CN209535029U - A kind of jet-propelled complemental brake system and automobile - Google Patents
A kind of jet-propelled complemental brake system and automobile Download PDFInfo
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- CN209535029U CN209535029U CN201920050742.3U CN201920050742U CN209535029U CN 209535029 U CN209535029 U CN 209535029U CN 201920050742 U CN201920050742 U CN 201920050742U CN 209535029 U CN209535029 U CN 209535029U
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Abstract
The utility model provides a kind of jet-propelled complemental brake system and automobile, is related to the braking system field of vehicle.Wherein, this brake apparatus includes wheel brake, transmission component, air compression assembly, clutch, jet pipe, controller.Transmission component is sequentially connected in wheel brake, and air compression assembly includes the air compressor and air accumulator being connected.Clutch is used to cut off and transmit the power of transmission component to air compressor.Jet pipe is arranged between air accumulator and the fumarole of car surface, and jet pipe is equipped with snifting valve.Controller is electrically connected with clutch, air compression assembly and snifting valve respectively.The utility model also provides a kind of automobile for possessing this complemental brake system.The utility model, which passes through, is arranged in the complemental brake system of automobile, when automobile needs to brake, can upwards jet and/or to running car same direction jet to increase brake force.
Description
Technical field
The utility model relates to the braking system field of vehicle, in particular to a kind of jet-propelled complemental brake system,
Method and automobile.
Background technique
Braking system is the major subsystems of automobile, can be used to control the stopping of automobile, deceleration, keep certain vehicle
Speed is the important system of traffic safety, is the essential subsystem of automobile.But the maximum braking force of brake system of car is
It is limited by the adhesive force (maximal friction of automobile and ground) between automobile and ground, i.e. the maximum system of brake system of car
Power if it exceeds adhesive force between automobile and ground, automotive wheel will locking, so that automobile is lost course changing control ability, or
There is whipping and the situations such as turns around in person, and brings Exploration on Train Operation Safety.
Currently, patent CN100430255C discloses a kind of jet propulsion system for motor vehicle, driven using vehicle prime movers
Air compressor is sprayed from the spout on car body to increase the brake force of automobile after compressing air.But it is this directly from vapour
The engine torque extraction of vehicle can additionally increase the load of engine, not energy-efficient.
Utility model content
The utility model provides a kind of jet-propelled complemental brake system, method and automobile, it is desirable to provide one kind does not increase
The auxiliary braking system of the energy consumption of engine.
In order to solve the above technical problems, the utility model provides a kind of jet-propelled complemental brake system, comprising:
Wheel brake；
Transmission component is sequentially connected in the wheel brake；
Air compression assembly, including the air compressor and air accumulator being connected, the compression of the air compressor generation
Air, which enters in the air accumulator, to be stored；
Clutch is arranged between the air compressor and the transmission component, for cutting off and transmitting the transmission
The power of component is to the air compressor；
Jet pipe is arranged between the air accumulator and the fumarole of car surface, and the jet pipe is equipped with spray
Air valve；
Controller is electrically connected with the clutch, the air compression assembly and the snifting valve respectively.
As advanced optimizing, the transmission component include be mounted on the wheel brake first gear and with it is described
The second gear of first gear engagement, the output shaft of the second gear is connected with the clutch, the transmission component to
The air compressor provides power.
As advanced optimizing, be connected with multiple jet pipes on the air accumulator, car surface be equipped with it is described
The compatible multiple fumaroles of jet pipe.
As advanced optimizing, the headstock and the tailstock of automobile are equipped with the fumarole, the upward jet of the fumarole, to
The same direction jet of running car and/or to car body two sides jet.
As advanced optimizing, the spray angle of the fumarole of headstock is at -90 °~0 °；The jet angle of the fumarole of the tailstock
Degree is at 0 °~90 °.
As advanced optimizing, each jet pipe is provided with a snifting valve.
As advanced optimizing, a transmission component, a clutch, one are provided in each of automobile wheel brake
Air compressor, multiple air compressors are connected in the air accumulator.
The utility model also provides a kind of automobile, includes above-mentioned jet-propelled complemental brake system.
By using above-mentioned technical proposal, the utility model can obtain following technical effect:
A kind of jet-propelled complemental brake system provided by the utility model can be to garage when automobile needs to brake
The same direction jet sailed to increase braking effect, or upwards jet to increase the downward pressure of automobile to increase adhesive force,
To increase brake force.In addition to this, the utility model also provides a kind of jet-propelled auxiliary braking method, first judges automobile
Driving status whether meet braking condition, jet-propelled auxiliary device is then controlled by controller, can be closed according to demand
Wherein one or more clutches, or open one or more snifting valves and braked, more reasonablely using former braking system with
Auxiliary braking system realizes Vehicle Stability Control.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the partial structure diagram for the jet-propelled complemental brake system that embodiment 1 provides；
Fig. 2 is the module map for the jet-propelled complemental brake system that embodiment 1 provides；
Fig. 3 is automobile jet direction schematic diagram.
Icon: 1- wheel；2- brake disc；3- transmission component；31- first gear；32- second gear；4- clutch；5- is empty
Air compressor；6- controller；7- air accumulator；8- snifting valve；9- fumarole；10- automobile.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:
Embodiment 1
Shown in Fig. 1, Fig. 2, the present embodiment provides a kind of jet-propelled complemental brake system, including wheel brake 2, transmission
Component 3, air compression assembly, clutch 4, jet pipe, controller 6.
Wheel brake 2, to generate the component for hindering vehicle movement or movement tendency brake force, the wheel 1 of each car
On be each equipped with wheel brake 2, wheel brake 2 can be rotated with the rotation of wheel.And when braking, pass through caliper
Brake disc 2 is clamped, the moment of friction for preventing vehicle wheel rotation is generated, realizes braking.
Transmission component 3, transmission connection pass through transmission component 3 in the wheel brake 2, by the power of wheel brake 2
It is transmitted to air compressor 5, air compressor 5 is made to carry out air compression.
Air compression assembly includes the air compressor 5 and air accumulator 7 being connected, the pressure that the air compressor 5 generates
Contracting air, which enters in the air accumulator 7, to be stored, and air compressor 5 and air accumulator 7 may be provided at chassis or the vehicle frame of automobile 10
On.
It should be noted that commercially available micro-air compressor can be used in the air compressor 5 used in the present embodiment
5, contraction principle is the prior art, here with regard to no longer being repeated.In the preferred embodiment of the utility model, net weight is selected
0.5~1MPa of value of pressure in the micro-air compressor 5 of 2~4kg, compression；Compression flow is 0.55~37L/min.Choosing
With the small gas storage tank 7 of 10~40L, open ended air pressure value maximum value is 1.0MPa.Select 5 He of micro-air compressor
Small gas storage tank 7 will not excessively increase the weight of car body, guarantee traffic safety.
Clutch 4 is arranged between the air compressor 5 and the transmission component 3, for cutting off and transmitting the biography
The power of dynamic component 3 is to the air compressor 5.When clutch 4 is closed, air compressor 5 and transmission component 3 are sequentially connected,
Air compressor 5 is delivered power to, driving air compressor 5 carries out air compression and compressed gas is stored in air accumulator 7
It is interior.When clutch 4 disconnects, air compressor 5 and transmission component 3 are disconnected, and air compressor 5 is in state of not doing work.Air accumulator 7
Capacity be limited, therefore only need just to need to be closed when 7 gas-storing capacity of air accumulator is lower than preset value the then driving of clutch 4
Air compressor 5 carries out air compression and compressed gas is stored in air accumulator 7.It should be noted that clutch 4 here
Not referring to clutch in itself that be configured in 10 system of automobile, (clutch cuts off and passes between engine and automotive transmission
The component of graduating power), it is the clutch 4 in order to cooperate the brake apparatus of the utility model to be additionally arranged.In the present embodiment, from
Clutch 4 is electric clutch, and when driver steps on brake pedal, the closure and opening of clutch 4, the electricity are controlled by controller 6
The Electric PTO clutch of model Warner 5215-44 can be selected in dynamic clutch, but not limited to this, it can as long as meeting
Its closure is controlled by controller 6 and is opened.
As shown in Figure 1, as advanced optimizing, the transmission component 3 includes and is mounted on the of the wheel brake 2
One gear 31 and the second gear 32 engaged with the first gear 31, the output shaft and the clutch of the second gear 32
4 are connected, and the transmission component 3 is that the air compressor 5 provides power.First gear 31 is mounted on brake disc 2 far from vehicle
The side of wheel 1, when brake disc 2 is rotated with wheel 1, first gear 31 is rotated, the second gear 32 engaged with first gear 31
Also it rotates with it.The power transmission transmitted from 32 output shaft of second gear to air compressor 5, is made sky by the clutch 4 of closure
Air compressor 5 carries out air compression.
Jet pipe is arranged between the fumarole 9 on 10 surface of the air accumulator 7 and automobile, and the jet pipe is equipped with
Snifting valve 8, the snifting valve 8 are used to control the injecting time and injection pressure of fumarole 9.Jet pipe is according to being sprayed
Orientation is arranged in inside car in an orderly manner.
As shown in Fig. 2, being connected with multiple jet pipes, 10 table of automobile on the air accumulator 7 as advanced optimizing
Face is equipped with multiple fumaroles 9 compatible with the jet pipe.Further, each jet pipe is respectively provided with
There is a snifting valve 8.Therefore, one or more snifting valves 8 can be opened according to demand to be braked, without all jets
Hole 9, which is switched on, achieves that 10 stability control of automobile.
As advanced optimizing, the headstock and the tailstock of automobile 10 are equipped with the fumarole 9, the spray upwards of fumarole 9
Gas, the same direction jet travelled to automobile 10 and/or to 10 car body two sides jet of automobile.Fumarole 9 is the surface of automobile 10
Aperture, the position of the original preceding grid of automobile 10 can be located at by being located at headstock and the tailstock or fumarole 9, not influence automobile 10
Aesthetics.
It should be noted that the setting of fumarole 9 is in headstock or the tailstock, the position of fumarole can be above headstock, side
Face or front, or positioned at the upper surface of tailstock, side or rear.The upward jet of automobile 10 is to increase the downward pressure of automobile 10
To increase adhesive force, the same direction jet travelled to automobile 10 is to increase the brake force opposite with vehicle traveling direction, to vapour
Safety when automobile 10 is braked can be improved in 10 car body two sides jet of vehicle.
As advanced optimizing, fumarole 9 is generally located on above headstock and front, or setting in the upper surface of tailstock and
Below.Therefore, the spray angle for defining the upward jet of fumarole 9 is 0 °, and clockwise direction spray angle is positive, counterclockwise
It is negative, therefore the spray angle of the fumarole 9 of headstock is at -90 °~0 °；The spray angle of the fumarole 9 of the tailstock is at 0 °~90 °.
Injection direction effect is as shown in figure 3, Fig. 3 is jeting effect figure when car needs to brake, the same direction that can be travelled to car
Jet is to increase braking effect, or jet is upwards to increase the downward pressure of car to increase adhesive force, to increase braking
Power.In addition to this, fumarole 9 can also jet backward, reduce the acceleration time of car.It is understood that the automobile is also
Including motor vehicles such as car, trucies, it can refer to car injection direction and carry out the setting of fumarole 9.
It is further preferable that in the preferred embodiment of the utility model, in each of automobile 10 wheel brake 2
Equipped with a transmission component 3, a clutch 4, an air compressor 5, multiple air compressors 5 are connected to the storage
In gas tank 7.By the way that multiple groups brake apparatus is arranged, one guarantees have enough brake force exportable, second is that ought wherein one group of braking fill
In the case where setting failure, the brake apparatus of remaining group also can guarantee that the jet-propelled complemental brake system of automobile 10 can be transported normally
Row.
It is further preferable that matching in any two wheel brake 2 of automobile 10 in the utility model preferred embodiment
It is connected in the air accumulator 7 there are two air compressor 5, is furnished in other two wheel brake 2 of automobile 10
Other two air compressor 5 is connected in another described air accumulator 7, further avoid not because air accumulator 7 occurs therefore
Hinder the problem for causing jet-propelled complemental brake system out of service.
Controller 6 is electrically connected with the clutch 4, the air compression assembly and the snifting valve 8 respectively.It can be with
Understand be the ECU that can be had by 10 system of automobile of controller 6 here, without from newly configuring new controller 6.
Embodiment 2
The present embodiment provides a kind of automobiles 10, include such as above-mentioned jet-propelled complemental brake system.Jet-propelled auxiliary braking
The structure of device is referring to the content in embodiment 1.The automobile 10 can be by the same direction jet that travels to automobile 10 to increase
Braking effect, or jet is upwards to increase the downward pressure of automobile 10 to increase adhesive force, so that car assisted 10 are made
It is dynamic, keep driving conditions safer.
The present embodiment also provides a kind of methods of car assisted 10 braking, using above-mentioned jet-propelled complemental brake system,
The structure of jet-propelled complemental brake system is referring to the content in embodiment 1, comprising the following steps:
S1, the controller 6 receives the brake signal about brake pedal, wherein the brake signal includes that driver steps on
The movement of brake-apply；
S2, the controller 6 control 4 device of clutch closure in response to the brake signal, transmit the dynamic of the transmission component
Power makes 5 compressed air of air compressor and compressed air is sent into the air accumulator 7 to the air compressor 5, and controls
It makes the snifting valve 8 to open, compressed air sprays car assisted 10 braking from the fumarole 9.
It is braked at any time, as long as driver tramples brake pedal, is received by controller 6 and trample braking
The brake signal of pedal, so that it may start jet-propelled complemental brake system and auxiliary braking is carried out to automobile.This starting method and control
Method is very easy, easily operated, which can even replace original braking system in some embodiments
Automobile is braked.
In another embodiment, using the jet-propelled complemental brake system as the auxiliary braking system of original braking system
System only can just will start jet-propelled complemental brake system auxiliary vehicle braking in the case where meeting braking condition, remaining time is in
Closed state utilizes former braking system and auxiliary braking system more reasonablely.Therefore the method for car assisted 10 braking, packet
Include following steps:
S21, judges whether the air supply of the air accumulator 7 is greater than preset air magnitude, is, then enters S2, no, then
When driver steps on brake pedal, the controller 6 controls the clutch 4 and is closed, and transmits the power of the transmission component 3 extremely
The air compressor 5 makes 5 compressed air of air compressor and compressed air is sent into the air accumulator 7 until being greater than
Preset air magnitude.General preset air magnitude is accommodate maximum air capacity volume 70%~90% of air accumulator 7, can
The model for the air accumulator 7 arranged in pairs or groups according to each car is set.
S22 judges whether to meet braking condition, if so, into S25, if it is not, then entering S23.
As advanced optimizing, the braking condition is ice-patch surface, snowy road surface or sand ground road surface.Especially for ice
Face road surface and snowy road surface, road surface and the frictional force of wheel 1 are small, accident often occur because braking not in time, therefore encounter this
When surface conditions, braking is required to carry out auxiliary braking every time, increases brake force, it is ensured that traffic safety.
It should be noted that judging whether to meet braking condition, it can select and artificially judge surface conditions, pass through driver
Adjust the pressure progress auxiliary braking for trampling brake plate.Or it can select in controller 6 and relevant image procossing dress is installed
It sets, after the pavement image of the pavement image and input that are taken by automobile data recorder compares, as long as meeting braking condition
The case where, auxiliary braking can be carried out when driver tramples brake plate.Image processing apparatus image procossing principle is existing skill
Art, here with regard to not repeated.
S23 judges that automobile 10 is current whether in improper acceleration mode, if so, into S24, if it is not, then returning to
S21。
As advanced optimizing, in step S23, the improper acceleration mode is the vehicle speed value of automobile 10 in 20km/h
Above or the acceleration of automobile 10 is -1m/s2~-80m/s2.Automobile 10 is located under high-speed travel state, under emergency brake car state or
It saunters under state after person, often because braking not in time, leads to the generation of accident, therefore judge that automobile 10 is current whether in improper
Acceleration mode, then automobile 10 brake very necessary.
S24 is trampled whether pressure value is greater than preset pressure value by what pressure sensor judged brake pedal, if so,
Into S25, if it is not, returning to S21.Pressure value of being trampled for brake pedal is the pressure sensing by the way that brake pedal is arranged in
What device was acquired, which is transmitted to entire car controller 6 for pressure value by rigid line.Entire car controller 6 exists
After pressure value is trampled in reception, this is trampled and is braked again after being compared between pressure value and preset pressure value.Pressure
Commercial product can be used in sensor, its working principle is that the prior art, here just without repeating.
In general, foot is placed on brake pedal by driver, to keep a posture that can be braked at any time,
In this case, driver be applied to brake pedal pressure it is not too big, be just able to maintain normal driving in this way.Therefore, work as system
When being trampled pressure value greater than the preset pressure value of dynamic pedal, shows that driver is applied with biggish pressure to the brake pedal
Power, i.e. driver brake automobile 10, by judging to be trampled the size of pressure value, to determine whether being assisted
Braking.
S25, the one or more snifting valves 8 of control are opened, and compressed air sprays car assisted 10 from the fumarole 9
Braking.
As advanced optimizing, the preset pressure value includes first threshold and second threshold.It is understood that here
First threshold and the numerical value of second threshold different threshold datas can be obtained by many experiments according to the size of vehicle.
Pressure value is trampled greater than the first threshold and less than the second threshold, control 1 when detection brake pedal
~4 snifting valves 8 are opened.In this case, illustrate that the automobile 10 needs auxiliary braking, but situation is not urgent, it can be according to reality
Situation is opened a small amount of fumarole 9 and is braked.
Pressure value is trampled greater than the second threshold when detection brake pedal, and control is greater than 4 snifting valves 8 and opens.
In this case, automobile 10 should belong to emergency brake car state, need to open more fumaroles 9, as far as possible increase brake force, side
Automobile 10 is helped to stop within the shortest time.
S26, speed is less than pre-set velocity value after braking, closes snifting valve 8, returns to S21.General pre-set velocity value is 0~
3m/s is equivalent to car and has stopped or under slowly driving status, so that it may and it closes snifting valve 8 and stops jet,
Into next circulation.
Auxiliary braking mode provided by the utility model have real-time detection, judge automatically, be swift in motion, brake force it is strong
The features such as, it can fully ensure that the vehicle and personnel safety in driving conditions.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of jet-propelled complemental brake system characterized by comprising
Wheel brake；
Transmission component is sequentially connected in the wheel brake；
Air compression assembly, including the air compressor and air accumulator being connected, the compressed air of the air compressor generation
Into being stored in the air accumulator；
Clutch is arranged between the air compressor and the transmission component, for cutting off and transmitting the transmission component
Power to the air compressor；
Jet pipe is arranged between the air accumulator and the fumarole of car surface, and the jet pipe is equipped with snifting valve；
Controller is electrically connected with the clutch, the air compression assembly and the snifting valve respectively.
2. jet-propelled complemental brake system according to claim 1, which is characterized in that the transmission component includes being mounted on
The first gear of the wheel brake and the second gear engaged with the first gear, the output shaft of the second gear with
The clutch is connected, and the transmission component provides power to the air compressor.
3. jet-propelled complemental brake system according to claim 1, which is characterized in that be connected on the air accumulator multiple
The jet pipe, car surface are equipped with multiple fumaroles compatible with the jet pipe.
4. jet-propelled complemental brake system according to claim 3, which is characterized in that the headstock and the tailstock of automobile are equipped with
The fumarole, the upward jet of the fumarole, to the same direction jet of running car and/or to two side spray of car body
Gas.
5. jet-propelled complemental brake system according to claim 3, which is characterized in that the spray angle of the fumarole of headstock
At -90 °~0 °；The spray angle of the fumarole of the tailstock is at 0 °~90 °.
6. jet-propelled complemental brake system according to claim 3, which is characterized in that each jet pipe is respectively provided with
There is a snifting valve.
7. jet-propelled complemental brake system according to claim 1, which is characterized in that each of automobile wheel braking
A transmission component, a clutch, an air compressor are provided on disk, multiple air compressors are connected to described in one
In air accumulator.
8. a kind of automobile, which is characterized in that include jet-propelled complemental brake system as described in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050742.3U CN209535029U (en) | 2019-01-11 | 2019-01-11 | A kind of jet-propelled complemental brake system and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920050742.3U CN209535029U (en) | 2019-01-11 | 2019-01-11 | A kind of jet-propelled complemental brake system and automobile |
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| CN209535029U true CN209535029U (en) | 2019-10-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624939A (en) * | 2019-01-11 | 2019-04-16 | 厦门理工学院 | A kind of jet-propelled complemental brake system, method and automobile |
| US11072381B2 (en) * | 2018-12-27 | 2021-07-27 | Ferrari S.P.A. | High-performance car with gas pushers |
-
2019
- 2019-01-11 CN CN201920050742.3U patent/CN209535029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11072381B2 (en) * | 2018-12-27 | 2021-07-27 | Ferrari S.P.A. | High-performance car with gas pushers |
| CN109624939A (en) * | 2019-01-11 | 2019-04-16 | 厦门理工学院 | A kind of jet-propelled complemental brake system, method and automobile |
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