EP3188945A1 - Druckluftsystem mit modifizerbarer förderrate - Google Patents
Druckluftsystem mit modifizerbarer förderrateInfo
- Publication number
- EP3188945A1 EP3188945A1 EP15759791.5A EP15759791A EP3188945A1 EP 3188945 A1 EP3188945 A1 EP 3188945A1 EP 15759791 A EP15759791 A EP 15759791A EP 3188945 A1 EP3188945 A1 EP 3188945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressed air
- vehicle
- piston pump
- drive device
- sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
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
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
-
- 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
- B60T17/06—Applications or arrangements of reservoirs
Definitions
- the invention relates to a compressed air system of a motorized vehicle, comprising a compressed air reservoir for storing compressed air, a pneumatically connected brake system for Bremskraftbeetzschung a wheel of the vehicle, a piston pump for filling the compressed air reservoir and a piston pump driving at a speed drive device.
- the invention also relates to a method for filling a compressed air reservoir of such a compressed air system.
- the field of application of the invention extends to motorized vehicles in which a brake system is provided, in which a brake pad is driven by compressed air on the brake disc of a wheel is pressed to this
- Such a brake system usually has one
- Piston compressor with which the compressed air is generated Piston compressor with which the compressed air is generated.
- the reciprocating compressor is usually either driven by its own dedicated drive device, or for example via the same engine that drives the vehicle. Since high volume flows may be needed to activate the braking device, which the compressor can not necessarily provide, the compressor is not used for the immediate release of the brakes, but to fill a compressed air reservoir, which then, for example via opening of valves, which in turn electrically or pneumatically operated, which drives brakes.
- a filling of the compressed air reservoir in particular, for example, after braking or after activation of others to the Compressed air system coupled compressed air consumer or even in the case of leaking through a leak compressed air.
- Piston pump then the same speed as the internal combustion engine. However, since the wear of a piston pump depends on the accumulated duration of their operation, or since their life behaves antiproportional to their duration of operation, it is desirable to operate the piston pump only for the shortest possible time.
- the invention includes the technical teaching that at least one sensor is provided for detecting at least one vehicle parameter, according to the amount of which the rotational speed of the drive device can be modified via a control request of a control unit.
- Piston compressor can be increased to the filling of the compressed air reservoir to accelerate.
- the at least one sensor serves, for example, to determine the necessity of filling the compressed air reservoir and also to monitor parameters which limit the maximum usable speed of the piston compressor.
- Piston pump sucked air or as the temperature of the piston pump and / or the drive device lubricating lubricating oil or as the
- Air temperature is formed within the compressed air reservoir.
- the advantage of monitoring the ambient temperature of the vehicle, in particular the air sucked in by the piston pump is, inter alia, that, for example, at temperatures below zero, in which, for example
- Piston pump are used, is that at excessive heating of lubricating oil or coolant, the speed of the reciprocating compressor can be throttled accordingly. Thus, damage caused by overheating damage to the reciprocating compressor or drive device are avoided.
- thermodynamic state variable for example, with simultaneous knowledge of the pressure present therein on the amount of particles or the mass of the air contained therein can be closed.
- a fall below this air mass for example, below a predetermined threshold may be as
- Tripping criterion for activating the piston pump can be used.
- Tire pressure of at least one wheel of the vehicle, or as the air pressure or as the air mass or as the amount of air within the air pressure reservoir or as leakage through the compressed air system escaping air flow is formed.
- the advantage of checking the tire pressure arises in particular
- Vehicles in which this tire can be filled via the compressed air system, for example while driving.
- a drop in the tire pressure may require a filling of the air pressure reservoir, ie an activation or acceleration of the piston pump.
- the verification of the air pressure or the air mass in the compressed air reservoir or the volume flow, which escapes through leakage to the compressed air system can also be used as a criterion to reduce the speed of
- Trigger piston pump or its activation Trigger piston pump or its activation.
- the at least one sensor monitors the activity of at least one compressed air consumer of the compressed air system, such as parking brakes or pneumatic auxiliary systems.
- the ignition key position ie the position of the ignition key in the ignition
- the information is derived whether the vehicle is ready or in operation or Not.
- the current accelerator pedal position and / or the ignition status of the vehicle in question comes into question, which sensor technology or
- the drive device of the piston pump as an internal combustion engine or electric motor or
- hydrodynamic motor and or at least one wheel of the vehicle formed The advantage of this is that an already existing system is used as the drive device, which is also controlled in its speed.
- the piston pump is connected to a power take-off. This allows a coupling of the piston pump in parallel to the actual, primary, appropriate use of the drive.
- a secondary drive may be formed, for example, as protruding from the housing of the drive shaft.
- Piston pump are also driven when the vehicle transmission is decoupled from the drive motor.
- Control request is designed as a gear shift request and / or speed change request to the drive device.
- the advantage in particular to see that, for example, while driving by simultaneously increasing the speed of the drive device and simultaneous downshifting of inlaid gear or caused for example by a transmission
- Translation of the speed of the drive to a speed of a wheel can be achieved that at constant speed of the vehicle, an increase in the speed of the piston pump can be achieved.
- a method relating to the invention provides the measurement of one for the
- FIG. 1 shows a representation of a compressed air system according to the invention as a block diagram.
- the compressed air system 1 of a motorized vehicle not shown here comprises a compressed air reservoir 2 filled with compressed air 3, which is pneumatically connected to a brake system 4.
- This brake system 4 consists essentially of a pneumatically actuated actuator, the on a
- Brake request pushes a brake pad against the brake disc, not shown here, a wheel 5 of the vehicle.
- a piston pump 6 is pneumatically connected, which compresses sucked ambient air of the vehicle and pumps into the compressed air reservoir 2.
- the volume flow of the sucked or pumped into the compressed air reservoir 2 air depends directly on the speed of the piston pump 6.
- a higher speed in particular causes a shorter duration, via which the piston pump 6 must be actuated in order to fill up the compressed air reservoir 2.
- the piston pump 6 is for driving or power supply to the
- the speed of the piston pump 6 is always equal to the speed of the drive device 7.
- Speed of the internal combustion engine are increased when idling to reduce the filling time of the compressed air reservoir 2.
- speed of the drive device 7 while driving, and at the same time to keep the speed of the wheel 5, ie indirectly above the speed of the vehicle, constant by means of a gear not shown here.
- the drive device 7 is driven by a control unit 10, which communicates with a sensor 8, which monitors, for example, the temperature of the lubricating oil lubricating the internal combustion engine and the piston pump 6. When a critical temperature is exceeded, the speed of the piston pump 6 is lowered by reducing the speed of the drive device 7.
- the sensor is not limited to the preferred embodiment described above. On the contrary, modifications are also conceivable, which are included in the scope of protection of the following claims.
- the sensor it is also possible for the sensor to monitor thermodynamic state variables of the compressed air in the compressed air reservoir or to provide a plurality of sensors which monitor various of the parameters named in the claims in order to determine the rotational speed of the sensor in accordance with an evaluation of the measured values carried out in the control unit Drive device and thus to regulate the piston pump.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014112783.8A DE102014112783A1 (de) | 2014-09-04 | 2014-09-04 | Druckluftsystem mit modifizierbarer Förderrate |
PCT/EP2015/070292 WO2016034723A1 (de) | 2014-09-04 | 2015-09-04 | Druckluftsystem mit modifizerbarer förderrate |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3188945A1 true EP3188945A1 (de) | 2017-07-12 |
Family
ID=54064348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15759791.5A Withdrawn EP3188945A1 (de) | 2014-09-04 | 2015-09-04 | Druckluftsystem mit modifizerbarer förderrate |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3188945A1 (de) |
CN (1) | CN106794831B (de) |
DE (1) | DE102014112783A1 (de) |
WO (1) | WO2016034723A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220325714A1 (en) * | 2019-09-30 | 2022-10-13 | Volvo Truck Corporation | Method for controlling the rotational speed of an electric motor driven compressor and control unit adapted to perform the method |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19928249B4 (de) * | 1999-06-21 | 2009-05-07 | Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg | Einrichtung zur Steuerung wenigstens eines hydraulischen Antriebsaggregats |
DE10215392B4 (de) * | 2001-10-05 | 2014-12-18 | Robert Bosch Gmbh | Verfahren zur Ansteuerung einer Speicherladepumpe in einer elektrohydraulischen Bremsanlage eines Fahrzeugs und elektrohydraulische Bremsanlage |
DE10258889A1 (de) * | 2002-12-17 | 2004-07-01 | Daimlerchrysler Ag | Druckluftanlage für motorgetriebene Kraftfahrzeuge |
DE102004061761A1 (de) * | 2004-12-22 | 2006-07-06 | Wabco Gmbh & Co.Ohg | Druckmittelanlage |
US20080173033A1 (en) * | 2007-01-19 | 2008-07-24 | Bendix Commercial Vehicle Systems Llc | Variable torque transmitter |
DE102008005428A1 (de) * | 2008-01-22 | 2009-07-23 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Kompressor und Verfahren zur Steuerung eines Kompressors zur Druckluftversorgung eines Nutzfahrzeugs |
DE102008006860A1 (de) * | 2008-01-31 | 2009-08-06 | Haldex Brake Products Gmbh | Kraftfahrzeug mit einer von einem Kompressor versorgten Druckluftanlage und Verfahren zur Steuerung des Luftstroms in einer Druckluftanlage |
US8260494B2 (en) * | 2008-04-02 | 2012-09-04 | International Truck Intellectual Property Company, Llc | Method and apparatus to optimize energy efficiency of air compressor in vehicle air brake application |
DE102009008351A1 (de) * | 2009-02-11 | 2010-08-19 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Druckluftversorgungssystem für Lastkraftwagenanhänger und Druckluftversorgungsverfahren |
CN102407841A (zh) * | 2010-09-21 | 2012-04-11 | 陈言平 | 重型卡车的高压气制动系统 |
DE102011119649A1 (de) * | 2011-11-29 | 2013-05-29 | Wabco Gmbh | Kompressorsystem für eine Druckluftversorgungsanlage |
DE102012203155A1 (de) * | 2012-02-29 | 2013-08-29 | Franz Xaver Meiller Fahrzeug- Und Maschinenfabrik - Gmbh & Co Kg | Nutzfahrzeugaufbau und ein damit ausgerüstetes Nutzfahrzeug |
DE102012009186A1 (de) * | 2012-05-10 | 2013-11-14 | Wabco Gmbh | Verfahren zum Betrieb einer Druckluftbremsanlage |
EP2708429B1 (de) * | 2012-09-12 | 2015-08-26 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Druckluftsystem für ein Motorfahrzeug |
ES2598238T3 (es) * | 2012-11-27 | 2017-01-26 | Iveco S.P.A. | Método para la gestión de un compresor de vehículo |
-
2014
- 2014-09-04 DE DE102014112783.8A patent/DE102014112783A1/de not_active Ceased
-
2015
- 2015-09-04 WO PCT/EP2015/070292 patent/WO2016034723A1/de active Application Filing
- 2015-09-04 CN CN201580054314.2A patent/CN106794831B/zh not_active Expired - Fee Related
- 2015-09-04 EP EP15759791.5A patent/EP3188945A1/de not_active Withdrawn
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2016034723A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN106794831A (zh) | 2017-05-31 |
WO2016034723A1 (de) | 2016-03-10 |
CN106794831B (zh) | 2019-05-14 |
DE102014112783A1 (de) | 2016-03-10 |
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