CN216332556U - Braking system, vehicle of riding instead of walk and vehicle fortune dimension system - Google Patents
Braking system, vehicle of riding instead of walk and vehicle fortune dimension system Download PDFInfo
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- CN216332556U CN216332556U CN202122518517.8U CN202122518517U CN216332556U CN 216332556 U CN216332556 U CN 216332556U CN 202122518517 U CN202122518517 U CN 202122518517U CN 216332556 U CN216332556 U CN 216332556U
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Abstract
The utility model discloses a brake system, a vehicle for riding instead of walk and a vehicle operation and maintenance system, wherein the brake system comprises: a brake handle and a brake cable; the Hall sensor is arranged on the brake handle and used for detecting a brake operation signal of the brake handle during braking; the force sensor is used for detecting the stress of the brake cable and outputting a brake cable stress detection signal; and the controller is connected with the force sensor and the Hall sensor and is used for judging the state of the brake cable according to the stress detection signal and the brake operation signal. The brake system provided by the embodiment of the utility model can effectively detect the brake function and improve the riding safety.
Description
Technical Field
The utility model relates to the technical field of vehicles for riding instead of walk, in particular to a brake system, a vehicle for riding instead of walk and a vehicle operation and maintenance system.
Background
In the short traffic industry, vehicles for riding instead of walk, shared vehicles and the like are commonly applied, brake cables are arranged in the vehicles for riding instead of walk and the shared vehicles, and brake force is transmitted through the brake cables. If the daily detection of the brake cable is lacked, the vehicle with the problem of the brake cable cannot be found in time, and the user may have an accident in the riding process.
In the related art, the vehicle instead of walk can not detect the brake function in the use process, and has potential safety hazard of riding. At present, the brake cable of the shared vehicle is detected mainly by manually disassembling and assembling the vehicles one by a maintainer. Therefore, the brake cable detection of the shared vehicle is heavy in task, labor-consuming and low in efficiency.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one of the purposes of the utility model is to provide a brake system which can effectively detect the brake function and improve the riding safety.
The second objective of the present invention is to provide a vehicle for transportation.
The utility model also aims to provide a vehicle operation and maintenance system.
In order to achieve the above object, a braking system according to an embodiment of a first aspect of the present invention includes: a brake handle and a brake cable; the Hall sensor is arranged on the brake handle and used for detecting a brake operation signal of the brake handle during braking; the force sensor is used for detecting the stress of the brake cable and outputting a brake cable stress detection signal; and the controller is connected with the force sensor and the Hall sensor and is used for judging the state of the brake cable according to the stress detection signal and the brake operation signal.
According to the brake system provided by the embodiment of the utility model, the Hall sensor is arranged in the brake handle, and the force sensor is connected with the brake cable, when a user pinches the operating part of the brake handle to brake, the brake handle tensions the brake cable, the Hall sensor can directly detect the brake operating signal of the brake handle, the force sensor can directly detect the stress of the brake cable and output the stress detection signal of the brake cable, and the controller can further identify the state of the brake cable according to the brake operating signal of the brake handle and the stress detection signal of the brake cable, so that the real-time automatic detection of the brake function is realized, the time and labor are saved, the efficiency is high, and the riding safety is favorably improved.
In some embodiments of the utility model, the force sensor comprises: the first end of the elastic body is connected with the brake cable, the second end of the elastic body is connected with the brake handle, and the elastic body deforms according to the tightness of the brake cable; the strain gauge is arranged on the elastic body and used for generating micro strain based on the deformation of the elastic body and generating the brake cable stress detection signal.
In some embodiments of the utility model, the brake cable comprises a plurality of brake line segments connected by a connector; the force sensor is at least one, and at least one force sensor is arranged on the connecting piece.
In some embodiments of the present invention, a first end of the brake cable is connected to the brake handle, a second end of the brake cable is connected to the brake actuating member, and the force sensor is disposed at a connection position of the first end of the brake cable and the brake handle, or the force sensor is disposed at a connection position of the second end of the brake cable and the brake actuating member.
In some embodiments of the utility model, the signal amplification unit is connected with the force sensor and the hall sensor, and is configured to collect the brake cable stress detection signal and the brake operation signal and amplify the signals; and the control unit is connected with the signal amplification unit and is used for judging the state of the brake cable according to the amplified brake cable stress detection signal and the amplified brake operation signal.
In some embodiments of the present invention, the braking system further includes: and the reminding device is connected with the controller and is used for reminding when the abnormal state of the brake cable is determined.
In some embodiments of the utility model, the brake lever comprises: a handle including an operating portion, a wire portion and a first fixing portion, the operating portion and the wire portion being connected to each other, the wire portion and the first fixing portion being connected to each other; the brake cable comprises a body and a brake cable, wherein the body comprises a shell, the shell is enclosed to form an accommodating groove, a mounting hole and a wire inserting hole are defined in the shell, a second fixing part is arranged on the shell at the mounting hole, and a first end of the brake cable penetrates through the wire inserting hole to enter the accommodating groove; the fixing piece is used for connecting the first fixing portion and the second fixing portion, so that the handle can rotate around the fixing piece, the connecting portion penetrates through the mounting hole to be connected with the first end of the brake cable, the connecting portion is located in the accommodating groove when the operating portion is not stressed, and the connecting portion is pulled outwards through the mounting hole to tension the brake cable when the operating portion is stressed.
In some embodiments of the present invention, the body further includes a cover body covering the housing, the cover body is detachably connected to the housing, and the hall sensor is disposed in the accommodating groove.
In some embodiments of the present invention, the first fixing portion is provided with a first fixing hole, and the second fixing portion is provided with a second fixing hole; the fixing member includes a bolt and a nut, the bolt passing through the second fixing hole and the first fixing hole and cooperating with the nut to make the handle rotatable about the bolt; the fixing piece further comprises a resetting piece, the resetting piece is sleeved on the bolt and used for enabling the handle to reset after the stress of the operation portion disappears.
In order to achieve the above object, an embodiment of a second aspect of the present invention provides a scooter, including: a vehicle body; the brake system of any preceding claim, the brake system being provided on the vehicle body.
According to the vehicle instead of walk provided by the embodiment of the utility model, the brake system of any one of the above embodiments is adopted, the force sensor capable of detecting the stress of the brake cable and the Hall sensor capable of detecting the brake operation signal of the brake handle are arranged in the brake system, and the controller can judge the state of the brake cable according to the stress detection signal and the brake operation signal, so that the detection of the brake function is realized, and the riding safety is improved.
In order to achieve the above object, an embodiment of the third aspect of the present invention further provides a vehicle operation and maintenance system, including: a plurality of embodiments of the walk-substituting vehicle; and the operation and maintenance terminal is communicated with the vehicle for riding instead of walk so as to receive the brake cable abnormity reminding information of the vehicle for riding instead of walk.
According to the vehicle operation and maintenance system provided by the embodiment of the utility model, when the brake cable of the scooter breaks down, the scooter can directly upload the abnormal reminding information to the operation and maintenance terminal, so that the operation and maintenance personnel can be remotely reminded, the detection efficiency of the scooter is improved, the point-to-point maintenance can be realized for the motorcade of the scooter with large volume, and the operation and maintenance cost is reduced.
In some embodiments of the present invention, the co-vehicle operation and maintenance system further comprises: and the cloud server performs data interaction with the transportation vehicle and the operation and maintenance terminal respectively so as to send the abnormal reminding information of the brake cable of the transportation vehicle to the operation and maintenance terminal.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a braking system according to one embodiment of the present invention;
FIG. 2 is a schematic view of a brake lever according to one embodiment of the present invention;
FIG. 3 is a front view of a force sensor according to one embodiment of the present invention;
FIG. 4 is a top view of a force sensor according to one embodiment of the present invention;
FIG. 5 is a schematic view of a brake lever according to another embodiment of the present invention;
FIG. 6 is a block diagram of a braking system according to another embodiment of the present invention;
FIG. 7 is a flow chart of detecting a brake cable condition according to one embodiment of the present invention;
FIG. 8 is a block diagram of a braking system according to yet another embodiment of the present invention;
FIG. 9 is a schematic view of a brake lever according to yet another embodiment of the present invention;
FIG. 10 is a schematic view of a brake lever according to yet another embodiment of the present invention;
FIG. 11 is a schematic view of a brake lever according to yet another embodiment of the present invention;
FIG. 12 is a block diagram of a scooter according to one embodiment of the present invention;
FIG. 13 is a block diagram of a vehicle operation and maintenance system according to one embodiment of the present invention;
FIG. 14 is a block diagram of a vehicle operation and maintenance system according to another embodiment of the present invention.
Reference numerals:
a vehicle operation and maintenance system 1000;
the transportation vehicle 100, the operation and maintenance terminal 200 and the cloud server 300;
a brake system 10, a vehicle body 20;
the brake device comprises a brake handle 1, a Hall sensor 2, a force sensor 3, a controller 4 and a reminding device 5;
the brake cable comprises a body 11, a handle 12, a brake cable 21, a fixing piece 13, an elastic body 31, a strain gauge 32, a signal amplification unit 41 and a control unit 42;
a case 111 and a cover 112;
the brake device comprises a first brake line segment a1, a brake cable rubber a2, a connecting piece N, an accommodating groove A, an installing hole B, a wire inserting hole C, a connecting buckle P1, a pin P2, a bolt C1, a nut C2, a resetting piece M, an installing groove E and a limiting groove U.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
A braking system according to an embodiment of the present invention will be described with reference to fig. 1 to 11.
For driving safety, ride-on vehicles such as bicycles and scooters are equipped with a braking system for braking the vehicle.
Fig. 1 is a block diagram of a braking system according to an embodiment of the present invention, and as shown in fig. 1, a braking system 10 according to an embodiment of the present invention includes a brake lever 1, a brake cable 21, a hall sensor 2, a force sensor 3, and a controller 4.
The brake lever 1 is used for a rider to perform a braking operation during braking.
One end of the brake cable 21 can extend into the brake handle 1 and is connected with the brake handle 1, and in some embodiments, the brake cable 21 can be made of steel wire, and has a rigid structure, so that the structure is strong and not easy to damage and deform. For the sake of beauty and safety, the brake cable 21 can be wrapped with a brake cable sheath which is a plastic part and can protect the brake cable 21. When a user squeezes the brake handle 1, the brake cable 21 is tensioned to drive the brake clamp, the brake disc, the brake pad and the like at the wheel to act, so as to realize braking.
The hall sensor 2 is disposed on the brake lever 1, and is configured to detect a brake operation signal of the brake lever 1 during braking, such as an opening angle signal or an opening displacement signal or a distance signal of the brake lever 1. The hall sensor 2 can be arranged inside the brake handle 1, the hall sensor 2 can comprise two magnets, one magnet is fixed in position, and the other magnet can move along with the brake handle 1. According to the Hall effect, the voltage at the two ends of the Hall sensor 2 can change along with the pressing angle of the handle, namely, in the braking process, a user pinches the brake handle 1, the brake handle 1 acts, the two magnets move mutually, the magnetic field intensity between the two magnets changes, then the voltage at the two ends of the Hall sensor 2 changes, and the Hall sensor 2 can detect the action signal of the brake handle 1, namely, the braking operation signal of the brake handle 1. Further, the corresponding pulling force value of the brake cable 21 can be obtained in advance according to the brake operation signal of the brake handle 1 and stored in the controller 4 of the braking system 10 to be used as a reference value for judging whether the braking function is valid.
The force sensor 3 can be a pressure sensor or a tension sensor, and the force sensor 3 can be connected with the brake cable 21 and used for detecting the stress of the brake cable 21 and outputting a stress detection signal. The controller 4 is connected with the force sensor 3 and used for judging the state of the brake cable 21 according to the stress detection signal. It is understood that the position of the force sensor 3 can be any connecting position of the brake cable 21, and it is sufficient to detect that the brake cable 21 is stressed.
The controller 4 is connected with the force sensor 3 and the hall sensor 2 and is used for judging the state of the brake cable 21 according to the stress detection signal and the brake operation signal.
Specifically, when a brake is needed, a user pinches the brake handle 1, the brake handle 1 acts and drives the brake cable 21 to generate a pulling force, the force sensor 3 acquires a brake cable stress detection signal according to the tightness of the brake cable 21 and sends the brake cable stress detection signal to the controller 4, and the controller 4 determines the brake cable 21 to generate the pulling force according to the acquired brake cable stress detection signal, and determines the actual generated pulling force of the brake cable 21 and the tightness state of the brake cable 21 and the like according to the brake cable stress detection signal. And when the brake handle 1 acts, the hall sensor 2 can detect the brake operation signal of the brake handle 1 and send the brake operation signal to the controller 4, and the controller 4 can acquire the preset tension value of the brake cable according to the brake operation signal of the brake handle 1 detected by the hall sensor 2.
Further, the controller 4 may also compare the actually generated pulling force of the brake cable obtained through the force sensor 3 with a preset pulling force value of the brake cable obtained through the hall sensor 2 to determine the state of the brake cable. For example, when it is determined that the tensile value actually generated by the brake cable is smaller than the preset tensile value of the brake cable, it is determined that the braking function is invalid, and for example, when it is determined that the tensile value actually generated by the brake cable is not smaller than the preset tensile value of the brake cable, it is determined that the braking function is normal. The specific judgment condition can be set according to the requirement or under the laboratory condition so as to realize the detection of the brake function and improve the detection accuracy.
According to the brake system 10 provided by the embodiment of the utility model, the Hall sensor 2 is arranged in the brake handle 1, and the force sensor 3 is connected with the brake cable 21, when a user pinches the operating part of the brake handle 1 to brake, the brake handle 1 tensions the brake cable 21, the Hall sensor 2 can directly detect the brake operating signal of the brake handle 1, the force sensor 3 can directly detect the stress of the brake cable 21 and output the brake cable stress detection signal, and the controller 4 further identifies the state of the brake cable 21 according to the brake operating signal of the brake handle 1 and the brake cable stress detection signal, so that the real-time automatic detection of the brake function is realized, the time and labor are saved, the efficiency is high, and the riding safety can be improved.
In some embodiments of the present invention, a first end of the brake cable 21 is connected to the brake handle 1, and a second end of the brake cable 21 is connected to a brake actuating member, wherein the brake actuating member may include a brake caliper, a brake disc, a brake pad, and the like, which are disposed at a wheel position. The force sensor 3 may be arranged at the connection of the brake cable 21 and the brake lever 1, for example between the brake cable 21 and the brake lever 1.
Fig. 2 is a schematic view of a brake lever according to an embodiment of the present invention. One end of the force sensor 3 is connected with the brake handle 1, and the other end of the force sensor 3 is connected with the brake cable 21 and used for detecting the stress of the brake cable 21. When a user pinches the brake handle 1, the brake handle 1 drives the brake cable 21 to be tightened, the force sensor 3 arranged at the joint of the brake cable 21 and the brake handle 1 can detect the stress condition of the whole brake cable 21 and output a stress detection signal to the controller 4, and then the controller 4 can determine the state of the brake cable 21 according to the stress detection signal, so that the detection of the brake function is realized, and the driving safety is improved.
More specifically, the brake handle 1 is provided with a mounting groove E, a hole is formed in the mounting groove E, one end of the force sensor 3 is inserted into the mounting groove E and fixed by a fastener, and the other end of the force sensor 3 is connected with the brake cable 21. When a user pinches the brake handle 1, the handle 12 drives the power sensor 3 to move so as to tension the brake cable for braking, and at the moment, the power sensor 3 can directly detect the stress of the brake cable, so that the real-time detection of the stress of the brake cable 21 is realized.
A force sensor 3 according to an embodiment of the present invention will be described with reference to fig. 3 and 4, fig. 3 is a front view of the force sensor according to an embodiment of the present invention, and fig. 4 is a plan view of the force sensor according to an embodiment of the present invention.
In some embodiments of the utility model, the force sensor 3 comprises an elastomer 31 and a strain gauge 32. Wherein, the first end and the brake line 21 of elastomer 31 are connected, and the second end and the brake handle 1 of elastomer 31 are connected, and elastomer 31 can produce the deformation according to the elasticity of brake line 21.
Specifically, the first end of the elastic body 31 defines a hole site and a groove, and one end of the brake cable 21 can be inserted through the groove and placed in the hole site, and the brake cable 21 cannot be separated from the elastic body 31. The second end of the elastic body 31 is also provided with a hole, the second end of the elastic body 31 is inserted into a corresponding mounting groove E in the brake handle 1, the fastening member passes through the hole of the second end of the elastic body 31 and the hole at the position of the mounting groove E to connect the elastic body 31 with the brake handle 1, and the elastic body 31 can rotate by taking the fastening member as a shaft. When a user pinches the brake handle 1, the brake handle 1 drives the elastic body 31 to act, the elastic body 31 rotates by taking the fastening piece as an axis and pulls the brake cable 21 to move, at the moment, the elastic body 31 deforms by the tensile force, the rotating angles of the elastic body 31 are different, the tensile force generated by the brake cable 21 is different, or under the condition that the rotating angles of the elastic body 31 are the same, the tensile force generated by the brake cable 21 is different in different states, and further the deformation amount of the elastic body 31 is different. The elastic body 31 may be made of a rigid material, and the deformation generated under the action of the tensile force is a micro deformation.
The strain gauge 32 is arranged on the elastic body 31 and used for generating micro strain based on the deformation of the elastic body 31 and generating a brake cable stress detection signal. The strain gauge 32 can be attached to the elastic body 31 and fixed by silicone rubber. When the elastic body 31 is deformed by a tensile force, the strain gauge 32 generates a micro-strain according to the deformation of the elastic body 31, and the resistance value inside the strain gauge 32 changes to obtain a brake cable stress detection signal. The strain gauge 31 may be a metal sheet, and many metals have a property that their electric resistance changes when they mechanically elongate or contract. When the strain gauge 31 is deformed, the metal foil in the strain gauge 31 is elongated with strain or the strain gauge is shortened, and the resistance value thereof is changed accordingly. When the resistance value of the strain gauge 31 changes, the voltage across the strain gauge 31 changes. Therefore, the voltage across the strain gauge 31 changes in relation to the tension of the brake cable 21, and the voltage signal across the strain gauge 31 can be used as the tension detection signal.
In other embodiments of the utility model, the force sensor 3 may also comprise only a strain gauge (not shown in the figures), which is arranged on the brake cable 21. After a user presses the brake handle 1, the brake cable 21 can stretch and contract to generate tensile force, and the strain gauge 21 generates mechanical deformation under the action of external force, so that the resistance value of the strain gauge changes correspondingly, the strain gauge can be attached to the brake cable 21, when the brake cable 21 stretches and contracts, the strain gauge stretches and contracts along with the strain of the brake cable 21, namely, the strain gauge can generate mechanical deformation under the action of the tensile force of the brake cable 21, and then the stress detection signal of the brake cable is obtained.
In the embodiment, the force sensors 3 may be disposed in the middle of the brake cable 21, or the force sensors may be disposed at both end portions of the brake cable 21, so that the force applied to the brake cable 21 can be detected.
For example, in some embodiments of the present invention, the brake cable 21 includes a plurality of brake line segments that are connected by a connector N. The force sensor 3 can be arranged in the middle of the brake cable 21 by arranging the force sensor 3 on the connecting piece N.
Specifically, the brake cable 21 may be a complete metal cable, and the brake cable 21 may also include a plurality of brake cable segments, the plurality of brake cable segments are connected by a connecting member N to form a complete brake cable 21, a free end of a first brake cable segment is connected to the brake handle 1, and a free end of a last brake cable segment is connected to the brake actuating member disposed at the wheel. The free end can be understood as that after a plurality of brake line segments are connected by the connecting piece N to form a complete brake line 21, two ends of other brake lines 21 are not connected.
The plurality of brake segments may be 2, 3, 4 or 5 or more, for example, the brake cable 21 is divided into two brake segments, as shown in fig. 5, which is a schematic diagram of a brake handle according to another embodiment of the present invention, wherein the plurality of brake segments are two brake segments, for example, the two brake segments respectively include a first brake segment a1 and a second brake segment, one end of the first brake segment a1 is connected to one end of the second brake segment through a connecting member N, the other end of the first brake segment a1 is connected to the brake handle 1, the second brake segment is not shown in fig. 5, the other end of the second brake segment is connected to a brake actuator, and the brake actuator is disposed on the vehicle body 20.
In some embodiments of the present invention, the force sensor 3 is at least one, and at least one force sensor 3 is disposed on the connecting member N, for example, the force sensor 3 and the connecting member N shown in fig. 3 are a module, that is, the force sensor 3 may be disposed in the middle of the brake cable 21, and when the brake cable 21 is tightened, the force sensor 3 may sense a force condition of the brake cable 21 and output a force detection signal to the controller 4 to perform the detection of the braking function. The number of the force sensors 3 may be 1, 2, 3, or 4, for example, the force sensor 3 is disposed at each connecting member of a plurality of brake line segments, or the force sensor 3 is disposed at a part of the connecting members N connected to the plurality of brake line segments, which is not particularly limited.
For example, the plurality of brake segments at least include two brake segments, the two brake segments are connected by a connecting member N, a force sensor 3 is disposed on the connecting member N, and when the brake cable 21 is stressed, the force sensor 3 obtains a stress signal of the brake cable 21. For another example, when the plurality of brake line segments includes more than two brake line segments, each two adjacent brake line segments are connected by one connecting member N. And force sensors 3 may be provided on some or all of the connecting members N to detect the force applied to the brake cable 21. The number of the brake line segments and the number of the force sensors 3 can be set and adjusted according to needs, and are not limited herein.
In some embodiments of the present invention, as shown in fig. 5, taking the example that the brake cable 21 includes a first brake cable segment a1 and a second brake cable segment (not shown in the drawings, disposed on the vehicle body 20 and connected to the brake actuator), and the connecting member N is disposed in the cavity of the brake handle 1, the first end of the first brake cable segment a1 passes through the cable-passing hole C and the first end of the connecting member, the second end of the first brake cable segment a1 is connected to the second brake cable segment through the connecting member N, and the connecting member N can be located in the accommodating groove a. The brake cable 21 may be covered with a brake cable skin a2 to protect the brake cable 21.
Specifically, the force sensor 3 may be provided on the connector N, and for example, a strain gauge may be attached to the connector N as the force sensor 3. And a limiting groove U can be arranged in the accommodating groove A to be used for arranging the connecting piece N, grooves suitable for penetrating the brake cable 21 are arranged at two ends of the limiting groove U, and the width of the limiting groove U is far larger than that of the grooves. When a user pinches the operating end of the handle 12 to tighten the brake cable 21, the force sensor 3 arranged on the connecting piece N generates pressure or tension, and then outputs a stress detection signal and sends the signal to the controller 4, thereby realizing the detection of the brake function.
According to the brake system 10 of the embodiment of the utility model, the brake cable 21 is divided into two or more sections, the force sensor 3 is added at the position where the brake cable 21 is fixedly connected, that is, the force sensor 3 is placed at the middle part of the brake cable 21, and if an external force is applied to the force sensor 3 in the braking process, the force sensor 3 can detect that the brake cable 21 is stressed, so that the detection of the brake cable 21 is realized.
In addition, as for the way of arranging the force sensors 3 at both end portions of the brake cable 21, in some embodiments, a first end of the brake cable 21 may be connected with the brake lever 1 and a second end of the brake cable 21 may be connected with the brake actuating member, wherein the force sensors 3 may also be arranged at the connection of the brake cable 21 and the brake lever 1. Specifically, the brake handle 1 may further be provided with a spring mechanism, etc., the force sensor 3 is placed at a position where the brake cable 21 is combined with the brake handle 1, and during braking, the spring mechanism in the brake handle 1 applies pressure to the force sensor 3, so as to identify the braking state through feedback of the force sensor 3.
In other embodiments, the force sensor 3 may also be arranged at the connection of the brake cable 21 and the brake actuator. In the embodiment, the brake executing component may include a brake clamp, a brake disc, a brake pad, and the like, and the brake cable 21 is tensioned to drive the brake executing component to act on the wheel to realize braking.
Specifically, when the brake cable 21 is tightened, the brake executing member is driven to act, the force sensor 3 arranged at the joint of the brake cable 21 and the brake executing member can detect the stress condition of the brake cable 21 and output the stress detection signal of the brake cable 21 to the controller 4, and then the controller 4 can determine the state of the brake cable 21 according to the stress detection signal, so that the detection of the brake function is realized, and the driving safety is improved.
In some embodiments of the present invention, as shown in fig. 6, which is a block diagram of a braking system according to another embodiment of the present invention, the controller 4 includes a signal amplifying unit 41 and a control unit 42.
The signal amplifying unit 41 is connected with the force sensor 3 and the hall sensor 2, and is used for acquiring a brake cable stress detection signal and a brake operation signal and amplifying the signals. The force sensor 2 transmits the collected stress detection signal to the signal amplification unit 41 for amplification, and the angle sensor 3 transmits the detected brake operation signal of the brake handle 1 to the signal amplification unit 41 for amplification.
Taking the force sensor 2 as a strain gauge disposed on the brake cable 21 as an example, the signal amplifying unit 41 may be connected in parallel with the strain gauge disposed on the brake cable 21 to collect voltage signals at two ends of the strain gauge and amplify the obtained voltage signals.
The control Unit 42 is connected to the signal amplifying Unit 41, a module having a signal and data processing function, such as a single chip Microcomputer (MCU) or a Micro Controller Unit (MCU), may be disposed in the control Unit 42, and after the amplified signal is transmitted to the control Unit 42, the control Unit 42 is configured to determine the state of the brake cable according to the amplified brake cable stress detection signal and the amplified brake operation signal.
The amplified brake cable stress detection signal and the amplified brake operation signal are analog signals, and the control unit 42 may further convert the received analog signals into digital signals and process the received signals, so as to detect the brake cable stress.
Specifically, after the signal amplifying unit 41 sends the amplified signal to the control unit 42, the control unit 42 may compare the actually generated pulling force of the brake cable obtained by the force sensor 3 with the preset pulling force value of the brake cable obtained by the hall sensor 2 to determine the state of the brake cable. For example, when it is determined that the pulling force value actually generated by the brake cable is smaller than the preset pulling force value of the brake cable, it is determined that the brake function is invalid, and for example, when it is determined that the pulling force value actually generated by the brake cable is not smaller than the preset pulling force value of the brake cable, it is determined that the brake function is normal, so that the detection of the brake function is realized, and the detection accuracy is improved.
Further, the controller 4 may also pre-store a time threshold or a time threshold, and the time threshold or the time threshold may be set according to needs or according to test data. For example, within the time threshold, the user performs several actions of pressing down the brake lever 1 and releasing the brake lever 1, the controller 4 records the maximum value and the minimum value of the brake force value during each period of pressing down the brake lever 1 and releasing the brake lever 1, calculates the difference between the maximum value and the minimum value to obtain the brake force value difference, compares several brake force value differences with the brake force difference threshold, and determines that the brake cable 21 has a fault if all the brake force value differences exceed the range of the brake force difference threshold. Or, the controller 4 may also record the number of times that the user presses the brake lever 1, and obtain a braking force value difference value in each braking operation process, and determine that the brake cable 21 has a fault if the braking force value difference value exceeds the range of the braking force difference value threshold value and the occurrence number is greater than the number threshold value. Through calculating and comparing the difference value of the braking force values for multiple times, misjudgment can be prevented, and the accuracy of detecting the state of the brake cable 21 is improved.
In some embodiments of the present invention, as shown in fig. 7, a flowchart of detecting the state of the brake cable according to an embodiment of the present invention is shown, wherein the flowchart in fig. 7 is an example of a process of detecting the state of the brake cable 21 for the system 10 for detecting the state of the brake cable according to the above embodiment, and for reference, at least includes steps S101-S110, which are described as follows.
S101, start.
And S102, judging whether the user presses the brake handle or not, if so, executing the step S103, and if not, returning to execute the step S102.
And S103, updating the maximum value and the minimum value of the braking force value in real time.
And S104, judging whether the user releases the brake handle or not, if so, executing the step S105, and if not, returning to the step S103.
And S105, calculating the difference value between the maximum value and the minimum value of the braking force value.
And S106, judging whether the difference value is smaller than the set difference value threshold value, if the judgment result is yes, executing the step S107, and if the judgment result is no, returning to execute the step S110.
S107, the number of the fault data pieces is + 1.
S108 determines whether the number of failure data pieces is greater than the set number threshold, and if the determination result is yes, step S109 is executed, and if the determination result is no, step S106 is returned to.
And S109, displaying the fault by an instrument, giving an alarm by a buzzer, and prompting operation and maintenance personnel to maintain the brake cable.
And S110, clearing the number of the fault data pieces.
In some embodiments of the present invention, as shown in fig. 8, a block diagram of a braking system according to another embodiment of the present invention is shown, wherein the braking system 10 further includes a reminding device 5, and the reminding device 5 is connected to the controller 4 and is used for displaying fault information when it is determined that the brake cable 21 is abnormal.
Specifically, the reminding device 5 may include an instrument panel and an audible alarm such as a buzzer, the fault information may include characters, icons, fault codes, light flashing or sounds, and the like, when it is determined that the brake cable 21 is abnormal, the controller 4 may send an instruction to the instrument panel or the audible alarm device, and the instrument panel and/or the audible alarm device gives an alarm in response to the instruction to remind a user that the brake cable 21 is abnormal, so as to timely inform an operation and maintenance person to check the brake cable 21 in time. Through setting up reminding device 5, can directly remind when brake cable 21 is unusual to the personnel this brake cable 21 trouble around the suggestion needs to overhaul.
Further, the reminding device 5 may further include a communication module, and the communication module is connected to the data processing device 3 and is configured to send operation and maintenance reminding information when it is determined that the brake cable 21 is abnormal. The communication module may implement wireless communication between the controller 4 and the operation and maintenance terminal 200. For example, the controller 4 may send an instruction or a signal to the communication module, and the communication module sends operation and maintenance reminding information to the operation and maintenance terminal 200, so that the operation and maintenance personnel can determine the target vehicle and the location where the target vehicle is located according to the operation and maintenance reminding information, and the like, thereby maintaining the brake cable 21 in time, avoiding danger in the riding process of the user, and improving the safety of the vehicle.
The brake lever 1 according to the embodiment of the present invention will be described with reference to fig. 2, 5, 9, 10 and 11. Wherein fig. 9 is a schematic view of a brake lever according to yet another embodiment of the present invention, fig. 10 is a schematic view of a brake lever according to yet another embodiment of the present invention, and fig. 11 is a schematic view of a brake lever according to yet another embodiment of the present invention.
As shown in fig. 9 and 10, the brake lever 1 includes a body 11, a lever 12, and a fixing member 13. The handle 12 includes a connecting portion, an operating portion, and a first fixing portion, the connecting portion and the operating portion being connected to each other, and the connecting portion and the first fixing portion being connected to each other.
Specifically, as shown in fig. 5, the connecting portion may be provided with a connecting buckle P1 and a pin P2 for fixing the first end of the brake cable 21 to the connecting portion of the handle 12, wherein the connecting buckle P1 and the pin P2 are metal members, and the pin P2 is used for fixing the connecting buckle P2 to the handle 12 to form the connecting portion, and a connecting member capable of being adaptively connected with the connecting buckle P1 may be further provided at the first end of the brake cable 21. Alternatively, as shown in fig. 2, a mounting groove E is provided at a position of the handle 12 for mounting the force sensor 3, a hole is provided at the mounting groove E, one end of the force sensor 3 is inserted into the mounting groove E and fixed by a fastener to form a connecting portion, and the brake cable 21 is used for connecting with the other end of the force sensor 3.
Taking the brake lever 1 shown in fig. 5 and 11 as an example, the body 11 includes a housing 111, the housing 111 encloses a receiving groove a, the housing 111 defines a mounting hole B and a wire insertion hole C, specifically, a side wall of the housing 111 defines a mounting hole B and a wire insertion hole C for the brake wire 21 to enter the housing 111.
In other embodiments, as shown in fig. 2 and 5, the body 11 further includes a cover 112 covering the housing 111, wherein the housing 111 may be made of metal, which has high structural strength, long service life and is not easy to damage, and the cover 112 may be made of plastic, which is convenient for disassembly and replacement.
The hall sensor 2, the connecting member N, the force sensor 3, and other devices may be disposed in the housing 111, the cover 112 may be detachably covered on the housing 111, and when the internal components of the main body 11 need to be detected, or when the components in the main body 11, such as the hall sensor 2 or the force sensor 3, have a fault, the cover 112 may be opened for performing operations such as maintenance and internal cleaning. The cover 112 can be fixed by a fixing member such as a screw, the cover 112 is covered on the housing 111 and is fastened with the body 11 to form an accommodating groove a, and a mounting hole B and a wire insertion hole C are formed on a side surface of the accommodating groove a.
A second fixing part is arranged on the shell 111 at the mounting hole B, and a first end of the brake cable 21 penetrates through the wire inserting hole C and enters the accommodating groove A. The connecting wire part penetrates through the mounting hole B to be connected with the first end of the brake cable 21, the connecting wire part is arranged in the accommodating groove A when the operating part is not stressed, the connecting wire part is pulled outwards through the mounting hole B to tension the brake cable 21 when the operating part is stressed, the body 11 and the handle 12 can be metal pieces, and the brake cable is not easy to damage and long in service life.
The fixing member 13 is used for connecting the first fixing portion and the second fixing portion. Specifically, as shown in fig. 5, the fixing member 13 may be a pin, the second fixing portion is provided with a limiting hole, the first fixing portion is sleeved in the limiting hole of the second fixing portion, the first fixing portion is provided with a first fixing hole, and the second fixing portion is provided with a second fixing hole. Alternatively, as shown in fig. 2, the fixing element 13 includes a bolt C1 and a nut C2, and in the installation process, after two hole positions of the second fixing hole and the first fixing hole are aligned, the bolt C1 penetrates through the first fixing hole and the second fixing hole and is matched with the nut C2 to fix the handle 12, and the handle 12 can rotate with the bolt C1 as an axis to receive and release the brake cable 21. When the user pinches the operating end of the handle 12, the operating end of the handle 12 moves in a direction approaching the handle, the first fixing portion of the handle 12 rotates about the fixing member 13, and the first end of the handle 12 rotates in a direction away from the mounting hole B. At the moment, in the accommodating groove A, the connecting line part is pulled out from the mounting hole B under the stress and pulls the brake cable 21 to move, and then the brake cable 21 drives the brake executing part to act, so that the brake is realized.
When a user pinches the operating part of the handle 12, the handle 12 rotates around the fixing piece 13 as an axis and pulls the brake cable 21 to move, and when the brake cable 21 is pulled, a pulling force is generated and drives the brake actuating piece to execute a braking action. According to different rotation angles of the handle 12 and different stresses of the brake cable 21, the correspondingly generated pulling forces are different, the force sensor 3 detects the stress of the brake cable 21 and outputs a stress detection signal, and the controller 4 can judge the state of the brake cable 21 according to the stress detection signal, so that the interval of the brake function is realized, and the driving safety is improved.
As shown in fig. 5, the fixing element 13 further includes a resetting element M, and the resetting element M is sleeved on the bolt C1 and is used for resetting the brake handle 1 after the stress of the operating part disappears. Wherein, the piece M that resets is the torsional spring. Specifically, when the user pinches the handle 2, the handle 12 is rotated about the fixed member 13, and at this time, the torsion spring is elastically deformed according to the rotation angle of the operation portion and generates an elastic force. When the user loosens handle 2, the atress of operating portion disappears, and the torsional spring is the power of drive connecting portion motion owing to take place the elasticity conversion that elastic deformation produced for the second end of connecting portion rotates to the first open-ended direction that is close to, and gets back to original position, thereby makes handle 2 reset, guarantees that the user at every turn pinches and loosens handle 2 after, handle 2 homoenergetic resumes original position.
Some embodiments of the present invention further provide a scooter, as shown in fig. 12, which is a block diagram of the scooter according to an embodiment of the present invention, wherein the scooter 100 includes a body 20 and the brake system 10 of any one of the above embodiments, and the brake system 10 is disposed on the body 20. The ride vehicle 100 may include a bicycle, such as an electric vehicle, a scooter, or the like.
In the embodiment, the braking system 10 is arranged on the vehicle body 20, for example, on the brake handle 1, the brake actuating member is arranged on the vehicle body 20, the brake cable 21 is used for connecting the brake handle 1 and the brake actuating member, the force sensor 3, for example, a pressure sensor or a tension sensor, is arranged on the brake cable 21, and the hall sensor 2 is also arranged. When braking is carried out, the force sensor 3 senses the stress condition of the brake cable and outputs a stress detection signal to the controller 4, the Hall sensor 2 detects the brake operation signal of the brake handle 1 during braking and outputs the brake operation signal of the brake handle 1 to the controller 4, and the controller 4 judges the state of the brake cable 21 according to the stress detection signal and the brake operation signal of the brake handle 1, so that the detection of the brake function of the scooter 100 is realized, and the safety is improved.
In some embodiments, the ride vehicle 100 may further comprise a shared vehicle, wherein the shared vehicle comprises at least one of a shared scooter, a shared balance bike, and a shared bicycle. For example, for a fleet with a large number of shared vehicles such as a shared scooter, a shared balance car, and a shared single car, the braking system 10 for detecting the state of the brake cable can be applied to a plurality of shared vehicles in the fleet, and the state of the brake cable 21 of each shared vehicle in the fleet does not need to be checked one by one, so that the detection efficiency of the brake cable 21 can be improved, point-to-point maintenance can be realized, and the operation and maintenance cost can be reduced.
According to the walk-substituting vehicle 100 provided by the embodiment of the utility model, the brake system 10 of any one of the above embodiments is adopted, the force sensor 3 capable of detecting the stress of the brake cable 21 and the Hall sensor 2 capable of detecting the brake operation signal of the brake handle 1 are arranged in the brake system 10, and the controller 4 can judge the state of the brake cable 21 according to the stress detection signal and the brake operation signal, so that the detection of the brake function is realized, and the riding safety is improved.
In some embodiments of the present invention, a vehicle operation and maintenance system 1000 is further provided, as shown in fig. 13, which is a block diagram of a vehicle operation and maintenance system for transportation according to an embodiment of the present invention, where the vehicle operation and maintenance system 1000 includes the vehicle 100 for transportation and the operation and maintenance terminal 200 of the above embodiment, and the operation and maintenance terminal 200 communicates with the vehicle 100 for transportation to receive the warning information of the abnormal brake cable of the vehicle 100 for transportation.
The operation and maintenance terminal 200 may include a mobile device, a computer, a background server, and the like, and when the brake cable 21 of the mobility vehicle 100 has a fault, the operation and maintenance terminal 200 may automatically report the abnormality prompting information, and the operation and maintenance terminal 2000 may be provided with a database, where the database includes data information of all the mobility vehicles 100. After receiving the abnormal reminding information, the operation and maintenance terminal 200 may mark the corresponding vehicle, and may also remotely notify the operation and maintenance personnel that the transportation vehicle 100 needs to be overhauled. The operation and maintenance terminal 200 may also store the state of the transportation vehicle 100, the abnormality reminding information, and the like in a database, so as to facilitate the subsequent researchers to research and improve the transportation vehicle 100 of the type.
According to the vehicle operation and maintenance system 1000 provided by the embodiment of the utility model, when the brake cable 21 of the scooter 100 has a fault, the scooter 100 can directly upload the abnormal reminding information to the operation and maintenance terminal 200, so that the operation and maintenance personnel can be remotely reminded, the detection efficiency of the scooter 100 is improved, the point-to-point maintenance can be realized for the motorcade of the scooter 100 with large volume, and the operation and maintenance cost is reduced.
In some embodiments of the present invention, as shown in fig. 14, the vehicle operation and maintenance system is a block diagram of a vehicle operation and maintenance system according to another embodiment of the present invention, where the vehicle operation and maintenance system 1000 further includes a cloud server 300, and the cloud server 300 performs data interaction with the transportation vehicle 100 and the operation and maintenance terminal 200 respectively, so as to send the brake cable abnormality reminding information of the transportation vehicle 100 to the operation and maintenance terminal 200.
Specifically, a plurality of vehicles 100 can independently perform data interaction with the cloud server 300, and the operation and maintenance terminal 200 can acquire the data of the vehicles 100 from the cloud server 300. For example, when the transportation vehicle 100 has a fault, the abnormal reminding information may be uploaded to the cloud server 300, the operation and maintenance terminal 200 obtains the abnormal reminding information from the cloud server 300, marks the abnormal reminding information corresponding to the transportation vehicle 100, and remotely reminds the operation and maintenance personnel of the need of repairing the transportation vehicle 100. For another example, when the system of the transportation vehicle 100 needs to be upgraded, the operation and maintenance terminal 200 performs data interaction with the plurality of transportation vehicles 100 through the cloud server 300, thereby completing the upgrade operation of the system of the transportation vehicle 100.
Furthermore, the electronic braking function of the scooter 100 can be expanded, and when the normal braking function is determined according to the vehicle stress signal of the brake cable 21, the controller 4 can drive the electronic braking system to automatically brake, so as to ensure the safety of the user.
Other constructions and operations of the mobility vehicle 100 and the vehicle operation and maintenance system 1000 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A braking system, comprising:
a brake handle and a brake cable;
the Hall sensor is arranged on the brake handle and used for detecting a brake operation signal of the brake handle during braking;
the force sensor is used for detecting the stress of the brake cable and outputting a brake cable stress detection signal;
and the controller is connected with the force sensor and the Hall sensor and is used for judging the state of the brake cable according to the stress detection signal and the brake operation signal.
2. The braking system of claim 1, wherein the force sensor comprises:
the first end of the elastic body is connected with the brake cable, the second end of the elastic body is connected with the brake handle, and the elastic body deforms according to the tightness of the brake cable;
the strain gauge is arranged on the elastic body and used for generating micro strain based on the deformation of the elastic body and generating the brake cable stress detection signal.
3. The braking system of claim 1,
the brake cable comprises a plurality of brake line segments, and the brake line segments are connected through a connecting piece;
the force sensor is at least one, and at least one force sensor is arranged on the connecting piece.
4. The braking system of claim 1,
the first end of brake cable with the brake handle is connected, the second end of brake cable is connected with the brake executive component, force sensor sets up the first end of brake cable with the junction of brake handle, perhaps, force sensor sets up the second end of brake cable with the junction of brake executive component.
5. The braking system of claim 1, wherein the controller comprises:
the signal amplification unit is connected with the force sensor and the Hall sensor and is used for acquiring the brake cable stress detection signal and the brake operation signal and amplifying the signals;
and the control unit is connected with the signal amplification unit and is used for judging the state of the brake cable according to the amplified brake cable stress detection signal and the amplified brake operation signal.
6. The braking system of any one of claims 1 to 5, further comprising:
and the reminding device is connected with the controller and is used for reminding when the abnormal state of the brake cable is determined.
7. The braking system of claim 1, wherein the brake lever comprises:
a handle including an operating portion, a wire portion and a first fixing portion, the operating portion and the wire portion being connected to each other, the wire portion and the first fixing portion being connected to each other;
the brake cable comprises a body and a brake cable, wherein the body comprises a shell, the shell is enclosed to form an accommodating groove, a mounting hole and a wire inserting hole are defined in the shell, a second fixing part is arranged on the shell at the mounting hole, and a first end of the brake cable penetrates through the wire inserting hole to enter the accommodating groove;
the fixing piece is used for connecting the first fixing portion and the second fixing portion, so that the handle can rotate around the fixing piece, the connecting portion penetrates through the mounting hole to be connected with the first end of the brake cable, the connecting portion is located in the accommodating groove when the operating portion is not stressed, and the connecting portion is pulled outwards through the mounting hole to tension the brake cable when the operating portion is stressed.
8. The braking system of claim 7, wherein the body further comprises a cover covering the housing, the cover is detachably connected to the housing, and the hall sensor is disposed in the receiving groove.
9. The braking system of claim 7,
the first fixing part is provided with a first fixing hole, and the second fixing part is provided with a second fixing hole;
the fixing member includes a bolt and a nut, the bolt passing through the second fixing hole and the first fixing hole and cooperating with the nut to make the handle rotatable about the bolt;
the fixing piece further comprises a resetting piece, the resetting piece is sleeved on the bolt and used for enabling the handle to reset after the stress of the operation portion disappears.
10. A walk-substituting vehicle, comprising:
a vehicle body;
the braking system of any one of claims 1 to 9, disposed on the vehicle body.
11. A vehicle operation and maintenance system, comprising:
a plurality of the ride-on vehicles of claim 10;
and the operation and maintenance terminal is communicated with the vehicle for riding instead of walk so as to receive the brake cable abnormity reminding information of the vehicle for riding instead of walk.
12. The vehicle operation and maintenance system according to claim 11, further comprising:
and the cloud server performs data interaction with the transportation vehicle and the operation and maintenance terminal respectively so as to send the abnormal reminding information of the brake cable of the transportation vehicle to the operation and maintenance terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122518517.8U CN216332556U (en) | 2021-10-19 | 2021-10-19 | Braking system, vehicle of riding instead of walk and vehicle fortune dimension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122518517.8U CN216332556U (en) | 2021-10-19 | 2021-10-19 | Braking system, vehicle of riding instead of walk and vehicle fortune dimension system |
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| CN216332556U true CN216332556U (en) | 2022-04-19 |
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| CN202122518517.8U Active CN216332556U (en) | 2021-10-19 | 2021-10-19 | Braking system, vehicle of riding instead of walk and vehicle fortune dimension system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114771492A (en) * | 2022-06-22 | 2022-07-22 | 苏州时代新安能源科技有限公司 | Brake system diagnosis method and system, storage device and vehicle |
| CN114802158A (en) * | 2022-06-22 | 2022-07-29 | 苏州时代新安能源科技有限公司 | Vehicle brake control method and system, storage device and vehicle |
| CN114832296A (en) * | 2022-04-25 | 2022-08-02 | 青岛迈金智能科技股份有限公司 | Electronic operation device of spinning |
| CN115112387A (en) * | 2022-06-13 | 2022-09-27 | 杭州雷风新能源科技有限公司 | Electric bicycle brake fault detection method, terminal equipment and electric bicycle |
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2021
- 2021-10-19 CN CN202122518517.8U patent/CN216332556U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114832296A (en) * | 2022-04-25 | 2022-08-02 | 青岛迈金智能科技股份有限公司 | Electronic operation device of spinning |
| CN115112387A (en) * | 2022-06-13 | 2022-09-27 | 杭州雷风新能源科技有限公司 | Electric bicycle brake fault detection method, terminal equipment and electric bicycle |
| CN114771492A (en) * | 2022-06-22 | 2022-07-22 | 苏州时代新安能源科技有限公司 | Brake system diagnosis method and system, storage device and vehicle |
| CN114802158A (en) * | 2022-06-22 | 2022-07-29 | 苏州时代新安能源科技有限公司 | Vehicle brake control method and system, storage device and vehicle |
| CN114802158B (en) * | 2022-06-22 | 2022-11-11 | 苏州时代新安能源科技有限公司 | Vehicle brake control method and system, storage device and vehicle |
| CN114771492B (en) * | 2022-06-22 | 2022-11-22 | 苏州时代新安能源科技有限公司 | Brake system diagnosis method and system, storage device and vehicle |
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