CN202368566U - Pneumatically braked vehicle and vehicle brake control device thereof - Google Patents
Pneumatically braked vehicle and vehicle brake control device thereof Download PDFInfo
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- CN202368566U CN202368566U CN2011204617962U CN201120461796U CN202368566U CN 202368566 U CN202368566 U CN 202368566U CN 2011204617962 U CN2011204617962 U CN 2011204617962U CN 201120461796 U CN201120461796 U CN 201120461796U CN 202368566 U CN202368566 U CN 202368566U
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Abstract
The utility model discloses a vehicle brake control device and a pneumatically braked vehicle with the vehicle brake control device. The vehicle brake control device comprises a brake pedal, a brake master pump, a front wheel brake control loop, a rear wheel brake control loop, an air compressor, an air dryer and a protective valve, wherein the brake master pump is controlled by the brake pedal and is provided with an upper cavity and a lower cavity; the air dryer is connected with an air outlet end of the air compressor; the protective valve is connected with an air outlet end of the air dryer; a front brake air storage cylinder of the front wheel brake control loop is in gas circuit connection to an air outlet end of the protective valve; and a pressure adjusting valve is also arranged between the protective valve and the front brake air storage cylinder for adjusting brake pressure of the front wheel brake control loop. According to the vehicle brake control device and the pneumatically braked vehicle, the problem of wheel jitter caused by wheel lockup due to increased brake force after a disk brake is used in the pneumatically braked vehicle provided with no ABS (Anti-lock Brake System) in a replacing way can be quickly solved.
Description
Technical field
The utility model relates to the vehicle brake technology field, relates in particular to a kind of pneumatic brake vehicle that is applicable to the vehicle brake control apparatus of pneumatic brake vehicle and has this vehicle brake control apparatus.
Background technology
Along with the development of passenger vehicle technology, this new braking technology of plate disc brake (or claiming disc brake) is progressively accepted by the user, requires the user of installation plate disc brake more and more.The tradition bus is all installed drum brake mechanism, does not generally adorn ABS (rules and regulations require dress ABS except).When traditional bus customer requirements changes the outfit plate disc brake (being generally front axle); When the plate disc brake braking-force ratio drum brake mechanism that changes the outfit is big; The glancing impact wheel lockup; Tire and road surface become cliding friction by friction of rolling, when coefficient of road adhesion is enough big, the phenomenon of wheel shake can take place.
As shown in Figure 1; Fig. 1 is the layout scheme drawing of the braking force control system of example with the front-wheel for prior art, comprises master brake cylinder 4, four-loop protection valve 5, preceding braking air tank 6, air dryer 7, air compressor 8 and the connecting line of compressed air brake cylinder 1, rapid release valve 2, brake pedal 3, brake pedal 3 controls.The outlet side of braking air tank 6 before wherein master brake cylinder 4 cavity of resorption inlet ends 12 insert, the inlet end gas circuit of preceding braking air tank 6 is connected in one of them outlet side of four-loop protection valve 5.
The principle of work of its control of braking is: when chaufeur is stepped on brake pedal 3; Gas gets into compressed air brake cylinder 1 through air dryer 7, four-loop protection valve 5, preceding braking air tank 6, master brake cylinder 4 cavity of resorptions, rapid release valve 2 successively by the direction of air compressor 8 shown in arrow among Fig. 1, reaches the purpose of front wheel brake.Behind loosen the brake 3, the gas in the compressed air brake cylinder 1 leads to atmosphere through rapid release valve 2 exhausr ports (not marking among the figure), the braking return.
The structure of trailing wheel brake circuit is similar with front-wheel with principle, and this moment, the brake-pressure of front axle and back axle equated that the size of pressure is relevant by the pressure unloading of air dryer 7.But when front axle or back axle changed the outfit plate disc brake, by aforesaid reason, the phenomenon of wheel shake can take place to take place because of the tire locking in glancing impact.Solve this problem and can only use less compressed air brake cylinder 1 usually instead, but work capacity is big, cost is high.
The utility model content
The purpose of the utility model is, a kind of vehicle brake control apparatus is provided, and at high speed solves the pneumatic brake vehicle that is unkitted ABS in the prior art and uses behind the plate disc brake technical matters that the wheel shake takes place because of the tire locking instead.
Another purpose of the utility model is, a kind of pneumatic brake vehicle with the utility model vehicle brake control apparatus is provided.
For realizing above-mentioned purpose, the technical scheme of the utility model is following:
A kind of vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The preceding braking air tank gas circuit of said front wheel brake control loop is connected in an outlet side of said protective valve; The trailing wheel of said vehicle is a drum brake mechanism; Said vehicle front-wheel is a plate disc brake, also is provided with the pressure regulating valve in order to the brake-pressure of regulating said front wheel brake control loop between said protective valve and the said preceding braking air tank.
The vehicle brake control apparatus of the utility model, preferred, said protective valve is a four-loop protection valve.
The vehicle brake control apparatus of the utility model, preferred, said pressure regulating valve is arranged at the inlet end of said preceding braking air tank.
The vehicle brake control apparatus of the utility model, preferred, be connected with rapid release valve between two the preceding compressed air brake cylinders of said preceding brake servo circuit and the cavity of resorption of said master brake cylinder.
The vehicle brake control apparatus of the utility model, preferred, said protective valve is double loop protective valve or multiloop protective valve.
The technical scheme of the utility model can also be:
A kind of vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The back braking air tank gas circuit of said trailing wheel brake servo circuit is connected in an outlet side of said protective valve; Said vehicle front-wheel is a drum brake mechanism; The trailing wheel of said vehicle is a plate disc brake, also is provided with the pressure regulating valve in order to the brake-pressure of regulating said trailing wheel brake servo circuit between said protective valve and the said back braking air tank.
A kind of vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The preceding braking air tank gas circuit of said front wheel brake control loop is connected in first outlet side of said protective valve; The back braking air tank gas circuit of said trailing wheel brake servo circuit is connected in second outlet side of said protective valve; Said vehicle front-wheel and trailing wheel are plate disc brake; Be provided with first pressure regulating valve between said protective valve and the said preceding braking air tank, be provided with second pressure regulating valve between said protective valve and the said back braking air tank in order to the brake-pressure of regulating said trailing wheel brake servo circuit in order to the brake-pressure of regulating said front wheel brake control loop.
A kind of pneumatic brake vehicle, this pneumatic brake vehicle has the vehicle brake control apparatus of the utility model.
The pneumatic brake vehicle of the utility model, preferred, said pneumatic brake vehicle is the pneumatic brake bus.
The beneficial effect of the utility model is, the vehicle brake control apparatus of the utility model, and it is applicable to the pneumatic brake passenger vehicle.Through in arbitrary brake circuit of front axle or back axle, using pressure regulating valve; The pressure of adjustment brake circuit air; Play the purpose of regulating the braking force size, actv. has avoided taking place because of the tire locking phenomenon of wheel shake, and it is highly suitable for changing the bus use of drg pattern.
Description of drawings
Fig. 1 is the scheme drawing of the vehicle brake control apparatus of prior art.
Fig. 2 is the scheme drawing of the vehicle brake control apparatus of the utility model embodiment.
The specific embodiment
The exemplary embodiments that embodies the utility model characteristic and advantage will be described in detail in following explanation.Be understood that the utility model can have various variations on various embodiment, the scope of its neither disengaging the utility model, and explanation wherein and appended accompanying drawing be the usefulness of being used as explanation in itself, but not in order to restriction the utility model.
The pneumatic brake vehicle of the utility model embodiment has the vehicle brake control apparatus of the utility model embodiment.
The pneumatic brake vehicle of the utility model, pneumatic brake bus preferably comprises the pneumatic brake passenger vehicle of various power form, both can be two-axle car, also can be three cars or articulator.In non-two-axle car, the trailing wheel braking refers to the braking of other wheels except that front-wheel.
Below before by turns the pneumatic brake bus of sabot formula drg be example, introduce the vehicle brake control apparatus of the utility model embodiment.Only show the structure of front wheel brake control loop among Fig. 2, and for the trailing wheel brake servo circuit, then the trailing wheel brake servo circuit of available prior art is realized.
As shown in Figure 2, the vehicle brake control apparatus of the utility model embodiment comprises the front wheel brake control loop that is used for front wheel brake, be used for the public brake pedal 3 of trailing wheel brake servo circuit, the front and back wheel control loop of trailing wheel braking, the master brake cylinder with epicoele and cavity of resorption 4, air compressor 8, the outlet side bonded assembly air dryer 7 of air compressor 8, the air dryer 7 outlet side bonded assembly four-loop protection valves 5 of brake pedal 3 controls.Wherein, the epicoele of master brake cylinder is used for the trailing wheel brake circuit, and cavity of resorption is used for the front wheel brake loop, braking air tank 6 before promptly master brake cylinder 4 cavity of resorption inlet ends 12 insert.In addition, the outlet side 22 of master brake cylinder 4 cavity of resorptions connects rapid release valve 2, and two outlet sides of rapid release valve 2 connect compressed air brake cylinder 1.
Preceding braking air tank 6 gas circuits of said front wheel brake control loop are connected in an outlet side of four-loop protection valve 5, and three outlet sides of other of four-loop protection valve 5 can connect trailing wheel brake servo circuit, braking during standstill control loop and auxiliary air passage respectively.Certainly, in other application, the four-loop protection valve 5 here can also be replaced by double loop protective valve and multiloop protective valve.And preceding brake servo circuit, what connect that two-system takes offence chamber 1 also is not limited to rapid release valve 2, also can be relay valve etc.
The phenomenon of wheel shake does not take place when making front wheel brake, also is provided with the pressure regulating valve 9 in order to the brake-pressure of regulating said front wheel brake control loop between four-loop protection valve 5 and the preceding braking air tank 6.In the present embodiment, the inlet end of braking air tank 6 before pressure regulating valve 9 is arranged on also is that the inlet end of pressure regulating valve 9 is connected in the gas circuit end between four-loop protection valve 5 and the preceding braking air tank 6, the outlet side of braking air tank 6 before the outlet side of pressure regulating valve 9 is connected in.Certainly, braked before being connected of braking air tank 6 and four-loop protection valve 5 before pressure regulating valve 9 also can be arranged on the gas circuit between the outlet side of air tank 6, perhaps be arranged at the outlet side that four-loop protection valve 5 links to each other with preceding braking air tank 6.
The vehicle brake control apparatus of the utility model embodiment; The principle of work of its front wheel brake control loop is: when chaufeur is stepped on brake pedal 3; Gas arrives compressed air brake cylinder 1 by air compressor 8 through air dryer 7, four-loop protection valve 5, pressure regulating valve 9, preceding braking air tank 6, master brake cylinder 4 cavity of resorptions, rapid release valve 2, makes front wheel brake.Behind loosen the brake 3, the gas in the compressed air brake cylinder 1 leads to atmosphere through rapid release valve 2 exhausr port (not shown)s, the braking return.
This moment is during front wheel brake; Can the brake-pressure of preceding brake circuit be reduced to suitable numerical value (by GB12676 " brake system of car structure, performance and test method " rules A7.2 requirement by the pressure regulating valve 9 of the inlet end of braking air tank 6 before being installed in; This pressure must not less than the design maximum entrance pressure 80%), make glancing impact that the phenomenon of wheel shake not take place.Selecting for use of this pressure regulating valve 9; Can be according to needed brake-pressure, for example 0.65MPa, 0.70MPa, 0.75MPa etc. select the pressure regulating valve 9 of respective model to install and debug; After reaching satisfactory brake-pressure,, just need not regulate pressure regulating valve 9 again by vehicle after dispatching from the factory.Because certain link in gas circuit installs pressure regulating valve 9 additional; Than little many of the work capacity of the compressed air brake cylinder 1 that changes the outfit; Therefore, the utility model pneumatic brake vehicle of can fast speed solving unequipped ABS is used behind the plate disc brake problem that the wheel shake takes place because of the tire locking instead.
In addition; Like back axle plate disc brake is installed; The phenomenon of wheel shake takes place to take place because of the tire locking in glancing impact; Can come between the outlet side of braking air tank after being connected of back braking air tank and four-loop protection valve 5, to install pressure regulating valve additional with reference to the utility model the foregoing description, the brake-pressure that trailing wheel is braked transfers to trailing wheel and does not shake and get final product.The plate disc brake if front and back wheel has all changed the outfit then can all install a pressure regulating valve additional between forward and backward braking air tank and four-loop protection valve 5.
Those skilled in the art should recognize change and the retouching of under the situation of scope that does not break away from the appended the utility model that claim disclosed of the utility model and spirit, being done, and all belong within the protection domain of claim of the utility model.
Claims (9)
1. vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The preceding braking air tank gas circuit of said front wheel brake control loop is connected in an outlet side of said protective valve; The trailing wheel of said vehicle is a drum brake mechanism; It is characterized in that; Said vehicle front-wheel is a plate disc brake, also is provided with the pressure regulating valve in order to the brake-pressure of regulating said front wheel brake control loop between said protective valve and the said preceding braking air tank.
2. vehicle brake control apparatus as claimed in claim 1 is characterized in that, said protective valve is a four-loop protection valve.
3. vehicle brake control apparatus as claimed in claim 2 is characterized in that, said pressure regulating valve is arranged at the inlet end of said preceding braking air tank.
4. vehicle brake control apparatus as claimed in claim 2 is characterized in that, is connected with rapid release valve between two the preceding compressed air brake cylinders of said front wheel brake control loop and the cavity of resorption of said master brake cylinder.
5. vehicle brake control apparatus as claimed in claim 1 is characterized in that, said protective valve is double loop protective valve or multiloop protective valve.
6. vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The back braking air tank gas circuit of said trailing wheel brake servo circuit is connected in an outlet side of said protective valve; Said vehicle front-wheel is a drum brake mechanism; It is characterized in that; The trailing wheel of said vehicle is a plate disc brake, also is provided with the pressure regulating valve in order to the brake-pressure of regulating said trailing wheel brake servo circuit between said protective valve and the said back braking air tank.
7. vehicle brake control apparatus; The master brake cylinder with epicoele and cavity of resorption, front wheel brake control loop, trailing wheel brake servo circuit, air compressor, said air compressor outlet side bonded assembly air dryer and the said air dryer outlet side bonded assembly protective valve that comprise brake pedal, the control of said brake pedal; The preceding braking air tank gas circuit of said front wheel brake control loop is connected in first outlet side of said protective valve; The back braking air tank gas circuit of said trailing wheel brake servo circuit is connected in second outlet side of said protective valve; It is characterized in that; Said vehicle front-wheel and trailing wheel are plate disc brake; Be provided with first pressure regulating valve between said protective valve and the said preceding braking air tank, be provided with second pressure regulating valve between said protective valve and the said back braking air tank in order to the brake-pressure of regulating said trailing wheel brake servo circuit in order to the brake-pressure of regulating said front wheel brake control loop.
8. a pneumatic brake vehicle is characterized in that, this pneumatic brake vehicle has the arbitrary described vehicle brake control apparatus of claim 1-7.
9. pneumatic brake vehicle as claimed in claim 8 is characterized in that, said pneumatic brake vehicle is the pneumatic brake bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204617962U CN202368566U (en) | 2011-11-18 | 2011-11-18 | Pneumatically braked vehicle and vehicle brake control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204617962U CN202368566U (en) | 2011-11-18 | 2011-11-18 | Pneumatically braked vehicle and vehicle brake control device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368566U true CN202368566U (en) | 2012-08-08 |
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ID=46592282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204617962U Expired - Fee Related CN202368566U (en) | 2011-11-18 | 2011-11-18 | Pneumatically braked vehicle and vehicle brake control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368566U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648365A (en) * | 2015-01-30 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Air pressure type braking operation device |
| CN104648366A (en) * | 2015-01-30 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Air pressure type braking operation device with safety valve |
-
2011
- 2011-11-18 CN CN2011204617962U patent/CN202368566U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104648365A (en) * | 2015-01-30 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Air pressure type braking operation device |
| CN104648366A (en) * | 2015-01-30 | 2015-05-27 | 柳州市二和汽车零部件有限公司 | Air pressure type braking operation device with safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20171118 |