24 obtains the stepping force and the rebound force.
[0060] S500. When the pressure feedback from the pressure sensor 24 is greater than 0, it is determined that the pedal 25 is in contact with the electronic accelerator pedal 100, and the angle sensor 22 begins to obtain the real-time opening of the electronic accelerator pedal 100, from 0 opening to full stroke, and reciprocates to complete the pedaling action and rebound action for the set number of test cycles.
[0061] S600. During the detection process, when the detection parameters exceed the pressure threshold and the voltage signal threshold, the alarm light flashes; when a momentary interruption of the connector 200 is detected that exceeds the standard, the alarm light stays on.
[0062] S700, after the detection is completed, the motor 21 drives the force arm 23 away from the electronic accelerator pedal 100, the pedal 25 is separated from the electronic accelerator pedal 100, and the signal parameters obtained by the pressure sensor 24 and the angle sensor 22 are uploaded to the industrial computer 31. The industrial computer 31 processes the data and outputs a performance parameter graph with the opening angle as the horizontal axis and the pedaling force, rebound force and voltage signal as the vertical axis. The graph is displayed on the touch screen 33, and the original data and the performance parameter graph are automatically saved. The performance parameter graph is compared with the performance parameter graph of the pedal standard part. If the error range is exceeded, the electronic accelerator pedal 100 is judged to be unqualified, and if it is within the error range, the electronic accelerator pedal 100 is judged to be qualified.
[0063] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A pedal performance detection device for detecting an electronic accelerator pedal (100), characterized in that: The pedal performance detection device comprises: A three-in-one vibration table (1), the electronic accelerator pedal (100) is installed on the three-in-one vibration table (1), and the three-in-one vibration table (1) is used to simulate the running state of a vehicle; A pedal mechanism (2) is installed on the three-in-one vibration table (1), the pedal mechanism (2) comprises a motor (21), an angle sensor (22), a lever arm (23) and a pressure sensor (24), one end of the lever arm (23) is drivingly connected to the output shaft of the motor (21), the pressure sensor (24) is installed on the other end of the lever arm (23), the motor (21) is used to drive the lever arm (23) to turn toward the electronic accelerator pedal (100), so that the pressure sensor (24) is pressed against the electronic accelerator pedal (100), the pressure sensor (24) is used to detect the pedal force applied to the electronic accelerator pedal (100), and the angle sensor (22) is used to detect the real-time opening of the electronic accelerator pedal (100); The measurement and control system (3) is electrically connected to the pressure sensor (24) and the angle sensor (22).
2. The pedal performance detection device according to claim 1, characterized in that: A strip groove (231) is provided at one end of the force arm (23) away from the motor (21), the strip groove (231) extending radially along the output shaft of the motor (21), a fastener passes through the strip groove (231) and fixes the pressure sensor (24) to the force arm (23), and the distance from the pressure sensor (24) to the central axis of the motor (21) is equal to the rotation radius of the electronic accelerator pedal (100).
3. The pedal performance detection device according to claim 2, characterized in that: A pedal (25) is provided on the side of the pressure sensor (24) facing the electronic accelerator pedal (100); when the pressure sensor (24) is pressed toward the electronic accelerator pedal (100), the pedal (25) contacts the electronic accelerator pedal (100).
4. The pedal performance detection device according to claim 1, characterized in that: The angle sensor (22) is mounted on the output shaft of the motor (21).
5. The pedal performance detection device according to claim 1, characterized in that: The pedaling mechanism (2) further comprises a reducer (26) and a coupling (27), and the output shaft of the motor (21) is transmission-connected to the lever arm (23) via the reducer (26) and the coupling (27).
6. The pedal performance detection device according to claim 1, characterized in that: The pedal performance detection device further comprises a fixture (4), wherein the fixture (4) is mounted on the three-integrated vibration table (1), and the electronic accelerator pedal (100) is rotatably mounted on the fixture (4).
7. The pedal performance detection device according to claim 1, characterized in that: The measurement and control system (3) comprises an industrial computer (31) and an alarm light (32); the industrial computer (31) is electrically connected to the pressure sensor (24) and the angle sensor (22).
8. The pedal performance detection device according to claim 7, characterized in that: The electronic accelerator pedal (100) is provided with a connector (200), and a power box (5) is installed on the three-in-one vibration table (1). The power box (5) is electrically connected to the power supply of the industrial computer (31), and the power box (5) is used to supply power to the connector (200) and the motor (21).
9. The pedal performance detection device according to claim 8, characterized in that: The industrial computer (31) is provided with a touch screen (33) and control buttons (34).
10. The pedal performance detection device according to claim 1, characterized in that: The three-in-one vibration table (1) comprises a box (11), the pedaling mechanism (2) and the electronic accelerator pedal (100) are both arranged inside the box (11), and the measurement and control system (3) is arranged outside the box (11).