EP4489986A1 - Verfahren zum steuern einer elektrodynamischen bremsvorrichtung eines schienenfahrzeugs - Google Patents
Verfahren zum steuern einer elektrodynamischen bremsvorrichtung eines schienenfahrzeugsInfo
- Publication number
- EP4489986A1 EP4489986A1 EP23717122.8A EP23717122A EP4489986A1 EP 4489986 A1 EP4489986 A1 EP 4489986A1 EP 23717122 A EP23717122 A EP 23717122A EP 4489986 A1 EP4489986 A1 EP 4489986A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- braking
- control device
- rail vehicle
- braking torque
- power semiconductor
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0076—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
-
- 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
- B60T13/58—Combined or convertible systems
- B60T13/585—Combined or convertible systems comprising friction brakes and retarders
- B60T13/586—Combined or convertible systems comprising friction brakes and retarders the retarders being of the electric type
-
- 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
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch-blocks, skids, or like track-engaging shoes
- B61H7/04—Scotch-blocks, skids, or like track-engaging shoes attached to railway vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H7/00—Brakes with braking members co-operating with the track
- B61H7/02—Scotch-blocks, skids, or like track-engaging shoes
- B61H7/04—Scotch-blocks, skids, or like track-engaging shoes attached to railway vehicles
- B61H7/06—Skids
- B61H7/08—Skids electromagnetically operated
- B61H7/083—Skids electromagnetically operated working with eddy currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/10—Electrical machine types
- B60L2220/14—Synchronous machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
Definitions
- the invention relates to a method for controlling an electrodynamic braking device of a rail vehicle, a drive system of a rail vehicle with such an electrodynamic braking device and a rail vehicle.
- Electrically driven rail vehicles are preferably braked during a braking process using electrodynamic braking devices, as these can advantageously be operated with virtually no wear compared to friction brakes and there is also the possibility of transferring electrical energy generated during the braking process into the system electrical supply network, for example an overhead line or a so-called third rail, which provides the electrical energy required for the drive.
- the use of the electrodynamic braking device is still limited to service braking, while in the case of rapid braking, also known as emergency braking or emergency braking, additional friction braking devices are used for the safety of passengers in the rail vehicle and third parties outside the rail vehicle initiate a braking process with maximum braking torque.
- the use of friction brake devices compared to the otherwise used electrodynamic brake devices is due to the previously higher failure safety of the friction brake devices.
- the disadvantage is that it is necessary to equip rail vehicles with both electrodynamic braking devices and friction braking devices that ensure safe braking Allow rapid braking from the maximum speed of the rail vehicle, which leads to high technical complexity, additional weight and, in particular, high costs for production and operation, especially in high-speed trains.
- the object of the invention is therefore to provide a method and an electrodynamic braking device which ensure a sufficiently high level of failure safety of the electrodynamic braking device, particularly during rapid braking.
- a first aspect of the invention relates to a method for controlling an electrodynamic braking device of a rail vehicle, wherein the electrodynamic braking device of the rail vehicle has at least one electric drive motor, a power converter electrically connected thereto with a plurality of power semiconductor switches, and a control device which controls the plurality of power semiconductor switches as parts of a Drive system of the rail vehicle includes.
- the method according to the invention is characterized in that during rapid braking to generate a target braking torque, the power semiconductor switches of the power converter are controlled according to a first control algorithm of the control device, the first control algorithm comprising functions of both driving and braking of the drive system during the braking process I st braking torque generated by the electrodynamic braking device is determined and compared with the target braking torque, and depending on the comparison, the power semiconductor switches of the power converter by means of a second control algorithm of the control device are controlled, with the second control algorithm exclusively comprising braking functions.
- the failure safety of the electrodynamic braking device of a rail vehicle is advantageously increased in that a different, second control algorithm serves as a fallback level for controlling the power semiconductor switches of the power converter, which has a lower complexity or has a smaller range of functions.
- proof of sufficiently high failure safety can be provided in a simpler manner.
- Advantageous compared to the solution described in the introduction according to the disclosure document DE 10 2012 203 132 A1 is also no redundant or. Even diverse-redundant control device is required, whereby the complexity of the braking device and the costs are advantageously reduced compared to this known solution.
- the smaller range of functions of the second control algorithm is achieved in that it only uses functions that are related to the generation of a braking torque or with the generation of a maximum braking torque when rapid braking is requested.
- the second control algorithm does not use active pointers of pulse width modulation, by means of which the drive motor designed as a three-phase machine is controlled. This means that, for example, feeding back into the supply network, generating a small braking torque, as is particularly advantageous at low speeds, quickly varying the braking torque, as is particularly advantageous for anti-skid protection, and generating a drive torque is not possible .
- the second control algorithm only serves as a fallback level for the electrodynamic braking device in the rare case of an error During rapid braking, the required actual braking torque cannot be generated using the first control algorithm. Conversely, this means that, as a rule, the full range of functions of the first control algorithm can also be used advantageously when rapid braking is requested. These functions enable, for example, a high dynamic of the braking torque generated, whereby in particular anti-skid and braking up to a low speed can be achieved, and feedback into the supply network, provided that the drive system is connected to it and this can absorb the generated electrical energy .
- the I st braking torque generated by the electrodynamic braking device during a braking process corresponds to the braking force that can be transferred from the drive motor to a wheelset connected to it mechanically, usually via a single or multi-stage gearbox and a clutch, with one wheelset having a wheelset shaft and two with it Rigidly connected wheels that are supported on rails.
- the actual braking torque is determined, for example, by the higher-level control device, which also carries out the comparison of the determined actual braking torque with the target braking torque.
- the actual braking torque that is actually generated or can be generated is determined, for example, based on the power at the connection terminals of the drive motor.
- the actual braking torque can also be determined, for example, based on a negative acceleration, which comes from observing a change in the speed of the rail vehicle, which is detected, for example, by means of one or more speed sensors on the motor and / or wheelset shafts, or from signals from one or more Acceleration sensors can be derived.
- the actual braking torque can also be determined based on a torque acting on a torque support of the drive motor. Preferably, redundant or diverse-redundant information is taken into account for determining the actual braking torque in this regard, to ensure a sufficiently high level of failure safety.
- the target braking torque is specified to the control device, for example, by a higher-level control device connected to it in terms of signals.
- this target braking torque initially corresponds, for example, to a maximum braking torque that can be provided by the electrodynamic braking device.
- the request for rapid braking can, for example, be made by the person driving the vehicle manually or automatically.
- the second control algorithm has a smaller range of functions compared to the first control algorithm with regard to the braking function.
- the determined I st braking torque is compared with a threshold value that is dependent on the target braking torque and, if the I st braking torque falls below the threshold value, the power semiconductor switches of the power converter are controlled using the second control algorithm controlled.
- a threshold value suitable for the comparison from the higher-level control device corresponds, for example, to the target braking torque, but can alternatively also be below the target braking value and have a predetermined relative, in particular percentage, or predetermined absolute distance from it.
- a threshold value defined lower than the target braking torque it can advantageously be ensured that even small deviations of the specific actual braking torque from the target Braking torque activation of the second control algorithm with a reduced range of functions takes place.
- the power semiconductor switches of the power converter are controlled by means of the second control algorithm of the control device until rapid braking is completed.
- a second aspect of the invention relates to an electric drive system of a rail vehicle, wherein the drive system has at least one electrodynamic braking device, which comprises at least one electric drive motor, a power converter electrically connected thereto with a plurality of power semiconductor switches, and a control device which controls the plurality of power semiconductor switches.
- the electric drive system is characterized in that the electrodynamic braking device is designed to carry out the method according to the first aspect of the invention.
- the at least one drive motor is designed as a permanently excited three-phase synchronous motor.
- the at least one power converter is designed as a pulse inverter.
- the electrodynamic braking device further has a further control device which is superordinate to the control device, the further control device being designed in particular to specify the target braking torque to the control device and/or to compare the determined actual braking torque with the target To carry out braking torque.
- a third aspect of the invention relates to a rail vehicle, wherein the rail vehicle is characterized in that it has at least one electrodynamic braking device designed for carrying out the method according to the first aspect of the invention or at least one drive system according to the second aspect of the invention.
- the rail vehicle According to a further development of the rail vehicle according to the invention, it is designed as a high-speed multiple unit.
- FIG. 1 shows a rail vehicle with an electric drive system for operation on an AC supply network
- FIG. 2 shows a rail vehicle with an electric drive system for operation on a direct current supply network
- FIG. 3 shows the drive system of the rail vehicle of FIG. 1 with devices of the electrodynamic braking device according to the invention
- FIG. 4 shows a flow chart of the method according to the invention.
- the rail vehicle TZ is designed, for example, as a multiple unit for passenger transport with a plurality of cars, with only one end car EW and a middle car MW coupled to it being shown. Both cars have a respective car body WK, which via bogies in the form of a TDG motor bogie with drive motors AM or
- Running bogies LDG without traction motors are supported on rails of a track, not shown.
- the rail vehicle TZ moves on the rails in the directions FR specified by them.
- Components of an electric drive system AS of a rail vehicle TZ operated on an AC supply network are shown schematically in the end car EW. These components are usually arranged in special areas within the car body WK, in the underfloor area, in the roof area or even distributed across several cars of the rail vehicle TZ. Further components of the drive system AS, in particular auxiliary operations required for the operation of the components, are also provided, but are not specifically shown in FIG.
- the drive train AS can be electrically connected to an overhead line, not shown, of the alternating current supply network, the overhead line carrying a single-phase alternating current, for example.
- the alternating current is supplied to a mains-side primary winding of a drive transformer ATR, in which the mains-side voltage level of, for example, 15kV, 16.7Hz or 25kV, 50Hz is transformed to a lower voltage level.
- a secondary winding of the drive transformer ATR is connected to a grid-side power converter 4QS, for example a four-quadrant divider, which rectifies the alternating current.
- the grid-side power converter 4QS feeds a DC intermediate circuit ZK, which in turn feeds a load-side power converter PWR, for example a pulse-controlled inverter.
- a load-side power converter PWR for example a pulse-controlled inverter.
- One or more intermediate circuit capacitors are arranged in the DC intermediate circuit ZK, which act as electrical Energy storage serves in particular to smooth the direct voltage.
- the load-side power converter PWR generates a three-phase alternating voltage of variable frequency and amplitude from the direct voltage of the direct voltage intermediate circuit ZK, with which the stator windings of, for example, two drive motors TM arranged in the drive bogie TDG of the end car EW are fed.
- the function in particular of the grid-side 4QS and the load-side power converter PWR is controlled by a control device ICU, although individual control devices can alternatively be provided for the power converters.
- FIG. 2 shows schematically a rail vehicle TZ corresponding to the rail vehicle TZ of FIG. 1 with an alternative drive system AS.
- the pantograph PAN can be connected to an overhead line, again not shown, of a direct current supply network.
- a busbar is often run parallel to the track, with which the drive train AS can be connected via one or more side pantographs, which are arranged, for example, in the area of the car body ends or the bogies.
- the direct current from the supply network is passed through an input filter or Mains filter NF is fed to the DC intermediate circuit ZK of the drive system AS.
- the network filter NF includes, for example, a filter inductance in the form of a choke and a capacitor, whereby the capacitor can also fulfill the function of an intermediate circuit capacitor ZK of the drive train AS.
- FIG. 3 shows schematically the exemplary drive system AS of the rail vehicle TZ of FIG. 1, although not all of the components of the system described above are shown again.
- only one secondary winding is from an AC supply network fed drive transformer ATR and only one drive motor AM.
- the secondary winding of the drive transformer ATR is connected to the grid-side power converter 4QS.
- the grid-side power converter 4QS is designed as a four-quadrant divider, which converts the alternating voltage provided on the input side by the drive transformer ATR into a direct voltage and provides it on the output side.
- the conversion takes place by controlling power semiconductor switches or Power transistors, the power semiconductor switches being realized, for example, based on silicon or a semiconductor with a larger band gap than silicon, in particular silicon carbide (SiC), gallium nitride (GaN) or diamond.
- Two power transistors are electrically connected in series in a switching branch, the middle connection point of which is connected to a respective input of the grid-side power converter 4QS.
- the external connection points of the switching branches are connected to a respective output of the 4QS power converter on the grid side.
- the grid-side power converter 4QS feeds a DC intermediate circuit ZK, which in turn is connected to inputs of the load-side power converter PWR.
- An example of an intermediate circuit capacitor CZK is arranged in the DC intermediate circuit ZK, to which an intermediate circuit voltage UZK is applied.
- several intermediate circuit capacitors CZK can also be electrically connected in parallel in order to provide a desired capacity.
- a brake divider BST is also arranged parallel to the intermediate circuit capacitor CZK, which, for example, comprises a series connection of a controllable switch and a resistor R.
- the load-side power converter PWR is designed, for example, as a pulse inverter, which converts the direct voltage present on the input side into an alternating voltage of variable voltage level and frequency and makes it available at outputs.
- the conversion takes place by controlling the power semiconductor switches or Power transistors by a control device ICU, the power semiconductor switches in turn being realized, for example, based on silicon or a semiconductor with a larger band gap than silicon, in particular silicon carbide (SiC), gallium nitride (GaN) or diamond.
- the load-side power converter PWR has three or a whole multiple of three parallel switching branches, each with two power semiconductor switches connected in series, to each of which a so-called freewheeling diode is connected in anti-parallel.
- the drive motor AM which is fed by the load-side converter PWR, is designed as a separately excited three-phase asynchronous machine or preferably as a permanent magnet excited three-phase synchronous machine.
- the control device ICU controls the exemplary six power semiconductor switches of the load-side power converter PWR according to a control algorithm ral, signals of this control being represented by six vertical dashed arrows starting from the control device ICU.
- the control device ICU is signaled by a higher-level control device MCU, which, for example, controls several or all control devices ICU of the drive system AS of the rail vehicle TZ, in particular specifications regarding a drive torque or braking torque, which implements these, if necessary, taking into account further information using a control algorithm. 3 specifically looks at the case of initiating rapid braking of the rail vehicle TZ.
- the higher-level control device MCU receives an emergency braking request sba, the signaling of which was triggered, for example, by the person driving the rail vehicle TZ or automatically by a safety system of the rail vehicle TZ.
- the higher-level control device MCU defines a target braking torque sbm, with which a maximum braking effect is to be achieved by the electrodynamic braking device EBV .
- This target braking torque sbm is signaled by the higher-level control device MCU to the control device ICU, which generates control commands for controlling the power semiconductor switches of the load-side power converter PWR using a first control algorithm.
- An actual braking torque ibm achieved by the electrodynamic braking device EBV as a result of this control is determined by the higher-level control device MCU on the basis of various signals or signals supplied to it. information determined.
- signals or information include or represent, for example, currents in the phases of the stator winding SW of the drive motor AM, which are determined, for example, by means of ammeters A arranged in or on motor cables.
- signals or information taken into account by the higher-level control device MCU can be an intermediate circuit voltage UZK, which is determined, for example, by means of a voltmeter V arranged in the DC intermediate circuit ZK parallel to the intermediate circuit capacitor ZK, a speed D of the drive motor AM, which is determined, for example, by means of a speed sensor the motor shaft of the drive motor AM is determined by a central one Unit of the rail vehicle TZ certain speed or include or represent a speed curve, or an acceleration of the rail vehicle TZ measured by one or more acceleration sensors.
- UZK intermediate circuit voltage
- V voltmeter V
- a speed D of the drive motor AM which is determined, for example, by means of a speed sensor the motor shaft of the drive motor AM is determined by a central one Unit of the rail vehicle TZ certain speed or include or represent a speed curve, or an acceleration of the rail vehicle TZ measured by one or more acceleration sensors.
- the higher-level control device MCU compares the determined actual braking torque ibm with the defined target braking torque sbm. Should this comparison show that the actual braking torque ibm is less than the target braking torque sbm, with a threshold value dependent on the target braking torque sbm being used for the comparison, for example, the higher-level control device MCU signals the selection of a control device ICU second control algorithm ra2, by means of which control commands for controlling the power semiconductor switches of the power converter PWR are subsequently generated.
- This second control algorithm ra2 which, like the first control algorithm ral, is stored in the control device ICU, has a smaller range of functions compared to the first control algorithm ral.
- FIG. 4 schematically shows a flow chart of the method according to the invention based on the electrodynamic braking device EBV of FIG. 3, with only steps when rapid braking is requested being considered. Furthermore, the control device ICU uses the first control algorithm ral in the initial situation of the flow chart, which includes functions for both driving and electrodynamic braking of the AS drive system.
- a first step S 1 the higher-level control device MCU receives an emergency braking request sba. Based on this received request sba, the higher-level control device MCU defines a target braking torque sbm in a subsequent second step S2 and signals this to the control device ICU.
- the higher-level control device MCU determines an actual braking torque ibm achieved by the electrodynamic braking device EBV, for which it signals or information supplied is taken into account.
- the higher-level control device MCU compares the determined actual braking torque ibm with the defined target braking torque sbm or with a threshold value derived from this.
- the higher-level control device MCU If this comparison shows that the actual braking torque ibm is smaller than the target braking torque or If the target braking torque sbm falls below a certain relative or absolute amount, branch "ja", the higher-level control device MCU signals the control device ICU in a fifth step S5 to select the second control algorithm ra2, which is reduced compared to the first control algorithm ral used initially However, if the specific actual braking torque ibm corresponds to the target braking torque or is not below a threshold value, branch "no", the higher-level control device MCU sets monitoring or the determination of the current actual braking torque continues ibm.
- the control device ICU uses the second control algorithm ra2 in a subsequent sixth step S 6 for controlling the power semiconductor switches of the power converter PWR.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022204252.2A DE102022204252A1 (de) | 2022-04-29 | 2022-04-29 | Verfahren zum Steuern einer elektrodynamischen Bremsvorrichtung eines Schienenfahrzeugs |
| PCT/EP2023/058698 WO2023208531A1 (de) | 2022-04-29 | 2023-04-03 | Verfahren zum steuern einer elektrodynamischen bremsvorrichtung eines schienenfahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4489986A1 true EP4489986A1 (de) | 2025-01-15 |
Family
ID=86007424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23717122.8A Pending EP4489986A1 (de) | 2022-04-29 | 2023-04-03 | Verfahren zum steuern einer elektrodynamischen bremsvorrichtung eines schienenfahrzeugs |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250282232A1 (de) |
| EP (1) | EP4489986A1 (de) |
| DE (1) | DE102022204252A1 (de) |
| WO (1) | WO2023208531A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5828979A (en) * | 1994-09-01 | 1998-10-27 | Harris Corporation | Automatic train control system and method |
| EP1619063B1 (de) * | 2004-07-21 | 2009-10-14 | Nissan Motor Company, Limited | Verfahren und Vorrichtung zum Steuern des Drehmoments eines Elektromotors für ein Kraftfahrzeug |
| DE102006051317A1 (de) | 2006-10-31 | 2008-05-08 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Verfahren zum generatorischen Bremsen eines Schienenfahrzeugs mit unterlegtem passiven Ersatzbremskreis und Vorrichtung zur Ausführung des Verfahrens |
| US8180544B2 (en) * | 2007-04-25 | 2012-05-15 | General Electric Company | System and method for optimizing a braking schedule of a powered system traveling along a route |
| JP5055246B2 (ja) * | 2008-10-31 | 2012-10-24 | 日立オートモティブシステムズ株式会社 | 回転電機の制御装置 |
| DE102012203132A1 (de) | 2012-02-29 | 2013-08-29 | Siemens Aktiengesellschaft | Schienenfahrzeugbremsvorrichtung |
| CN104936815B (zh) * | 2012-11-21 | 2017-08-11 | 庞巴迪运输有限公司 | 用于轨道交通工具轮轴的制动操作方法和用于轨道交通工具的制动系统 |
| DE102015226831A1 (de) * | 2015-12-30 | 2017-07-06 | Siemens Aktiengesellschaft | Fahrzeug mit einer Bremseinrichtung |
| DE102017106119A1 (de) * | 2017-03-22 | 2018-09-27 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Bremsvorrichtung für Schienenfahrzeuge und Verfahren zum Bremsen von Schienenfahrzeugen |
| DE102019129328A1 (de) | 2019-10-30 | 2021-05-06 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Verfahren zur Schnellbremsung eines Schienenfahrzeugs mit definierten Bremsvorgaben |
-
2022
- 2022-04-29 DE DE102022204252.2A patent/DE102022204252A1/de active Pending
-
2023
- 2023-04-03 EP EP23717122.8A patent/EP4489986A1/de active Pending
- 2023-04-03 US US18/861,292 patent/US20250282232A1/en active Pending
- 2023-04-03 WO PCT/EP2023/058698 patent/WO2023208531A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20250282232A1 (en) | 2025-09-11 |
| DE102022204252A1 (de) | 2023-11-02 |
| WO2023208531A1 (de) | 2023-11-02 |
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