CN216555061U - Anti-lock braking device and electric vehicle - Google Patents
Anti-lock braking device and electric vehicle Download PDFInfo
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- CN216555061U CN216555061U CN202122743352.4U CN202122743352U CN216555061U CN 216555061 U CN216555061 U CN 216555061U CN 202122743352 U CN202122743352 U CN 202122743352U CN 216555061 U CN216555061 U CN 216555061U
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Abstract
The utility model belongs to the technical field of electric vehicle braking, and discloses an anti-lock device and an electric vehicle, wherein the anti-lock device comprises an anti-lock cam arranged in a hub, two symmetric brake shoes are arranged in the hub, driving parts are arranged at two ends of each brake shoe, the driving parts on different brake shoes are arranged in a one-to-one correspondence manner, and two ends of the anti-lock cam are respectively abutted against the two driving parts at one end of each brake shoe; the electric vehicle comprises the anti-lock device. According to the anti-lock device and the electric vehicle, when the brake locking condition occurs, the anti-lock cam rotates, so that the brake shoe and the hub are in locking and separating reciprocating circulation, the mutual locking between the hub and the brake shoe is eliminated, the structure is simple, the operation is convenient, the production cost is effectively reduced, and the driving safety is improved.
Description
Technical Field
The utility model relates to the technical field of electric vehicle braking, in particular to an anti-lock device and an electric vehicle.
Background
In recent years, with the increasing awareness of global energy conservation and emission reduction, people take electric vehicles to go out more and more generally, and the electric vehicles are increasingly favored by consumers due to the characteristics of economy, convenience, energy conservation, environmental protection and the like, and also become important transportation tools for people to go out for a short distance. However, the electric vehicle is a two-wheeled vehicle, which is obviously inferior to a three-wheeled vehicle or a four-wheeled vehicle in running stability, and the safety of the vehicle is affected to some extent when the vehicle runs on a snow-covered road surface or a sand-mud road surface.
Among the factor that influences electric motor car driving safety, brake performance is one of the factor that can not neglect, and electric motor car anti-lock braking device among the prior art mostly realizes through the oil pressure dish is stopped, and this kind of device cost is higher, and the cost is expensive, and anti-lock system on the market controls the degree of difficulty big, and the wheel is difficult to release after braking is locked, still can appear the problem that the vehicle was slided after locking.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-lock device and an electric vehicle, and aims to solve the problems of complex anti-lock structure, high production cost and high control difficulty in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an anti-lock device comprising:
the anti-lock cam is arranged in the hub, two symmetric brake shoes are arranged in the hub, driving parts are arranged at two ends of each brake shoe and are positioned on the different brake shoes in a one-to-one correspondence mode, two ends of the anti-lock cam are respectively abutted to two driving parts at one end of each brake shoe, and when the brake shoes are locked on the hub, the anti-lock cam can rotate to relieve the mutual locking between the hub and the brake shoes.
Optionally, the anti-lock brake device further comprises an anti-lock drive mechanism, and when the brake shoe is locked to the hub, the anti-lock drive mechanism can drive the anti-lock cam to rotate so as to release the mutual locking between the hub and the brake shoe.
Optionally, the method further comprises:
the anti-lock detection module comprises a rear wheel speed detection module, and the rear wheel speed detection module can measure the rear wheel speed of the vehicle;
and the anti-lock control module is in communication connection with the rear wheel speed detection module and can receive the rear wheel rotating speed measured by the rear wheel speed detection module and control the anti-lock driving mechanism to rotate.
Optionally, the anti-lock detection module further includes a front wheel speed detection module, the front wheel speed detection module is in communication connection with the anti-lock control module, the front wheel speed detection module is used for measuring the front wheel speed of the vehicle, and the anti-lock control module can receive the front wheel speed measured by the front wheel speed detection module and control the anti-lock driving mechanism to rotate.
Optionally, the anti-lock detection module further includes a displacement detection module, the displacement detection module is in communication connection with the anti-lock control module, the displacement detection module is used for measuring displacement data of the vehicle, and the anti-lock control module can receive the displacement data measured by the displacement detection module and generate the running speed of the vehicle.
Optionally, a brake cam is further disposed on an inner side of the hub, two ends of the brake cam respectively abut against the two driving portions at the other ends of the two brake shoes, and when the hub is braked, the brake cam can drive the brake shoes to abut against the hub.
Optionally, a return spring is further arranged in the hub, one end of the return spring is connected with one of the brake shoes, and the other end of the return spring is connected with the other brake shoe.
Optionally, the return spring is provided in plurality.
Optionally, two ends of the anti-lock cam are provided with a protruding portion, and the two protruding portions are symmetrically arranged, and when the anti-lock cam is in a non-working state, the protruding portions abut against the driving portion.
An electric vehicle comprising an anti-lock device as defined in any one of the preceding claims.
Has the advantages that:
when the anti-lock device and the electric vehicle are applied to the electric vehicle, the anti-lock cam is arranged in the wheel hub, two ends of the anti-lock cam are abutted to two driving parts at one end of two brake shoes, when the electric vehicle brakes, the brake shoes are abutted to and rub the wheel hub, when the wheel is locked in the braking process, the anti-lock cam rotates to enable the brake shoes and the wheel hub to form locking, separating, re-locking and re-separating circulation actions, so that the mutual locking between the wheel hub and the brake shoes is eliminated, the anti-lock device and the electric vehicle are simple in structure and convenient to operate, a complex anti-lock structure of an oil pressure disc brake is replaced, the production cost is effectively reduced, the wheel can be effectively prevented from slipping on the road surface after being locked, and the driving safety is improved.
Drawings
FIG. 1 is a schematic view showing the construction of an anti-lock brake apparatus according to the present invention;
FIG. 2 is a schematic view showing a construction of an anti-lock brake apparatus according to the present invention;
FIG. 3 is a schematic view showing a flow of operation of the anti-lock brake apparatus according to the present invention;
fig. 4 is a schematic flow chart of an antilock brake system control system according to the present invention.
In the figure:
100. an anti-lock cam; 110. a projection;
200. a hub; 210. a brake shoe; 211. a drive section; 220. a brake cam; 230. a return spring;
300. an anti-lock drive mechanism;
410. a rear wheel speed detection module; 420. a front wheel speed detection module; 430. a displacement detection module;
500. and an anti-lock control module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
In the process of braking at the vehicle, when the braking force that wheel hub received is too big or the frictional force between wheel and ground is too little, wheel hub will be locked totally, the vehicle will lose the stability of straight line travel under this condition, take place dangerous situation such as sideslip, afterbody jerk very easily, specifically, when the front wheel locks, the vehicle can lose the steering capacity, can't be controlled and avoid barrier or pedestrian, when the rear wheel locks, the vehicle can lose overall stability and lead to sideslip, will cause personnel's injures and deaths when serious, the personal safety of vehicle driver and crew is threatened to above-mentioned condition seriously. In order to solve the problems, an ABS (antilock brake system) anti-lock device is developed, and the ABS anti-lock device can automatically control the braking force of a brake when a vehicle brakes, so that a wheel is not locked and is in a rolling and slipping state, that is, the adhesion between the wheel and the ground is maintained at a maximum value, thereby further ensuring the personal and property safety of passengers.
At present, ABS anti-lock braking system is widely used on 2-wheel vehicles such as bicycle, electric vehicle, motorcycle, etc. except for being applied to automobile, the anti-lock braking system of two-wheel electric vehicle in the prior art mostly adopts the mode of oil pressure dish brake, namely, hydraulic oil is used as the medium, the anti-lock braking system constantly controls the repeated movement of the hydraulic cylinder inside to drive the brake block to repeatedly clamp the dish disc to realize anti-lock work during working, the cost of the driving device is higher, the manufacturing cost is high, the operation control difficulty is higher, the requirement on the internal hydraulic control system is higher, once the problems of oil leakage and the like occur, the effectiveness of the anti-lock braking system is seriously influenced.
The embodiment provides an electric vehicle, the electric vehicle includes anti-lock brake device, as shown in fig. 1, anti-lock brake device includes anti-lock cam 100, anti-lock cam 100 sets up in wheel hub 200, is provided with two symmetric brake shoes 210 in wheel hub 200, and brake shoe 210 both ends all are provided with drive unit 211, are located the difference drive unit 211 on the brake shoe 210 one-to-one sets up, and anti-lock cam 100's both ends respectively butt in two drive unit 211 of one of them end of brake shoe 210, and when brake shoe 210 locks wheel hub 200, anti-lock cam 100 can rotate in order to relieve the mutual locking between wheel hub 200 and brake shoe 210. In this embodiment, when braking is performed, the brake shoe 210 outwards supports against the hub 200, when the braking force applied to the hub 200 by the brake shoe 210 is too large or the friction force of the wheel on the ground is too small, the brake shoe 210 can completely lock the hub 200, in this case, by providing the anti-lock cam 100, when the anti-lock device works, the anti-lock cam 100 rotates, so that a locking, separating, re-locking and re-separating circulating action is formed between the brake shoe 210 and the hub 200, thereby removing the mutual locking between the hub 200 and the brake shoe 210, and the anti-lock device has a simple structure, effectively reduces the production cost of the electric vehicle, replaces a complex anti-lock structure of an oil pressure disc brake, is convenient to operate and maintain, and can effectively prevent the wheel from slipping on the road surface after being locked, thereby improving the driving safety of the electric vehicle.
Further, the anti-lock device further includes an anti-lock driving mechanism 300, wherein when the brake shoe 210 is locked to the hub 200, the anti-lock driving mechanism 300 can drive the anti-lock cam 100 to rotate to release the mutual locking between the hub 200 and the brake shoe 210. In this embodiment, the anti-lock driving mechanism 300 is preferably a motor, and may be other driving devices, which are not limited herein.
Further, a brake cam 220 is further disposed inside the hub 200, both ends of the brake cam 220 respectively abut against the two driving portions 211 at the other ends of the two brake shoes 210, and the brake cam 220 can drive the brake shoes 210 to abut against the hub 200 when the hub 200 is braked. Specifically, as shown in fig. 1 to 2, when braking is performed, the brake cam 220 rotates, the two driving portions 211 abutted to the brake cam 220 are driven to move outwards, the distance between the two driving portions 211 on the side is increased, so that the two symmetrical brake shoes 210 move outwards, and can abut against and rub the hub 200, thereby reducing the rotation speed of the hub 200.
Further, the two ends of the anti-lock cam 100 are provided with the protrusions 110, and the two protrusions 110 are symmetrically arranged, and when the anti-lock cam 100 is in the non-operating state, the protrusions 110 abut against the driving portion 211. Specifically, as shown in fig. 2 to 3, when the anti-lock cam 100 is in a non-operating state, the protrusion 110 abuts against the driving portion 211, that is, the distance between the two driving portions 211 abutting against the anti-lock cam 100 is the largest in this state, when the anti-lock device is in operation, the anti-lock cam 100 rotates, the distance between the two driving portions 211 abutting against the anti-lock cam 100 gradually decreases while the two brake shoes 210 gradually separate from the hub 200, so as to release the locking between the brake shoes 210 and the hub 200, and as the anti-lock cam 100 continues to rotate, the distance between the two driving portions 211 abutting against the anti-lock cam 100 increases again, and the brake shoes 210 are locked to the hub 200 again, that is, a locking, separating, and re-locking work cycle is formed, so as to reliably and effectively implement the anti-lock work of the wheel. In addition, in the embodiment, when the anti-lock cam 100 is in the non-operating state, the protrusion 110 is disposed to abut against the driving portion 211, so that the distance variation between the two driving portions 211 abutting against the anti-lock cam 100 is larger, the separation effect between the brake shoe 210 and the hub 200 is more obvious in the process of rotating the anti-lock cam 100, and the reliability and the effectiveness of the anti-lock device are further ensured.
Further, a return spring 230 is further disposed in the hub 200, one end of the return spring 230 is connected to one of the brake shoes 210, and the other end of the return spring 230 is connected to the other brake shoe 210. When the brake is released, the brake cam 220 is returned, and the return spring 230 can pull the two brake shoes 210 to move back inwards, so as to release the contact and friction between the brake shoes 210 and the hub 200. Further, the return spring 230 is provided in plural, so that the return effect of the traction brake shoe 210 can be effectively improved, and in the present embodiment, the number of the return spring 230 is preferably, but not limited to, two.
In this embodiment, as shown in fig. 1 and 4, the anti-lock device further includes an anti-lock detection module and an anti-lock control module 500, wherein the anti-lock detection module includes a rear wheel speed detection module 410, the rear wheel speed detection module 410 is capable of measuring a rear wheel speed of the vehicle, the anti-lock control module 500 is in communication with the rear wheel speed detection module 410, and the anti-lock control module 500 is capable of receiving the rear wheel speed measured by the rear wheel speed detection module 410 and controlling the anti-lock driving mechanism 300 to rotate. Specifically, an anti-lock device is installed on a rear wheel of the electric vehicle, when the electric vehicle is running, the rear wheel speed detection module 410 can detect the running speed of the rear wheel of the electric vehicle in real time, when the rear wheel is locked during braking of the electric vehicle, the rear wheel speed detection module 410 sends a detected abnormal rear wheel rotating speed signal to the anti-lock control module 500, the anti-lock control module 500 drives the anti-lock driving mechanism 300 of the rear wheel to rotate after receiving the abnormal rear wheel rotating speed signal, and the anti-lock driving mechanism 300 rotates to drive the anti-lock cam 100 to rotate, so that anti-lock control of the rear wheel is effectively realized.
Further, the anti-lock detection module further includes a front wheel speed detection module 420, the front wheel speed detection module 420 is in communication connection with the anti-lock control module 500, the front wheel speed detection module 420 is used for measuring the front wheel speed of the vehicle, and the anti-lock control module 500 can receive the front wheel speed measured by the front wheel speed detection module 420 and control the anti-lock drive mechanism 300 to rotate. Specifically, an anti-lock device is also installed on the front wheel of the electric vehicle, when the electric vehicle is running, the front wheel speed detection module 420 can detect the running speed of the front wheel of the electric vehicle in real time, when the front wheel is locked during the braking process of the vehicle, the front wheel speed detection module 420 sends the detected abnormal front wheel speed signal to the anti-lock control module 500, the anti-lock control module 500 drives the anti-lock drive mechanism 300 of the front wheel to rotate after receiving the abnormal front wheel speed signal, and the anti-lock drive mechanism 300 rotates to drive the anti-lock cam 100 to rotate, thereby effectively realizing the anti-lock control of the front wheel. In this embodiment, the wheel speed measuring devices in the rear wheel speed detecting module 410 and the front wheel speed detecting module 420 may be hall wheel speed sensors, and may also be other types of wheel speed measuring devices, which are not limited herein.
Further, the anti-lock detection module further comprises a displacement detection module 430, the displacement detection module 430 is in communication connection with the anti-lock control module 500, the displacement detection module 430 is used for measuring displacement data of the vehicle, and the anti-lock control module 500 is capable of receiving the displacement data measured by the displacement detection module 430 and generating the running speed of the vehicle. Specifically, when the electric vehicle travels, the displacement detecting module 430 measures displacement data of the electric vehicle in real time and transmits the displacement data to the anti-lock control module 500, the anti-lock control module 500 receives the displacement data and generates a real-time traveling speed of the electric vehicle, and the anti-lock control module 500 compares the generated traveling speed with the received front wheel rotational speed and rear wheel rotational speed. Under the conditions of normal running and braking, the difference value between the running speed and the rotating speed of the front wheels and the rotating speed of the rear wheels is in a normal range, and at the moment, the anti-lock device does not work; when the front wheel or the rear wheel of the vehicle is locked or the rotating speed of the front wheel or the rear wheel of the vehicle is greatly reduced in a short time, so that the corresponding wheel tends to be locked, the difference value between the driving speed and the rotating speed of the corresponding wheel exceeds a normal range, at the moment, the anti-lock control device 500 controls the anti-lock driving mechanism 300 of the corresponding wheel to rotate, the anti-lock driving mechanism 300 rotates to drive the anti-lock cam 100 to rotate, and therefore the locked wheel is subjected to more comprehensive and effective anti-lock control.
The embodiment also provides an electric vehicle which comprises the anti-lock device. The anti-lock device is applied to the electric vehicle, so that the beneficial effects of the anti-lock device with the scheme are achieved, and the detailed description is omitted.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An anti-lock brake device, characterized by comprising:
anti-lock cam (100) sets up in wheel hub (200), be provided with two symmetric brake shoes (210) in wheel hub (200), brake shoes (210) both ends all are provided with drive division (211), and are located the difference brake shoes (210) on drive division (211) one-to-one sets up, anti-lock cam (100) both ends respectively butt in two of brake shoes (210) one of them one end drive division (211), work as brake shoes (210) lock in when wheel hub (200), anti-lock cam (100) can rotate in order to relieve wheel hub (200) with the mutual locking between brake shoes (210).
2. Anti-lock braking system according to claim 1, characterized in that it further comprises an anti-lock drive mechanism (300), said anti-lock drive mechanism (300) being capable of driving said anti-lock cam (100) to rotate to release the mutual locking between said wheel hub (200) and said brake shoes (210) when said brake shoes (210) are locked to said wheel hub (200).
3. The anti-lock brake system according to claim 2, further comprising:
an anti-lock detection module comprising a rear wheel speed detection module (410), the rear wheel speed detection module (410) being capable of measuring a rear wheel speed of the vehicle;
the anti-lock control module (500), the rear wheel speed detection module (410) with anti-lock control module (500) communication connection, anti-lock control module (500) can receive the rear wheel rotational speed that rear wheel speed detection module (410) surveyed, and control anti-lock actuating mechanism (300) rotates.
4. Anti-lock braking system according to claim 3, characterized in that said anti-lock detection module further comprises a front wheel speed detection module (420), said front wheel speed detection module (420) being in communication with said anti-lock control module (500), said front wheel speed detection module (420) being adapted to measure a front wheel speed of said vehicle, said anti-lock control module (500) being adapted to receive said front wheel speed measured by said front wheel speed detection module (420) and to control said anti-lock drive mechanism (300) to rotate.
5. Anti-lock braking system according to claim 3, characterized in that said anti-lock detection module further comprises a displacement detection module (430), said displacement detection module (430) being in communication with said anti-lock control module (500), said displacement detection module (430) being adapted to measure displacement data of said vehicle, said anti-lock control module (500) being adapted to receive said displacement data measured by said displacement detection module (430) and to generate a driving speed of said vehicle.
6. Anti-lock braking system according to claim 1, characterized in that a brake cam (220) is further disposed on the inner side of the hub (200), two ends of the brake cam (220) respectively abut against two driving portions (211) at the other ends of the two brake shoes (210), and when the hub (200) is braked, the brake cam (220) can drive the brake shoes (210) to abut against the hub (200).
7. Anti-lock braking system according to claim 1, characterized in that a return spring (230) is further arranged in said hub (200), one end of said return spring (230) being connected to one of said brake shoes (210), the other end of said return spring (230) being connected to the other of said brake shoes (210).
8. Anti-lock braking system according to claim 7, characterized in that said return spring (230) is provided in plurality.
9. Anti-lock braking system according to claim 1, characterized in that both ends of said anti-lock cam (100) are provided with a protrusion (110), and that both said protrusions (110) are symmetrically arranged, said protrusions (110) abutting against said driving portion (211) when said anti-lock cam (100) is in a non-operative state.
10. An electric vehicle characterized by comprising the anti-lock brake device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743352.4U CN216555061U (en) | 2021-11-10 | 2021-11-10 | Anti-lock braking device and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122743352.4U CN216555061U (en) | 2021-11-10 | 2021-11-10 | Anti-lock braking device and electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN216555061U true CN216555061U (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122743352.4U Active CN216555061U (en) | 2021-11-10 | 2021-11-10 | Anti-lock braking device and electric vehicle |
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| CN (1) | CN216555061U (en) |
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2021
- 2021-11-10 CN CN202122743352.4U patent/CN216555061U/en active Active
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