CN1003359B - Central tyre inflation system - Google Patents

Abstract

The present invention relates to a centralized tyre inflation system which comprises a pressure relief valve which is inserted into a control device in a fluid way, and a tyre valve component. A control valve component can selectively carry out pressurization or air exhaust for a first pipeline which is connected with a first air inlet-outlet channel of the pressure relief valve; a second pipeline extends into the tyre valve component from a third air inlet-outlet channel of the pressure relief valve, and a second air inlet-outlet channel is communicated with the atmosphere. When the pressure of the pressure relief valve in the first pipeline exceeds the pressure of the pressure relief valve in the second pipeline, the pressure relief valve can be communicated with the first air inlet-outlet channel and the second air inlet-outlet channel; when the pressure of the pressure relief valve in the second pipeline exceeds the pressure of the pressure relief valve in the first pipeline, the pressure relief valve can be communicated with a fluid channel between the second pipeline and an exhaust port.

Description

Tire is concentrated air inflator system

The present invention is that tire is concentrated air inflator system (CTIS), also can be used as air inflator system and tire traction system on the car, in this system the inflation pressure of or several automobile tyres can be in stationary vehicle and/or motion by at a distance the driving compartment of vehicle (normally) control, and use car upward pressure fluid source (being generally the pressurized air of vehicle pneumatic brake compressor and/or compressed air tank).

Tire is concentrated air inflator system, equally also can be used as the tire traction system, is well known in the prior art, and this point is in reference US Patent NOS, 2634782; 2976906; 2989999; 3099309; 3102573; 3276502; 3276503; 4313483; 4418737; Can be very clear after 4421151 and 4434833, all disclosed contents all are included in here as a reference for this reason.CTIS allows the operator manually and/or automatically to change at a distance and/or keeps in one or several vehicle tyre inflation pressure from vehicle (normally truck) air system, the vehicle of this moment both can be underway also can be in quiescence.

As everyone knows, vehicle is (promptly at mud ground, sand ground or snowfield) when traction in softer area, reduces that inflation pressure can greatly improve traction state in the tire.By reducing the inflation pressure in the tire, the area supported of tire (being commonly referred to " footprint ") will increase, and therefore enlarge the area of contact between tire and the road.In addition, also be desirable with long-distance transport with in the pressure relief of the vehicle wheel that travels on highway wheel to be increased in the traveling comfort that travels on the rough road.On the other hand, higher tire pressure has reduced the temperature of rolling resistance and Outer Tyre body on smooth road.Therefore.Economy and safety have been increased.Thereby, in cross country car, just wish to change in the tire inflation pressure to adapt to different road surfaces, it would also be desirable to provide simultaneously a kind of with car upward pressure source change travel in or the system of the inflation pressure of tire of quiescence vehicle, and this system can control from automobile cab.This point is especially meaningful for military-designed vehicle, and these vehicles travel with column usually, and the stagnation of movement of vehicle can delay whole column.In addition, if army is subjected to enemy's attack, it is indispensable that vehicle keeps manoevreability as far as possible.If tire by breaking-ups such as bullets, just wishes can partly give the wheel that damages inflation at least, if can accomplish this point, vehicle just can keep manoevreability.

Although CTIS is well known in the prior art, and in septic yanks, using after the World War II at least, but prior art system is not what be entirely satisfactory yet, this is because these systems use the pipeline that is installed in exposure position, valve and/or sealing member, it is become is easy to damage when passing coarse area, also operating needs is at the valve and the pipeline of hub positions exhaust, like this, because water, mud, the result that snow etc. stop up, cause misoperation, can not accomplish to isolate badly damaged automatically, and ring sealing part is subjected to the vehicle tyre of differential pressure under the stable state operational circumstances, Gu this reduces its life-span, replenish pressurized air to the pneumatic brake system when having strengthened the emergency situation that does not have the low operating pressure that when long-distance transport, to store compressed-air actuated device so that in vehicle pneumatic brake jar, have only murther on the possibility of leaking and the car.Moreover, said system can not make 4 * 4 yet, the front and back flower wheel of 6 * 6 or 8 * 8 vehicles is filled with the device of different pressures, also do not have the automatic guidance logic device drilling through the hole on the axle housing and/or on the hub unit to reduce inflation/evacuation time and/or to require, this just may weaken hub unit or axle housing and/or make to existing that to carry out the CTIS improvement at vehicle more difficult and expensive.

According to the present invention; concentrate air inflator system owing to have the tire that adopts ring seal; the shortcoming of prior art has reduced to minimum or has eliminated; ring seal is installed in the cabin of good protection the position and (sees U.S. Patent No. 4434833; transferred the assignee of the present invention); this concentrated air inflator system has also adopted process than the position that is installed in protection of the structure of severe test or pipeline and the valve that vehicle tyre inside is protected, and has adopted and can automatically isolate the adjustment mechanism for valve that has less than the tire that gives fixed minimum reference pressure from the remainder of system.Adopt not need be at the vehicle wheel component place to relate to whole pores that supernatant position provides system, adopt valve operation when system stability is operated, to discharge internal pressure in ring seal place to the valve of atmospheric exhaust and/or pipeline and at car chassis.Adopting in case of emergency makes the gas-pressurized that is stored in the vehicle tyre can be used in the valve and the control setup of vehicle pneumatic brake system, employing can make the vehicle front and back wheel fill with down with the device of inflation pressure and only need bore an opening separately on hub unit, so that to this system of repacking on the existing automobile.

Said process concentrates air inflator system to finish by the tire that offers vehicle, this system adopts a valve member that comprises a control cock and inflation pressure of tire shutoff valve on the low side at each wheel end assembly (being generally individual or the duplex tire), this valve member is connected on the central control system by single catheter pressure by annular seal assembly and makes it supercharging, thereby single pressure pipeline is enough to open and close the passage of motor tire, and this inflation of tire and/or venting are made it to reach selected pressure.Valve member can be installed in inside tires.For example: be installed in its bead lock band part.Inflation pressure of tire shutoff valve on the low side is lower than when giving fixed reference value at the inflation pressure of tire, and it all separates can be effectively automatically connected tire and tire to be concentrated air inflator system.

The single pressure pipeline that leads to ring seal on hub unit is connected to source of pressurised fluid by many control cock, these control cock can be opened the passage of source of pressurised fluid to tire effectively, so that the pressure that the measuring wheel tire is existing, thereby as required to inflation of tire or venting, link up or cut off tire and tire and concentrate the passage of air inflator system, and under tire inflation system stabilized conditions situation, discharge the pressure of single catheter pressure and the pressure that is released in annular closed, most probably, may be separate or be by a mechanical arm operation by the control cock that single valve piece provides, controller is preferably a microprocessor controller, it detects the inflation pressure of tire of being selected by the operator, detects the pressure state at that time of car speed and automobile air brake system and air inflator system gas tank.

Therefore, purpose of the present invention just provides and a kind ofly new concentrates air inflator system with the tire that has improved.

Read the following specifically describes with accompanying drawing after, these purposes of the present invention and advantage will become fairly obvious.

Fig. 1 is the principle schematic that the present invention is used for controlling the pneumatic element of single inflation of tire.

Fig. 2 is the section-drawing of the control cock in Fig. 1 principle schematic;

Fig. 3 is the section-drawing of the inflation pressure of tire shutoff valve on the low side in Fig. 1 principle schematic;

Fig. 4 is the section-drawing of the quick release valve in Fig. 1 principle schematic;

Fig. 5 is the diagram of tire tire footprint when different inflation pressure;

Fig. 6 is under initial or steady state operation situation, the principle schematic of pneumatic element shown in Figure 1;

Fig. 7 is a pneumatic element principle schematic shown in Figure 1 when the tire pressure measurement operating mode;

Fig. 8 is the principle schematic of pneumatic element shown in Figure 1 when the inflation of tire operating mode;

Fig. 9 is the principle schematic of the pneumatic element of inflation pressure of tire shown in Figure 1 inflation fence operation on the low side mode;

Figure 10 is the principle schematic of pneumatic element shown in Figure 1 when ending operating mode in system;

Figure 11 is the principle schematic of pneumatic element shown in Figure 1 when bleeding a tire operating mode;

Figure 12 is the transparent view of a possible mechanical arm control desk;

Figure 13 is the principle schematic that a tire of the present invention that is used on 6 * 6 vehicles is concentrated air inflator system;

Figure 14 is the principle schematic of an alternative one embodiment of the invention;

Figure 15 is the principle schematic of an alternative vehicle air system;

Figure 16 is the principle schematic of alternative embodiment shown in Figure 13;

Figure 17 is the part principle schematic of an alternative embodiment of the invention;

Figure 18 is the characteristic curve scheme drawing of system's control operation inflation/evacuation time estimation.

Following to narration of the present invention in, will use some term, this only is for referential, rather than wants to provide what restriction.The picture term " makes progress ", and " downwards ", " left " " to the right " are exactly relevant direction with reference to the accompanying drawings; It to be geometric centre direction towards the device of being mentioned that term " inwardly " and " outwards " be just relevant respectively, still deviates from the geometric centre direction of device.Term " inflation " and " venting " are that what air pressure of relevant respectively tire or other is to increase or reduce.These above-mentioned vocabularies of terms will comprise the speech that the front was mentioned especially and change the speech of meaning speech and some similar alien words.

According to transportation means in transportation the different terrain of process, the advantage of the inflation pressure of the air-inflation tyre (particularly flower wheel) of the change transportation means transportation means that particularly those loads are bigger is that people institute tool is known in the prior art, with reference to we just can understand this point behind Fig. 5.

For example, suppose on good highway pavement that the normal inflation of the rear drive sprocket of automobile approximately is 75psi.For at the rough road land locomotion, the pressure of tire will reduce to about 30psi.If automobile is at sand ground, mud ground or in snowfield, travel, the pressure of tire will reduce to about 20psi.The result who does like this makes tire and ground that bigger area of contact (that is: footprint) be arranged, thereby has improved the traction situation.Under the lower situation of inflation pressure of tire except improving traction, automobile also can be with fast speeds by bad location, road surface, and reduces the wearing and tearing of automobile, because just look like that Leveling machine crosses " washboard " type road surface.On the contrary, in order to reduce the operating temperature and the wearing and tearing of tire when the running on expressway, just wish that the inflation pressure of tire is higher.Certainly,, be sought after in automobile cab,, control the pressure of tire by a fluid pressure source on automobile in order to strengthen the manoevreability of automobile.Also want the same when stopping when running car, the pressure of motor tire also can change or remain unchanged.Also be sought after making the inflation pressure of motor tire to change, can measure.And be independent of the concentrated air inflator system of tire, so that can check rapidly, increase or reduce the pressure of tire.Here it is to the requirement of inflation of tire.

Referring to figs. 1 through Fig. 4, the what use is made of tire concentrates the Pneumatic assembly of air inflator system (10) to control the inflation pressure of a single tire (12) as can be seen.Fig. 1 has represented the location status of various pipeline pressurized states and various valves to Fig. 4.Arrive Figure 11 different operating state of system (10) as can be seen with reference to Fig. 6.

Inflatable tire (12) is contained on the wheel (14), and wheel is fixed on the hub unit (16), and wheel hub is by the outer end of the rotatably mounted axle housing of bearing (20) (18).An axle drive shaft (not shown) as a differentiator (not shown), by the method driving of routine, is come from axle housing (18) extension.Comprise that also a flange (not shown) makes axle drive shaft link to each other with wheel hub.Referring to the U.S. Patent No. 4434833 that transfers the invention cessionary with regard to passable solve more detailed.A ring bush (24) press fit on the axle sleeve at the inner side of bearing (20).What wheel hub can have an elongation to the inside is enclosed within the outer sleeve shaped flange (26) of lining (24).Be arranged between the interior circle of the cylindrical of lining (24) and sleeve shaped flange (26) a pair of grommet type seals (28) and (30) warp-wise, thereby between them, formed a ring seal capacitor (32).Lining (24) provides an import (34) and one to lead to capacitor (32) passage (36).Sleeve shaped flange (26) has a passage (38) that radially extends, and this passage is to lead to the flange radially outer from ring seal chamber (32).The passage of a simple passage (40) as a pressure line can be provided on the warp-wise flange position (42) of wheel hub (16).Among the patent No.4434833 of the U.S. that said structure is mentioned introduction is arranged in the above, but be not a part of the present invention, should be appreciated that certainly the present invention is equally applicable to the hub/shaft shell component of other structures (being also referred to as " wheel end assembly ").

Tire is concentrated air inflator system (10) can regard as by two parts to form, and one is the fixing parts (46) that are fixed on the car chassis, and another is the turning unit (48) that rotatably is fixed on wheel hub (16) and the tire (12).Fixed parts (46) is connected by being realized by grommet type seals (28) and (30) determined annular compartment (32) with gas circuit between the turning unit (48).In brief, the fluid line (50) that comes from fixed parts (46) is connected in the import (34) of the passage (36) that lining (24) constitutes.And the fluid line (52) that leads to turning unit (48) is connected on the passage (38) that sleeve flange (26) upward constitutes, and forms opening (40) by going up at the flange (42) of wheel hub (16).In order to protect fluid line (52), on opening (40), join a grommet or lining (54), perhaps constitute opening (40) by bore hole on the wheel binding bolt.Certainly alternatively also can on wheel hub (16), provide a passage to lead to the outside.This shows, install to the system (10) on the wheel end assembly, need not go up boring, only go up and bore a hole (40) at the radial flange dish (42) of wheel hub (16) at axle housing (18).Thereby, as a kind of basic device and/or on automobile a system of repacking (10) be very simple, and can not weaken the load supporting structure of axle housing and wheel hub.It should further be appreciated that and lead to wheel hub that the grommet type seals of sleeve assembly (28) and (30) and conduit (50) all can be placed in place safe in the automobile.

The turning unit (48) of system (10) comprises an inflation pressure of tire shutoff valve on the low side (56), and a control cock (58) and a manual inflation can be used as an integral body and/or are installed in tire (12) lining with pressure test valve (60) inflation pressure of tire shutoff valve on the low side (56) and control cock (58).Inflation pressure of tire shutoff valve on the low side (56) and control cock (58) can be thought the tire valve nozzle assembly of system (10).

Many siphunculus parts (62) of pipeline (52) are connected with each other intake and exhaust port (64) and (66) of tire pressure shutoff valve on the low side (56) and control cock (58) respectively, and couple together by chamber (32) and pipeline (50).Another many siphunculus parts (68) couple together intake and exhaust port (70) and (72) of tire pressure shutoff valve on the low side (56) and control cock (58) respectively.And the inflatable chamber (74) of a manual inflation and pressure test valve (60) and air-inflation tyre (12) is communicated with to get up.Pipeline (76) is connected to each other intake and exhaust channel (78) and (82) of tire pressure shutoff valve on the low side (56) and control cock (58) respectively.If the manual shutoff valve that the air-flow of many siphunculus parts (68) can be divided to charge valve (60) and the gas circuit between two tires be separated when needing with two tires.

Joining Fig. 2, Fig. 3 can understand the detailed structure and the principle of work of control cock (58) and inflation pressure of tire shutoff valve on the low side (56) respectively.The structure of used multiple valve all has description to a certain degree in the present invention, should understand, and many valves are different with the obvious structure of forming with several valves of assembly but can carry out same function, thereby can replace mutually.Should also be clear that different conduits and passage can represent that also available a plurality of block structures represent that they also can replace mutually with a block structure.

Referring to Fig. 2, control cock (58) is a kind of diaphragm valve as can be seen, and it can manage to utilize the valve that can buy on the market to reequip, and can buy the automobile air brake quick release valve of the parts No.AC15793 of Bery manufacturing company production.Control cock (58) has 4 intake and exhaust ports, intake and exhaust port (66) is connected with many siphunculus parts (62) of pipeline (52), intake and exhaust port (72) is connected with many siphunculus (68), intake and exhaust port (80) is connected with pipeline (76), also has an out-of-run intake and exhaust port (82) to block with a plunger (84).Control cock (58) comprises a valve body (86), and it has determined a central bore (88), the middle plunger tpe diaphragm (90) of installing in this chamber.The valve body (86) that can be a polylith structure has been determined one first ring-shaped valve seats (92), and it is sealed by the excircle of diaphragm (90), is connected with fluid between (66) in order to control intake and exhaust port (80).Force the excircle (94) and ring-shaped valve seats (92) tight connection of diaphragm (90) respectively by a spring and spring space.Valve body (86) can also be determined a ring-shaped valve seats (100), and it combines with the plunger part (102) of diaphragm (90) usually, in order to the gas communication between the control intake and exhaust port (66) and (72).A lining (104) is press fit over parts (72) upward just formed a metering hole at that.Spring (106) and spring perch (108) are in order to force plunger (102) and valve seat (100) tight connection, and the gaseous tension that intake and exhaust port (80) is located also acts on the upper surface (110) of diaphragm (90).The area of the surface area ratio lower surface (112) of diaphragm upper surface (110) is big, and that metering hole allows to use a spring than small tension receiving coil (106).

Spring (106) is pressed in the plunger portion branch of diaphragm on the ring-shaped valve seats (100), it will withstand the air pressure of about 100psi that intake and exhaust port (72) (it is connected with tire (12) by leading (68)) locates, so the maximum pressure root of tire limit is exactly 100psi, can certainly select another maximum tire pressure value.If the pressure of tire has surpassed maximum pressure, the plunger of diaphragm part just lift off a seat (100) so, intake and exhaust port (72) and (66) are communicated with, allow the tire pressure that overflows by following method discharging, occurring that tire pressure overflows may be owing to inflate and/or the too high temperature of tire (12) causes by the hand valve mal.Suppose that intake and exhaust port (80) leads to atmosphere, locate to act at intake and exhaust port (66) on the lower surface (112) of diaphragm (90) approximately is that the pressure of 10～20psi makes the diaphragm plunger portion separate valve seat (100), make to be communicated with between intake and exhaust port (66) and (72), be communicated with thereby just make between sealed chamber (32) and the tire.The pressure decay of locating when intake and exhaust port (66) is when being lower than 7psi, and spring (106) will make diaphragm plunger part (102) tightly be pressed on the valve seat (100) again, so just close control cock.If when the pressure in pipeline (50) and the pipeline (52) was lower than 7psi, control cock (58) was just closed, if pressure is higher than 10～20psi, control cock (58) just will be opened the passage between intake and exhaust port (66) and (72).

Inflation pressure of tire shutoff valve on the low side (56) as shown in Figure 3, form through the quick release valve of truck air brake system of repacking by one, it is the parts NOAC15793 that is produced by Bery manufacturing company, and this part can be with reference to the control cock of introducing above (58).Inflation pressure of tire shutoff valve on the low side (56) comprises a valve body (114), and it has 4 intake and exhaust ports, and intake and exhaust port (64) is connected with many siphunculus parts (62) of pipeline (52).Intake and exhaust logical (70) are connected with the inflating cells (74) of tire (12) by many siphunculus (68).Intake and exhaust port (78) is connected with the intake and exhaust port (80) of control cock (58) by pipeline (76).That no intake and exhaust port (116) is blocked with plunger (118).Valve body (114) also has an inner cavity chamber (120), and a plunger diaphragm (122) is housed in this inner chamber.Valve (56) is the valve of a repacking, and normal diaphragm spring has been torn open, replaces a sleeve member (124), and it makes the cylindrical (126) of diaphragm (122) tightly withstand valve seat (128).And intake and exhaust port (70) just and intake and exhaust port (64), and (78) have kept apart fully.Sleeve member (124) has one or several hole (130) to be used for linking up gas communication between intake and exhaust port (64) and (78) and the gas communication between intake and exhaust port (78) and diaphragm (122) lower surface (132).The area of diaphragm lower surface (132) is littler than the area of upper surface (134).Valve body (114) has a ring-shaped valve seats (136) to be sealed by the plunger part (138) of diaphragm (122), thus the gas communication between the control intake and exhaust port (64) and (78).

The area (134) that bears the diaphragm (122) of the tire pressure of locating at intake and exhaust port (70) is 10 times of plunger part (138) area (140) of diaphragm (122) at least, and plunger partly bears the pressure that intake and exhaust port (164) is located.Yet,, valve (56) is opened be communicated with intake and exhaust port (64) and (78) even the pressure that the intake and exhaust port (64) that is connected with many siphunculus (62) is located is ten times of supply gas pressure as long as in inflation of tire chamber (74), keep minimal pressure.Suppose that the supply gas pressure of locating at intake and exhaust port (64) is no more than 110psi, the air pressure in tire and the many siphunculus (68) is higher than 10psi, just will make valve (56) keep closed condition.Yet just in case tire (12) is badly thorough, it just can not maintain minimal pressure.The air pressure of steam line (62) will make diaphragm plunger part (138) lift off a seat (136) thereby be communicated with intake and exhaust port (64) and (78), this just makes supply gas pressure affact on the intake and exhaust port (80) of control cock (58) through piping (76), supply gas pressure will act on the upper surface (110) of diaphragm (90) of control cock (58) like this, make control cock (58) keep closed condition, cut off the path between the intake and exhaust port (66) and (72).Therefore, bad tire is automatically isolated with system, the supply gas pressure of system just can not leak from bad tire like this, can keep predetermined minimal pressure at least, and the remainder of tire inflation system can be to those good inflation of tires like this.The mode of operation that bad tire is automatically isolated and will explain as shown in Figure 9 below.When tire inflation system was closed, the pressure at diaphragm (90) top affacted surface (110) and just goes out along locating seepage at cylindrical (94) and valve seat (92).Certainly, for system can work, must make initial pressure be greater than tire minimal pressure power, for example 10psi for tire (12) inflation by initial inflation process and pressure test valve (60).

Initial inflation process and pressure test valve (60) are installed on many siphunculus (68), perhaps also can be directly installed on the wheel.The bottom's outlet that is in valve (56) and valve (58) simultaneously is so that directly be connected with the inflatable chamber (74) of tire (12).Initial inflation process and pressure test valve (60) are the tire porthole plug structures of a standard, are many in common knowledge in prior art.

Be important to note that and be installed in wheel hub---control cock (58) and inflation pressure of tire shutoff valve on the low side (56) on the sleeve assembly, some such structures have been utilized, each chamber leads to atmosphere by many siphunculus parts (62) of pipeline (52) separately, will more be described in detail below.Because tire (12) lining has dirts such as water, mud, snow or sand, so valve (56) and valve (58) will can not get clogged.

Tire concentrates the fixed parts (46) of air inflator system (10) to be installed on the appropriate location of car chassis, the line of paddling that is installed in automobile is above just better, and it is by being got up with turning unit (48) downlink connection by single pipe (50) and single ring seal chamber (32).

Fixed parts (46) comprises a pressure gas source (142), and it is a representative type automobile air compressor system or more precisely by compressor compressed and supplied air holder.Truck just is equipped with this air compressor, comprises pneumatic brake on car, transmission and/or bridge axle mechanical arm and/or controller, the compressed air system air feed that air suspension system etc. are formed.If do not assemble air system on the car, also can be CTIS(10) mix an independent compressor and/or gas tank.

Pressure fluid source compressed and supplied air, pressure generally is no more than 120psi, the inlet (150) that turnout (146) and (148) by bifurcated pipe (144) flow to charge valve (154) respectively and the inlet (152) of barometric regulator (156), the outlet (162) of blow off valve (164) is led in the outlet (158) of barometric regulator (156) by pipeline (160).The outlet (166) of charge valve (154) and the inlet (168) of blow off valve (164) are connected with siphunculus more than (170) respectively, and many siphunculus (170) also are connected with the inlet (172) of shutoff valve (174).Shutoff valve (174) has an outlet (176) to lead to deflation hole.Many siphunculus (170) also join with the intake and exhaust port (178) of quick release valve (180).Pressure sensor (186) is experienced the air pressure of pipeline (170) by pipeline (188).Quick release valve (180) has an intake and exhaust port that is connected with deflation hole (182), and another and pipeline (50) bonded assembly intake and exhaust port (184) lead to wheel hub one axle housing assembly.

Pressure regulator (156) can be any common design plan, and it will be limited in the gaseous tension by pipeline (160) about about 8～10psi.It also has a release air flue (190) to lead to deflation hole.Therefore, as can be seen, when communicating when the outlet (162) of blow off valve (164) and through the pressurized air that the pressure that regulating control is regulated is approximately 8-10psi, supply gas pressure is being born in the entrance (150) of charge valve (154).As below will seeing, pressure regulator (156) is regulated quick release valve (180) and therefore pressure is transferred to the minimum pressure that system (10) gives tire (12) venting.

Charge valve (154), blow off valve (164) and shutoff valve (174) all are the two-position valves of smaller flow, or rather, all are the electromagnetic valves of conventional design.Charge valve (154), blow off valve (164) and shutoff valve (174) all have a primary importance or off position, and do not allow the import of valve and exit that any gas flow is arranged this moment.The second place or title open position allow gas to produce mobile in the import and the exit of valve this moment.Usually, two electromagnetic valves (154) and (164) are to press to the position of closing by the spring handle valve, and shutoff valve (174) is the position of pressing to unlatching by the spring handle valve.

The detailed structure of quick release valve or pressure relief valve (180) can be referring to Fig. 4, briefly, the structure of quick release valve (180) is the same with the structure of above-mentioned control cock (58) in itself, has only some exception, be exactly that control cock (58) is used steam discharge air restrictor (104), and quick release valve is without exhaust shutter valve.Valve (180) has a valve body (92) that has four intake and exhaust ports, intake and exhaust port (178) is connected with many siphunculus (170), intake and exhaust port (182) is connected with deflation hole, intake and exhaust port (184) is connected with pipeline (50), and obsolete intake and exhaust port (194) is sealed with plunger (196).Valve body (192) has a central bore (198), will adorn a plunger diaphragm (200) in chamber, the excircle (202) of diaphragm (200) and a ring-shaped valve seats (204) are controlled the gas flow between intake and exhaust port (178) and (184) jointly.Spring (206) and spring space (208) are used for excircle of diaphragm (202) and valve seat (204) tight connection.Diaphragm central plunger part (210) and control gas flow between intake and exhaust port (182) and (184) jointly at the ring-shaped valve seats (212) that intake and exhaust port (182) is located.By means of the fluid pressure that acts in the pipeline (170) on the upper surface (218), make the plunger part (210) and valve seat (212) tight connection of diaphragm.

The work characteristics of quick release valve (180) is: fluid can flow to intake and exhaust port (184) (that is to say that the high pressure draft pipeline or the chamber flows to low pressure) then from intake and exhaust port (118), when diaphragm lifts, when making intake and exhaust port (184) lead to exhaust duct (182), air-flow may not flow to intake and exhaust port (178) from intake and exhaust port (184).Furtherly, quick release valve (180) makes the air pressure of locating (pipeline (170) is located) at intake and exhaust port (178) and the air pressure of locating (pipeline (50) is located) at intake and exhaust port (184) trend towards equating with the ducted pressure of lower pressure by linking up intake and exhaust port (178) to (184) and the fluid passage from intake and exhaust port (184) to exhaust duct (182).

Importantly should be noted that, a plurality of valves are by it will the quick release valve of sleeve assembly exhaust (180) be far away from wheel hub one sleeve assembly one by one at wheel hub, simultaneously may be also far away from control cock electromagnetic valve (154), (164) and (174), quick release valve (180) may come distance control by a forcer pipeline (170), be connected with the intake and exhaust channel (178) of valve (180), be connected with electromagnetic valve by thread a pipe (170) more, will be described in more detail below.In order to make system deflation faster and make control cock (58) and inflation pressure of tire shutoff valve on the low side (56) work sooner, on each root axle or on each wheel hub one sleeve assembly a quick release valve is being installed separately.By the pressure gas in the controlling plumbing fixtures (170), just can controlling plumbing fixtures (50) and the minimum pressure of the chamber of (52) and all connections, so these local gases can pass through quick release valve (180) exhaust automatically.When system (10) is in the mode of operation of venting, quick release valve (180) is emitted the pressure that makes herein to the air in pipeline (50) and (52) and is equaled through the pressure after regulating control (156) adjusting, and pipeline (50) and (52) are connected with inflation of tire chamber (74) by control cock then.When system (10) is in closed condition (steady-working state), inflation of tire chamber (74) has just been separated with pipeline (52) by control cock (58) control, and pipeline (170) leads to atmosphere through shutoff valve (174), and atmosphere is led to by quick release valve (80) in pipeline (50) and (52) and sealed chamber (32).

Pressure sensor (180) can be any commercially available deisgn product, and it provides signal, exactly is electric signal, the pressure of display pipes (170).

Tire concentrates the principle of work of pneumatic element in the air inflator system (10) as follows, under normal and stabilized conditions situation, promptly when tire inflation system (10) is also inoperative, the inner chamber (174) of tire (12) and thread a pipe (68) will be forced into certain force value greater than minimum pressure values more, for example: being used for highway is 75psi, be used for cross-countryly for 30psi, or be used for sand ground, mud ground or snowfield and travel and be 20psi.If pressure is lower than minimum pressure values (for example 10psi) in the tire (12), tire must be by means of manually inflation and pressure test valve (60) are pressurized to minimum pressure values at least.In stabilized conditions situation (see figure 6), charge valve (154) and blow off valve (164) are closed, and shutoff valve (174) is opened, in this case, the pressure that air feed is arranged in pipeline (144), in pipeline (160), adjusted pressure is arranged, because shutoff valve is opened, pipeline (170) exhaust, the upper surface (218) of diaphragm (200) only stands bar pressure in the quick release valve (180) like this, no matter pipeline has much pressure in (62), pipeline (52) and (50) all will be to atmospheric exhausts, because this pressure acts on the lower surface (220) of diaphragm (200), make plunger (210) break away from the valve seat (212) of connecting tube (50), porting (184) and (182) exhaust by quick release valve (180), because many siphunculus parts (62) of pipeline (52) are communicated with atmosphere, therefore, only there is bar pressure in intake and exhaust port (64) and (66) of valve (56) and (58) respectively, like this, intake and exhaust port (70) and (72) of valve (56) and (58) will be sealed respectively, and pipeline (68) and the tire (12) when the inflation pressure of tire other parts from system are separated.Because pipeline (52) and (50) are exhausts, perhaps become exhaust rapidly by quick release valve (184), two grommet type sealss (28) and (30) of formation annular seal space (32) only are subjected to barometric pressure or only are subjected to bar pressure basically on its two sides.

In Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 and Figure 11, the pressure of various pipelines and/or chamber is with " S " expression supply gas pressure, with " R " represent adjusted pressure (8～10psi), represent tire pressure with " A " expression bar pressure and with " T ".

The best way is, in vehicle cab, be furnished with the mechanical arm of band control desk (222) and from accompanying drawing (12), can at length see this control desk, a typical control plate comprises that a plate body (224) preferably can be contained on the instrument carrier panel of vehicle, the button (226) that many (in the diagram being four) can be luminous is arranged on the control desk, (228), (230) and (232).

In illustrated embodiment, button is indicated " highway " on (226), and button is indicated " cross-country " on (223), and button is indicated " sand ground-mud ground " on (230), and button is indicated " shutoff " on (232).Certainly instrument or LED or LCD numeric display unit can be equipped with, also have other control button, and mechanical arm, display of tyre at that time inflation pressure and/or when requiring special inflation pressure, mechanical arm can provide control.For purpose of safety, plate (222) comprises a pivotally attached guard shield (234), and each control button comprises in order to connect Central Processing Unit (CPU), electrical connector (236) this narration in more detail below.

In an embodiment of control desk (222), button (226), (228) or the indicator lamp of one of (230) stablize and shinnyly will show the pressure at that time that keeps by system (10), the operator can press another button, its indicator lamp will glimmer, up to setting up new pressure, at this moment, this button will be stably shinny.If the operator presses the pressure that " shutoff " button (232) controller will be selected highway, this system is not worked, " shutoff " button will be stably luminous.The pressure of the system of selecting for the ease of the maintenance of mechanical arm or protection; this system will regularly monitor the pressure of keeping in each tire; and take various correction measures (inflation or exhaust) to keep the pressure of above-mentioned selection, air demand is not enough and/or other fault can be indicated by the flicker of " shutoff ".As below will narrating in more detail, preferably this controller can detect car speed and reach certain at vehicle and give constant speed when spending, 40 miles per hours for example, it can be automatically inflation of tire to the highway required pressure and light " highway " and turn round button.For the sake of security, when detecting car speed above 40 miles per hours, though press the button (228) or (230), system is " cross-country " or " sand-mud " situation of operation response device selection not.

When the operator selects an inflation that is different from pressure at that time to press, perhaps when at that time operating pressure of automatic periodic monitoring, control unit must be measured inflation pressure at that time, so that determine whether to need inflation and/or exhaust, thereby obtains or keep the pressure of required selection.

Figure 7 shows that the pressure survey mode of the operation of system (10), in brief, controller cuts out charge valve (154), blow off valve (164) and shutoff valve (174), so charge valve (154) will be pulsed apace (that is: promptly open and then turn-off), supply gas pressure is acted on the upper surface (218) of diaphragm (200) in the quick release valve (180), so pipeline (50), (52) and (62) pressurization.Suppose that the pressure in tire and the pipeline (68) surpasses minimum pressure, then inflation pressure of tire shutoff valve on the low side (56) is closed maintenance, so the supply gas pressure that control cock (58) intake and exhaust port (66) is located will act on the back side (110) of diaphragm (90) in the valve (58), just open the intake and exhaust port (66) of valve (58) and the fluid passage between (72), the tire pressure in the pipeline (68) with hold-off valve (58) in opening.Like this, tire pressure or be that tire pressure will be present in pipeline (62) basically, (52) and in (50), and because the effect of quick release valve (180), being present in pressure in pipeline (170) and (188) guides pressure into and makes sensor (186), thereby pressure sensor (186) will only be subjected to the tire pressure effect, and provide a signal that shows its pressure to control unit.Be appreciated that this system must be in state of equilibrium (promptly having little or no fluid flows) in order accurately to measure inflation pressure of tire, this state of equilibrium is in control cock (154), (164), situation when (174) are in its off position.

Then, shown present inflation pressure of tire and the needed tire pressure of signal that is provided by pressure sensor (186) is provided controller, so that need to determine whether inflation or exhaust, if controller need to determine the inflation, then make system (10) take its as shown in Figure 8 the charge operation mode and keep a period of time.If controller need to determine exhaust, then make system take as shown in figure 11 operating method exhaust.If controller is determined without any need for action, then make system take its system as shown in figure 10 by operating mode, each of these operating mode will describe in detail below.

On the basis that the inflation pressure of tire and the selected required pressure of mechanical arm or controller of monitoring at that time compares, if determine need be to monitored inflation of tire for system control unit, system (10) will take charge operation mode as shown in Figure 8.In this charge operation mode, blow off valve (164) and shutoff valve (174) are closed, and charge valve (154) is opened a period of time, when finishing during this period of time, charge valve (154) is closed, be present in pipeline (60), (62), (52), (50), (170) and the inflation pressure of tire in (188) detect by pressure sensor (186), so that need to determine which type of further action, if necessary, at shutoff valve (174) and blow off valve (164) when closing, open charge valve (154) and will in many siphunculus (170), produce this supply gas pressure of supply gas pressure and will flow around diaphragm excircle in the quick release valve (180), and enter pipeline (50), by annular seal space (32), enter pipeline (52) and its many siphunculus parts (62), and enter intake and exhaust port (64) and (66) of valve 56 and 58 respectively.Surpass minimum inflation pressure if be present in the inflation pressure of pipeline (68), inflation pressure of tire shutoff valve on the low side (56) is closed maintenance, to act at the fluid pressure that control cock (58) intake and exhaust port (66) is located on the lower surface (112) of diaphragm 90, thereby open intake and exhaust port (66) and (72), so that inflate to tire (12) by pipeline (68).

It should be noted that, single pressure pipeline or gas exhaust duct path, pipeline (52) promptly are used for opening control cock (58) also to tire (12) inflation, and inflation is to inflate to tire (12) rapidly when its full supply gas pressure, when finishing during this period of time, charge valve (154) is just closed.Because charge valve is closed when shutoff valve and blow off valve maintenance closed condition, so control cock (58) will be held open, quick release valve (180) will make inflation pressure of tire be monitored by pressure sensor (186).

When the inflation pressure that obtains is consistent with the tire pressure of selection, (normally add or deduct given percentum), tire inflation system (10) will be taked the operating mode of ending as shown in figure 10, in operating mode, electromagnetism charge valve (154) and blow off valve (164) are closed, the electromagnetism normal open switch, shutoff valve is opened.Thereby, many siphunculus (170) are to atmospheric exhaust, exhaust duct (182) row that pressure will pass through quick release valve (180) rapidly in pipeline (62), (52) and (50) closes control cock (58) to atmosphere, and system (10) will take normal stabilized conditions as shown in Figure 6.As implied above, in order to keep required pressure, when being preferably in stationary mode, control unit automatically, loop cycle is in pressure survey operating mode as shown in Figure 7.

As discussed above, if a tire (12) suffers badly damaged so that can not keep minimum inflation pressure (as 10psi), just wish very much to concentrate this tire and tire the middle miscellaneous part of air inflator system (10) to separate, other tires can normally be inflated and/or exhaust, wherein there is an inflation pressure of tire to be lower than the operation of the tire inflation system of minimum pressure (10), can be with reference to Fig. 9, can see that tire (12) locates to suffer badly damaged its inner chamber (74) and the connected many siphunculus (68) of making in fact to atmospheric exhaust at " F ".Therefore, to reduce pressure in the chamber (70) of inflation pressure of tire shutoff valve on the low side (56), and have only bar pressure to act on the upper surface (134) of film (122), because charge valve (154) is opened, the porting (64) of pressure pipeline (62) and valve (56) and (65) will be communicated with porting (78) fluid, make porting (80) pressurization of pipeline (76) and control cock (58), like this, the supply gas pressure that acts on the upper surface (110) of diaphragm (102) in the valve (58) will be sealed the porting (72) of valve (58) from pipeline (62), and the miscellaneous part of pipeline (62) and tire (12) and air inflator system (10) is separated.

If the control unit of system (10) need to determine the tire exhaust by measuring operating mode, this system will take operating method exhaust as shown in figure 11.In operating method exhaust, pipeline (50) and (170) are essentially tire pressure at first, electromagnetism charge valve (154) and electromagnet cut off valve (174) are closed, and electromagnetic exhaust valve (164) is opened, therefore, in pipeline (160) and (170) and at the intake and exhaust port (178) of quick release valve (180), locate, have adjusted force value, for example, 10psi.Blow off valve (164) is opened a period of time, the unlatching of blow off valve will be kept adjusted pressure in the top of diaphragm (200) in quick release valve (180), at this moment, because control cock (58) is along with system pressure measurement operating mode is held open, so pipeline (50), (52), (62) and (68) will quickly fall to adjusted pressure.Because pressure reduction is present between the inner chamber (74) and pipeline (68) of tire (12), tire (12) will continue exhaust, and air is discharged by quick release valve intake and exhaust port (182) simultaneously.During this period of time, blow off valve will be closed, and measuring system pressure need to determine whether further exhaust and/or inflation.Importantly should be noted that, pressure in the pipeline (170), the pressure in the quick release valve intake and exhaust port (178) just, quick release valve will be closed, preventing that tire (12) further is vented to be lower than gives the whole pressure of setting the tone, this gives the seamless power of setting the tone greater than the minimum pressure of tire (12), and it can cause the unlatching of inflation pressure of tire shutoff valve on the low side (56).

Can see a kind of multiple-axle vehicle that are used for reference to Figure 13 A, B, 6 * 6 trucies for example, tire concentrates air inflator system (300).When this tire of explanation is concentrated air inflator system (300), structurally with use the parts similar or identical and will adopt same reference number with the middle parts of said system (10).Tire is concentrated air inflator system (300) control four rear drive tires (302), (304), the inflation pressure of (306) and (308) and the inflation pressure of two before driving tires (310) and (312).Though rear tyre is shown single tire in the drawings, be to be understood that as in common knowledge in prior art, also available and mount tyre replaces.Tire concentrates air inflator system to be communicated with spare tyre (314) with fluid equally.Tire (310) is installed in the relative two ends of before driving steering shaft (not shown) with (312), and tire (302) is installed in last back and adorns the relative two ends of axle drive shaft (not shown) with (304), and tire (306) and (308) are installed in one back, back and adorn axle drive shaft (not shown) opposite end.

Each root axle comprises the wheel end assembly (316) of a definite annular seal space (318), be connected on the tyre valve assembly (322) by pipeline (320) from annular seal space, this assembly comprises basically and above-mentioned inflation pressure of tire shutoff valve on the low side (56) and the identical valve of control cock (58).Pipeline (324) is received tyre cavity (328) from valve member (322), and places manually inflation and pressure survey valve (326) in this pipeline.Therefore, can see, each axle head comprised one structurally with use turning unit (48) the identical rotary system parts that are similar to or concentrate air inflator system (10) basically with above-mentioned tire.System (300) comprises the vehicle air compressor (142) on the car and is connected pneumatic brake brake fuel tank (332) by pipeline (330), this fuel tank relies on pipeline (334) and pneumatic brake system (336) to link up, flowing of fluid by pipeline (338) controlled by constant pressure valve (340), this constant pressure valve has only in the pipeline (334) pressure just to allow fluid to flow to system (300) from brake air supply pipe (334) greater than giving when selecting reference value, and this reference value is higher than the pressure that pneumatic brake is used.For example: if brake system (336) needs the working pressure of 60psi, constant pressure valve (340) can be set in and cut off when pressure is no more than 65～75psi in the pipeline (334) and being connected of pipeline (338).Bypass duct (342) is crossed constant pressure valve (340) connecting tube (334) and (388), this bypass duct comprises an one way stop peturn valve (344), only allow fluid to concentrate air inflator system (300) to flow to brake system (336) from tire, bypass duct (346) is connected pipeline (338) on system's gas tank (348), and bypass duct (350) is connected pipeline (338) on the spare tyre (314).Another bypass duct (351) is pipeline (338), and (346) and (350) are connected on charge valve (154) and the pressure regulator (156).In order to be improved, when gas filed operating mode, can operate quickly, the very important point is to keep that bigger pressure reduction is arranged between supply gas pressure and the tire pressure.Because compressor (142) volume is limited, therefore, the inflation of tire is gas tank (348) and/or finished by the gas tank that spare tyre (314) forms normally.These gas tanks are full of by the pressure fluid that compressor (142) produces.

Many siphunculus (170) are connected on the exhausr port of charge valve (154) and blow off valve (164) with fluid, and are connected on the admission port of shutoff valve (174).Many siphunculus (170) are connected first shunt conduit (352) that extends to propons and go up and extend to second shunt conduit (354) of front and back bridge, and are connected on the 3rd shunt conduit (356) that extends to rear rear axle.Shunt conduit (352) is connected on the propons quick release valve (358), and shunt conduit (354) is connected on the front rear axle quick release valve (360).Shunt conduit (356) is connected on the rear rear axle quick release valve (362).Quick release valve (358), (360) and (362) are structurally with use can be identical with above-mentioned quick release valve (180).Flowing of fluid controlled by propons disconnecting valve (364) between pipeline (170) and the shunt conduit (352), and simultaneously, the flowing of fluid that flows to shunt conduit (354) and (356) from many siphunculus (170) controlled by back axle disconnecting valve (366).Disconnecting valve (364) and (366) are the two-way cock open in usual of electromagnetic control, and this valve primary importance is an off-position, cut off flowing of fluid, and the second place is a control position, allow fluid to flow through.

Tire concentrates the operation of air inflator system (300) by central control unit (370) control, and this central control unit preferably adopts micro controller system.Certainly, other manual, electronic, mechanical and/or compressed-air controlled control units also can adopt.Control unit (370) is electrically connected at mechanical arm control desk (222), disconnecting valve (364), shutoff valve (174), pressure sensor (186), blow off valve (164), charge valve (154), disconnecting valve (366), speed sensor (372), constant pressure valve (340), low tension switch (374) on system's gas tank (348) is gone up and is connected on the constant pressure switch (376) on system's gas tank (348), so that receive its incoming signal and/or send control signal to it.The switch of mono-monitor pressures can place of switches (374) and (376).

As above summary when the charge operation mode, importantly will be kept pressure reduction bigger between supply gas pressure and the vehicle tyre pressure enough fluid flow rate when guaranteeing inflation of tire, and this speed is much larger than the leak rate of system.In general, vehicle compressor (142) does not have enough big capacity to fill with enough pressure fluids to tire to keep desired speed greater than the system leak rate.Therefore compressor (142) is used for maintaining the storage capacity that bigger pressure fluid is arranged in gas tank (348) and/or the spare tyre (314).In inflation during mode, if the middle pressure of gas tank (348) and spare tyre (314) is enough to make tire normally to be inflated, as being sent as shown in the signal to controller (370) by equalizer switch, controller will allow system to move continuously in the inflation mode.If but insufficient pressure in gas tank (348) and the spare tyre (314), then send a signal and stop the charge operation mode to controller (370) by low tension switch (374), that is: cut off the gas tank relief port, compressor (142) will be used for again to the gas tank inflation, up to producing proceeding of enough pressure permission charge operation again.

As top simply mentioned, have the vehicle of before driving one steering shaft at these, for example: 4 * 4; 6 * 6; 8 * 8, in the vehicle of type, consider the distribution of vehicle load, usually need to make front tyre to be filled with different pressure with the back tire.Tire of the present invention is concentrated air inflator system (300), has this function by disconnecting valve (364) and (366).In brief, connect disconnecting valve (364) and cut off disconnecting valve (366), the inflation pressure of tire (310) and (312) can irrespectively be monitored or be controlled with rear tyre.Equally, cut off disconnecting valve (364) and connect disconnecting valve (366), can monitor and/or control rear tyre (302), (304), the inflation pressure of (306) and (308), and irrelevant with front tyre (310) and (312).The most preferably, after the operator has selected required gas charging degree, for example, highway; Cross-country or mud ground/snowfield, controller (370) will automatically be adjusted the inflation pressure of front tyre and rear tyre independently.

As everyone knows, when vehicle ' surpasses certain speed, for example 40 miles/hour, tire should be inflated to its highway inflation pressure.Method explanation by way of example: to one 6 * 6 vehicle of uniform load basically, when the long-distance transport situation, the required inflation pressure of representative type rear tyre is 75psi, and the required inflation pressure of front tyre is 90psi.Inflation of tire to its road stress degree is in order to prevent undue wear and/or temperature build-up, this wearing and tearing and/or temperature build-up travel with quickish speed at vehicle, and inflation pressure of tire also can produce when being cross-country (30psi) or mud ground-snowfield (20psi) pressure.But system (300) is equipped with the speed sensor (372) such as monitor vehicle speed, and control unit (370) has logic control, relies on logic control after surpassing certain car speed that detects, and tire automatically is inflated to its road stress.

In the alternative embodiment of system (300), (seeing Figure 14), the tire of vehicle (302), (304), (306), (308), (310) and (314) in case of emergency can be used for to the brake and drive system for vehicle with tow air feed.In the pneumatic brake system of representative type truck, there is the capacity of about 3 cubic feet per Foot in the pneumatic brake system that comprises wet sump (332), and each tire has the capacity of about 8 cubic feet per Foot.Therefore, the tire of vehicle (comprising spare tyre (314)) can be considered to have the capacity that decuples the pneumatic brake system at least, as Figure 13 finding, spare tyre (314) and gas tank by pipeline (338) and (342) direct connection in pneumatic brake system (336).These pipelines are respectively by constant pressure valve (340) and boiler check valve (344) control.At any time, when the pressure in pipeline (334) and the fuel tank (332) during less than predetermined value, constant pressure valve (340) can both prevent that fluid from flowing to other parts that spare tyre, gas tank or tire are concentrated air inflator system from pipeline (334).This predetermined value selects approximately than the high 5～15psi of spring brake working pressure.For example, if the spring brake working pressure is 60psi, when then in a single day pressure drop to 65～75psi in pipeline (334), constant pressure valve (340) will cut off.Boiler check valve (344) is a check valve, only allows the pressure fluid in spare tyre (314) and the gas tank (348) to flow to brake system (336) from tire by pipeline (338).Therefore, when control unit (370) did not further move, spare tyre (314) and gas tank (348) will be as the urgent gas tanks of brake system (336).

Except the same with system (300) by alternative embodiment (400) the shunt conduit (402) of two-bit triplet flow divider valve (404) control.On flow divider valve (404) directly extends to fluid bonded assembly pipeline (50) with wheel end assembly (316) from one or a few shunt conduit (352), (354) and/or (356), and make quick release valve (358), (360) and/or (362) shunting.Valve (404) is preferably the solenoid electric valve by controller (370) operation, and its primary importance is for cutting off flowing of fluid by pipeline (402), holds (316) and allow fluid to flow to wheel from the intake and exhaust port (184) of quick release valve (358) by pipeline (50).It is that shutoff valve (358) and wheel are held the valve that flows by pipeline (50) between (316) that valve (404) can adopt the second place, and directly links up the fluid passage of taking turns between end (316) and the shunt conduit (352) by isocon (402).

In alternative embodiment (404), control unit (370) will be accepted the incoming signal of closing from the demonstration constant pressure valve of constant pressure valve (340), and this shows that the fluid pressure in pipeline (334) and the fuel tank (332) is in the potential danger value.Certainly, * formula fuel tank (332) or pipeline (334) can be mixed and be shown the read out instrument that is lower than required force value.At this moment, control unit (370) is measuring system pressure, that is, and and the force value of tire on the drive wheels, thereby the pressure when determining whether system pressure is higher than constant pressure valve and closes.If the system pressure in each tire, individually or fully be higher than the pressure of constant pressure valve (340) when closing, control unit (370) will make charge valve (154) and one or several disconnecting valve (364) and (366) open, and make one or several flow divider valve (404) be in its second place.The unlatching of disconnecting valve and charge valve will be to pipeline (352), (354) and/or (356) pressurization, the unlatching of each flow divider valve (404) will make connected control cock open, therefore by pipeline (170) pipeline (350) is pressurizeed, charge valve (154) makes the pressure fluid from tire flow to brake system (336) by shunt conduit (342) and boiler check valve (344) because pressure differential exists simultaneously.Because big ten times approximately of the volume ratio pneumatic brake systems of tire (302), (304), (306), (308), (310) and (312), the pressure of the every minimizing of tire 1psi all can make pressure that the pressure increase 10psi of pneumatic brake system fuel tank (332) and pipeline (334) should increase along with the operation of vehicle compressor (142) makes the pneumatic brake wet sump be forced into safety value.

Casehistory if pressure in all seven tires comprises spare tyre, reduces the gas-pressurized amount that 1psi will provide to pneumatic brake system (336), is enough to make the pneumatic brake system pressure to improve about 10～20psi.

When fuel tank is forced into appropriate value once more, disconnecting valve, flow divider valve and charge valve will be closed the permission system and be taked its normal mode of operation.

Can see a kind of by controller (502), best by concentrated air inflator system of microprocessor-controlIed tire and vehicle air maneuvering system (500) for choosing with reference to Figure 15.Group system (500) comprises a vehicle compressor (504) to main oil tank or gas tank (506) air feed, fuel tank (506) connects pressure sensor (508) with fluid, this pressure sensor provides the incoming signal that shows fuel tank (506) pressure to controller (502), and compressor comprises a mechanical arm (510) by controller output signal control.Fuel tank (506) is connected on the trunk line (512) that has an one way stop peturn valve (514) with fluid.Main delivery piping (512) comprises the many siphunculus parts (516) with the several bypass line of fluid communication (518), (520), (522) and (524).

Bypass line (518) concentrates the tire of air inflator system (10) air feed to concentrate air inflator system gas tank (526) with fluid communication to tire.Pressure sensor (528) provides the incoming signal that shows gas tank (526) pressure and controls fluid by the two position two-way valve (530) of controller (502) control to controller and flows to gas tank (526) by pipeline (518) from many siphunculus (516).

Bypass line (520) is with the pneumatic brake gas tank (532) of fluid communication to vehicle pneumatic brake (336) air feed.Pressure switch (534) provides to controller and shows that gas tank (532) pressure equals or exceeds the incoming signal of reference pressure.One way stop peturn valve (536) control fluid flows to brake system gas tank (532) by bypass line (520) from many siphunculus (516).

Bypass line (522) is with the vehicle air suspension gear gas tank (538) of fluid communication to vehicle air sprung parts (540) air feed.Pressure switch (542) provides the incoming signal that shows gas tank (538) pressure to controller (502).Two position two-way valve (544) control fluid by controller (502) control flows to gas-storing pipe (538) by bypass line (522) from many siphunculus (516).

Bypass line (524) with fluid communication to other vehicle operating devices (549), for example, the transmission gearshift, the connection of the other system gas tank (546) of air feed such as axial translation mechanism, pressure switch (548) provide the incoming signal that shows gas tank (546) pressure to controller (502).Two position two-way valve (550) control fluid by controller (502) control flows to gas tank (546) by pipeline (524) from thread a pipe (516) more.

Tire is concentrated air inflator system (10) to comprise reception respectively and is transmitted the incoming signal device (552) of input and output signal and the operation that output signal device (554) is controlled the concentrated air inflator system of tire in the above described manner to controller (502).Therefore, can see, be used for controlling tire and concentrate the controller of air inflator system operating function can be used for the remainder of control vehicle air system equally.Two position two-way valve (530), (544) and (550) are preferably and have first off position and cut off fluid and allow fluid to pass through the solenoid electric valve of pipeline (518) (520) and (524) respectively by the passage and second open position of pipeline (518), (520) and (524) respectively.Valve (530), (544) and (550) are preferably tended to its off position and can be operated separately.

The most preferably, controller (502) is equipped with logic control, each of various pressure fluids that is operated system (336), (10), (540) and (548) is specified a relative order by this logic control, and maintains required pressurization value with said system bonded assembly gas tank (532), (526), (538) and (546) according to coupled order respectively.Pneumatic brake system (330) and connected gas tank (532) are designated as at first order and will always be pressurized to the force value that equals at least in other gas tanks (526), (538) or (546) and the main oil tank (506).The pressure in gas tank (532) that controller shows according to the incoming signal of pressure sensor (534) will make controller protective valve (530), (544) and (550) be in its off position less than required pressure and compressor (504) is worked on.

With reference to Figure 16, can see a kind of alternative embodiment (600) of system discussed above (300).With the same in system (300), many siphunculus (170) are divided into bypass duct (354) and (356) of the admission port (178) that leads to quick release valve (560) and (362) respectively, the porting (184) of quick release valve (360) and (362) is connected with (604) with pipeline (602) respectively, guide into respectively and A-P tire (302) and (304) and back-rear tyre (306) and (308) bonded assembly wheel end valve assembly, these tires will have same pressurization value.The intake and exhaust port (182) of valve (360) and (362) is connected with exhausr port (368).

Embodiment (600) is that with system (300) difference intake and exhaust port (190) is not plugged, but is connected with fluid by pipeline (606).Therefore, the surface (220) of valve (360) and (362) all is subjected to the effect of equal pressure in all time.Certainly, the lower surface (220) of valve (360) and (362) can be with other fluid connection modes.

In system (300) and (600), when charge valve (154) when pulsing for systematic survey, tire control cock (58) will be held open, and pipeline (602) and (604) will be with fluid communication tyre cavity (74).

In system (300), each quick release valve (360) and (362) will make pipeline (602) or pipeline (604) exhaust, perhaps respectively pipeline (354) will be connected to fluid that pipeline (602) is gone up or pipeline (356) linked with fluid pipeline (354) and (602), pipeline (356) are equated with pressure in (604).Therefore, the pressure in the inner chamber (74) of pipeline (170), (354), (356), (602) and (604) and tire (302), (304), (306) and (308) all equals the pressure in minimum pressurization tire (302), (304), (306) and (308).This is understandable, because fluid connects intake and exhaust port (190), tire and ducted pressure will equal the average pressuure of tire (302), (304), (306) and (308), and have seldom or do not have at all the forced air loss on when measuring operating mode.

Can see another alternative embodiment (700) with reference to Figure 17.Embodiment (700) is not except adopting disconnecting valve (364) and (366), and is basic identical with system (300).Two-position three-way valve (702) simultaneously is preferably by the electromagnetic valve of controller control and be inserted in many siphunculus (170) and shunt conduit (352) and shunt conduit (354) and (356).Valve (702) have one be used for fluid passage between line of communication (170) and (152) and cut off pipeline (170) and (354) and (356) between the primary importance of fluid passage, and second place that is used to cut off the fluid passage between fluid passage between pipeline (170) and (352) and line of communication (170), (354) and (356).Can see that valve (702) allows propons and back axle are isolated so that be its inflation and/or exhaust independently.

As discussed above, tire concentrates air inflator system (300) to remain on steady state operation mode shown in Figure 6 usually, but because the operator has selected different inflation pressure of tires or different operation areas.Regular detection and/or definite vehicle of inflation pressure move when giving fixed reference velocity at least, and controller (370) will make system take pressure survey operating mode as shown in Figure 7, measure the inflation pressure of tire value that exists at present.System's inflation pressure of the present existence of measuring according to pressure sensor (186), system will end, and as shown in figure 10, adopt steady state operation mode shown in Figure 6 once more, maybe with taking inflation or operating method exhaust respectively, as Fig. 8 or shown in Figure 11.In these operating mode, a period of time is opened in charge valve (154) or exhaust (164), and system takes its pressure survey operating mode then, need to determine whether further inflation or exhaust.

Because only measuring system pressure accurately under metastable state, so pressure survey requires for some time.So ten minutes wishes to select to work as charge valve like this or blow off valve is held open during this period of time, reduces to air/exhaust and measuring period as far as possible little degree so that make.In order to realize this process, control unit (370) is furnished with operation logic control inflation/exhaust mode, therefore (this state is with tire and the present present serviceability of pressure of gas tank at the state that exists at present, the degree of utilization of pressure fluid, variations such as pressure reduction) under, system's inflation/exhaust is given phase speed and can be estimated.Like this, the time that this section inflation or blow off valve are held open before pressure survey also can accurately be estimated.

In order to finish said process, after initial pressure was measured, inflation or exhaust valve opening were measured inflation pressure after first period once more.In whole initial time, can produce the curve of an estimated pressure rate of change according to the variation control unit of measured pressure, and, according to the rate of pressure change of this calculating with reach desirable pressure and the required pressure changing value, can calculate before the pressure that exists of resurveying, inflation or blow off valve are held open during this period of time.

Can see this example of operating with the logic control of operating method exhaust that is used to inflate with reference to Figure 18.For charge operation, suppose I.Be by pressure sensor measure in time T ₀The initial pressure value, IF is the pressure of selecting, control unit will make air inflator system (10) take its as shown in Figure 8 to charge operation mode under first period, in time T ₁Following control unit will make air inflator system take to be pressure survey operating mode shown in Figure 7, and measure inflation pressure I at that time ₁At I ₀And I ₁On the basis of value, microprocessor controller will produce a shape of giving the inflation curve (378) of phase, and the generation of this curve is to be based upon incoming signal I ₀, I ₁With on the data basis of some storage.According to the shape of giving phase inflation curve (378), controller will make system take one section additional period T of its charge operation mode ₂, at (T ₁+ T ₂) during this period of time in, will be once more gaging pressure, need to determine whether further inflation and/or exhaust.Can see, for bleeding, according to the force value D of initial measurement ₀With the inflation pressure value D that measures ₁, system is in the T of operating method exhaust shown in Figure 11 ₁After time, micro controller system will produce an exhaust curve (380) that gives the phase, and make system be in operating method exhaust a period of time T once more ₃At (T ₁+ T ₃) when finishing during this period of time, system will take the pressure survey operating mode once more, thereby to determine whether being to need further inflation or/and exhaust reaches needed resulting pressure DF.

Certainly, be appreciated that, the shape of inflation and exhaust curve (378) and (380), to concentrate the available pressure in the air inflator system, the available pressure of brake system according to initial inflation process pressure, the tire of the tire that will control to a great extent respectively, the state of other vehicle launch devices, the state of compressor will be inflated and/or the tire quantity of exhaust and other transformable factor and change.By adopting said method, can tonometric frequency and chance will be required, and the time limitation that requires to make system be in the pressure survey operating mode is to minimum, thereby the inflation of tire that will control or exhaust make it reach the time limitation of required pressure to minimum from initial pressure.Gas overcharging and/or exhaust when the application of said system equally can be with inflation of tire and bleeding are restricted to minimum, if this situation may appear at operating mode a period of time that system allows to remain on inflation or exhaust, and do not depend on inflation or the deflation rate of concentrating the relevant estimation of air inflator system situation at that time with tire.

Although introduced most preferred embodiment of the present invention with certain detailed degree,, be to be understood that, can take the replacement of some parts and rearrange, and not break away from essence of the present invention and the scope that requires below.

Claims (59)

1, a kind of control setup (142 that includes selectively to first pipeline (170) pressurization and exhaust, 156,164,154,172) and the tire that can be installed in the tire valve nozzle assembly (56 and 58) on the inflatable tyres (12) rotatably concentrate air inflator system (10), said system is characterised in that:

Have one and be connected first intake and exhaust port (178) on above-mentioned first pipeline (170) with fluid; Be connected to second intake and exhaust port (182) of atmosphere and be connected to the blowdown valve (180) of the 3rd intake and exhaust port (184) on second pipeline (50) with fluid; Above-mentioned blowdown valve can be automatically according to the above-mentioned first and second ducted pressure, link up flowing of fluid between above-mentioned first and second pipelines, and when the above-mentioned first ducted pressure is equal to or higher than pressure in above-mentioned second pipeline (50), cut off above-mentioned second intake and exhaust port and link up flowing of fluid between above-mentioned second pipeline and above-mentioned second intake and exhaust port; And when being higher than in above-mentioned first pipeline pressure, the above-mentioned second ducted pressure cuts off above-mentioned first intake and exhaust port; Have with fluid and be connected the 4th intake and exhaust port (62) on above-mentioned second pipeline (50), with above-mentioned tire valve nozzle assembly (56) and (58) with fluid and above-mentioned tyre cavity (74) bonded assembly the 5th air inlet-outlet pipe (68), the fluid that this tire valve nozzle assembly can automatically be linked up and cut off between above-mentioned the 4th intake and exhaust port (62) and the 5th intake and exhaust port (68) according to the above-mentioned second ducted pressure flows.

2, tire according to claim 1 is concentrated air inflator system, it is characterized in that described tire valve nozzle assembly (56) and (58) comprise an infrabar shutoff valve (56) and a control cock (58).Described infrabar shutoff valve (56) and control cock (58) can be higher than first at second pipeline (50) moulding pressure and give when deciding reference pressure, the fluid of linking up between above-mentioned the 4th intake and exhaust port (62) and the 5th intake and exhaust port (68) flows, and be no more than when giving fixed maximum reference pressure when the pressure in above-mentioned second pipeline (50) is no more than pressure in above-mentioned first reference pressure and the above-mentioned tyre cavity, the fluid that cuts off between the above-mentioned the 4th and the 5th intake and exhaust port flows.

3, tire according to claim 2 is concentrated air inflator system, wherein, above-mentioned second pipeline comprises the first (50) that is fixed on the above-mentioned vehicle, with the second portion (52) of above-mentioned tire rotation be inserted in annular seal space (32) in above-mentioned first and second parts.

4, tire according to claim 3 is concentrated air inflator system, wherein, above-mentioned control setup comprise can and source of pressurised fluid (142) bonded assembly the 3rd pipeline (144), one has with the 6th intake and exhaust port (146) of above-mentioned the 3rd plumbing connection and has charge valve (154) with the 7th intake and exhaust port (166) of above-mentioned first plumbing connection; One has and the 8th intake and exhaust port (152) of the 3rd plumbing connection and the 9th exhaust duct (158) of above-mentioned first plumbing connection, and and to the pressure regulating valve (156) of exhausr port bonded assembly the tenth exhaust duct (190) of atmospheric exhaust; One have with the 11 intake and exhaust port (172) of above-mentioned first plumbing connection and and the blow off valve (174) of atmospheric exhaust mouth bonded assembly the 12 intake and exhaust port (176); Be used for linking up selectively and cutting off first controller of fluid passage between the above-mentioned the 6th and the 7th intake and exhaust port; Be used to link up and cut off the second control device of fluid passage between above-mentioned the 8th intake and exhaust port and above-mentioned first pipeline and the 3rd control setup that is used to link up and cut off fluid passage between the above-mentioned the 11 and the 12 intake and exhaust port.

5, tire according to claim 4 is concentrated air inflator system, and wherein above-mentioned second control device is a blow off valve (164).

6, tire according to claim 5 is concentrated air inflator system, wherein above-mentioned charge valve, and above-mentioned blow off valve and above-mentioned shutoff valve are solenoid electric valve.

7, tire according to claim 5 is concentrated air inflator system, additionally comprises a pressure sensor (186) with above-mentioned first plumbing connection, and this pressure sensor provides the output signal of pressure in above-mentioned first pipeline of demonstration.

8, tire according to claim 7 is concentrated air inflator system, adds the mechanical arm that comprises by selecting arrangement (222) driving of operator's control, is used for selecting the required moulding pressure of above-mentioned inner chamber of above-mentioned tire.

9, tire according to claim 1 is concentrated air inflator system, wherein above-mentioned second pipeline comprises a first that is fixed on the above-mentioned vehicle, second portion with the rotation of above-mentioned tire, and be inserted in annular seal space in above-mentioned first and second parts.

10, tire according to claim 9 is concentrated air inflator system, and wherein the above-mentioned first of above-mentioned the 3rd intake and exhaust port of above-mentioned blowdown valve and above-mentioned second pipeline is linked up.

11, concentrate air inflator system according to claim 6 or 9 described tires, wherein, the above-mentioned the 4th and the 5th intake and exhaust port comprises the single fluid passage with above-mentioned tire valve component internal.

12, concentrate air inflator system according to claim 1 or 3 described tires, wherein, above-mentioned blowdown valve has first valve seat (204) and second valve seat (212) that is inserted in the above-mentioned second and the 3rd intake and exhaust port that is inserted in the above-mentioned first and the 3rd intake and exhaust port; One can with first valve part (202) of the above-mentioned first valve base sealing combination and one can with second valve part (219) of the above-mentioned second valve base sealing combination; Above-mentioned first valve part is determined first valve surface (218) that always is communicated with above-mentioned first pipeline fluid and second valve surface (220) that always is communicated with above-mentioned second pipeline fluid; The area of above-mentioned first valve surface is greater than the area of above-mentioned second valve surface; Fluid pressure on above-mentioned first valve surface forces the tight connection of above-mentioned first valve part disengagement and above-mentioned first valve seat effectively, and the fluid pressure on above-mentioned second valve surface forces the tight connection of above-mentioned second valve part disengagement and above-mentioned second valve seat effectively.

13, concentrate air inflator system according to claim 3 or 12 described tires, wherein, above-mentioned blowdown valve is between above-mentioned first pipeline and above-mentioned annular seal space.

14, tire according to claim 7 is concentrated air inflator system, wherein, above-mentioned vehicle comprises one by providing the compressor (142) of pressure fluid to above-mentioned pneumatic brake gas tank on the pneumatic brake system (336) of pneumatic brake gas tank (332) air feed and the car; Above-mentioned tire concentrates the air inflator system pressure source to comprise above-mentioned compressor, pneumatic brake gas tank pressure sensor apparatus (374), (376), and by the constant pressure valve device of above-mentioned pneumatic brake pressure apparatus control, it flows to above-mentioned tire from above-mentioned compressor and concentrates air inflator system if above-mentioned pneumatic brake gas tank pressure is lower than when giving fixed pneumatic brake gas tank minimum pressure reference value pressure fluid in order to prevent.

15, tire according to claim 14 is concentrated air inflator system, wherein, tire concentrates the source of pressurised fluid of air inflator system to comprise that a tire concentrates air inflator system gas tank (314) and with fluid above-mentioned tire is concentrated air inflator system gas tank and above-mentioned pneumatic brake system's bonded assembly and flowed to the 4th plumbing installation (342) of above-mentioned pneumatic brake system from the concentrated air inflator system of above-mentioned tire by the fluid that only allows that check valve (344) is controlled.

16, tire according to claim 15 is concentrated air inflator system, adds to comprise the 5th pipeline (402), and it shunts above-mentioned blowdown valve (358), and the direct fluid of above-mentioned first pipeline (352) and above-mentioned second pipeline (50) is connected; Fluid by above-mentioned isocon is by a bi-bit bi-pass normally closed valve (404) control, and this valve has the off position of a cut-out by above-mentioned the 14 pipeline fluid, and communication flows to the open position of the fluid passage of above-mentioned the 14 pipeline; Above-mentioned flow divider valve is controlled by above-mentioned control setup.

17, tire according to claim 1 is concentrated air inflator system, the additional isocon (402) that comprises connects the flow divider valve (404) that above-mentioned first pipeline and above-mentioned second pipeline and control flows are crossed above-mentioned isocon fluid in order to fluid, above-mentioned flow divider valve trends towards usually when primary importance cutting off and flows through the fluid of above-mentioned isocon, and is movable to the second place and links up the passage that flows through above-mentioned isocon fluid.

18, tire according to claim 6 is concentrated air inflator system, and wherein, above-mentioned charge valve and above-mentioned blow off valve are normally closed valve and above-mentioned shutoff valve is a normally open valve.

19, a kind of tire the extremely basic equal pressure of first and second tire pressurization is concentrated air inflator system (600), and this system comprises:

Be used for selectively control setup to pressurization of first pipeline and exhaust;

One has and is used for first intake and exhaust port that fluid connects above-mentioned first pipeline.Be used for that fluid connects second intake and exhaust port of atmosphere and first blowdown valve of the 3rd intake and exhaust port that is connected with second pipeline; Above-mentioned blowdown valve automatically responds the above-mentioned first and second ducted pressure and can pressure is equal to or higher than the second ducted pressure in above-mentioned first pipeline time, links up the fluid passage between above-mentioned first and second pipelines, cuts off above-mentioned second intake and exhaust port; When if the above-mentioned second ducted pressure is higher than the above-mentioned first ducted pressure, links up fluid passage between above-mentioned second pipeline and above-mentioned second intake and exhaust port and cut off above-mentioned first intake and exhaust port.

First round tyre valve nozzle assembly is rotatably installed on the above-mentioned first inflatable tire, and have be used for fluid connect above-mentioned second pipeline the 4th intake and exhaust port and with above-mentioned first tire in pressurizing chamber fluid bonded assembly the 5th intake and exhaust port; Above-mentioned tire valve mouth device automatically responds the pressure of above-mentioned second pipeline, thereby links up and cut off the fluid passage between above-mentioned the 4th intake and exhaust port and above-mentioned the 5th intake and exhaust port;

One has and is used for the 6th intake and exhaust port that fluid connects above-mentioned first pipeline, be used for fluid connect atmosphere the 7th intake and exhaust port and with second blowdown valve of the 8th intake and exhaust port of the 3rd plumbing connection; Above-mentioned blowdown valve automatically responds the pressure of fluid in the above-mentioned first and the 3rd pipeline, and when pressure in above-mentioned first pipeline is equal to or higher than in the 3rd pipeline pressure, link up the fluid passage between above-mentioned the 6th intake and exhaust port and the 3rd pipeline, and cut off above-mentioned the 8th intake and exhaust port, and the time when the above-mentioned the 3rd ducted pressure is higher than the above-mentioned first ducted pressure, link up the fluid passage between above-mentioned the 3rd pipeline and above-mentioned the 8th intake and exhaust port, and cut off above-mentioned the 6th intake and exhaust port.

The second tire valve mouth device is rotatably installed on the above-mentioned second inflatable tire, and have be used for fluid connect above-mentioned the 3rd pipeline the 9th intake and exhaust port and with above-mentioned second tire in pressurizing chamber fluid bonded assembly the tenth intake and exhaust port; The above-mentioned second tire valve nozzle assembly automatically responds pressure in above-mentioned the 3rd pipeline, thereby link up and cut off pressure in above-mentioned the 9th intake and exhaust port and above-mentioned the 3rd pipeline, thereby link up and cut off the fluid passage between above-mentioned the 9th intake and exhaust port and above-mentioned the 4th intake and exhaust port;

One connects the above-mentioned the 3rd and the 4th pipeline (606) of above-mentioned the 8th intake and exhaust port with fluid.

20, a kind of be used to equip vehicle-mounted compressor and had by the tire of the vehicle of this compressor gas supplied pneumatic brake gas tank concentrate air inflator system, above-mentioned tire concentrates air inflator system to comprise:

First pipeline that connects above-mentioned pneumatic brake gas tank with fluid;

Connect above-mentioned first pipeline with fluid, be used for selectively control cock device to pressurization of second fluid line and exhaust;

Connect above-mentioned second pipeline with fluid, with the tire valve mouth device that is connected the 3rd pipeline on the pressurizing chamber in the inflatable tyres with fluid, above-mentioned tire valve mouth device automatically responds second pipeline and the 3rd ducted fluid pressure, thereby links up and cut off the fluid passage between the above-mentioned second and the 3rd pipeline;

Be used for detecting above-mentioned tire inflation pressure device;

Be used for detecting the device of above-mentioned pneumatic brake gas tank inflation pressure;

Be used for when above-mentioned pneumatic brake gas tank fluid pressure value when fluid pressure is higher than the second reference pressure value in the above-mentioned tyre cavity less than giving fixed minimum pneumatic brake reference pressure value, fluid connects above-mentioned first and the device of the 3rd fluid line.

21, tire according to claim 20 is concentrated air inflator system, and wherein, above-mentioned first pipeline comprises first and second parallel legs; Add and comprise that one controls flow to the constant pressure valve of the above-mentioned first branch road fluid and the one way stop peturn valve that control flows is crossed the above-mentioned second branch road fluid; Above-mentioned constant pressure valve has only when the force value in the above-mentioned pneumatic brake gas tank surpasses and above-mentionedly allows fluid from above-mentioned pneumatic brake gas tank flow direction control valve device when giving fixed minimum pneumatic brake force value, and above-mentioned one way stop peturn valve only allows fluid to flow to above-mentioned pneumatic brake gas tank from above-mentioned control setup.

22, tire according to claim 21 is concentrated air inflator system, and wherein, the device of pressure comprises the device that detects above-mentioned constant pressure valve opening and closing position in the above-mentioned pneumatic brake gas tank of above-mentioned detection.

23, tire according to claim 21 is concentrated air inflator system, additionally comprises that a tire that is inserted on above-mentioned first and second branch roads and the above-mentioned control setup with fluid concentrates the air inflator system gas tank.

24, the concentrated air inflator system of tire according to claim 1 is the vehicle that is used to have at least one first inflatable tyres and at least one second inflatable tyres, under the selectable situation of at least one cover, above-mentioned first round mold has required inflation pressure to be different from the required inflation pressure of second tire; This system adds and comprises a controller that is used to select required inflation pressure of tire value, and first and second fluid line arrangements (352), (354) respectively above-mentioned first and second tires are connected on the said system control setup with fluid, this system control device response is linked up above-mentioned two plumbing installations and source of pressurised fluid with fluid from the signal of above-mentioned controller; Disconnecting valve device (364,366) one of between said system control cock and above-mentioned tire, be inserted in above-mentioned at least first and second plumbing installations, this disconnecting valve device has primary importance, link up said system control cock device and and one of the aforementioned tube duct device above-mentioned tire of bonded assembly between the fluid passage, this valve also has the second place, cut off said system control cock device and and one of the aforementioned tube duct device above-mentioned tire of bonded assembly between the fluid passage, herein, above-mentioned first and second tires can be spaced from each other, and it can independently be pressurizeed.

25, tire according to claim 24 is concentrated air inflator system, and wherein, above-mentioned disconnecting valve device comprises a two position two-way valve.

26, tire according to claim 25 is concentrated air inflator system, and wherein, above-mentioned two position two-way valve is a solenoid electric valve.

27, tire according to claim 26 is concentrated air inflator system, and wherein, above-mentioned disconnecting valve device comprises first disconnecting valve that is inserted in above-mentioned first plumbing installation, and second disconnecting valve that is inserted in above-mentioned second plumbing installation.

28, tire according to claim 25 is concentrated air inflator system, wherein, above-mentioned disconnecting valve comprises a two position three-way valve (404), this valve has the fluid passage of linking up between said system control cock device and above-mentioned first plumbing installation, and cuts off the primary importance of fluid passage between said system control cock device and above-mentioned second plumbing installation; This valve also have link up fluid passage between said system control cock device and above-mentioned second plumbing installation and cut off the second place of fluid passage between said system control cock device and above-mentioned first plumbing installation.

29, tire according to claim 28 is concentrated air inflator system, and wherein, above-mentioned disconnecting valve is a solenoid electric valve.

30, concentrate additional first and second quick release valves that are inserted in respectively between above-mentioned first and second plumbing installations and above-mentioned tire and the disconnecting valve that comprise of air inflator system according to claim 24 or 26 described tires, this quick release valve has first intake and exhaust port that is communicated with above-mentioned control cock device with fluid, also have with fluid and be communicated with second intake and exhaust port of above-mentioned tire and the 3rd intake and exhaust port that is communicated with exhausr port with fluid, above-mentioned quick release valve, when the pressure at the above-mentioned first intake and exhaust port place is higher than the pressure at the above-mentioned second intake and exhaust pipeline place, link up the fluid passage between its above-mentioned first and second intake and exhaust ports, when the pressure at the above-mentioned second intake and exhaust port place is higher than the pressure at the above-mentioned first intake and exhaust port place, link up the fluid passage between above-mentioned second intake and exhaust port and above-mentioned the 3rd intake and exhaust port, thus, the pressure in its above-mentioned first and second intake and exhaust ports will equate when force value equals in first and second intake and exhaust ports lower pressure value.

31, tire according to claim 30 is concentrated air inflator system, wherein above-mentioned vehicle comprises and the above-mentioned first tire bonded assembly propons, and with the above-mentioned second tire bonded assembly back axle, at least under the state of a cover operation vehicle, above-mentioned first round mold has and is higher than the required inflation pressure of above-mentioned second tire, when all tire all needs pressure boost, this system can make above-mentioned first and second spacer assemblys be positioned at its primary importance, all be forced into the required inflation pressure of above-mentioned second tire up to above-mentioned all tire, then, make the above-mentioned second disconnecting valve device take its second place, keep the above-mentioned first disconnecting valve device to be positioned at its primary importance simultaneously, so that continue to increase the inflation pressure of first tire.

32, a kind of method of controlling the inflatable tyres inflation pressure comprises following several steps:

A, provide one to comprise that the tire that is connected on the source of pressurised fluid concentrates air inflator system, an exhaust gear, one away from the pressure sensor of inflatable tyres and the device that is used to select the required pressure of above-mentioned inflatable tyres;

The required inflation pressure that b, detection inflatable tyres are selected;

C, make pressure sensor be subjected to being substantially equal to the fluid pressure of above-mentioned inflation pressure of tire, so that measure and storage initial inflation process force value;

D, initial inflation process force value and required force value are compared;

If the required force value of e surpasses the initial inflation process force value, then above-mentioned inflatable tyres inner chamber is connected to source of pressurised fluid the preceding paragraph reference time; If the initial pressure value surpasses required force value, then above-mentioned tyre cavity is connected exhausr port the preceding paragraph reference time;

F, make pressure sensor be subjected to probably equaling controlling the fluid pressure of the inflation pressure of tire, so that measure the second reference pressure value;

G, when above-mentioned source of pressurised fluid is connected above-mentioned tyre cavity with fluid and when above-mentioned exhausr port is connected in the above-mentioned tire pressurizing chamber with fluid, determine the expection speed that an above-mentioned tire pressure changes.

33, the method for control inflation pressure according to claim 32, additional comprising the steps:

The rate of pressure change that h, calculating are crossed with aforementioned calculation is forced into the time interval that required inflation pressure should keep to above-mentioned tyre cavity;

If i above-mentioned required force value in the required time that aforementioned calculation is crossed surpasses above-mentioned reference pressure value, then above-mentioned tyre cavity is connected above-mentioned source of pressurised fluid, if above-mentioned reference pressure value surpasses required force value in the required time that aforementioned calculation is crossed, then above-mentioned tyre cavity is connected above-mentioned exhausr port.

34, method according to claim 33, wherein, the expection speed that above-mentioned tire pressure changes is defined as the function of difference between above-mentioned reference time and above-mentioned initial inflation process pressure and above-mentioned second reference pressure.

35, method according to claim 34, wherein, the function of above-mentioned reference time as difference between above-mentioned required inflation pressure and the above-mentioned initial inflation process pressure is variable.

36, method according to claim 34, wherein, above-mentioned tire concentrates that air inflator system is additional to comprise a controller that has the device of the incoming signal that receives the inflation pressure of tire that shows the inflation pressure of tire that detects and selection.Device and a generation of being used to store input value are used to operate the device that above-mentioned tire is concentrated the output signal of air inflator system.

37, according to claim 33 or 34 described methods, wherein, above-mentioned tire concentrates air inflator system to comprise on first pipeline that is connected above-mentioned source of pressurised fluid and above-mentioned exhausr port by control cock and tire valve nozzle assembly selectively, and above-mentioned tire valve nozzle assembly connects above-mentioned tyre cavity with fluid and can link up or cut off fluid passage between above-mentioned first pipeline and the tyre cavity.Above-mentioned pressure sensor is communicated with above-mentioned first pipeline with fluid, wherein tonometric step c, f and h comprise the fluid passage of linking up between above-mentioned first pipeline and the above-mentioned inner chamber, cut off fluid then and flow to the fluid passage of above-mentioned first pipeline from source of pressurised fluid, again, allow above-mentioned first fluid pipeline stabilization in the force value that equals above-mentioned chamber pressure substantially.

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