CA1186037A - Electrical brake system for electric rolling stock - Google Patents
Electrical brake system for electric rolling stockInfo
- Publication number
- CA1186037A CA1186037A CA000420856A CA420856A CA1186037A CA 1186037 A CA1186037 A CA 1186037A CA 000420856 A CA000420856 A CA 000420856A CA 420856 A CA420856 A CA 420856A CA 1186037 A CA1186037 A CA 1186037A
- Authority
- CA
- Canada
- Prior art keywords
- resistor
- current
- chopper
- regenerative
- filter condenser
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/22—Dynamic electric resistor braking, combined with dynamic electric regenerative braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor
- H02P3/14—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by regenerative braking
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Disclosed is an electrical brake system for an electric rolling stock including a filter condenser and resistor-chopper. If the voltage across the filter condenser is going to rise excessively due to an abrupt variation of the trolly load or a momentary coming off of the pantagraph from the trolly, it is detected promptly and the resistor-chopper connected in parallel to the filter condenser is operated so as to suppress the excessive voltage and at the same time reduce the resistor-chopper current automatically in accordance with the predetermined timing pattern, not to a complete cut off of the regenerative braking current, but maintaining the regenerative control, thereby allowing a quick restoration of the regenerative current when the power system is rid of the disturbance.
Disclosed is an electrical brake system for an electric rolling stock including a filter condenser and resistor-chopper. If the voltage across the filter condenser is going to rise excessively due to an abrupt variation of the trolly load or a momentary coming off of the pantagraph from the trolly, it is detected promptly and the resistor-chopper connected in parallel to the filter condenser is operated so as to suppress the excessive voltage and at the same time reduce the resistor-chopper current automatically in accordance with the predetermined timing pattern, not to a complete cut off of the regenerative braking current, but maintaining the regenerative control, thereby allowing a quick restoration of the regenerative current when the power system is rid of the disturbance.
Description
ELECTRICAL BRAKE SYSTEM
FOR ELECTRIC ROLLING STOCK
BACKGROUND OF THE INVENTION
_ ~ield of the Invention The present invention relates to an electrical brake system for an electric rolling stock and, more particularly, to a control system wherein a filter condenser and a control unit are connected in parallel to the DC power supply so that the control unit operates on the driving motor to perform regenerative control and generation control for the vehicle driving motor.
Description of the Prior Art In the conventional regenerative brake control for the electric rolling stock, if the regenerative load on the trolly varies abruptly or the pantagraph comes off the trolly momentarily due to the vibration of the vehicle during a regenerative braking operation, the voltage across the filter condenser rises excessively. On this account, when a voltage rise is detected, the regenerative brake circuit is opened immediately so as to protect the control uni.t and driving motor. However, when this method is used for vehicles running on lines with large variation of regenerative load or for street cars whose pantagraph come off the trolly frequently, the regenerative braking operation is interrupted frequently, resulting in a poor regenerat.ive duty cycle. In addition, an abrupt release of the regenerative braking force and a switching to the additional mechanical braking force with a time lag following the first event create a shock, thereby causing uncomfortableness for the passengers.
SU~IARY OF THE INVE2~TION
_ A primary object of the present invention is to provide an electric brake system for an electric rolling stock which is rid of the foregoing prior art deficiencies.
Another object of the present invention is to provide a control system which detects immediately a rising voltage across the filter condenser entering into the excessive range caused by an abrupt variation of the regenerative load on the trolly or a momentary separation of the pantagraph from the trolly, and operates a resistor chopper connected 15 in parallel to the filter condenser so as to suppress the excessive voltage Still another object of the present invention is to provide a control system which reduces the current in the resistor chopper automatically in accordance with a pre-determined timing pattern, and retains the regenerativecontrol so that the regenerative braking current is not cut off completely, thereby allowing a ~uick rise of the regenerative current after the regenerative load on the trolly is restored or the pantagraph goes back to the trolly.
These and other objects and advantages of the invention will become more apparent from the following detailed ~36t)3~7 description of the embodiments taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a systematic diagram showing one embodiment of the inventive electrical brake system;
Figure 2 is a block diagram explaining the control circuit shown in Fig. l;
Figure 3 is a block diagram explaining the modified control circuit' and Figure 4 is a systematic diagram showing another embodiment of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In Figs. 1 and 2, refe~ence number 1 denotes a trolly connected to a DC power source, 2 is a pantagraph, 3 is a filter reactor, 4 is a filter condenser, and 5 is a series circuit of a resistor 6 and resistor-chopper 7 connected in parallel to the filter condenser 4. Reference number 8 is a regenerative chopper made up of a chopping section 9, a blocking diode 10 and a smoothing reactor 11. Reference number 12 is a DC motor having an excitation winding 13 and an armature 14. Reference number 15 is a DC potential transformer (DCPT), 16 is a serial resistor, 17 is a DC
current transformer (DCCTl) for sensing the current in the DC motor 12, and 18 is a DC current transformer (DCCT2) for sensing the current in the series circuit 5. Reference number 19 is a main motor current pattern (Ip) generator, and 20 ls a regenerative current limiter which operates ~86(~37 on the regenerative chopper ~ to reduce the motor current when the detected voltage Vc across the filter condenser 4 exceeds the first preset voltage level Vl, and provides the maximum limiter output to minimize the motor current when the detected voltage Vc has reached the second preset voltage level V2 (V2 > Vl) thereby to suppress the regene-rative current indirectly. The regenerative current limiter 20 is designed to have a control stability and proper response constant so that the electrical braking force and mechanical braking force are switched smoothly.
Reference number 21 is a filter condenser voltage comparator which issues a start command to operate the resistor-chopper 5 immediately when the voltage Vc has reached a predetermined level V3 (V3 _ V2). The voltage comparator 21 is designed to have proper hysteresis characteristics and timer characteristics so that it is deactivated when the voltage Vc goes down below V0 (VO < Vl) or a predetermined To has elapsed.
Reference number 22 is a current detector for measuring the regenerative current IL and, in this embodi-ment, the detector performs the arithmetic operation IL = IM x (1 - y) based on the current conducting duty cycle y of the regenerative chopper 8 and the detected motor current IM~ As an alternative arrangement, the current iL flowing in the filter reactor 3 may ~e detected using a DC current transformer (not shown) instead of using the regenerative current detector 22.
~i36C~37 Reference number 23 is a current pattern generator for creating a pattern IRp of the current iR conducted through -the resistor-chopper 7. The current pattern generator 23 provides a current pattern IRp so that current iR is substantially equal to current IL at the initial state when the voltage comparator 21 has issued a command to the resistor-chopper 5, and upon expiration of time To~ the circuit 23 reduces the IRp smoothly so that the iR becomes substantially zero. The resistor-chopper 5 receives the detected value IR of iR from the DC current transformer (DCCT2) 18 so as to perform the current control in accor-dance with the current pattern I~p.
In such an arrangement, if an abrupt varia-tion of the trolly load or the like has occurred, the regenerative current iL is transferred immediately to the current iR
through the resistor chopper 7 so as to preven-t the electrical braking force from varying sharply. When the filter condenser voltage Vc rises gradually due to the reduction of the resistor chopper current iR based on the timer pattern IRp, on the other hand the regenerative current limiter 20 operates to reduce the motor current smoothly.
If the resistor chopper current finally becomes minimal or is cut off completely, the current control is performed for a small trolly load condition or no-load condition, ~here the power .system is loaded only with auxiliary devices within the vehicle, solely by the regenerative chopper 8 including the current limiter 20. In consequence, when the ()37 -trolly load is restored and the power voltage falls, causing the Vc to go back below V1, the current limiter 20 is deactivated so that the regenexative chopper 8 increases the motor current automaticallv and promptly up to Ip, and the normal regenerative control is restored.
The arrangement of the control circuit shown in Fig. 3 is basically identical to that of Fig. 2, and performs a slightly simplfied control for the resistor-chopper 7.
Specifically, the feedback of IR is eliminated and the resistor chopper current is controlled on an open loop ,basis following the current conduction duty cycle pat-tern YRp provided by the current pattern generator 23. In this case, the value ~L of the timer pattern ~RP at starting is set automatically basing on the arithmetic operation ~L = R/V2 x IL (where R is the resistance of the resistor 6, V2 is the second preset voltage level and IL is the regenerative current value), and it becomes zero or minimal upon exp.ira-tion of the time To~
Figure 4 shows another embodiment of the present invention wherein the control unit employs a VVVF inverter 24 so that the same effect of control is achieved for an induction motor 25 which serves as the driving motor for the electric rolling stock, whereas in the previous embodiment the regenerative chopper is used as the control unit.
Furthermore, the control unit may be of the conventional cam-contacts system.
1~l8~;~37 According to the present invention, as described above, the voltage across the filter condenser is measured and compared with several preset values, and the control mode for the regenerative current is determined depending on the threshold exceeded by the filter condenser voltage.
Accordingl~, even after an abrupt variation in the trolly load or a coming off of the pantagraph from the trolly has occurred, the braking force is controlled stably while suppressing an excessive voltage across the filter con-denser, and the regenerative braking is restored promptly.
In Figure 4, the VVVF inverter is an abbreviation ofa variable voltage variable frequency inverter.
FOR ELECTRIC ROLLING STOCK
BACKGROUND OF THE INVENTION
_ ~ield of the Invention The present invention relates to an electrical brake system for an electric rolling stock and, more particularly, to a control system wherein a filter condenser and a control unit are connected in parallel to the DC power supply so that the control unit operates on the driving motor to perform regenerative control and generation control for the vehicle driving motor.
Description of the Prior Art In the conventional regenerative brake control for the electric rolling stock, if the regenerative load on the trolly varies abruptly or the pantagraph comes off the trolly momentarily due to the vibration of the vehicle during a regenerative braking operation, the voltage across the filter condenser rises excessively. On this account, when a voltage rise is detected, the regenerative brake circuit is opened immediately so as to protect the control uni.t and driving motor. However, when this method is used for vehicles running on lines with large variation of regenerative load or for street cars whose pantagraph come off the trolly frequently, the regenerative braking operation is interrupted frequently, resulting in a poor regenerat.ive duty cycle. In addition, an abrupt release of the regenerative braking force and a switching to the additional mechanical braking force with a time lag following the first event create a shock, thereby causing uncomfortableness for the passengers.
SU~IARY OF THE INVE2~TION
_ A primary object of the present invention is to provide an electric brake system for an electric rolling stock which is rid of the foregoing prior art deficiencies.
Another object of the present invention is to provide a control system which detects immediately a rising voltage across the filter condenser entering into the excessive range caused by an abrupt variation of the regenerative load on the trolly or a momentary separation of the pantagraph from the trolly, and operates a resistor chopper connected 15 in parallel to the filter condenser so as to suppress the excessive voltage Still another object of the present invention is to provide a control system which reduces the current in the resistor chopper automatically in accordance with a pre-determined timing pattern, and retains the regenerativecontrol so that the regenerative braking current is not cut off completely, thereby allowing a ~uick rise of the regenerative current after the regenerative load on the trolly is restored or the pantagraph goes back to the trolly.
These and other objects and advantages of the invention will become more apparent from the following detailed ~36t)3~7 description of the embodiments taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a systematic diagram showing one embodiment of the inventive electrical brake system;
Figure 2 is a block diagram explaining the control circuit shown in Fig. l;
Figure 3 is a block diagram explaining the modified control circuit' and Figure 4 is a systematic diagram showing another embodiment of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In Figs. 1 and 2, refe~ence number 1 denotes a trolly connected to a DC power source, 2 is a pantagraph, 3 is a filter reactor, 4 is a filter condenser, and 5 is a series circuit of a resistor 6 and resistor-chopper 7 connected in parallel to the filter condenser 4. Reference number 8 is a regenerative chopper made up of a chopping section 9, a blocking diode 10 and a smoothing reactor 11. Reference number 12 is a DC motor having an excitation winding 13 and an armature 14. Reference number 15 is a DC potential transformer (DCPT), 16 is a serial resistor, 17 is a DC
current transformer (DCCTl) for sensing the current in the DC motor 12, and 18 is a DC current transformer (DCCT2) for sensing the current in the series circuit 5. Reference number 19 is a main motor current pattern (Ip) generator, and 20 ls a regenerative current limiter which operates ~86(~37 on the regenerative chopper ~ to reduce the motor current when the detected voltage Vc across the filter condenser 4 exceeds the first preset voltage level Vl, and provides the maximum limiter output to minimize the motor current when the detected voltage Vc has reached the second preset voltage level V2 (V2 > Vl) thereby to suppress the regene-rative current indirectly. The regenerative current limiter 20 is designed to have a control stability and proper response constant so that the electrical braking force and mechanical braking force are switched smoothly.
Reference number 21 is a filter condenser voltage comparator which issues a start command to operate the resistor-chopper 5 immediately when the voltage Vc has reached a predetermined level V3 (V3 _ V2). The voltage comparator 21 is designed to have proper hysteresis characteristics and timer characteristics so that it is deactivated when the voltage Vc goes down below V0 (VO < Vl) or a predetermined To has elapsed.
Reference number 22 is a current detector for measuring the regenerative current IL and, in this embodi-ment, the detector performs the arithmetic operation IL = IM x (1 - y) based on the current conducting duty cycle y of the regenerative chopper 8 and the detected motor current IM~ As an alternative arrangement, the current iL flowing in the filter reactor 3 may ~e detected using a DC current transformer (not shown) instead of using the regenerative current detector 22.
~i36C~37 Reference number 23 is a current pattern generator for creating a pattern IRp of the current iR conducted through -the resistor-chopper 7. The current pattern generator 23 provides a current pattern IRp so that current iR is substantially equal to current IL at the initial state when the voltage comparator 21 has issued a command to the resistor-chopper 5, and upon expiration of time To~ the circuit 23 reduces the IRp smoothly so that the iR becomes substantially zero. The resistor-chopper 5 receives the detected value IR of iR from the DC current transformer (DCCT2) 18 so as to perform the current control in accor-dance with the current pattern I~p.
In such an arrangement, if an abrupt varia-tion of the trolly load or the like has occurred, the regenerative current iL is transferred immediately to the current iR
through the resistor chopper 7 so as to preven-t the electrical braking force from varying sharply. When the filter condenser voltage Vc rises gradually due to the reduction of the resistor chopper current iR based on the timer pattern IRp, on the other hand the regenerative current limiter 20 operates to reduce the motor current smoothly.
If the resistor chopper current finally becomes minimal or is cut off completely, the current control is performed for a small trolly load condition or no-load condition, ~here the power .system is loaded only with auxiliary devices within the vehicle, solely by the regenerative chopper 8 including the current limiter 20. In consequence, when the ()37 -trolly load is restored and the power voltage falls, causing the Vc to go back below V1, the current limiter 20 is deactivated so that the regenexative chopper 8 increases the motor current automaticallv and promptly up to Ip, and the normal regenerative control is restored.
The arrangement of the control circuit shown in Fig. 3 is basically identical to that of Fig. 2, and performs a slightly simplfied control for the resistor-chopper 7.
Specifically, the feedback of IR is eliminated and the resistor chopper current is controlled on an open loop ,basis following the current conduction duty cycle pat-tern YRp provided by the current pattern generator 23. In this case, the value ~L of the timer pattern ~RP at starting is set automatically basing on the arithmetic operation ~L = R/V2 x IL (where R is the resistance of the resistor 6, V2 is the second preset voltage level and IL is the regenerative current value), and it becomes zero or minimal upon exp.ira-tion of the time To~
Figure 4 shows another embodiment of the present invention wherein the control unit employs a VVVF inverter 24 so that the same effect of control is achieved for an induction motor 25 which serves as the driving motor for the electric rolling stock, whereas in the previous embodiment the regenerative chopper is used as the control unit.
Furthermore, the control unit may be of the conventional cam-contacts system.
1~l8~;~37 According to the present invention, as described above, the voltage across the filter condenser is measured and compared with several preset values, and the control mode for the regenerative current is determined depending on the threshold exceeded by the filter condenser voltage.
Accordingl~, even after an abrupt variation in the trolly load or a coming off of the pantagraph from the trolly has occurred, the braking force is controlled stably while suppressing an excessive voltage across the filter con-denser, and the regenerative braking is restored promptly.
In Figure 4, the VVVF inverter is an abbreviation ofa variable voltage variable frequency inverter.
Claims (6)
1. An electrical brake system for an electric rolling stock comprising:
a. a control means which performs regenerative control and generation control for a driving motor of said electric rolling stock so as to control electrical braking;
b. a filter condenser connected together with said control means in parallel to a DC power supply; and c. a series circuit made up of a resistor and a resistor-chopper, and connected in parallel to said filter condenser, said control means reducing the regenerative current of said motor in response to the difference of a terminal voltage of said filter condenser from a first predetermined value when the terminal voltage of said filter condenser has risen higher than said first predetermined value, said control means reducing the regenerative current down to a value at which said regenerative control can barely be maintained when the terminal voltage of said filter condenser has reached a second predetermined value which is larger than said first predetermined value, said resistor chopper being operated when the terminal voltage of said filter condenser becomes equal to or larger than a third predetermined value which is larger than said second predetermined value so that a current in substantially equal magnitude to that of a regenerative current at a time of detecting said third predetermined voltage level is conducted to said series circuit and thereafter said resistor-chopper reducing the series circuit current down to a predetermined value.
a. a control means which performs regenerative control and generation control for a driving motor of said electric rolling stock so as to control electrical braking;
b. a filter condenser connected together with said control means in parallel to a DC power supply; and c. a series circuit made up of a resistor and a resistor-chopper, and connected in parallel to said filter condenser, said control means reducing the regenerative current of said motor in response to the difference of a terminal voltage of said filter condenser from a first predetermined value when the terminal voltage of said filter condenser has risen higher than said first predetermined value, said control means reducing the regenerative current down to a value at which said regenerative control can barely be maintained when the terminal voltage of said filter condenser has reached a second predetermined value which is larger than said first predetermined value, said resistor chopper being operated when the terminal voltage of said filter condenser becomes equal to or larger than a third predetermined value which is larger than said second predetermined value so that a current in substantially equal magnitude to that of a regenerative current at a time of detecting said third predetermined voltage level is conducted to said series circuit and thereafter said resistor-chopper reducing the series circuit current down to a predetermined value.
2. An electrical brake system according to claim 1, wherein said resistor-chopper is adapted to reduce the current in said series circuit in a time constant substan-tially equal to a response time constant of said control means in reducing the motor current, when the terminal voltage of said filter condenser has become equal to or higher than said third predetermined value.
3. An electrical brake system according to claim 1, wherein said series circuit comprises a resistor and a resistor-chopper connected in series to said resistor.
4. An electrical brake system according to claim 1, wherein said control means comprises a regenerative chopper.
5. An electrical system according to claim 4, wherein said regenerative chopper comprises a chopping section, a blocking diode and a smoothing reactor.
6. An electrical brake system according to claim 1, wherein said control means comprises a VVVF inverter, and said driving motor is an induction motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35406/1982 | 1982-03-05 | ||
| JP57035406A JPS58154304A (en) | 1982-03-05 | 1982-03-05 | Electric brake device for electric rolling stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1186037A true CA1186037A (en) | 1985-04-23 |
Family
ID=12441006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000420856A Expired CA1186037A (en) | 1982-03-05 | 1983-02-03 | Electrical brake system for electric rolling stock |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS58154304A (en) |
| AU (1) | AU556308B2 (en) |
| CA (1) | CA1186037A (en) |
| ES (1) | ES519993A0 (en) |
| GB (1) | GB2117195B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61207101A (en) * | 1985-03-08 | 1986-09-13 | Mitsubishi Electric Corp | Controller for electric railcar |
| JPH06106001B2 (en) * | 1989-02-07 | 1994-12-21 | 株式会社日立製作所 | Electric vehicle braking system |
| JP2564403B2 (en) * | 1989-09-20 | 1996-12-18 | 株式会社日立製作所 | Break control device for electric vehicles |
| JP2680186B2 (en) * | 1990-11-28 | 1997-11-19 | 株式会社日立製作所 | Electric car control device |
| JP3345249B2 (en) * | 1996-02-01 | 2002-11-18 | 三菱電機株式会社 | Electric car control device |
| CZ299530B6 (en) * | 2004-06-21 | 2008-08-27 | Siemens Kolejová vozidla, s. r. o. | Circuit arrangement for controlling regeneration brake of traction rail vehicles |
| EP2514626B1 (en) * | 2009-12-18 | 2019-04-24 | Mitsubishi Electric Corporation | Electric vehicle drive control apparatus |
-
1982
- 1982-03-05 JP JP57035406A patent/JPS58154304A/en active Granted
-
1983
- 1983-01-26 AU AU10793/83A patent/AU556308B2/en not_active Ceased
- 1983-01-26 GB GB08302143A patent/GB2117195B/en not_active Expired
- 1983-02-03 CA CA000420856A patent/CA1186037A/en not_active Expired
- 1983-02-22 ES ES519993A patent/ES519993A0/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ES8402210A1 (en) | 1984-02-16 |
| JPS58154304A (en) | 1983-09-13 |
| ES519993A0 (en) | 1984-02-16 |
| GB8302143D0 (en) | 1983-03-02 |
| GB2117195A (en) | 1983-10-05 |
| AU556308B2 (en) | 1986-10-30 |
| JPH0437642B2 (en) | 1992-06-22 |
| AU1079383A (en) | 1983-09-08 |
| GB2117195B (en) | 1986-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR830002738B1 (en) | Brake control | |
| CA1186037A (en) | Electrical brake system for electric rolling stock | |
| EP0488163B1 (en) | Electric vehicle control apparatus | |
| KR970061609A (en) | Electric vehicle control device | |
| JP2672911B2 (en) | Blackout detection method for AC electric vehicles | |
| JPH08191503A (en) | Control device for electric car | |
| JP3376812B2 (en) | Elevator brake control device | |
| JP2549582B2 (en) | Crane regenerative braking control circuit | |
| JP2723372B2 (en) | AC electric vehicle control device | |
| JPH07154986A (en) | Control method of electric motor | |
| JPH05252755A (en) | Inverter controlling circuit | |
| JPH0847279A (en) | Power supply regeneration circuit | |
| JPH0522618B2 (en) | ||
| JP2672885B2 (en) | Power failure detection device for AC electric vehicles | |
| JP2588385B2 (en) | Regenerative energy-discharge circuit of motor | |
| JPH056402B2 (en) | ||
| JP2553782Y2 (en) | Voltage suppression device for DC electric railway | |
| JP2938595B2 (en) | Elevator regenerative power consumption method | |
| JP2690182B2 (en) | Electric car control device | |
| JPH07231503A (en) | Retarder | |
| JPH0317588Y2 (en) | ||
| JPH02211002A (en) | Dynamic braking equipment for electric vehicle and method of controlling the same | |
| JPH0246105A (en) | AC electric car control device | |
| JPH0744761B2 (en) | Electric vehicle control device | |
| JPH0629119A (en) | Electromagnet power supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |