CN111231587A - Self-inflating constant-pressure tire burst prevention system - Google Patents
Self-inflating constant-pressure tire burst prevention system Download PDFInfo
- Publication number
- CN111231587A CN111231587A CN202010100362.3A CN202010100362A CN111231587A CN 111231587 A CN111231587 A CN 111231587A CN 202010100362 A CN202010100362 A CN 202010100362A CN 111231587 A CN111231587 A CN 111231587A
- Authority
- CN
- China
- Prior art keywords
- tire
- pressure
- inflation
- inflating
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
- B60C23/004—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving the control being done on the wheel, e.g. using a wheel-mounted reservoir
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
Abstract
The invention provides a self-inflating constant-pressure tire burst prevention system, and belongs to the technical field of machinery. The problem that the accident of tire burst cannot be avoided due to limited reserve amount of gas in the conventional tire burst prevention system is solved. The self-inflating constant-pressure tire burst-proof system comprises a vehicle centralized controller, an executing mechanism, a detection assembly and an inflating assembly fixed on each tire of a vehicle, wherein the detection assembly is electrically connected with the vehicle centralized controller, the inflating assembly comprises a cylinder body and a piston connected in the cylinder body in a sliding manner, the piston separates an inner cavity of the cylinder body into a compression cavity and an air inlet cavity communicated with the outside, the cylinder body is fixed on a hub of a corresponding tire, the compression cavity is communicated with the corresponding tire through an inflating one-way valve, the piston is further provided with an air inlet one-way valve communicated with the air inlet cavity and the compression cavity in a one-way manner, and the executing mechanism is electrically connected with the vehicle centralized controller and can control. The system realizes the combination of early warning and control, and then eliminates the association protocol types of dangerous cases, avoids the occurrence of tire burst accidents, and ensures the life safety of passengers.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a self-inflating constant-pressure tire burst prevention system.
Background
It is well known that "flat tires" in most cases are often the result of under-or over-pressurization of the tire. When the air pressure does not meet the standard requirement, because the air pressure of the tire is too low, the sinking amount of the wheel is increased, the radial deformation amount is increased, the friction between the tire tread and the ground is increased, the rolling resistance is increased, the internal stress of the tire body is increased along with the increase of the internal stress of the tire body, the temperature of the tire body is increased rapidly, the tire tread rubber is wavy and is bent rapidly, the rubber is softened for a long time, the rapid aging of the tire is promoted, and the local delamination of the tire body and the abrasion. In this case, if the automobile is still running on the expressway at a high speed, the above-described reaction of the tire is accelerated, and the occurrence of a tire burst cannot be avoided. According to scientific data display: the death rate of the burst tire is almost 100% when the speed per hour is more than 120 yards; when the speed per hour is about 100 yards, the probability of overturning or damaging the vehicle after tire burst is also 100 percent; and after the tire burst at the speed of about 90 yards per hour, the operation can be correctly carried out to effectively control the driving, and finally, only 3 percent of people can stably stop the out-of-control vehicle.
At present, most of high-grade vehicle models are provided with tire pressure monitoring systems, namely, the tire pressure monitoring systems comprise sensors and transmitters which are arranged in tires, and receivers and displays which are arranged in a cab, the monitoring systems are used for detecting the air pressure of the tires in real time and in the whole course, and alarm reminding is realized when the air pressure of a certain tire is abnormal. However, the system can only perform monitoring and reminding, and is easy to ignore, or cannot avoid the accident of tire burst when the vehicle runs on a highway and cannot be parked at will and take measures in time, or the vehicle does not take corresponding measures in the field.
Therefore, the applicant proposed in 2014 a vehicle safety explosion-proof system (application number: 201410586290.2) capable of automatically detecting and inflating tire pressure during driving, which comprises a tire pressure monitoring system for detecting the tire pressure of each tire of a vehicle, an air pump, an air storage tank and rotary joints fixedly arranged on hubs of wheels of the vehicle respectively, wherein each rotary joint is positioned outside the hubs, a rotating shaft of each rotary joint is coaxially arranged with the corresponding wheel, air inlet interfaces of each rotary joint are communicated with the air storage tank through air inlet pipelines respectively, and each air inlet pipeline is provided with a first switching electromagnetic valve respectively; the air outlet interfaces of the rotary joints are respectively communicated with the inflating valves of the corresponding wheels through inflating pipelines; the air pump is communicated with the air storage tank through a pressurizing pipeline, and a second switch electromagnetic valve is arranged on the pressurizing pipeline.
The system can timely repair the low-pressure tire in the driving process, and can effectively avoid tire burst accidents caused by low pressure of the tire in the high-speed driving process of the automobile. However, the applicant has found the following defects after research: in the system, whether the tire can always keep normal air pressure during running is mainly determined by the air storage amount in the air storage tank, and as is known, the installation space of the vehicle is very limited, so that the air storage tanks installed in the vehicle for emergency measures are very small, the air storage amount is very limited, and once the air in the air storage tanks is used up in the running process, the tire can not ensure the required normal air pressure any more, and the accident of tire burst can not be avoided.
In order to reduce the occurrence of a flat tire accident, the conventional method mainly comprises the following points: 1. the size of increase gas holder improves the gas storage volume, but the installation space of current vehicle all can't satisfy the requirement, needs to do planning design again to the spatial layout of vehicle, and the design degree of difficulty is great, and the cost is higher. 2. The alarm mechanism is arranged to prompt a driver to reduce the speed of the vehicle so as to reduce the occurrence probability of tire burst or stop the vehicle for waiting for rescue, but at high speed, the vehicle speed or the vehicle stop at too low speed has great potential safety hazard.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a self-inflating constant-pressure tire burst prevention system, and aims to solve the technical problems that: how to solve the problem of tire burst accidents caused by abnormal tire pressure.
The purpose of the invention can be realized by the following technical scheme: the utility model provides a from flat tire system of inflation constant voltage, includes vehicle collection accuse ware, is used for detecting the determine module of each tire pressure of vehicle and fixes the subassembly of aerifing on each tire of vehicle, determine module is connected with vehicle collection accuse ware electricity, the subassembly of aerifing includes cylinder body and sliding connection piston in the cylinder body, the piston separates the inner chamber of cylinder body for the compression chamber and with the chamber of admitting air of external intercommunication, the cylinder body is fixed on the wheel hub that corresponds the tire and the compression chamber is through aerifing the check valve and corresponding tire intercommunication, still be equipped with the check valve of admitting air of one-way intercommunication chamber of admitting air and compression chamber on the piston, this flat tire system still includes the actuating mechanism that can control the piston round trip to slide, actuating mechanism with vehicle collection accuse ware electricity is connected.
In the system, a detection assembly is used for monitoring the current pressure of each tire constantly and sending the monitored pressure data information to a vehicle centralized controller for protocol joint control, the vehicle centralized controller compares and analyzes the pressure data information, when the air pressure of a certain tire is detected to be lower than a set value, an execution command is sent to an execution mechanism, the execution mechanism can control an inflation assembly on the corresponding tire to inflate and repair the pressure of the tire until the air pressure of the tire is recovered to be normal, the detection assembly sends the detected normal pressure data to the vehicle centralized controller, and the vehicle centralized controller sends an inflation stopping command after the air pressure of the tire is confirmed to be normal through comparison and analysis.
This run-flat tire system is with anti-conventional design, through carrying out the improved design to inflatable structure, the subassembly of aerifing of a unique structure has been designed, form compression chamber and air inlet chamber through the piston partition promptly in the cylinder body, actuating mechanism control piston promotes toward compression chamber direction, make the gas in the compression chamber compressed, through the change of differential pressure after the compression, can send the gas in the compression chamber into the tire through aerifing the check valve, realize the benefit pressure to the tire, then actuating mechanism controls the piston again and slides back and resets, through the effect of air inlet check valve, can make the gas in the air inlet chamber get into in the compression chamber again, then repeat above-mentioned step, continue to realize carrying out the benefit pressure to the tire. That is to say, this system need not to set up the gas holder through above-mentioned unique structural design, has avoided installation space's restriction, can realize directly breathing in from the external simultaneously and carry out mechanical pressure repair to the tire, that is to say, aerify the pressure repair and can go on in real time, guaranteed that the vehicle can the tire can be stable keep the constant voltage all the time in the driving process, realized that early warning and control eliminate dangerous case relevance agreement type and combine together, avoided the emergence of flat accident. Meanwhile, the system only carries out inflation and pressure repair on the tire with lower detected air pressure, and does not simultaneously carry out inflation and pressure repair on four tires, so that the danger of tire burst caused by overhigh tire pressure of other tires is avoided. Besides, the system can continue to use the conventional hub in the market, only drill a small hole at the corresponding part of the hub without special modification and too many changes, and install the inflation one-way valve outside the small hole (at the side of the air cavity of the ground binding surface). After the inflation one-way valve is installed, the air source input end of the inflation one-way valve extends to the outside of the hub (the area near the wheel axle) and is communicated with the compression cavity of the cylinder body, the inflation one-way valve can ensure that air pressure of the tire can only be high-pressure air inlet under the normal condition and in the inflation process, and the air pressure in the tire cannot be leaked outwards. In this application, the vehicle centralized control ware is on-vehicle ECU.
Preferably, in the self-inflating constant-pressure tire burst preventing system, each tire is provided with two groups of the inflation assemblies, and the two groups of inflation assemblies are symmetrically arranged close to two sides of the corresponding wheel hub. Set up two sets of subassemblies of aerifing through the symmetry, can be fast, stable, even aerify the benefit pressure for the tire, guaranteed the vehicle can the tire keep the constant pressure that can stabilize all the time in the driving process, avoided the emergence of flat accident.
Preferably, in the self-inflating constant-pressure tire burst preventing system, each tire is provided with the actuating mechanism, the actuating mechanism comprises two semi-annular lever pressure bridges, one ends of the two lever pressure bridges are hinged to each other, the other ends of the two lever pressure bridges are connected through a hydraulic part capable of pushing the two lever pressure bridges to swing outwards around a hinged point, and the two lever pressure bridges are located between the two corresponding inflation assemblies and can push pistons of the corresponding inflation assemblies to slide through swinging. Thereby can drive two lever pressure bridges and outwards swing through the hydraulic part and promote the piston phase compression chamber direction that corresponds and slide, through the change of compression back pressure differential, can send the gas in the compression chamber into the tire through aerifing the check valve, can be fast, stable, even aerify the mending pressure for the tire, guaranteed the vehicle can the tire keep the constant voltage that can stabilize throughout in the driving process, avoided the emergence of flat accident.
Preferably, in the self-inflating constant-pressure tire burst preventing system, each hydraulic part is connected with a master cylinder of a vehicle through a hydraulic oil path, a first execution valve capable of controlling the on-off of the hydraulic oil path is arranged on the hydraulic oil path, and the first execution valve is electrically connected with the vehicle centralized controller. The actuating mechanism is arranged in a hollow position in the hub, fixed outside the brake disc or on the wheel shaft, and connected into the brake master cylinder through a hydraulic oil way, so that the actuating mechanism is provided with an inflation source power, and other power structures do not need to be additionally arranged. The problem of installation space restriction has been overcome, has solved one of the key technology for intelligence is from aerifing to realized utilizing braking energy to pressurize the promotion to the piston when the brake and aerifing the benefit pressure, can not be in accelerating with normal driving and produce any influence to power, also rationally utilize the brake hydraulic system function simultaneously, improved the utilization ratio and the function extensibility of functional system.
Preferably, in the self-inflating constant-pressure tire burst-preventing system, a first return spring is further arranged between the two lever pressure bridges. The first reset spring is arranged, so that automatic reset of the two levers after the pressure bridge swings can be realized, reciprocating motion can be realized, and the pushing of the piston is controlled to pressurize and inflate.
Preferably, in the self-inflating constant-pressure tire burst preventing system, each set of inflation assembly includes at least two inflation assemblies, a piston rod with one end extending out of the cylinder body is arranged on a piston of each inflation assembly, a stress bridge is correspondingly fixed on each piston rod, one end of the stress bridge is hinged to a hub of a corresponding tire, a stable pressurizing guide plate is further arranged between each set of inflation assembly and the corresponding lever pressure bridge, the plate surfaces at two ends of the stable pressurizing guide plate are connected with the hubs through a return spring II, the stress bridges are abutted against the stable pressurizing guide plate, the lever pressure bridge can be abutted against the stable pressurizing guide plate through outward swinging, and a return spring III is further arranged between the piston rod and the cylinder body, so that the piston rod always tends to move out of the cylinder body.
At least two air inflation assemblies in each group are inflated synchronously, and rapid and stable pressure compensation can be realized. The detection component dynamically sends the wheel pressure to the vehicle centralized controller in real time, the vehicle centralized controller analyzes and detects through real-time dynamic analysis, when the pressure of a certain tire is analyzed to be lower than a set value, an execution command is sent, the first execution valve is enabled to be opened to be in an opening state, when general braking is needed, hydraulic flow preferentially passes through the first execution valve, the execution mechanism pushes the two lever pressure bridges to swing under the action of high-pressure hydraulic flow, at the moment, when the wheel hub rotates to be opposite to the two lever pressure bridges, the lever pressure bridges press the stable pressure guide plates, the stressed bridges swing inwards, and the pistons are pushed to slide towards the compression cavities to inject gas in the compression cavities into the tires through the inflating one-way valves. When the wheel rotates by an inflation angle, namely the stable pressurization guide plate is staggered with the two lever pressure bridges, the piston slides outwards to reset under the action of the second reset spring and the third reset spring, gas is sucked into the compression cavity again under the action of the air inlet one-way valve in the resetting process, the air compression in the next period is waited, and the steps are repeated until the air pressure of the wheel is recovered to be normal until the detection assembly sends normal data to the vehicle centralized controller, and the vehicle centralized controller sends an inflation stopping instruction to the execution valve after the detection analysis confirms to be normal.
As a replacement scheme, in the above-mentioned self-inflating constant-pressure tire burst prevention system, each set of inflation assembly includes an inflation assembly, a stable pressurization guide plate is further disposed between each set of inflation assembly and the corresponding lever pressure bridge, the plate surfaces at the two ends of the stable pressurization guide plate are connected with the wheel hub through a second return spring, a piston rod with one end extending out of the cylinder body is disposed on a piston of the inflation assembly, the piston rod is fixedly connected with the corresponding stable pressurization guide plate, the lever pressure bridge can be abutted against the stable pressurization guide plate through outward swinging, and a third return spring which always enables the piston rod to have a trend of moving out of the cylinder body is further disposed between the piston rod and the cylinder body.
The detection component sends the dynamic numerical value of the wheel pressure to the vehicle centralized controller in real time, the vehicle centralized controller analyzes and detects through real-time dynamic analysis, when the pressure of a certain tire is analyzed to be lower than a set value, an execution command is sent, the first execution valve is enabled to be opened to be in an open state, when general braking is needed, hydraulic flow preferentially passes through the first execution valve, the execution mechanism pushes the two lever pressure bridges to swing under the action of high-pressure hydraulic flow, at the moment, when the hub rotates to be opposite to the two lever pressure bridges, the lever pressure bridges press the stable pressure guide plates, and therefore the pistons are pushed to slide towards the compression cavities, and gas in the compression cavities is injected into the tires through the inflating one-way valves. When the wheel rotates by an inflation angle, namely the stable pressurization guide plate is staggered with the two lever pressure bridges, the piston slides outwards to reset under the action of the second reset spring and the third reset spring, gas is sucked into the compression cavity again under the action of the air inlet one-way valve in the resetting process, the air compression in the next period is waited, and the steps are repeated until the air pressure of the wheel is recovered to be normal until the detection assembly sends normal data to the vehicle centralized controller, and the vehicle centralized controller sends an inflation stopping instruction to the execution valve after the detection analysis confirms to be normal.
Preferably, in the self-inflating constant-pressure tire burst prevention system, the cylinder body is further provided with an air inlet filter element, one end of the air inlet filter element is communicated with the air inlet cavity, and the other end of the air inlet filter element is communicated with the outside. The design of the air inlet filter element is matched with the action of the air inlet check valve, so that external air can be sucked into the compression cavity of the cylinder body, and meanwhile, impurities are prevented from entering.
As a replacement scheme, in the self-inflating constant-pressure tire burst prevention system, each tire is provided with the actuating mechanism, the actuating mechanism comprises two semicircular lever pressure bridges, the middle parts of the two lever pressure bridges are connected through a hydraulic part capable of pushing the two lever pressure bridges to move relatively, and the two lever pressure bridges are located between the two groups of inflation assemblies and can push the pistons of the corresponding inflation assemblies to slide through one ends of the two lever pressure bridges. The hydraulic part can push the two lever pressure bridges to move relatively, so that the corresponding pistons are pushed to slide to inflate, namely, the automatic inflation is executed through the center expansion type.
Preferably, in the self-inflating constant-pressure tire burst preventing system, the system further comprises a travel switch for detecting the travel displacement of the vehicle brake pedal connecting rod, and the travel switch is connected with the vehicle centralized controller. The system is set by combining the distance signal of the travel displacement of the connecting rod of the brake pedal according to the strength of stepping the brake pedal by giving priority to the action of triggering the brake and whether the brake is needed or not. The stroke displacement of a connecting rod of the brake pedal is divided into a first pitch signal and a second pitch signal in advance, a stroke switch is used for triggering the signals as commands, and when the first pitch signal is triggered, the signals are used for switching on an inflation execution valve needing inflation and inflating the tire with lower air pressure to pressurize and inflate the tire; when the second pitch signal is triggered, the brake system starts to intervene to realize normal brake function, so that the design does not influence the power of the ordinary driving, and the power energy and energy consumption required by intelligent self-inflation can be realized by effectively utilizing the inertia energy of the vehicle body in driving.
Compared with the prior art, this from aerifing constant pressure explosion-proof child system has following advantage:
1. the constant pressure of the tire can be stably maintained all the time in the driving process of the vehicle, drivers can be warned in advance, blind driving is avoided, the key is that the dangerous case can be automatically controlled and eliminated, and early warning and control elimination of the dangerous case correlation protocol type are combined.
2. The tire burst accident is avoided, the life safety of a driver and a passenger is guaranteed, and the safety threat existing in high-speed driving is reduced.
3. The tire pressure detection function is effectively used, the detection function is used for exerting the detection result, the command required by the next step is executed according to the result, and the substantial effect of the detection function is exerted.
4. The intelligent recognition is flexibly and singly executed, the necessary inflation and pressure repair are only carried out on the low-pressure tires, and the tire burst caused by the simultaneous pressure repair of four tires by one stroke is avoided.
5. The actuating mechanism is connected into the brake master cylinder through the hydraulic oil circuit, so that the piston is pressurized and pushed to be inflated and supplemented with pressure by preferentially utilizing the brake energy during braking, the power cannot be influenced in acceleration and normal running, the functions of the brake hydraulic system are reasonably utilized, and the utilization rate and the function extensibility of a functional system are improved.
6. The intellectualization of the function realizes that the intelligent driving is the requirement of the technical progress of the automobile technology.
7. Easy manufacture, convenient installation, maintainability, no influence on normal driving even after failure, and low maintenance cost.
8. The device does not occupy space, does not influence wheel design and wheel rotation, is simple and light, and does not bring extra load and burden to the vehicle body and power.
Drawings
FIG. 1 is a control schematic diagram of the present self-inflating constant pressure tire burst prevention system.
FIG. 2 is a schematic structural diagram of the self-inflating constant pressure tire burst preventing system according to the first embodiment.
FIG. 3 is a schematic structural view of an inflation assembly.
FIG. 4 is a schematic structural view of the self-inflating constant-pressure tire burst preventing system according to the second embodiment.
FIG. 5 is a schematic structural view of the self-inflating constant-pressure tire puncture preventing system according to the third embodiment.
FIG. 6 is a schematic structural view of the self-inflating constant-pressure tire puncture preventing system according to the fourth embodiment.
Fig. 7 is a schematic structural diagram of the first implementation valve.
In the figure, 1, a vehicle centralized controller; 2. a master cylinder is braked; 3. executing a first valve; 3a, a hydraulic input end; 3b, a hydraulic output end; 3c, a valve core; 3d, communicating the channels; 3e, an electromagnetic coil; 4. an actuator; 4a, pressing a bridge by a lever; 4b, a hydraulic part; 5. an inflation assembly; 5a, a cylinder body; 5a1, compression chamber; 5a2, air inlet cavity; 5b, a piston; 6. a detection component; 7. a travel switch; 8. a second execution valve; 9. a brake cylinder; 10. a tire; 10a, a hub; 11. an inflation check valve; 12. an air inlet check valve; 13. a first return spring; 14. a stressed bridge; 15. a guide plate is stably pressurized; 16. a second return spring; 17. a third return spring; 18. air inlet filter element.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1-3, the self-inflating constant-pressure tire burst-preventing system comprises a vehicle centralized controller, an actuating mechanism 4, a detecting component 6 for detecting the tire pressure of each tire 10 of a vehicle, and an inflating component 5 fixed on each tire 10 of the vehicle. The vehicle centralized controller is a vehicle-mounted ECU, the detection assembly 6 comprises a pressure sensor for detecting the tire pressure and a receiver for receiving signals sent by the pressure sensor, and the receiver is electrically connected with the vehicle centralized controller.
Specifically, each tire 10 is provided with two groups of inflation assemblies 5, the two groups of inflation assemblies 5 are symmetrically arranged close to two sides of the corresponding hub 10a, and each group of inflation assemblies 5 comprises at least two inflation assemblies 5. In this embodiment, two inflation assemblies 5 are provided in one set. Each inflation assembly 5 comprises a cylinder 5a and a piston 5b which is connected in the cylinder 5a in a sliding mode, the cylinder 5a is made of high-strength aluminum alloy materials which are equivalent to the material of the hub 10a, and the cylinder 5a is installed on the hub 10a and attached to the circumferential wall of the balance block close to the hub 10a along the inner circumferential area of the wheel shaft and fixed. The piston 5b divides the inner cavity of the cylinder 5a into a compression cavity 5a1 and an air inlet cavity 5a2 communicated with the outside, the system can continue to use the conventional hub 10a on the market, does not make special modification or much change, only drills a small hole at the corresponding part of the hub 10a, and installs the inflation check valve 11 at the outer side of the small hole (the side of the air cavity on the ground binding surface). After the inflation check valve 11 is assembled, the air supply input end of the inflation check valve 11 extends to the outside (the wheel axle region) of the wheel hub 10a to be communicated with the compression cavity 5a1 of the cylinder 5a, and the piston 5b is also provided with an air inlet check valve 12 which is communicated with the air inlet cavity 5a2 and the compression cavity 5a1 in a one-way mode. Each tire 10 is provided with an actuating mechanism 4, the actuating mechanism 4 is electrically connected with a vehicle centralized controller, a piston rod with one end extending out of the cylinder body 5a is arranged on the piston 5b, and the actuating mechanism 4 can control the piston 5b to slide back and forth. The cylinder body 5a is also provided with an air inlet filter core 18, one end of the air inlet filter core 18 is communicated with the air inlet cavity 5a2, and the other end is communicated with the outside. In this embodiment, the diameter of the cylinder 5a is properly enlarged, the piston rod is also properly thickened, and the length of the cylinder 5a is ideally sized so as not to interfere with the rotation of the wheel, braking and performing the inflation process.
Furthermore, the actuating mechanism 4 is arranged in a hollow position of the hub 10a and fixed outside the brake disc or on the wheel shaft, the actuating mechanism 4 comprises two semicircular lever pressing bridges 4a, one ends of the two lever pressing bridges 4a are hinged with each other, the other ends of the two lever pressing bridges 4a are connected through a hydraulic part 4b capable of pushing the two lever pressing bridges 4a to swing outwards around a hinged point, and a first return spring 13 is arranged between the two lever pressing bridges 4 a. Each hydraulic part 4b is connected with a master cylinder 2 of the vehicle through a hydraulic oil path, an execution valve I3 capable of controlling the on-off of the hydraulic oil path is arranged on the hydraulic oil path, and the execution valve I3 is electrically connected with a vehicle centralized controller. The first execution valve 3 comprises a valve body, a valve core 3c and an electromagnetic coil 3e, wherein the valve core 3c and the electromagnetic coil 3e are arranged in the valve body, a hydraulic input end 3a used for being communicated with a hydraulic master cylinder and a hydraulic output end 3b used for being communicated with a hydraulic piece 4b are arranged on the valve body, the hydraulic input end 3a and the hydraulic output end 3b are communicated through a communication channel 3d, the valve core 3c can block the communication channel 3d, and the electromagnetic coil 3e can control the valve core 3c to move to open or block the communication channel 3 d. The actuating mechanism 4 is connected into the master cylinder 2 through a hydraulic oil circuit, so that the actuating mechanism 4 is provided with inflation source power, and other power structures do not need to be additionally installed. The master cylinder 2 of the vehicle is also connected with the brake cylinder 9 on each tire 10 through an actuating valve II 8. In this embodiment, the hydraulic unit 4b is a hydraulic cylinder.
The two lever pressure bridges 4a are positioned between the two groups of corresponding inflation assemblies 5, a stress bridge 14 is correspondingly fixed on each piston rod, one end of each stress bridge 14 is hinged to a hub 10a of the corresponding tire 10, a stable pressurization guide plate 15 is further arranged between each group of inflation assemblies 5 and the corresponding lever pressure bridge 4a, two end plate surfaces of each stable pressurization guide plate 15 are connected with the hubs 10a through a second reset spring 16, the stress bridges 14 are abutted against the stable pressurization guide plates 15, the lever pressure bridges 4a can be abutted against the stable pressurization guide plates 15 through outward swinging, and a third reset spring 17 which enables the piston rods to have the outward movement trend towards the cylinder body 5a is further arranged between each piston rod and the cylinder body 5 a.
The system also comprises a travel switch 7 for detecting the travel displacement of the connecting rod of the vehicle brake pedal, and the travel switch 7 is connected with a vehicle centralized controller. The system is set by the priority after triggering the brake action, and the magnitude of the brake treading force is combined with the distance of the travel displacement of the brake pedal connecting rod when braking. Namely, the travel displacement of the connecting rod of the brake pedal is divided into a first pitch and a second pitch in advance, and the travel switch 7 is used as a trigger.
When the system works, the detection component 6 dynamically sends the wheel pressure to the vehicle centralized controller in real time, the vehicle centralized controller analyzes and detects through real-time dynamic analysis, when the pressure of a certain tire 10 is analyzed to be lower than a set value, an execution command is sent, the first execution valve 3 is enabled to be opened to be in an open state, when a brake pedal touches a signal matched with a first pitch, a hydraulic oil path of the master cylinder 2 is preferentially communicated with the first execution valve 3, the two lever pressure bridges 4a are pushed to swing under the action of high-pressure hydraulic flow, at the moment, when the wheel hub 10a rotates to enable the stable pressurization guide plate 15 to be opposite to the two lever pressure bridges 4a, the lever pressure bridges 4a are pressed against the stable pressurization guide plate 15, and accordingly, each piston 5b is pushed to slide towards the compression cavity 5a1, and gas in the compression cavity 5a1 is injected into the tire 10 through the inflation one-. When the wheel rotates by the inflation angle, namely the stable pressurization guide plate 15 is staggered with the two lever pressure bridges 4a, the piston 5b slides outwards to reset under the action of the second return spring 16 and the third return spring 17, gas is sucked into the compression cavity 5a1 again under the action of the air inlet one-way valve 12 in the resetting process, air compression in the next period is waited, and the steps are repeated until the air pressure of the wheel is recovered to be normal until the detection assembly 6 sends normal data to the vehicle centralized control device, and the vehicle centralized control device sends an inflation stopping instruction to the execution valve one 3 after the detection analysis confirms to be normal, so that the tire 10 of the vehicle can be kept constant pressure stably all the time in the driving process, the combination of early warning and controlling to eliminate dangerous cases is realized, and the occurrence of tire burst accidents is avoided. When the brake pedal touches the second pitch, the second execution valve 8 is switched on, and the brake system starts to intervene to realize normal brake function, so the design does not influence the power of the ordinary driving, and the power energy and the energy consumption required by intelligent self-inflation can be realized by effectively utilizing the inertia energy of the vehicle body in driving.
Example two
The structure of the present embodiment is substantially the same as that of the first embodiment, except that: as shown in fig. 4, each set of inflation assembly 5 includes one inflation assembly 5, a stable pressurization guide plate 15 is further disposed between each set of inflation assembly 5 and the corresponding lever pressure bridge 4a, the plate surfaces at the two ends of the stable pressurization guide plate 15 are connected with the hub 10a through a second return spring 16, a piston rod with one end extending out of the cylinder body 5a is disposed on a piston 5b of the inflation assembly 5, the piston rod is fixedly connected with the corresponding stable pressurization guide plate 15, the lever pressure bridge 4a can be pressed against the stable pressurization guide plate 15 through outward swinging, and a third return spring 17 which always enables the piston rod to move towards the outside of the cylinder body 5a is further disposed between the piston rod and the cylinder body 5 a.
The detection component 6 sends the dynamic state of the wheel pressure to the vehicle centralized controller in real time, the vehicle centralized controller analyzes and detects through real-time dynamic analysis, when the pressure of a certain tire 10 is analyzed to be lower than a set value, an execution command is sent, the first execution valve 3 is enabled to be opened to be in an opening state, when general braking is needed, hydraulic flow preferentially passes through the first execution valve 3, the execution mechanism 4 pushes the two lever pressure bridges 4a to swing under the action of high-pressure hydraulic flow, at the moment, the hub 10a rotates until the stable pressurization guide plate 15 is opposite to the two lever pressure bridges 4a, the lever pressure bridges 4a press the stable pressurization guide plate 15, and accordingly, the pistons 5b are pushed to slide towards the compression cavities 5a1 to inject gas in the compression cavities 5a1 into the tires 10 through the inflation one-way valve 11. When the wheel rotates through the inflation angle, namely the stable pressurization guide plate 15 is staggered with the two lever pressure bridges 4a, the piston 5b slides outwards to reset under the action of the second return spring 16 and the third return spring 17, gas is sucked into the compression cavity 5a1 again under the action of the air inlet one-way valve 12 in the resetting process, air compression in the next period is waited, and the steps are repeated until the air pressure of the wheel is recovered to be normal until the detection assembly 6 sends normal data to the vehicle centralized controller, and the vehicle centralized controller sends an inflation stopping instruction to the execution valve one 3 after the detection and analysis confirm that the wheel is normal.
EXAMPLE III
The structure of the present embodiment is substantially the same as that of the first embodiment, except that: as shown in fig. 5, the actuator 4 includes two semicircular lever pressing bridges 4a, the middle portions of the two lever pressing bridges 4a are connected by a hydraulic part 4b capable of pushing the two lever pressing bridges 4a to move relatively, and the two lever pressing bridges 4a are located between the two sets of inflation assemblies 5 and can push the pistons 5b of the corresponding inflation assemblies 5 to slide through one ends. The hydraulic part 4b can push the two lever pressing bridges 4a to move relatively, so as to push the corresponding pistons 5b to slide for inflation, namely, the automatic inflation is performed through the central expansion type.
Example four
The structure of the present embodiment is substantially the same as that of the first embodiment, except that: as shown in fig. 6, the actuator 4 includes two semicircular lever pressing bridges 4a, the middle parts of the two lever pressing bridges 4a are connected by a hydraulic part 4b capable of pushing the two lever pressing bridges 4a to move relatively, and the two lever pressing bridges 4a are located between the two sets of inflation assemblies 5. Each group of inflation assemblies 5 comprises an inflation assembly 5, a stable pressurization guide plate 15 is further arranged between each group of inflation assemblies 5 and the corresponding lever pressure bridge 4a, the plate surfaces at the two ends of the stable pressurization guide plate 15 are connected with the wheel hubs 10a through a second return spring 16, a piston rod with one end extending out of the cylinder body 5a is arranged on a piston 5b of each inflation assembly 5, the piston rod is fixedly connected with the corresponding stable pressurization guide plate 15, the lever pressure bridge 4a can be abutted against the stable pressurization guide plate 15 through outward swinging, and a third return spring 17 which always enables the piston rod to move outwards of the cylinder body 5a is further arranged between the piston rod and the cylinder body 5 a. Meanwhile, the cylinder body 5a of each inflation assembly 5 is designed and installed on the hub 10a and integrated into a whole, one half of the cylinder body is arranged outside the hub 10a, and the other half of the cylinder body is directly embedded into the inner side of the air cavity.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although 1, the car hub is used more herein; 2. a master cylinder is braked; 3. executing a first valve; 4. an actuator; 4a, pressing a bridge by a lever; 4b, a hydraulic part; 5. an inflation assembly; 5a, a cylinder body; 5a1, compression chamber; 5a2, air inlet cavity; 5b, a piston; 6. a detection component; 7. a travel switch; 8. a second execution valve; 9. a brake cylinder; 10. a tire; 10a, a hub; 11. an inflation check valve; 12. an air inlet check valve; 13. a first return spring; 14. a stressed bridge; 15. a guide plate is stably pressurized; 16. a second return spring; 17. a third return spring; 18. air inlet filter and the like, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a from flat tire system of aerifing constant pressure, includes vehicle centralized control ware, is used for detecting detection module (6) of each tire (10) tire pressure of vehicle and fixes inflation assembly (5) on each tire (10) of vehicle, detection module (6) are connected with the vehicle centralized control ware electricity, its characterized in that, inflation assembly (5) are including cylinder body (5a) and sliding connection piston (5b) in cylinder body (5a), piston (5b) are separated the inner chamber of cylinder body (5a) for compression chamber (5a1) and with the air inlet chamber (5a2) of external intercommunication, cylinder body (5a) are fixed on wheel hub (10a) that corresponds tire (10) and compression chamber (5a1) are through aerifing check valve (11) and correspond tire (10) intercommunication, still be equipped with the check valve (12) of admitting air of one-way intercommunication air inlet chamber (5a2) and compression chamber (5a1) on piston (5b), the tire burst preventing system further comprises an actuating mechanism (4) capable of controlling the piston (5b) to slide back and forth, and the actuating mechanism (4) is electrically connected with the vehicle centralized controller.
2. A self-inflating constant-pressure run-flat tire system as claimed in claim 1, wherein each tire (10) is provided with two sets of said inflation assemblies (5), the two sets of inflation assemblies (5) being symmetrically disposed adjacent to both sides of the corresponding hub (10 a).
3. A self-inflating constant-pressure run-flat system as claimed in claim 2, wherein each tire (10) is provided with the actuator (4), the actuator (4) comprises two semi-annular lever pressure bridges (4a), one ends of the two lever pressure bridges (4a) are hinged to each other, the other ends are connected by a hydraulic part (4b) capable of pushing the two lever pressure bridges (4a) to swing outwards around a hinge point, the two lever pressure bridges (4a) are located between two sets of corresponding inflation assemblies (5) and can push the pistons (5b) of the corresponding inflation assemblies (5) to slide by swinging.
4. A self-inflating constant-pressure tire burst preventing system as claimed in claim 3, wherein each hydraulic part (4b) is connected with a master cylinder (2) of the vehicle through a hydraulic oil path, the hydraulic oil path is provided with a first actuating valve (3) capable of controlling the on-off of the hydraulic oil path, and the first actuating valve (3) is electrically connected with the vehicle centralized controller.
5. A self-inflating constant-pressure run-flat system as claimed in claim 3 or 4, wherein a first return spring (13) is further provided between the two lever bridges (4 a).
6. A self-inflating constant-pressure run-flat tire-preventing system as claimed in claim 5, wherein each set of inflation components (5) comprises at least two inflation components (5), each inflation component (5) has a piston rod with one end extending out of the cylinder (5a) on the piston (5b), each piston rod is correspondingly fixed with a stress bridge (14), one end of the stress bridge (14) is hinged on the hub (10a) of the corresponding tire (10), a stable pressurization guide plate (15) is further arranged between each set of inflation components (5) and the corresponding lever pressure bridge (4a), the plate surfaces at the two ends of the stable pressurization guide plate (15) are connected with the hub (10a) through a second return spring (16), the stress bridges (14) are abutted against the stable pressurization guide plate (15), and the lever pressure bridge (4a) can be abutted against the stable pressurization guide plate (15) through outward swinging, and a third return spring (17) which always enables the piston rod to have the trend of moving towards the outside of the cylinder body (5a) is arranged between the piston rod and the cylinder body (5 a).
7. A self-inflating constant-pressure run-flat system as claimed in claim 5, wherein each set of inflation assemblies (5) comprises one inflation assembly (5), a smooth pressurizing guide plate (15) is further provided between each set of inflation assemblies (5) and the corresponding lever pressure bridge (4a), the plate surfaces at the two ends of the stable pressurizing guide plate (15) are connected with the hub (10a) through a second return spring (16), a piston rod with one end extending out of the cylinder body (5a) is arranged on a piston (5b) of the inflation component (5), the piston rods are fixedly connected with the corresponding stable pressurizing guide plates (15), the lever pressing bridge (4a) can be pressed on the stable pressurizing guide plates (15) through outward swinging, and a third return spring (17) which always enables the piston rod to have the trend of moving towards the outside of the cylinder body (5a) is arranged between the piston rod and the cylinder body (5 a).
8. A self-inflating constant-pressure run-flat system as claimed in claim 1, 2, 3 or 4, wherein the cylinder body (5a) is further provided with an air inlet filter element (18), one end of the air inlet filter element (18) is communicated with the air inlet cavity (5a2), and the other end is communicated with the outside.
9. A self-inflating constant-pressure run-flat system as claimed in claim 2, wherein each tire (10) is provided with the actuator (4), the actuator (4) comprises two semicircular lever pressure bridges (4a), the middle parts of the two lever pressure bridges (4a) are connected through a hydraulic part (4b) capable of pushing the two lever pressure bridges (4a) to move relatively, and the two lever pressure bridges (4a) are located between the two sets of inflation assemblies (5) and can push the pistons (5b) of the corresponding inflation assemblies (5) to slide through one end.
10. A self-inflating constant-pressure run-flat tire system as claimed in claim 4, further comprising a travel switch (7) for detecting the travel displacement of a brake pedal link of the vehicle, wherein the travel switch (7) is connected with a vehicle centralized controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100362.3A CN111231587B (en) | 2020-02-18 | 2020-02-18 | Self-inflating constant-pressure tire burst prevention system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010100362.3A CN111231587B (en) | 2020-02-18 | 2020-02-18 | Self-inflating constant-pressure tire burst prevention system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111231587A true CN111231587A (en) | 2020-06-05 |
| CN111231587B CN111231587B (en) | 2021-12-14 |
Family
ID=70862680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010100362.3A Active CN111231587B (en) | 2020-02-18 | 2020-02-18 | Self-inflating constant-pressure tire burst prevention system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111231587B (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640331A (en) * | 1984-06-04 | 1987-02-03 | Eaton Corporation | Central tire inflation system |
| CN1076255A (en) * | 1992-03-05 | 1993-09-15 | 贡小鸿 | Electric inflator for bicycle |
| CN2445954Y (en) * | 2000-09-22 | 2001-09-05 | 熊学斌 | Self-inflatting device of motor vehicle |
| CN2837604Y (en) * | 2005-10-18 | 2006-11-15 | 比亚迪股份有限公司 | Exhaust valve for brake |
| CN101830153A (en) * | 2010-06-21 | 2010-09-15 | 陈晶雅 | Wheel capable of being automatically inflated |
| JP2011057201A (en) * | 2009-09-10 | 2011-03-24 | Toshiko Shimauchi | Automatic supply device of pneumatic pressure in traveling (air leakage) of automobile (tire) |
| US20120018070A1 (en) * | 2010-07-26 | 2012-01-26 | Jeff Anthony Schulte | Automatic tire inflation system |
| CN202213455U (en) * | 2011-07-26 | 2012-05-09 | 冯泇铖 | Tire automatic inflating device and wheel with same |
| CN102529614A (en) * | 2012-02-26 | 2012-07-04 | 张卫 | Automatic inflation pump |
| CN202357872U (en) * | 2011-09-05 | 2012-08-01 | 郑乃时 | Utilization apparatus of pneumatic tire recovered pressure energy and inertial energy |
| CN202358062U (en) * | 2011-12-01 | 2012-08-01 | 上海华普汽车有限公司 | Automobile tire inflation system |
| CN202480796U (en) * | 2012-01-04 | 2012-10-10 | 东北林业大学 | Running inflation rim of automobile |
| US20130251553A1 (en) * | 2012-03-20 | 2013-09-26 | Aperia Technologies | Tire inflation system |
| CN203472440U (en) * | 2013-07-23 | 2014-03-12 | 比亚迪股份有限公司 | Car and tire pressure compensation device for same |
| CN203888549U (en) * | 2014-05-27 | 2014-10-22 | 王成杰 | Automatic automobile air inflation device |
| CN104742667A (en) * | 2014-10-28 | 2015-07-01 | 浙江吉利控股集团有限公司 | Car safety and burst prevention system capable of automatically detecting tire pressure and inflating during running |
| CN205674792U (en) * | 2016-06-23 | 2016-11-09 | 安徽机电职业技术学院 | A kind of braking automobile warning safe aid system |
| CN106347037A (en) * | 2016-09-07 | 2017-01-25 | 王明中 | Explosion-proof safety lining plate of automotive vacuum tire |
| CN106739849A (en) * | 2016-12-20 | 2017-05-31 | 浙江福林国润汽车零部件有限公司 | A kind of intelligent automatic tire inflation systems |
| CN109677263A (en) * | 2019-02-25 | 2019-04-26 | 张茂和 | A kind of accelerator anti-false step linkage brake safety device |
| CN110561987A (en) * | 2013-11-11 | 2019-12-13 | 伊夸莱尔系统公司 | Vehicle tire inflation system |
| CN111622135A (en) * | 2020-06-12 | 2020-09-04 | 湖南城市学院 | Bridge reinforcing bracket |
-
2020
- 2020-02-18 CN CN202010100362.3A patent/CN111231587B/en active Active
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640331A (en) * | 1984-06-04 | 1987-02-03 | Eaton Corporation | Central tire inflation system |
| CN1076255A (en) * | 1992-03-05 | 1993-09-15 | 贡小鸿 | Electric inflator for bicycle |
| CN2445954Y (en) * | 2000-09-22 | 2001-09-05 | 熊学斌 | Self-inflatting device of motor vehicle |
| CN2837604Y (en) * | 2005-10-18 | 2006-11-15 | 比亚迪股份有限公司 | Exhaust valve for brake |
| JP2011057201A (en) * | 2009-09-10 | 2011-03-24 | Toshiko Shimauchi | Automatic supply device of pneumatic pressure in traveling (air leakage) of automobile (tire) |
| CN101830153A (en) * | 2010-06-21 | 2010-09-15 | 陈晶雅 | Wheel capable of being automatically inflated |
| US20120018070A1 (en) * | 2010-07-26 | 2012-01-26 | Jeff Anthony Schulte | Automatic tire inflation system |
| CN202213455U (en) * | 2011-07-26 | 2012-05-09 | 冯泇铖 | Tire automatic inflating device and wheel with same |
| CN202357872U (en) * | 2011-09-05 | 2012-08-01 | 郑乃时 | Utilization apparatus of pneumatic tire recovered pressure energy and inertial energy |
| CN202358062U (en) * | 2011-12-01 | 2012-08-01 | 上海华普汽车有限公司 | Automobile tire inflation system |
| CN202480796U (en) * | 2012-01-04 | 2012-10-10 | 东北林业大学 | Running inflation rim of automobile |
| CN102529614A (en) * | 2012-02-26 | 2012-07-04 | 张卫 | Automatic inflation pump |
| US20130251553A1 (en) * | 2012-03-20 | 2013-09-26 | Aperia Technologies | Tire inflation system |
| CN203472440U (en) * | 2013-07-23 | 2014-03-12 | 比亚迪股份有限公司 | Car and tire pressure compensation device for same |
| CN110561987A (en) * | 2013-11-11 | 2019-12-13 | 伊夸莱尔系统公司 | Vehicle tire inflation system |
| CN203888549U (en) * | 2014-05-27 | 2014-10-22 | 王成杰 | Automatic automobile air inflation device |
| CN104742667A (en) * | 2014-10-28 | 2015-07-01 | 浙江吉利控股集团有限公司 | Car safety and burst prevention system capable of automatically detecting tire pressure and inflating during running |
| CN205674792U (en) * | 2016-06-23 | 2016-11-09 | 安徽机电职业技术学院 | A kind of braking automobile warning safe aid system |
| CN106347037A (en) * | 2016-09-07 | 2017-01-25 | 王明中 | Explosion-proof safety lining plate of automotive vacuum tire |
| CN106739849A (en) * | 2016-12-20 | 2017-05-31 | 浙江福林国润汽车零部件有限公司 | A kind of intelligent automatic tire inflation systems |
| CN109677263A (en) * | 2019-02-25 | 2019-04-26 | 张茂和 | A kind of accelerator anti-false step linkage brake safety device |
| CN111622135A (en) * | 2020-06-12 | 2020-09-04 | 湖南城市学院 | Bridge reinforcing bracket |
Non-Patent Citations (1)
| Title |
|---|
| 朱阳: "《汽车底盘构造与维修》", 30 December 2016, 国防工业出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111231587B (en) | 2021-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201525371U (en) | Air brake system with low pressure safety protection | |
| CN100567036C (en) | Intelligent alterable tire adhesion force mechanism | |
| CN201154697Y (en) | Automobile anti-collision system | |
| CN201437357U (en) | Air brake system for electric proportional control of engineering special vehicle | |
| CN1865052A (en) | Safety device of automobile tyre burst | |
| CN206287853U (en) | One kind failure self diagnosis and self-shield device with pedal | |
| CN105835859A (en) | Permanent magnet composite type brake chamber capable of improving brake hysteresis characteristics of trailer and control method of brake chamber | |
| CN111231587B (en) | Self-inflating constant-pressure tire burst prevention system | |
| CN106585281A (en) | Application method of intelligent network flat tire preventing device | |
| CN102358274A (en) | Control device and control method for preventing braking deviation of automobile | |
| CN106585283A (en) | Intelligent network flat tire preventing device | |
| CN207875610U (en) | The compound line control brake system of intelligent automobile | |
| CN204161350U (en) | A kind of anti-malfunctioning vehicle air brake system | |
| CN202378856U (en) | Master brake valve with microswitch | |
| CN101927758A (en) | Brake pedal simulator and brake system | |
| CN201559644U (en) | Intelligent braking device | |
| CN101397007A (en) | Auxiliary braking device with electric control function | |
| CN104192123A (en) | Intelligent air cut valve | |
| CN107962914A (en) | For vehicle vehicle wheel component and there is its vehicle | |
| CN201201593Y (en) | Valve means and pneumatic braking system including the same | |
| CN103237668B (en) | Tire pressure regulates and prevents tire burst device and installed the vehicle of described device | |
| CN106740104B (en) | Intelligent network automobile collision-proof device | |
| CN111002969A (en) | Hydraulically-controlled automobile tire burst prevention emergency device | |
| CN204161349U (en) | A kind of anti-failure brake master valve | |
| CN204161348U (en) | A kind of anti-malfunctioning three control relay valves |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |