DE102008051546A1 - Valve assembly and spring system for a vehicle - Google Patents

Abstract

The invention relates to a valve arrangement for a lift axle (28) of a vehicle, in particular of a motor vehicle, with at least one valve (36) for a spring element (22) for springing the lift axle (28), and with at least one valve (34) for a spring element (20) for raising and lowering the lift axle (28), wherein the at least two valves (34, 36) are combined to form a valve unit (38).

Description

The The present invention relates to a valve arrangement for a lift axle of a vehicle, in particular of a motor vehicle, according to the preambles of claims 1 and 7. Des Furthermore, the invention relates to a spring system, in particular air spring system, for a vehicle, in particular a motor vehicle.

Lift trucks are known in trucks, trailers or semitrailers, which are provided in particular in the rear region of the truck or in the front region of a trailer (trailer axle). The lift axle is intended to receive a part of the total weight of the vehicle when the vehicle is loaded, for example a loaded truck. In particular, when the vehicle is unloaded, the lift axle can be raised, so that the associated wheels have no contact with the road. As a result, in particular fuel should be saved and abrasion of the tires should be avoided. An air spring device with a valve device for such a truck is already out of the DE 103 54 056 A1 to be known as known.

task The present invention is therefore a valve assembly or a spring system for a vehicle, in particular a truck, to create, which are simple and a fail-safe Ensure operation of the vehicle.

These Object is achieved by a valve assembly for a lift axle of a vehicle, in particular one Motor vehicle, with the features of claims 1 and 7 solved. Furthermore, this object is achieved by a Spring system, in particular air suspension system, for a vehicle, in particular a motor vehicle with the features of the claims 10 and 16 solved. Advantageous embodiments with appropriate and non-trivial developments of the invention are in the respective specified dependent claims.

The Valve arrangement for a lift axle of a vehicle, in particular a motor vehicle, according to claim 1 comprises at least one valve for at least one spring element for Springs of the lift axle and at least one valve for at least one Spring element for lifting and lowering the lift axle. According to the invention while the at least two valves combined to form a valve unit. Thus, it is possible, the two valves to a compact and interference-resistant unit in a block or a To summarize housing so that this or this in can be easily mounted on the vehicle. In particular it is conceivable that the valve unit, for example, on the at least a spring element for raising and lowering the lift axle or on the Spring element is arranged to spring the lift axle. It can It may also be that a valve unit in particular for control of two spring elements for springs of the lift axle is used. It can However, also be that for each spring element for springs the lift axle is provided a respective valve unit, namely especially if, but also two spring elements for lifting and lowering the lift axle are used.

The Valve unit is characterized in a further embodiment of the invention characterized in that this corresponding line inputs for lines of a pressure medium. With others Words, the valve unit is preferably designed so that this forms a finished unit with the valves, to which on the vehicle only the corresponding lines of the pressure medium connected Need to become. This applies in the same way in further Embodiment of the invention for at least one line input for a control line, in particular for connection with a central control device. Again, preferred is only one Plug connection or the like provided for the control line.

The Valve arrangement for a lift axle of a vehicle, in particular a motor vehicle, according to claim 7 comprises at least one valve for a spring element for lifting and Lowering the lift axle, wherein the at least one valve according to the invention in closed the raised or lowered end position of the lift axle is. This has the particular advantage that, for example, when driving the vehicle is not a permanent, for example electrical control signal, needs, but rather because of the closed position the valve in the raised or lowered end position of the Lift axle does not change the state of the valve triggered spring element can occur. Even with a failure the valve assembly, such as a power failure, Thus, the lift axle remains in their respective raised or lowered Position.

A possible change in the state of the by the Valve driven spring element can also optionally by a pressure sensor or the like, which, for example arranged in the spring element for lifting and lowering the lift axle is to be detected.

In a further embodiment of the invention, it has proven to be advantageous if the at least one valve is switched de-energized in the raised or lowered end position of the lift axle. This has the particular advantage that the energy consumption of the valve assembly and thus the fuel consumption of the vehicle can be reduced.

moreover It is advantageous if the valve unit is a type identifier includes. This makes it easy to the valve unit - for example to exchange - identify.

One Another advantage is that the valve assembly, in particular the valve unit having a decentralized control device. This has the particular advantage that few control lines a central control device of the spring system are required, but rather that the valve assembly is at least partially independent works and for example a signal of a height measuring device of the spring element directly to control the valve process can.

The above in connection with the valve arrangements according to the Claims 1 to 9 mentioned advantages also apply to a spring system, in particular air spring system, for a Vehicle, in particular a motor vehicle, according to claim 10th

These is further characterized by the fact that respective spring arrangements controllable by two axes via a common valve arrangement are. This results in a structurally very simple and Consequently, against interference prone to failure.

Further It is advantageous if a lifting and lowering device for manual Lifting and lowering of the vehicle is provided. In this way and For example, the vehicle may be loaded or unloaded be lowered, the lifting and lowering device to simple Way can be integrated into the spring system.

there results in a particularly simple lifting and lowering device when this is associated with at least one pilot valve, which both electrically as well as by means of a pressure medium is switchable.

The Spring system, in particular air suspension system, for a vehicle, in particular a motor vehicle, according to claim 16 includes at least two spring assemblies which correspond to a respective axis are assigned to the vehicle and which each at least one Have spring element, wherein a first spring element of the first Axis height sensor means for determining a spring height associated with the spring element or the corresponding first axis is, according to the invention, the height sensor device the first spring element of the first axis additionally a sensor device, in particular with a pressure sensor, which with a sensor device, in particular with a pressure sensor, the second spring element of the second axis communicates, wherein by means of the height sensor means the second axis mitsteuerbar with the first axis is mitsteuerbar. Thus, only one Height sensor device for at least two axes required. The coordination of the axes with each other can then by inexpensive sensor devices, for example with pressure sensors, be made, for example, a Pressure within the one spring element of an axis in whose Area also the height sensor device is provided, is measured and therefore the pressure within the other Spring element of the second axis by means of the corresponding pressure sensor is set.

Further Advantages, features and details of the invention will become apparent the following description of preferred embodiments as well as from the drawings; these show in:

1 a representation of a circuit diagram of a spring system, in particular an air spring system, for a vehicle, in particular a truck, wherein a valve arrangement is provided with at least one valve for a spring element for springing the lift axle and with at least one valve for a spring element for raising and lowering the lift axle, which are combined to form a valve unit, and wherein two spring arrangements are provided, which are assigned to a respective axis of the vehicle and which each have at least one spring element, wherein a first spring element of the first axis, a height sensor device for determining a spring height of the spring element or the corresponding first Axis is associated, which additionally has a sensor device, in particular with a pressure sensor which communicates with a sensor device, in particular with a pressure sensor, the second spring element of the second axis, wherein by means of the height sensor means the second axis with the first axis is mitsteuerbar;

2 a detail of an alternative of the circuit diagram of the spring system according to 1 ;

3 a representation of a circuit diagram of a spring system, in particular an air spring system, for a vehicle, in particular a truck, according to one of the embodiment according to 1 alternative variant, wherein in particular a lifting and lowering device for manually raising and lowering of the vehicle is provided;

4 a partial view of an alternative of the circuit diagram of the spring system ge Mäss 3 ;

5 a representation of a circuit diagram of a spring system, in particular an air spring system, for a vehicle, in particular a truck, according to one of the embodiments according to 1 and 3 alternative variant, wherein in particular an alternative venting of the formed as air springs spring elements of a lift axle is shown;

6a -G respective partial representations of circuit diagrams of alternative valve arrangements for a respective spring element, which are combined to form a valve unit,

7 a further illustration of a circuit diagram of a spring system according to an alternative variant.

In 1 a circuit diagram of an air spring system for a truck is shown. From a pressure generator is in 1 an accumulator 10 recognizable, which of a compressor not shown via a line 12 in which a check valve 14 is integrated, is fed. Furthermore, the pressure generating device is a valve 16 assigned, which is presently designed as a magnetically switchable 3/2-way valve.

About one after the valve 16 arranged line 18 are several spring elements 20 . 22 . 24 . 26 of axes explained in more detail below 28 . 30 . 32 supplied. In particular, the lift axle is recognizable 28 which the spring elements 22 a corresponding spring arrangement 23 for springs of the lift axle 28 during driving, etc. includes.

In addition, this is at least one spring element 20 provided, which for lifting and lowering the lift axle 28 is provided. Instead of a spring element 20 would also be several, in particular two spring elements 20 , conceivable.

Furthermore, it can be seen that the spring element 20 for lifting and lowering the lift axle 28 and the corresponding spring element 22 for springs of the lift axle 28 in driving, etc. each one valve 34 respectively. 36 , which are designed as magnetically switchable 2/2-way valves, are assigned. Both valves 34 . 36 are closed in the unswitched initial position shown here.

Furthermore, it can be seen that the two valves 34 . 36 form a valve arrangement which leads to a valve unit indicated by a dashed line 38 are summarized. This valve unit 38 For example, it may have a block or a housing, wherein another feature is that the valve unit 38 corresponding line inputs and outputs 40 . 42 for lines of the pressure medium - here compressed air - has. It can be seen, for example, that via the line input and output 40 both the valve 34 as well as the valve 36 be acted upon with compressed air.

It can for both spring elements 22 one valve unit each 38 be provided, namely in particular then, although two spring elements 20 with associated valves 34 for lifting and lowering the lift axle 28 be used. In addition, where appropriate, two or more spring elements 20 respectively. 22 through one and the same valve unit 38 to be controlled. In the present case, both spring elements 22 for springs of the lift axle 28 while driving etc. by one and the same valve 36 driven.

In addition to the line inputs and outputs 40 . 42 includes the valve unit 38 at least one line input and output 44 for a control line 46 for connection to a central control device 48 ,

Finally, in the present case, two pressure sensors 50 . 52 provided by means of which the pressure in the respective spring element 20 respectively. 22 can be measured. Also the pressure sensors 50 . 52 are in the valve unit 38 integrated. The pressure sensors 50 . 52 can thereby the air pressure within the bellows of the spring element 20 respectively. 22 measure by these are connected via a corresponding line or a channel with the corresponding bellows. It remains to be noted, however, that the pressure sensors 50 . 52 even within the block or housing of the valve unit 38 arranged and only via a respective channel with the interior of the spring element 20 respectively. 22 pressure-connected.

It is now apparent that the lift axle 28 Can be lifted by the valve 34 and the valve 16 to be switched, which causes compressed air in the line 18 is applied, which by switching the valve 34 in the bellows of the spring element 20 arrives. A lowering takes place by the valve 16 remains unswitched while the valve 34 is switched so that the compressed air via a the valve 16 then arranged silencer 54 reaches the outside. For lifting the lift axle 28 Thus, the or the spring elements are preferred 22 first by switching the valve 36 vented before following the two valves 16 and 34 be switched, whereby according to compressed air in the spring element 20 arrives. When lowering the lift axle 28 is preferably first the spring element 20 vented by the valve 34 is switched and thus the air over the unswitched valve 16 and the muffler 54 escape can. Following this, then can within the respective spring elements 22 a pressure is built up by the valves 16 and 36 be switched. Following this, the spring elements 22 the spring arrangement 23 again for driving - so to the springs of the lift axle 28 - be used. Of course, it would also be conceivable, the total escaping air back into the compressed air reservoir 10 to lead back. It is therefore apparent that in the present case for lifting and lowering the lift axle 23 or of the spring element 20 either the valve 16 switched or not switched while the valve 34 the valve unit 38 is switched in both cases.

The non-pressurized remaining of the valve 34 For example, when driving has the significant advantage that no currents flow while driving and basically no change in the state of the air spring or the spring element 20 can occur. A possible change is made by the pressure sensor 50 monitored, so that at any time can be admitted according to air or even dismissed.

For lifting the lift axle 23 can it - as explained above - also be necessary that the or the spring elements 22 also be vented. This is also done via the valve 16 , which remains in its rest position and is therefore unswitched. For driving, so if the or the spring elements 22 To be ventilated, is the valve 16 at least temporarily switched, so that in the line 18 Air with a corresponding pressure is applied, which for the unfolding of the spring bellows of the respective spring element 22 can be used.

The axes 30 and 32 In the present case, they are close to the lift axle 28 arranged drive axle 30 as well as the front axle 32 of the truck. Each spring element 24 respectively. 26 is in each case designed as a 2/2-way valve valve 56 . 58 assigned, which in turn are de-energized or closed in the initial state. By switching the respective valve 56 . 58 is the corresponding spring element 24 respectively. 26 filled with compressed air, provided the valve 16 is also switched. For bleeding the spring elements 24 respectively. 26 becomes the respective valve 56 . 58 switched again, but not the valve 16 , About the line 18 Thus, the compressed air can escape or alternatively to the compressed air reservoir 10 stream back.

It can be seen that in the present case each spring element 24 respectively. 26 a valve 56 . 58 assigned. If necessary, it would also be conceivable to use the spring elements 24 respectively. 26 the respective spring arrangement 64 . 66 the assigned axis 30 . 32 only one valve at a time 56 . 58 assigned. Furthermore, it can be seen that the respective valve 56 . 58 with a corresponding sensor device in the form of a pressure sensor 60 and a respective height sensor 62 a height sensor device 64 again a respective valve unit 38 forms, which in the manner of the previously described valve unit 38 is designed. By means of the height sensor device 63 is the currently set height of the spring element 24 . 26 detectable, using the pressure sensor 60 a pressure within the bellows of the spring element 24 respectively. 26 is detected. It should be noted that for both spring elements 24 respectively. 26 the respective spring arrangement of the corresponding axis 30 . 32 in principle also a valve unit 38 enough.

As in 1 is recognizable, are for the axles 23 and 64 two spring arrangements 23 respectively. 64 provided, which in each case at least one spring element 22 . 24 have, wherein the spring element 64 the first axis (drive axle 30 ) the height sensor device 63 for determining the spring height of the spring element 24 or the corresponding first axis 64 is assigned, which in addition the sensor device with a pressure sensor 60 having, with the sensor device with the pressure sensor 52 of the spring element 22 the second axis 23 (Lifting axle 28 ), whereby by means of the height sensor device 63 the second axis 28 with the first axis 30 is mitsteuerbar. In other words, for both valve units 38 the two spring elements 22 respectively. 24 only a height sensor device 63 on the drive axle 64 needed. The adjustment of the height of the lift axle 28 via the two pressure sensors 60 . 52 which can be matched in their pressure, for example, so that both spring elements 22 respectively. 24 have the same height. On a separate height sensor for the lift axle 28 can thus be dispensed with.

Finally, in 1 respective control lines 46 recognizable, over which the central control device 48 with the respective valve units 38 connected is.

2 shows a partial view of an alternative spring system according to 1 , wherein a valve unit 38 is provided, by means of which both spring elements 26 - For example, the front axle 30 - are controllable. In this case, the valve unit comprises 38 two valves 68 . 70 and a throttle 71 , In addition, in turn, a height sensor device 63 and a pressure sensor 60 intended. In principle, just the front axle is suitable 30 especially good for using only one valve unit 38 because the front axle 30 usually a rigid axle. The valve unit 38 is in turn related to the type of 1 described valve unit 38 educated. That means the valves 68 . 70 as well as the throttle 71 and the height sensor device 63 into a mean seed block or integrated into a common housing. This block in turn has corresponding line inputs and outputs for lines of the pressure medium and at least one line input or output for a control line 46 on. Through the two valves 68 respectively. 70 is the respective spring element 26 ventilated or vented, in each case via the line 18 as well as the valve 16 , About the throttle 71 are the two spring elements 26 interconnected to a throttled pressure equalization between the two spring elements 28 to reach, so that they essentially always have the same spring height. For this reason, it is sufficient if only one of the spring elements 26 a height sensor device 63 assigned. This height sensor device 63 again, is essentially also in the valve unit 38 integrated.

3 shows a representation of the circuit diagram of the spring system according to one of the embodiment according to 1 alternative variant, where initially the axes 28 . 30 and 32 as a lift axle 28 as well as trailer axles 30 . 32 a trailer are formed.

Another modification concerns a type identifier 90 in the form of an RFID, in which by electronic means an assignment of the respective valve unit 38 can be achieved. The type indicator 90 is particularly advantageous because both the valves 34 and 36 as well as the pressure sensors 50 and 52 into the valve unit 38 are integrated. The type indicator 90 therefore helps that the respective valve unit 38 or their equipment can be easily identified. This of course applies to all valve sensor units 38 of the type described here. In addition, two spring elements are present 20 for lifting and lowering the lift axle 28 intended.

Another modification concerns the fact that the two trailer axles 30 . 32 only via a valve sensor unit 38 with the valve 56 to be controlled.

Finally, there is a modification in that by mechanical means lifting and lowering these four air springs 24 . 26 or the two trailer axles 30 . 32 is possible, for example, to facilitate loading.

This is done by means of a lifting and lowering device 72 for manually raising and lowering the vehicle or axles 30 . 32 , The lifting and lowering device 72 includes two valves 74 . 76 and a double check valve 78 , First, it should be noted that the two valves 74 . 76 be switched by manual operation between the two positions. The one, shown on the left valve 74 serves to lift, the other valve 76 to sink. Output side of the two valves 74 . 76 is the double check valve 78 provided to which the control lines 94 and 96 connect. Depending on which valve 74 respectively. 76 is actuated, thus becomes the control line 94 or 96 pressurized with air pressure. Based on this pressurization of the control lines 94 . 96 are the two, in themselves magnetically switchable valves 56 . 16 by means of through the valves 74 . 76 initiated compressed air switchable. This principle is below in conjunction with 4 explained.

4 shows a partial view of an alternative of the circuit diagram of the spring system according to 3 , While in 3 for example, a valve 56 is used, which is both magnetically and pneumatically switchable shows 4 an arrangement 56 as an alternative to the valve 56 according to 3 , There is a pilot valve 80 and a holding valve 98 intended. The pilot valve 80 is magnetically switchable while the holding valve 98 by compressed air, which through the pilot valve 80 can pass through, is switchable. While the pilot valve 80 a 3/2-way valve is the holding valve 98 a 2/2-way valve. The pilot valve 80 is via a double check valve 100 over the line 18 with the valve 16 connected. The double check valve 100 is a pressure reducer 102 downstream. It can now be seen that when switching the left valve 74 through which a lifting of the axle 30 ( 3 ) is caused, both a pressure in the control line 94 as well as the control line 96 is applied. The pressure within the control line 94 causes a flow through the pilot valve 80 so that the holding valve 98 is switched. The pressurization of the control line 96 causes the valve 16 is switched. Overall, it is thus achieved that both the valve 16 as well as the valve 98 are switched, whereby the spring element 24 pressurized air is.

In the opposite case, if a lowering is to take place and consequently the valve 76 is pressed, only the control line 94 pressurized. Through the double check valve 78 on the other hand, a pressurization of the control line 96 prevented. Consequently, via the control line 94 turn the holding valve 98 switched while the valve 16 remains unmoved. This causes via the switched holding valve 98 and the unswitched valve 16 Air from the spring element 24 can escape, causing the axis 30 is lowered.

5 shows an illustration of a circuit diagram of the spring system according to one of the embodiments according to 1 and 3 alternative variant, and in particular another variant of the venting of the spring element 22 is shown. As already related to 1 been explained is, it is in principle desirable that the or the spring elements 22 the lift axle 28 then be vented when the spring element 20 for lifting the lift axle 28 is ventilated. In 5 is therefore an alternative to 1 recognizable. Will be the valve 34 for venting the spring element 20 switched, so will a bypass 104 pressurized with compressed air. About the bypass 104 becomes a basically magnetically switchable valve 82 which is the valve 36 according to 1 corresponds, pressurized with compressed air and therefore closed. The inside of the spring element 20 Compressed air can thus via another bypass 106 under flow through a check valve 84 and another line 108 back to a valve 86 reach. This valve 86 must be switched separately, so that a venting of the spring element 22 can be done. Thus, it can be seen overall that when pressure is applied to the spring element 20 automatically a venting of the spring element 22 takes place, so that, for example, the lift axle 28 by means of the spring element 20 raised and at the same time their spring elements 20 be vented to the suspension in the pre-operation. For aerating the spring elements 22 as well as the spring elements 24 serves the respective valve 110 , If this is switched, compressed air reaches both the spring elements 22 as well as in the spring elements 24 , The valve 34 can be switched, so that the spring element 20 is vented. The valve must be the same 86 be switched.

In the 6a -G are respective partial representations of circuit diagrams of alternative valve assemblies or valve units 38 for a respective spring element 24 . 26 shown.

6a shows a valve unit 38 in which besides the air spring 24 and the valve 56 a transponder or the like identifier 90 is provided, which allows an assignment.

6b shows a height sensor 62 in the air spring 24 is integrated.

In 6c is also a pressure sensor 60 also integrated.

6d shows a basic variant.

6e additionally shows a decentralized control 92 ,

6f shows a valve unit 38 especially for the lift axle 28 ,

6g corresponds to the embodiment according to 3 , 5 and provides a supplement for example from 1 It is stated that the pressure in the air spring 24 for lifting and lowering is then maximum, if it is minimal in the lift axle or vice versa.

Finally shows 7 a further, partial representation of a circuit diagram of a spring system according to an alternative variant. 7 shows in particular an alternative of the valve unit 38 for controlling the spring element 20 or the spring elements 22 for lifting and lowering the lift axle 28 or for suspension during driving. In particular, the two pressure sensors are shown 50 . 52 , by means of which a respective pressure within the spring element 20 or the spring elements 50 is measurable. While lowering or lifting the lift axle 28 takes place between a respective minimum value and a maximum value, a constant comparison of the pressure values within the spring element 20 respectively. 22 by means of the pressure sensors 50 respectively. 52 , In this case, an approximately equal pressure between the spring elements is always in the present case 22 or the spring element 20 set. This can be done, for example, by alternately switching the valves 34 and 36 respectively. So there is always a venting of the respective one spring element 20 or 22 and vice versa venting of the other spring element 22 respectively. 20 instead of.

QUOTES INCLUDE IN THE DESCRIPTION

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Cited patent literature

• - DE 10354056 A1 [0002]

Claims (17)

Valve arrangement for a lift axle ( 28 ) of a vehicle, in particular a motor vehicle, with at least one valve ( 36 ) for a spring element ( 22 ) for springing the lift axle ( 28 ), and with at least one valve ( 34 ) for a spring element ( 20 ) for lifting and lowering the lift axle ( 28 ), characterized in that the at least two valves ( 34 . 36 ) to a valve unit ( 38 ) are summarized. Valve arrangement according to claim 1, characterized in that the valve unit ( 38 ) corresponding line inputs ( 40 . 42 ) for lines of a pressure medium. Valve arrangement according to claim 1 or 2, characterized in that the valve unit ( 38 ) at least one line input ( 44 ) for a control line, in particular for connection to a central control device ( 48 ), having, Valve arrangement according to one of claims 1 to 3, characterized in that at least one sensor, in particular a pressure sensor ( 50 . 52 . 60 ), into the valve unit ( 38 ) is integrated. Valve arrangement according to one of claims 1 to 4, characterized in that the valve unit ( 38 ) a type designation ( 90 ). Valve arrangement according to one of claims 1 to 5, characterized in that the valve unit ( 38 ), a decentralized control device ( 92 ) having. Valve arrangement for a lift axle ( 28 ) of a vehicle, in particular a motor vehicle, with at least one valve ( 34 ) for a spring element ( 20 ) for lifting and lowering the lift axle ( 28 ), characterized in that the at least one valve ( 34 ) in the raised or lowered end position of the lift axle ( 28 ) closed is. Valve arrangement according to claim 7, characterized in that in that the valve arrangement according to one of claims 1 to 6 is formed. Valve arrangement according to claim 7 or 8, characterized in that the at least one valve ( 34 ) in the raised or lowered end position of the lift axle ( 28 ) is de-energized. Spring system, in particular air spring system, for a vehicle, in particular a motor vehicle, with at least one Valve arrangement according to one of claims 1 to 9. Spring system according to claim 10, characterized in that at least two spring elements ( 22 . 24 . 26 ) of different axes ( 30 . 32 ) via a common valve unit ( 38 ) are controllable. Spring system according to claim 10 or 11, characterized in that a lifting and lowering device ( 72 ) is provided for manual lifting and lowering of the vehicle. Spring system according to one of claims 10 to 12, characterized in that the lifting and lowering device ( 72 ) at least one pilot valve ( 80 ) and a holding valve ( 98 ) assigned. Spring system according to one of claims 10 to 13, characterized in that the lifting and lowering device ( 72 ) respective control lines ( 94 . 96 ) associated with switching by pressurizing the pressure medium to corresponding valves ( 16 . 80 ) are connected. Spring system according to one of claims 10 to 14, characterized in that when the first valve is switched ( 34 ) the second valve ( 82 ) by pressurization via a control line ( 104 ) is closed, with a bypass ( 104 ) is provided, via which a the second valve ( 82 ) associated spring element ( 22 ) is vented. Spring system, in particular air spring system, for a vehicle, in particular a motor vehicle, with at least two spring arrangements ( 64 . 23 ) which of a respective axis ( 30 . 28 ) of the vehicle are assigned and which in each case at least one spring element ( 24 . 22 ), wherein a first spring element ( 24 ) of the first axis ( 30 ) a height sensor device ( 62 ) for determining a spring height of the spring element ( 24 ) or the corresponding first axis ( 30 ), characterized in that the height sensor device ( 62 ) of the first spring element ( 24 ) of the first axis ( 30 ) additionally a sensor device, in particular with a pressure sensor ( 60 ), which with a sensor device, in particular with a pressure sensor ( 52 ), the second spring element ( 22 ) of the second axis ( 28 ) communicates. Spring system according to claim 16, characterized that the spring system according to one of claims 10 to 15 is trained.