CN218858158U - Accelerator pedal mechanism - Google Patents
Accelerator pedal mechanism Download PDFInfo
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- CN218858158U CN218858158U CN202123427228.3U CN202123427228U CN218858158U CN 218858158 U CN218858158 U CN 218858158U CN 202123427228 U CN202123427228 U CN 202123427228U CN 218858158 U CN218858158 U CN 218858158U
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Abstract
An accelerator pedal mechanism comprising: an accelerator pedal; the pedal bracket is connected with the accelerator pedal, and a cavity is formed in the pedal bracket; the vibration damping device is fixed on the inner surface of the cavity and comprises a piezoelectric ceramic piece; and the control module is used for acquiring a first vibration signal from the piezoelectric ceramic piece and outputting a second vibration signal to the piezoelectric ceramic piece according to the first vibration signal. The accelerator pedal mechanism has the advantages of good vibration reduction effect, low design difficulty and high space utilization rate.
Description
Technical Field
The utility model relates to an automotive filed especially relates to an accelerator pedal mechanism.
Background
During driving of the vehicle, there is a road surface, and vibrations generated by dynamic excitation of the vehicle, among which vibrations of the accelerator pedal are more easily perceived by the user.
In the prior art, vibration of the accelerator pedal is passively reduced by optimizing the structure of the accelerator pedal and adding a vibration isolation material between the accelerator pedal and a front wall plate. However, due to the change of the road surface condition and the difference in the structure, the motor, and the like between different vehicles, the vibration characteristics of different vehicles are different, and different vibrations are generated during driving of the same vehicle, so the design of the prior art is poor in the vibration damping pertinence to each vehicle, and thus, the vibration damping effect is also poor. In addition, in the prior art, the structure of the accelerator pedal needs to be optimized, and the vibration isolation material is added between the accelerator pedal and the front wall plate, so that more space needs to be occupied, and correspondingly, the limitation of the space around the accelerator pedal is large, and therefore the design difficulty is also large.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a damping is effectual, and can reduce the design degree of difficulty, promote space utilization's accelerator pedal mechanism.
In order to solve the above technical problem, an embodiment of the utility model provides an accelerator pedal mechanism, include: an accelerator pedal; the pedal bracket is connected with the accelerator pedal, and a cavity is formed in the pedal bracket; the vibration damping device is fixed on the inner surface of the cavity and comprises a piezoelectric ceramic piece; and the control module is used for acquiring a first vibration signal from the piezoelectric ceramic piece and outputting a second vibration signal to the piezoelectric ceramic piece according to the first vibration signal.
Optionally, the vibration damping device further comprises a mounting plate, the mounting plate is fixed on the inner surface of the cavity, and the piezoelectric ceramic plate is fixed on the surface of the mounting plate.
Optionally, the mounting plate is bolted to the pedal bracket.
Optionally, the mounting plate is adhered to the pedal bracket.
Optionally, the piezoelectric ceramic plate is bonded to the surface of the mounting plate.
Optionally, the piezoelectric ceramic plate is connected to the control module by a wire.
Optionally, the control module includes: the first connecting module is electrically connected with the piezoelectric ceramic piece and used for acquiring a first vibration signal generated by the piezoelectric ceramic piece; the second vibration signal module is used for forming a second vibration signal according to the first vibration signal; and the second connecting module is electrically connected with the piezoelectric ceramic piece and is used for outputting a second vibration signal to the piezoelectric ceramic piece.
Optionally, the piezoelectric ceramic plate is wirelessly connected to the control module.
Optionally, the vibration damping device further comprises: the first wireless signal transmission part is electrically connected with the piezoelectric ceramic piece and is used for acquiring and sending the first vibration signal, and the first wireless signal transmission part is also used for receiving the second vibration signal; the control module includes: a second wireless signal transmission section for receiving the first vibration signal and transmitting the second vibration signal; and the second vibration signal module is used for forming a second vibration signal according to the first vibration signal.
Optionally, the second vibration signal module includes: the signal analysis unit is used for acquiring corresponding first vibration frequency, first amplitude and first phase information according to the first vibration signal; and the signal conversion unit is used for acquiring second phase information which is opposite to the first phase information according to the first phase information and forming the second vibration signal according to the first vibration frequency, the first amplitude and the second phase information.
Compared with the prior art, the utility model discloses technical scheme has following beneficial effect:
the technical scheme of the utility model during the accelerator pedal mechanism that provides, work as when accelerator pedal and pedal support produced the vibration, the piezoceramics piece among the vibration damper who is fixed in the cavity internal surface vibrates thereupon, based on piezoceramics material's malleation electric effect, piezoceramics piece produces corresponding first vibration signal. And then, the control module identifies the real-time vibration conditions of the accelerator pedal and the pedal bracket according to the first vibration signal, and outputs a second vibration signal to the piezoelectric ceramic piece. Therefore, the second vibration signal has real-time pertinence to the vibration characteristics of each vehicle and the current road surface condition. On the basis, based on the inverse piezoelectric effect of the piezoelectric ceramic material, the piezoelectric ceramic piece forms corresponding inverse vibration according to the second vibration signal so as to actively inhibit the vibration transmitted to the piezoelectric ceramic piece by the accelerator pedal and the pedal bracket, and meanwhile, the piezoelectric ceramic piece with the vibration inhibited can inhibit the pedal bracket and the accelerator pedal which have a fixed relation with the piezoelectric ceramic piece. Therefore, the targeted active damping effect is realized for the real-time vibration of the accelerator pedal and the pedal bracket of each vehicle, and the real-time performance of signals is ensured. Moreover, because piezoceramics piece can play the vibration monitoring effect as vibration sensor, simultaneously, can also regard as the actuator that takes place the reverse vibration in order to realize the damping, consequently, spare part (vibration sensor) that need use has been reduced, the cost is practiced thrift, and, effectively reduce the space that damping device need occupy, make damping device can set up in the cavity, thereby, through being fixed in the cavity internal surface with damping device, can make damping device's installation and use not receive the peripheral space restriction of accelerator pedal. In conclusion, the accelerator pedal mechanism is good in vibration reduction effect, low in design difficulty and high in space utilization rate.
Drawings
Fig. 1 is a schematic structural diagram of an accelerator pedal mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a vibration damping device 200 according to an embodiment of the present invention;
fig. 3 is a schematic view of a bolt fastening structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control module according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second vibration signal module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control module according to another embodiment of the present invention.
Detailed Description
As described in the background art, due to variations in road surface conditions and differences in structures, motors, and the like between different vehicles, vibration characteristics of different vehicles are different, and different vibrations are generated in the same vehicle during driving, and therefore, the design of the prior art is poor in vibration damping pertinence to each vehicle, and thus, vibration damping effect is also poor. In addition, in the prior art, the structure of the accelerator pedal needs to be optimized, and the vibration isolation material is added between the accelerator pedal and the front wall plate, so that more space needs to be occupied, correspondingly, the limitation of the space around the accelerator pedal is large, and the design difficulty is also large.
In order to solve the technical problem, the utility model provides an accelerator pedal mechanism, include: an accelerator pedal; the pedal bracket is connected with the accelerator pedal, and a cavity is formed in the pedal bracket; the vibration damping device is fixed on the inner surface of the cavity and comprises a piezoelectric ceramic piece; and the control module is used for acquiring a first vibration signal from the piezoelectric ceramic piece and outputting a second vibration signal to the piezoelectric ceramic piece according to the first vibration signal. The accelerator pedal mechanism has the advantages of good vibration reduction effect, low design difficulty and high space utilization rate.
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an accelerator pedal mechanism according to an embodiment of the present invention.
Referring to fig. 1, the accelerator pedal structure includes: an accelerator pedal 100.
During driving of the vehicle, the user performs accelerator control by stepping on the surface of the accelerator pedal 100.
With continued reference to fig. 1, the accelerator pedal structure further includes: a pedal bracket 110 connected to the accelerator pedal 100, the pedal bracket 110 having a cavity 111 therein; a vibration damping device 200 fixed on the inner surface 112 of the cavity 111, wherein the vibration damping device 200 comprises a piezoceramic sheet 210 (shown in fig. 2); the control module 300 is coupled to the piezoelectric ceramic plate 210, and the control module 300 is configured to obtain a first vibration signal from the piezoelectric ceramic plate 210 and output a second vibration signal to the piezoelectric ceramic plate 210 according to the first vibration signal.
When the accelerator pedal 100 and the pedal support 110 vibrate, the piezoceramic sheet 210 in the vibration damping device 200 fixed on the inner surface 112 of the cavity 111 vibrates therewith, and based on the positive piezoelectric effect of the piezoceramic material, the piezoceramic sheet 210 generates a corresponding first vibration signal. Then, the control module 300 identifies real-time vibration conditions of the accelerator pedal 100 and the pedal support 110 according to the first vibration signal, and outputs a second vibration signal to the piezoelectric ceramic plate 210. Therefore, the second vibration signal has real-time pertinence to the vibration characteristics of each vehicle and the current road surface condition.
On the basis, based on the inverse piezoelectric effect of the piezoelectric ceramic material, the piezoelectric ceramic piece 210 forms corresponding inverse vibration according to the second vibration signal, so as to actively suppress the vibration transmitted to the piezoelectric ceramic piece 210 by the accelerator pedal 100 and the pedal bracket 110, and meanwhile, the piezoelectric ceramic piece 210 with suppressed vibration can suppress the pedal bracket 110 and the accelerator pedal 100 which have a fixed relationship with the piezoelectric ceramic piece.
Specifically, when the accelerator pedal 100 and the pedal support 110 vibrate, the piezoceramic sheet 210 vibrates therewith, and the vibrating piezoceramic sheet 210 generates a corresponding electrical signal (a first vibration signal) based on the positive piezoelectric effect of the piezoceramic material. Then, the control module 300 coupled to the piezoceramic wafer 210 forms a corresponding electrical signal (a second vibration signal) according to the first vibration signal, and outputs the second vibration signal to the piezoceramic wafer 210. Based on the inverse piezoelectric effect of the piezoceramic material, the piezoceramic sheet 210 performs inverse vibration according to the second vibration signal, so that the vibration transmitted to the piezoceramic sheet 210 is suppressed by the inverse vibration, i.e., the vibration transmitted to the piezoceramic sheet 210 and the inverse vibration are neutralized and balanced, and the piezoceramic sheet 210 vibrates and weakens until the piezoceramic sheet 210 does not vibrate. Meanwhile, since the vibration damping device 200 is fixed to the inner surface 212 of the cavity 211, the vibrating accelerator pedal 100 and the pedal bracket 110 are driven to be not vibrated by the non-vibration of the piezoceramic sheet 210. When the accelerator pedal 100 and the pedal bracket 110 generate a new vibration different from the current vibration, the piezoceramic sheet 210 vibrates again to acquire a new first vibration signal. Next, the control module 300 forms a new second vibration signal according to the new first vibration signal and outputs the new second vibration signal to the piezoelectric ceramic plate 210, so that the piezoelectric ceramic plate 210 continues to perform corresponding suppression on the new vibration again according to the new second vibration signal to suppress the new vibration generated by the accelerator pedal 100 and the pedal bracket 110.
Thus, the targeted active damping effect is achieved for the real-time vibration generated by the accelerator pedal 100 and the pedal bracket 110 of each vehicle, and the real-time performance of the signal is ensured.
Moreover, since the piezoelectric ceramic plate 210 can serve as a vibration sensor to perform a vibration monitoring function, and can also serve as an actuator for generating reverse vibration to achieve vibration damping, parts (vibration sensors) to be used are reduced, thereby saving cost, and effectively reducing the space occupied by the vibration damping device 200, so that the vibration damping device 200 can be disposed in the cavity, and thus, by fixing the vibration damping device 200 to the inner surface 112 of the cavity 111, the installation and use of the vibration damping device 200 can be free from the space limitation around the accelerator pedal 100. In conclusion, the accelerator pedal mechanism is good in vibration reduction effect, low in design difficulty and high in space utilization rate.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a vibration damping device 200 according to an embodiment of the present invention, where the vibration damping device 200 further includes: the mounting plate 220, the mounting plate 220 is fixed on the inner surface 112 of the cavity 111, and the piezoceramics sheet 210 is fixed on the surface of the mounting plate 220.
Because the mounting plate 220 is fixed on the inner surface 112 of the cavity 111, and the piezoceramic sheet 210 is fixed on the surface of the mounting plate 220, the vibration damping device 200 is fixed, meanwhile, the vibration generated by the accelerator pedal 100 and the pedal bracket 110 can be transmitted to the piezoceramic sheet 210, and the corresponding reverse vibration generated by the piezoceramic sheet 210 according to the second vibration signal can also be transmitted to the accelerator pedal 100 and the pedal bracket 110.
In this embodiment, the mounting plate 220 is bolted to the pedal bracket 110. Thus, the fixing strength between the vibration damping device 200 and the pedal bracket 110 is high.
Referring to fig. 3, fig. 3 is a schematic view of a bolt fixing structure according to an embodiment of the present invention, specifically, a bracket mounting hole (not shown) is formed on the pedal bracket 110, a plate mounting hole (not shown) is formed on the mounting plate 220, and a bolt 230 connects and fixes the mounting plate 220 to the inner surface 112 of the cavity 111 through the bracket mounting hole and the plate mounting hole.
In other embodiments, the mounting plate is adhesively secured to the pedal bracket. Thus, the vibration damping device 200 requires a smaller installation space, while also taking into account a stronger fixing strength between the vibration damping device 200 and the pedal bracket 110.
In the present embodiment, the piezoceramic sheet 210 is bonded and fixed to the surface of the mounting plate 220. Therefore, the installation performance of the piezoelectric ceramic plate 210 is improved, the installation space required for installing the piezoelectric ceramic plate 210 is also reduced, and meanwhile, the stronger fixing strength between the piezoelectric ceramic plate 210 and the installation plate 220 is considered.
In other embodiments, the piezoelectric ceramic plate and the mounting plate can be fixed by bolts.
In the present embodiment, the piezoceramic sheet 210 is wired to the control module 300.
The signal transmission of the wired connection is more stable, and the interference to the wired connection is less, so that the piezoelectric ceramic piece 210 is beneficial to more stably obtaining a more accurate second vibration signal, and thus, the piezoelectric ceramic piece 210 can form more accurate reverse vibration aiming at the vibration of the accelerator pedal 100 and the pedal bracket 110, so as to further improve the active vibration reduction effect.
Specifically, please refer to fig. 4, fig. 4 is a schematic structural diagram of a control module according to an embodiment of the present invention, in which the control module 300 includes: the first connecting module 310 is electrically connected to the piezoceramic wafer 210 and configured to obtain a first vibration signal generated by the piezoceramic wafer 210; a second vibration signal module 320, configured to form a second vibration signal according to the first vibration signal; and the second connecting module 330 is electrically connected to the piezoceramic wafer 210 and configured to output a second vibration signal to the piezoceramic wafer 210.
Specifically, the first connection module 310 is connected to the piezoceramic sheet 210 by a wire to obtain a first vibration signal, and the second connection module 330 is connected to the piezoceramic sheet 210 by a wire to output a second vibration signal to the piezoceramic sheet 210. Meanwhile, the second vibration signal module 320 forms a second vibration signal according to the first vibration signal.
Specifically, please refer to fig. 5, fig. 5 is a schematic structural diagram of a second vibration signal module according to an embodiment of the present invention, in which the second vibration signal module 320 includes: a signal analysis unit 321, configured to obtain a corresponding first vibration frequency, a corresponding first amplitude, and corresponding first phase information according to the first vibration signal; a signal conversion unit 322, configured to obtain second phase information opposite to the first phase information according to the first phase information, and form the second vibration signal according to the first vibration frequency, the first amplitude, and the second phase information.
In another embodiment, the piezoelectric ceramic plate is wirelessly connected with the control module.
The wireless connection does not need a signal wire for signal transmission, so that the installation of the vibration damping device and the control module is less limited, and meanwhile, the installation performance and the maintainability of the vibration damping device and the control module are better.
Specifically, in another embodiment, the vibration damping device further includes: the first wireless signal transmission part is electrically connected with the piezoelectric ceramic piece and used for acquiring and sending a first vibration signal, and the first wireless signal transmission part is also used for receiving a second vibration signal.
Specifically, in another embodiment, please refer to fig. 6, fig. 6 is a schematic structural diagram of a control module according to another embodiment of the present invention, and the control module 400 includes: a second wireless signal transmission section 410 for receiving the first vibration signal and transmitting the second vibration signal; and a second vibration signal module 420, configured to form a second vibration signal according to the first vibration signal.
Further, in another embodiment, the second vibration signal module 420 includes: a signal analysis unit (not shown) for acquiring a corresponding first vibration frequency, a first amplitude, and first phase information from the first vibration signal; a signal conversion unit (not shown) for obtaining second phase information opposite to the first phase information according to the first phase information, and forming the second vibration signal according to the first vibration frequency, the first amplitude, and the second phase information.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (10)
1. An accelerator pedal mechanism, comprising:
an accelerator pedal;
the pedal bracket is connected with the accelerator pedal, and a cavity is formed in the pedal bracket;
the vibration damping device is fixed on the inner surface of the cavity and comprises a piezoelectric ceramic piece;
and the control module is used for acquiring a first vibration signal from the piezoelectric ceramic piece and outputting a second vibration signal to the piezoelectric ceramic piece according to the first vibration signal.
2. The throttle pedal mechanism of claim 1, wherein the vibration damping device further comprises a mounting plate secured to the inner surface of the cavity, the piezoceramic sheet being secured to a surface of the mounting plate.
3. The throttle pedal mechanism of claim 2 wherein the mounting plate is bolted to the pedal bracket.
4. The throttle pedal mechanism of claim 2 wherein the mounting plate is bonded to the pedal bracket.
5. The throttle pedal mechanism of claim 2 wherein the piezoceramic wafer is bonded to a surface of the mounting plate.
6. The throttle pedal mechanism of claim 1, wherein the piezoceramic wafer is wired to the control module.
7. The throttle pedal mechanism of claim 6, wherein the control module includes: the first connecting module is electrically connected with the piezoelectric ceramic piece and used for acquiring a first vibration signal generated by the piezoelectric ceramic piece; the second vibration signal module is used for forming a second vibration signal according to the first vibration signal; and the second connecting module is electrically connected with the piezoelectric ceramic piece and used for outputting a second vibration signal to the piezoelectric ceramic piece.
8. The throttle pedal mechanism of claim 1, wherein the piezoceramic wafer is wirelessly connected to the control module.
9. The throttle pedal mechanism of claim 8, wherein the vibration damping device further includes: the first wireless signal transmission part is electrically connected with the piezoelectric ceramic piece and is used for acquiring and sending the first vibration signal, and the first wireless signal transmission part is also used for receiving the second vibration signal; the control module includes: a second wireless signal transmission section for receiving the first vibration signal and transmitting the second vibration signal; and the second vibration signal module is used for forming a second vibration signal according to the first vibration signal.
10. The accelerator pedal mechanism of claim 7 or 9, wherein the second vibration signal module comprises: the signal analysis unit is used for acquiring corresponding first vibration frequency, first amplitude and first phase information according to the first vibration signal; and the signal conversion unit is used for acquiring second phase information which is opposite to the first phase information according to the first phase information and forming the second vibration signal according to the first vibration frequency, the first amplitude and the second phase information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123427228.3U CN218858158U (en) | 2021-12-31 | 2021-12-31 | Accelerator pedal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123427228.3U CN218858158U (en) | 2021-12-31 | 2021-12-31 | Accelerator pedal mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218858158U true CN218858158U (en) | 2023-04-14 |
Family
ID=87351140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123427228.3U Active CN218858158U (en) | 2021-12-31 | 2021-12-31 | Accelerator pedal mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218858158U (en) |
-
2021
- 2021-12-31 CN CN202123427228.3U patent/CN218858158U/en active Active
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