US20130138278A1 - Control method for aerodynamic brake device - Google Patents

Control method for aerodynamic brake device Download PDF

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Publication number
US20130138278A1
US20130138278A1 US13/814,908 US201113814908A US2013138278A1 US 20130138278 A1 US20130138278 A1 US 20130138278A1 US 201113814908 A US201113814908 A US 201113814908A US 2013138278 A1 US2013138278 A1 US 2013138278A1
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United States
Prior art keywords
aerodynamic brake
vehicle
aerodynamic
railway vehicle
advancing direction
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.)
Abandoned
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US13/814,908
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English (en)
Inventor
Tatsuo Fujiwara
Shuting Li
Katsuji Takada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabtesco Corp
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Nabtesco Corp
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Publication date
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Assigned to NABTESCO CORPORATION reassignment NABTESCO CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKADA, KATSUJI, FUJIWARA, TATSUO, LI, SHUTING
Publication of US20130138278A1 publication Critical patent/US20130138278A1/en
Abandoned legal-status Critical Current

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    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
    • B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
    • B61H11/10—Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
    • 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
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/12—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action
    • B60T1/16—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting otherwise than by retarding wheels, e.g. jet action by increasing air resistance, e.g. flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
    • B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes

Definitions

  • the present invention relates to a control method for an aerodynamic brake device used for reducing a speed of a railway vehicle during running.
  • Patent Literature 1 discloses an aerodynamic brake device for a railway vehicle which is less affected by a wind pressure regardless of a running direction when an aerodynamic brake plate is extended.
  • an aerodynamic brake device for generating a braking force by extending an aerodynamic brake plate, a linear guide rail mounted and fixed to a vehicle body and extending in a vertical plane orthogonal to an advancing direction of the vehicle, a linear guide block disposed on the aerodynamic brake plate and slidably engaged with the linear guide rail, and extending means provided between the aerodynamic brake plate and the vehicle body and protruding and extending the aerodynamic brake plate to the outside above or side of the vehicle body.
  • Patent Literature 1 Japanese Patent Laid-Open No. 2003-002194
  • the aerodynamic brake device described in Patent Literature 1 is provided only on one end side of one vehicle (See FIG. 1 in Patent Literature 1). Moreover, in general, a vehicle does not advance only in one direction but when it reciprocates, the opposite direction becomes an advancing direction. In the aerodynamic brake device described in Patent Literature 1, it is described that the vehicle is less affected by a wind pressure regardless of the running direction, but the inventor found that, if the aerodynamic brake device is provided in the rear in the advancing direction from the center part in one vehicle, the aerodynamic brake device gives a bad influence on a riding comfort as will be described later.
  • the aerodynamic brake device described in Patent Literature 1 operates the aerodynamic brake device at the same time, and it was also found that there is a room for improvement in a control method for the aerodynamic brake device from the viewpoint of an air flow around a vehicle formation and from the viewpoint of an influence and the like given to a behavior of the vehicle formation.
  • the present invention has an object to provide a control method for an aerodynamic brake device which can reduce a speed of a vehicle efficiently without badly affecting a riding comfort or a vehicle formation.
  • a control method for an aerodynamic brake device is a control method for an aerodynamic brake device for controlling an operation of an aerodynamic brake plate provided in the front in an advancing direction of a formation from a center part of a part or the whole of vehicles of a formation composed of a plurality of vehicles and includes a step of detecting a speed of the formation and a step of determining an operation of the aerodynamic brake plate in accordance with a deceleration degree generated by the aerodynamic brake device and the speed of the formation.
  • a controller controls the operation of the aerodynamic brake plate provided in the front in the advancing direction of the vehicle from the center part of the vehicle.
  • the aerodynamic brake plate is provided in the front in the advancing direction of the vehicle from the center part of each vehicle, regardless of the shape of the vehicle (particularly the shape of the first vehicle), an air flow can be received the strongest by the aerodynamic brake plate. As a result, performances of the aerodynamic brake plate can be utilized at the maximum. Moreover, since the aerodynamic brake plate is provided in the front in the advancing direction of the vehicle from the center part of each vehicle, vibration given to the vehicle can be reduced, and thus, a bad influence on a riding comfort of a passenger in the vehicle can be prevented. Furthermore, since the operation of the aerodynamic brake plate is determined in accordance with the deceleration degree generated by the aerodynamic brake device and the speed of the formation, the speed of the formation can be reduced efficiently without giving a bad influence on the formation.
  • the operation of the aerodynamic brake plate may include control such that the aerodynamic brake plate of the first vehicle has a larger advancing area than that of the aerodynamic brake plate of the second vehicle in the front in the advancing direction of the first vehicle.
  • the protruding area (projected area of the aerodynamic brake plate when seen from the front of the formation) of the aerodynamic brake plate increases from the front to the rear of the advancing direction of the formation, the aerodynamic brake plate in the rear in the advancing direction is subjected to less influence on the basis of a change in the air flow caused by the aerodynamic brake plate in the front in the advancing direction, and the performances of the aerodynamic brake plate can be exerted efficiently including its responsiveness.
  • the operation of the aerodynamic brake plate may include control of advancing the aerodynamic brake plate of the first vehicle after the advance of the aerodynamic brake plate of the second vehicle in the front in the advancing direction of the first vehicle is started.
  • the operation of the aerodynamic brake plate may include control of advancing the aerodynamic brake plate of the first vehicle after the advance of the aerodynamic brake plate of the second vehicle in the rear in the advancing direction of the first vehicle is started.
  • FIG. 1 is a schematic side view illustrating an example of a railway vehicle according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram illustrating an example of a configuration of a railway vehicle.
  • FIG. 3 is an enlarged side view illustrating a part of the railway vehicle in FIG. 1 .
  • FIG. 4 is a schematic diagram for explaining an operation of an aerodynamic brake plate in the railway vehicle.
  • FIG. 5 is a schematic diagram for explaining an operation of the aerodynamic brake plate in the railway vehicle.
  • FIG. 6 is a flowchart illustrating an example of an operation of a brake controller.
  • FIG. 7 is a schematic operation diagram illustrating an example of a control system in processing at Step S 5 in FIG. 6 .
  • FIG. 8 is a schematic operation diagram illustrating an example of the control system in processing at Step S 5 in FIG. 6 .
  • FIG. 9 is a schematic operation diagram illustrating an example of the control system in processing at Step S 7 in FIG. 6 .
  • FIG. 10 is a schematic operation diagram illustrating an example of the control system in processing at Step S 7 in FIG. 6 .
  • FIG. 11 is a schematic diagram if an aerodynamic brake plate is provided in the front in an advancing direction from a center part of a vehicle.
  • FIG. 12 is a schematic diagram if the aerodynamic brake plate is provided at the center part of the vehicle.
  • FIG. 13 is a schematic diagram if the aerodynamic brake plate is provided in a direction opposite to the advancing direction from the center part of the vehicle.
  • FIG. 14 is a schematic diagram illustrating a result by CFD analysis.
  • FIG. 15 is a schematic diagram illustrating a result by CFD analysis.
  • FIG. 16 is a schematic diagram illustrating a result by CFD analysis.
  • FIG. 17 is a schematic side view illustrating another example of the aerodynamic brake device of the railway vehicle.
  • FIG. 18 is a schematic side view illustrating still another example of the aerodynamic brake device of the railway vehicle.
  • FIG. 19 is a schematic side view illustrating still another example of the aerodynamic brake device of the railway vehicle.
  • FIG. 20 is a schematic side view illustrating still another example of the aerodynamic brake device of the railway vehicle.
  • FIG. 21 is a schematic side view illustrating still another example of the aerodynamic brake device of the railway vehicle.
  • FIG. 1 is a schematic side view illustrating an example of a railway vehicle 100 according to an embodiment of the present invention.
  • the railway vehicle 100 is a formation of vehicles running on a rail L and is composed of 8 vehicles, that is, a vehicle 201 to a vehicle 208 .
  • the vehicle 201 to the vehicle 208 are coupled by couplers 211 to 217 , respectively.
  • the railway vehicle 100 is assumed to run in an advancing direction H 1 on the rail L in the description. Therefore, the first vehicle in the railway vehicle 100 is the vehicle 201 , and the last vehicle is the vehicle 208 .
  • FIG. 2 is a schematic diagram illustrating an example of the configuration of the railway vehicle 100 and
  • FIG. 3 is an enlarged side view illustrating a part of the railway vehicle 100 in FIG. 1 .
  • the railway vehicle 100 includes a brake controller 500 for calculating a brake force on the basis of an instruction of a deceleration degree or the like mainly from a higher system, a regenerative/dynamic brake device 530 utilizing a powering motor, a disk brake device 540 using a pneumatic cylinder as a power source and generating a brake force by sandwiching a brake disk by a brake caliper through a brake pad, an aerodynamic brake device 550 utilizing aerodynamic resistance, and a powering motor, not shown.
  • the brake controller 500 has a speedometer 560 for recognizing a vehicle speed of the railway vehicle 100 .
  • the brake controller 500 has the speedometer 560 , but that is not limiting, and the vehicle speed may be recognized on the basis of a speed signal from a higher system of the vehicle, not shown, or a method of independently recognizing the vehicle speed by detecting a revolution speed of a vehicle's wheel by a sensor, not shown, may be used.
  • the brake controller 500 operates the regenerative/dynamic brake device 530 and the aerodynamic brake device 550 if the speed of the railway vehicle 100 running at a high speed is to be reduced.
  • the brake controller 500 operates only the regenerative/dynamic brake device 530 when the speed of the railway vehicle 100 has fallen to a predetermined high speed.
  • the brake controller 500 operates only the disk brake device 540 using compressed air if the railway vehicle 100 at a low speed is to be stopped.
  • the brake controller 500 operates all of the regenerative/dynamic brake device 530 , the aerodynamic brake device 550 , and the disk brake device 540 using compressed air as necessary.
  • the aerodynamic brake device 550 is provided with driving portions 501 to 508 and 601 to 608 and aerodynamic brake plates 301 to 308 and 401 to 408 .
  • the driving portions 501 to 508 and 601 to 608 have a pneumatic driving source.
  • the driving portions 501 to 508 and 601 to 608 are assumed to use a driving source using a pneumatic pressure but that is not limiting, and a driving source using an electric motor, a fluid pressure such as an oil pressure, a driving source using an explosive force by gunpowder and the like or any other arbitrary devices can be applied.
  • the driving portion 501 and the aerodynamic brake plate 301 are provided on the advancing direction H 1 side of the vehicle 201
  • the driving portion 601 and the aerodynamic brake plate 401 are provided on the ⁇ H 1 side opposite to the advancing direction H 1 of the vehicle 201 .
  • the aerodynamic brake plates 301 and 401 are built in the vehicle 201 and are constructed to protrude to the outside of the vehicle 201 in an advancing operation. That is, the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 are arranged in a state not protruding to the outside of the vehicle when seen from the front of the formation so that they are not subjected to air resistance during ordinary running.
  • the driving portion 502 and the aerodynamic brake plate 302 are provided on the advancing direction H 1 side of the vehicle 202
  • the driving portion 602 and the aerodynamic brake plate 402 are provided on the ⁇ H 1 side opposite to the advancing direction H 1 of the vehicle 202 .
  • the driving portion 501 drives advancing and retreating operations of the aerodynamic brake plate 301 on the basis of an instruction of the brake controller 500 .
  • the driving portion 601 drives the advancing and retreating operations of the aerodynamic brake plate 401 on the basis of the instruction of the brake controller 500 .
  • the driving portion 503 drives the advancing and retreating operations of the aerodynamic brake plate 303 on the basis of the instruction of the brake controller 500 and the driving portion 603 drives the advancing and retreating operations of the aerodynamic brake plate 403 on the basis of the instruction of the brake controller 500 .
  • FIGS. 4 and 5 are schematic diagrams for explaining operations of the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 in the railway vehicle 100 .
  • FIGS. 11 to 16 are schematic diagrams for explaining operations of the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 in the railway vehicle 100 .
  • the operations will be described, and the reasons thereof will be described in FIGS. 11 to 16 .
  • the brake controller 500 gives an instruction to the driving portion 501 in order to advance the aerodynamic brake plate 301 located on the advancing direction H 1 side from the center part of the vehicle 201 of the railway vehicle 100 .
  • the brake controller 500 gives an instruction to the driving portions 502 to 508 also in the vehicles 202 to 208 so as to advance the aerodynamic brake plates 302 to 308 .
  • the brake controller 500 gives an instruction to the driving portion 601 of the vehicle 201 of the railway vehicle 100 so as to advance the aerodynamic brake plate 401 .
  • the brake controller 500 gives an instruction to the driving portions 602 to 608 in the vehicles 202 to 208 so as to advance the aerodynamic brake plates 402 to 408 .
  • FIG. 6 is a flowchart illustrating an example of the operation of the brake controller 500 .
  • the brake controller 500 obtains vehicle formation information (N vehicles) (Step S 1 ). That is, in the railway vehicle 100 , if N in the vehicle formation information becomes large, a large brake force is required in order to obtain the same deceleration degree.
  • the vehicle formation information (N vehicles) the number of vehicles on which the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 are mounted is also included, and this information is used for determining how much of the brake force is borne by each of the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 .
  • the brake controller 500 determines if a braking instruction has been received or not (Step S 2 ).
  • the braking instruction is based on a brake operation by an operator of the railway vehicle 100 , for example, and includes a targeted deceleration degree of the entire formation. If it is determined that a braking instruction has not been received, the brake controller 500 repeats the processing at Step S 2 .
  • the brake controller 500 obtains a speed of the railway vehicle 100 from the speedometer 560 (Step S 3 ).
  • the speedometer 560 measures a speed with respect to the advancing direction H 1 .
  • the brake controller 500 obtains the speed from the speedometer 560 .
  • the brake controller 500 continuously obtains a vehicle speed if a braking instruction is received and utilizes it for selection of the control system, but that is not limiting, and the vehicle speed may be a speed immediately before or immediately after the braking instruction is received.
  • the brake controller 500 calculates a braking force for stopping the railway vehicle 100 from the braking instruction including the deceleration degree of the entire formation, the vehicle formation information (N vehicles) and the vehicle speed and determines whether the calculated braking force is not less than a predetermined value or not (Step S 4 ).
  • the predetermined value is a threshold value for determining whether it is likely that the vehicle or the coupler of the vehicle or the like is affected or not.
  • the braking forces generated by the regenerative/dynamic brake device 530 , the disk brake device 540 , and the pneumatic brake device 550 , respectively, are also determined.
  • Step S 5 If it is determined that the braking force is not less than the predetermined value (Yes at Step S 4 ), the brake controller 500 selects the control system (Step S 5 ).
  • the brake controller 500 selects the control system (each brake device and its control method or a combination thereof) from a table determined in advance in accordance with the value of the calculated braking force.
  • FIGS. 7 and 8 are schematic operation diagrams illustrating an example of the control system in the processing at Step S 5 in FIG. 6 .
  • FIGS. 7( a ) to 7 ( d ) and 8 ( e ) to 8 ( g ) if the railway vehicle 100 is running in the advancing direction H 1 , it is assumed that a control system is selected in which the pneumatic brake device 550 as a brake device, and a control method of performing the advancing operation in the order of the aerodynamic brake plates 308 , 307 , 306 , 305 , 304 , 303 , 302 , and 301 are used from the vehicle 208 to the vehicle 201 .
  • the brake controller 500 sequentially gives instructions from the last vehicle to the first vehicle of the railway vehicle 100 in the order of the driving portion 508 of the vehicle 208 , the driving portion 507 of the vehicle 207 , the driving portion 506 of the vehicle 206 , the driving portion 505 of the vehicle 205 , the driving portion 504 of the vehicle 204 , the driving portion 503 of the vehicle 203 , the driving portion 502 of the vehicle 202 , and the driving portion 501 of the vehicle 201 (See Step S 6 in FIG. 6) .
  • the aerodynamic brake plates 308 , 307 , 306 , 305 , 304 , 303 , 302 , and 301 sequentially perform the advancing operation.
  • the braking force or responsiveness is somewhat poorer than a control method which will be described later, the braking force is sequentially applied from the last vehicle to the first vehicle if the railway vehicle 100 is running at a high speed or has a long formation, and a bad influence on the behavior of the formation can be prevented.
  • Step S 7 if it is determined that the braking force is not more than the predetermined value (No at Step S 4 ), the brake controller 500 selects a control system (Step S 7 ).
  • the brake controller 500 selects a control system (each brake device and a control method thereof or a combination thereof) from table data determined in advance in accordance with the value of the calculated braking force.
  • FIGS. 9 and 10 are schematic operation diagrams illustrating an example of a control system in the processing at Step S 7 in FIG. 6 .
  • FIGS. 9( a ) to 9 ( d ) and FIGS. 9( e ) to 9 ( g ) if the railway vehicle 100 is running in the advancing direction H 1 , it is assumed that a control system is selected in which the pneumatic brake device 550 as the brake device and the control system of performing the advancing operation in the order of the aerodynamic brake plates 301 to 308 from the vehicle 201 to the vehicle 208 as a control method are used.
  • the brake controller 500 sequentially gives instructions from the first vehicle to the last vehicle of the railway vehicle 100 in the order of the driving portion 501 of the vehicle 201 , the driving portion 502 of the vehicle 202 , the driving portion 503 of the vehicle 203 , the driving portion 504 of the vehicle 204 , the driving portion 505 of the vehicle 205 , the driving portion 506 of the vehicle 206 , the driving portion 507 of the vehicle 207 , and the driving portion 508 of the vehicle 208 (See Step S 8 in FIG. 6) .
  • the aerodynamic brake plates 301 to 308 sequentially perform the advancing operation.
  • the braking force is sequentially applied from the first vehicle to the last vehicle of the railway vehicle 100 , and a desired deceleration degree can be obtained early while rapid deceleration is avoided, and the railway vehicle 100 can be reliably decelerated.
  • the brake controller 500 determines whether the railway vehicle 100 is at a speed not more than a predetermined value or not (Step S 9 ).
  • the speed of the predetermined value may be a speed at which the vehicle can be stopped within a predetermined distance only by the regenerative/dynamic brake device 530 and the disk brake device 540 or may be a substantially or fully stop speed (0 km/h).
  • Step S 9 If it is determined that the speed of the railway vehicle 100 exceeds a speed of a predetermined value, the brake controller 500 repeats the processing from Step S 3 again (No at Step S 9 ). On the other hand, if it is determined that the speed of the railway vehicle 100 is not more than the speed of the predetermined value, the processing is finished (Yes at Step S 9 ).
  • the aerodynamic brake device 550 is described in selection of the control system at Steps S 5 and S 7 in FIG. 4 , but the regenerative/dynamic brake device 530 and the disk brake device 540 may be arbitrarily combined with the aerodynamic brake device 550 and operated.
  • the aerodynamic brake device 550 is operated until the vehicle speed of the railway vehicle 100 reaches the speed not more than the predetermined value is described, but that is not limiting, and the aerodynamic brake device 550 may be operated only for predetermined time or the aerodynamic brake device 550 may be operated intermittently.
  • FIG. 11 is a schematic diagram of a case in which the aerodynamic brake plate 301 is provided in the front in the advancing direction from the center part of the vehicle 201
  • FIG. 12 is a schematic diagram of a case in which the aerodynamic brake plate 301 is provided at the center part of the vehicle 201
  • FIG. 13 is a schematic diagram of a case in which the aerodynamic brake plate 301 is provided in the direction opposite to the advancing direction from the center part of the vehicle 201 .
  • FIGS. 14 to 16 are schematic diagrams illustrating results by CFD analysis.
  • the vertical axes in FIGS. 14 to 16 indicate an air resistance force (kN) and the horizontal axes indicate time (ms).
  • Lines in FIGS. 14 to 16 indicate a resultant force of a force on the resistance side applied on the aerodynamic brake plate 301 (force applied on the surface in the advancing direction H 1 ) and a force on the detachment side (force applied on the back surface in the advancing direction H 1 ).
  • the resultant force applied on the aerodynamic brake plate 301 largely fluctuates vertically at a position of 900 ms on the time axis (horizontal axis).
  • This fluctuation in the resultant force applied on the aerodynamic brake plate 301 indicates that the vehicle 201 is vibrated.
  • a bad influence is given to riding comfort and moreover, as the result of wasteful consumption of energy obtained from air resistance by the vibration, the effect of the aerodynamic brake plate 301 cannot be expected to the maximum.
  • each of the aerodynamic brake plates 301 to 308 is provided in the front in the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 to 208 of the railway vehicle 100 , if the railway vehicle is running in the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 301 to 308 . As a result, the brake force generated in the aerodynamic brake plates 301 to 308 can be efficiently utilized.
  • each of the aerodynamic brake plates 401 to 408 is provided in the direction ⁇ H 1 opposite to the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 to 208 of the railway vehicle 100 , if the railway vehicle is running in the direction ⁇ H 1 opposite to the advancing direction H 1 , the air flow can be received the strongest in aerodynamic brake plates 401 d to 408 d. As a result, performances of the aerodynamic brake plates 401 to 408 can be efficiently utilized.
  • FIG. 17 is a schematic side view illustrating another example of the aerodynamic brake device 550 of the railway vehicle 100
  • FIG. 18 is a schematic side view illustrating still another example of the aerodynamic brake device 550 of the railway vehicle 100 .
  • an aerodynamic brake device 550 a in a railway vehicle 100 a is provided with aerodynamic brake plates 301 a to 308 a and aerodynamic brake plates 401 a to 408 a.
  • the aerodynamic brake plate 308 a is provided so as to perform the advancing operation larger than any of the aerodynamic brake plates 301 a to 307 a.
  • the length of the aerodynamic brake plate 308 a may be longer or an advancing/retreating amount may be adjusted so as to advance/retreat the longest by the driving portion 508 .
  • the aerodynamic brake plate 307 a is provided longer than any of the aerodynamic brake plates 301 a to 306 a. As described above, the aerodynamic brake plates 301 a to 306 a are provided so that the length of the aerodynamic brake plate becomes longer sequentially in the order of the aerodynamic brake plates 301 a to 306 a, and the uppermost points of a state where the aerodynamic brake plates 301 a to 308 a are advanced have a relationship of a straight line ST.
  • the aerodynamic brake plate 401 a is provided longer than any of the aerodynamic brake plates 402 a to 408 a. Then, the aerodynamic brake plate 402 a is provided longer than any of the aerodynamic brake plates 403 a to 408 a. As described above, the aerodynamic brake plates 401 a to 408 a are provided so that the lengths of the aerodynamic brake plates 401 a to 408 a become shorter sequentially in the order of the aerodynamic brake plates 401 a to 408 a.
  • an aerodynamic brake device 550 b in a railway vehicle 100 b is provided with aerodynamic brake plates 301 b to 308 b and aerodynamic brake plates 401 b to 408 b.
  • FIG. 18 has a configuration similar to that of FIG. 17 , the upmost points in a state where the aerodynamic brake plates 301 b to 308 b and the aerodynamic brake plates 401 b to 408 b are advanced have a relationship of a quadratic curve RT.
  • a brake controller 500 a or a brake controller 500 b since the aerodynamic brake plates 301 a to 308 a or the aerodynamic brake plates 301 b to 308 b are provided in the front in the advancing direction H 1 of the vehicle from the center part of each of vehicles 201 a to 208 a or each of vehicles 201 b to 208 b of the railway vehicle 100 a or the railway vehicle 100 b, if the railway vehicle is running in the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 301 a to 308 a. As a result, the brake force that can be generated by the aerodynamic brake plates 301 a to 308 a can be utilized efficiently.
  • the aerodynamic brake plates 401 a to 408 a or the aerodynamic brake plates 401 b to 408 b are provided in the direction ⁇ H 1 opposite to the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 a to 208 a or each of the vehicles 201 b to 208 b of the railway vehicle 100 a or the railway vehicle 100 b, if the railway vehicle is running in the direction ⁇ H 1 opposite to the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 401 a to 408 a or in the aerodynamic brake plates 401 b to 408 b. As a result, the brake force that can be generated by the aerodynamic brake plates 401 a to 408 a or the aerodynamic brake plates 401 b to 408 b can be utilized efficiently.
  • FIG. 19 is a schematic top view illustrating still another example of the aerodynamic brake device 550 of the railway vehicle 100 .
  • an aerodynamic brake device 550 c in a railway vehicle 100 c is provided with aerodynamic brake plates 301 c to 308 c and aerodynamic brake plates 401 c to 408 c.
  • the aerodynamic brake plates 301 c to 308 c perform the advancing operation, while in the case of running in the direction ⁇ H 1 opposite to the advancing direction H 1 and the braking force is needed, the aerodynamic brake plates 401 c to 408 c perform the advancing operation.
  • the aerodynamic brake plate 301 c is provided in plural on the side of the vehicle 201 c when seen from the top face of the vehicle 201 c.
  • the aerodynamic brake plate 302 c is provided at the center part of the vehicle 202 c when seen from the top face of the vehicle 201 c. That is, when seen from the advancing direction H 1 to the rear, the aerodynamic brake plate 301 c and the aerodynamic brake plate 302 c are arranged so as not to overlap each other.
  • the aerodynamic brake plates 301 c to 308 c are controlled so as to shift when seen from the front to the rear in the advancing direction H 1 of the railway vehicle 100 c, the aerodynamic brake plate in the rear in the advancing direction is less affected by the aerodynamic brake plate in the front in the advancing direction, and even if a plurality of vehicles are formed, the performances of the aerodynamic brake plates 301 c to 308 c can be utilized to the maximum.
  • a brake controller 500 c since each of the aerodynamic brake plates 301 c to 308 c is provided in the front in the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 c to 208 c of the railway vehicle 100 c, if the railway vehicle is running in the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 301 c to 308 c. As a result, the brake force that can be generated by the aerodynamic brake plates 301 c to 308 c can be utilized efficiently.
  • each of the aerodynamic brake plates 401 c to 408 c is provided in the direction ⁇ H 1 opposite to the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 c to 208 c of the railway vehicle 100 c, if the railway vehicle is running in the direction ⁇ H 1 opposite to the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 401 dc to 408 d. As a result, the brake force that can be generated by the aerodynamic brake plates 401 to 408 can be utilized efficiently.
  • vibration given to each of the vehicles 201 c to 208 c can be reduced, a bad influence on riding comfort of passengers in each of the vehicles 201 c to 208 c can be prevented.
  • FIGS. 20 and 21 explain still another example of the aerodynamic brake device 550 in the railway vehicle 100 .
  • FIGS. 20 and 21 are schematic side views illustrating still another example of the aerodynamic brake device 550 of the railway vehicle 100 .
  • FIG. 20 illustrates a case in which a railway vehicle 100 d is running in the advancing direction H 1 and the braking force is needed
  • FIG. 21 illustrates a case in which the railway vehicle 100 d is running in the direction ⁇ H 1 opposite to the advancing direction H 1 and the braking force is needed.
  • an aerodynamic brake device 550 d in the railway vehicle 100 d is provided with aerodynamic brake plates 301 d to 308 d and aerodynamic brake plates 401 d to 408 d.
  • the aerodynamic brake plates 401 d to 408 d are rotated in a direction of an arrow ⁇ R 1 around shafts 411 d to 418 d. As a result, air resistance works, and the braking force can be obtained.
  • the aerodynamic brake plates 301 d to 308 d and the aerodynamic brake plates 401 d to 408 d are rotated around the shafts 311 d to 318 d and the shafts 411 d to 418 d by hydraulic driving like a flap of an aircraft.
  • the projecting areas (projected area of the aerodynamic brake plate when seen from the front in the formation) of the aerodynamic brake plates 301 d to 308 d and the aerodynamic brake plates 401 d to 408 d can be arbitrarily set.
  • the running of the railway vehicle 100 is assumed to be on the straight rail L, but that is not limiting, and in the case of a curve, the aerodynamic brake device 550 may execute control by considering a balance between right and left in the vehicles 201 to 208 . As a result, a stop operation can be realized considering a moment (a centrifugal force) applied on the railway vehicle 100 .
  • the explanation was made assuming that the railway vehicle 100 is running on the rail by wheels, but that is not limiting, and it may be a magnetically-levitated railway vehicle, for example.
  • the brake controller 500 d since the aerodynamic brake plates 301 d to 308 d are provided in the front in the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 d to 208 d of the railway vehicle 100 d, if the railway vehicle is running in the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 301 d to 308 d. As a result, the brake force that can be generated by the aerodynamic brake plates 301 d to 308 d can be utilized to the maximum.
  • each of the aerodynamic brake plates 401 d to 408 d is provided in the direction ⁇ H 1 opposite to the advancing direction H 1 of the vehicle from the center part of each of the vehicles 201 d to 208 d of the railway vehicle 100 d, if the railway vehicle is running in the direction ⁇ H 1 opposite to the advancing direction H 1 , the air flow can be received the strongest in the aerodynamic brake plates 401 d to 408 d. As a result, the brake force that can be generated by the aerodynamic brake plates 401 d to 408 d can be utilized efficiently.
  • vibration given to each of the vehicles 201 d to 208 d can be reduced, a bad influence on riding comfort of passengers in each of the vehicles 201 d to 208 d can be prevented.
  • any one of the vehicles 201 to 208 corresponds to a vehicle
  • the aerodynamic brake device 550 corresponds to an aerodynamic brake device
  • the advancing direction H 1 corresponds to an advancing direction
  • the aerodynamic brake plates 301 to 308 and the aerodynamic brake plates 401 to 408 correspond to aerodynamic brake plates
  • the brake controller 500 and the driving portions 501 to 508 and 601 to 608 correspond to a controller
  • the speedometer 560 corresponds to a speed detecting device
  • the vehicles 201 to 208 and the couplers 211 to 216 or the railway vehicle 100 correspond to a vehicle formation.
  • a preferred embodiment of the present invention is as described above, but the present invention is not limited to that. It should be understood that various other embodiments can be made without departing from the sprint and range of the present invention. Moreover, in this embodiment, actions and effects by the configuration of the present invention are described but these actions and effects are examples and do not limit the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Regulating Braking Force (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Braking Arrangements (AREA)
US13/814,908 2010-08-11 2011-07-28 Control method for aerodynamic brake device Abandoned US20130138278A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010179947 2010-08-11
JP2010-179947 2010-08-11
PCT/JP2011/004291 WO2012020549A1 (ja) 2010-08-11 2011-07-28 空力ブレーキ装置の制御方法

Publications (1)

Publication Number Publication Date
US20130138278A1 true US20130138278A1 (en) 2013-05-30

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US13/814,908 Abandoned US20130138278A1 (en) 2010-08-11 2011-07-28 Control method for aerodynamic brake device

Country Status (6)

Country Link
US (1) US20130138278A1 (ja)
EP (1) EP2604483A1 (ja)
JP (1) JPWO2012020549A1 (ja)
KR (1) KR20130061169A (ja)
CN (1) CN103068645A (ja)
WO (1) WO2012020549A1 (ja)

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DE102013221551A1 (de) * 2013-10-23 2015-04-23 Siemens Aktiengesellschaft Verfahren zum zeitweiligen Erhöhen eines Luftwiderstands eines wenigstens zwei aneinandergekoppelte Wagenkästen aufweisenden Schienenfahrzeugs
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JP5824295B2 (ja) * 2011-08-30 2015-11-25 公益財団法人鉄道総合技術研究所 空力ブレーキを有する鉄道車両
CN103121443A (zh) * 2011-11-19 2013-05-29 李忠华 快速制动总成
JP5730803B2 (ja) * 2012-03-22 2015-06-10 公益財団法人鉄道総合技術研究所 鉄道車両用空力ブレーキ装置、及び鉄道車両
CN103213599A (zh) * 2013-03-06 2013-07-24 北京航空航天大学 一种用于高速列车的风阻制动装置
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CN107985332A (zh) * 2017-09-13 2018-05-04 同济大学 一种高速磁浮列车安全制动系统
CN108909767A (zh) * 2018-06-28 2018-11-30 中车青岛四方机车车辆股份有限公司 磁浮列车及其制动装置
CN109683521B (zh) * 2018-12-21 2020-11-10 合肥欣奕华智能机器有限公司 一种电控系统及制动控制方法
CN109849873B (zh) * 2019-01-17 2022-02-08 同济大学 一种用于轨道车辆制动的伞状风阻板结构
US11548485B2 (en) * 2020-02-11 2023-01-10 Ford Global Technologies, Llc Electrified vehicle configured to address excess braking request by selectively increasing drag
CN112373507B (zh) * 2020-10-22 2023-03-21 南京铁道职业技术学院 一种高速列车辅助减速装置
CN112590835B (zh) * 2020-12-30 2022-06-28 中国科学院力学研究所 一种高速列车横风效应控制装置
CN113978507A (zh) * 2021-11-16 2022-01-28 西南交通大学 一种高速轨道车辆车端连接处风阻制动装置
CN113911164A (zh) * 2021-11-19 2022-01-11 中车长春轨道客车股份有限公司 高速超导电动磁悬浮列车的制动控制方法、装置和列车

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US11208125B2 (en) * 2016-08-08 2021-12-28 Transportation Ip Holdings, Llc Vehicle control system

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CN103068645A (zh) 2013-04-24
JPWO2012020549A1 (ja) 2013-10-28
WO2012020549A1 (ja) 2012-02-16
KR20130061169A (ko) 2013-06-10
EP2604483A1 (en) 2013-06-19

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