EP3983275A1 - Verfahren zum betreiben eines sicherheitssystems eines schienenfahrzeugs, sicherheitssystem für ein schienenfahrzeug und schienenfahrzeug - Google Patents
Verfahren zum betreiben eines sicherheitssystems eines schienenfahrzeugs, sicherheitssystem für ein schienenfahrzeug und schienenfahrzeugInfo
- Publication number
- EP3983275A1 EP3983275A1 EP20732770.1A EP20732770A EP3983275A1 EP 3983275 A1 EP3983275 A1 EP 3983275A1 EP 20732770 A EP20732770 A EP 20732770A EP 3983275 A1 EP3983275 A1 EP 3983275A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signals
- controls
- signal transmission
- rail vehicle
- signal
- 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
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008054 signal transmission Effects 0.000 claims abstract description 71
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 230000001681 protective effect Effects 0.000 claims abstract description 52
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 68
- 230000008859 change Effects 0.000 claims description 52
- 239000004020 conductor Substances 0.000 claims description 35
- 230000003287 optical effect Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000004913 activation Effects 0.000 claims description 5
- 230000009849 deactivation Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 2
- 108090000623 proteins and genes Proteins 0.000 claims description 2
- 230000011514 reflex Effects 0.000 description 10
- 230000001939 inductive effect Effects 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
-
- 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
- B60T13/665—Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
-
- 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
Definitions
- the invention relates to a method for operating a safety system, in particular a high-security system, of a rail vehicle with an automatic protective reaction to at least one of several safety elements of the safety system.
- a known (high) safety system for a rail vehicle is, for example, a rapid braking system with a rapid braking loop.
- a quick brake loop is usually provided for this purpose.
- Rapid brake loop is available as a conductor loop, i.e. H. as a cable loop.
- the conductor loop extends over the entire rail vehicle so that all brakes can be activated.
- the conductor loop extends over the whole group.
- the conductor loop is then continued via the couplings of the mutually coupled rail vehicles. The more wagons the rail vehicle or association has, the longer the conductor loop.
- Each brake on the rail vehicle is controlled by a contactor.
- the coils of the contactors are integrated in the conductor loop.
- the energy supply for the contactors is thus provided via the conductor loop itself.
- the conductor loop not only supplies the contactors with energy, but also transmits information - i.e. signals - to the contactors. If there is an interruption within the conductor loop, the contactors switch and the brakes of the rail vehicle are activated automatically. In this way, a protective reaction is automatically initiated / executed as soon as there is an interruption within the conductor loop.
- the problem with the rapid braking system with the rapid braking loop is that it is only designed for a certain number of shooters - and thus only for a certain number of brakes (and thus for cars). Because the more cars and thus also the brakes the rail vehicle has, that is, the more contactors have to be supplied with energy via the conductor loop, the higher the voltage drop across the conductor loop. In order to be able to control more brakes, a larger energy supply including a correspondingly large conductor cross-section of the conductor loop is necessary.
- One object of the invention is to provide an improved method for operating a safety system of a rail vehicle with an automatic protective reaction at least one of several safety elements of the safety system in which the number of safety elements to be controlled (such as brakes) is not limited.
- the object is achieved by a method for operating a security system, in particular a high security system, of a rail vehicle with automatic protective reaction at least one of several security elements of the security system, in which, according to the invention, signals are transmitted to several controls using a signal transmission system.
- the signals are also received by the controls.
- the safety elements are activated by the controls depending on the signals received.
- the controls are supplied with electrical energy independently of the signal transmission system.
- the number of security elements is not limited. In this way, a number of wagons in the rail vehicle - and thus usually also security elements - can be increased without having to check the suitability of the security system, in particular the signal transmission system, for an increased number of security elements.
- the signal transmission system can be a bus system, in particular a field bus system.
- the bus system is preferably linear, i.e. H. linear, executed.
- the bus system can also be designed in a star shape.
- the signals are preferably transmitted via the bus system using a secure communication protocol.
- the signals can be sent at fixed time intervals according to the secure communication protocol. In this way, an error and / or a failure within the signal transmission system, in particular within the transmission path, can be detected.
- the secure communication protocol can also include an error disclosure. In this way, an incorrectly transmitted signal can be recognized. It is also possible that an error within the signal transmission system is detected in this way.
- the bus system can be a CAN bus system, for example.
- the secure communication protocol can e.g. B. "CANopen Safety” or “SafetyBUS p". Other secure communication protocols are also possible. Other bus systems are also possible.
- the signals that are transmitted via the bus system can be electrical signals. Furthermore, the signals that are transmitted via the bus system can be optical signals.
- the signal transmission system can further be a waveguide system.
- the waveguide system can be used as a waveguide, e.g. B. have a coaxial cable, a waveguide and / or a twisted pair cable.
- High-frequency electrical signals in the form of wave packets are preferably transmitted via the waveguide system.
- the frequency of the high frequency electrical signals i.e. H. the frequency within the wave packet can depend on the waveguide used.
- the frequency of the high-frequency electrical signals in a twisted pair cable of category Cat 5e can be up to 100 MHz.
- the signal transmission via the waveguide system can be monitored, for example by detecting a reflex of the respective signal transmitted via the signal transmission system.
- the signal transmission system can be an optical waveguide system.
- Optical signals in the form of wave packets are preferably transmitted via the optical waveguide system.
- the signal transmission via the optical waveguide system can be monitored, for example by detecting a reflection of the respective signal transmitted via the signal transmission system.
- the signal transmission system can also have a conductor loop. Signals in the form of current with a certain frequency in the low-frequency range are preferably transmitted via the conductor loop.
- the frequency in the low-frequency range can, for example, be in the single-digit or double-digit kHz range.
- the frequency can be in the low frequency range at least 1 kHz.
- the frequency in the low-frequency range can be a maximum of 20 kHz, for example.
- the signals are expediently tapped inductively from the conductor loop. It is also useful if the signals that are picked up are fed to the controls.
- the signals are expediently designed as a signal sequence of signals of the same type during normal operation of the safety system.
- the signals of the same type are repeated in the signal sequence at fixed time intervals.
- the signals of the same type can be repeated in the signal sequence in the millisecond range.
- the repetition rate in the signal sequence can be at least 10 Hz.
- the repetition rate in the signal sequence can be a maximum of 1 kHz.
- the signals of the same type in the signal sequence can repeat themselves without a break, especially in the case of the conductor loop.
- a protective reaction of the security system in particular at least one of the security elements, preferably several of the security elements, can be initiated from the normal operation of the security system.
- the protective reaction to be initiated can depend on the detected change in the signal sequence.
- a change in the signal sequence can be recognized if, for example, a transit time of one of the signals required for transmission is changed.
- a change in the signal sequence can also be recognized if, for example, a frequency of one of the transmitted signals is changed.
- a change in the signal sequence can be recognized if, for example, an intensity of one of the transmitted signals has changed.
- a change in the signal sequence can be recognized if, for example, no signal is received for a certain minimum time.
- Other changes in the transmission and / or of at least one of the transmitted signals can also be recognized as a change in the signal sequence.
- Certain tolerances may be allowed before a change is recognized.
- a change in the signal sequence can be recognized directly by at least one of the controls.
- the controls can, for example, each be designed as memory-programmed controls. In this way, the controls can be able to recognize changes in the signal sequence.
- a change in the signal sequence can be recognized indirectly by at least one of the controls, in particular all controls.
- a change in the signal sequence can be detected by a master CPU.
- the master CPU can cause the signal sequence to be interrupted, in particular in order to initiate a protective reaction.
- the interruption of the signal sequence is expediently recognized by each activation as a change in the signal sequence. If the master CPU detects a change in the signal sequence, the master CPD can also initiate a protective reaction in another way.
- the type of protective reaction to be initiated can be dependent on the detected change in the signal sequence.
- the automatic protective reaction of at least one of several security elements can be an automatic protective reaction of several of the security elements, in particular of all security elements.
- the automatic protective reaction comprises at least one of several safety elements an activation of several, in particular all, brakes of the rail vehicle.
- the activation of the brakes of the rail vehicle can, for example, be a
- the automatic protective reaction of at least one of a plurality of safety elements can furthermore include a deactivation of at least one energy supply within the rail vehicle.
- the automatic protective reaction to at least one of several security elements can include deactivation of at least one energy supply to at least one power container of the rail vehicle and / or to at least one power component of the rail vehicle. In this way, the corresponding energy supply can be interrupted.
- At least one power component of the rail vehicle is preferably arranged within a power container of the rail vehicle.
- a power component can for example be a transformer, a four-quadrant controller or an inverter, in particular with power semiconductors, or the like. be.
- the invention is also directed to a security system, in particular a high security system, for a rail vehicle.
- the security system comprises an automatic protection reaction of at least one of several security elements of the security system.
- the security system is set up for the automatic protective reaction of at least one of several security elements of the security system.
- the security system comprises a signal transmission system for transmitting signals to several actuators.
- the signal transmission system is set up for transmitting signals to a plurality of controls.
- the security system further comprises several controls for receiving the transmitted signals and for controlling the security elements as a function of the received signals.
- the controls are set up to receive the transmitted signals and to control the security elements as a function of the received signals.
- an energy supply for the controls is independent of the signal transmission system.
- the security system preferably corresponds to a security requirement level of at least level 3.
- the safety requirement level also safety integrity level, can be determined using the standard EN
- each security element is preferably actuated by one of the controls.
- Each control can control one or more of the safety elements.
- At least one of the controls can be designed as a memory-programmed control. It is advantageous if each of the controls is designed as a memory-programmed control.
- the respective stored-program controller can each have a logic.
- the respective stored-program control can evaluate the received signals, in particular using the respective logic. In particular if the signals are designed as a signal sequence of signals of the same type during normal operation of the safety system, the respective stored-program control can recognize this change in the event of a change in the signal sequence.
- the security system preferably comprises a master CPU.
- the master CPU is expediently set up to monitor and / or control signals transmitted via the signal transmission system.
- the master CPU can recognize this change in the event of a change in the signal sequence.
- the master CPU when the master CPU detects a change in the signal, in particular in the aforementioned signal sequence, the master CPU can initiate an automatic protective reaction.
- the master CPU detects a change in the signal, particularly in the aforementioned signal sequence , the master CPU can, for example, cause the signal sequence to be interrupted, in particular to initiate the protective reaction. For example, the master CPU can prevent further signals from being sent.
- the signal transmission system can for example be a bus system, in particular a field bus system.
- the bus system is preferably set up to transmit the signals using a secure communication protocol.
- the signal transmission system can be a waveguide system for the transmission of high-frequency electrical signals in the form of wave packets.
- the waveguide system can be set up for the transmission of high-frequency electrical signals in the form of wave packets. It is advantageous if the security system is set up to detect a reflex of the respective transmitted signal.
- the signal transmission system can be an optical waveguide system for the transmission of optical signals in the form of wave packets.
- the optical waveguide system can be set up for the transmission of optical signals in the form of wave packets. It is advantageous if the security system is set up to detect a reflex of the respective transmitted signal.
- the signal transmission system can be a conductor loop for the transmission of current of a specific frequency in the low-frequency range.
- the head loop for the transmission of current of a certain frequency in the low frequency range.
- signals can be transmitted over the conductor loop in the form of current of a certain frequency in the low-frequency range.
- the signal transmission system can also have inductive taps.
- the safety system can be designed, for example, as a rapid braking system for a rail vehicle.
- the safety elements that can carry out the automatic protective reaction can be brakes of a higher-level system, in particular a rail vehicle.
- the automatic protective reaction can be an emergency stop.
- the safety system can also be designed, for example, as a passenger emergency braking system for a rail vehicle.
- the safety elements that can execute the automatic protective reaction can be the brakes of a higher-level system, in particular a rail vehicle.
- the automatic protective reaction can be emergency braking.
- the safety system can be designed, for example, as a fire protection system for a rail vehicle.
- the safety elements that can carry out an automatic protective reaction can include energy supplies from power containers and / or energy supplies from power components of a higher-level system, in particular a rail vehicle.
- the automatic protective reaction can be a deactivation of at least one of the energy supplies.
- the safety elements that can carry out an automatic protective reaction can also include at least one display element of the superordinate system, in particular of the rail vehicle.
- the automatic protective reaction can trigger an show a warning on the display element.
- the safety system can be used to replace a previous rapid brake loop or a previous passenger emergency brake loop or a previous fire protection loop of a rail vehicle.
- the invention is directed to a rail vehicle with the aforementioned safety system and / or one of its further developments.
- the invention is also directed to an association of several rail vehicles coupled to one another with the aforementioned safety system and / or one of its developments.
- the safety system can in particular as a rapid braking system, as a passenger emergency braking system and / or as a
- FIG. 1 shows a rail vehicle with a first safety system
- FIG. 2 shows a rail vehicle with a second safety system
- FIG 3 shows a rail vehicle with a third safety system.
- FIG. 1 shows schematically a rail vehicle 2 with a first security system 4.
- the security system 4 has several security elements 6.
- the safety elements 6 comprise the brakes 8 of the rail vehicle 2. Additionally or alternatively, the safety system 4 can also have other safety elements, such as, for example, power supplies for power components of the rail vehicle 2.
- the security system 4 comprises an automatic protective reaction of the plurality of security elements 6. In other words: the security system 4 is set up for an automatic protective reaction of the plurality of security elements 6.
- the safety system 4 comprises a signal transmission system 10 for transmitting signals to a plurality of controls 16.
- the signal transmission system 10 is designed as a bus system 12, in particular as a field bus system.
- bus system 12 is linear.
- the cable 14 of the bus system 12 can be a twisted pair cable, for example. H. a cable with two wires can be used. In the case of a twisted pair cable, the signals are designed as electrical signals. An optical waveguide can also be used as the cable 14 of the bus system 12. In the latter case, the signals are designed as optical signals.
- the security system 4 also comprises several Anticianun gene 16 for receiving the transmitted signals and for driving the security elements 6 depending on the received signals.
- the controls 16 are connected to the signal transmission system 10.
- the controls 16 are designed as memory-programmed controls.
- the security system 4 also includes a master CPU 18.
- the master CPU 18 is connected to the signal transmission system 10.
- the master CPU 18 is set up to monitor and / or control signals transmitted via the signal transmission system 10.
- the safety system 4 further comprises several sensors 20.
- the sensors 20 can be designed as slave controllers.
- the sensors 20 are also connected to the signal transmission system 10.
- the safety system 4 also includes an energy supply 22 for the controls 16.
- One energy supply 22 for the controls 16 is independent of the signal transmission system 10.
- the energy supply 22, also the energy supply system 22, comprises at least one supply unit 24 and several supply cables 26.
- the controls 16 are connected to the supply unit 24 (or to one of several supply units 24) via the supply cables 26.
- the controls 16 are provided with electrical energy from the supply unit (s) 24 via the supply cable 26. In this way, the controls 16 are supplied with electrical energy independently of the signal transmission system 10.
- the supply cables 26 of the power supply 22 are shown as GE dashed lines in order to ensure better distinguishability from the signal transmission system 10 (and its cable 14).
- signals are transmitted to the controls 16.
- the signals are transmitted to the controls 16 via the bus system 12.
- the master CPU 18 causes the signals to be sent.
- the signals are transmitted via the bus system 12 according to a secure communication protocol.
- the signals are sent at fixed time intervals according to the secure communication protocol.
- the signals of the signal sequence can, for example, with fixed time intervals which are sent in the millisecond range. Due to the fixed time intervals, the absence of a signal can be detected.
- the secure communication protocol also includes an error disclosure. Due to the error disclosure, incorrectly transmitted signals can be recognized.
- the signals are designed as a signal sequence of signals of the same type. In this way a change in the signal sequence can be recognized.
- the bus system 12 can be a CAN bus system, for example.
- the secure communication protocol can e.g. B. "CANopen Safety” or “SafetyBUS p".
- Other bus systems and / or other secure communication protocols are also possible.
- the transmitted signals are received by the controls 16.
- the security elements 6 are controlled by the controls 16 depending on the received signals.
- the controls 16 receive signals transmitted via the signal transmission system 10 and control the safety elements 6 as a function of the received signals.
- the controls 16 thus receive the signals in the form of a signal sequence of signals of the same type with fixed time intervals. If a respective control 16 has properly received a respective signal, this control 16 sends a confirmation back to the master CPU 18.
- Each security element 6 is actuated by one of the actuators 16. In this example, one of the controls 16 controls several of the security elements 6.
- the safety elements 6 embodied here as brakes 8 are controlled in such a way that the brakes 8 are / remain deactivated as long as no other system activates the brakes 8.
- the brake valves of the brakes 8 activated by the safety system 4 are / remain deactivated during normal operation of the safety system 4.
- the sensors 20 can transmit information to the master CPU 18. Depending on the information transmitted by the sensors 20, the master CPU 18 can determine a malfunction and / or an error condition which makes braking necessary.
- the master CPU 18 If the master CPU 18 detects a malfunction and / or an error state which, in particular, makes braking necessary, then the master CPU 18 interrupts the sending of signals. In this way, the signal sequence is interrupted.
- the controls 16 If no signal is transmitted for a certain minimum time and therefore no signal is received by the controls 16, this is recognized by the controls 16 as a change in the signal sequence. Each of the controls 16 does not receive a signal for the specific minimum time and thus knows a change in the signal sequence. On the basis of the detected change in the signal sequence, the controls 16 automatically initiate a protective reaction of the security elements 6, in particular all security elements 6. In this way, the safety system 4 automatically switches to the protective reaction.
- the safety elements 6, here the brakes 8, are activated in such a way that the brakes 8 are activated. In this way, braking, in particular rapid braking or emergency braking, of the rail vehicle 2 is initiated as a protective reaction.
- a fault or an error in the signal transmission system 10 is usually expressed by (at least) a change in the signal sequence.
- the signals in normal operation of the security system 4 are designed as a signal sequence of similar signals with fixed time intervals.
- the time intervals can be monitored using an increment counter, for example.
- Each signal also includes a check number, also a checksum, to reveal errors.
- this respective control 16 detects a change in the signal sequence.
- the minimum time is greater than the fixed time interval between the signal sequence.
- a defect in the cable 14 of the signal transmission system 10 e.g. a loose contact, a broken cable o. ⁇ .
- a defect in the cable 14 of the signal transmission system 10 e.g. a loose contact, a broken cable o. ⁇ .
- the controls 16 Even if at least one of the controls 16 detects an incorrectly transmitted signal, this respective control 16 detects a change in the signal sequence.
- the incorrectly transmitted signal can be recognized, for example, using the error disclosure, in particular on the basis of an incorrect check number.
- this control 16 If one of the controls 16 has not received a signal, this control 16 also sends no confirmation back to the master CPU 18. The master CPU 18 then initiates a
- Protective reaction For example, the master CPU 18 stops sending signals in order to initiate the protective reaction.
- this control 16 either sends no confirmation back to the master CPU 18 or sends a warning to the master CPU 18.
- the master CPU 18 then initiates a protective reaction. For example, the master CPU 18 stops sending signals in order to initiate the protective reaction. If no more signals are sent, then all controls 16 no longer receive any signal. If no signal is received by the controls 16 for a certain minimum time, then a change in the signal sequence is recognized by these controls 16 and the security elements 6 connected to the respective control 16 are switched. In this example, the brakes 8 are activated if they are not yet activated. Thus braking takes place as a protective reaction.
- the bus system 12 could be performed by the association. This means that in this case the bus system 12 could be guided via the couplings of the rail vehicles coupled to one another (not shown).
- the signal transmission system 10 can also be designed as a signal transmission system for several safety systems of the rail vehicle 2, each with an automatic protective reaction.
- the signals from the various security systems can be transmitted as different types of telegrams via the (common) signal transmission system 10 designed as a bus system 12. It would also be possible for the (common) signal transmission system 10 embodied as a bus system 12 to have more than two wires, in particular at least 4 wires. In particular, each security system using the (common) signal transmission system 10 could transmit signals over two of the wires (not shown).
- FIG. 2 schematically shows a rail vehicle 28 with a further safety system 30 which has several safety elements 6.
- the safety system 30 includes a signal transmission system 32 for transmitting signals to the multiple controls 16 of the safety system 30.
- the multiple sensors 20 of the security system 30 are connected directly to the master CPU 18 (and not, as in FIG. 1, indirectly via the signal transmission system).
- the signal transmission system 32 is designed as a waveguide system 34 for the transmission of high-frequency electrical signals in the form of wave packets.
- the / the cable 36 of the waveguide system 34 is / are formed as a waveguide 36 from.
- a cable 36 of the waveguide system 34 can be a coaxial cable, a waveguide or a twisted pair cable.
- the cable 36 is exemplified as a waveguide. Via the waveguide system 34 high-frequency electrical signals are transmitted in the form of wave packets.
- the cable 36 embodied as a waveguide 36 has an open end 38.
- the signals can be reflected at the open end 38.
- the reflected signal is called a reflex.
- the security system 30, here the waveguide system 34, is set up to detect a reflex of the respective transmitted signal.
- the security system 30 has a transceiver unit 40 which is connected to the master CPU 18.
- the transceiver unit 40 sends the signals. Also receives, d. H. the transceiver unit 40 detects the reflections of the signals.
- the signals are designed as a signal sequence of signals of the same type with fixed time intervals.
- the transit time of the signal can be determined, for example, by determining a temporal distance between a signal of the signal sequence and its reflex.
- the frequency of the high-frequency electrical signals ie the frequency within the wave packet, is preferably in the MHz range.
- the signal transmission system 32 designed as a waveguide system 34 also has switching elements 42. Each of the switching elements 42 is connected to one of the controls 16 via a respective data connection 44.
- Switching elements 42 can be switched by the controls 16.
- the signals are designed as a signal sequence of signals of the same type.
- the signals of the same type in the signal sequence are repeated at fixed time intervals, for example in the millisecond range.
- the switching elements 42 are closed. This means that in normal operation the signals are reflected at the open end 38.
- this respective control 16 detects a change in the signal sequence.
- this control 16 If one of the controls 16 has recognized a change in the Signalfol ge, for example because it has not received a signal for the certain Min least time, then this control 16 also opens the associated switching element 42, d. H. the switching element 42 associated with this control 16 is switched to its open position.
- the master CPU 18 determines the runtime of the signals and monitors them. By opening one of the switching elements 42, the running time is shortened. This means that the transit time required for the transmission of at least one of the signals is changed.
- the master CPU 18 recognizes the change in the running time and recognizes this as a change in the signal sequence.
- the master CPU 18 If the master CPU 18 detects a change in the signal sequence, the master CPU 18 stops sending signals.
- the master CPU 18 detects a change in the frequency and / or the intensity of at least one reflex, conclusions are drawn about a changed frequency or a changed intensity of the respective transmitted signal and a change in the signal sequence is thus recognized.
- the master CPU 18 If the master CPU 18 detects a change in the signal sequence, the master CPU 18 initiates a protective reaction. For example, the master CPU 18 stops sending signals, in particular by the master CPU 18 giving the transceiver unit 40 the corresponding command.
- an optical waveguide system for transmitting optical signals in the form of wave packets can in principle also be provided (not shown).
- the mode of operation of an optical waveguide system is in principle analogous to the waveguide system 34 described here.
- the signal transmission system 32 embodied as a waveguide system 34 could be guided through the assembly (not shown).
- FIG. 3 schematically shows a rail vehicle 46 with a further safety system 48 which has several safety elements 6.
- the safety system 48 comprises a signal transmission system 50 for transmitting signals to the multiple controls 16 of the safety system 48.
- the signal transmission system 50 has a conductor loop 52.
- the conductor loop 52 is set up for the transmission of signals in the form of current of a certain frequency in the low frequency range.
- the cable 54 of the conductor loop 52 is designed as an electrical conductor.
- the signal transmission system 50 also has inductive handles 56 from.
- Signals in the form of current with a specific frequency in the low-frequency range are transmitted via the conductor loop 52.
- the frequency in the low-frequency range can, for example, be in the single-digit or double-digit kHz range.
- the signals are tapped inductively from the conductor loop 52 by means of the inductive taps 56.
- the tapped signals are fed to the controls 16.
- the signals are designed as a signal sequence of signals of the same type.
- the signals of the same type in the signal sequence follow one another without a break.
- the respective control 16 can issue a warning signal in the form of current with a different frequency via the respective inductive tap 56, which then functions as a feed, feed into the conductor loop 52.
- the security system 48 has a transceiver unit 40 which is connected to the master CPU 18.
- the conductor loop 52 begins with its beginning 58 at the transmitter / receiver unit 40, leads through the rail vehicle 46 to through and ends with its end 60 again at the transceiver unit 40.
- the transceiver unit 40 sends the signals to the beginning 58 of the conductor loop 52. In addition, the transceiver unit 40 receives or detects the signals transmitted via the conductor loop at the end 60 of the conductor loop 52.
- the transmission of the signal can be monitored on the basis of the respective received / detected signal. Furthermore, a property of the transmitted signal can be determined and possibly monitored on the basis of the received / detected signal, such as a frequency and / or an intensity of the transmitted signal.
- the master CPU 18 detects a change in the signal sequence.
- a change in the signal sequence is also recognized by the master CPU 18.
- the master CPU 18 If the master CPU 18 detects a change in the signal sequence, the master CPU 18 initiates a protective reaction. For example, the master CPU 18 stops sending signals when it detects a change in the signal sequence.
- the master CPU 18 can also recognize the warning signal fed in by a control 16. If the master CPU 18 detects a / the warning signal, it can output a warning message and / or stop sending signals.
- the signal transmission system 50 embodied as a conductor loop 52 could be passed through the association (not shown).
- the signal transmission system 50 can be designed as a signal transmission system for multiple safety systems of the rail vehicle 2, each with an automatic protective reaction.
- the signal transmission system 50 embodied as a conductor loop 52 can operate with signals at different frequencies.
- the signals of the various security systems using the (common men) signal transmission system 50 can each be transmitted in the form of electricity at different frequencies.
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- Train Traffic Observation, Control, And Security (AREA)
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DE102019208627.6A DE102019208627A1 (de) | 2019-06-13 | 2019-06-13 | Verfahren zum Betreiben eines Sicherheitssystems eines Schienenfahrzeugs, Sicherheitssystem für ein Schienenfahrzeug und Schienenfahrzeug |
PCT/EP2020/065167 WO2020249417A1 (de) | 2019-06-13 | 2020-06-02 | Verfahren zum betreiben eines sicherheitssystems eines schienenfahrzeugs, sicherheitssystem für ein schienenfahrzeug und schienenfahrzeug |
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DE4339570B4 (de) * | 1993-11-19 | 2004-03-04 | Robert Bosch Gmbh | Elektronisches Bremssystem |
DE102004028390A1 (de) * | 2004-06-14 | 2006-02-02 | Deutsche Bahn Ag | Übertragung von Informationen innerhalb eines Fahrzeugverbandes unter Nutzung einer pneumatischen oder hydraulischen Leitung als Übertragungskanal |
DE102007034799A1 (de) * | 2007-07-23 | 2009-02-05 | Siemens Ag | Verfahren zum statischen Überprüfen eines Bremssystems eines Fahrzeugs |
DE102008027520A1 (de) * | 2008-06-10 | 2010-01-14 | Siemens Aktiengesellschaft | Verfahren für ein Schienenfahrzeug zur Anforderung von Sicherheitsreaktionen |
DE102008030222B4 (de) * | 2008-06-25 | 2016-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Steuergerät und Verfahren zum Betrieb des Steuergeräts sowie KFZ mit derartigem Steuergerät |
DE102009042965A1 (de) * | 2009-09-23 | 2011-03-24 | Siemens Aktiengesellschaft | Bremssystem mit intelligentem Aktuator zum Abbremsen eines schienengeführten Fahrzeugs |
DE102012013520A1 (de) * | 2012-07-06 | 2014-01-09 | Knorr-Bremse Gmbh | Verfahren zum Steuern einer Magnetschienenbremsvorrichtung eines Schienenfahrzeugs |
DE102016111763A1 (de) * | 2016-06-28 | 2017-12-28 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Modulares hydraulisches Bremssystem und ein Verfahren zur Datenübertragung für ein Schienenfahrzeug |
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2019
- 2019-06-13 DE DE102019208627.6A patent/DE102019208627A1/de active Pending
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- 2020-06-02 EP EP20732770.1A patent/EP3983275A1/de active Pending
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DE102019208627A1 (de) | 2020-12-17 |
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