CN1221687A - Automotive tyre explosion safety tyre pressure indicating adjustable suspension system - Google Patents
Automotive tyre explosion safety tyre pressure indicating adjustable suspension system Download PDFInfo
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- CN1221687A CN1221687A CN 97107850 CN97107850A CN1221687A CN 1221687 A CN1221687 A CN 1221687A CN 97107850 CN97107850 CN 97107850 CN 97107850 A CN97107850 A CN 97107850A CN 1221687 A CN1221687 A CN 1221687A
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Abstract
An adjustable suspended system able to indicate the pressure in tyre and ensure the safety when the tyre explodes has a sensor to measure the pressure in tyre. The signal are processed by electronic system to indicate the pressure in tyre at any time. It has under-pressure alarm function. If tre explodes, the boosting suspended system and brake force balance unit start to raise up the car body inclining down to restore the normal running, force balance and brake force balance, preventing car from being sliding sideward, running is slanting direction, or turned over. The height of car body, rigidity of suspended system and damping parameters can be adjustable. Its advantages are simple structure and not increasing load of spring.
Description
The present invention is that a kind of automotive tyre explosion safety tyre pressure shows and adjustable suspension system.
Blowing out is the grave accident that may occur in the running car, under high speed, heavy duty, causes automobile sideslip, sideslip, bumper car, even topples especially.To this problem, major technique achievement and method have both at home and abroad at present: improve tire quality, grade and explosion-proof performance, for example, go into steel mesh or explosion-proof layer in that cover tire is mid-, adopt polyembryony, many air chambers inner tube of a tyre, accessory whorl is set, replace inflated wheel etc. with the on-inflatable wheel, but, adopt high-grade, grade tire and many air chambers inner tube of a tyre, can not solve the problem of blowing out at all and increase productive costs, setting up accessory whorl increases quality under the spring greatly, position and space difficulty are set in the car, influence dynamic wheel balancing and location; The on-inflatable wheel also may not replace inflated wheel, and all make running car in varying degrees because of the reason of aspects such as its carrying, rideability, production technology and price, the operating characteristic variation, thereby do not obtain actual promotion and application so far.
The purpose of this invention is to provide a kind of by blow out, tire pressure signal transducer, adjustable lift suspension, brake-force balance device, electronic processing control system, the system that liquid gas or electromagnetic actuator constitute.After blowing out, by having a down dip of lift mechanism automatic compensation vehicle body, recovery is in time travelled and the force balance state normally, glancing impact, the brake-force balance device makes car load, blow out wheel and the non-wheel of blowing out obtain a balanced system power, avoids automobile sideslip, sideslip, out of control even topple, but and applying electronic regulation device or manual unit, regulation and control lift suspension height, rigidity and damping parameter show tire pressure or undervoltage warning by means of the wheel tyre pressure sensor.
The object of the present invention is achieved like this: system sensor adopts force-sensing sensor, wherein pressure sensing part (1) is arranged at rotating-wheel, A, tire pressure is changed into the displacement geometric sense with the mechanical elastic sensing member, B, tire pressure is changed into electromagnetism, infrared or ultrasonic active signal with electric electric capacity, pressure drag, piezoelectricity, strain sensing spare, another part is arranged at axletree or other non-rotating position of vehicle body, sensing member (2): A, the displacement geometric sense is converted to electric signal, B, receives its electromagnetism, infrared or ultrasonic active signal by receptor; Signal is handled through electronic system (3), show tire pressure or undervoltage warning by telltale (8), when blowing out, output tire pressure signal is an extreme value, pneumatic or the electromagnetic actuator of one tunnel signal of tyre burst control wherein starts the lift suspension composite structure (5) that is arranged between wheel, car sedan-chair and the vehicle frame or independent lift mechanism, to gas, hydropneumatic active suspension automobile, control bodywork height control mechanism rises the vehicle frame that descends because of blowing out and timely automobile normal running and the force balance of recovering; The brake-force balance device (6) of another road control setting in brake line of output signal of tyre burst, this device mainly is made of transfer valve, apportioning valve, and glancing impact provides a braking force that balances each other with the non-wheel of blowing out to the wheel of blowing out; Utilize gas, liquid lift cylinder or gas, gas-liquid suspension, active suspension in the lift mechanism, the shock absorber resistance adjustment mechanism, by electrical control actuator, or manual unit, can regulate suspension height, rigidity, damping parameter; The composite structure that lift mechanism adopts oil, gas piston or forms with other mechanical lift mechanism, independent or with suspension compound (26-108); Lift mechanism propulsion source is: one, high pressure gas generator (109-120), adopt gas generant reaction, detonation in the container, or liquid gasifies rapidly and produces the technical scheme of the external work done of high pressure gas, light initiating agent (118) on every side by pilot burner (115), gas generant (119) reaction or liquid, blue gas are gasified rapidly, and the gas of exothermic heat of reaction needs after filtration that (120) and cooling mechanism (113) enter storage space (112); Two, mechanical accumulator or its composite structures (121-132) such as gas-liquid piston, bellows, air bag, barrier film provide energy storage power by automotive engine, motor-drive pump or manual pumps (128).
A, force-sensing sensor, mechanical elasticity pressure-sensing spare adopts bellows (13), piston (12), bellows, film or its assembly set, be fixed in rim for automobile wheel, connect tire pressure or place wheel rim and the inner tube of a tyre between, establish elastic component (14) and Tyre pressure balancer in the sensing member, tire pressure varies is changed into the displacement of gauge head (15), sensor another part is arranged at the nonrotational part of automobile, (16) two or three of its displacement sensing spares are evenly arranged with gauge head (15) approaching along the wheel sagittal plane, and in its operating distance linearity range scope, be noncontact measurement, gauge head is with wheel, during by displacement sensing spare, by displacement sensing spare output pulse signal, amplify through electronic system, handle, by several displacement sensing spare sensing signals are handled, can eliminate the measured error that the wheel runout brings, unit time step-by-step counting reflection vehicle wheel rotational speed, relative distance when pulse amplitude is represented displacement sensing spare by gauge head, when blowing out, the impulse singla amplitude is an extreme value, treated and logical AND gate circuit, control lift mechanism or bodywork height control cock and brake-force balance device guarantee not take place misoperation, displacement sensing spare adopts Hall, magnetic resistance, literary composition brother magnetosensitive parts such as (wiegord), high frequency, magnetic is approaching to wait on-off element, or magnet coil makes it to become the generator-type sensor;
B, electric sensing part are fixed in wheel rim, adopt piezoelectric type, mainly are made of piezoceramic (17) upper/lower electrode (18), lead-in wire (19), piezoelectrics are applied voltage, make its vibration, tire pressure acts on piezoelectrics, the piezoelectrics resonant frequency is changed, frequency change value reflection tire pressure varies; They are two years old, pressure resistance type is mainly by high pressure chest (21), low-pressure cavity (22), silicon ring (23), silicon diaphragm (24), lead-in wire (25) constitutes, when there is differential pressure in the diaphragm two ends, under stress, the electric bridge lack of equilibrium that 4 resistance that diffusion is made in its semiconductor crystal matrix constitute, the output relevant voltage, sensor circuit adopts corresponding constant current or constant voltage, amplify, oscillating circuit, transmission circuit is mainly by free running multivibrator, high frequency transmission circuit constitutes, with establishing: A, shake the control switch, in the time of need showing tire pressure for chaufeur, control at operator's compartment, B, the tire pressure diaphragm switch, automatically connect the working sensor circuit when blowing out, this mode makes work-hours extremely short, can not change minicell for a long time, acceptor circuit is mainly by filtering, voltage stabilizing, one, two utmost points amplify, frequency-selecting is amplified, power amplifier, receive head, switch signal generator constitutes, and is arranged at operator's compartment or the position approaching with feedway, and output tire pressure signal is an extreme value when blowing out, handle through electronic system, control electromagnetic actuator tripping force rises mechanism and brake-force balance device.
Lift mechanism can constitute lift suspension composite structure with the various suspensions of Mai Fuxun, candle formula, traveller swing arm, steel spring, or is independent lift mechanism; Adopt the unification of lift and cushion cylinder, compound, twin-tub, single, double piston and the many bell structures of free piston;
Type A, the compound lift piston barrel (37) of suspension shock-absorber urceolus (27), link with dashpot piston bar (31) at the bottom of it, two constitute a lift cylinder (38), in the cylinder or establish a bellows or flexible air-bag again, the control cock (39) that links by air inlet pipe (40) on the lift piston barrel or in the dashpot piston bar is communicated with lift gas or hydraulic power source, the dashpot piston masthead has an automatically controlled damper regulation mechanism (44), by regulating the internally-controlled rod (45) on the hollow piston bar, rotovalve (46) changes piston or piston rod cutoff port aperture, regulate damping, the lift piston barrel is provided with damper spring (41) outward, by regulating lift cylinder or cylinder inner corrugated pipe, air pressure in the flexible air-bag, regulate the suspension height, rigidity, by dashpot piston (32), valve (34) on damper cylinder (26) bottom valve (29), cutoff port (33) are realized stretching and compression stroke different damping double-acting type vibration damping;
Type B, suspension is by traveller (59), hollow draw-bar (61) fixing on traveller inner carrier (60) piston constitutes lift cylinder (62) jointly, counteraction vibration damping chamber (63), annular compartment (64), available charge valve (70) is inflated to the lift cylinder, suspension is risen, during pistons work, damping liquid is by connecting piece (67), cutoff port (68), valve (69), in vibration damping chamber and annular chamber, flow, realize Compression and Expansion different damping double acting vibration damping, appendix (66) can be used in top, vibration damping chamber, charge valve (67) injects pressure gas, and traveller is provided with damper spring (71) outward;
Type C, suspension shock-absorber uses the lift hydraulic power source, control cock (77) on interior pipe (75) the control dashpot piston (79) in hollow piston bar (74), change on the dashpot piston, in the connection, the aperture of the valve of cavity of resorption (83) and hole (82), close in the connection when blowing out, the passage of cavity of resorption cutoff port (82) flow regulating valve (83), cushion cylinder becomes a lift cylinder, the cushion cylinder bottom is communicated with the lift hydraulic power source by a control cock (81), under the hydraulic coupling that enters, piston rises, the epicoele damping liquid enters lift liquid storage cylinder (85) between the inner/outer tube by by pass valve (84), during vibration damping, by dashpot piston (79) and bottom valve (86) and last set valve thereof, cutoff port, the vibration damping liquid storage cylinder (87) of inner/outer tube bottom is realized the double acting vibration damping, is communicated with two cylinder by a valve (88) between vibration damping and lift liquid storage cylinder;
In type D, the suspension shock-absorber, one lift piston (90) and piston rod (91) are set in the hollow dashpot piston pull bar (89), lift piston rod (91) is locked by lockable mechanism (92) with dashpot piston pull bar (89), when starting lift mechanism, the lift liquid gas pressure is derived from the moving lockable mechanism of opening, and enters lift cylinder (94) by pipe (93) in control cock, the lift piston rod, limits its lift by the lift stop block, shock absorber peripheral hardware damper spring, cushion cylinder are that (95), liquid storage cylinder are (96);
One free piston (97) is set at the bottom of type E, suspension shock-absorber, the cushion cylinder, the cushion cylinder bottom is communicated with the liquid gas pressure source by control cock (98), control cock is opened when blowing out, free piston rises, lift dashpot piston (100) by damping block on the free piston (99), damping liquid enters liquid storage cylinder (105) by the by pass valve on interior pipe (102), by pass valve (103) or the damper cylinder in the piston rod (101) in the cylinder;
Type F, suspension vibration damping lift two cylinder polyphone arrange that vibration damping and lift piston link with piston rod respectively in two cylinder, the lift cylinder is communicated with lift gas, hydraulic power source by control cock, and other structure all can adopt various independent suspension structures;
Type G, lift unit are piston type, independent or compound with shock absorber, with the supporting use of steel spring dependent suspension, one, be arranged between steel spring (143) and wheel transverse axis fixed position (144) and the vehicle frame (145), mainly by lift limiting stopper (not marking), bump rubber (146), lift unit (147) constitutes, and lift is in the scope of spring deflection; They are two years old, be arranged between steel spring (148) suspension and the frame beam (149), main by the slideway piece (150) that is fixed in crossbeam, be fixed in the slide block (151) of BF axle, lift unit (152) and locking mechanism (153) constitute, locking mechanism is thrown off under liquid/gas potential source pressure automatically when blowing out, and lift mechanism drives slide block and moves in slideway, reaches the regulation lift.
Gas, hydro-pneumatic spring suspension mainly are made of shock absorber (106), main gas tank (107), accessory air-space (108); Bodywork height, suspension rate, damping, enter major-minor air chamber gas and the realization of shock absorber internal damping control mechanism by electrical control actuator control, signal of tyre burst is directly imported electric-control system when blowing out, and control executing mechanism rises the wheel suspension of blowing out, and recovers the vehicle body balance.
Lift mechanism propulsion source is: type A high pressure gas generator, mainly constitute by explosion-proof outer box (109), reactor (110), enclosing cover (111), institute's spacing therebetween is air storage chamber (112), shell is a double-decker, in fill refrigerant fluid (113), control cock (114) is established in outlet, fill initiating agent (118) in the reactor around center device pilot burner (115), the pilot burner and constitute combustion chamber, insert gas generant (119) around the porous burner chamber, produce gas through filtering layer (120), the hole on the reactor enters air storage chamber; Two electric connections (116) link the outer binding post (117) that covers by the electric contact on the table in the enclosing cover; Type B, piston and bellows-type energy storage, mainly constitute by plenum chamber (122), (130), free piston (131) or bellows (124), liquid storage cylinder (127), control cock (126), manual pumps (128) or automobile power, motor-drive pump, by the accumulation of energy of air chamber high pressure gas and promote free piston or bellows, output liquid or air pressure energy.
Mainly pipeline transfer valve apportioning valve constitutes the brake compensation device in the brake system by being linked to, during cruising, transfer valve inner spool (134) makes the valve normal open in the present position under spring (135) power effect, braking gas, hydraulic pressure directly enters the wheel braking chamber through transfer valve, when blowing out, transfer valve is under liquid gas pressure (P) or electromagnetic valve effect, spool moves, valve switches to the pipeline (136) that is communicated with apportioning valve, enter compressed air brake cylinder through apportioning valve again, apportioning valve is mainly by valve body (137), spool (138), spring (139) constitutes, spool does not wait at pressure input cavity (140) and output cavity (141) bearing area, along with input pressure changes, move at differential pressure effect bottom spool, open, closing communication passage in two chambers (142) makes delivery pressure and input pressure proportional.The apportioning valve Pressure reducing ratio:
r
1The wheel standard radius of not blowing out, r
2The wheel rim of the blowing out radius that lands, f coefficient of correction, f be by the wheel of the blowing out friction coefficient change value that lands, the wheel positional parameter changing value of blowing out, and lift mechanism rises vehicle frame, and force balance is compensated the back factors such as deceleration and stopping performance influence is determined.
Can cruising after landing for the wheel that guarantees to blow out, be necessary wheel rim shape, structure and the wheel rim edge area that lands are done the necessary design of revising.
The suspension lift should be in suspension forced stroke and vibration damping bullet supporting member deformation range, present most of automotive suspension can satisfy this technical requirements, the basic bodywork height that causes of blowing out that can compensate descends and force unbalance, if lift can not satisfy this technical requirements, the suspension forced stroke parameter that makes progress be can revise, lift mechanism and the composite structure of suspension polyphone arrangement, independent lift mechanism or change wheel flatness ratio adopted.
Lift mechanism lift adopts the lift height controller, and this controller sensing member sensing vehicle body or vehicle frame elemental height position reach when reducing the lift of required compensation because of the wheel external diameter of blowing out, and control lift mechanism and stop.
When the tyre explosion safety system is used for vehicle front and car, because of front-wheel and car changes in weight little, suspension elemental height and work initial position change little, can adopt lift height delimiter or limiting stopper to replace the lift height controller, can reach the compensation that the bodywork height of blowing out descends fully.
Compared with prior art, the present invention has following advantage: system adopts the sensor of blowing out, lift suspension fork mechanism, brake-force balance device and electronic control package, behind the automatic guidance automobile flat tire, instant recovery proper motion state and force balance, fundamentally solved the cross-up of blowing out and causing in travelling at present, and the bumper car that under heavily loaded high-speed case, may cause, even great serious accident such as overturning, eliminate the great psychological pressure and the prestige that chaufeur is caused of blowing out that may occur of running at high speed and help.By means of lift cylinder, energy storage equipment and automatically controlled damping control apparatus, suspension parameters such as adjustable bodywork height, rigidity, damping have improved rideability, driving comfort.Blow out and the unification of tire pressure signal transducer, volume is little in light weight, the noncontact sensing detection, and show tire pressure or undervoltage warning at any time.Suspension vibration damping, lift unit unification, simple in structure, in addition the space need be set in the chassis, be applicable to large, medium and small and the various vehicles of car, do not changing under existing each vehicle driving system structure situation, all can supporting with it use.Utilize tire-burst safety device, reduced production, technology, the service rating standard of tire, and environmental conditions, prolong tire service life, have good economic results in society.
Below, detail illustrates concrete structure of the present invention and principle of work in conjunction with the accompanying drawings and embodiments.
Fig. 1 is a native system job procedure diagram of circuit.
Fig. 2 is pressure sensor setting, structure semisectional view.
Fig. 3 is a piezoelectric transducer profile scheme drawing.
Fig. 4 is a piezoresistance sensor structure semisectional view.
Fig. 5 is lift mechanism and suspension composite structure A type semisectional view.
Fig. 6 is lift mechanism and suspension composite structure Type B semisectional view.
Fig. 7 is lift mechanism and suspension composite structure C type semisectional view.
Fig. 8 is lift mechanism and suspension composite structure D type semisectional view.
Fig. 9 is lift mechanism and suspension composite structure E type semisectional view.
Figure 10 is gas, gas/liquid suspended portion separation structure cutaway view
Figure 11 is the high pressure gas generator semisectional view.
Figure 12 is a bellows-type accumulator structure semisectional view.
Figure 13 is a piston accumulator structure semisectional view.
Figure 14 is the switch valve structure semisectional view.
Figure 15 is an apportioning valve structure semisectional view.
Figure 16 is lift mechanism and steel spring suspension combination scheme drawing A.
Figure 17 is lift mechanism and steel spring suspension combination scheme drawing B.
Embodiment:
1, the native system job procedure, referring to figure (1), rotor wheel upward pressure sensor (1) signal, through the set sensing member of fixed positions such as wheel shaft (2), send electronic processing control system (3), output signal of tyre burst one tunnel control electromagnetic valve, open lift gas, hydraulic power source, energy storage (4) or high pressure gas generator, start lift suspension fork mechanism (5), and by lift controller control lift, energy storage (4) is imported a gas/liquid simultaneously and is pressed transfer valve to brake compensation device (6) in the brake piping, cut off former braking gas/liquid pipeline, and make the gas/liquid pipeline take turns compressed air brake cylinder (7) to blowing out via the apportioning valve conducting, make each wheel all obtain the braking force of a balance, electronic processing control system (3) output tire pressure signal or undervoltage warning to telltale (8) shows that the while can be by the lift cylinder, or oil/gas spring suspension, automatically controlled damping arrangement and electronic processing control system realize that suspension parameter is adjustable.Braking gas/liquid potential source (9) adopts propulsion source (10) or manual pumps (11).
2, pressure sensor structure A is referring to figure (2), A, piston (12) and or bellows (13), elastic component in the pressure sensor (14) changes tire pressure into the displacement of magnetic survey head (15), when gauge head (15) passes through magnetosensitive displacement sensing spare (16) with wheel, the displacement signal of reflection tire pressure is changed into pulse electrical signal input electronic processing control system.
B, electric sensor,
One: the piezoelectric type sensing part is referring to figure (3).
Mainly be made of piezoceramic (17), upper/lower electrode (18), lead-in wire (19), piezoelectrics are applied voltage, make its vibration, tire pressure (20) acts on piezoelectrics, and the piezoelectrics resonant frequency is changed, and the variation of frequency value has reflected the variation of tire pressure.
Its two: the pressure resistance type sensing part referring to figure (4).
Mainly be made up of high pressure chest (21), low-pressure cavity (22), silicon ring (23), silicon diaphragm (24), lead-in wire (25), under the differential pressure effect, stress makes 4 electric bridge lack of equilibrium, output correspondent voltage that resistance is formed on the silicon diaphragm
3, suspension, be upgraded to mechanism's unitized construction, the suspension that this structure can have the lift function with compound formations of independent suspension such as Mai Feixun, candle formula, traveller swing arms.
Type A, referring to figure (5), suspension shock-absorber inner core (26), urceolus (27) constitute double-barrel structure, be liquid storage cylinder (28) between the inner/outer tube, its underpart and bottom valve (29) link, and are cushion cylinder (30) in the inner core, one hollow dashpot piston bar (31) is arranged, and the bottom links dashpot piston (32); Cutoff port on the bottom valve (33) valve (34) is realized stretching, compression stroke different damping double acting vibration damping when cutoff port (35) valve (36) on plug is lived is worked, and urceolus is a traveller; A compound lift piston barrel (37) outside the top, link with piston rod top at the bottom of it, and constitute a lift cylinder (38) with this, in the cylinder or do not have a bellows again, or flexible gas, liquid capsule (not marking), when blowing out, control cock on the piston rod (39) is opened automatically, and the lift gas/liquid is pressed by the interior air inlet pipe (40) of bar and entered the lift cylinder, or cylinder inner corrugated pipe, flexible gas-liquid capsule (not marking among the figure), in suspension forced stroke scope, by lift controller or hill holder control lift.Traveller is outward a damper spring (41), and the lower end is by lower spring dish (42) supporting, and the upper end is fixing by spring holder (43).Charge into a certain amount of gas in the lift cylinder, can change suspension rate, and can be by the automatically controlled damper regulator (44) on piston rod top, the control stalk (45) in the hollow piston bar, rotovalve (46) changes cutoff port aperture on the piston, realizes that the suspension resistance is adjustable.Damping block (47) is equipped with on piston rod top, thrust bearing (48), bearing (49), captive nut (50), bearing safety pad (51), traveller nut (52) etc., pack between piston rod and vibration damping inner core orienting sleeve (53), sealing member (54), insert orienting sleeve (55) and sealing member (56) between traveller and the lift piston barrel, anti-layer cover is that (57), lift cylinder sealing shroud are (58).
Type B: referring to figure (6), suspension is by traveller (59), hollow draw-bar (61) fixing on traveller inner carrier (60) piston constitutes lift cylinder (62) jointly, counteraction vibration damping chamber (63), annular compartment (64), charge valve (65) can be used in vibration damping chamber top, fill steam pipe (66) and fill compression gas, during pistons work, damping liquid is by connecting piece (67), cutoff port (68), valve (69) flows between vibration damping chamber and annular chamber, realize stretching and compression stroke different damping double acting vibration damping, when blowing out, charge valve (70) self-opening, the lift cylinder is inflated, make it to reach the regulation lift by the lift controller, during cruising, suspension rate is by damper spring (71) and the control of adjustable lift cylinder charge air.Orienting sleeve (72), seal ring (73) play the pilot seal effect.
Type C is referring to figure (7).
Suspension shock-absorber adopts damping hole and valve opening on lift hydraulic power source control dashpot piston and the piston rod, it is closed, make shock absorber become a lift mechanism, structural principle is: by pipe (75) in one in the hollow piston bar (74), interior pipe upper end control cock (76) is communicated with the lift hydraulic power source, interior pipe lower end is communicated with the hydraulic cavities of piston (79) internal spool valve (77), one spool (78) is arranged in the slide valve seat, spool the end bearing area in this chamber greater than with piston (79) the spool other end area of chamber connected chamber down.A control cock (81) is established in cushion cylinder (80) bottom, be communicated with the lift hydraulic power source by this valve, when blowing out, open two control cock (76), (81), valve core of the spool valve is under the differential pressure effect, close all cutoff ports (82) and valve (83) passage on the dashpot piston, piston rises, make suspension reach the lift of lift control regulation, the interior damping liquid of piston upper chamber this moment enters lift liquid storage cylinder (85) through by pass valve (84), during vibration damping, by the cutoff port on dashpot piston (79) and the bottom valve (86), valve and vibration damping liquid storage cylinder (87) are realized compression and stretching travel different damping double acting vibration damping, have a valve (88) can close or be communicated with two cylinder between lift and the vibration damping liquid storage cylinder.
Type D, referring to figure (8).
One lift piston (90), piston rod (91) are set in the vibration damping hollow piston pull bar (89) in the suspension shock-absorber, lift piston rod (91) is locked by locking mechanism (92) with dashpot piston pull bar (89), when starting lift mechanism, lift liquid/gas potential source liquid/gas is pressed and is opened locking mechanism, enter lift cylinder (94) by pipe (93) in control cock, the lift piston rod simultaneously, limit its lift by the lift stop block, cushion cylinder is that (95), liquid storage cylinder are (96).
Type E, referring to figure (9).
One free piston (97) is set at the bottom of suspension shock-absorber, the cushion cylinder, the cushion cylinder bottom is communicated with the liquid/gas potential source by control cock (98), when blowing out, control cock is opened, free piston rises, and lifting dashpot piston (100) by damping block (99), damping liquid enters liquid storage cylinder (105) by the by pass valve (not marking among the figure) on the interior pipe (102) in the piston rod (101), by pass valve (103) or the damper cylinder (104) in the cylinder;
Type G, referring to figure (16), (17).
Independent lift unit is a piston type, or it is compound with shock absorber, with the supporting use of steel spring dependent suspension, one, be arranged between steel spring (143) and wheel transverse axis fixed position (144) and the vehicle frame (145), mainly by lift limiting stopper (not marking) bump rubber (146), lift unit (147) or lift mechanism and the compound formation of shock absorber, lift is in the scope of spring deflection; They are two years old, be arranged between steel spring (148) suspension and the frame beam (149), main by the slideway piece (150) that is fixed in crossbeam, be fixed in the slide block (151) of BF axle, lift unit (152) and locking mechanism (153) constitute, locking mechanism is thrown off under liquid/gas potential source pressure automatically when blowing out, and lift mechanism drives slide block and moves in slideway, reaches the regulation lift.
4, gas, oil/gas spring suspension.
Type A: referring to figure (10)
Suspension mainly is made of shock absorber (106) main gas tank (107) accessory air-space (108), and bodywork height, suspension rate, damping are realized by gas and shock absorber internal damping control mechanism that electrical control actuator control enters major and minor air chamber.
Type B: referring to figure (6)
Remove the spring (71) in the suspension, suspension is representative type reaction cylinder oil/gas spring suspension, and suspension has lift cylinder (62), the anti-vibration damping chamber (63) of doing, and bodywork height, suspension rate enter in the lift cylinder gas by automatically controlled charge valve (70) control and determine.Other structure is identical with 3.B with principle of work.
5, lift mechanism propulsion source
Type A: high pressure gas generator, referring to figure (11).
Mainly be made of explosion-proof outer box (109), reactor (110), enclosing cover (111), space therebetween is that air storage chamber (112), outer box are double-decker, in fill refrigerant fluid (113) outlet and establish control cock (114).The reactor heart is equipped with pilot burner (115), two electric connections (116) are by table electric contact in the enclosing cover, link with lid outer terminal (117), fill initiating agent (118) around the pilot burner and constitute combustion chamber, the gas of inserting gas generant (119) generation around the porous burner chamber enters air storage chamber through filtering layer (120) by the hole on the reaction box.
Type B: referring to figure (12), (13).
Bellows-type energy storage: mainly by shell (121), plenum chamber (122) safety valve (123), bellows (124), grease chamber (125) in the bellows, control cock (126), oil storage cylinder (127) constitute, propulsion source is manual pumps (128), or connect automobile power or motor-drive pump (not marking among the figure), by oil pump the oil pressure in the liquid storage cylinder is gone in the bellows, press thus, contract gas in the air chamber is realized the high pressure gas accumulation of energy.
Piston accumulator: mainly constitute by shell (129), plenum chamber (130), free piston (131), control cock (132), safety valve, by manual pumps or automobile power pump, motor-drive pump the liquid in the oil storage cylinder is injected in the cylinder, free piston moves, store compressed gas is realized accumulation of energy in the air chamber, or is not with the direct injecting gas of oil storage cylinder.
6, the brake-force balance device is referring to figure (14), (15).
The brake-force balance device inserts in the brake line, and during cruising, spool (134) is under spring (135) power effect in the transfer valve valve body (133), and the present position makes the valve normal open, and braking gas/liquid straightening taps into into brake repair room.When blowing out, under the effect of gas/liquid pressure P, or (do not mark among the figure) under the electromagnetic valve effect, spool moves, valve switches to apportioning valve connecting pipeline (136) braking gas/liquid pressure and enters the wheel brake repair room of blowing out through apportioning valve, making the wheel of blowing out obtain one and the non-proportional braking force of wheel of blowing out.Apportioning valve mainly is made of valve body (137), spool (138) spring (139), pressure input chamber (140), pressure output cavity (141), spool area in above-mentioned two chambers (140), (141) does not wait, along with input pressure changes, move at differential pressure effect bottom spool, communication passage (142) makes delivery pressure P in open and close two chambers
2With input pressure P
1Become constant ratio.
Claims (6)
1, a kind of automotive tyre explosion safety, tire pressure shows, adjustable suspension system is mainly by sensor, adjustable lift suspension, the brake-force balance device, the electronic processing control system, gas, liquid or electromagnetic actuator constitute, it is characterized in that: sensor adopts force-sensing sensor, wherein pressure sensing part (1) is arranged at rotating-wheel, A, with the mechanical elastic sensing member tire pressure is changed into the displacement geometric sense, B, use electric electric capacity, pressure drag, piezoelectricity, strain sensing spare changes tire pressure into electromagnetism, infrared, or ultrasonic active signal, another part is arranged at axletree or other non-rotating position of vehicle body, sensing member (2): A, the displacement geometric sense is converted to electric signal, B, receive it by receptor, infrared or ultrasonic active signal; Signal is handled through electronic system (3), show tire pressure or undervoltage warning by telltale (8), when blowing out, output tire pressure signal is an extreme value, pneumatic or the electromagnetic actuator of one tunnel signal of tyre burst control wherein starts the lift suspension composite structure (5) that is arranged between wheel, car sedan-chair and the vehicle frame or independent lift mechanism, to gas, hydropneumatic active suspension automobile, control bodywork height control mechanism rises the vehicle frame that descends because of blowing out and timely automobile normal running and the force balance of recovering; The brake-force balance device (6) of another road control setting in brake line of output signal of tyre burst, this device mainly is made of transfer valve, apportioning valve, and glancing impact provides a braking force that balances each other with the non-wheel of blowing out to the wheel of blowing out; Utilize gas, liquid lift cylinder or gas, gas-liquid suspension, active suspension in the lift mechanism, the shock absorber resistance adjustment mechanism, by electrical control actuator, or manual unit, can regulate suspension height, rigidity, damping parameter; The composite structure that lift mechanism adopts oil, gas piston or forms with other mechanical lift mechanism, independent or with suspension compound (26-108); Lift mechanism propulsion source is: one, high pressure gas generator (109-120), adopt gas generant reaction, detonation in the container, or liquid gasifies rapidly and produces the technical scheme of the external work done of high pressure gas, light initiating agent (118) on every side by pilot burner (115), gas generant (119) reaction or liquid, blue gas are gasified rapidly, and the gas of exothermic heat of reaction needs after filtration that (120) and cooling mechanism (113) enter storage space (112); Two, mechanical accumulator or its composite structures (121-132) such as gas-liquid piston, bellows, air bag, barrier film provide energy storage power by automotive engine, motor-drive pump or manual pumps (128).
2, system according to claim 1, it is characterized in that: the A force-sensing sensor, mechanical elasticity pressure-sensing spare adopts bellows (13), piston (12), bellows, film or its assembly set, be fixed in rim for automobile wheel, connect tire pressure or place wheel rim and the inner tube of a tyre between, establish elastic component (14) and Tyre pressure balancer in the sensing member, tire pressure varies is changed into the displacement of gauge head (15), sensor another part is arranged at the nonrotational part of automobile, (16) two or three of its displacement sensing spares are evenly arranged with gauge head (15) approaching along the wheel sagittal plane, and in its operating distance linearity range scope, be noncontact measurement, gauge head is with wheel, during by displacement sensing spare, by displacement sensing spare output pulse signal, amplify through electronic system, handle, by several displacement sensing spare sensing signals are handled, can eliminate the measured error that the wheel runout brings, unit time step-by-step counting reflection vehicle wheel rotational speed, relative distance when pulse amplitude is represented displacement sensing spare by gauge head, when blowing out, the impulse singla amplitude is an extreme value, treated and logical AND gate circuit, control lift mechanism or bodywork height control cock and brake-force balance device, guarantee not take place misoperation, displacement sensing spare adopts Hall, magnetic resistance, literary composition brother magnetosensitive parts such as (wiegord), high frequency, magnetic is approaching to wait on-off element, or magnet coil makes it to become the generator-type sensor:
B, electric sensing part are fixed in wheel rim, adopt piezoelectric type, mainly are made of piezoceramic (17) upper/lower electrode (18), lead-in wire (19), piezoelectrics are applied voltage, make its vibration, tire pressure acts on piezoelectrics, the piezoelectrics resonant frequency is changed, frequency change value reflection tire pressure varies; They are two years old, pressure resistance type is mainly by high pressure chest (21), low-pressure cavity (22), silicon ring (23), silicon diaphragm (24), lead-in wire (25) constitutes, when there is differential pressure in the diaphragm two ends, under stress, the electric bridge lack of equilibrium that 4 resistance that diffusion is made in its semiconductor crystal matrix constitute, the output relevant voltage, sensor circuit adopts corresponding constant current or constant voltage, amplify, oscillating circuit, transmission circuit is mainly by free running multivibrator, high frequency transmission circuit constitutes, with establishing: A, shake the control switch, in the time of need showing tire pressure for chaufeur, control at operator's compartment, B, the tire pressure diaphragm switch, automatically connect the working sensor circuit when blowing out, this mode makes work-hours extremely short, can not change minicell for a long time, acceptor circuit is mainly by filtering, voltage stabilizing, one, two utmost points amplify, frequency-selecting is amplified, power amplifier, receive head, switch signal generator constitutes, and is arranged at operator's compartment or the position approaching with feedway, and output tire pressure signal is an extreme value when blowing out, handle through electronic system, control electromagnetic actuator tripping force rises mechanism and brake-force balance device.
3, system according to claim 1 is characterized in that: lift mechanism can constitute lift suspension composite structure with the various suspensions of Mai Fuxun, candle formula, traveller swing arm, steel spring, or is independent lift mechanism; Adopt the unification of lift and cushion cylinder, compound, twin-tub, single, double piston and the many bell structures of free piston;
Type A, the compound lift piston barrel (37) of suspension shock-absorber urceolus (27), link with dashpot piston bar (31) at the bottom of it, two constitute a lift cylinder (38), in the cylinder or establish a bellows or flexible air-bag again, the control cock (39) that links by air inlet pipe (40) on the lift piston barrel or in the dashpot piston bar is communicated with lift gas or hydraulic power source, the dashpot piston masthead has an automatically controlled damper regulation mechanism (44), by regulating the internally-controlled rod (45) on the hollow piston bar, rotovalve (46) changes piston or piston rod cutoff port aperture, regulate damping, the lift piston barrel is provided with damper spring (41) outward, by regulating lift cylinder or cylinder inner corrugated pipe, air pressure in the flexible air-bag, regulate the suspension height, rigidity, by dashpot piston (32), valve (34) on damper cylinder (26) bottom valve (29), cutoff port (33) are realized stretching and compression stroke different damping double-acting type vibration damping;
Type B, suspension is by traveller (59), traveller inner carrier (60), hollow draw-bar (61) fixing on the piston constitutes lift cylinder (62) jointly, counteraction vibration damping chamber (63), annular compartment (64), available charge valve (70) is inflated to the lift cylinder, suspension is risen, during pistons work, damping liquid is by connecting piece (67), cutoff port (68), valve (69), in vibration damping chamber and annular chamber, flow, realize Compression and Expansion different damping double acting vibration damping, appendix (66) can be used in top, vibration damping chamber, charge valve (65) injects pressure gas, and traveller is provided with damper spring (71) outward;
Type C, suspension shock-absorber uses the lift hydraulic power source, control cock (77) on interior pipe (75) the control dashpot piston (79) in hollow piston bar (74), change on the dashpot piston, in the connection, the aperture of the valve of cavity of resorption (83) and hole (82), close in the connection when blowing out, the passage of cavity of resorption cutoff port (82) flow regulating valve (83), cushion cylinder becomes a lift cylinder, the cushion cylinder bottom is communicated with the lift hydraulic power source by a control cock (81), under the hydraulic coupling that enters, piston rises, the epicoele damping liquid enters lift liquid storage cylinder (85) between the inner/outer tube by by pass valve (84), during vibration damping, by dashpot piston (79) and bottom valve (86) and last set valve thereof, cutoff port, the vibration damping liquid storage cylinder (87) of inner/outer tube bottom is realized the double acting vibration damping, is communicated with two cylinder by a valve (88) between vibration damping and lift liquid storage cylinder;
In type D, the suspension shock-absorber, one lift piston (90) and piston rod (91) are set in the hollow dashpot piston pull bar (89), lift piston rod (91) is locked by lockable mechanism (92) with dashpot piston pull bar (89), when starting lift mechanism, the lift liquid gas pressure is derived from the moving lockable mechanism of opening, and enters lift cylinder (94) by pipe (93) in control cock, the lift piston rod, limits its lift by the lift stop block, shock absorber peripheral hardware damper spring, cushion cylinder are that (95), liquid storage cylinder are (96);
One free piston (97) is set at the bottom of type E, suspension shock-absorber, the cushion cylinder, the cushion cylinder bottom is communicated with the liquid gas pressure source by control cock (98), control cock is opened when blowing out, free piston rises, lift dashpot piston (100) by damping block on the free piston (99), damping liquid enters liquid storage cylinder (105) by the by pass valve on interior pipe (102), by pass valve (103) or the damper cylinder in the piston rod (101) in the cylinder;
Type F, suspension vibration damping lift two cylinder polyphone arrange that vibration damping and lift piston link with piston rod respectively in two cylinder, the lift cylinder is communicated with lift gas, hydraulic power source by control cock, and other structure all can adopt various independent suspension structures;
Type G, lift unit are piston type, independent or compound with shock absorber, with the supporting use of steel spring dependent suspension, one, be arranged between steel spring (143) and wheel transverse axis fixed position (144) and the vehicle frame (145), mainly by lift limiting stopper (not marking), bump rubber (146), lift unit (147) constitutes, and lift is in the scope of spring deflection; They are two years old, be arranged between steel spring (148) suspension and the frame beam (149), main by the slideway piece (150) that is fixed in crossbeam, be fixed in the slide block (151) of BF axle, lift unit (152) and locking mechanism (153) constitute, locking mechanism is thrown off under liquid/gas potential source pressure automatically when blowing out, and lift mechanism drives slide block and moves in slideway, reaches the regulation lift.
4, system according to claim 1 is characterized in that: gas, hydro-pneumatic spring suspension mainly are made of shock absorber (106), main gas tank (107), accessory air-space (108); Bodywork height, suspension rate, damping, enter major-minor air chamber gas and the realization of shock absorber internal damping control mechanism by electrical control actuator control, signal of tyre burst is directly imported electric-control system when blowing out, and control executing mechanism rises the wheel suspension of blowing out, and recovers the vehicle body balance.
5, according to the described system of claim 1, it is characterized in that lift mechanism propulsion source is: type A high pressure gas generator, mainly by explosion-proof outer box (109), reactor (110), enclosing cover (111) constitutes, institute's spacing therebetween is air storage chamber (112), shell is a double-decker, in fill refrigerant fluid (113), control cock (114) is established in outlet, center device pilot burner (115) in the reactor, fill initiating agent (118) around the pilot burner and constitute combustion chamber, insert gas generant (119) around the porous burner chamber, produce gas through filtering layer (120), the hole on the reactor enters air storage chamber; Two electric connections (116) link the outer binding post (117) that covers by the electric contact on the table in the enclosing cover; Type B, piston and bellows-type energy storage, mainly constitute by plenum chamber (122), (130), free piston (131) or bellows (124), liquid storage cylinder (127), control cock (126), manual pumps (128) or automobile power, motor-drive pump, by the accumulation of energy of air chamber high pressure gas and promote free piston or bellows, output liquid or air pressure energy.
6, according to the described system of claim 1, it is characterized in that: mainly pipeline transfer valve apportioning valve constitutes the brake compensation device in the brake system by being linked to, during cruising, transfer valve inner spool (134) makes the valve normal open in the present position under spring (135) power effect, braking gas, hydraulic pressure directly enters the wheel braking chamber through transfer valve, when blowing out, transfer valve is under liquid gas pressure (P) or electromagnetic valve effect, spool moves, valve switches to the pipeline (136) that is communicated with apportioning valve, enter compressed air brake cylinder through apportioning valve again, apportioning valve is mainly by valve body (137), spool (138), spring (139) constitutes, spool does not wait at pressure input cavity (140) and output cavity (141) bearing area, along with input pressure changes, move at differential pressure effect bottom spool, open, closing communication passage in two chambers (142) makes delivery pressure and input pressure proportional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107850A CN1070124C (en) | 1997-12-30 | 1997-12-30 | Automotive tyre explosion safety tyre pressure indicating adjustable suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107850A CN1070124C (en) | 1997-12-30 | 1997-12-30 | Automotive tyre explosion safety tyre pressure indicating adjustable suspension system |
Publications (2)
| Publication Number | Publication Date |
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| CN1221687A true CN1221687A (en) | 1999-07-07 |
| CN1070124C CN1070124C (en) | 2001-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97107850A Expired - Fee Related CN1070124C (en) | 1997-12-30 | 1997-12-30 | Automotive tyre explosion safety tyre pressure indicating adjustable suspension system |
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| CN (1) | CN1070124C (en) |
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| IT1257327B (en) * | 1992-04-02 | 1996-01-15 | Nardino Righi | SIGNALING DEVICE, IN PARTICULAR OF THE PRESSURE STATUS OF A TIRE. |
| CN2165025Y (en) * | 1992-09-03 | 1994-05-18 | 郑荣俊 | Display alarm device for monitoring air pressure of tyre |
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- 1997-12-30 CN CN97107850A patent/CN1070124C/en not_active Expired - Fee Related
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| CN106114117A (en) * | 2016-08-17 | 2016-11-16 | 江西科技学院 | A kind of for reducing vehicle flat tire and the safety device of side crash intrusion injury and control method thereof |
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| CN109915529A (en) * | 2017-12-13 | 2019-06-21 | 株洲飞马橡胶实业有限公司 | A kind of inflation method of rubber air spring |
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| CN109304992A (en) * | 2018-09-27 | 2019-02-05 | 陈光琥 | Tire with interior air pressure detection balance system |
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| CN110001332A (en) * | 2019-03-18 | 2019-07-12 | 江苏大学 | A kind of tyre explosion safety suspension system and control method and vehicle |
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