CN117815809A - Brake dust collection device, control method and vehicle - Google Patents
Brake dust collection device, control method and vehicle Download PDFInfo
- Publication number
- CN117815809A CN117815809A CN202311709695.6A CN202311709695A CN117815809A CN 117815809 A CN117815809 A CN 117815809A CN 202311709695 A CN202311709695 A CN 202311709695A CN 117815809 A CN117815809 A CN 117815809A
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- dust
- vacuum
- air inlet
- brake
- dust collection
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- 239000000428 dust Substances 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a braking dust collection device, a control method and a vehicle, which belong to the field of development of automobile environment-friendly technology, and comprise a dust collector and a vacuum source, wherein the dust collector is provided with an air inlet, an air outlet, an inner cavity and a filter element arranged in the inner cavity; the vacuum source is connected with the exhaust port, so that dust generated by the brake pad can be collected when the automobile brakes to the greatest extent, the air quality is improved, accurate judgment can be carried out on the 'when to start absorbing brake dust' and the 'quantity to be absorbed' according to the running state of the automobile, when the dust fills the collector, a signal can be sent to the instrument to inform a driver to store for maintenance, the dust disposal is controlled, and secondary emission into the atmosphere is avoided.
Description
Technical Field
The invention relates to the field of development of automobile environment-friendly technology, in particular to a braking dust collecting device, a control method and a vehicle.
Background
Analysis of the particulate emissions sources in the related art has shown that particulates produced from non-exhaust gases have reached 85% of the total particulate emissions from the road, most of which result from braking and tire wear. Even electric vehicles with zero exhaust emissions, particulate emissions due to braking and tire wear are unavoidable. The environment is protected, the living environment of human beings is improved, the emission of brake dust particles is reduced, and the brake dust particles are unprecedented.
Therefore, a plurality of schemes are proposed in the industry, aiming at reducing the emission of brake dust into the air, the conventional method is to sleeve a semi-open brake powder filtering device on the periphery of a brake disc, collect and filter the brake powder by utilizing the rotating airflow and the gravity action of the brake disc, and the structure is simple, so that the brake powder collecting device can be easily installed on the existing automobile product and can play a certain role in collection and filtration.
Disclosure of Invention
The invention provides a brake dust collecting device, a control method and a vehicle, which can prevent dust from being discharged into the atmosphere for the second time in the dust collecting process and improve the collecting efficiency.
According to an embodiment of the first aspect of the present invention, a brake dust collection device includes: the dust collector is provided with at least one air inlet, an air outlet, an inner cavity and a filter element arranged in the inner cavity, the filter element divides the inner cavity into a dust collecting cavity and an air outlet cavity, the dust collecting cavity is communicated with the air inlet, the air outlet cavity is communicated with the air outlet, and the air inlet is provided with a one-way air inlet valve; and the vacuum source is connected with the exhaust port.
According to some embodiments of the invention, the unidirectional air inlet valve comprises a fixed frame fixed on the inner side of the air inlet, a valve core movably arranged on the inner side of the air inlet, and an elastic piece acting on the fixed frame and the inner side of the valve core, wherein the elastic piece is used for enabling the valve core to block the air inlet.
According to some embodiments of the invention, the air inlet is provided with a suction nozzle, one end of the suction nozzle is provided with a socket joint sleeved with the air inlet, and the other end of the suction nozzle is provided with a horn head with an aperture gradually increasing along a direction away from the dust collecting cavity.
According to some embodiments of the invention, the dust collector comprises two mutually detachable housings, the air outlet and the filter element are arranged on one of the housings, and the air inlet is arranged on the other housing.
According to some embodiments of the invention, the dust collection chamber is provided with a dust detection assembly for detecting an amount of dust in the dust collection chamber.
According to some embodiments of the invention, the vacuum source comprises at least one vacuum pump and at least one vacuum tank, the vacuum pump is connected with the vacuum tank, the vacuum tank is connected with the exhaust port, and the exhaust port is connected with a solenoid valve.
A control method for reducing brake dust emissions according to an embodiment of a second aspect of the present invention includes:
and controlling the vacuum source to vacuumize at least one dust collector according to the vehicle speed and the braking pressure.
According to some embodiments of the invention, the controlling the vacuum source to evacuate at least one of the dust collectors according to vehicle speed and brake pressure further comprises:
when the vehicle speed is greater than 0 and the braking pressure is greater than 0, controlling the vacuum source to start;
and when the vehicle speed is greater than 0 and the braking pressure is equal to 0, the vacuum source is closed in a delayed mode.
According to some embodiments of the invention, the vacuum source comprises at least one vacuum pump and at least one vacuum tank, the vacuum pump being connected to the vacuum tank, the exhaust being connected to the vacuum tank by a solenoid valve;
the control method further comprises the step of establishing the vacuum degree of the vacuum tank, wherein the step of establishing the vacuum degree of the vacuum tank comprises the following steps:
when the vacuum degree value of the vacuum tank reaches a first preset value, the vacuum pump is controlled to be closed;
when the vacuum degree value of the vacuum tank is detected to be lower than a second preset value, controlling the vacuum pump to start;
the controlling the vacuum source to evacuate at least one dust collector according to the vehicle speed and the brake pressure further comprises:
the dust collector is individually controlled to be vacuumized by the electromagnetic valve.
According to an embodiment of the third aspect of the present invention, a vehicle includes the brake dust collection device.
The braking dust collecting device provided by the embodiment of the invention has at least the following beneficial effects:
the air of mixed dust enters the inner chamber through the one-way air inlet valve under the action of the suction force through the vacuum source to dust is reserved in the dust collecting cavity under the action of the filter element, dust in the dust collecting cavity is isolated through the one-way air inlet valve, leakage of dust from the air inlet is avoided, secondary discharge of dust into the atmosphere is caused, meanwhile, intermittent start and stop can be realized by the vacuum source, and the collecting efficiency is improved.
Additional aspects and advantages of the invention 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 invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic illustration of the connection between a vacuum pump, a vacuum tank and two dust collectors of a brake dust collection device of the present invention;
FIG. 2 is a schematic view of the installation of a dust collector of the brake dust collector of the present invention;
FIG. 3 is a schematic view showing a dust collector of a brake dust collector according to the present invention;
fig. 4 is a schematic diagram of the operation control of the brake dust collection device according to the present invention.
Reference numerals:
a dust collector 100; an inner chamber 110; a dust collection chamber 111; a discharge chamber 112; an air inlet 120; an exhaust port 130; a filter element 140; unidirectional intake valve 150; a fixing frame 151; a valve core 152; a stop lever 1521; valve plate 1522; an elastic member 153; a suction nozzle 160; a socket 161; a horn 162; a capacitive proximity sensor 170; housing 180
A mounting bracket 200;
a brake caliper assembly 300;
a vacuum pump 400;
a vacuum tank 500; a vacuum sensor 510;
a check valve 600;
a solenoid valve 700.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
As shown in fig. 1, a brake dust collection device according to an embodiment of the present invention includes a dust collector 100 and a vacuum source.
The number of the dust collectors 100 corresponds to the number of wheels of the vehicle one by one, and in this embodiment, for a conventional four-wheel vehicle, four dust collectors 100 are provided, and four dust collectors 100 are provided on four wheels one by one, and in use, the dust collectors 100 are mounted on brake caliper assemblies 300 of the corresponding wheels, and in reference to fig. 2, the dust collectors 100 of this embodiment are connected with the brake caliper assemblies 300 through mounting brackets 200, so that for convenience in maintenance of the dust collectors 100 and collection of dust, the dust collectors 100 of this embodiment are detachably connected with the brake caliper assemblies 300, and the dust collectors 100 can be separately detached for maintenance.
As shown in fig. 3, the dust collector 100 of the present embodiment is provided with an inner chamber 110, and the inner chamber 110 is provided with an air inlet 120 and an air outlet 130 which are communicated with the outside, and a filter element 140 is provided in the inner chamber 110, wherein the filter element 140 filters dust, and the filter element 140 may adopt a filtering member such as sponge.
When the dust collector is installed, the air inlet 120 of the present embodiment is arranged opposite to the brake disc, the air outlet 130 is connected with a vacuum source through a connecting pipeline, and the vacuum source vacuumizes the inside of the dust collector 100 through the air outlet 130 to provide the adsorption force to the air inlet 120.
In order to realize quick assembly and disassembly, the exhaust port 130 is connected with the connecting pipeline through a quick connector.
As shown in fig. 3, the filter element 140 of the present embodiment divides the inner chamber 110 into a dust collection chamber 111 and an exhaust chamber 112, wherein the dust collection chamber 111 is communicated with the air inlet 120, and the exhaust chamber 112 is communicated with the air outlet 130, and when dust enters from the air inlet 120, the dust collection chamber 111 is isolated by the filter element 140.
As shown in fig. 3, the air inlet 120 of the present embodiment is provided with a unidirectional air inlet valve 150, and the flow direction of the unidirectional air inlet valve 150 is from outside to inside, and the unidirectional air inlet valve 150 isolates the dust in the dust collecting cavity 111, so as to avoid the leakage of the dust from the air inlet 120, and the secondary discharge of the dust into the atmosphere is caused.
The unidirectional air inlet valve 150 of the present embodiment includes a fixing frame 151, a valve core 152 and an elastic member 153, the fixing frame 151 is fixed in the dust collecting cavity 111 inside the air inlet 120, the valve core 152 is movably disposed inside the air inlet 120, the elastic member 153 acts between the inner side of the valve core 152 and the fixing frame 151, when the mixed dust gas passes through the air inlet 120 from outside to inside, the valve core 152 is pushed to move inwards by air pressure, the elastic member 153 is compressed, an overflow gap is formed between the valve core 152 and the air inlet 120, and when no air pressure exists, the valve core 152 is pushed to move outwards under the elastic force of the elastic member 153, so that the valve core 152 seals the air inlet 120.
The elastic member 153 of the present embodiment employs a spring, and in other embodiments, other elastic members may be employed.
Further, in order to improve the effect of dust adsorption, the air inlet 120 of the present embodiment is connected with a suction nozzle 160, one end of the suction nozzle 160 of the present embodiment is provided with a socket 161 sleeved with the air inlet 120, the other end of the suction nozzle 160 is provided with a horn 162 with a gradually increased aperture along a direction away from the dust collection cavity, so that the adsorption capacity of the air inlet 120 can be improved, the dust mixed gas is sucked into the dust collection cavity 111 as much as possible, and the valve core 152 is used for plugging the socket 161.
The cross section of case 152 of this embodiment is T type structure, case 152 is including locating the gag lever post 1521 in the cover joint 161, with the valve block 1522 of gag lever post 1521 inner connection, the external diameter of gag lever post 1521 of this embodiment is less than the internal diameter of cover joint 161, and gag lever post 1521 only plays spacing effect when shutoff, avoids case 152 excessive deviation, and the external diameter of valve block 1522 is greater than the internal diameter of cover joint 161, the interior port of valve block 1522 shutoff cover joint 161.
In other embodiments, other configurations of unidirectional intake valve 150 may be used, such as an elastomeric bead configuration.
In order to facilitate the determination of the dust amount in the dust collector 100, the dust collection chamber 111 is provided with a dust detection component, and the dust detection component is used for detecting the dust amount in the dust collection chamber 111, and the dust detection component of this embodiment adopts a capacitive proximity sensor 170, and determines the dust amount in the dust collector 100 according to the signal of the capacitive proximity sensor 170, and sends an alarm signal to an instrument to notify a user of maintenance to a designated place.
In order to facilitate cleaning of dust in the dust collecting cavity 111, the dust collector 100 of the present embodiment includes two housings 180, where the two housings 180 are detachably sleeved with each other to form an integral dust collector 100, and the two housings 180 of the present embodiment are connected together through threads, and in other embodiments, the two housings 180 may be connected by interference fit, etc.
The exhaust port 130 and the filter element 140 of the present embodiment are disposed in one of the housings 180, and the air inlet 120 is disposed in the other housing 180, so that the dust collection chamber 111 is formed by combining the two housings 180, and the dust can be recovered after the two housings 180 are opened.
When a user enters a store for maintenance, the quick-connection joint between the collector and the connecting pipeline and the wire harness terminal of the sensor are only required to be disconnected, the dust collector 100 is taken down from the inside of the wheel, the two shells 180 of the dust collector 100 are opened in a rotating mode, dust in the collector is poured into a designated recycling place, and the dust is reloaded back to the vehicle.
As shown in fig. 1, the vacuum source of the present embodiment includes a vacuum pump 400 and a vacuum tank 500, wherein the vacuum pump 400 is connected to the vacuum tank 500, the vacuum pump 400 is used for evacuating the vacuum tank 500, and the vacuum tank 500 is connected to the exhaust port 130 through a connection pipe, and the vacuum tank 500 evacuates the dust collector 100 to absorb dust generated from the brake.
Wherein the number of the vacuum pumps 400 and the vacuum tanks 500 may be varied according to the actual situation, the vacuum pumps 400 and the vacuum tanks 500 of the present embodiment are respectively provided with two vacuum tanks 500, and the two vacuum tanks 500 are respectively connected with the dust collectors 100 of the front/rear wheels, and the vacuum pumps 400 are respectively connected with the vacuum tanks 500 in a one-to-one correspondence, and the vacuum pumps 400 individually vacuumize the vacuum tanks 500.
In this embodiment, a check valve 600 is provided between the vacuum tank 500 and the vacuum pump 400 to improve the pressure maintaining stability of the vacuum tank 500, and the vacuum tank 500 is provided with a vacuum sensor 510 for detecting the internal vacuum.
In this embodiment, the electromagnetic valve 700 is disposed between the air outlet 130 and the vacuum tank 500, and the opening or closing of the electromagnetic valve 700 is controlled to control the start and stop of the dust collector 100, and meanwhile, the opening of the electromagnetic valve 700 is controlled to control the adsorption force of the dust collector 100, so as to adapt to different working conditions of the brake.
In this embodiment, four solenoid valves 700 are used to control each dust collector 100, and each dust collector 100 is equipped with a capacitive proximity sensor 170, so that the influence of single-point failure on dust absorption efficiency can be reduced, and the emission of brake dust into air can be reduced to the greatest extent.
In other embodiments, one vacuum pump 400 and vacuum tank 500 may be reduced, the volume of vacuum tank 500 may be increased, and solenoid valve 700 may be reduced to two, as may the separate front/rear wheel control, which may be less costly, but the overall system potential may be less.
In other embodiments, the vacuum pump 400, solenoid valve 700, sensor, dust collector 100, etc. may be integrated together to form a compact vacuum cleaner, which may be equally desirable, but the integrated vacuum cleaner is relatively bulky and disadvantageous for installation inside a vehicle wheel, particularly a front wheel.
As shown in fig. 4, the present embodiment further includes a controller, which is simultaneously connected with the brake, the meter, the capacitive proximity sensor 170, the vacuum sensor 510, the vehicle, the vacuum pump 400, and the electromagnetic valve 700 in signal connection during assembly, and receives a vehicle speed signal, a brake pressure signal, a vacuum signal, and a capacitive proximity sensor 170 signal, and controls the electromagnetic valve 700 to be opened or closed according to the vehicle speed signal and the brake pressure signal; according to the vacuum degree signal, the vacuum pump 400 is controlled to be turned on or off; the amount of dust in the dust collector 100 is determined based on the signal from the capacitive proximity sensor 170, and an alarm signal is sent to the meter to notify the user of maintenance to the designated location.
The embodiment also provides a control method for reducing brake dust emission, as shown in fig. 4, and the specific control method is as follows:
and (3) establishing vacuum degree:
after the automobile is electrified, the vacuum pump 400 starts to work, vacuum degree is built in the system, vacuum energy is stored in the vacuum tank 500, when the controller detects that the vacuum degree value fed back by the vacuum degree sensor 510 arranged on the vacuum tank 500 reaches the closing pressure, for example, 70kPa, the vacuum pump 400 can be calibrated according to actual requirements, and the vacuum pump 400 is closed; when the controller detects that the vacuum level in the vacuum tank 500 is lower than the opening threshold, for example, 30kPa, calibration can be performed according to actual requirements, and the vacuum pump 400 is turned on until the vacuum level in the vacuum tank 500 reaches the closing threshold, and the vacuum pump 400 is turned off.
Braking dust absorption:
the controller receives a vehicle speed signal and a brake pressure signal, and when the vehicle speed is equal to 0 or the brake pressure is equal to 0, the automobile does not generate brake dust, and dust absorption is not needed; when the vehicle speed is greater than 0 and the braking pressure is greater than 0, the controller sends an opening command, the electromagnetic valve 700 is opened, and dust generated by the brake is absorbed; when the vehicle speed is 0 again, the solenoid valve 700 is closed.
According to the embodiment, the opening degree of the electromagnetic valve 700 can be calculated according to the real-time vehicle speed and the magnitude of the braking pressure, when the vehicle speed is relatively large, the required braking pressure is also increased, the opening degree of the electromagnetic valve 700 is increased, and when the vehicle speed is relatively small, the required braking pressure is also reduced, and the opening degree of the electromagnetic valve 700 is reduced; when emergency braking is required, the required braking pressure increases, and the opening degree of the solenoid valve 700 increases.
As can be seen from the friction plate abrasion test, the friction plate abrasion test shows that the friction plate abrasion test is carried out at a high vehicle speedWhen the temperature of the brake disc is higher, the abrasion loss of the NAO friction material is larger, so that a judgment logic can be made, and when the vehicle speed is less than 50km/h, the electromagnetic valve is opened by 50%; when the speed of the vehicle is greater than 50km/h and less than 100km/h, the electromagnetic valve is opened by 80 percent; when the vehicle speed is greater than 100km/h, the electromagnetic valve 700 is opened by 100%, other proportions can be set, and the adjustment is required according to the characteristics of the friction plate. Brake disc temperature estimation: t=0.5×m Vehicle with a frame ×（（v 1 /3.6）²-（v 2 /3.6）²）×K×0.5/（m Disk X C), wherein t—brake disc temperature ℃; m cars-vehicle design load (kg) (most commonly used case); v1-initial speed (km/h); v2-final speed (km/h); k, front/rear brake distribution coefficient, respectively judging front axle or rear axle temperature; m disc-brake disc friction ring mass (kg); c-specific heat capacity (J/kg/. Degree.C.) of brake disc material; the temperature model is suitable for being used as a basis for assisting in judging the opening degree of the electromagnetic valve under the continuous braking working condition, and according to the single brake disc temperature rise and the continuous braking times, the temperature of the current brake disc is estimated by considering the heat dissipation coefficient (for example, 10%), and when the estimated brake disc temperature is more than 300 ℃, the electromagnetic valve 700 can be directly opened to 100%. The brake pressure is less correlated with the wear amount, and is used only for judging whether or not to perform the start-up dust absorption.
When the vehicle speed is greater than 0 and the braking pressure is equal to 0, the electromagnetic valve 700 is turned off in a delayed manner, the delay time can be adjusted according to the requirement, so that dust generated by the brake can be fully absorbed, the time for the electromagnetic valve 700 to be turned off in a delayed manner is determined according to the vehicle speed, when the vehicle speed is greater, the delay time can be increased, and when the vehicle speed is smaller, the delay time can be reduced.
Solenoid valve 700 delays closing time: t= (2×pi×3.6×r×10)/v, where R is the wheel rolling radius; v-vehicle speed (km/h).
Dust collection and content judgment:
under the action of the system vacuum degree, the suction nozzle 160 of the dust collector 100 can generate strong suction force, air mixed with dust enters the dust collector 100 through the one-way air inlet valve 150 under the action of the suction force, dust is reserved in the dust collecting cavity 111 under the action of the high-density filter element 140, dust drop is gradually formed, when the collected dust amount reaches the alarm height of the capacitance proximity sensor 170, the capacitance proximity sensor 170 sends an alarm signal to the controller, and the controller sends an alarm through an instrument to inform a user to a designated place for maintenance.
The control method of the invention can collect the dust generated by the brake pad when the automobile brakes to the greatest extent, improve the air quality, accurately judge when to start absorbing the brake dust and the quantity required to be absorbed according to the running state of the automobile, send a signal to the instrument when the dust collector 100 is full of the dust, inform a driver to store for maintenance, control the disposal of the dust and avoid secondary discharge into the atmosphere.
The embodiment also provides a vehicle, which adopts the brake dust collecting device. Specifically, the vehicle may be a private car, such as a sedan, SUV, MPV, or pick-up, or the like. The vehicle may also be an operator vehicle such as a minibus, bus, minivan or large trailer, etc. The vehicle can be an oil vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, the vehicle can be a hybrid vehicle or a pure electric vehicle.
The invention not only can independently control the dust collection work of the front and rear wheels according to the difference of the front and rear axle loads generated by the design scheme of the whole vehicle, but also can independently control the working capacities of the left and right dust collectors 100 according to signals of a rotation angle sensor, a yaw angle sensor and the like on the vehicle, thereby realizing the effect of energy conservation.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. A brake dust collection device, comprising:
the dust collector is provided with at least one air inlet, an air outlet, an inner cavity and a filter element arranged in the inner cavity, the filter element divides the inner cavity into a dust collecting cavity and an air outlet cavity, the dust collecting cavity is communicated with the air inlet, the air outlet cavity is communicated with the air outlet, and the air inlet is provided with a one-way air inlet valve;
and the vacuum source is connected with the exhaust port.
2. The brake dust collection device of claim 1, wherein:
the unidirectional air inlet valve comprises a fixed frame fixed on the inner side of the air inlet, a valve core movably arranged on the inner side of the air inlet, and an elastic piece acting on the fixed frame and the inner side of the valve core, wherein the elastic piece is used for enabling the valve core to block the air inlet.
3. The brake dust collection device of claim 1, wherein:
the dust collecting device is characterized in that the air inlet is provided with a suction nozzle, one end of the suction nozzle is provided with a sleeve joint sleeved with the air inlet, and the other end of the suction nozzle is provided with a horn head with the aperture gradually increasing along the direction away from the dust collecting cavity.
4. The brake dust collection device of claim 1, wherein:
the dust collector comprises two shells which are mutually detachable, the exhaust port and the filter element are arranged on one shell, and the air inlet is arranged on the other shell.
5. The brake dust collection device of claim 1, wherein:
the dust collection cavity is provided with a dust detection component, and the dust detection component is used for detecting the dust amount in the dust collection cavity.
6. The brake dust collection device of claim 1, wherein:
the vacuum source comprises at least one vacuum pump and at least one vacuum tank, the vacuum pump is connected with the vacuum tank, the vacuum tank is connected with the exhaust port, the exhaust port is connected with an electromagnetic valve, and a one-way valve is arranged between the vacuum tank and the vacuum pump.
7. A control method suitable for the brake dust collection device according to any one of claims 1 to 6, characterized in that:
the control method comprises the following steps:
and controlling the vacuum source to vacuumize at least one dust collector according to the vehicle speed and the braking pressure.
8. The control method according to claim 7, characterized in that:
the controlling the vacuum source to vacuumize at least one dust collector according to the vehicle speed and the braking pressure comprises the following steps:
when the vehicle speed is greater than 0 and the braking pressure is greater than 0, controlling the vacuum source to start;
and when the vehicle speed is greater than 0 and the braking pressure is equal to 0, the vacuum source is closed in a delayed mode.
9. The control method according to claim 7, characterized in that:
the vacuum source comprises at least one vacuum pump and at least one vacuum tank, the vacuum pump is connected with the vacuum tank, and the exhaust port is connected with the vacuum tank through an electromagnetic valve;
the control method further includes:
when the vacuum degree value of the vacuum tank reaches a first preset value, the vacuum pump is controlled to be closed;
when the vacuum degree value of the vacuum tank is detected to be lower than a second preset value, controlling the vacuum pump to start;
the controlling the vacuum source to evacuate at least one dust collector according to the vehicle speed and the brake pressure further comprises:
the dust collector is individually controlled to be vacuumized by the electromagnetic valve.
10. A vehicle, characterized in that: comprising a brake dust collection device according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311709695.6A CN117815809A (en) | 2023-12-13 | 2023-12-13 | Brake dust collection device, control method and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311709695.6A CN117815809A (en) | 2023-12-13 | 2023-12-13 | Brake dust collection device, control method and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117815809A true CN117815809A (en) | 2024-04-05 |
Family
ID=90512494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311709695.6A Pending CN117815809A (en) | 2023-12-13 | 2023-12-13 | Brake dust collection device, control method and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117815809A (en) |
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2023
- 2023-12-13 CN CN202311709695.6A patent/CN117815809A/en active Pending
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