Valve assembly for a pneumatic system of a vehicle, in particular a commercial vehicle, pneumatic system, vehicle, in particular commercial vehicle, method and computer program and / or computer-readable medium

Abstract

The invention relates to a valve assembly (100) for a pneumatic system (250) of a vehicle (200a), in particular a commercial vehicle (200b), comprising: an outlet valve assembly (110) for deaerating the pneumatic system (250), a control device (120) for operating the valve assembly (110) for aerating and deaerating a pneumatic actuator (210), wherein the control device (120) is configured to output, to the outlet valve assembly (110), a switching signal (125) for switching the outlet valve assembly (110), and the outlet valve assembly (110) can be switched, based on the switching signal (125), to a noise-reducing first deaerating mode (M1) or a fast-deaerating second deaerating mode (M2).

Description

[0001] Valve arrangement for a pneumatic system of a vehicle, in particular a commercial vehicle, pneumatic system, vehicle, in particular a commercial vehicle, method and computer program and / or computer-readable medium

[0002] The present invention relates to a valve arrangement for a pneumatic system of a vehicle, in particular a commercial vehicle. The disclosure also relates to a pneumatic system for a vehicle, in particular a commercial vehicle, a vehicle, in particular a commercial vehicle, a method for operating a valve arrangement for a pneumatic system of a vehicle, in particular a commercial vehicle, and a computer program and / or computer-readable medium.

[0003] For modern vehicles, reducing noise emissions is becoming increasingly important with the increasing electrification of drive systems, especially for partially and / or exclusively electrically powered vehicles.

[0004] A pneumatic system can be a source of noise. Such systems comprise a compressed air supply and / or a compressor, which can apply air pressure to an inlet valve. The inlet valve is connected to the working volume of a pneumatic actuator, which releases a flow of air through an outlet valve during and / or after actuation. Noise can arise, in particular, when the outlet valve is vented. It is possible to throttle the outlet. However, throttling the outlet can influence the actuation of the actuator. For example, in a service brake system as a pneumatic system, throttling is not necessary in certain situations, but rather the outlet valve must be actuated to vent the air as quickly as possible.

[0005] DE 10 2020 214 971 A1 discloses a brake system for a motor vehicle comprising a hydraulic line system with at least one normally closed hydraulic valve, wherein an output stage is provided for electrically controlling the at least one hydraulic valve. To minimize noise emissions, the output stage is provided with an analog-controllable output stage and a computing unit configured to determine a valve current based on a pressure difference across the hydraulic valve and to control the output stage to provide the valve current to the hydraulic valve.

[0006] DE 10 2014 009 179 A1 discloses a valve arrangement for controlling the brakes of a pressure-medium-operated brake system of a vehicle, comprising at least one relay valve arranged in a housing and at least one solenoid valve for controlling the relay valve. In order to simplify the manufacture and assembly of the valve arrangement, to keep the required installation space very small, and to be able to reduce the number of components, the housing has at least one cylindrical receptacle, closed on one side and forming a control chamber, a working chamber, and a pressure chamber, for a relay valve piston, an insert, and a carrier element for a plate valve, which can be inserted axially into the receptacle in this order and fixed therein. The carrier element can have a receiving space for a noise damper.

[0007] Furthermore, DE 102019 131 110 A1 discloses a method for safely stopping a commercial vehicle in an emergency with an electronically controllable pneumatic braking system with spring brake cylinders on at least one axle. The electronically controllable pneumatic braking system comprises a service brake system and at least one first redundancy system. In the event of a first fault in the service brake system, the vehicle is braked by the redundancy system. The electronically controllable braking system further comprises an unthrottled venting path and a throttled venting path for venting the spring brake cylinders. The method is characterized by the steps of: determining a second fault in the redundancy system, and in response thereto: automated throttled venting of at least one of the spring brake cylinders via the throttled venting path for slowly and safely stopping the vehicle.

[0008] The invention is therefore based on the object of enriching the state of the art. One embodiment achieves the object of reducing noise emissions from pneumatic vents and, if necessary, simultaneously achieving rapid venting. This object is achieved by a method according to claim 1 and the subject matter of the further independent claims. The subclaims specify preferred developments of the invention.

[0009] According to one aspect of the invention, a valve arrangement for a pneumatic system of a vehicle, in particular a commercial vehicle, is provided. The valve arrangement comprises: an outlet valve arrangement for venting the pneumatic system, a control unit for operating the valve arrangement for inflating and deflating a pneumatic actuator, wherein the control unit is configured to output a switching signal for switching the outlet valve arrangement to the outlet valve arrangement, and the outlet valve arrangement can be switched into a noise-reducing, first venting mode or a fast-venting, second venting mode based on the switching signal.

[0010] The invention is based on the fact that noise-damping measures in the exhaust valve arrangement or in a venting part are generally often accompanied by a reduction or limitation of venting gradients. This throttles the venting. However, since high gradients for venting, i.e., rapid venting, are not always absolutely necessary, it is provided that the venting mode can be switched based on the switching signal in order to operate the exhaust valve arrangement in the first venting mode for noise reduction or in the second venting mode for rapid venting.

[0011] The invention can be used to operate an electropneumatic vehicle system or device that is designed to switch between noise-reducing venting and rapid or gradient-optimized venting. Activation of the corresponding mode occurs via the switching signal output by the control unit, which can reflect a particular vehicle situation and / or the urgency or criticality of the respective venting, in order to trigger venting through the exhaust valve arrangement accordingly.

[0012] Optionally, the control unit is configured to output the switching signal taking into account a vehicle state, the vehicle speed, and / or a driving situation. The vehicle speed can be interpreted as characterizing a vehicle state and / or a vehicle condition. In particular, the driving situation can characterize whether a situation is stability-critical and / or safety-relevant for driving dynamics. For example, a stability-critical and safety-relevant driving situation can be emergency braking. The exhaust valve arrangement can be switched to the second venting mode at high vehicle speeds in a stability-critical and / or safety-relevant driving situation in order to enable appropriate dynamics and performance of the actuator, for example, when a brake is applied.However, the frequency of such interventions is low, and such interventions tend to occur at higher speeds, where noise emissions can be more easily tolerated in emergency situations. At low speeds, the exhaust valve arrangement can switch to the first venting mode to reduce noise emissions. Noise-optimized venting can be used primarily when stationary and / or at low vehicle speeds, as the venting noise is less masked by other vehicle and / or driving noises and can therefore be perceived as more disturbing.

[0013] Optionally, the first venting mode is noise-optimized and / or the second venting mode is vent-optimized. With the first venting mode, the exhaust valve arrangement can achieve venting with minimal noise emissions. With the second venting mode, the exhaust valve arrangement can achieve unthrottled and as fast as possible venting.

[0014] Optionally, the exhaust valve arrangement can be switched to a hybrid venting mode based on the switching signal, wherein the exhaust valve arrangement can be switched to the first venting mode and the second venting mode in the hybrid venting mode. In addition to or as an alternative to the first venting mode and the second venting mode, the exhaust valve arrangement can be switched to the first venting mode, the second venting mode, and / or an intermediate step in intermediate steps and / or with a time offset. For example, the hybrid venting mode can be a compromise or balance between a noise-optimized and a maximum-fast-venting, i.e., gradient-optimized, venting mode. Any number of intermediate steps can be controlled in the hybrid venting mode.

[0015] Optionally, the exhaust valve arrangement is configured to be switched to the first venting mode based on the switching signal above a pressure threshold defining the threshold condition and / or to the second venting mode below the pressure threshold. This allows venting to begin at a high pressure with reduced noise to avoid initial, loud noise emissions ("bang effect"). Once the initial noise emissions have been avoided, the system can switch to the fast-venting venting mode. In other words, the embodiment enables the exhaust valve to open initially slowly and then increasingly quickly based on the switching signal depending on a pressure-related threshold condition.

[0016] Optionally, the exhaust valve arrangement is configured so that air exiting the exhaust valve arrangement can be fed to a vehicle component different from the valve arrangement. This can significantly reduce the emission of pneumatic venting noise, while simultaneously reusing the energy stored in the pneumatic compressed air before or during venting in another process within the vehicle to improve the energy efficiency of the entire vehicle. For example, the vehicle component can be a central air conditioning system of the vehicle, a fuel cell system, and / or a compressor of a fuel cell system. In this case, the compressed air can be fed to another vehicle process during venting in the noise-optimized venting mode to enable more energy-efficient operation of the respective process step.

[0017] Optionally, the exhaust valve arrangement comprises a noise-reducing valve and a quick-venting valve. This allows the exhaust valve arrangement to have two valves, each adapted and / or optimized for a venting mode. The noise-reducing valve can vent particularly quietly and can be switched to the first venting mode. The quick-venting valve can vent particularly quickly and can be switched to the second venting mode. The noise-reducing valve and / or the quick-venting valve can be switched to the hybrid venting mode and can thus be switched simultaneously and / or successively.

[0018] Optionally, the valve assembly includes a housing, and the noise-reducing valve and the quick-venting valve are located within the housing. This allows the outlet valve for quick exhaust and noise-reducing exhaust to be integrated into a single housing. This allows for effective air routing during exhaust and an integrated arrangement of the valve assembly components.

[0019] Optionally, the exhaust valve arrangement comprises a switching device and a switchable exhaust valve, wherein the switching device is configured to switch the exhaust valve to the first venting mode or the second venting mode based on the switching signal. The switching device allows the exhaust valve and thus the exhaust valve arrangement to be switched between the venting modes. The exhaust valve can be switched by changing the air flowing through the exhaust valve. For example, the exhaust valve itself can be switched to multiple exhaust modes and / or a throttle device can be connected upstream and / or downstream of the exhaust valve.

[0020] Optionally, the valve assembly is configured to switch the outlet valve assembly to the quick-venting, second venting mode in a de-energized state. This provides a fallback mode that enables quick venting in the event of a defect that results in a loss of electrical power to the valve assembly.

[0021] According to one aspect of the invention, a pneumatic system for a vehicle, in particular a commercial vehicle, comprising the valve arrangement described above is provided. The valve arrangement may have one or more features described as optional in order to achieve an associated technical effect.

[0022] Optionally, the pneumatic system includes an electropneumatic service brake system, an electropneumatic parking brake system, an electropneumatic air suspension system, and / or an electropneumatic transmission. The valve arrangement can be advantageously used particularly in the electropneumatic service brake system and / or electropneumatic parking brake system. Application in an electropneumatic air suspension system, an electropneumatic transmission automation system, or other electropneumatic systems in the vehicle is also possible.

[0023] Optionally, the pneumatic system includes an electropneumatic service brake system, and the exhaust valve assembly includes one or more ABS valves. The anti-lock braking system (ABS) valve(s) are valves of the service brake system. Operating the ABS valves in the second venting mode may be necessary for safety reasons in a safety-relevant situation, although such a safety-relevant situation rarely occurs, and the exhaust valve assembly may include a noise-reducing valve for non-safety-relevant situations. Alternatively, the ABS valves may be switchable between the first venting mode and the second venting mode.

[0024] Optionally, the pneumatic system includes a silencer, and the ABS valve(s) are configured to vent via the silencer in the first venting mode. This allows for a further reduction in noise emissions.

[0025] According to one aspect of the invention, a vehicle, in particular a commercial vehicle, comprising the pneumatic system described above is provided. The valve arrangement of the pneumatic system may have one or more features described as optional in order to achieve an associated technical effect.

[0026] According to one aspect of the invention, a method for operating a valve arrangement for a pneumatic system of a vehicle, in particular a commercial vehicle, is provided. The method comprises: outputting a switching signal to an outlet valve arrangement of the valve arrangement; and switching the outlet valve arrangement to the outlet valve arrangement based on the switching signal into a noise-reducing, first venting mode or a fast-venting, second venting mode. The method can be implemented such that one or more features as described with reference to the valve arrangement and / or the pneumatic system are implemented in order to achieve an associated technical effect.

[0027] According to one aspect of the invention, a computer program and / or a computer-readable medium is provided. The computer program and / or the computer-readable medium comprise instructions which, when the program or instructions are executed by a computer, cause the computer to perform the method according to the invention and / or steps thereof. Optionally, the computer program and / or the computer-readable medium comprises instructions which, when the program or instructions are executed by a computer, cause the computer to perform the method steps described as advantageous or optional in order to achieve an associated technical effect.

[0028] Further advantages and features of the invention as well as its technical effects emerge from the figures and the description of the preferred embodiments shown in the figures.

[0029] Fig. 1 is a schematic representation of a pneumatic system according to an embodiment of the invention;

[0030] Fig. 2 is a schematic representation of a pneumatic system according to an embodiment of the invention;

[0031] Fig. 3 is a schematic representation of a vehicle, in particular a commercial vehicle, according to an embodiment of the invention; and

[0032] Fig. 4 is a schematic representation of a flow chart of a method according to an embodiment of the invention.

[0033] Figure 1 shows a schematic representation of a pneumatic system 250 according to an embodiment of the invention.

[0034] The pneumatic system 250 is configured for use in a vehicle 200a, in particular a commercial vehicle 200b. For this purpose, the pneumatic system 250 comprises an electropneumatic service brake system 250a (see Figure 3), an electropneumatic parking brake system 250b (see Figure 3), an electropneumatic air suspension system 250c, and / or an electropneumatic transmission 250d.

[0035] The vehicle 200a, in particular the commercial vehicle 200b, is referred to below as vehicle 200a, 200b. Such a vehicle 200a, 200b is shown in Figure 3 and described with reference to Figure 3.

[0036] The pneumatic system 250 according to Figure 1 comprises a valve assembly 100, a compressed air supply 58, and a working volume 50 of an actuator 210 (see Figure 3). The valve assembly 100 comprises an inlet valve 52 that fluidically connects the compressed air supply 58 and the working volume 50. The inlet valve 52 is configured to supply the working volume 50 of the actuator 210 with air from the compressed air supply 58, thus ventilating it.

[0037] The valve assembly 100 includes an exhaust valve assembly 110. The exhaust valve assembly 110 is configured to vent, i.e., release air, from the working volume 50 of the actuator 210 and thus from the pneumatic system 250. Thus, the valve assembly 100 is configured to supply and vent the working volume 50 of the actuator 210.

[0038] The valve arrangement 100 comprises a control unit 120 (see Figure 3) for operating the valve arrangement 110. The outlet valve arrangement 110 is configured to receive a switching signal 125 (see Figure 3) from the control unit 120 and to be operated according to the switching signal 125. For this purpose, the outlet valve arrangement 100 comprises a switching device 102 and an outlet valve 54. The outlet valve 54 is a switchable outlet valve 101. The switching device 102 is configured to switch the switchable outlet valve 101 into a noise-reducing, first venting mode M1 or a fast-venting, second venting mode M2 ​​based on the switching signal 125. The first venting mode M1 is noise-optimized, and the second venting mode M2 ​​is venting-optimized.In this case, it is possible for an additional venting cross-section to be activated upstream and / or downstream of the exhaust valve 101 in the second venting mode M2, and for the venting to be maintained in parallel via a noise-optimized venting section of the exhaust valve 101. The exhaust valve arrangement 110 can be switched to a hybrid venting mode MH using the switching signal 125. The hybrid mode MH is schematically represented by a box with a dashed line overlapping the first venting mode M1 and the second venting mode M2. In the hybrid venting mode MH, the exhaust valve arrangement 110 is switched to the first venting mode M1 and the second venting mode M2.

[0039] The valve arrangement 100 is configured to switch the outlet valve arrangement 110 into the quick-venting, second venting mode M2 ​​in a de-energized state.

[0040] Figure 2 shows a schematic representation of a pneumatic system 250 according to an embodiment of the invention. Figure 2 shows an embodiment of a pneumatic system 250 in which the exhaust valve assembly 110 has alternative features to the embodiment shown in Figure 1. Figure 2 is described with reference to Figure 1, describing differences between the embodiments.

[0041] The exhaust valve arrangement 110 according to Figure 2 comprises two exhaust valves 54, namely a noise-reducing valve 111 and a quick-venting valve 112. The noise-reducing valve 111 can be switched in the first venting mode M1, and the quick-venting valve 112 can be switched in the second venting mode M2. Optionally, the pneumatic system comprises a switching device 102 (not shown in Figure 2), as described with reference to Figure 1, wherein the switching device 102 is configured to switch the noise-reducing valve 111 and / or the quick-venting valve 112. In the first venting mode M1, the quick-venting valve 112 can be deactivated, and venting can take place solely via the noise-reducing valve 111. In the second venting mode M2, the noise-reducing valve 111 can be deactivated and the venting can take place solely via the quick-venting valve 112.Both valves 111, 112 can be switched in the hybrid ventilation mode MH and thus operated simultaneously and / or successively. The valve arrangement 100 has a housing 130, indicated only schematically by a dotted line, and the noise-reducing valve 111 and the quick-venting valve 112 are arranged in the housing 130.

[0042] The exhaust valve arrangement 110 is configured to supply air 105 exiting the exhaust valve arrangement 110 to a vehicle component 260 different from the valve arrangement 100. For this purpose, the quick-venting valve 112 is fluidly connected to the vehicle component 260. When the working volume 50 is vented via the quick-venting valve 112, air 105 exiting the vehicle component 260 can thus be supplied to the vehicle component 260 as a process gas, for example, to operate the vehicle component 260, to support the operation of the vehicle component 260, and / or to increase the efficiency of the vehicle component 260.

[0043] The pneumatic system 250 includes a silencer device 265. The exhaust valve assembly 110 is configured to supply gas escaping from the exhaust valve assembly 110 to the silencer device 265. For this purpose, the noise-reducing valve 111 is fluidly connected to the silencer device 265. When the working volume 50 is vented via the noise-reducing valve 111, the gas escaping is supplied to the silencer device 265 to further reduce noise emissions.

[0044] The vehicle component 260 and / or the silencer device 265 can be similarly pressurized with gas escaping from the switchable outlet valve 101 according to Figure 1.

[0045] Figure 3 shows a schematic representation of a vehicle 200a, in particular a commercial vehicle 200b, according to an embodiment of the invention. The vehicle 200a, 200b comprises the embodiment of the pneumatic system 250 described with reference to Figure 1 as a parking brake system 250b and the embodiment of the pneumatic system 250 described with reference to Figure 2 as a service brake system 250a. Figure 3 is described with reference to Figures 1 and 2. The vehicle 200a, 200b according to Figure 3 is a land vehicle, in particular a towing vehicle and / or a trailer of a multi-unit vehicle 200a, 200b.

[0046] The vehicle 200a, 200b has a brake signal sensor 135. The brake signal sensor 135 can, for example, comprise a brake pedal with a valve base to convert a driver-side braking request into a signal for operating the pneumatic system 250 and / or to convert a braking request transmitted by an automated driving function into a signal for operating the pneumatic system 250.

[0047] The vehicle 200a, 200b includes the service brake system 250a and the parking brake system 250b. The service brake system 250a includes a valve arrangement 100 with a plurality of outlet valve devices 110, in particular one outlet valve device 110 per wheel brake, and two switching devices 102. The parking brake system 250b includes an outlet valve arrangement 110.

[0048] The vehicle 200a, 200b includes a control module 120. The control module 120 is configured to operate the parking brake system 250b and the components of the service brake system 250a and the corresponding exhaust valve assemblies 110 relating to the rear axles of the vehicle 200a, 200b. The control module 120 can therefore also be referred to as a rear axle modulator (RAM). The control module 120 is also configured as a rear switching device 102. The control module 120 is connected to the brake signal transmitter 135 to receive a braking signal corresponding to the braking request.

[0049] The front switching device 102 is configured to operate components of the service brake system 250a relating to the front axle of the vehicle 200a, 200b and the corresponding exhaust valve assemblies 110. The switching device 102 can therefore also be referred to as a front axle modulator (FAM). The front switching device 102 is connected to the brake signal transmitter 135 in order to receive a braking signal corresponding to the braking request. The control unit 120 is configured to output a switching signal 125 for switching the exhaust valve assemblies 110 to the exhaust valve assemblies 110. For this purpose, the control unit 120 is communicatively connected to the switching device 102 of the front axle, the FAM, for example via a vehicle bus 270.

[0050] The exhaust valve assemblies 110 can each be switched into a noise-reducing, first venting mode M1 or a fast-venting, second venting mode M2 ​​based on the switching signal 125. The control unit 120 is configured to output the switching signal 125 taking into account a vehicle state 121, the vehicle speed 122, and / or a driving situation 123. For this purpose, the control unit 120 is connected to the vehicle bus 270 in order to receive and process the vehicle state 121, the vehicle speed 122, the driving situation 123, and / or information relating to these. Bleeding of the service brake system 250a during a stability intervention, such as yaw control, is, for example, a highly critical venting and must take place quickly in the second venting mode M2.Such a stability intervention requires highly dynamic and precise control of the brake pressure or the resulting braking torque. An example of a critical venting in the second venting mode M2 ​​in the electropneumatic parking brake system 250b is emergency braking via the parking brake 250b while driving.

[0051] The exhaust valve arrangement 110 can be switched based on the switching signal 125 depending on a threshold condition 126 relating to a pressure p. For this purpose, the switching devices 102, i.e., the RAM and the FAM, are communicatively connected to the control unit 120 and configured to sense a pressure p relating to the valve arrangement 100 and transmit it to the control unit 120. The exhaust valve arrangement 110 is configured to be switched based on the switching signal 125 above a pressure threshold 127 defining the threshold condition 126 into the first venting mode M1 and / or below the pressure threshold 127 into the second venting mode M2. The service brake system 250a comprises two noise-reducing valves 111, which are illustrated in the schematic drawing of Figure 3 together with the switching devices 102, or the RAM and the FAM.

[0052] The service brake system 250a comprises an outlet valve arrangement 110 which has a plurality of ABS valves 255 as quick-release valves 112.

[0053] Each of the ABS valves 255 is connected to an actuator 210, which is configured as a service brake for actuating the respective actuator 210. Each of the actuators 210 is configured to brake a wheel or a pair of wheels (not indexed) of the vehicle 200a, 200b. The ABS valves 255 are configured to operate in the second venting mode M2 ​​as a fallback.

[0054] The vehicle 200a, 200b comprises two silencer devices 265, and the ABS valves 255 are configured to vent in the first venting mode M1 via the switching device 102 and the silencer device 265.

[0055] The parking brake system 250b has a switchable outlet valve 101. The parking brake system 250b is fluidly connected to one of the silencer devices 265 in order to vent air via the silencer device 265 in the first venting mode M1.

[0056] Figure 4 shows a schematic representation of a flow chart of a method 300 according to an embodiment of the invention. The method 300 is a method 300 for operating a valve arrangement 100 for a pneumatic system 250 of a vehicle 200a, 200b. Such a valve arrangement 100, such a pneumatic system 250, and such a vehicle 200a, 200b are described with reference to Figures 1 to 3. Figure 4 is described with reference to Figures 1 to 3.

[0057] The method 300 comprises: outputting 310 a switching signal 125 to an exhaust valve arrangement 110 of the valve arrangement 100.

[0058] The exhaust valve arrangement 110 is switched 320 to a noise-reducing, first venting mode M1 or a fast-venting, second venting mode M2 ​​based on the switching signal 125.

[0059] Reference symbol

[0060] 50 working volume

[0061] 52 intake valve

[0062] 54 Exhaust valve

[0063] 58 Compressed air supply

[0064] 100 valve arrangement

[0065] 101 switchable exhaust valve

[0066] 102 switching device

[0067] 105 Air

[0068] 110 Exhaust valve arrangement

[0069] 111 noise-reducing valve

[0070] 112 quick-release valve

[0071] 120 control unit

[0072] 121 Vehicle condition

[0073] 122 vehicle speed

[0074] 123 Driving situation

[0075] 125 switching signal

[0076] 126 Threshold condition

[0077] 127 Pressure threshold

[0078] 130 housings

[0079] 135 brake signal sensor

[0080] 200a vehicle

[0081] 200b commercial vehicle

[0082] 210 pneumatic actuator

[0083] 250 pneumatic system

[0084] 250a service brake system

[0085] 250b parking brake system

[0086] 250c air suspension system

[0087] 250d gearbox 255 ABS valve

[0088] 260 vehicle components

[0089] 265 Silencing device

[0090] 270 vehicle bus

[0091] 275 Connecting device

[0092] 300 procedures

[0093] 310 Issues

[0094] 320 Switch

[0095] P pressure

[0096] M1 noise-reducing, first venting mode

[0097] M2 quick-venting, second venting mode

[0098] MH hybrid venting mode

Claims

Patent claims 1. Valve arrangement (100) for a pneumatic system (250) of a vehicle (200a), in particular a commercial vehicle (200b), comprising: - an outlet valve arrangement (110) for venting the pneumatic system (250), - a control device (120) for operating the valve arrangement (110) for venting and venting a pneumatic actuator (210), wherein - the control unit (120) is configured to output a switching signal (125) for switching the exhaust valve arrangement (110) to the exhaust valve arrangement (110), and - the outlet valve arrangement (110) can be switched into a noise-reducing, first venting mode (M1) or a fast-venting, second venting mode (M2) based on the switching signal (125).

2. Valve arrangement (100) according to claim 1, wherein - the control unit (120) is configured to output the switching signal (125) taking into account a vehicle state (121), the vehicle speed (122) and / or a driving situation (123).

3. Valve arrangement (100) according to claim 1 or 2, wherein - the first venting mode (M1) is noise-optimized and / or the second venting mode (M2) is ventilation-optimized.

4. Valve arrangement (100) according to one of the preceding claims, wherein the outlet valve arrangement (110) can be switched into a hybrid venting mode (MH) based on the switching signal (125), wherein the outlet valve arrangement (110) can be switched into the first venting mode (M1) and into the second venting mode (M2) in the hybrid venting mode (MH).

5. Valve arrangement (100) according to one of the preceding claims, wherein the outlet valve arrangement (110) can be switched on the basis of the switching signal (125) as a function of a threshold condition (126) relating to a pressure (p).

6. Valve arrangement (100) according to claim 5, wherein the outlet valve arrangement (110) is configured to, based on the switching signal (125) above a to be switched to the first venting mode (M1) and / or to the second venting mode (M2) below the pressure threshold (127) defining the threshold condition (126).

7. Valve arrangement (100) according to one of the preceding claims, wherein the outlet valve arrangement (110) is configured such that air (105) exiting from the outlet valve arrangement (110) can be supplied to a vehicle component (260) different from the valve arrangement (100).

8. Valve arrangement (100) according to one of the preceding claims, wherein the outlet valve arrangement (110) comprises a noise-reducing valve (111) and a quick-venting valve (112).

9. Valve assembly (100) according to claim 8, wherein the valve assembly (100) comprises a housing (130), and the noise-reducing valve (111) and the quick-venting valve (112) are arranged in the housing (130).

10. Valve arrangement (100) according to one of the preceding claims, wherein the outlet valve arrangement (100) comprises a switching device (102) and a switchable outlet valve (101), wherein the switching device (102) is configured to switch the outlet valve (101) into the first venting mode (M1) or the second venting mode (M2) based on the switching signal (125).

11. Valve arrangement (100) according to one of the preceding claims, wherein the valve arrangement (100) is configured to switch the outlet valve arrangement (110) into the quick-venting, second venting mode (M2) in a de-energized state.

12. Pneumatic system (250) for a vehicle (200a), in particular a commercial vehicle (200b), comprising the valve arrangement (100) according to one of the preceding claims.

13. Pneumatic system (250) according to claim 12, wherein the pneumatic system (250) comprises an electropneumatic service brake system (250a), a electropneumatic parking brake system (250b), an electropneumatic air suspension system (250c) and / or an electropneumatic transmission (250d).

14. Pneumatic system (250) according to claim 12 or 13, wherein the pneumatic system (250) comprises an electro-pneumatic service brake system (250a), and the outlet valve arrangement (110) comprises one or more ABS valves (255).

15. Pneumatic system (250) according to claim 14, wherein the pneumatic system (250) comprises a silencer device (265), and the ABS valve(s) (255) are configured to vent via the silencer device (265) in the first venting mode (M1).

16. Vehicle (200a), in particular commercial vehicle (200b), comprising a pneumatic system (250) according to one of claims 12 to 15.

17. Method (300) for operating a valve arrangement (100) for a pneumatic system (250) of a vehicle (200a), in particular a commercial vehicle (200b), the method (300) comprising: - outputting (310) a switching signal (125) to an outlet valve arrangement (110) of the valve arrangement (100); and - Switching (320) the outlet valve arrangement (110) to the outlet valve arrangement (110) based on the switching signal (125) into a noise-reducing, first venting mode (M1) or a fast-venting, second venting mode (M2).

18. A computer program and / or computer-readable medium comprising instructions which, when the program or instructions are executed by a computer, cause the computer to carry out the method (300) and / or the steps of the method (300) according to claim 17.

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