CN102673340B - Oil gas hanging unwheeling appearance regulating system - Google Patents
Oil gas hanging unwheeling appearance regulating system Download PDFInfo
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- CN102673340B CN102673340B CN201210185113.4A CN201210185113A CN102673340B CN 102673340 B CN102673340 B CN 102673340B CN 201210185113 A CN201210185113 A CN 201210185113A CN 102673340 B CN102673340 B CN 102673340B
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Abstract
The present invention relates to a kind of car appearance regulating system, wherein power source is connected with fuel tank, power source output successively connect oil-feed filter and unloader, and unloader can adopt two-position three way magnetic valve, and being embodied as regulating system by electromagnetic switch provides pressure oil; Overflow valve is in parallel with unloader, regulates the control that can realize system critical pressure by handle; Be connected with the oil inlet end of front suspension control valve and rear suspension control valve respectively by high pressure hard tube or flexible pipe at the oil-out b of unloader end; The oil outlet end of front suspension control valve and rear suspension control valve is series throttle group and suspension hydraulic lock successively, and suspension hydraulic lock is connected with hydro pneumatic suspension by pipeline. In the time of the power-off of suspension hydraulic lock, the fluid in hydro pneumatic suspension and the isolation of car appearance regulating system, guarantee the stable of vehicle attitude and driving performance, and in the time that suspension hydraulic lock is switched on, the fluid in hydro pneumatic suspension will flow back to fuel tank by car appearance regulating system.
Description
Technical field
The present invention relates to a kind of car appearance regulating system that uses hydro-pneumatic spring vehicle, belong to hydraulic pressTool and road vehicle application field.
Background technology
In prior art, the elastic element rigidity characteristic of traditional suspension is nonadjustable, at vehicleCan there is significant change in the situation lower body attitude that load change is larger, cause the handling stability of vehicleEnergy and ride comfort decline to a great extent, and for this situation, overseas enterprise has realized by hydro-pneumatic springThe empty fully loaded adjustable suspension form of two stage stiffness, but vehicle not only has in actual useTwo states, the uncertainty of load capacity makes this regulative mode cannot meet instructions for use,This also becomes the skill that current domestic vehicle production manufacturer faces and cannot effectively solve all the timeArt difficult point, particularly necessity so the continuously adjustable suspension system of exploitation car appearance just seems.
Summary of the invention
According to an aspect of the present invention, provide a kind of oil gas hanging unwheeling appearance regulating system, mainComprise power source, fuel tank, unloader, overflow valve, front suspension control valve, rear suspension control valveWith suspension hydraulic lock, wherein power source is connected with fuel tank, the oil-feed of successively connecting of power source outputFilter and unloader, unloader can adopt two-position three way magnetic valve, is embodied as tune by electromagnetic switchJoint system provides pressure oil; Overflow valve is in parallel with unloader, is regulated and can be realized being by handleThe control of system critical pressure; Pass through high pressure hard tube or flexible pipe difference at the oil-out b of unloader endBe connected front suspension control valve and rear overhang with the oil inlet end of front suspension control valve and rear suspension control valveFrame control valve is 3-position-3-way solenoid valve, and in the time that system is not worked, magnetic valve disconnects shape in metaState; The oil outlet end of front suspension control valve and rear suspension control valve is series throttle group and suspension successivelyHydraulic lock, suspension hydraulic lock is two-position two-way solenoid valve, suspension hydraulic lock is by pipeline and oil gasSuspension connects. In the time of the power-off of suspension hydraulic lock, the fluid in hydro pneumatic suspension and car appearance regulating systemIsolation, guarantees the stable of vehicle attitude and driving performance, in the time that suspension hydraulic lock is switched on, and oil gasFluid in suspension will flow back to fuel tank by car appearance regulating system.
Car appearance regulating system of the present invention is by a draft hitch control combination valve and two connection liquidPress lock combination valve and respective line, sensor composition. Draft hitch control combination valve and twoBe communicated with hydraulic lock combination valve and all adopt plugged electric magnet valve to reduce arrangement space, valve piece adopts lightAluminum alloy materials, has good mechanical performance, good resisting compared to conventional steel material valve pieceCorrosion antioxygenic property, can make whole car appearance regulating system weight loss of weight nearly 60% simultaneously.In system, be provided with flow valve, ensure that for adjustment System flow system moves upward same side sameStep, simultaneously for the responsiveness of control system.
Carry out the control of car appearance by adding angular transducer, enter by adding pressure sensorThe monitoring of road wheel lotus. The control of car appearance is mainly positioned at four suspensions in car body front and back by control system collectionThe measured height of the carbody data of angular displacement sensor ensure that whether car appearance height meets and establishMeter requirement. Angular displacement sensor adopts non-contact type angular displacement sensor, its have precision high,The feature that measurement category is large, and can meet vehicle to electromagnetic compatibility by the raising of degree of protectionThe particular/special requirement of property and environmental suitability etc. Wheel load is monitored by being arranged in hydraulic systemTwo pressure sensors gather the system pressure of front axle and rear diaxon, judge by control systemWhether each wheel load meets instructions for use.
Brief description of the drawings
Fig. 1 is car appearance regulating system theory of constitution figure;
Fig. 2 is the each duty valve piece of car appearance regulating system theory of constitution figure;
Fig. 3 is draft hitch control combination front view;
Fig. 4 is draft hitch control combination top view;
Fig. 5 is draft hitch control combination rearview;
Fig. 6 is for being communicated with hydraulic lock combination installation diagram;
Fig. 7 is car appearance regulating system line graph;
Fig. 8 car appearance regulating system propradation schematic diagram;
Fig. 9 car appearance regulating system decline state schematic diagram;
Figure 10 car appearance regulating system forward-lean state schematic diagram;
Figure 11 car appearance regulating system retroverted state schematic diagram;
Figure 12 choke valve group schematic diagram.
In figure: 1-system dynamic source, the control combination of 2-draft hitch, 3-manual pump, 4-A right hydro pneumatic suspension, right two hydro pneumatic suspensions of 5-, 6-is communicated with hydraulic lock combination, right three oil of 7-Gas suspension, left three hydro pneumatic suspensions of 8-, 9-the second from left hydro pneumatic suspension, 10-the first from left hydro pneumatic suspension,11-main valve return check valve, 12-overflow valve, 13-unloader, the control of 14-front suspensionValve, the right front suspension hydraulic lock of 15-, the right front rising choke valve of 16-, the right front check valve of 17-,18-front axle liquid-pressure pick-up, the right front decline choke valve of 19-, 20-rear suspension control valve,The right back rising choke valve of 21-, the right back decline choke valve of 22-, the right back check valve of 23-, 24-rear axle liquid-pressure pick-up, the left back check valve of 25-, the left back decline choke valve of 26-, 27-left back rising choke valve, 28-rear suspension check valve, 29-front suspension check valve, a 30-left sideFront rising choke valve, the left front suspension hydraulic lock of 31-, the left front decline choke valve of 32-, a 33-left sideFront check valve, 34-oil-feed filter, 35-oil return filter, 36-power source (pump-motor system),37-fuel tank, 38-rear suspension hydraulic lock, obstacle detouring valve after 39-, all the other system reserved opening of 40-,41-high-pressure hose, 42-next door joint
Detailed description of the invention
Below in conjunction with accompanying drawing, car appearance regulating system is described in detail:
Figure 1 shows that car appearance regulating system schematic diagram.
Described car appearance regulating system is by system dynamic source 1, hydraulic means, and a right hydro pneumatic suspension 4,Right two hydro pneumatic suspensions 5, right three hydro pneumatic suspensions 7, left three hydro pneumatic suspensions 8, the second from left hydro pneumatic suspension 9,The first from left hydro pneumatic suspension 10, electric control gear and cable and sensor composition, each several part passes through high pressureHard tube (or flexible pipe) is connected. Preferably, the hydraulic means in the present invention is by draft hitchControl combination 2 and connection hydraulic lock combination 6 compositions, but those skilled in the art can rootBe combined multiple integrated control valves according to actual needs, realize the adjusting to car appearance. As Fig. 1-2Shown in system hydro pneumatic suspension is divided into the first axle is one group, rear diaxon is one group totally two groups, canBy the subsidiary electric control gear of system, each magnetic valve is carried out to logic control, realize rise, underFall, lean forward, swing back, set arbitrarily the concrete actions such as ride-height, final realization changes car appearanceThe object of state. Concrete connected mode is: the oil-in in system dynamic source 1 and draft hitch controlThe oil-in J1 of system combination 2 is connected; The manual oil-in J2 of draft hitch control combination 2 withThe flowline of manual pump 3 is connected; The right front suspension oil-feed port C1 of draft hitch control combination 2Be connected with a right hydro pneumatic suspension 4, left front suspension oil-feed port C2 is connected with the first from left hydro pneumatic suspension 10,Right rear suspension oil-feed port C3 combines 6 oil-in J with the hydraulic lock that is communicated with of right back hydro pneumatic suspensionBe connected, the hydraulic lock that is communicated with of left rear suspension oil-feed port C4 and left back hydro pneumatic suspension combines 6 enterHydraulic fluid port J is connected; Front oil-out C7 and the right side of the connection hydraulic lock combination 6 of right back hydro pneumatic suspensionTwo hydro pneumatic suspensions 5 are connected; The rear oil-out of the connection hydraulic lock combination 6 of right back hydro pneumatic suspensionC8 is connected with right three hydro pneumatic suspensions 7; Before the connection hydraulic lock combination 6 of left back hydro pneumatic suspensionOil-out C7 mouth is connected with the second from left hydro pneumatic suspension 9; The connection hydraulic lock group of left back hydro pneumatic suspensionClosing 6 rear oil-out C2 is connected with left three hydro pneumatic suspensions 8.
Described system dynamic source 1 is by fuel tank 37, oil-feed filter 34, oil return filter 35 and power source (pumpMotor system) 36 compositions. An oil-in and an oil return are left respectively in system dynamic source 1Mouthful, and by hard tube or high-pressure hose respectively with the oil-in J1 of draft hitch control combination 2C5 is connected with oil return opening.
System is carried out car appearance vertical ground direction displacement control by adding angular transducer, logicalCross and add pressure sensor and carry out axle load monitoring. The control of car appearance mainly gathers by control systemThe measured height of the carbody data of angular displacement sensor that are positioned at four suspensions in car body front and back are protectedWhether card car appearance height meets design requirement. Angular displacement sensor can adopt non-contact type angular displacementSensor, it has the advantages that precision is high, measurement category is large, and meets Special use requirement pairThe requirement of Electro Magnetic Compatibility and environmental suitability.
Figure 2 shows that car appearance regulating system each several part theory of constitution, due to multiple-axle vehicle action systemSystem is in static indeterminacy state, for avoiding occurring that in car appearance adjustment process wheel load distributes uneven feelingsCondition has installed respectively front axle liquid-pressure pick-up 18 Hes additional in the hydraulic system of axleRear axle liquid-pressure pick-up 24, for carrying out axle load monitoring, and charges and discharge by control systemOil is realized the adjustment of wheel load inequality. In addition, power source 36 is connected with fuel tank 37, works as power sourceWhen 36 work, will extract the fluid in fuel tank 37 and offer car appearance regulating system, power source 36Output successively connect oil-feed filter 34 and unloader 13, oil-feed filter 34 is for filtering fluidThe impurity existing, prevents contaminated system, and unloader 13 can adopt two-position three way magnetic valve, logicalCrossing electromagnetic switch is embodied as regulating system pressure oil is provided; Overflow valve 12 is in parallel with unloader 13,Regulate the control that can realize system critical pressure by handle; At the oil-out of unloader 13B end by high pressure hard tube or flexible pipe respectively with front suspension control valve 14 and rear suspension control valve 20Oil inlet end connect, front suspension control valve 14 and rear suspension control valve 20 can adopt 3-position-3-wayMagnetic valve, in the time that system is not worked, magnetic valve is in meta off-state; Front suspension control valve14 and successively series throttle group and suspension hydraulic lock of the oil outlet end of rear suspension control valve 20, outstandingFrame hydraulic lock can adopt two-position two-way solenoid valve, and arranges near hydro pneumatic suspension as far as possible, to reducePressure duct length between suspension hydraulic lock and hydro pneumatic suspension, the reliability of raising system, exampleAs right front suspension hydraulic lock 15 is connected with a right hydro pneumatic suspension 4, left front suspension hydraulic lock 31 withThe first from left hydro pneumatic suspension 10 connects, two rear suspension hydraulic lock 38 respectively with the second from left hydro pneumatic suspension 9Be connected with left three hydro pneumatic suspensions 8, right two hydro pneumatic suspensions 5 and right three hydro pneumatic suspensions 7, work as hydraulic pressureLock is when power-off, the fluid in hydro pneumatic suspension and the isolation of car appearance regulating system, guarantee vehicle attitude withStablizing of driving performance, in the time that hydraulic lock is switched on, the fluid in hydro pneumatic suspension will be adjusted by car appearanceJoint system flow oil return case. Right front choke valve group is saved by right front check valve 17 and right front rising in additionAfter 16 series connection of stream valve, compose in parallel with right front decline choke valve 19, right back choke valve group is by the right side againAfter 21 series connection of rear check valve 23 and right back rising choke valve again with right back decline choke valve 22 alsoJoint group becomes, and left front choke valve group is connected by front suspension check valve 29 and left front rising choke valve 30After compose in parallel with left front decline choke valve 32 again, left back choke valve group is by left back check valve 25After connecting with left back rising choke valve 27, compose in parallel with left back decline choke valve 26 again. In additionThe one-sided hydro pneumatic suspension of rear diaxon connects by high pressure hard tube or flexible pipe, and after being in series with on pipelineObstacle detouring valve 39, rear obstacle detouring valve 39 can adopt two-position two-way solenoid valve, when after obstacle detouring valve 39In off-position, the one-sided hydro pneumatic suspension of rear diaxon is communicated with formation equalizing type of suspension, when vehicle needsDuring by the obstacle such as trench or vertical wall, rear obstacle detouring valve 39 is in "on" position, by rear diaxonOne-sided hydro pneumatic suspension oil circuit disconnects, with the handling capacity of lifting vehicle.
System control mode is divided into manual control and automatically controls two kinds of patterns. Automatic control stateUnder, driver is as long as operate corresponding car appearance Action Button, and system will, according to program setting, be led toCross collection car appearance position signalling, reach the predefined state of program. When in manual control shapeUnder state, driver determines that by the time length of controlling car appearance Action Button hydro pneumatic suspension charges and dischargeThe time length of oil, thus reach the effect of controlling car appearance height.
As shown in Fig. 3-6, draft hitch control combination 2 is by main valve return check valve 11, excessiveStream valve 12, unloader 13, front suspension control valve 14, right front suspension hydraulic lock 15, right front onRise choke valve 16, right front check valve 17, front axle liquid-pressure pick-up 18, right front decline jointStream valve 19, rear suspension control valve 20, rear suspension check valve 28, front suspension check valve 29, a left sideFront rising choke valve 30, left front suspension hydraulic lock 31, left front decline choke valve 32, left front listForm to valve 33. Be communicated with hydraulic lock combination 6 by rear suspension hydraulic lock 38 and rear obstacle detouring valve 39Composition.
Draft hitch control combination 2 and two connection hydraulic lock combination 6 all adopt plug-in electromagnetismValve is to reduce arrangement space, and valve block of material adopts duralumin, hard alumin ium alloy material, compared to conventional steel materialValve piece has good mechanical performance, good anticorrosive antioxygenic property, can make simultaneouslyWhole car appearance regulating system weight loss of weight nearly 60%.
Main valve return check valve 11 in draft hitch control combination 2, overflow valve 12, off-loadValve 13 forms system unloaded loop, after the high pressure and working cycles that can surprisingly produce systemThe remaining high pressure of internal system carries out off-load. Main valve return check valve 11 prevents that system oil return from producingPour in down a chimney phenomenon adverse current and return system, overflow valve 12 is in parallel with unloader 13, for regulating and maintainingThe required pressure of the normal work of system, unloader 13 adopts two-position three way magnetic valve, uses back pressureSpring resets, and carrys out control system fluid trend by the power on/off of electromagnet, reaches off-loadOr build the object of pressure. As shown in Figure 2, when electromagnet power-off, unloader 13 is answered by springPosition p mouth is connected with a mouth, and the hydraulic oil that system dynamic source 1 produces is straight by unloader 13Take back in fuel tank 37, reach off-load object; Electromagnet energising, the p mouth of unloader 13Be connected with b mouth, the hydraulic oil that system dynamic source 1 produces enters system by unloader 13The system of reaching is built the object of pressure.
Draft hitch control combination 2 after adopting check valve to connect with rising choke valve again with declineThe choke valve group form that choke valve is in parallel is come adjustable suspension oil charging-discharging speed and flow, ensures carSteady lifting in appearance adjustment process. By method of attachment as shown in Figure 2, right front check valve17 and right front rising choke valve 16 series connection after in parallel with right front decline choke valve 19, more commonBe connected in series to the oil circuit that charges and discharge of a right hydro pneumatic suspension 4; Right back check valve 23 and right back rising throttlingIn parallel with right back decline choke valve 22 after valve 21 series connection, be more jointly connected in series to by right two oil gas hangingsThe right back hydro pneumatic suspension that frame 5 and right three hydro pneumatic suspensions 7 form charge and discharge oil circuit; Front suspension is unidirectionalIn parallel with left front decline choke valve 32 after valve 29 and 30 series connection of left front rising choke valve, more altogetherWith the oil circuit that charges and discharge that is connected in series to the first from left hydro pneumatic suspension 10; Left back check valve 25 and left back rising jointIn parallel with left back decline choke valve 26 after 27 series connection of stream valve, be more jointly connected in series to by the second from left oil gasThe left back hydro pneumatic suspension that suspension 9 and left three hydro pneumatic suspensions 8 form charge and discharge oil circuit. This connectionWhen mode makes hydro pneumatic suspension oil-filled, car appearance rises, two oil circuits in parallel of composite throttling device are sameTime work, area of passage is larger, when while draining the oil, car appearance declines with the flow channels of check valveStopped oil, area of passage diminishes, thus realized when vehicle attitude regulates, rise rapidly and underMild feature is fallen.
Right front suspension hydraulic lock 15, left front suspension hydraulic lock 31 and rear suspension hydraulic lock 38 are equalAdopt the version of 2/2-way magnetic valve, wherein right front suspension hydraulic lock 15 and left front outstandingFrame hydraulic lock 31 is integrated in draft hitch control combination 2, divides by high-pressure hose or hard tubeBe not connected with a right hydro pneumatic suspension, the first from left hydro pneumatic suspension, two rear suspension hydraulic lock 38 are arrangedIn being communicated with hydraulic lock combination 6, be connected with rear diaxon suspension cylinder by the inner oil duct of valve piece. WhenWhen normal vehicle operation, hydraulic lock is in off-position, for sealing the hydraulic oil of suspension cylinder,Guarantee the normal work of suspension system; In the time that needs reduce car appearance, hydraulic lock energising, suspension cylinderIn hydraulic oil enter system and flow back to fuel tank by hydraulic lock.
As shown in Figure 2 and Figure 6, rear obstacle detouring valve 39 adopts the structure of 2/2-way magnetic valve,Be integrated in valve piece and be communicated with in hydraulic lock combination 6, right two hydro pneumatic suspensions 5 and right three hydro pneumatic suspensionsBetween 7, be communicated with by right back pipeline 51, the second from left hydro pneumatic suspension 9 and left three hydro pneumatic suspensions 8 itBetween be communicated with by left back pipeline 50, obstacle detouring valve 39 is connected on respectively left back pipeline 50 after twoAnd on right back pipeline 51, form balance suspension structure, what need proposition is to work as diaxon wheelbaseHour, realize equalizing type of suspension function to lifting vehicle travelling by the pipeline connection of hydro pneumatic suspensionCan there is important function. In present embodiment, be to describe as an example of six-wheel vehicle example, abilityField technique personnel should be clear, and connection hydraulic lock of the present invention combination 6 is applicable to multiple-axle vehicleBalance suspension structure, is communicated with hydraulic lock combination 6 as long as arrange between the hydro pneumatic suspension of vehicle homonymy,Can realize equalizing type of suspension and hydraulic pressure blocking function. In addition, in this embodiment, suspension liquidPress lock to only have a kind of structure, in order to be convenient to distinguish on describing, will be positioned at the hydro pneumatic suspension of the first axleThe suspension hydraulic lock definition at place is for front suspension hydraulic lock, by between the hydro pneumatic suspension of rear diaxonSuspension hydraulic lock definition be rear suspension hydraulic lock. " afterwards " in rear obstacle detouring valve represents this obstacle detouringValve is arranged between the hydro pneumatic suspension of rear diaxon.
The annexation of arranging onboard for system that Fig. 7 represents. If zero of hydraulic systemPart is arranged in car, can pass through next door joint 42 and high-pressure hose 41 by system and outsideHydro pneumatic suspension be connected, thereby form whole car appearance regulating system.
System Working Principle is as follows:
Fig. 2 is the state of car appearance regulating system while not working, and each magnetic valve is all in power-offPosition. In the time of normal vehicle operation, rear obstacle detouring valve 39 is in off-position, from diaxon thenForm balance suspension structure, can the suffered impact from ground of effective attenuation single-wheel swashEncourage; In the time that vehicle carries out obstacle detouring, rear obstacle detouring valve 39 is switched on, equalizing type of suspension pipeline is disconnected,Guarantee that rear diaxon hydro pneumatic suspension works independently, to improve handling capacity.
Fig. 8 is the schematic diagram of car appearance regulating system while doing vertical motion, now power source36 and successively energising of unloader 13, front suspension control valve 14 and rear suspension control valve 20 are alsoSwitch on simultaneously and adjust to right position, pressure oil will enter each oil by power source 36 ordersGas suspension, in the time that system pressure is greater than vehicle spring loading capacity, car body will be realized vertical motion.
Fig. 9 is the schematic diagram of car appearance regulating system while doing down maneuver, now front suspension controlValve 14 processed and rear suspension control valve 20 are switched on and are adjusted to left, right front suspension hydraulic lock 15,Left front suspension hydraulic lock 31 and two also energisings simultaneously of rear suspension hydraulic lock 38, hydro pneumatic suspensionIn pressure oil order is returned to fuel tank 37 by regulating system, thereby realize under car bodyAction is fallen.
Figure 10 is the schematic diagram of car appearance regulating system while doing forward swing, now front suspensionControl valve 14 is switched on and is adjusted to left position, right front suspension hydraulic lock 15, left front suspension hydraulic pressureLock 31 is energising simultaneously, and rear suspension control valve 20 is switched on and adjusted to right position in addition, before makingAxle hydro pneumatic suspension is drained the oil, and rear diaxon hydro pneumatic suspension is oil-filled, thus realize car body before fascinateDo.
Schematic diagram when Figure 11 does hypsokinesis action for car appearance regulating system, now front overhangFrame control valve 14 is switched on and is adjusted to right position, and two rear suspension hydraulic lock 38 are switched on simultaneously,Rear suspension control valve 20 is switched on and is adjusted to left position in addition, makes front axle hydro pneumatic suspension oil-filled,Rear diaxon hydro pneumatic suspension is drained the oil, thereby realizes the hypsokinesis action of car body.
It should be noted that, those skilled in the art can easily understand, involved in the present inventionCar appearance adjustable oil-gas suspension device can be arranged in the above described manner on dissimilar vehicle, andAnd in the case of not departing from the spirit and scope of the present invention that are defined by the following claims, canThe present invention is carried out to various multi-form changes and change.
Claims (7)
1. an oil gas hanging unwheeling appearance regulating system, mainly comprise power source, sensor, fuel tank,Unloader, overflow valve, front suspension control valve, rear suspension control valve and suspension hydraulic lock, whereinPower source is connected with fuel tank, power source output successively connect oil-feed filter and unloader, unloaderAdopt two-position three way magnetic valve, being embodied as regulating system by electromagnetic switch provides pressure oil; OverflowStream valve is in parallel with unloader, regulates the control that can realize system critical pressure by handle;The oil-out b end of unloader by high pressure hard tube respectively with front suspension control valve and rear suspensionThe oil inlet end of control valve connects, and front suspension control valve and rear suspension control valve are 3-position-3-way electromagnetismValve, in the time that system is not worked, magnetic valve is in meta off-state; Front suspension control valve and rear overhangThe oil outlet end of frame control valve is series throttle group and suspension hydraulic lock successively, and suspension hydraulic lock is twoPosition two-way electromagnetic valve, suspension hydraulic lock is connected with hydro pneumatic suspension by pipeline; When suspension hydraulic lockWhen power-off, the fluid in hydro pneumatic suspension and the isolation of car appearance regulating system, guarantee vehicle attitude and rowSail the stable of performance, in the time that suspension hydraulic lock is switched on, the fluid in hydro pneumatic suspension will be by car appearanceRegulating system flows back to fuel tank.
2. car appearance regulating system according to claim 1, is characterized in that: choke valve groupThe form realization being in parallel with decline choke valve again after adopting check valve to connect with rising choke valveThe control of hydro pneumatic suspension oil charging-discharging speed and flow, ensures the steady liter in car appearance adjustment processFall.
3. car appearance regulating system according to claim 1, is characterized in that: rear suspension byDiaxon composition, its one-sided hydro pneumatic suspension connects by high pressure hard tube, and after being in series with on pipelineObstacle detouring valve, rear obstacle detouring valve is two-position two-way solenoid valve, when after obstacle detouring valve in off-position, afterThe one-sided hydro pneumatic suspension of diaxon is communicated with formation equalizing type of suspension, when vehicle need to pass through trench or vertical wallWhen obstacle, rear obstacle detouring valve, in "on" position, disconnects one-sided rear diaxon hydro pneumatic suspension oil circuit,With the handling capacity of lifting vehicle.
4. car appearance regulating system according to claim 1, is characterized in that: described sensingDevice comprises angular transducer and pressure sensor, and described angular transducer carries out car appearance vertical groundDirection displacement control, described pressure sensor carries out axle load monitoring.
5. car appearance regulating system according to claim 4, is characterized in that: described angleDegree sensor is non-contact type angular transducer.
6. car appearance regulating system according to claim 1, is characterized in that: described carAppearance regulating system control mode is divided into manual control and automatically controls two kinds of patterns, automatically controls shapeUnder state, the corresponding car appearance of driver's operation Action Button, system is according to program setting, by adoptingCollection car appearance position signalling, reaches the predefined state of program; When under manual state of a control,Driver determines hydro pneumatic suspension oil charging-discharging by controlling the time length of car appearance Action ButtonTime length.
7. car appearance regulating system according to claim 1, is characterized in that: described carAppearance regulating system is arranged in car, by next door joint and high-pressure hose, described car appearance is regulatedSystem is connected with outside hydro pneumatic suspension.
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| CN201210185113.4A CN102673340B (en) | 2012-06-07 | 2012-06-07 | Oil gas hanging unwheeling appearance regulating system |
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| CN201210185113.4A CN102673340B (en) | 2012-06-07 | 2012-06-07 | Oil gas hanging unwheeling appearance regulating system |
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| CN102673340B true CN102673340B (en) | 2016-05-11 |
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| CN104057797B (en) * | 2013-03-22 | 2016-03-30 | 刘胜 | Intelligent hydraulic suspension unit and control method thereof |
| CN103953680B (en) * | 2014-03-20 | 2016-08-17 | 中国北方车辆研究所 | Modularity adjustable hanging temperature compensation system |
| CN104999884B (en) * | 2015-07-23 | 2018-11-30 | 北京理工大学 | A kind of hydraulic pressure suspension compound suspension |
| CN105857005B (en) * | 2016-03-24 | 2018-01-23 | 中国北方车辆研究所 | Single-acting cylinder load-sensitive proportional throttle valve group |
| CN105757017A (en) * | 2016-03-24 | 2016-07-13 | 中国北方车辆研究所 | Load-sensitive proportional throttle valve for double-acting cylinders |
| CN105736488B (en) * | 2016-03-24 | 2018-07-24 | 中国北方车辆研究所 | Single group double acting cylinder quantifies pump truck appearance regulating system |
| CN105774460B (en) * | 2016-03-24 | 2018-08-21 | 中国北方车辆研究所 | Vehicle appearance regulating system workflow |
| CN105882346B (en) * | 2016-03-24 | 2018-07-27 | 中国北方车辆研究所 | Constant displacement pump main pressure control valve group |
| CN106567904B (en) * | 2016-11-10 | 2018-11-13 | 湖北航天技术研究院特种车辆技术中心 | Liftable hydro pneumatic suspension hydraulic system |
| CN106739913B (en) * | 2016-11-15 | 2023-03-17 | 徐州徐工汽车制造有限公司 | Be applied to oil gas suspension electrically controlled device of five self-discharging cars |
| CN106739914A (en) * | 2016-12-24 | 2017-05-31 | 郑州新大方重工科技有限公司 | A kind of electrical system and control method for engineering truck suspension lifting system |
| CN107379910B (en) * | 2017-06-21 | 2023-03-14 | 长安大学 | Hydro-pneumatic suspension hydraulic system |
| CN109484123A (en) * | 2018-09-07 | 2019-03-19 | 陕西中航气弹簧有限责任公司 | A kind of bodywork height regulating system and method |
| CN111122173A (en) * | 2018-10-31 | 2020-05-08 | 中国北方车辆研究所 | Restraint device for loading white body of cab |
| CN111852965B (en) * | 2020-06-17 | 2022-08-09 | 中国北方车辆研究所 | Pressure-displacement comprehensive control system and control method based on rocker arm suspension |
| CN113027976B (en) * | 2021-01-29 | 2022-11-08 | 中国北方车辆研究所 | Vehicle posture adjusting valve set |
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| ATE246610T1 (en) * | 1994-02-25 | 2003-08-15 | Kinetic Ltd | HYDRAULIC SUSPENSION WITH INDEPENDENT CONTROL OF PITCH AND ROLL MOVEMENT |
| JP4297017B2 (en) * | 2004-09-14 | 2009-07-15 | トヨタ自動車株式会社 | Vehicle height adjustment system |
| CN101623994A (en) * | 2008-07-08 | 2010-01-13 | 贺勍 | Novel air spring rigidity adaptive continuous adjustment system |
| CN102320228B (en) * | 2011-08-23 | 2013-05-08 | 中国北方车辆研究所 | Method for adjusting vehicle position by adopting descending process |
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