CN221737795U - Intelligent trolley line control braking system - Google Patents
Intelligent trolley line control braking system Download PDFInfo
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- CN221737795U CN221737795U CN202323302182.1U CN202323302182U CN221737795U CN 221737795 U CN221737795 U CN 221737795U CN 202323302182 U CN202323302182 U CN 202323302182U CN 221737795 U CN221737795 U CN 221737795U
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- oil pump
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- 239000000428 dust Substances 0.000 claims description 20
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 10
- 239000004576 sand Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of intelligent trolley braking and discloses an intelligent trolley brake-by-wire system, which comprises a CAN bus controller and a brake-by-wire system connected with the CAN bus controller, wherein the brake-by-wire system comprises a bus oil pump and four disc brakes respectively arranged on the inner sides of four wheels of the intelligent trolley, each disc brake comprises a brake disc and a hydraulic brake caliper, the brake disc is synchronously connected with an output shaft of a hub motor, the hydraulic brake caliper is fixedly connected with a vehicle body, the bus oil pump is respectively connected with the hydraulic brake calipers in the four disc brakes through four oil pipes, and the CAN bus controller is connected with the bus oil pump through a CAN bus. The utility model has the advantages of sensitive braking effect, high braking speed, high degree of automation, simple structure, convenient installation, good reliability, high safety, long service life and the like.
Description
Technical Field
The utility model relates to the technical field of intelligent trolley braking, in particular to an intelligent trolley brake-by-wire system.
Background
With the development of unmanned technology, intelligent trolleys of various types on the market are coming out successively. In order to realize unmanned driving, various auxiliary systems of the traditional automobile are required to be correspondingly improved, wherein the auxiliary systems comprise a braking system, and the braking system is an extremely important component part in unmanned automatic driving vehicles. In the running process of the unmanned automatic driving vehicle, the vehicle is required to perform braking actions of decelerating and stopping rapidly according to various emergency conditions met by the road under the condition of unmanned automatic driving, so that the safety and reliability of the vehicle in the running process are ensured.
The common braking system generally consists of hydraulic mechanical parts such as a booster, a vacuum pump and the like, has certain delay in theory from the process of stepping on a brake pedal to the process of actually establishing braking force during braking, and completely relies on human force to perform braking operation, so that the working requirement of the intelligent trolley is difficult to meet; the brake-by-wire system is transmitted by electric signals, and the hydraulic system is driven by the electric signals to form braking force, so that compared with a common brake system, the brake-by-wire system has the advantages of more sensitive braking effect, faster braking speed and more importantly, no need of personally operating, and therefore, the working requirement of an intelligent trolley can be met.
The patent of the utility model with the bulletin number of CN209395777U discloses a new energy automobile brake-by-wire device which can be used for a vehicle driven by a person and also can be used for an unmanned (namely an intelligent trolley). After receiving the braking signal, the braking controller sends a percentage instruction of rated braking moment to the braking motor, the braking motor acts according to the issuing instruction to drive the braking electric cylinder to push the braking oil pump to push the braking liquid in the pump to each braking pipeline to squeeze the braking calipers, so that braking action is carried out. However, since the motor and the control unit are both on the wheel side, a lot of dust is generated by friction between the wheel and the ground during braking, which affects the service lives of the motor and the control unit, and improvement is needed.
Disclosure of utility model
The utility model aims to provide an intelligent trolley brake-by-wire system which has the advantages of sensitive braking effect, high braking speed, high degree of automation, simple structure, convenient installation, good reliability, high safety, long service life and the like.
The technical aim of the utility model is realized by the following technical scheme:
the intelligent trolley wire control braking system comprises a CAN bus controller and a wire control braking system connected with the CAN bus controller, wherein the wire control braking system comprises a bus oil pump and four disc brakes respectively installed on the inner sides of four wheels of the intelligent trolley, each disc brake comprises a brake disc and a hydraulic brake caliper, the brake disc is synchronously connected with an output shaft of a hub motor, the hydraulic brake caliper is fixedly connected with a vehicle body, the bus oil pump is respectively connected with the hydraulic brake calipers in the four disc brakes through four oil pipes, and the CAN bus controller is connected with the bus oil pump through a CAN bus.
Through adopting above-mentioned technical scheme, in-process that in-wheel motor rotated drives the synchronous rotation of brake disc, works as CAN bus control
When the controller receives the braking signal, a control command is sent to the bus oil pump through the CAN bus, the bus oil pump respectively feeds oil to the hydraulic brake calipers in the four disc brakes through the four oil pipes, so that the hydraulic brake calipers in the four disc brakes tightly clamp the brake disc, the brake disc stops rotating, and the wheels stop rotating, thereby achieving the purpose of braking, when the CAN bus controller receives the braking stopping signal, a control command is sent to the bus oil pump through the CAN bus, the bus oil pump stops feeding oil to the hydraulic brake calipers in the four disc brakes through the four oil pipes, the hydraulic brake calipers in the four disc brakes release the brake disc, so that the brake disc CAN continue to rotate along with the hub motor, the purpose of canceling braking is achieved, the brake-by-wire system and the CAN bus controller are transmitted by electric signals, the hydraulic system is driven by the electric signals to form braking force, manual force application is not needed, the braking effect is sensitive, the braking speed is high, the degree of automation is high, the disc brakes are provided with calipers directly connected with oil pipes, the complexity of mechanical system components is greatly reduced, the reliability and the safety of the system are higher, the installation is simple, and the workload of whole vehicle assembly is small.
The utility model is further provided with: the novel intelligent automobile is characterized in that protection devices used for resisting dust are arranged outside the CAN bus controller and the four disc brakes, each protection device comprises a cover body fixedly connected with the automobile body, each cover body is of a rectangular structure with one side open, a folded edge used for being connected with the automobile body is arranged at the edge of the bottom opening of each cover body, bolt holes used for being connected with the automobile body are formed in the folded edge, and through holes used for being connected with an oil pipe and a bus oil pump are further formed in the cover bodies located outside the four disc brakes respectively.
Through adopting above-mentioned technical scheme, protector is arranged in rotating the in-process for CAN bus controller and four dishes to stop grit and dust, has effectively avoided grit and dust collision or get into CAN bus controller and four dishes to stop in and cause damage scheduling problem to CAN bus controller and four dishes for whole drive-by-wire braking system life is longer.
The utility model is further provided with: the two sides of the cover body, which are opposite to the walking direction of the car body, are respectively provided with a heat dissipation window, and impellers are arranged in the heat dissipation windows.
Through adopting above-mentioned technical scheme, set up the circulation of air of realization cover body inner chamber that the cover body is relative with automobile body walking direction and outside in the both sides that the cover body CAN be fine to realize the heat dissipation of cover body inner chamber, in braking or driving the in-process, because inertia, the air CAN get into the cover body from one side heat dissipation window and follow opposite side heat dissipation window and discharge the cover body, the heat in the cover body has been taken away in the in-process of advancing one and go out, and CAN drive impeller high-speed rotation in the in-process of advancing heat dissipation window in addition, impeller makes the internal circulation of air speed of cover further increased in rotatory in-process, the radiating effect of the cover body is better, effectively avoided CAN bus controller and dish to stop because of the problem of damage of high temperature, thereby effectively improve the life of system.
The utility model is further provided with: the side plates of the cover body, which are parallel to the traveling direction of the vehicle body, are respectively provided with a plurality of through holes which are parallel to the traveling direction of the vehicle body, and the inner walls of the side plates of the cover body, which are parallel to the traveling direction of the vehicle body, are uniformly provided with a plurality of heat dissipation holes which are respectively communicated with the through holes.
Through adopting above-mentioned technical scheme, when the air flows to the heat dissipation window of cover body opposite side from the heat dissipation window of cover body one side, the outside air of cover body can get into and flow from the other end of through-hole simultaneously from the one end of through-hole to take away the heat on the cover body curb plate, realize cooling operation to cover body itself, and the through-hole passes through the inner chamber intercommunication of louvre and cover body, can also further realize the internal and external air exchange of cover, utilize the internal and external air exchange of cover body can further realize the heat dissipation operation of cover body, thereby further improve the life of system.
The utility model is further provided with: and dustproof nets covering the radiating windows and the through holes are respectively arranged on two sides of the cover body, which are opposite to the walking direction of the vehicle body.
Through adopting above-mentioned technical scheme, the dust screen is used for preventing grit or dust and gets into the cover body through heat dissipation window and through-hole for the cover body is when satisfying good radiating effect, CAN also effectively avoid grit and dust collision or get into CAN bus controller and four discs and stop and cause damage scheduling problem to CAN bus controller and four discs, guarantees that whole drive-by-wire braking system life is longer.
The beneficial effects of the utility model are as follows:
1. The brake force is formed by the electric signal transmission of the brake control system and the CAN bus controller, the hydraulic system is driven by the electric signal, manual force application is not needed, the braking effect is sensitive, the braking speed is high, the degree of automation is high, the caliper in the disc brake is directly connected with the oil pipe, the complexity of mechanical system components is greatly reduced, the reliability and the safety of the system are higher, the installation is simple, and the workload of whole vehicle assembly is small.
2. According to the utility model, the protection device is a CAN bus controller and four disc brakes to resist sand and dust in the wheel rotation process, so that the problems that the sand and dust collide or enter the CAN bus controller and the four disc brakes to damage the CAN bus controller and the four disc brakes are effectively avoided, the service life of the whole brake-by-wire system is longer, the cover body in the protection device dissipates heat by utilizing the heat dissipation window and the through holes, and the problem that the CAN bus controller and the disc brakes are damaged due to high temperature is effectively avoided, so that the service life of the system is effectively prolonged.
3. According to the invention, the dust screen is used for preventing sand and dust from entering the cover body through the radiating window and the through holes, so that the cover body CAN effectively avoid the problems that sand and dust collide or enter the CAN bus controller and the four disc brakes to damage the CAN bus controller and the four disc brakes and the like while meeting a good radiating effect, and the service life of the whole brake-by-wire system is ensured to be longer.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the brake-by-wire system of the intelligent trolley of the present utility model.
Fig. 2 is a schematic diagram of the external structure of a protection device in the brake-by-wire system of the intelligent trolley.
Fig. 3 is a schematic diagram of the internal structure of the protection device in the brake-by-wire system of the intelligent trolley.
In the figure, 1, a CAN bus controller; 2. a disc brake; 21. a brake disc; 22. a hydraulic brake caliper; 3. a hub motor; 4. an oil pipe; 5. a protective device; 51. a cover body; 52. folding edges; 53. a through hole; 54. a heat radiation window; 55. a dust screen; 56. an impeller; 57. a through hole; 58. a heat radiation hole; 59. bolt holes; 6. bus oil pump.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1 to 3, the intelligent trolley brake-by-wire system comprises a CAN bus controller 1 and a brake-by-wire system connected with the CAN bus controller 1, wherein the brake-by-wire system comprises a bus oil pump 6 and four disc brakes 2 respectively installed on the inner sides of four wheels of the intelligent trolley, each disc brake 2 comprises a brake disc 21 and a hydraulic brake caliper 22, the brake disc 21 is synchronously connected with an output shaft of a hub motor 3, the hydraulic brake caliper 22 is fixedly connected with a vehicle body, the bus oil pump 6 is respectively connected with the hydraulic brake calipers 22 in the four disc brakes 2 through four oil pipes 4, and the CAN bus controller 1 is connected with the bus oil pump 6 through a CAN bus.
Further, the outside that CAN bus controller 1 and four dish were stopped 2 all is equipped with the protector 5 that is used for keeping out the dust, protector 5 includes the cover body 51 with automobile body fixed connection respectively, cover body 51 is one side open-ended rectangle structure, the bottom open edge of cover body 51 is equipped with and is used for the hem 52 with automobile body coupling, be equipped with on the hem 52 be used for with automobile body coupling's bolt hole 59, still be equipped with the through-hole 53 that is used for oil pipe 4 and bus oil pump 6 to be connected respectively on the outside cover body 51 of four dish to stop 2.
Further, two sides of the cover 51 opposite to the running direction of the vehicle body are respectively provided with a heat dissipation window 54, the heat dissipation window 54 is provided with a dust screen 55, and an impeller 56 is arranged in the heat dissipation window 54.
Further, the side plates of the cover body 51 parallel to the vehicle body traveling direction are provided with a plurality of through holes 57 parallel to the vehicle body traveling direction, and the inner walls of the side plates of the cover body 51 parallel to the vehicle body traveling direction are uniformly provided with a plurality of heat dissipation holes 58 respectively communicated with the through holes 57.
Further, a dust screen 55 is provided on both sides of the cover 51 opposite to the traveling direction of the vehicle body to cover the heat radiation window 54 and the through hole 57.
The working principle of the utility model is as follows: when the CAN bus controller 1 receives a braking signal, a control command is sent to the bus oil pump 6 through the CAN bus, the bus oil pump 6 respectively feeds oil to the hydraulic brake calipers 22 in the four disc brakes 2 through the four oil pipes 4, so that the hydraulic brake calipers 22 in the four disc brakes 2 tightly clamp the brake disc 21, the brake disc 21 stops rotating, and thus wheels stop rotating, the purpose of braking is achieved, when the CAN bus controller 1 receives the braking stopping signal, a control command is sent to the bus oil pump 6 through the CAN bus, the bus oil pump 6 stops feeding oil to the hydraulic brake calipers 22 in the four disc brakes 2 through the four oil pipes 4, the hydraulic brake calipers 22 in the four disc brakes 2 release the brake disc 21, the brake disc 21 CAN continue to rotate along with the wheel hub motor 3, the purpose of canceling braking is achieved, the wire control brake system and the CAN bus controller 1 depend on electric signal transmission, and the hydraulic system is driven by the electric signal to form braking force, the brake effect is not needed, the braking effect is sensitive, the braking speed is high, the automation degree is high, the mechanical brake system is directly connected with the disc brake system is easy to install, the mechanical brake system is high in the degree of reliability, and the mechanical brake system is easy to install, and the mechanical system is easy to install is reduced.
The protection device utilizes the cover body 51 to resist sand and dust for the CAN bus controller 1 and the four disc brakes 2 in the wheel rotation process, effectively avoids the problems that sand and dust collide or enter the CAN bus controller 1 and the four disc brakes 2 to damage the CAN bus controller 1 and the four disc brakes 2, ensures that the service life of the whole brake-by-wire system is longer, simultaneously, in the braking or driving process, air CAN enter the cover body 51 from one side of the heat dissipation window 54 and be discharged from the other side of the heat dissipation window 54 to the cover body 51 due to inertia, takes away heat in the cover body 51 in the one-in-one-out process, and CAN drive the impeller 56 to rotate at a high speed in the one-in-out process, the impeller 56 further increases the air circulation speed in the cover body 51 in the rotation process, so that the heat dissipation effect of the cover body 51 is better, and the problem that the CAN bus controller 1 and the disc brakes 2 are damaged due to high temperature is effectively avoided, thereby effectively prolonging the service life of the system.
Claims (4)
1. Intelligent trolley brake-by-wire system, its characterized in that: the intelligent vehicle brake system comprises a CAN bus controller (1) and a brake-by-wire system connected with the CAN bus controller (1), wherein the brake-by-wire system comprises a bus oil pump (6) and four disc brakes (2) which are respectively arranged on the inner sides of four wheels of an intelligent vehicle, each disc brake (2) comprises a brake disc (21) and a hydraulic brake caliper (22), the brake discs (21) are synchronously connected with an output shaft of a hub motor (3), the hydraulic brake calipers (22) are fixedly connected with a vehicle body, the bus oil pump (6) is respectively connected with the hydraulic brake calipers (22) in the four disc brakes (2) through four oil pipes (4), and the CAN bus controller (1) is connected with the bus oil pump (6) through a CAN bus;
the novel intelligent automobile is characterized in that protection devices (5) used for resisting dust are arranged outside the CAN bus controller (1) and the four disc brakes (2), the protection devices (5) comprise cover bodies (51) fixedly connected with an automobile body respectively, the cover bodies (51) are rectangular structures with one sides being open, folded edges (52) used for being connected with the automobile body are arranged at the edges of the bottom openings of the cover bodies (51), bolt holes (59) used for being connected with the automobile body are formed in the folded edges (52), and through holes (53) used for being connected with an oil pipe (4) and a bus oil pump (6) are formed in the cover bodies (51) outside the four disc brakes (2) respectively.
2. The intelligent car brake-by-wire system of claim 1, wherein: two sides of the cover body (51) opposite to the running direction of the car body are respectively provided with a radiating window (54), and impellers (56) are arranged in the radiating windows (54).
3. The intelligent car brake-by-wire system of claim 2, wherein: the side plates of the cover body (51) parallel to the vehicle body traveling direction are respectively provided with a plurality of through holes (57) parallel to the vehicle body traveling direction, and a plurality of radiating holes (58) respectively communicated with the through holes (57) are uniformly distributed on the inner walls of the side plates of the cover body (51) parallel to the vehicle body traveling direction.
4. The intelligent car brake-by-wire system of claim 3, wherein: a dust screen (55) covering the radiating window (54) and the through hole (57) is respectively arranged on two sides of the cover body (51) opposite to the running direction of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323302182.1U CN221737795U (en) | 2023-12-05 | 2023-12-05 | Intelligent trolley line control braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323302182.1U CN221737795U (en) | 2023-12-05 | 2023-12-05 | Intelligent trolley line control braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221737795U true CN221737795U (en) | 2024-09-20 |
Family
ID=92740472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323302182.1U Active CN221737795U (en) | 2023-12-05 | 2023-12-05 | Intelligent trolley line control braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221737795U (en) |
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2023
- 2023-12-05 CN CN202323302182.1U patent/CN221737795U/en active Active
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