Speed limiting controller for intelligent automobile

Abstract

The invention discloses a speed limiting controller for an intelligent automobile, and relates to the technical field of speed limiting controllers, the speed limiting controller comprises a controller shell arranged on the outer side of a driving shaft, a detection assembly is fixedly mounted on the driving shaft, a supporting shaft is rotatably mounted on the inner wall of the controller shell, and a trigger assembly is fixedly mounted on the supporting shaft; the driving shaft and the supporting shaft are jointly provided with a speed reduction assembly, the detection assembly is used for detecting the rotating speed of the driving shaft, the rotating speed of the driving shaft is normal, the detection assembly is not matched with the triggering assembly, and the rotating speed of the driving shaft is abnormal; according to the speed limiting controller for the intelligent automobile, overload kinetic energy is counteracted through reverse transmission, the rotating speed is forcibly reduced, friction resistance can be increased in time when the rotating speed of the driving shaft is abnormal, and equipment is rapidly stabilized.

Description

Technical Field

[0001] The invention relates to the technical field of speed limit controllers, in particular to a speed limit controller for an intelligent vehicle. Background Art

[0002] Smart cars are new transportation tools that integrate artificial intelligence, sensors, communications and other advanced technologies. They represent the development direction of future cars. Functionally, they have highly automated driving capabilities. Through sensors such as cameras and radars throughout the car body, smart cars can perceive the surrounding environment in real time and accurately identify roads, traffic signs and other vehicles and pedestrians. This enables them to realize functions such as automatic parking, adaptive cruise control and lane keeping. In some specific scenarios, they can even be fully automatic, greatly reducing the burden of driving and improving travel safety. In terms of interactive experience, smart cars have intelligent voice control systems. Users only need to speak commands to control navigation, music, windows and other functions. They can also achieve interconnection between cars and cars, cars and infrastructure, obtain real-time traffic information, and plan the best route. In addition, smart cars usually use new energy power, which is more environmentally friendly and energy-saving. With the continuous advancement of technology, smart cars are gradually entering people's lives, bringing us a more convenient, efficient and safe travel experience, and will also profoundly change the future traffic pattern. The drive motor is the core power component of the smart car. Its output shaft reduces the speed and increases the torque through the reducer, and finally transmits it to the wheels. The reducer, as a key unit for speed regulation, directly affects the efficiency of vehicle power output.

[0003] At present, smart car reducers generally detect speed through sensors, but the dense layout of sensors leads to small space, and disassembly and replacement require higher precision tools, which is time-consuming and labor-intensive, and thus cannot achieve the desired effect. Therefore, we propose a speed limit controller for smart cars. Summary of the invention

[0004] The purpose of the present invention is to provide a speed limit controller for an intelligent vehicle to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a speed limit controller for an intelligent vehicle, comprising a controller housing arranged outside a drive shaft, a detection component fixedly arranged on the drive shaft, a support shaft rotatably mounted on the inner wall of the controller housing, a trigger component fixedly arranged on the support shaft, and a deceleration component is commonly arranged on the drive shaft and the support shaft;

[0006] The detection component is used to detect the rotation speed of the drive shaft. If the rotation speed of the drive shaft is normal, the detection component does not cooperate with the trigger component. If the rotation speed of the drive shaft is abnormal, the trigger component and the detection component are used in intermittent cooperation.

[0007] The triggering component is used for intermittently driving the decelerating component;

[0008] The decelerating component is used for decelerating the drive shaft.

[0009] Preferably, a first fixing ring is fixedly sleeved outside the drive shaft. The detection component includes a first rotating disk, which is fixedly connected to the side of the first fixing ring. The first rotating disk is set as a semi-disk. A track groove is formed on the surface of the first rotating disk, and the track groove is located on the outer ring of the first rotating disk away from the center of the drive shaft. A support rod is fixedly connected to the side of the first rotating disk, and a clamping button is fixedly connected to the end of the support rod.

[0010] Preferably, the triggering component includes a second rotating disk rotatably sleeved outside the support shaft. The second rotating disk is arranged offset on one side of the first rotating disk, and a track button is fixedly connected to the side of the first rotating disk close to the first rotating disk.

[0011] Preferably, four track buttons are provided, and the four track buttons are slidably engaged with the track groove. Four U-shaped grooves are also formed on the surface of the second rotating disk, and the clamping button is slidably engaged with the four U-shaped grooves.

[0012] Preferably, a first sleeve is rotatably sleeved outside the support shaft. The first sleeve is fixedly connected to one side of the second rotating disk. A second sleeve is rotatably connected to the outside of the support shaft. A slider is fixedly connected inside the second sleeve. A chute is formed on the inner wall of the first sleeve, and the slider is slidably engaged with the chute. The second sleeve is rotatably connected to the bottom of the first sleeve, and the second sleeve is fixedly connected to the outside of the drive shaft.

[0013] Preferably, the triggering component further includes a volute spring sleeved outside the first sleeve and the second sleeve. One end of the volute spring is connected to the outside of the first sleeve, and the other end of the volute spring is connected to the outside of the second sleeve.

[0014] Preferably, a support frame is fixedly sleeved outside the drive shaft. A ring is fixedly connected to the end of the support frame. A tooth groove is formed inside the ring, and the tooth groove is set as a segmented tooth alveolar groove.

[0015] Preferably, the decelerating component includes a semi-gear fixedly sleeved outside the drive shaft. An installation shaft is also rotatably connected to the inner wall of the controller housing. A transmission gear is fixedly sleeved outside the installation shaft, and the transmission gear is intermittently engaged with the semi-gear.

[0016] Preferably, a reduction gear is also fixedly connected to the outer side of the second sleeve. The reduction gear is intermittently meshed with the tooth groove, and the reduction gear is continuously meshed with the transmission gear.

[0017] Preferably, the drive shaft is rotatably connected to the inner wall of the controller housing, and the drive shaft is arranged in a multi-section fixed connection.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By setting a detection component, the detection component can monitor the rotation speed of the drive shaft in real time. Under normal conditions, it can ensure that all components of the system operate according to a predetermined periodic motion law. When the speed is abnormal, it can quickly detect the change that the forward rotation speed of the drive shaft increases, and cooperate with the trigger component to perform abnormal processing on the speed.

[0020] 2. By setting a trigger component, when the detection component finds abnormal situations such as abnormal speed, the trigger component can, according to the detected abnormal rotation speed, cooperate with the deceleration component. When the speed is abnormal, it can cause the second rotating disc to change from intermittent rotation to continuous rotation, so that the scroll spring is continuously tightened and drives the support shaft to rotate in the reverse direction, and cooperate with the deceleration component to decelerate the drive shaft.

[0021] 3. By setting a deceleration component, the overload kinetic energy is offset through reverse transmission, and the rotation speed is forcibly reduced. The reduction gear is reversely meshed with the tooth groove, which can increase the frictional resistance in time when the rotation speed of the drive shaft is abnormal, can quickly reduce the rotation speed, make the equipment quickly stable, and prevent further damage caused by too high rotation speed. When disassembling and repairing, it saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the overall sectional structure of the present invention;

[0024] Figure 3 is of the present invention Figure 2 magnification of part A;

[0025] Figure 4 is a schematic diagram of a part of the structure of the present invention;

[0026] Figure 5 is a schematic diagram of a part of the sectional structure of the present invention;

[0027] Figure 6 is a schematic diagram of the detection component structure of the present invention;

[0028] Figure 7 is a schematic diagram of the deceleration component structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the overall structure of the drive shaft of the present invention.

[0030] Figure 9 This is a schematic diagram of the rotational structure of the first sleeve and the second sleeve of the present invention.

[0031] In the figure: 100, drive shaft; 1001, first fixing ring; 1002, support rod; 1003, engaging button; 1004, first sleeve; 1005, second sleeve; 1006, scroll spring; 1007, support frame; 1008, ring; 1009, tooth groove; 200, controller housing; 2001, support shaft; 2002, mounting shaft; 300, detection component; 3001, first rotating disk; 3002, track groove; 400, triggering component; 4001, second rotating disk; 4002, track button; 4003, U-shaped groove; 500, speed reduction component; 5001, half gear; 5002, transmission gear; 5003, reduction gear; 5004, slider; 5005, chute. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: Please refer to Figures 1 - 3 , the present invention provides a technical solution: A speed limit controller for an intelligent vehicle includes a controller housing 200 disposed outside the drive shaft 100. A detection component 300 is fixedly provided on the drive shaft 100. A support shaft 2001 is rotatably installed on the inner wall of the controller housing 200. A triggering component 400 is fixedly provided on the support shaft 2001. A speed reduction component 500 is jointly provided on the drive shaft 100 and the support shaft 2001;

[0034] The detection component 300 is used to detect the rotational speed of the drive shaft 100. When the rotational speed of the drive shaft 100 is normal, the detection component 300 does not cooperate with the triggering component 400. When the rotational speed of the drive shaft 100 is abnormal, the triggering component 400 and the detection component 300 are used intermittently in cooperation;

[0035] The triggering component 400 is used to intermittently drive the speed reduction component 500;

[0036] The speed reduction component 500 is used to reduce the speed of the drive shaft 100.

[0037] As a further limitation of the detection component 300 of the present invention, a first fixing ring 1001 is fixedly sleeved outside the drive shaft 100. The detection component 300 includes a first rotating disk 3001, which is fixedly connected to the side of the first fixing ring 1001. The first rotating disk 3001 is set as a semi-disk. A track groove 3002 is formed on the surface of the first rotating disk 3001. The track groove 3002 is located on the outer ring of the first rotating disk 3001 away from the center of the drive shaft 100. A support rod 1002 is fixedly connected to the side of the first rotating disk 3001, and a clamping button 1003 is fixedly connected to the end of the support rod 1002;

[0038] A first fixing ring 1001 is fixedly sleeved outside the drive shaft 100, and a first rotating disk 3001 is welded to its side. It is a 180° semi-disk, and the rotation range is controlled by arc surface restriction. The semi-disk design ensures intermittent linkage with the trigger component 400, and only triggers mechanical movement within the 180° rotation period. For the track groove 3002 and the clamping button 1003, the track groove 3002 is formed on the outer ring of the first rotating disk 3001 and slidably engages with the track button 4002 of the trigger component 400, converting the rotational movement of the first rotating disk 3001 into intermittent rotational movement of the second rotating disk 4001. The support rod 1002 is fixed to the side of the first rotating disk 3001, and the end is connected to the clamping button 1003 for hard engagement with the U-shaped groove 4003 of the second rotating disk 4001.

[0039] The specific implementation manner of this embodiment is as follows: By setting the detection component 300, in the normal state, while the drive shaft 100 drives the first fixing ring 1001 and the first rotating disk 3001 to rotate, the clamping button 1003 periodically engages with the U-shaped groove 4003 of the second rotating disk 4001. When the second rotating disk 4001 rotates intermittently, the first sleeve 1004 rotates synchronously, so that the scroll spring 1006 is tightened. When the second rotating disk 4001 rotates to the 180° limit position, the clamping button 1003 on the side of the second rotating disk 4001 disengages from the U-shaped groove 4003 on the side of the first rotating disk 3001. At this time, the second rotating disk 4001 stops rotating, the first sleeve 1004 on one side of the first rotating disk 3001 is locked, and the scroll spring 1006 releases energy through the second sleeve 1005. However, due to the intermittent positive rotation of the second sleeve 1005, the support shaft 2001 rotates intermittently during the release process, and it will not affect the reduction gear 5003 that intermittently meshes with the tooth groove 1009;

[0040] When the speed is abnormal, the forward rotation speed of the drive shaft 100 increases, the rest time between the first rotating disk 3001 and the second rotating disk 4001 is shortened, and the meshing frequency between the clamping button 1003 and the U-shaped groove 4003 on the side of the second rotating disk 4001 increases, resulting in the second rotating disk 4001 changing from intermittent rotation to continuous rotation and cooperating with the trigger component 400.

[0041] Embodiment 2: Please refer to Figures 1 - 4 , the present invention provides a technical solution: a speed limit controller for an intelligent vehicle, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0042] As a further limitation of the trigger assembly 400 of the present invention, the trigger assembly 400 includes a second rotating disk 4001 rotatably sleeved outside the support shaft 2001. The second rotating disk 4001 is arranged offset on one side of the first rotating disk 3001. A trajectory button 4002 is fixedly connected to the side of the first rotating disk 3001 close to the first rotating disk 3001. There are four trajectory buttons 4002, and the four trajectory buttons 4002 are slidably engaged with the trajectory grooves 3002. A U-shaped groove 4003 is also formed on the surface of the second rotating disk 4001. There are four U-shaped grooves 4003, and the engaging button 1003 is slidably engaged with the four U-shaped grooves 4003. A first sleeve 1004 is rotatably sleeved outside the support shaft 2001, and the first sleeve 1004 is fixedly connected to the bottom of the second rotating disk 4001. A second sleeve 1005 is rotatably connected to the outside of the support shaft 2001. A slider 5004 is fixedly connected inside the second sleeve 1005. A chute 5005 is formed on the inner wall of the first sleeve 1004, and the slider 5004 is slidably engaged with the chute 5005. The second sleeve 1005 is rotatably connected to the bottom of the first sleeve 1004, and the second sleeve 1005 is fixedly connected to the outside of the drive shaft 100. The trigger assembly 400 further includes a volute spring 1006 sleeved outside the first sleeve 1004 and the second sleeve 1005. One end of the volute spring 1006 is connected to the outside of the first sleeve 1004, and the other end of the volute spring 1006 is connected to the outside of the second sleeve 1005. A support frame 1007 is fixedly sleeved outside the drive shaft 100. A ring 1008 is fixedly connected to the end of the support frame 1007. A tooth groove 1009 is formed inside the ring 1008, and the tooth groove 1009 is a segmented tooth alveolar groove;

[0043] The second rotating disk 4001 is coaxially sleeved outside the drive shaft 100 through the first sleeve 1004, forming an offset arrangement with the first rotating disk 3001. Through the sliding engagement of the trajectory button 4002 and the trajectory groove 3002, and the sliding fit of the U-shaped groove 4003 on the surface of the second rotating disk 4001 and the engaging button 1003, the rotational displacement of the first rotating disk 3001 is converted into the axial offset movement of the second rotating disk 4001, triggering the transmission of mechanical signals. The first sleeve 1004 is fixedly connected to one side of the second rotating disk 4001, and the second sleeve 1005 is rotatably connected to one side of the first sleeve 1004.

[0044] The specific implementation of this embodiment is as follows: By setting the trigger component 400, when the detection component 300 detects abnormal speed, the meshing frequency between the clamping button 1003 and the U-shaped groove 4003 on the side of the second rotating disk 4001 increases, causing the second rotating disk 4001 to change from intermittent rotation to continuous rotation. The continuous rotation of the second rotating disk 4001 causes the first sleeve 1004 to rotate synchronously. The scroll spring 1006 cannot be periodically released but continuously tightens. The rotational motion is transmitted through the first sleeve 1004 to the support shaft 2001, driving the support shaft 2001 to rotate in the reverse direction. When the detection component 300 detects abnormal speed and other situations, the trigger component 400 can cooperate with the deceleration component 500 according to the detected abnormal rotation speed. When the speed is abnormal, it prompts the second rotating disk 4001 to change from intermittent rotation to continuous rotation, thereby causing the scroll spring 1006 to continuously tighten and driving the support shaft 2001 to rotate in the reverse direction, and cooperating with the deceleration component 500.

[0045] Embodiment 3: Please refer to Figures 1 - 8 , the present invention provides a technical solution: a speed limit controller for an intelligent vehicle, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0046] As a further limitation of the deceleration component 500 of the present invention, the deceleration component 500 includes a semi-gear 5001 fixedly sleeved on the outer side of the drive shaft 100. The inner wall of the controller housing 200 is also rotatably connected with a mounting shaft 2002. A transmission gear 5002 is fixedly sleeved on the outer side of the mounting shaft 2002. The transmission gear 5002 meshes intermittently with the semi-gear 5001. A deceleration gear 5003 is also fixedly connected to the outer side of the second sleeve 1005. The deceleration gear 5003 meshes intermittently with the tooth groove 1009. The deceleration gear 5003 is continuously meshed with the transmission gear 5002. The drive shaft 100 is rotatably connected to the inner wall of the controller housing 200, and the drive shaft 100 is provided with a multi-segment fixed connection;

[0047] A support frame 1007 is fixedly sleeved on the outer side of the drive shaft 100. A circular ring 1008 is welded to its end. A tooth groove 1009 is formed in the inner circle of the circular ring 1008 to form a meshing reference surface for the deceleration gear 5003. The tooth groove 1009 is set to be segmented and distributed in an eighth of a circumference, and only meshes when aligned with the deceleration gear 5003, realizing intermittent deceleration control, and meshing intermittently with the transmission gear 5002, converting the rotational motion of the drive shaft 100 into a periodic swing of the transmission gear 5002. It is rotatably connected to the inner wall of the controller housing 200 through the mounting shaft 2002, and has both the functions of power transmission and direction conversion. The transmission gear 5002 is continuously meshed with the deceleration gear 5003, and after being driven by the transmission gear 5002, it meshes with the tooth groove 1009 of the circular ring 1008, and the reverse torque realizes active deceleration.

[0048] The specific implementation of this embodiment is as follows: by setting a reduction assembly 500, in normal state, the driving shaft 100 drives the half gear 5001 to rotate forward, and transmits power to the transmission gear 5002 through intermittent meshing, the transmission gear 5002 and the reduction gear 5003 always maintain a meshing state, forming a stable reduction transmission chain, the tooth groove 1009 inside the ring 1008 and the reduction gear 5003 are periodically disengaged to achieve intermittent transmission control, and the volute spring 1006 releases the stored energy during the rest stage, driving the support shaft 2001 to reset, and the reduction gear 5003 outside the support shaft 2001 rotates in the opposite direction synchronously, driving the transmission gear 5002 to restore the initial meshing position;

[0049] When the speed is abnormal, the rotation speed of the half gear 5001 and the ring 1008 increases abnormally, causing the meshing interval to disappear and entering a continuous transmission state. The support shaft 2001 is acted upon by the reverse driving force, pushing the reduction gear 5003 to reverse, and the reduction gear 5003 and the tooth groove 1009 of the ring 1008 form a torque meshing, increasing the friction resistance. The transmission gear 5002 and the half gear 5001 enter a reverse meshing state, and the overload kinetic energy is offset by reverse transmission, forcing the rotation speed to be reduced. The torque meshing of the reduction gear 5003 and the tooth groove 1009 produces a braking effect, which can increase the friction resistance in time when the rotation speed of the drive shaft 100 is abnormal, and can quickly reduce the rotation speed, so that the equipment can quickly stabilize and prevent further damage caused by excessively high rotation speed. The reduction ratio is achieved through multi-stage gear transmission to meet the low-speed transmission requirements.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed limit controller for an intelligent vehicle, comprising a controller housing (200) arranged outside a drive shaft (100), characterized in that: A detection component (300) is fixedly arranged on the drive shaft (100). A support shaft (2001) is rotatably installed on the inner wall of the controller housing (200). A trigger component (400) is arranged on the support shaft (2001). A speed reduction component (500) is jointly arranged on the drive shaft (100) and the support shaft (2001). The detection component (300) is used to detect the rotation speed of the drive shaft (100). When the rotation speed of the drive shaft (100) is normal, the detection component (300) does not cooperate with the trigger component (400). When the rotation speed of the drive shaft (100) is abnormal, the trigger component (400) intermittently cooperates with the detection component (300). The trigger component (400) is used to intermittently drive the speed reduction component (500). The speed reduction component (500) is used to reduce the speed of the drive shaft (100).

2. The speed limit controller for intelligent vehicles according to claim 1, wherein: A first fixing ring (1001) is fixedly sleeved on the outer side of the drive shaft (100). The detection component (300) includes a first rotating disk (3001). The first rotating disk (3001) is fixedly connected to the side of the first fixing ring (1001). The first rotating disk (3001) is arranged as a semi-circular disk. A track groove (3002) is formed on the surface of the first rotating disk (3001). The track groove (3002) is located on the outer ring of the first rotating disk (3001) far from the center of the drive shaft (100). A support rod (1002) is fixedly connected to the side of the first rotating disk (3001). A clamping button (1003) is fixedly connected to the end of the support rod (1002).

3. The speed limit controller for an intelligent vehicle according to claim 1, characterized in that: The trigger component (400) includes a second rotating disk (4001) rotatably sleeved on the outer side of the support shaft (2001). The second rotating disk (4001) is arranged offset on one side of the first rotating disk (3001). A track button (4002) is fixedly connected to the side of the first rotating disk (3001) close to the first rotating disk (3001).

4. The speed limit controller for intelligent vehicles according to claim 3, characterized in that: There are four track buttons (4002). The four track buttons (4002) are slidably engaged with the track groove (3002). Four U-shaped grooves (4003) are also formed on the surface of the second rotating disk (4001). The clamping button (1003) is slidably engaged with the four U-shaped grooves (4003).

5. The speed limit controller for intelligent vehicles according to claim 1, characterized in that: A first sleeve (1004) is rotatably sleeved outside the support shaft (2001). The first sleeve (1004) is fixedly connected to one side of the second rotating disc (4001). A second sleeve (1005) is rotatably connected to the outside of the support shaft (2001). A slider (5004) is fixedly connected inside the second sleeve (1005). A chute (5005) is formed in the inner wall of the first sleeve (1004). The slider (5004) is slidably engaged with the chute (5005). The second sleeve (1005) is rotatably connected to the bottom of the first sleeve (1004). The second sleeve (1005) is fixedly connected to the outside of the drive shaft (100).

6. The speed limit controller for intelligent vehicles according to claim 5, characterized in that: The trigger assembly (400) further includes a volute spring (1006) sleeved outside the first sleeve (1004) and the second sleeve (1005). One end of the volute spring (1006) is connected to the outside of the first sleeve (1004), and the other end of the volute spring (1006) is connected to the outside of the second sleeve (1005).

7. The speed limit controller for an intelligent vehicle according to claim 1, characterized in that: A support frame (1007) is fixedly sleeved outside the drive shaft (100). A ring (1008) is fixedly connected to the end of the support frame (1007). A tooth groove (1009) is formed inside the ring (1008). The tooth groove (1009) is arranged as a segmented tooth alveolar groove.

8. An intelligent vehicle speed limit controller according to claim 5, characterized in that: The deceleration assembly (500) includes a semi-gear (5001) fixedly sleeved outside the drive shaft (100). A mounting shaft (2002) is rotatably connected to the inner wall of the controller housing (200). A transmission gear (5002) is fixedly sleeved outside the mounting shaft (2002). The transmission gear (5002) is intermittently engaged with the semi-gear (5001).

9. The speed limit controller for an intelligent vehicle according to claim 8, characterized in that: A deceleration gear (5003) is also fixedly connected to the outside of the second sleeve (1005). The deceleration gear (5003) is intermittently engaged with the tooth groove (1009), and the deceleration gear (5003) is continuously engaged with the transmission gear (5002).

10. The speed limit controller for intelligent vehicles according to claim 1, wherein: The drive shaft (100) is rotatably connected to the inner wall of the controller housing (200). The drive shaft (100) is arranged as a multi-section fixed connection.

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