CN203888565U - Electronically controlled air suspension system of commercial vehicle - Google Patents
Electronically controlled air suspension system of commercial vehicle Download PDFInfo
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- CN203888565U CN203888565U CN201420286113.8U CN201420286113U CN203888565U CN 203888565 U CN203888565 U CN 203888565U CN 201420286113 U CN201420286113 U CN 201420286113U CN 203888565 U CN203888565 U CN 203888565U
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- 239000000725 suspension Substances 0.000 title claims abstract description 72
- 230000008859 change Effects 0.000 claims abstract description 10
- 210000004712 air sac Anatomy 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 12
- 230000033228 biological regulation Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000004397 blinking Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000007963 capsule composition Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model provides an electronically controlled air suspension system of a commercial vehicle. The electronically controlled air suspension system comprises an ECU, a height control valve, a height sensor, an alarm device and an operation device. The ECU is respectively connected with the height sensor, the height control valve, an air pressure sensor, the alarm device, a remote control unit and an operation switch. The air pressure sensor is connected with an air spring air bag. The height change between a chassis and an axle is measured, electrical pins are connected with the ECU, and one to three height sensors can be mounted according to different system configurations. The remote control unit and the operation switch belong to manual operation devices, and the remote control unit, the operation switch and the alarm device are arranged in a cab together, and are connected with the ECU through the electrical pins. The height of a suspension can be manually adjusted, the normal driving suspension height is automatically adjusted, and truck floating bridge control, load monitoring, traction assistance and passenger car side keeling control can be achieved.
Description
Technical field
The utility model relates to a kind of airsuspension system, particularly a kind of commercial vehicle/comm..vehicle electronic control air suspension system.
Background technology
Airsuspension system (AIRMATIC) is to be popular in the advanced product of auto trade.In developed country, 100% medium-sized or above passenger vehicle has all been used airsuspension system, more than 40% truck, trailer and tractor truck airsuspension system.Its maximum advantage is: not only can improve driver and conductor's travelling comfort, and can play important protective effect to road.Conventionally, the airsuspension system that is arranged on the commercial vehicles such as large-bus, heavy duty truck comprises air bellow, height-control valve and air bellow etc.This system utilizes air elasticity to absorb little vibration, and the method for controlling by air pressure is adjusted to predetermined height by height of car.
Traditional Leaf Spring Suspension has unadjustable, can not relax preferably the vibration that vehicle frame is passed on road surface, makes vehicle road pavement have very strong impact load, causes reducing the shortcomings such as highway life-span; Conventional mechanical air suspension has control dumb, and function is few, regulates the shortcomings such as number of times is too much, and pressurized air consumption is large.
Utility model content
The utility model is dumb in order to solve mechanical air Suspension control, and function is few, regulates number of times too much, the problem that pressurized air consumption is large.
The utility model provides a kind of commercial vehicle/comm..vehicle electronic control air suspension system, and it comprises electronic control unit (ECU), height-control valve, height sensor, warning device and handling device.This electronic control unit (ECU) connects respectively height sensor, height-control valve, baroceptor, warning device, remote controller and handling device.Described baroceptor is connected with air-spring bellows; Described height-control valve comprises that central valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side kneel control cock and pontoon bridge control cock, various valve bodies can form multiple combination valve, different system configuration modes is realized its corresponding holding function by different combine valves, and this central authorities' valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side are kneeled control cock and be connected with electrical pin respectively with pontoon bridge control cock; Described height sensor is arranged on vehicle chassis, by movable fork, be connected with vehicle bridge, the height change between measuring vehicle chassis and vehicle bridge, is connected with electronic control unit (ECU) by electrical pin, according to different system configuration, one to three height sensor can be installed; Described remote controller and operating switch belong to manual operation device, are together loaded in operator's compartment and by electrical pin and are connected with electronic control unit ECU with warning device.
Preferably, described electronic control air suspension system comprises the right carrying air bag of drive axle and the left carrying air bag of drive axle, this right carrying air bag is communicated with gas port I, this left carrying air bag is communicated with gas port II, thereby be communicated with free air diffuser and exhaust passage, and then make the drive axle carrying air bag can inlet and outlet, and the right carrying air bag of this drive axle and the left carrying air bag of drive axle are also communicated with exhausr port I, and the gas in above-mentioned air bag is discharged by exhausr port I.
Preferably, described central valve connects free air diffuser and drive axle carrying air bags passage, and this central authorities' valve is controlled the switching of total free air diffuser and drive axle carrying air bags passage, and this central authorities' valve is also controlled by electronic control unit (ECU) by electrical pin.
Preferably, described electronic control air suspension system comprises the right carrying air bag of lifting bridge and the left carrying air bag of lifting bridge, the right carrying air bag of this lifting bridge connects gas port III, the left carrying air bag of this lifting bridge connects gas port IV, the right carrying air bag of this lifting bridge is also connected exhausr port II with the left carrying air bag of lifting bridge, so that exhaust.
Preferably, described electronic control air suspension system comprises pontoon bridge Lifting air sac, and this Lifting air sac connects gas port V, and this Lifting air sac connects exhausr port II, so that exhaust.
Preferably, described electronic control air suspension system comprises that side kneels control cock, right front carrying air bag, left front carrying air bag, the right carrying air bag of drive axle, the left carrying air bag of drive axle, whether this side is kneeled control cock and is controlled left front carrying air bag and be communicated with the gas circuit of right front carrying air bag, left front carrying air bag connects gas port I, right front carrying air bag connects gas port II, the left carrying air bag of drive axle connects gas port III, and the right carrying air bag of drive axle connects gas port IV
Preferably, described electronic control air suspension system comprises gas source low pressure warning device, and the threshold value of this gas source low pressure warning device is 6bar, the unit that bar is pressure, 1bar=0.1Mpa.
In above-mentioned arbitrary scheme, preferably, the limiting valve of exhausr port II 32 downlink connection 0.5bar, after restriction pontoon bridge air bags
gaspress the inner structure of too low damage air bag.
In above-mentioned arbitrary scheme, preferably, the right carrying air bag of drive axle is connected same baroceptor with the left carrying air bag of drive axle, and this baroceptor is connected to electronic control unit (ECU) by electrical pin.
In above-mentioned arbitrary scheme, preferably, the right carrying air bag of drive axle is connected respectively baroceptor with the left carrying air bag of drive axle, and two baroceptor are connected to electronic control unit (ECU) by electrical pin respectively.
In above-mentioned arbitrary scheme, preferably, described height sensor is arranged near chassis air bag, and this height sensor fork is connected in vehicle bridge, to measure chassis height, changes, and this height sensor is connected to ECU by electrical pin.
In above-mentioned arbitrary scheme, preferably, the quantity of described height sensor is at least one.
In above-mentioned arbitrary scheme, preferably, the quantity of described height sensor is 1-3, and it is arranged on respectively propons, drive axle left side and drive axle right side.
The mode of operation of commercial vehicle/comm..vehicle electronic control air suspension system described in the utility model is:
The basic elevating function of A.Electrical pin is controlled central valve, and then control air inlet and exhaust passage by central valve, right back air bag electromagnetic valve and left back air bag electromagnetic valve are controlled by electrical pin, and right front air bag electromagnetic valve and left front air bag electromagnetic valve are all controlled by electrical pin and electronic control unit (ECU).
When suspension rises, the pin that connects central valve must be switched on, simultaneously according to M/C signal or procedure auto-control, the pin that connects left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve is switched on simultaneously and is controlled corresponding air bag air inlet, thereby drives suspension to rise overally; Or connect one or two or three pins in the pin of left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve with
timeenergising, impels indivedual air bag air inlets of not adjusting to object height accordingly;
When suspension declines, the pin that connects left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve is switched on or indivedual pin energising simultaneously, controls corresponding air bags.
The highly automated adjusting of B.Automatically the condition regulating meets for manually pressing " the normal height of recovery " button or the speed of a motor vehicle the normal height adjusting threshold value of setting; When if the deviation between the normal height of current actual height and setting is greater than permissible error, automatically adjust, after Primary regulation completes, continue monitoring height, suspension through the several seconds postpones again to revise and regulate stabilization time, reduce the regulating error that road surface high vibration disturbs and large turning causes, finally enter every monitoring mode that carries out a height correction for 60 seconds.
C highly prevents toning control.For preventing height toning, in mode, introduce proportional integral (PI) and regulate.According to the gap between current height value and reference target value and the speed of height change, revise the intake and exhaust time ratio in each 0.3 second regulating cycle, reduce height over control.
D alarm mechanism.System has the gas source low pressure of 6bar threshold value reports to the police, and shows as amber light flicker; Height and position is not grown bright orange lamp in normal position; Sensor opens circuit and short-circuit alarming, and electromagnetic valve opens circuit and short-circuit alarming, shows as blinking red lamp, with dodging code diagnostics lines bonding, does not unclamp, and red light will glimmer and specifically dodge code.In height control process, occur and the incongruent height change value of expection, will report possibility fault, show as red light Chang Liang.According to difference configuration, can increase air bag air pressure alarm defencive function.Assurance system reliability service.
The height-control valve that the integrated pontoon bridge of E is controlled; and derivative overload protection and traction help function: in having configured the truck electronic control air suspension system of pontoon bridge control function; its pontoon bridge control cock and back axle height-control valve form combine valve: the air inlet of admission port I; gas port I is connected the support air bag of drive axle with gas port II; gas port III and gas port IV connect pontoon bridge support air bag; gas port V connects pontoon bridge Lifting air sac; exhausr port I is the exhaust of drive axle support air bag, each air bags mouth that exhausr port II is pontoon bridge.While needing pontoon bridge to rise, pin is switched on; While needing pontoon bridge to decline, pin is switched on.For the system of using the air-spring bellows of capsule formula and sleeve formula, exhausr port II is communicated with the limiting valve of 0.5bar, the inner structure of the too low damage air bag of air pressure after restriction pontoon bridge air bags.
F overload protection function principle of work.Adopt the air pressure of baroceptor monitoring drive axle support air bag, set the critical atmospheric pressure value that needs monitoring.The prerequisite of overload protection is not down state of pontoon bridge, the drive axle support air bag while not putting down for the protection of pontoon bridge.When pressure rises and exceed protection and put down pontoon bridge during critical air pressure, share the load of drive axle, if load continues to rise, make air bag pressure rises to 130% of normal full load air pressure, system will be reported to the police.When load continues to increase to the limit air pressure that support air bag bears, directly arrange the air in all support air bag of light, suspension puts down completely, prevents that air bag from splitting cruelly; Air bag air pressure in normal full load air pressure 130% within time, if the load of vehicle reduces, drive axle support air bag air pressure is reduced to below critical air pressure, again packs up pontoon bridge, again by drive axle, bears separately load.
G traction help function principle of work.The precondition of drawing help is that pontoon bridge puts down completely.When traction help function activates, it is the inflation of pontoon bridge Lifting air sac by the air of discharging in pontoon bridge support air bag simultaneously, make pontoon bridge increase, drive axle will bear more load and increase the friction force of drive wheel to ground, obtains larger propulsive effort, and vehicle start is easier.If pontoon bridge departs from ground completely and also fails to make drive axle support air bag air pressure to surpass 130% of normal full load air pressure in traction help process, do not need other to control to prevent air bag overvoltage; If in traction help vehicle in implementation when preload larger, pontoon bridge is not at uphill process but while departing from ground, the air pressure of drive axle support air bag has surpassed 130% of normal full load air pressure, and system can stop immediately pontoon bridge and continue vertical motion, with current state, draws help.
H side is kneeled principle.Side is kneeled function for passenger vehicle electronic control air suspension system.Realize side and kneel the left back air bag of control needs, right back air bag, right front air bag and left front air bag are independent control, and electronic control air suspension system is used the mode of a chassis level of three spot control, a height sensor of the common use of two air bags of propons, this height sensor is generally loaded near the propons air-spring bellows with car door homonymy, and adopt a kind of integrated side to kneel the height-control valve of control structure, its left front air bag communicates by a flow regulating valve with the air inlet valve of right front air bag, in order to create the independent condition of controlling left front right front air bag, between the electromagnetic valve of left front and right the first two air bag, increase a side and kneel the break-make that control cock is controlled flow regulating valve, side is kneeled control cock normality and is opened valve state in energising, side is kneeled the pin energising that control cock connects, be communicated with left and right air bag, when side is kneeled activation, side is kneeled control cock power-off, disconnect the flow regulating valve passage of left and right air bag, make their exhausts separately.According to actual vehicle needs, connection side is kneeled to the pin energising of control cock, realize the side of any side of vehicle and kneel.
More multioperation is all known for those of ordinary skills, repeats no more.
The technical scheme of commercial vehicle/comm..vehicle electronic control air suspension system described in the utility model comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.Commercial vehicle/comm..vehicle electronic control air suspension system described in the utility model can manual regulation suspension height, and the adjusting suspension height that normally travels automatically, and can realize truck pontoon bridge and control, Payload Monitoring And Control, and traction helps and passenger car side is kneeled control.Manual regulation can be controlled by meter panel switching plate or remote controller.Under different vehicle conditions, manually free lifting or automatic ration lifting suspension height.Can be switched at any time other normal ride-height, strengthen vehicle by the ability of complex road surface.The real-time current normal ride-height of monitoring vehicle.By automatic adjusting, can realize vehicle and keep different ride-height.Regulate altitude range freely to demarcate, by calibrating procedure, the normal height of the acquiescence of suspension, upper limit height, lower limit height are demarcated.Method of operation is simple, and system is reliable, has alarm mechanism.Highly regulate rapidly accurately, do not have too much adjusting, save energy consumption.Take Low Floor City Bus as example, compare with conventional mechanical formula Pneumatic Suspension, electronic control air suspension system can be saved 25% consumption of air.For trucies more than 3 axles, by monitoring load, control flexibly pontoon bridge, realize overload protection and draw help.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of a preferred embodiment of commercial vehicle/comm..vehicle electronic control air suspension system of the present utility model.
Fig. 2 is the height-control valve schematic diagram of realizing basic function embodiment illustrated in fig. 1.
Fig. 3 is proportional integral (PI) adjustment curve figure embodiment illustrated in fig. 1.
Fig. 4 is the height-control valve schematic diagram of integrated pontoon bridge control cock embodiment illustrated in fig. 1.
Fig. 5 is the height-control valve schematic diagram that integrated side embodiment illustrated in fig. 1 is kneeled function.
Mark in Fig. 1-Fig. 5 represents respectively:
1 admission port I 11 admission port II
21 gas port I 22 gas port II 23 gas port III 24 gas port IV 25 gas port V
26 gas port VI 27 gas port VII
31 exhausr port I 32 exhausr port II
41 remote controller 42 electronic control units (ECU) 43 signal 44 car chassiss
45 source of the gas 46 height-control valve 47 air-spring bellows 48 height sensors
61.1 pin 61.2 pin 61.3 pin 61.4 pins
62.1 pin 62.2 pin 63.3 pin 62.4 pins
63.1 pin 63.2 pin 63.4 pins.
The specific embodiment
In order to understand better the utility model, below in conjunction with accompanying drawing, describe in detail respectively according to the preferred embodiment of the commercial vehicle/comm..vehicle electronic control air suspension system of the utility model first aspect.
embodiment 1.1: Fig. 1 is according to the spelling group scheme of installation of a preferred embodiment of the commercial vehicle/comm..vehicle electronic control air suspension system of the utility model first aspect; Fig. 2 is single net chip architecture schematic diagram at A position embodiment illustrated in fig. 1; Fig. 4 is A position net sheet laminating type hot melt shaping mode and structural representation embodiment illustrated in fig. 1; Fig. 5 is drawing in side sectional elevation embodiment illustrated in fig. 4,
A kind of commercial vehicle/comm..vehicle electronic control air suspension system is provided in the present embodiment, and it comprises electronic control unit (ECU) 42, height-control valve 46, height sensor 48, warning device and handling device.This electronic control unit (ECU) 42 connects respectively height sensor 48, height-control valve 46, baroceptor, warning device, remote controller 41 and operating switch.Described baroceptor is connected with air-spring bellows 47, and described air-spring bellows 47 also connects source of the gas 45; Described height-control valve 46 comprises that central valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side kneel control cock and pontoon bridge control cock, various valve bodies can form multiple combination valve, different system configuration modes is realized its corresponding holding function by different combine valves, and this central authorities' valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side are kneeled control cock and be connected with electrical pin respectively with pontoon bridge control cock; Described height sensor 48 is arranged between vehicle chassis 44 and vehicle bridge, height change between vehicle chassis 44 and vehicle bridge, by electrical pin, be connected with electronic control unit (ECU) 42, described remote controller and operating switch belong to manual operation device, together be loaded in operator's compartment with warning device, by electrical pin, be connected with electronic control unit (ECU) 42.
In the present embodiment, described electronic control air suspension system comprises the right carrying air bag of drive axle and the left carrying air bag of drive axle, this right carrying air bag is communicated with gas port I 21, this left carrying air bag is communicated with 22 mouthfuls of gas port II, thereby be communicated with air inlet and exhaust and control pontoon bridge, the right carrying air bag of this drive axle and the left carrying air bag of drive axle are also communicated with exhausr port I 31, and the gas in above-mentioned air bag is discharged by exhausr port I 31.
In the present embodiment, described free air diffuser is all connected with central valve with exhaust passage, and this central authorities' valve is controlled the switching of free air diffuser and exhaust passage, and this central authorities' valve also connects power supply by electrical pin
In the present embodiment, described electronic control air suspension system comprises the right carrying air bag of lifting bridge and the left carrying air bag of lifting bridge, the right carrying air bag of this lifting bridge connects gas port III 23, the left carrying air bag of this lifting bridge connects gas port IV 24, the right carrying air bag of this lifting bridge is also connected exhausr port II 32 with the left carrying air bag of lifting bridge, so that exhaust.
In the present embodiment, described electronic control air suspension system comprises pontoon bridge Lifting air sac, and this Lifting air sac connects gas port V 25, and this Lifting air sac connects exhausr port II 32, so that exhaust.
In the present embodiment, described electronic control air suspension system comprises gas source low pressure warning device, and the threshold value of this gas source low pressure warning device is 6bar, the unit that bar is pressure, 1bar=0.1Mpa.
In the present embodiment preferably, the limiting valve of exhausr port II 32 downlink connection 0.5bar, the inner structure of the too low damage air bag of air pressure after restriction pontoon bridge air bags.
In the present embodiment, preferably, the right carrying air bag of drive axle is connected same baroceptor with the left carrying air bag of drive axle, and this baroceptor is connected to electronic control unit (ECU) by electrical pin.
In the present embodiment, preferably, the quantity of described height sensor is one.
In the present embodiment, described height sensor is arranged near chassis air bag, and this height sensor fork is connected in vehicle bridge, to measure chassis height, changes, and this height sensor is connected to ECU by electrical pin.
As shown in Figure 5, in the present embodiment, when needs side is kneeled function, described electronic control air suspension system comprises that side kneels control cock, right front carrying air bag, left front carrying air bag, the right carrying air bag of drive axle, the left carrying air bag of drive axle, whether this side is kneeled control cock and is controlled left front carrying air bag and be communicated with the gas circuit of right front carrying air bag, left front carrying air bag connects gas port VII 27, right front carrying air bag connects gas port VI 26, the left carrying air bag of drive axle connects gas port III 23, and the right carrying air bag of drive axle connects gas port II 22.
embodiment 1.2: commercial vehicle/comm..vehicle electronic control air suspension system, with embodiment 1.1, difference is, the right carrying air bag of drive axle is connected respectively a baroceptor with the left carrying air bag of drive axle, and two baroceptor are connected to electronic control unit (ECU) by electrical pin respectively.
embodiment 1.3: commercial vehicle/comm..vehicle electronic control air suspension system, with embodiment 1.1, difference is, the quantity of described height sensor is 3, and the passenger vehicle of kneeling with side is contained near propons place and drive axle left side and the drive axle right side air bag with car door homonymy by propons height sensor.
The mode of operation of the commercial vehicle/comm..vehicle electronic control air suspension system described in above-described embodiment is: the basic elevating function of A, electrical pin is controlled central valve, and then control air inlet and exhaust passage by central valve, right back air bag electromagnetic valve and left back air bag electromagnetic valve are controlled by electrical pin, right front air bag electromagnetic valve and left front air bag electromagnetic valve are all controlled by electrical pin and electronic control unit (ECU), and gas is entered by admission port 11.
When pontoon bridge rises, the pin 61.1 that connects central valve must be switched on, according to M/C signal or procedure auto-control signal 43, the pin 61.2,61.3,62.1,62.3 that connects left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve is switched on simultaneously and is controlled corresponding air bag air inlet, thereby drives pontoon bridge to rise; Or connect one or two or three pins colleagues energising in the pin 61.2,61.3,62.1,62.3 of left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve, impel corresponding air bag air inlet, thereby drive pontoon bridge to rise;
When pontoon bridge declines, the pin 61.2,61.3,62.1,62.3 that connects left back air bag electromagnetic valve, right back air bag electromagnetic valve, right front air bag electromagnetic valve and left front air bag electromagnetic valve is switched on or indivedual pin energising simultaneously, controls corresponding air bags.
The highly automated adjusting of B, the condition automatically regulating meets for manually pressing " the normal height of recovery " button or the speed of a motor vehicle the normal height adjusting threshold value of setting; When if the deviation between the normal height of current actual height and setting is greater than permissible error, automatically adjust, after Primary regulation completes, continue monitoring height, suspension through the several seconds postpones again to revise and regulate stabilization time, reduce the regulating error that road surface high vibration disturbs and large turning causes, finally enter every monitoring mode that carries out a height correction for 60 seconds.
C highly prevents toning control principle, for preventing height toning, as shown in Figure 3, introduces proportional integral (PI) and regulate in mode.According to the gap between current height value and reference target value and the speed of height change, revise the intake and exhaust time ratio in each 0.3 second regulating cycle, reduce height over control.
D alarm mechanism, system has the gas source low pressure of 6bar threshold value reports to the police, and shows as amber light flicker; Height and position is not grown bright orange lamp in normal position; Sensor opens circuit and short-circuit alarming, and electromagnetic valve opens circuit and short-circuit alarming, shows as blinking red lamp, with dodging code diagnostics lines bonding, does not unclamp, and red light will glimmer and specifically dodge code.In height control process, occur and the incongruent height change value of expection, will report possibility fault, show as red light Chang Liang.According to difference configuration, can increase air bag air pressure alarm defencive function.Assurance system reliability service.
The height-control valve that the integrated pontoon bridge of E is controlled; and derivative overload protection and traction help function: as shown in Figure 4; in having configured the truck electronic control air suspension system of pontoon bridge control function; its pontoon bridge control cock and back axle height-control valve form combine valve: 1 air inlet of admission port I; gas port I 21 is connected the support air bag of drive axle with gas port II 22; gas port III 23 connects pontoon bridge support air bag with gas port IV 24; gas port V 25 connects pontoon bridge Lifting air sac; exhausr port I 31 is drive axle support air bag, each air bags mouth that exhausr port II 32 is pontoon bridge.While needing pontoon bridge to rise, by pin 62.1 energisings; While needing pontoon bridge to decline, by pin 62.3 energisings.In the time of necessary, exhausr port II 32 is communicated with the limiting valve of 0.5bar, the inner structure of the too low damage air bag of air pressure after restriction pontoon bridge air bags.
F overload protection function principle of work, adopts baroceptor to monitor the air pressure of drive axle support air bag, sets the critical atmospheric pressure value that needs monitoring.The prerequisite of overload protection is not down state of pontoon bridge, the drive axle support air bag while not putting down for the protection of pontoon bridge.When pressure rises and exceed protection and put down pontoon bridge during critical air pressure, share the load of drive axle, if load continues to rise, make air bag pressure rises to 130% of normal full load air pressure, system will be reported to the police.When load continues to increase to the limit air pressure that support air bag bears, directly arrange the air in all support air bag of light, suspension puts down completely, prevents that air bag from splitting cruelly; Air bag air pressure in normal full load air pressure 130% within time, if the load of vehicle reduces, drive axle support air bag air pressure is reduced to below critical air pressure, again packs up pontoon bridge, again by drive axle, bears separately load.
G traction help function principle of work, the precondition of drawing help is that pontoon bridge puts down completely.When traction help function activates, it is the inflation of pontoon bridge Lifting air sac by the air of discharging in pontoon bridge support air bag simultaneously, make pontoon bridge increase, drive axle will bear more load and increase the friction force of drive wheel to ground, obtains larger propulsive effort, and vehicle start is easier.If pontoon bridge departs from ground completely and also fails to make drive axle support air bag air pressure to surpass 130% of normal full load air pressure in traction help process, do not need other to control to prevent air bag overvoltage; If in traction help vehicle in implementation when preload larger, pontoon bridge is not at uphill process but while departing from ground, the air pressure of drive axle support air bag has surpassed 130% of normal full load air pressure, and system can stop immediately pontoon bridge and continue vertical motion, with current state, draws help.
H side is kneeled principle, and as shown in Figure 5, side is kneeled function for passenger vehicle electronic control air suspension system.Realizing side kneels control and needs left back air bag, right back air bag, right front air bag and left front air bag to be independent control, and electronic control air suspension system is used the mode of a chassis level of three spot control, a height sensor of the common use of two air bags of propons, left front air bag communicates by a flow regulating valve with the air inlet valve of right front air bag.In order to create the independent condition of controlling left front right front air bag, between these two valves, increase a side and kneel the break-make that control cock is controlled flow regulating valve, side is kneeled control cock normality and is opened valve state in energising, side is kneeled pin 63.1 energisings that control cock connects, be communicated with left and right air bag, when side is kneeled activation, side is kneeled control cock power-off, the flow regulating valve passage that disconnects left and right air bag, makes their exhausts separately.According to actual vehicle needs, connection side is kneeled to pin 62.1 & 61.2 or 62.3 & 61.3 energisings of control cock, 61.4 and 62.4 and 62.2,63.2,63.4 ground connection, realize the side of any side of vehicle and kneel.
More multioperation is all known for those of ordinary skills, repeats no more.
The technical scheme of the commercial vehicle/comm..vehicle electronic control air suspension system described in the present embodiment comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination are still protection domain of the present utility model.Commercial vehicle/comm..vehicle electronic control air suspension system described in the utility model can manual regulation suspension height, and the adjusting suspension height that normally travels automatically, and can realize truck pontoon bridge and control, Payload Monitoring And Control, and traction helps and passenger car side is kneeled control.Manual regulation can be controlled by meter panel switching plate or remote controller.Under different vehicle conditions, manually free lifting or automatic ration lifting suspension height.Can be switched at any time other normal ride-height, strengthen vehicle by the ability of complex road surface.The real-time current normal ride-height of monitoring vehicle.By automatic adjusting, can realize vehicle and keep different ride-height.Regulate altitude range freely to demarcate, by calibrating procedure, the normal height of the acquiescence of suspension, upper limit height, lower limit height are demarcated.Method of operation is simple, and system is reliable, has alarm mechanism.Highly regulate rapidly accurately, do not have too much adjusting, save energy consumption.Take Low Floor City Bus as example, compare with conventional mechanical formula Pneumatic Suspension, electronic control air suspension system can be saved 25% consumption of air.For trucies more than three axles, by monitoring load, control flexibly pontoon bridge, realize overload protection and draw help.
Claims (10)
1. a commercial vehicle/comm..vehicle electronic control air suspension system, it comprises electronic control unit ECU, height-control valve, height sensor, warning device and handling device, this electronic control unit ECU connects respectively height sensor, height-control valve, baroceptor, warning device, remote controller and handling device, and described baroceptor is connected with air-spring bellows; Described height-control valve comprises that central valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side kneel control cock and pontoon bridge control cock, various valve bodies can form multiple combination valve, different system configuration modes is realized its corresponding holding function by different combine valves, and this central authorities' valve, right front air bag electromagnetic valve, right back air bag electromagnetic valve, left front air bag electromagnetic valve, left back air bag electromagnetic valve, side are kneeled control cock and be connected with electrical pin respectively with pontoon bridge control cock; Described height sensor is arranged on vehicle chassis, by movable fork, is connected with vehicle bridge, and the height change between measuring vehicle chassis and vehicle bridge, is connected with electronic control unit ECU by electrical pin, it is characterized in that: one to three height sensor is installed; Described remote controller and operating switch belong to manual operation device, are together loaded in operator's compartment and by electrical pin and are connected with electronic control unit ECU with warning device.
2. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 1, it is characterized in that: described electronic control air suspension system comprises the right carrying air bag of drive axle and the left carrying air bag of drive axle, this right carrying air bag is communicated with gas port I (21), this left carrying air bag is communicated with gas port II (22) mouthful, and the right carrying air bag of this drive axle and the left carrying air bag of drive axle are also communicated with exhausr port I (31).
3. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 1 or 2, it is characterized in that: described central valve connects free air diffuser and drive axle carrying air bags passage, this central authorities' valve is controlled the switching of total free air diffuser and drive axle carrying air bags passage, and this central authorities' valve is also controlled by electronic control unit by electrical pin.
4. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 3, it is characterized in that: described electronic control air suspension system comprises the right carrying air bag of lifting bridge and the left carrying air bag of lifting bridge, the right carrying air bag of this lifting bridge connects gas port III (23), the left carrying air bag of this lifting bridge connects gas port IV (24), and the right carrying air bag of this lifting bridge is also connected exhausr port II (32) with the left carrying air bag of lifting bridge.
5. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 4, is characterized in that: described electronic control air suspension system comprises pontoon bridge Lifting air sac, and this Lifting air sac connects gas port V (25), and this Lifting air sac connects exhausr port II (32).
6. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 5, is characterized in that: described electronic control air suspension system comprises gas source low pressure warning device, and the threshold value of this gas source low pressure warning device is 6bar.
7. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 6, is characterized in that: exhausr port II (32) downlink connection limiting valve.
8. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 7, is characterized in that: the right carrying air bag of drive axle is connected same baroceptor with the left carrying air bag of drive axle, and this baroceptor is connected to electronic control unit by electrical pin.
9. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 7, is characterized in that: the right carrying air bag of drive axle is connected respectively baroceptor with the left carrying air bag of drive axle, and two baroceptor are connected to electronic control unit by electrical pin respectively.
10. commercial vehicle/comm..vehicle electronic control air suspension system as claimed in claim 8 or 9, it is characterized in that: described height sensor is arranged near chassis air bag, this height sensor fork is connected in vehicle bridge, this height sensor is connected to ECU by electrical pin, and described height sensor is also arranged on respectively drive axle left side and drive axle right side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420286113.8U CN203888565U (en) | 2014-05-31 | 2014-05-31 | Electronically controlled air suspension system of commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420286113.8U CN203888565U (en) | 2014-05-31 | 2014-05-31 | Electronically controlled air suspension system of commercial vehicle |
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| CN203888565U true CN203888565U (en) | 2014-10-22 |
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| CN104827848A (en) * | 2015-04-21 | 2015-08-12 | 金龙联合汽车工业（苏州）有限公司 | Three-axle carriage air suspension air channel control system |
| CN105539056A (en) * | 2015-12-25 | 2016-05-04 | 徐州重型机械有限公司 | Air suspension control system and method for crane and crane |
| CN107415620A (en) * | 2017-03-17 | 2017-12-01 | 奉化鑫益气动工程有限公司 | A kind of automobile chassis elevating control circuit |
| CN108340746A (en) * | 2018-01-30 | 2018-07-31 | 瑞立集团瑞安汽车零部件有限公司 | A kind of passenger car electronics suspension system that air source self-loopa utilizes |
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| CN108973576A (en) * | 2018-08-12 | 2018-12-11 | 苏州青科艾莉电子科技有限公司 | A kind of anti-rollover regulation method of road vehicle high-performance electronic control air suspension |
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| CN111121587A (en) * | 2020-01-09 | 2020-05-08 | 阿尔特汽车技术股份有限公司 | Chassis ground clearance measures frock |
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| CN112297743A (en) * | 2019-08-01 | 2021-02-02 | 十堰科纳汽车电子股份有限公司 | A structure that can avoid the loss of load of the air suspension drive axle |
| CN112874428A (en) * | 2021-01-29 | 2021-06-01 | 武汉法拉唯汽车科技有限公司 | Chassis lifting system of pull type motor home |
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| CN114670594A (en) * | 2022-03-23 | 2022-06-28 | 浙江飞碟汽车制造有限公司 | Vehicle suspension axle air suspension control system and control method thereof |
| CN116811506A (en) * | 2023-04-26 | 2023-09-29 | 宇通客车股份有限公司 | Vehicle air suspension system, vehicle and vehicle height control method |
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| CN104827848B (en) * | 2015-04-21 | 2017-04-12 | 金龙联合汽车工业（苏州）有限公司 | Three-axle carriage air suspension air channel control system |
| CN104827848A (en) * | 2015-04-21 | 2015-08-12 | 金龙联合汽车工业（苏州）有限公司 | Three-axle carriage air suspension air channel control system |
| CN105539056B (en) * | 2015-12-25 | 2019-03-19 | 徐州重型机械有限公司 | For the air suspension control system of crane, method and crane |
| CN105539056A (en) * | 2015-12-25 | 2016-05-04 | 徐州重型机械有限公司 | Air suspension control system and method for crane and crane |
| CN110366669A (en) * | 2017-03-03 | 2019-10-22 | 威伯科有限公司 | Control device for a vehicle and vehicle having such a control device |
| CN107415620A (en) * | 2017-03-17 | 2017-12-01 | 奉化鑫益气动工程有限公司 | A kind of automobile chassis elevating control circuit |
| CN107415620B (en) * | 2017-03-17 | 2023-05-02 | 宁波泰鑫可精密机械科技有限公司 | Lifting control circuit of automobile chassis |
| WO2019007124A1 (en) * | 2017-11-27 | 2019-01-10 | 安徽江淮汽车集团股份有限公司 | Gyroscope assembly and driving cab stabilisation system |
| CN108340746A (en) * | 2018-01-30 | 2018-07-31 | 瑞立集团瑞安汽车零部件有限公司 | A kind of passenger car electronics suspension system that air source self-loopa utilizes |
| CN108973576A (en) * | 2018-08-12 | 2018-12-11 | 苏州青科艾莉电子科技有限公司 | A kind of anti-rollover regulation method of road vehicle high-performance electronic control air suspension |
| CN108944330A (en) * | 2018-08-30 | 2018-12-07 | 汽解放汽车有限公司 | A kind of airsuspension system and tractor of mechanical more height adjustments |
| CN108944330B (en) * | 2018-08-30 | 2024-01-19 | 一汽解放汽车有限公司 | A mechanical multi-height-adjustable air suspension system and tractor |
| CN112297743A (en) * | 2019-08-01 | 2021-02-02 | 十堰科纳汽车电子股份有限公司 | A structure that can avoid the loss of load of the air suspension drive axle |
| CN113126533A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Vehicle control method, vehicle control device and vehicle |
| CN111121587A (en) * | 2020-01-09 | 2020-05-08 | 阿尔特汽车技术股份有限公司 | Chassis ground clearance measures frock |
| CN111422018A (en) * | 2020-04-17 | 2020-07-17 | 东风商用车有限公司 | Commercial vehicle adaptive air suspension system and control method |
| CN112874428B (en) * | 2021-01-29 | 2023-02-28 | 武汉法拉唯汽车科技有限公司 | Pull type caravan chassis lifting system |
| CN112874428A (en) * | 2021-01-29 | 2021-06-01 | 武汉法拉唯汽车科技有限公司 | Chassis lifting system of pull type motor home |
| US11787255B2 (en) | 2021-09-20 | 2023-10-17 | Caterpillar Inc. | Suspension system with individual ride height and dampening control |
| CN114670594A (en) * | 2022-03-23 | 2022-06-28 | 浙江飞碟汽车制造有限公司 | Vehicle suspension axle air suspension control system and control method thereof |
| CN116811506A (en) * | 2023-04-26 | 2023-09-29 | 宇通客车股份有限公司 | Vehicle air suspension system, vehicle and vehicle height control method |
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Effective date of registration: 20201124 Address after: No. 456, Binhai 4th Road, Wenzhou Economic Development Zone, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Ruili Automobile Technology Co.,Ltd. Address before: 325200 Zhejiang city of Wenzhou province Ruian Economic Development Zone No. 1169 Yu Meng Lu Patentee before: Ruili Group Ruian Auto Parts Co.,Ltd. |
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Effective date of registration: 20240429 Address after: No. 456, Binhai 4th Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Patentee after: WENZHOU RUILI KORMEE AUTOMOTIVE ELECTRONICS CO.,LTD. Country or region after: China Address before: No.2666, Development Zone Avenue, Ruian Economic Development Zone, Wenzhou, Zhejiang 325200 Patentee before: Wenzhou Ruili Automobile Technology Co.,Ltd. Country or region before: China |
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