WO2014170299A2 - Système pneumatique - Google Patents

Système pneumatique Download PDF

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Publication number
WO2014170299A2
WO2014170299A2 PCT/EP2014/057571 EP2014057571W WO2014170299A2 WO 2014170299 A2 WO2014170299 A2 WO 2014170299A2 EP 2014057571 W EP2014057571 W EP 2014057571W WO 2014170299 A2 WO2014170299 A2 WO 2014170299A2
Authority
WO
WIPO (PCT)
Prior art keywords
valve
compressed air
parking brake
line
brake system
Prior art date
Application number
PCT/EP2014/057571
Other languages
German (de)
English (en)
Other versions
WO2014170299A3 (fr
Inventor
Karsten Schnittger
Original Assignee
Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knorr-Bremse Systeme für Nutzfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Publication of WO2014170299A2 publication Critical patent/WO2014170299A2/fr
Publication of WO2014170299A3 publication Critical patent/WO2014170299A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor

Definitions

  • the invention relates to a pneumatic system for vehicles, in particular for commercial vehicles, with an electric air treatment system and an electric parking brake system.
  • Pneumatic systems such as a utility vehicle, typically include a parking brake system for immobilizing the vehicle while an air conditioning system is used to clean air contaminated with moisture, oil, and other contaminants.
  • electrically controllable solenoid valves are used, which can forward the applied compressed air via their switching states or separate their downstream systems from the applied compressed air source and / or can connect to a vent.
  • the solenoid valves are often designed as 2/2-way valves having a compressed air inlet and a compressed air outlet and can be switched between a blocking position and a passage position. It may also be provided that the solenoid valves are 3/2-way valves, wherein the solenoid valves in the separate position from the compressed air source position can connect the downstream system components with a venting device.
  • the following system components are vented, that is, there is no compressed air, but only air at ambient pressure.
  • the following components of the compressed air systems are, for example, pneumatic valves whose switching positions are controlled by an applied compressed air, or select-high valves or select-low valves, each having two applied compressed air lines, wherein the compressed air is passed, the pressure higher or is lower.
  • the air treatment plant which comprises the components assigned to the air treatment, is a central subsystem of the pneumatic system, in particular of utility vehicles, in which oil and water-containing air is filtered and cleaned.
  • the of A compressor-derived compressed air is allocated under pressure and in the correct order of filling the various brake circuits and other compressed air consumers in the commercial vehicle. In the event of a defect, the individual consumer groups are protected against each other.
  • two electrically controllable valves may be utilized to expand a defined amount of dry reservoir pressurized air through a desiccant cartridge to ambient pressure, thereby removing moisture and contaminants from the desiccant cartridge.
  • a drain valve can be opened by the solenoid valves, so that the moist air can be discharged from the air treatment plant to the environment.
  • the solenoid valves control a power saving system of the compressor supplying the pneumatic system with compressed air. When compressed air is applied to the energy-saving system of the compressor, the compressor output is greatly reduced.
  • Air treatment plants are known for example from DE 20 201 1 012 031 A1, wherein a first designed as a solenoid valve controllable valve and a second also designed as a solenoid valve controllable valve control the regeneration of a desiccant cartridge.
  • the regeneration and venting of the polluted air takes place via a pneumatically actuated drain valve and a vent line.
  • Solenoid valves and pneumatically controlled valves are also used in the electric parking brake system.
  • the solenoid valves and pneumatic valves are used to ventilate and bleed a spring accumulator of the parking brake system and to ventilate and bleed control cables for a trailer control module.
  • the trailer control module pneumatically actuates a brake of the trailer.
  • the electric parking brake system has to meet the requirements for the test function known as trailer test function.
  • trailer test function is checked before parking by the driver of the commercial vehicle, if a team of commercial vehicle and trailer can be parked on a slope, even if only the parking brake of the utility vehicle is activated and not a brake of the trailer.
  • the brake of the trailer is released by supplying the control line of the trailer control module with compressed air. If the team does not move, it can be parked on the slope.
  • a central component of the electric parking brake system is a bistable element, for example, a 3/2-way valve, which maintains the current position even without applied electrical power.
  • the bistable element locks the compressed air supply of the following components in a parking position and vents them.
  • spring accumulators can apply a braking force.
  • the compressed air supply of the following components is activated so that they are supplied with compressed air; the electric parking brake system releases or remains released.
  • the invention is based on the generic pneumatic system in that the pneumatic system has a controllable valve, by the control functions of the air treatment system and functions of the parking brake system can be realized.
  • the pneumatic system has a controllable valve, by the control functions of the air treatment system and functions of the parking brake system can be realized.
  • the switching of the controllable valve must not lead to critical, ie dangerous conditions of the air conditioning system or the parking brake system.
  • the controllable valve is arranged in a housing of the air treatment plant. It may be an embodiment of the invention that the controllable valve is arranged in a housing of the parking brake system.
  • controllable valve has its own housing and is arranged outside the parking brake system and the air treatment plant. It may be a further embodiment of the invention that the controllable valve is a 2/2-way valve. It can be advantageously provided that the electrically controllable valve is a 3/2-way valve. It can be provided in particular that the valve is connected to a vent line for venting downstream, further described below components. It can be provided that the controllable valve can be switched by an electrical control unit. The valve but can also be designed such that the controllable valve can be switched pneumatically. It can be provided that the controllable valve is an electrically controllable valve biased by a spring element, that the controllable valve is connected upstream of a select high valve or that the electrically controllable valve is connected upstream of a select low valve.
  • controllable valve is connected upstream of at least one first component of the air treatment plant and a second component of the parking brake system. It can be provided that the controllable valve is connected directly upstream of the first component, wherein immediate present means that no further components are arranged between the electrically controllable valve and the first component. It may also be provided that the controllable valve is connected directly upstream of the second component, wherein no further components are arranged between the controllable valve and the second component.
  • the parking brake system comprises at least one trailer control module.
  • the invention may be designed such that the controllable valve is an electrically controllable valve.
  • controllable valve is a solenoid valve. Solenoid valves are suitable as a common controllable valve due to their easy controllability.
  • the invention may further provide that the controllable valve is connected upstream of a control line of the parking brake system. It can be provided in particular that the control line is connected to the second component. It may alternatively be provided that the second component is a relay valve.
  • the controllable valve can advantageously control a compressed air flow to spring brake cylinders of the parking brake system, so that the parking brake system can build or break down a braking force.
  • the electrically controllable valve spring brake cylinders of the parking brake system is connected upstream.
  • the electrically controllable valve can advantageously control a parking position and a driving position of the parking brake system.
  • the controllable valve of a desiccant cartridge is connected upstream of the air treatment plant, so that advantageously a regeneration function of the air treatment plant can be realized by the control of the controllable valve.
  • upstream should be understood to mean that compressed air from the consumer circuits passes through the controllable valve to the desiccant cartridge during regeneration in order to then flow through the latter and then leave the air treatment system.
  • the invention can also be designed such that the electrically controllable valve is connected upstream of an energy saving system of the air treatment plant.
  • an energy-saving function of the compressor can advantageously be realized by the control of the controllable valve, whereby a simple control of the energy-saving system takes place.
  • the invention can also be further developed in that the air treatment system and the parking brake system have a further common controllable valve. It can be provided that the two controllable valves, the controllable valve and the further controllable valve, are arranged in the air treatment plant. It can be provided that both controllable valves are arranged in a housing of the air treatment plant.
  • the two controllable valve, the controllable valve and the further controllable valve are arranged in the parking brake system.
  • the pneumatic system can also be designed such that both controllable valves are arranged in a housing of the parking brake system.
  • the invention may have the feature that one of the two electrically controllable valves is arranged in the air treatment plant and the other of the two electrically controllable valves is arranged in the parking brake system.
  • the further controllable valve is arranged between the air treatment system and the parking brake system.
  • the further common controllable valve has its own housing. The housing of the further controllable valve may be spatially separated from the air treatment system and / or the parking brake system.
  • Figure 1 is a schematic view of a first embodiment of a pneumatic system according to the invention.
  • Figure 2 is a schematic view of a second embodiment
  • Figure 3 is a schematic view of a third embodiment of a pneumatic system according to the invention.
  • FIG. 1 schematically shows the first embodiment of the pneumatic system 10 according to the invention, wherein, inter alia, an air treatment plant 30 is shown.
  • the air treatment system 30 has two electrically controllable solenoid valves 40 ', 40 ", wherein in the first embodiment it is provided that a parking brake system 50' or components thereof are connected downstream of a solenoid valve designated as a regeneration valve 40 ' illustrated alternative or complementary embodiment of the first embodiment in which the parking brake system 50 'is connected downstream of a further solenoid valve designated as a control valve 40 ".
  • the possible alternative or additional embodiment is shown in FIG. 1 in a dashed box.
  • the air treatment system 30 is in an air treatment position, so that the pneumatic consumer circuits of the commercial vehicle can be supplied with purified compressed air of the compressor.
  • the two solenoid valves 40 ', 40 " are each biased by a spring element into the venting position and can be switched by an electrical control signal of a control device 90 in their respective passage position.
  • the air conditioning system 30 is supplied with compressed air from a compressor during the execution of the air treatment function via the compressed air supply 31, wherein the branching compressed air line 37 'with a desiccant cartridge 35' and a drain valve 38 is connected.
  • the Compressed air consumer circles facing side of the desiccant cartridge 35 ' is a consumer-side compressed air line 46 is provided, via this consumer-side compressed air line 46, the compressed air consumers (not shown) of the commercial vehicle are supplied with purified compressed air.
  • From this consumer-side compressed air line 46 branches off from another compressed air line 34, which has a first check valve 33, wherein from the compressed air line 46 behind a second check valve 39, a further compressed air line 43 to the regeneration valve 40 'branches off.
  • the first check valve 33 blocks the compressed air flowing from the desiccant cartridge 35 'while the second check valve 39 lets the compressed air coming from the desiccant cartridge 35' pass through to the regeneration valve 40 'and the compressed air consumer circuits of the commercial vehicle.
  • the regeneration valve 40 ' is shown in a second shift position 42', a bleed position, with a subsequent compressed air line vented to ambient pressure through a bleed line 32 of the regeneration valve 40 '.
  • the line section 37 connected to the regeneration valve 40 ' branches downstream into a first supply line 36 for the electric parking brake system 50' having a compressed air line connection 49 and the further compressed air line 34 leading to the desiccant cartridge 35 'with the first check valve 33.
  • the drain valve 38 is shown in Figure 1 in a first switching position 38a, in a locked position.
  • the drain valve 38 is biased by a spring element 38d in the locked position.
  • the drain valve 38 is connected on the output side to a vent line 38c.
  • a bleed position by venting a pneumatic control input 38e of the bleed valve 38, the compressed air line 37 'leading to the desiccant cartridge 35' is vented via the bleed line 38c.
  • the control valve 40 "is supplied with compressed air on the input side by a compressed air line 47.
  • This compressed air can originate from reservoirs of the compressed air consumer or the compressor
  • the present control valve 40" is shown in the second switching position 42 ", a venting position to the control input 38e of the discharge valve 38 on the one hand and to an energy saving system 35 "on the other hand leading pneumatic control line 45 is connected to the output side of the control valve 40" If the control valve 40 "is switched to the first switching position 41", a passage position, the discharge valve 38 and the energy-saving system 35 "are actuated with compressed air. If the Energy Saving System 35 "is controlled with compressed air, it reduces the performance of the compressor.
  • the parking brake system 50 ' may be connected downstream of the further solenoid valve or the control valve 40 ", wherein a second supply line 36' to the parking brake system 50 'can be arranged on the control line 46
  • the supply lines 36, 36' provide vented or vented through their respective upstream solenoid valves 40 ', 40 ", for example, the parking brake system 50 shown in Figure 2 depending on the switching position with reservoir pressure, ambient pressure or an intermediate pressure.
  • differently configured parking brake systems can also be connected to the air treatment system 30 shown in FIG. 1 by means of the supply lines 36, 36 '.
  • the air conditioning system 30 operates to perform a regeneration function as follows.
  • the regeneration valve 40 ' is electrically controlled by the control device 90 and switched to the passage position 41', whereby a backflow of compressed air into the desiccant cartridge 35 'can take place.
  • the control valve 40 is actuated by the control device 90 and switched into the passage position to open the drain valve 38.
  • a pressure switching the drain valve 38 into the passage position is applied to the control inlet 38e of the drain valve 38, so that the compressed-air line 37 '.
  • the compressed air applied to the regeneration valve 40 'can flow off via the vent line 38c
  • the electric parking brake system 50 'connected to the first supply line 36 is also actuated with compressed air, and it is understood that venting through the discharge valve 38 is intentional, so that it is advantageous at the same time the parking brake system 50 'are controlled by compressed air and a regeneration of the desiccant cartridge can be done.
  • Functions of both the air treatment plant 30 and functions of the parking brake system 50 can be realized by controlling the air conditioning system 30, in particular by selectively controlling the control valve 40 ", the supply line 36 can be gradually vented or vented, so that the electric parking brake system 50 'A gradual pressure can be provided.
  • the energy-saving system 35 is controlled electrically or pneumatically, for example by venting via a vent line (not shown) to the regeneration valve 40 'so that its state does not affect the function of the compressor.
  • FIG. 2 shows a schematic view of a second exemplary embodiment of a pneumatic system 10, the system 10 comprising an electric air treatment system 30 'and an electric parking brake system 50. Only a few components 31, 35, 40 of the air treatment plant are shown by way of example for a better overview.
  • the pneumatic system 10 is controlled by an electric control device, such as the control device 90 shown in FIG.
  • the air treatment system 30 'shown in FIG. 2 may be, for example, the air treatment system 30 shown in FIG.
  • the air treatment plant 30 has a first solenoid valve 40 and components 29 arranged on the consumer side with respect to the solenoid valve 40. Further components 35, in particular a desiccant cartridge to be regenerated, are arranged on the supply side of the solenoid valve 40.
  • the first solenoid valve 40 has an electrical connection for electrical control, wherein the first solenoid valve 40 is a 3/2-way valve with a first switching position 41 and a second switching position 42.
  • solenoid valve 40 For the operation of the solenoid valve 40 can be made to the embodiments in Fig. 1 to solenoid valve 40 '.
  • the first solenoid valve 40 is connected downstream of a configured as a first select high valve 51 component of the parking brake system 50.
  • the first solenoid valve 40 and the first select-high valve 51 are connected to each other via a compressed air line designated as first supply line 36, wherein the first supply line 36 and leading to the components 35 compressed air line 34 has a common line section 37, connected to the output of the first Solenoid valve 40 is connected.
  • the supply line 36 may also be referred to as a control line for the parking brake system 50.
  • Compressed air flowing through the first solenoid valve 40 acts directly on the components 35 and the select high valve 51.
  • the first solenoid valve 40 at least one component 35 of the air treatment system 30 'and a component 51 of the parking brake system 50 is connected downstream.
  • the parking brake system 50 is supplied via a check valve 52 with compressed air.
  • the check valve 52 is a second solenoid valve 53 and a relay valve 54 immediately downstream, the second solenoid valve 53 is connected to the check valve 52 by a compressed air line 55 and wherein the relay valve 54 is connected by a further compressed air line 56 to the check valve 52.
  • the two compressed air lines 55 and 56 have a common line section 57, which is directly connected to an output of the check valve 52.
  • the second solenoid valve 53 is an electrically controllable 2/2-way valve having two switching positions 53 a, 53 b, wherein a first switching position 53 a behind the second solenoid valve 53 lying components 58, 59, 71 separated from the compressed air supply 52, while the second solenoid valve 53 in a second switching position 53b is switched to fürse.
  • the second solenoid valve 53 is biased by a spring and connected in a de-energized state in the second switching position 53b to Mandarinläse. When the solenoid valve is energized, the second solenoid valve 53 moves into the first switching position 53a and blocks the supply of compressed air to the components 58, 59, 71 located behind the second solenoid valve 53.
  • the relay valve 54 is pneumatically controllable, wherein the control is based on a pneumatic circuit logic of the other valves of the parking brake system.
  • the extent to which the relay valve 54 allows the supply pressure of the compressed-air supply 52 to be applied on the input side depends on the pressure referred to as the control pressure at a pneumatic control input 54b of the relay valve.
  • This control pressure is supplied to the relay valve 54 by compressed air from the second select high valve 68.
  • the relay valve 54 vented without applied control pressure at the control input 54b via a vent line 54a located behind the relay valve 54 parking brake system components. These include the spring brake cylinders 60, 61 which are connected via a compressed air line 62 to the relay valve 54. In the vented state, the springs of the spring brake cylinders 60, 61 are tensioned, so that a braking effect occurs.
  • the second solenoid valve 53 of the parking brake system 50 is followed by a bistable valve 58, a third solenoid valve 59 and an output for a first trailer control module 71 controlling a trailer brake system 70.
  • the bistable valve 58 is a 3/2-way valve, wherein the bistable valve 58 has a first switching position 58 a, in which a passage of the compressed air is possible, and wherein the bistable valve 58 has a second switching position 58 b, in which the compressed air supply is disconnected ,
  • the following components are connected to a vent line 58c and are vented through this vent line 58c.
  • the bistable valve 58 is controlled by its own motor drive 58d, wherein the bistability of the bistable valve 58 can be realized, for example, by a slide arranged in a housing of the bistable valve 58 and displaceable by the motor drive 58d. Control of the motor drive 58d of the bistable valve 58 may be performed by the controller 90 of the parking brake system 50 and the pneumatic system 10, respectively.
  • the bistable valve 58 is connected to the second solenoid valve 53 via a compressed air line 63.
  • the third solenoid valve 59 a 2/2-way valve, has a first switching position 59a, in which it is switched to Mandarin fürse, and a second switching position 59b, in which the third solenoid valve 59 is switched to a blocking position.
  • the solenoid valve 59 is electrically actuated by the control device and is biased and held by a biasing force of a spring element 59c in the second switching position 59b in a blocking the passage position. Only when the third solenoid valve 59 is energized, the third solenoid valve 59 switches to Mandarin.
  • the third solenoid valve 59 is connected to the second solenoid valve 53 connected via a compressed air line 64, wherein the compressed air line 64 and leading to the bistable valve 58 compressed air line 63 have a common line section 65.
  • a vent line 66 Downstream of the third solenoid valve 59 is a vent line 66, so that the electric control of the third solenoid valve 59, the via a further compressed air line 67 also connected to the compressed air lines 64, 65 trailer control module 71 can be vented.
  • the parking brake Downstream of the bistable valve 58 are the first select high valve 51 and a second select high valve 68, wherein an output of the first select high valve 51 an output for a second trailer control module 72 with a higher of the two applied pressures of the bistable valve 58 and the first solenoid valve 40 supplied.
  • the parking brake provides two trailer control module 71, 72 outputs. In the concrete case of application, however, only one is used.
  • the second select high valve 68 is supplied at a first input from the bistable valve 58 and at a second input from a pneumatic control line 81 with compressed air, so that the second select high valve 68, the relay valve 54 with compressed air with the higher Pressure from the bistable valve 58 and the control line 81 pneumatically actuates.
  • the control line 81 can be supplied with compressed air from another system 80.
  • the first select high valve 51 and the second select high valve 68 are connected via a common compressed air line 69 to the bistable valve 58 on the output side.
  • the described second embodiment of the pneumatic system 10 operates as follows, wherein the parking brake system 10 performs different functions, namely a parking function, a transition function to the parking function, the trailer test function, a transition function to a driving function, a driving function and a gradual filling and venting the parking brake system for applying a gradual braking force.
  • the spring brake cylinders 60, 61 To perform the parking function, ie to tension the parking brake, the spring brake cylinders 60, 61 must be vented. For this purpose, the control input 54b of the relay valve 54 must be vented. This happens when the second select-high valve 68 passes an ambient pressure, which in turn can only take place when both inputs of the second select-high valve 68 are supplied with compressed air at ambient pressure. For the sake of simplicity, it is assumed below that at the pneumatic control line 81 is always ambient pressure. This does not have to be the case. So that ambient pressure is present, the line sections must be vented before the second select-high valve 68.
  • either the third solenoid valve 59 can be moved in the venting position 59b and the bistable valve 58 can be switched to Mandarin, or the bistable valve 58 is connected in the venting position 58b. Since the system during the execution of the parking function but should be safely switched, and the third solenoid valve 59 must be energized to be moved to the venting position 59a, the latter switching position of the valves 58, 59 is considered here.
  • the first select-high valve 51 is vented at a first input, which in turn means that the first solenoid valve 40 determines the output pressure of the first select-high valve 51 by applying a pressure.
  • the trailer In the parking position, the trailer should also be set, for which purpose ambient pressure has to be present at the second trailer control module 72. This is the case when the first solenoid valve 40 is located in the bleed position with the solenoid valve 40 biased to the bleed position. An energization of the solenoid valve 40 is therefore not necessary and not desirable. In particular, the first solenoid valve 40 does not have to ventilate or pneumatically control any further components in the parking position.
  • the first solenoid valve 40 has to be switched to blower, so that the higher input side pressure at the first select high valve 51 is passed to the trailer control module 72. Since pressurization of the inverting input of the trailer control module 72, the trailer brake is vented and thus solved, the team is braked in this situation alone by the towing vehicle.
  • the trailer test function can therefore be carried out in particular because regeneration or ventilation of the air treatment system at standstill is not necessary.
  • FIG. 3 shows a schematic view of a third embodiment of a pneumatic system according to the invention.
  • a select-low valve 95 is provided between the first solenoid valve 40 and the select-high valve 51.
  • the first solenoid valve 40 is a regeneration valve, regeneration can also take place in the standstill in this embodiment. Namely, if the third solenoid valve 59 vented, so can the switched third solenoid valve 40, the regeneration valve, given to the select-low valve 95 pressure is not passed through the select high valve 51 to the control input 54b of the relay valve 54.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

L'invention concerne un système pneumatique pour des véhicules (10), notamment pour des véhicules utilitaires, comprenant un système de traitement d'air électrique (20) et un système de frein de stationnement électrique (30). L'objectif de l'invention est de créer un système pneumatique qui soit moins encombrant et/ou plus économique que les systèmes connus. Cet objectif est atteint au moyen d'un système pneumatique (10) caractérisé en ce qu'il présente une soupape (40) pouvant être commandée de façon à permettre de réaliser des fonctions du système de traitement d'air (20) et des fonctions du système de frein de stationnement (30).
PCT/EP2014/057571 2013-04-19 2014-04-15 Système pneumatique WO2014170299A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013006860.6 2013-04-19
DE102013006860.6A DE102013006860A1 (de) 2013-04-19 2013-04-19 Pneumatisches System

Publications (2)

Publication Number Publication Date
WO2014170299A2 true WO2014170299A2 (fr) 2014-10-23
WO2014170299A3 WO2014170299A3 (fr) 2015-05-28

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WO (1) WO2014170299A2 (fr)

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DE102015106146A1 (de) * 2015-04-22 2016-10-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Parkbremseinrichtung für Kraftfahrzeuge
DE102015106150A1 (de) 2015-04-22 2016-10-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Parkbremseinrichtung für Kraftfahrzeuge
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DE102016117784A1 (de) 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Parkbremseinrichtung für ein Nutzfahrzeug
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DE102016117837A1 (de) 2016-09-21 2018-03-22 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Luftaufbereitungseinheit für eine Bremsanlage eines Nutzfahrzeugs, Bremsanlage und Verfahren zum Betreiben einer Luftaufbereitungseinheit

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