WO2013137296A1 - 鉄道車両用制振装置 - Google Patents
鉄道車両用制振装置 Download PDFInfo
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- WO2013137296A1 WO2013137296A1 PCT/JP2013/056948 JP2013056948W WO2013137296A1 WO 2013137296 A1 WO2013137296 A1 WO 2013137296A1 JP 2013056948 W JP2013056948 W JP 2013056948W WO 2013137296 A1 WO2013137296 A1 WO 2013137296A1
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- WIPO (PCT)
- Prior art keywords
- side chamber
- vibration suppression
- railway vehicle
- valve
- suppression force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/12—Bolster supports or mountings incorporating dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
- B61F5/245—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/10—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor in which the servomotor position is a function of the pressure also pressure regulators as operating means for such systems, the device itself may be a position indicating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
- F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
- F15B2211/3051—Cross-check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
- F15B2211/3058—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve having additional valves for interconnecting the fluid chambers of a double-acting actuator, e.g. for regeneration mode or for floating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
- F15B2211/513—Pressure control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5159—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/04—Frequency effects
Definitions
- This invention relates to vibration suppression during a curve run for a railway vehicle.
- a rail vehicle vibration damping device that suppresses vibration of a vehicle body in the left-right direction with respect to the traveling direction of the rail vehicle includes, for example, a damping force variable damper interposed between the vehicle body and the carriage. Obtain the damping force required to suppress vehicle vibration from the angular velocity in the yaw direction of the vehicle body and the velocity in the sway direction at the center of the vehicle body, and adjust the damping force of the damping force variable damper so that the calculated damping force can be exhibited. ing.
- the damping force necessary to suppress vibration in the yaw direction is calculated by multiplying the yaw rate by the distance from the vehicle center to the center of the carriage and the control gain. Further, the damping force necessary to suppress the vibration in the sway direction is calculated by multiplying the speed in the sway direction by the control gain.
- the damping force to be generated by the damping force variable damper is calculated by adding the damping force for suppressing the yaw direction vibration and the damping force for suppressing the sway direction vibration.
- JP2003-320931A issued by the Japan Patent Office suppresses vibrations in the yaw and sway directions between the body of a railway vehicle and a carriage that supports the front of the body and between the carriage and the carriage that supports the rear of the body. It is proposed to provide each damping force variable damper.
- the resonance frequency band of the vehicle body in a railway vehicle is from 0.5 hertz (Hz) to 2 Hz. Further, when the railway vehicle travels in a curved section, centrifugal acceleration acts on the vehicle body, but the frequency of this centrifugal acceleration is very close to the resonance frequency of the vehicle body.
- acceleration sensors provided at the front and rear of the vehicle body are used.
- the yaw rate is obtained based on the difference in acceleration obtained by the acceleration sensor.
- the speed in the sway direction is obtained based on a value obtained by adding two accelerations obtained by the acceleration sensor.
- An object of the present invention is to improve the riding comfort of a railway vehicle in a curved section.
- a vibration damping device for a railway vehicle includes two or more vibration suppression force generation sources interposed between a carriage and a vehicle body of the railway vehicle, and a lateral speed of the vehicle body. And a programmable controller that controls the vibration suppression force generation source.
- the controller extracts the frequency component equal to or higher than the frequency of centrifugal acceleration that acts on the vehicle body when the railway vehicle runs in a curved section from the lateral velocity of the vehicle body, and calculates the high-frequency vibration suppression force based on the extracted frequency component of the lateral velocity.
- the railway vehicle is traveling in a curved section, it is programmed to output a high-frequency vibration suppression force to at least a part of the vibration suppression force generation source and to function all the remaining vibration suppression force generation sources as passive dampers.
- FIG. 1 is a schematic plan view of a main part of a railway vehicle equipped with a railcar damping device according to an embodiment of the present invention.
- FIG. 2 is a hydraulic circuit diagram of an actuator provided in the railcar damping device.
- FIG. 3 is a block diagram showing a part of the control function of the control device provided in the railcar vibration damping device.
- FIG. 4 is a block diagram showing the remaining part of the control function of the control device.
- a railcar damping device 1 according to an embodiment of the present invention is used as a damping device for a vehicle body B of a railcar.
- the railway vehicle vibration damping device 1 includes hydraulic actuators A1 and A2 interposed between a bogie T and a vehicle body B of a railway vehicle, and a control device C that actively controls the actuators A1 and A2.
- One end of each actuator A1 and A2 is connected to a pin P projecting from the vehicle body B in the front-rear direction, and the other end is connected to the carriage T.
- the control device C suppresses horizontal vibration of the vehicle body B in the vehicle transverse direction by actively controlling the actuators A1 and A2, in other words, by causing the actuators A1 and A2 to function as active dampers.
- the control device C detects the horizontal acceleration ⁇ of the vehicle body B in the vehicle transverse direction, and calculates a low frequency vibration suppression force FL and a high frequency vibration suppression force FH necessary for suppressing the vibration of the vehicle body B based on the horizontal acceleration ⁇ .
- Control device C determines whether the section in which the railway vehicle is traveling is a curved section or other than a curved section.
- control device C causes the actuator A1 to exhibit the high-frequency vibration suppression force FH and causes the actuator A2 to exhibit the low-frequency vibration suppression force FS.
- the control device C causes the actuator A1 to exhibit the high-frequency vibration suppression force FH, and causes the actuator A2 to function as a passive damper.
- actuators A1 and A2 Specific configurations of the actuators A1 and A2 will be described below. Since these actuators A1 and A2 have the same configuration, for the sake of convenience, only the configuration of the actuator A1 will be described and description of the other actuators A2 will be omitted for the sake of convenience.
- the actuator A1 is a single rod type actuator.
- the actuator A1 has a cylinder 2 connected to one of the bogie T and the vehicle body B of the railway vehicle, a piston 3 slidably accommodated in the cylinder 2, one end coupled to the piston 3, and the other end a bogie. T and the rod 4 connected with the other of the vehicle body B are provided.
- the inside of the cylinder 2 is defined by a piston 3 into a rod side chamber 5 and a piston side chamber 6. Hydraulic oil is enclosed in the rod side chamber 5 and the piston side chamber 6.
- a hydraulic oil tank 7 is provided outside the actuator A1. The tank 7 is filled with gas in addition to hydraulic oil. However, the tank 7 does not need to be in a pressurized state by compressing and filling the gas.
- the rod side chamber 5 and the piston side chamber 6 are connected by a first passage 8.
- a first opening / closing valve 9 is provided in the first passage 8.
- the piston side chamber 6 and the tank 7 are connected by a second passage 10.
- a second opening / closing valve 11 is provided in the second passage 10.
- the rod side chamber 5 is supplied with hydraulic oil from the pump 12.
- the first passage 8 communicates the rod side chamber 5 and the piston side chamber 6 outside the cylinder 2, but the first passage 8 may be provided in the piston 3.
- Actuator A1 opens the first on-off valve 9 to bring the first passage 8 into communication, closes the second on-off valve 11 to shut off the second passage, and operates to extend by operating the pump 12.
- the actuator A1 opens the second on-off valve 11 to bring the second passage 10 into a communicating state, closes the first on-off valve 9 and puts the first passage 8 into a shut-off state, and operates to contract by operating the pump 12. .
- the cylinder 2 has a cylindrical shape, the end on the right side in the figure is closed by a lid 13, and an annular rod guide 14 is fixed to the end on the left side in the figure.
- the rod guide 14 slidably supports the rod 4 inserted into the cylinder 2.
- One end of the rod 4 projects axially outward from the cylinder 2, and the other end of the rod 4 is coupled to the piston 3 in the cylinder 2.
- the space between the outer periphery of the rod 4 and the cylinder 2 is sealed by a sealing member, and the inside of the cylinder 2 is maintained in a sealed shape.
- the rod side chamber 5 and the piston side chamber 6 defined by the piston 3 in the cylinder 2 are filled with hydraulic oil as described above. In addition to hydraulic fluid, any liquid suitable for the actuator may be used.
- the cross-sectional area of the rod 4 is set to one half of the cross-sectional area of the piston 3.
- the pressure receiving area on the rod side chamber 5 side of the piston 3 is half of the pressure receiving area on the piston side chamber 6 side. If the pressure in the rod side chamber 5 is made equal during the extension operation and the contraction operation of the actuator A1, the generated thrust becomes equal for both expansion and contraction. Further, the amount of hydraulic oil supplied with respect to the displacement amount of the actuator A1 is also equal in both directions of expansion and contraction.
- the actuator A1 when the actuator A1 is extended, the rod side chamber 5 and the piston side chamber 6 are in communication with each other. As a result, the pressures in the rod side chamber 5 and the piston side chamber 6 become equal, and an expansion side thrust is generated by multiplying the difference between the pressure receiving area in the rod side chamber 5 of the piston 3 and the pressure receiving area in the piston side chamber 6 side.
- the actuator A1 when the actuator A1 is contracted, the communication between the rod side chamber 5 and the piston side chamber 6 is cut off, and the piston side chamber 6 is opened to the tank 7. As a result, a contraction side thrust is generated by multiplying the pressure in the rod side chamber 5 and the pressure receiving area of the rod 3 in the piston 3. In this way, the thrust generated by the actuator A1 is a value obtained by multiplying one half of the cross-sectional area of the piston 3 by the pressure in the rod side chamber 5 in both expansion and contraction.
- the control device C controls the thrust of the actuator A1
- the pressure receiving area on the rod side chamber 5 side of the piston 3 is set to one half of the pressure receiving area on the piston side chamber 6 side
- the pressure in the rod side chamber 5 for generating the same thrust in both expansion and contraction directions is equal in both expansion and contraction directions. Therefore, control becomes easy.
- the amount of hydraulic oil supplied with respect to the displacement of the piston 3 is also equal regardless of the direction of displacement. Therefore, the same responsiveness can be obtained with respect to the operation in both the expansion and contraction directions. Even when the pressure receiving area in the rod side chamber 5 of the piston 3 is not set to one half of the pressure receiving area in the piston side chamber 6, the thrust on both sides of the expansion and contraction of the actuator A1 is controlled by the pressure in the rod side chamber 5. .
- the lid 13 that closes the distal end of the rod 4 and the proximal end of the cylinder 2 includes a mounting portion (not shown).
- the actuator A1 is interposed between the vehicle body B and the carriage T of the railway vehicle via the mounting portion.
- the first on-off valve 9 is composed of an electromagnetic on-off valve.
- the first on-off valve 9 includes a valve body 9a, a spring 9d, and a solenoid 9e.
- the valve body 9 a includes a communication position 9 b that opens the first passage 8 and communicates the rod-side chamber 5 and the piston-side chamber 6, and a blocking position 9 c that blocks communication between the rod-side chamber 5 and the piston-side chamber 6.
- the spring 9d biases the valve body 9a toward the blocking position 9c.
- the solenoid 9e drives the valve body 9a to the communication position 9b against the spring 9d by excitation.
- the second on-off valve 11 is composed of an electromagnetic on-off valve.
- the second on-off valve 11 includes a valve body 11a, a spring 11d, and a solenoid 11e.
- the valve body 11 a includes a communication position 11 b that connects the piston side chamber 6 and the tank 7 via the second passage 10, and a blocking position 11 c that blocks communication between the piston side chamber 6 and the tank 7.
- the spring 11d biases the valve body 11a toward the blocking position 11c.
- the solenoid 11e drives the valve body 11a to the communication position 11b against the spring 11d by excitation.
- the pump 12 is rotationally driven by an electric motor 15.
- the pump 12 discharges hydraulic oil only in one direction.
- the discharge port of the pump 12 communicates with the rod side chamber 5 through the supply passage 16.
- the suction port of the pump 12 communicates with the tank 7.
- the pump 12 is rotationally driven by the electric motor 15, sucks the hydraulic oil from the tank 7, and supplies the pressurized hydraulic oil to the rod side chamber 5.
- the pump 12 discharges hydraulic oil in only one direction and does not require a switching operation in the rotation direction. Therefore, there is no problem that the discharge amount changes at the time of rotation switching, and an inexpensive gear pump or the like can be used.
- the rotation direction of the pump 12 is always the same direction, the electric motor 15 that drives the pump 12 is not required to have responsiveness with respect to the rotation switching, and an inexpensive electric motor 15 can be used.
- a check valve 17 for preventing the backflow of hydraulic oil from the rod side chamber 5 to the pump 12 is provided.
- the first on-off valve 9 When a predetermined discharge flow rate is supplied from the pump 12 to the rod side chamber 5 and the actuator A1 is extended, the first on-off valve 9 is opened and the pressure of the rod side chamber 5 is adjusted by opening / closing control of the second on-off valve 11. To do.
- the actuator A1 When the actuator A1 is contracted, the second on-off valve 11 is opened, and the pressure in the rod side chamber 5 is adjusted by opening / closing control of the first on-off valve 9. In this way, a thrust corresponding to the suppression force calculated by the control device C is obtained.
- the first on-off valve 9 and the second on-off valve 11 may be configured by a variable relief valve with an opening / closing function having a relief pressure adjusting function. In this case, the opening / closing operation of the first on-off valve 9 or the second on-off valve 11 does not expand or contract the actuator A1, but adjusts the valve opening pressure of the first on-off valve 9 or the second on-off valve 11. The thrust of the actuator A1 is controlled.
- the variable relief valve 22 is composed of a proportional electromagnetic relief valve.
- the variable relief valve 22 includes a valve body 22a provided in the discharge passage 21, a spring 22b that urges the valve body 22a in a direction to block the discharge passage 21, and a spring 22b that resists the spring 22b in response to excitation.
- a proportional solenoid 22c that exerts thrust.
- the control device C controls the relief pressure by controlling the amount of current flowing through the proportional solenoid 22c.
- variable relief valve 22 when the pressure in the rod side chamber 5 exceeds the relief pressure, the resultant force of the pressure in the rod side chamber 5 applied to the valve body 22a and the thrust force from the proportional solenoid 22c overcomes the urging force of the spring 22b. Is driven to the open position to allow the discharge passage 21 to communicate.
- variable relief valve 22 if the amount of current supplied to the proportional solenoid 22c is increased, the thrust generated by the proportional solenoid 22c can be increased. That is, when the amount of current supplied to the proportional solenoid 22c is maximized, the relief pressure of the variable relief valve 22 is minimized. If no current is supplied to the proportional solenoid 22c, the relief pressure becomes maximum.
- the pressure in the rod side chamber 5 is adjusted to the relief pressure of the variable relief valve 22 when the actuator A 1 is expanded and contracted.
- the pressure of the rod side chamber 5 can be easily adjusted by setting the relief pressure of the variable relief valve 22.
- sensors for adjusting the thrust force of the actuator A1 become unnecessary.
- the manufacturing cost of the railcar damping device 1 can be reduced, and a robust damping system in terms of hardware and software can be constructed.
- the relief pressure can be easily controlled by configuring the variable relief valve 22 with a proportional electromagnetic relief valve capable of proportionally controlling the relief pressure according to the amount of current applied. As long as the relief pressure can be adjusted, a valve body other than the proportional electromagnetic relief valve can be used as the variable relief valve 22.
- variable relief valve 22 opens the discharge passage 21 to move the rod side chamber 5 to the tank 7 when the pressure in the rod side chamber 5 exceeds the relief pressure regardless of the open / close state of the first on / off valve 9 and the second on / off valve 11. Communicate. Thereby, the excessive pressure in the rod side chamber 5 is released to the tank 7.
- Providing the discharge passage 21 and the variable relief valve 22 serves to protect the entire system against, for example, excessive input to the actuator A1.
- Actuator A1 includes a damper circuit D.
- the damper circuit D causes the actuator A1 to function as a damper with the first on-off valve 9 and the second on-off valve 11 closed.
- the damper circuit D includes a rectifying passage 18 that allows only the flow of hydraulic oil from the piston side chamber 6 toward the rod side chamber 5, and a suction passage 19 that allows only the flow of hydraulic oil from the tank 7 toward the piston side chamber 6.
- the variable relief valve 22 provided in the discharge passage 21 functions as a damping valve.
- the rectifying passage 18 allows only the flow of hydraulic oil from the piston side chamber 6 toward the rod side chamber 5 by a check valve 18a provided in the middle.
- the suction passage 19 allows only the flow of hydraulic oil from the tank 7 toward the piston side chamber 6 by a check valve 19a provided in the middle.
- the damper circuit D provided in the actuator A1 includes a rectifying passage 18, a discharge passage 21, and a suction passage 19 when the first opening / closing valve 9 is in the cutoff position 9c and the second opening / closing valve 11 is in the cutoff position 11c.
- a circulation passage is formed around the piston side chamber 6, the rod side chamber 5 and the tank 7.
- all of rectification passage 18, suction passage 19, and discharge passage 21 are one way. Therefore, when the actuator A1 is expanded or contracted by an external force, the hydraulic oil from the cylinder 2 is always discharged to the tank 7 through the discharge passage 21.
- variable relief valve 22 becomes a resistance against the flow of the hydraulic oil, thereby adjusting the pressure of the cylinder 2 to the relief pressure. That is, the variable relief valve 22 functions as a pressure control valve, and the actuator A1 functions as a uniflow type passive damper.
- the actuator A1 is configured to function as both an actuator and a passive damper.
- the variable relief valve 22 and the discharge passage 21 are not provided, but a separate passage for connecting the rod side chamber 5 and the tank 7 is provided, and a damper valve may be provided in this passage to constitute the damper circuit D. .
- the valve body 9a of the first on-off valve 9 is pressed by the spring 9d and held at the cutoff position 9c, and the valve body 11a of the second on-off valve 11 is spring-loaded. Pressed by 11d and held at the blocking position 11c.
- the variable relief valve 22 functions as a pressure control valve in which the relief pressure is fixed to the maximum. Therefore, the actuator A1 functions as a passive damper.
- the actuator A1 functions as a passive damper
- the variable relief valve 22 functions as a damping valve. Therefore, by setting the relief pressure of the variable relief valve 22 when the amount of current is zero, it is possible to arbitrarily set a damping characteristic when the actuator A1 functions as a passive damper.
- the control device C When causing the actuators A1 and A2 configured as described above to exert a thrust in the extending direction, the control device C rotates the electric motor 15 for each actuator A1 and A2, and supplies hydraulic oil from the pump 12 into the cylinder 2. While supplying, the 1st on-off valve 9 is made into the communication position 9b, and the 2nd on-off valve 11 is made into the interruption
- the actuators A1 and A2 hydraulic oil is supplied from the pump 12 to the rod side chamber 5 and the piston side chamber 6 in a state where the rod side chamber 5 and the piston side chamber 6 communicate with each other. As a result, the piston 3 becomes FIG. When the actuators A1 and A2 are pushed to the left side of FIG.
- variable relief valve 22 When the pressure in the rod side chamber 5 and the piston side chamber 6 exceeds the relief pressure of the variable relief valve 22, the variable relief valve 22 is opened and hydraulic oil flows out to the tank 7 through the discharge passage 21. The pressure in the rod side chamber 5 and the piston side chamber 6 is thereby maintained at the relief pressure of the variable relief valve 22 determined by the amount of current applied to the variable relief valve 22.
- the thrust exerted by the actuators A1 and A2 is equal to a value obtained by multiplying the pressure receiving area difference between the piston 3 in the piston side chamber 6 and the rod side chamber 5 by the pressure in the rod side chamber 5.
- the control device C rotates the electric motor 15 for each actuator A1 and A2, and supplies hydraulic oil from the pump 12 into the rod side chamber 5.
- the first on-off valve 9 is set to the cutoff position 9c
- the second on-off valve 11 is set to the communication position 11b.
- the actuators A1 and A2 not only function as actuators, that is, active dampers, but only as opening / closing operations of the first on-off valve 9 and the second on-off valve 11, and as passive dampers regardless of the driving state of the electric motor 15. Also works. Easy switching between the actuator and the passive damper is preferable for improving the response and reliability of the railcar damping device 1.
- the actuators A1 and A2 are single rod type, it is easier to secure the stroke length than the double rod type actuator, and the total length of the actuator can be kept short. This is preferable for improving the mounting property on the railway vehicle.
- the hydraulic oil that has flowed into the rod side chamber 5 from the pump 12 finally returns to the tank 7 via the piston side chamber 6. Therefore, even if gas is mixed into the rod side chamber 5 or the piston side chamber 6, the gas is discharged to the tank 7 by the expansion / contraction operation of the actuators A1 and A2. This brings about a preferable effect for preventing deterioration of responsiveness related to thrust generation. Further, it is not necessary to frequently perform maintenance for maintaining the performance of the actuators A1 and A2, and the labor and cost burden on maintenance can be reduced.
- the actuators A1 and A2 do not require troublesome assembly in oil or a vacuum environment, and high-level deaeration of hydraulic oil is not necessary. Therefore, the actuators A1 and A2 can be manufactured with high productivity, and the manufacturing cost can be kept low.
- the control device C includes a front acceleration sensor 40 that detects the horizontal acceleration ⁇ in the vehicle transverse direction of the vehicle body B above the carriage T, and a point information acquisition unit 41 that detects the travel position of the railway vehicle.
- the point information acquisition unit 41 is composed of a central vehicle monitor installed in a specific vehicle having a connected vehicle or a vehicle monitor terminal connected to the central vehicle monitor, and obtains travel position information of the rail vehicle in real time. Not only a vehicle monitor but the point information acquisition part 41 can also be comprised using GPS (Global Positioning System).
- GPS Global Positioning System
- the control device C determines whether or not the railway vehicle is traveling in a curved section based on the traveling position detected by the point information acquisition unit 41, and the electric motor 15, the first for each actuator A1 and A2 according to the determination result.
- a controller 42 is provided for outputting control commands to the solenoid 9e of the on-off valve 9, the solenoid 11e of the second on-off valve 11, and the proportional solenoid 22c of the variable relief valve 22, respectively.
- the controller 42 includes a microcomputer having a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), and an input / output interface (I / O interface).
- the controller 42 can be composed of a plurality of microcomputers.
- the controller 42 processes the horizontal acceleration ⁇ in the vehicle transverse direction, and determines whether or not the railway vehicle is traveling in a curved section based on the traveling position of the railway vehicle detected by the point information acquisition unit 41.
- the controller 42 sends control commands to the electric motor 15, the solenoid 9e of the first on-off valve 9, the solenoid 11e of the second on-off valve 11, and the proportional solenoid 22c of the variable relief valve 22 for the actuators A1 and A2 according to the determination results. Output.
- the controller 42 includes an integrator 43, a first filter 44, a second filter 45, a multiplier 46, a multiplier 47, a travel section recognition unit 48, and a command generation unit 49.
- the drive part 50 is provided.
- the integrator 43 integrates the horizontal acceleration ⁇ in the vehicle transverse direction detected by the acceleration sensor 40 to calculate the lateral velocity v.
- the first filter 44 and the second filter 45 each filter the lateral velocity v.
- the multiplier 46 multiplies the lateral velocity v filtered by the first filter 44 by the skyhook gain to calculate the high frequency suppression force FH.
- the multiplier 47 multiplies the lateral velocity v filtered by the second filter 45 by the skyhook gain to calculate the low frequency suppression force FL.
- the traveling section recognition unit 48 determines whether or not the railway vehicle is traveling in the curved section based on the traveling position detected by the point information acquisition unit 41.
- the command generation unit 49 calculates a control command F1 given to the actuator A1 and a control command F2 given to the actuator A2 from the low frequency vibration suppression force FL and the high frequency vibration suppression force FH.
- the drive unit 50 controls the electric motor 15, the solenoid 9e of the first on-off valve 9, the solenoid 11e of the second on-off valve 11, and the proportional solenoid of the variable relief valve 22 for each actuator A1 and A2.
- a current corresponding to 22c is supplied.
- the control device C includes an A / D converter for capturing a signal output from the acceleration sensor 40 as a hardware resource (not shown).
- the first filter 44 and the second filter 45 can be realized on the program of the controller 42, and the first filter 44 and the second filter 45 independent of the controller 42 can be provided separately.
- the horizontal acceleration ⁇ is, for example, FIG. 1 is set with the upward direction being positive and the downward direction being negative.
- the installation location of the acceleration sensor 40 is preferably directly above the carriage T of the vehicle body B. However, if the output data can be used to calculate the horizontal acceleration ⁇ of the vehicle body B immediately above the carriage T, the acceleration sensor 40 can be installed at another location.
- the first filter 44 is a high-pass filter that extracts a frequency component equal to or higher than the frequency of centrifugal acceleration acting on the vehicle body B when the railway vehicle travels in a curved section of the lateral speed v.
- the frequency of centrifugal acceleration acting on the vehicle body B when the railway vehicle travels in the curved section is approximately 0.5 Hz or less, although it depends on the actual traveling speed of the railway vehicle. Therefore, the cut-off frequency of the first filter 44 may be 1 Hz or more, for example.
- the cutoff frequency is set to 2 Hz so that the high-frequency vibration suppression force FH is not affected by the centrifugal acceleration and does not react to the centrifugal acceleration.
- the second filter 45 is a high-pass filter that extracts a frequency component equal to or higher than the resonance frequency of the vehicle body B from the lateral speed v.
- the resonance frequency of the vehicle body B supported by the carriage T with a spring is around 1 Hz.
- the cutoff frequency of the second filter 45 is set to about 0.3 Hz.
- a phase compensator may be provided separately. It is also possible to use a bandpass filter that extracts only the resonance frequency band component of the vehicle body B as the second filter 45. Alternatively, a low-pass filter that extracts components below the resonance frequency band of the vehicle body B can be used.
- the lateral velocity v filtered by the first filter 44 is input to the multiplier 46.
- the lateral velocity v filtered by the second filter 45 is input to the multiplier 47.
- the multiplier 46 calculates the high frequency vibration suppression force FH by multiplying the frequency component of the lateral velocity v after the frequency component equal to or lower than the centrifugal acceleration frequency is removed by the skyhook gain.
- the multiplier 47 calculates the low frequency vibration suppression force FL by multiplying the frequency component of the lateral velocity v including the resonance frequency component of the vehicle body B extracted by the second filter 45 by the skyhook gain.
- the traveling section recognition unit 48 determines whether or not the railway vehicle is traveling in a curved section from the traveling position information obtained from the point information acquisition unit 41, and outputs the determination result to the command generation unit 49.
- the travel section recognizing unit 48 has a map in which travel section information is associated with a travel point, and refers to the map from the travel point of the railway vehicle to determine whether or not it is a curved section. To do.
- the traveling section recognizing unit 48 determines that the curve section has been entered upon receipt of the signal from the transmitter on the curved section entrance side, and has determined that the vehicle section has moved outside the curved section upon receipt of the signal from the transmitter on the exit section of the curved section. To do. In short, the travel section recognition unit 48 only needs to be able to determine that the railway vehicle is traveling in a curved section.
- the railcar damping device 1 is actually used for switching from control in a section other than the curved section to control in the curved section while the railway vehicle travels on a route. For this reason, it is preferable to perform control switching before the railway vehicle enters the curved section.
- information on the travel section associated with the travel point information for setting an attenuation coefficient for causing the actuator A2 to function as a passive damper may be included in addition to the discrimination between the curved section and the other sections.
- this includes information on the characteristics of the curve section, such as the cant amount of the curve section, the curvature, the discrimination of the relaxation curve or the steady curve section, the pattern of the relaxation curve in the case of the relaxation curve, slack, and the like.
- the command generation unit 49 calculates the determination result of the travel section recognition unit 48, the low-frequency vibration suppression force FL, and the high-frequency vibration suppression force FH, and the control command F1 to the actuator A1 and the control command F2 to the actuator A2. To do.
- the command generation unit 49 when the traveling section recognition unit 48 determines that the railway vehicle is traveling in a region other than the curved section, the command generation unit 49 generates a control command F1 that causes the actuator A1 to output the high-frequency vibration suppression force FH.
- a control command F2 for outputting the low frequency vibration suppression force FL to the actuator A2 is generated.
- the command generation unit 49 when the travel section recognition unit 48 determines that the railway vehicle is traveling in a curved section, the command generation unit 49 generates a control command F1 that outputs the high-frequency vibration suppression force FH to the actuator A1, and makes the actuator A2 passive.
- a control command F2 is generated to function as a damper.
- the drive unit 50 causes the actuators A1 and A2 to exert thrust or function as a passive damper according to the control commands F1 and F2.
- the drive unit 50 supplies currents corresponding to the electric motor 15, the solenoid 9e of the first on-off valve 9, the solenoid 11e of the second on-off valve 11 and the proportional solenoid 22c of the variable relief valve 22 for the actuators A1 and A2. Output.
- the drive unit 50 causes the direction and magnitude of the thrust exerted on each actuator A1 and A2 from the control commands F1 and F2. Accordingly, for each actuator A1 and A2, a current corresponding to the electric motor 15, the solenoid 9e of the first on-off valve 9, the solenoid 11e of the second on-off valve 11, and the proportional solenoid 22c of the variable relief valve 22 is output. As for the current command to be given to the proportional solenoid 22c, it is also preferable to ensure control accuracy by feeding back the thrusts output from the actuators A1 and A2.
- the drive unit 50 for the actuator A2 includes the electric motor 15, the solenoid 9e of the first on-off valve 9, and the solenoid 11e of the second on-off valve 11.
- the current output to the proportional solenoid 22c of the variable relief valve 22 is set to zero.
- the actuator A2 always discharges hydraulic oil from the cylinder 2 in any expansion and contraction operations. The discharged hydraulic oil returns to the tank 7 through the discharge passage 21.
- the variable relief valve 22 gives resistance to this flow, so that the actuator A2 functions as a passive damper.
- the current may not be completely zero, and the rotational speed may be lowered to such an extent that the actuator A2 functions as a passive damper.
- a control command F2 that causes the actuator A2 to output the low-frequency vibration suppression force FL is generated.
- the actuator A2 returns from the passive damper state to an actuator that exhibits thrust equivalent to the low-frequency vibration suppression force FL.
- the actuator A2 When information such as the cant amount and curvature of the curve section can be obtained, when the actuator A2 is made to function as a passive damper, the amount of current applied to the proportional solenoid 22c of the variable relief valve 22 of the actuator A2 is determined from these information, It is also preferable to set the attenuation coefficient of the actuator A2 so as to be optimal for a curved section in which the railway vehicle is traveling. In this case, an attenuation coefficient is associated with the curve section in advance.
- the amount of current applied to the proportional solenoid 22c of the variable relief valve 22 is associated with the curve section in advance.
- the attenuation coefficient of the actuator A2 can be optimized for each curve section of the railway line.
- the railcar damping device 1 when the railcar travels outside the curved section, some of the actuators A1 output the high-frequency vibration suppression force FH, and the remaining actuators A2 are low-frequency. Outputs vibration suppression force FL. As a result, it is possible to exert an appropriate suppression force against vibrations in a wide frequency range of the vehicle body B, thereby reducing the vibrations of the vehicle body B and improving the riding comfort of the railway vehicle.
- the railcar damping device 1 while the railcar is traveling in a curved section, the front and rear actuators A1 output the high-frequency vibration suppression force FH, and the remaining actuators A2 function as passive dampers. To do. Therefore, the railcar damping device 1 can effectively suppress vibrations at a frequency higher than the frequency of the centrifugal acceleration of the vehicle body B when traveling in a curved section. On the other hand, low-frequency vibrations can be effectively damped without being affected by centrifugal acceleration by the damping force exhibited by the passive damper. Therefore, it is possible to improve the riding comfort of the railway vehicle when traveling in a curved section. The reason will be described below.
- the acceleration detected by the acceleration sensor 40 during traveling in a curved section includes a centrifugal acceleration component in a frequency band very close to the resonance frequency band of the vehicle body B. This centrifugal acceleration component cannot be completely removed by filtering. For this reason, when the actuators A1 and A2 are controlled as actuators during traveling in a curved section as in the traveling other than the curved section, the thrusts of the actuators A1 and A2 become excessive.
- the vibration component of the centrifugal acceleration is to be removed from the acceleration detected by the acceleration sensor 40, the component in the resonance frequency band of the vehicle body B, which is close to the frequency band of the centrifugal acceleration of the horizontal velocity in the horizontal direction of the vehicle body B, is also obtained. It will be removed. As a result, the thrusts of the actuators A1 and A2 are insufficient, leading to deterioration in riding comfort.
- the actuator A2 functions as a passive damper with respect to low frequency vibrations in the frequency band of centrifugal acceleration and the resonance frequency band of the vehicle body B in a curved section, and vibrations in a frequency band higher than the frequency of centrifugal acceleration.
- the actuator A1 exerts a suppressing force to suppress vibration. Therefore, vibrations in the resonance frequency band of the vehicle body B can be sufficiently suppressed and high-frequency vibrations can be effectively suppressed, and good riding comfort can be maintained even during curve section travel. This is effective whether the curve section is a relaxation curve or a steady circular curve.
- the actuators A1 and A2 constitute a vibration suppression force generation source. More specifically, the actuator A1 corresponds to some vibration suppression force generation sources, and the actuator A2 corresponds to the remaining vibration suppression force generation sources.
- each of the actuators A1 and A2 can exert the resultant force of the low frequency vibration suppressing force FL and the high frequency vibration suppressing force FH in a section other than the curved section.
- the actuator A1 outputs the high-frequency vibration suppression force FH
- the actuator A2 functions as a passive damper.
- the actuator A1 is caused to function as a passive damper, and the high-frequency vibration suppression force FH is output to the actuator A2.
- the actuator A1 outputs the high-frequency vibration suppression force FH, and the actuator A2 outputs the low-frequency vibration suppression force FL.
- the use of a part of the actuators A1 among the actuators A1 and A2 for always suppressing high frequency vibrations and the remaining actuator A2 for suppressing low frequency vibrations has the following advantages. That is, it is not necessary to switch the control of the actuator A1 because the actuator A1 always suppresses the high frequency vibration. Therefore, the controller 42 can smoothly switch between the mode in the curve section and the mode other than the curve section while avoiding a sudden change in the control command. As a result, the behavior of the vehicle body B accompanying the mode switching is also stabilized, and the riding comfort of the railway vehicle can be further improved.
- a damping force variable damper can also be used as a vibration suppression force generation source.
- carnop control can also be used to realize a skyhook damper.
- the low frequency vibration suppression force FL and the high frequency vibration suppression force FH may be calculated from the lateral speed v of the vehicle body B, the stroke direction of the damping force variable damper, and the skyhook gain.
- the actuator A2 function as a passive damper in the curved section. Therefore, the actuator A1 may be configured exclusively for an actuator that does not have a passive damper function. Further, the number of actuators is not limited to two. No matter how many two or more are installed, it is sufficient to cause a part of the actuator to exhibit the high-frequency vibration suppressing force FH in the curved section and to make all the remaining actuators function as passive dampers.
- This invention has a favorable effect on improving the riding comfort of a railway vehicle.
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Abstract
Description
コントローラは、車体の横方向の速度から、鉄道車両が曲線区間走行時に車体に作用する遠心加速度の周波数以上の周波数成分を抽出し、抽出した横方向速度の周波数成分に基づき高周波振動抑制力を算出し、鉄道車両が曲線区間を走行中に、振動抑制力発生源の少なくとも一部に高周波振動抑制力を出力させ、振動抑制力発生源の残りの全部をパッシブダンパとして機能させるように、プログラムされる。
ポンプ12は電動モータ15によって回転駆動される。ポンプ12は一方向のみに作動油を吐出する。ポンプ12の吐出口は供給通路16を介してロッド側室5に連通する。ポンプ12の吸込口はタンク7に連通する。ポンプ12は電動モータ15によって回転駆動され、タンク7から作動油を吸い込み、加圧した作動油をロッド側室5へ供給する。
制御装置Cは、ハードウェア資源として、図示はしないが、加速度センサ40が出力する信号を取り込むためのA/D変換器を備える。第一フィルタ44と第二フィルタ45を、コントローラ42のプログラム上で実現することも可能であり、コントローラ42から独立した第一フィルタ44と第二フィルタ45を別に設けることも可能である。
水平加速度αは、例えば、FIG.1の上向きを正、下向きを負として、設定される。加速度センサ40の設置箇所は、車体Bの台車Tの直上方が好ましい。しかしながら、台車Tの直上方における車体Bの水平加速度αの算出に出力データを利用できるのであれば、加速度センサ40を他の場所に設置することも可能である。
あるいは、曲線区間とそれ以外の区間の境界や曲線区間の前後に信号を発する発信機を設け、鉄道車両側に発信機の信号を受信する受信機を地点情報取得部として設けることも可能である。この場合、走行区間認識部48は、曲線区間入口側の発信機の信号の受信をもって曲線区間に入ったと判定し、曲線区間出口側の発信機の信号の受信をもって曲線区間以外に脱したと判定する。要するに、走行区間認識部48は、鉄道車両が曲線区間を走行中であることを判定することができれば良い。なお、曲線区間走行時の乗り心地を良好に保つため、鉄道車両用制振装置1は、鉄道車両が路線を走行中に曲線区間以外での制御から曲線区間での制御へ切り換える都合上、実際には、鉄道車両が曲線区間に進入する前に制御の切り換えを行なうことが好ましい。
また、走行地点に関連付けられる走行区間の情報として、曲線区間とそれ以外の区間との判別に加えて、アクチュエータA2をパッシブダンパとして機能させる際の減衰係数を設定するための情報を含ませることも好ましい。具体的には、曲線区間のカント量、曲率、緩和曲線か定常曲線区間の判別、緩和曲線である場合の緩和曲線のパターン、スラック等といった曲線区間の特性に関する情報がこれに当たる。
Claims (6)
- 鉄道車両の台車と車体との間に介装される二つ以上の振動抑制力発生源と;
車体の横方向の速度を検出するセンサと;
次のようにプログラムされたプログラマブルコントローラ:
車体の横方向の速度から、鉄道車両が曲線区間走行時に車体に作用する遠心加速度の周波数以上の周波数成分を抽出し;
抽出した横方向速度の周波数成分に基づき高周波振動抑制力を算出し;
鉄道車両が曲線区間を走行中に、振動抑制力発生源の少なくとも一部に高周波振動抑制力を出力させ、振動抑制力発生源の残りの全部をパッシブダンパとして機能させる、
とを備える鉄道車両用制振装置。 - 車体の横方向速度の車体共振周波数成分を抽出し、車体の横方向速度の車体共振周波数成分に基づき低周波振動抑制力を算出し、鉄道車両が曲線区間以外を走行中は、振動抑制力発生源の少なくとも一部に高周波振動抑制力を出力させ、振動抑制力発生源の残りの全部に低周波振動抑制力を出力させるように、さらにプログラムされる請求項1の鉄道車両用制振装置。
- 振動抑制力発生源は、通電不能時にパッシブダンパ機能を発揮するアクチュエータである請求項1の鉄道車両用制振装置。
- 鉄道車両の走行位置情報である地点情報を取得する地点情報取得部をさらに備え、コントローラは鉄道車両の走行位置に基づき鉄道車両が曲線区間を走行中か否かを判定するように、さらにプログラムされる請求項1の鉄道車両用制振装置。
- 地点情報取得部は走行位置情報を取得するモニタで構成され、コントローラは走行位置情報に基づき、鉄道車両が走行中の区間が曲線区間であるか否かを判断するように、さらにプログラムされる請求項4の鉄道車両用制振装置。
- 振動抑制力発生源は、流体を充填したシリンダと、シリンダ内に摺動自在に挿入されるピストンと、シリンダ内に挿入されてピストンに連結されるロッドと、シリンダ内にピストンにより画成されたロッド側室とピストン側室と、流体のタンクと、ロッド側室とピストン側室とを連通する第一通路に設けた第一開閉弁と、ピストン側室とタンクとを連通する第二通路に設けた第二開閉弁と、タンクからロッド側室へ流体を供給するポンプと、ロッド側室をタンクへ接続する排出通路と、排出通路に設けられたリリーフ圧を変更可能な可変リリーフ弁と、タンクからピストン側室へ向かう流体の流れのみを許容する吸込通路と、ピストン側室からロッド側室へ向かう流体の流れのみを許容する整流通路と、を備える請求項1の鉄道車両用制振装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201380003916.6A CN103946095B (zh) | 2012-03-14 | 2013-03-13 | 铁路车辆用减震装置 |
US14/346,912 US8948941B2 (en) | 2012-03-14 | 2013-03-13 | Railway vehicle vibration damping device |
EP13761963.1A EP2826690A4 (en) | 2012-03-14 | 2013-03-13 | VIBRATION DAMPER FOR A RAIL VEHICLE |
CA2863029A CA2863029C (en) | 2012-03-14 | 2013-03-13 | Railway vehicle vibration damping device |
KR1020147015984A KR101583175B1 (ko) | 2012-03-14 | 2013-03-13 | 철도 차량용 제진 장치 |
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JP2012056849A JP5503680B2 (ja) | 2012-03-14 | 2012-03-14 | 鉄道車両用制振装置 |
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EP (1) | EP2826690A4 (ja) |
JP (1) | JP5503680B2 (ja) |
KR (1) | KR101583175B1 (ja) |
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WO2014134500A1 (en) | 2013-02-28 | 2014-09-04 | Tenneco Automotive Operating Company Inc. | Damper with integrated electronics |
US9884533B2 (en) | 2013-02-28 | 2018-02-06 | Tenneco Automotive Operating Company Inc. | Autonomous control damper |
US9217483B2 (en) | 2013-02-28 | 2015-12-22 | Tenneco Automotive Operating Company Inc. | Valve switching controls for adjustable damper |
US9879748B2 (en) | 2013-03-15 | 2018-01-30 | Tenneco Automotive Operating Company Inc. | Two position valve with face seal and pressure relief port |
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JP6368204B2 (ja) * | 2014-09-19 | 2018-08-01 | Kyb株式会社 | 鉄道用制振装置 |
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- 2013-03-13 KR KR1020147015984A patent/KR101583175B1/ko active IP Right Grant
- 2013-03-13 CN CN201380003916.6A patent/CN103946095B/zh not_active Expired - Fee Related
- 2013-03-13 EP EP13761963.1A patent/EP2826690A4/en not_active Withdrawn
- 2013-03-13 US US14/346,912 patent/US8948941B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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JP5503680B2 (ja) | 2014-05-28 |
US8948941B2 (en) | 2015-02-03 |
JP2013189088A (ja) | 2013-09-26 |
EP2826690A1 (en) | 2015-01-21 |
KR20140093272A (ko) | 2014-07-25 |
CN103946095A (zh) | 2014-07-23 |
CA2863029C (en) | 2016-05-24 |
CN103946095B (zh) | 2016-06-29 |
EP2826690A4 (en) | 2015-11-11 |
US20140257606A1 (en) | 2014-09-11 |
KR101583175B1 (ko) | 2016-01-07 |
CA2863029A1 (en) | 2013-09-19 |
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