Automobile pedal with high control precision

Abstract

This invention relates to the field of vehicle engineering technology, and more particularly to a high-precision automotive pedal, comprising a base, a pedal bracket, an elastic support member, a pressure column, an elastic pressing member, a first pressure sensor, and a second pressure sensor. One end of the pedal bracket is hinged to one end of the base; one end of the elastic support member is hinged to the middle of the pedal bracket, and the other end of the elastic support member is ball-jointed to one end of the pressure column; the first pressure sensor is disposed at the other end of the base, and the other end of the pressure column presses onto the diaphragm of the first pressure sensor; the second pressure sensor is disposed at the middle of the base, and the other end of the elastic pressing member presses onto the diaphragm of the second pressure sensor. The high-precision automotive pedal provided by this invention improves the control precision of the accelerator and brake, enhances component durability, and has the advantages of low cost, lightweight, and miniaturization.

Description

Technical Field

[0001] This invention relates to the field of vehicle engineering technology, and in particular to a car pedal with high control precision. Background Technology

[0002] The automotive pedal system includes a pedal force acquisition component for collecting the force exerted by the user's pedal. This component includes a sensor for collecting the pedal pressure and a controller for controlling the accelerator or brake based on the collected data. Current methods to improve the accuracy of the pedal force acquisition component focus on enhancing sensor quality and reducing external interference that can affect accuracy, such as through vibration damping. However, these methods cannot fundamentally improve the control precision of the accelerator and brake, nor do they enhance the overall quality of the automotive pedal system. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a car pedal that can improve the accuracy of accelerator and brake control.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a car pedal with high control precision, comprising a base, a pedal bracket, an elastic support, a pressure column, an elastic pressing component, a first pressure sensor, and a second pressure sensor;

[0005] One end of the pedal bracket is hinged to one end of the base;

[0006] One end of the elastic support is hinged to the middle of the pedal bracket, and the other end of the elastic support is ball-jointed to one end of the pressure column.

[0007] The first pressure sensor is disposed at the other end of the base, and the other end of the pressure column presses against the diaphragm of the first pressure sensor;

[0008] The second pressure sensor is disposed in the middle of the base. One end of the elastic pressing member is hinged to the part of the pedal bracket located between one end of the pedal bracket and the middle of the pedal bracket. The other end of the elastic pressing member is pressed onto the diaphragm of the second pressure sensor.

[0009] Furthermore, it also includes a control chip, which is disposed on the base and is connected to the first pressure sensor and the second pressure sensor respectively.

[0010] Furthermore, the pedal bracket is provided with two or more sets of first adjustment holes, and one end of the elastic support is hinged to the first adjustment hole.

[0011] Furthermore, the pedal bracket is provided with two or more sets of second adjustment holes, and one end of the elastic pressing member is hinged to the second adjustment hole.

[0012] Furthermore, one end of the pressure column is provided with a ball head, and the other end of the elastic support is provided with a groove that is rotatably connected to the ball head.

[0013] Furthermore, the elastic support includes a damping rod and a hydraulic cylinder. One end of the damping rod is hinged to the pedal bracket, and the other end of the damping rod extends into the hydraulic cylinder. The hydraulic cylinder is ball-jointed to one end of the pressure column.

[0014] Furthermore, it also includes a guide sleeve, which is disposed on the pressure sensor. The guide sleeve has a through hole, and the other end of the pressure column passes through the through hole and presses onto the diaphragm of the first pressure sensor.

[0015] Furthermore, the inner wall of the through hole is provided with an annular limiting boss, which engages with the pressure post.

[0016] Furthermore, the elastic pressing member includes a spring and a pressing head, one end of the spring is hinged to the pedal bracket, the other end of the spring is connected to one end of the pressing head, and the other end of the pressing head presses against the diaphragm of the second pressure sensor.

[0017] Furthermore, it also includes a first rotating shaft and a second rotating shaft, one end of the pedal bracket is rotatably connected to the base via the first rotating shaft, and one end of the elastic support is rotatably connected to the pedal bracket via the second rotating shaft.

[0018] The beneficial effects of this invention are as follows: It provides a car pedal with high control precision. When the pedal bracket rotates, it is supported by an elastic support member and provides a restoring force. A pressure column presses the diaphragm of a first pressure sensor, causing the first pressure sensor to acquire the pedal's depressing force and record it as the first depressing force. An elastic pressing member presses the diaphragm of a second pressure sensor, causing the second sensor to acquire the pedal's depressing force and record it as the second depressing force. The average of the first and second depressing forces is regarded as the actual depressing force of the pedal. The accelerator opening or brake clamping force is controlled based on the actual depressing force obtained above. Compared with traditional pedal devices, this structure fundamentally improves the accuracy of the process of controlling the accelerator or brake based on the collected depressing force data, and improves the control precision of the accelerator and brake. The elastic support member and the pressure column are connected by a ball joint, which reduces the wear of components and improves the durability of components while ensuring the accuracy of pedal pressure acquisition. Therefore, it is also conducive to improving the accuracy of the pressure sensor data. The device as a whole has the advantages of low cost, lightweight, and miniaturization, and is also easy to disassemble and replace components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a car pedal with high control precision according to an embodiment of the present invention;

[0020] Figure 2 This is a front view of a car pedal with high control precision according to an embodiment of the present invention;

[0021] Figure 3 This is another structural schematic diagram of a car pedal with high control precision according to an embodiment of the present invention;

[0022] Figure 4 This is a partial schematic diagram of a car pedal with high control precision according to an embodiment of the present invention;

[0023] Figure 5 This is another partial schematic diagram of a car pedal with high control precision according to an embodiment of the present invention;

[0024] Figure 6 This is another partial schematic diagram of a car pedal with high control precision according to an embodiment of the present invention;

[0025] Figure 7 This is another partial schematic diagram of a car pedal with high control precision according to an embodiment of the present invention;

[0026] Label Explanation:

[0027] 1. Base; 2. Pedal bracket; 21. First adjustment hole; 22. Second adjustment hole; 3. Elastic support; 31. Groove; 32. Damping rod; 33. Hydraulic cylinder; 4. Pressure column; 41. Ball head; 5. Elastic pressing component; 51. Spring; 52. Pressing head; 6. First pressure sensor; 7. Second pressure sensor; 71. Guide sleeve; 711. Through hole; 8. Control chip; 9. First rotating shaft; 10. Second rotating shaft. Detailed Implementation

[0028] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] This invention provides a car pedal with high control precision, which is applied to the structure of the accelerator and brake pedals of a vehicle.

[0030] Please refer to Figures 1 to 7 A car pedal with high control precision includes a base 1, a pedal bracket 2, an elastic support 3, a pressure column 4, an elastic pressing member 5, a first pressure sensor 6, and a second pressure sensor 7.

[0031] One end of the pedal bracket 2 is hinged to one end of the base 1;

[0032] One end of the elastic support 3 is hinged to the middle of the pedal bracket 2, and the other end of the elastic support 3 is ball-jointed to one end of the pressure column 4.

[0033] The first pressure sensor 6 is disposed at the other end of the base 1, and the other end of the pressure column 4 presses against the diaphragm of the first pressure sensor 6;

[0034] The second pressure sensor 7 is disposed in the middle of the base 1. One end of the elastic pressing member 5 is hinged to the part of the pedal bracket 2 located between one end of the pedal bracket 2 and the middle of the pedal bracket 2. The other end of the elastic pressing member 5 is pressed onto the diaphragm of the second pressure sensor 7.

[0035] As can be seen from the above description, the beneficial effects of the present invention are as follows: It provides a car pedal with high control precision. When the pedal bracket 2 rotates, it is supported by the elastic support member 3 and provided with a restoring force. The pressure column 4 presses the diaphragm of the first pressure sensor 6, so that the first pressure sensor 6 obtains the pedal pressing force and records it as the first pressing force. The elastic pressing member 5 presses the diaphragm of the second pressure sensor 7, so that the second sensor obtains the pedal pressing force and records it as the second pressing force. The average value of the first pressing force and the second pressing force is regarded as the actual pressing force of the pedal. The throttle opening or brake clamping force is controlled according to the actual pressing force obtained above. Compared with the traditional pedal device, this structure fundamentally improves the accuracy of the process of controlling the throttle or brake based on the collected pressing force data, and improves the control precision of the throttle and brake. The elastic support member 3 and the pressure column 4 are connected by a ball joint, which reduces the wear of the components and improves the durability of the components while ensuring the accuracy of the pedal pressure acquisition. Therefore, it is also conducive to improving the accuracy of the pressure sensor data. The device as a whole has the advantages of low cost, lightweight and miniaturization, and is also easy to disassemble and replace components.

[0036] In an optional embodiment, a control chip 8 is also included. The control chip 8 is disposed on the base 1 and is connected to the first pressure sensor 6 and the second pressure sensor 7, respectively.

[0037] As described above, the control chip 8 is used to receive and process the data signals collected by the first pressure sensor 6 and the second pressure sensor 7, thereby controlling the throttle opening or the braking force.

[0038] In an optional embodiment, the pedal bracket 2 is provided with two or more sets of first adjustment holes 21, and one end of the elastic support 3 is hinged to the first adjustment hole 21.

[0039] As described above, the distances from the two or more sets of first adjustment holes 21 to the other end of the elastic support 3 are all different. By connecting to different first adjustment holes 21, the connection point between the elastic support 3 and the pedal bracket 2 can be adjusted, thereby adjusting the "softness" and "hardness" of the pedaling, and adjusting the included angle between the elastic support 3 and the pressure column 4, thereby improving the acquisition accuracy of the first pressure sensor 6.

[0040] In an optional embodiment, the pedal bracket 2 is provided with two or more sets of second adjustment holes 22, and one end of the elastic pressing member 5 is hinged to the second adjustment hole 22.

[0041] As described above, the second adjustment hole 22 is used to adjust the connection point between the elastic pressing member 5 and the pedal bracket 2, thereby adjusting the "softness" and "hardness" of the pedaling and improving the acquisition accuracy of the second pressure sensor 7.

[0042] In an optional embodiment, one end of the pressure column 4 is provided with a ball head 41, and the other end of the elastic support 3 is provided with a groove 31 that is rotatably connected to the ball head 41.

[0043] As can be seen from the above description, the combination of ball head 41 and groove 31 can not only ensure a stable connection between pressure column 4 and elastic support 3, but also reduce wear and protect the pressure sensor.

[0044] In an optional embodiment, the elastic support 3 includes a damping rod 32 and a hydraulic cylinder 33. One end of the damping rod 32 is hinged to the pedal bracket 2, and the other end of the damping rod 32 extends into the hydraulic cylinder 33. The hydraulic cylinder 33 is ball-jointed to one end of the pressure column 4.

[0045] As described above, the damping rod 32 and the hydraulic cylinder 33 work together to provide the user with a comfortable pedal feel and provide a restoring force when the pedal is released.

[0046] In an optional embodiment, a guide sleeve 71 is also included. The guide sleeve 71 is disposed on the pressure sensor. The guide sleeve 71 has a through hole 711. The other end of the pressure column 4 passes through the through hole 711 and presses against the diaphragm of the first pressure sensor 6.

[0047] As can be seen from the above description, the through hole 711 of the guide sleeve 71 plays a guiding and positioning role for the pressure column 4, ensuring that the pressure column 4 moves along the direction of the through hole 711 after receiving the force of the elastic support 3, and presses the diaphragm of the pressure sensor.

[0048] In an optional embodiment, the inner wall of the through hole 711 is provided with an annular limiting boss, which is engaged with the pressure column 4.

[0049] As described above, the annular limiting boss supports and limits the pressure column 4, preventing the pressure column 4 from falling out of the guide sleeve 71 or from being damaged by misoperation of the pressure sensor diaphragm.

[0050] In an optional embodiment, the elastic pressing member 5 includes a spring 51 and a pressing head 52. One end of the spring 51 is hinged to the pedal bracket 2, and the other end of the spring 51 is connected to one end of the pressing head 52. The other end of the pressing head 52 presses against the diaphragm of the second pressure sensor 7.

[0051] As described above, the pressing head 52 is always pressed against the diaphragm of the second pressure sensor 7 under the action of the spring 51, and the change value of the second pressure sensor 7 when stepped on is the stepping force.

[0052] In an optional embodiment, a first rotating shaft 9 and a second rotating shaft 10 are also included. One end of the pedal bracket 2 is rotatably connected to the base 1 via the first rotating shaft 9, and one end of the elastic support 3 is rotatably connected to the pedal bracket 2 via the second rotating shaft 10.

[0053] As can be seen from the above description, the first rotating shaft 9 serves to ensure that the pedal bracket 2 rotates stably on the base 1, and the second rotating shaft 10 is used to ensure that the elastic support 3 rotates stably during the stepping and resetting process.

[0054] Please refer to Figures 1 to 7 The first embodiment of the present invention is: a car pedal with high control precision, including a base 1, a pedal bracket 2, an elastic support 3, a pressure column 4, an elastic pressing member 5, a first pressure sensor 6, and a second pressure sensor 7.

[0055] One end of the pedal bracket 2 is hinged to one end of the base 1;

[0056] One end of the elastic support 3 is hinged to the middle of the pedal bracket 2, and the other end of the elastic support 3 is ball-jointed to one end of the pressure column 4.

[0057] The first pressure sensor 6 is disposed at the other end of the base 1, and the other end of the pressure column 4 presses against the diaphragm of the first pressure sensor 6;

[0058] The second pressure sensor 7 is disposed in the middle of the base 1. One end of the elastic pressing member 5 is hinged to the part of the pedal bracket 2 located between one end of the pedal bracket 2 and the middle of the pedal bracket 2. The other end of the elastic pressing member 5 is pressed onto the diaphragm of the second pressure sensor 7.

[0059] It also includes a control chip 8, which is mounted on the base 1 and is connected to the first pressure sensor 6 and the second pressure sensor 7, respectively. The pedal bracket 2 has two or more sets of first adjustment holes 21, and one end of the elastic support member 3 is hinged to the first adjustment hole 21. The pedal bracket 2 has two or more sets of second adjustment holes 22, and one end of the elastic pressing member 5 is hinged to the second adjustment hole 22.

[0060] One end of the pressure column 4 is provided with a ball head 41, and the other end of the elastic support 3 is provided with a groove 31 that is rotatably connected to the ball head 41. The elastic support 3 includes a damping rod 32 and a hydraulic cylinder 33. One end of the damping rod 32 is hinged to the pedal bracket 2, and the other end of the damping rod 32 extends into the hydraulic cylinder 33. The hydraulic cylinder 33 is ball-hinged to one end of the pressure column 4. A guide sleeve 71 is also included, which is disposed on the pressure sensor. The guide sleeve 71 has a through hole 711, through which the other end of the pressure column 4 passes and presses against the diaphragm of the first pressure sensor 6. The inner wall of the through hole 711 has an annular limiting boss, which engages with the pressure column 4. The elastic pressing member 5 includes a spring 51 and a pressing head 52. One end of the spring 51 is hinged to the pedal bracket 2, and the other end of the spring 51 is connected to one end of the pressing head 52. The other end of the pressing head 52 presses against the diaphragm of the second pressure sensor 7.

[0061] It also includes a first rotating shaft 9 and a second rotating shaft 10. One end of the pedal bracket 2 is rotatably connected to the base 1 through the first rotating shaft 9, and one end of the elastic support 3 is rotatably connected to the pedal bracket 2 through the second rotating shaft 10.

[0062] Please refer to Figures 1 to 5 The difference between Embodiment 2 and Embodiment 1 of the present invention is that the through hole 711 of the guide sleeve 71 is a threaded hole, and the other end of the pressure column 4 along the axis is threaded into the threaded hole. The advantage of using a threaded connection is that it transforms the original vertical lifting motion of the pressure column 4 into a rotary lifting motion, which allows for more precise control of the movement of the pressure column 4, improves the accuracy of pressure transmission and acquisition, and ensures that the elastic support 3 returns to its original position when the pedal is released. At this time, the pressure column 4 will not suddenly and rapidly leave the pressure sensor, making the control of the accelerator and brake more linear, which helps to improve driving quality, and also avoids damage to the sensor caused by excessive pressure.

[0063] Please refer to Figures 1 to 5 The difference between Embodiment 3 and Embodiment 2 of the present invention is that, based on the same concept as Embodiment 2, the second pressure sensor 7 is also provided with a screw hole for threaded engagement with the pressing head 52, so that the pressing head 52 will not suddenly or rapidly approach or leave the pressure sensor.

[0064] The working principle of this invention is as follows: Before use, the first adjustment hole 21 for installing the second rotating shaft 10 is selected to adjust the angle between the axis of the elastic support 3 and the axis of the pressure column 4. The second adjustment hole 22 for installing the elastic pressing member 5 is selected to adjust the "softness" and "hardness" of the pedal body. When the user presses down on the pedal body, the pedal bracket 2 rotates on the base 1. The damping rod 32 of the elastic support 3 and the hydraulic cylinder 33 cooperate to compress. The hydraulic cylinder 33 cooperates with the ball head 41 of the pressure column 4 to drive the pressure column 4 to move along the through hole 711 of the guide sleeve 71. The other end of the pressure column 4 presses the diaphragm of the first pressure sensor 6. At the same time, the pressing head 52 presses the diaphragm of the second pressure sensor 7. The control chip 8 controls the throttle opening or the brake clamping force based on the average value of the first and second pedal forces as the actual pedal force. After the user releases the pedal body, the pedal bracket 2 returns to its original position.

[0065] In summary, this invention provides a high-precision automotive pedal. When the pedal bracket rotates, an elastic support member provides support and a restoring force. A pressure column presses the diaphragm of a first pressure sensor, causing the first pressure sensor to acquire the pedal's depressing force and record it as the first depressing force. An elastic pressing member presses the diaphragm of a second pressure sensor, causing the second sensor to acquire the pedal's depressing force and record it as the second depressing force. The average of the first and second depressing forces is considered the actual depressing force of the pedal. The accelerator opening or brake clamping force is controlled based on the obtained actual depressing force. Compared to traditional pedal devices, this structure fundamentally improves the accuracy of controlling the accelerator or brake based on the collected depressing force data, thus improving the control precision of the accelerator and brake. The elastic support member and the pressure column are connected by a ball joint, which reduces component wear and improves component durability while ensuring the accuracy of pedal pressure acquisition. Therefore, it also helps to improve the accuracy of the pressure sensor data. Overall, this device has the advantages of low cost, lightweight, and miniaturization, and is also easy to disassemble and replace components.

[0066] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A high-precision automobile pedal, characterized by comprising: The base, the pedal support, the elastic support, the pressure column, the elastic pressure cover, the first pressure sensor and the second pressure sensor are included. One end of the pedal support is hinged to one end of the base. One end of the elastic support is hinged to the middle part of the pedal support, and the other end of the elastic support is ball-hinged to one end of the pressure column. The first pressure sensor is arranged at the other end of the base, and the other end of the pressure column is pressed on the diaphragm of the first pressure sensor. The second pressure sensor is arranged at the middle part of the base, one end of the elastic pressure cover is hinged to the part of the pedal support between one end of the pedal support and the middle part of the pedal support, and the other end of the elastic pressure cover is pressed on the diaphragm of the second pressure sensor. A guide sleeve is further included, which is arranged on the first pressure sensor, and the guide sleeve is provided with a through hole, and the other end of the pressure column is pressed on the diaphragm of the first pressure sensor after passing through the through hole. The elastic pressure cover includes a spring and a pressing head, one end of the spring is hinged to the pedal support, the other end of the spring is connected to one end of the pressing head, and the other end of the pressing head is pressed on the diaphragm of the second pressure sensor. The through hole of the guide sleeve is a screw hole, and the other end of the pressure column along the axis is threadedly matched with the screw hole. A screw hole is arranged on the second pressure sensor to threadedly match with the pressing head. The pedal support is provided with two or more groups of first adjusting holes, one end of the elastic support is hinged to the first adjusting hole, so as to adjust the "soft" and "hard" degree of pedaling. The pedal support is provided with two or more groups of second adjusting holes, one end of the elastic pressure cover is hinged to the second adjusting hole, so as to adjust the "soft" and "hard" degree of pedaling.

2. The control precision high automobile pedal according to claim 1, wherein A control chip is further included, which is arranged on the base, and the control chip is connected with the first pressure sensor and the second pressure sensor respectively.

3. The control precision high automobile pedal according to claim 1, wherein One end of the pressure column is provided with a ball head, and the other end of the elastic support is provided with a groove which is rotationally connected with the ball head.

4. The control precision high automobile pedal according to claim 1, wherein The elastic support includes a damping rod and a hydraulic cylinder, one end of the damping rod is hinged to the pedal support, the other end of the damping rod extends into the hydraulic cylinder, and one end of the hydraulic cylinder is ball-hinged to the pressure column.

5. The control precision high automobile pedal according to claim 1, wherein The inner wall of the through hole is provided with an annular limiting boss, and the annular limiting boss is clamped with the pressure column.

6. The control precision high automobile pedal according to claim 1, wherein A first rotation shaft and a second rotation shaft are further included, one end of the pedal support is rotationally connected with the base through the first rotation shaft, and one end of the elastic support is rotationally connected with the pedal support through the second rotation shaft.

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