GB975493A - Control system for railway trains - Google Patents
Control system for railway trainsInfo
- Publication number
- GB975493A GB975493A GB29701/63A GB2970163A GB975493A GB 975493 A GB975493 A GB 975493A GB 29701/63 A GB29701/63 A GB 29701/63A GB 2970163 A GB2970163 A GB 2970163A GB 975493 A GB975493 A GB 975493A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- voltage
- relay
- train
- resistor
- 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
- 238000004804 winding Methods 0.000 abstract 3
- 230000001133 acceleration Effects 0.000 abstract 2
- 230000003111 delayed effect Effects 0.000 abstract 2
- 230000003137 locomotive effect Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000005284 excitation Effects 0.000 abstract 1
- 230000002441 reversible effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/16—Continuous control along the route
- B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
- B61L3/24—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits
- B61L3/246—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits using coded current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/40—Adaptation of control equipment on vehicle for remote actuation from a stationary place
-
- 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
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
975,493. Control of D.C. motors. GENERAL SIGNAL CORPORATION. July 26, 1963 [Sept. 14, 1962], No. 29701/63. Heading H2J. [Also in Division G3] A system for automatically controlling a railway locomotive of the diesel-electric type comprises means for computing the power required to be exerted by the vehicle to adjust the speed to a desired value, and means for adjusting the power exerted by the vehicle to equality with said computed power. The rails are energized at various pulse rate codes selected in accordance with predetermined desired speeds for the train. When a medium speed track code rate is received by coils RC, relay 120R is picked up to energize relay 120RP, and relay START, a relay DIST ensuring that the entire train is moving before the higher throttle settings are called for. Resistor 51 is present to call for the third throttle power setting, the voltage developed thereacross being applied through wire 28 to positioner MP1, the wire being earthed until the brakes are released. Relay EPVR-L is energized so that valve EPV-L releases the vehicle brakes, the positioner MP1 causing reversible motor RM1 to operate arm 26 towards the + 3 position on resistor 27. When the arm 26 reaches the + 1 position, its advance is delayed by relay ODD-BP which has a slow release due to capacitors C1-C3 which are associated with its coil. However, if the speed of the train is above a predetermined value, the delay time of the relay OCC-BP is reduced. Similarly, the arm 26 is delayed at the + 2 position of control resistor 27. During movement of the arm 26, the throttle power setting is gradually increased due to selective operation of cam switches TCC-TC7, the control wires WEX, WAV, WCV being energized in sequence, and resistor LRR being adjusted to increase the excitation of field winding BF of traction generator MG. The train speed is detected by axle-driven frequency generator ADFG, converter 75 providing a voltage analogue of the speed for picking up relay DIST when the integrated voltage exceeds a predetermined value. When relay DIST picks up, relay START drops to change the demand speed from two to twenty-five miles per hour. The demand speed is pre-set at two miles per hour by connecting torque motor TM to a tapping on resistor 80, the analogue of the actual speed being connected to the other side of the torque motor. A plurality of cam switches D + “-D-4 are operated by the torque motor selectively in accordance with the magnitude of the deviation between the actual and demand speeds. When the demand speed is increased, motor RM1 moves the arm 26 towards the + 8 position on resistor 27, the throttle being advanced. The rate of advance is controlled by speed-registering relays 2.5 SR-20 SR associated with motor control wires WAV-WDV, the relays being selectively energized by cam switches CS3. The selective energization of the speed-registering relays is effected by comparing the voltage representing the actual speed with a reference voltage from potentiometer 93 at positioner MP4 associated with motor RM4. The horse-power developed by the traction motors is detected by measuring the voltage and current outputs from main generator MG, and applying appropriate signals to multiplier 108 associated with amplifier 109, the voltage derived from tap 111 being an analogue of the actual horse-power. The voltage appearing across resistor 116 is proportional to the quotient of the actual horse-power and speed, the voltage analogue of the actual tractive effort being applied to adder 119 which also receives a signal representing the inertial force of the train, i.e. the product of mass and acceleration. The acceleration is detected by differentiating the speed analogue voltage in circuit 120 associated with amplifier 122 whose output represents the inertial force, a sign chamber 125 being provided. The output of adder 119 represents the rolling resistance of the train and is applied to multiplier 128 which also receives a voltage proportional to the demand speed multiplied by a constant relating hose-power to tractive effort. The output of multiplier 128 is a voltage analogue of the horse-power necessary to maintain the train at the desired speed, and is used to control motor RM1 to call for the proper throttle setting or dynamic braking necessary to maintain the desired speed. The load regulator LRR attempts to maintain a constant generator load on the diesel engine for a given throttle setting. When the train speed exceeds the demand speed by one-quarter miles per hour, relay D + “R opens to energize over-riding solenoid ORS to adjust the regulator LLR towards the minimum field position until the overspeed condition is removed. If the actual speed stays excessive, the throttle setting is altered. Similarly, if the train speed drops below the demand value, the regulator LRR is adjusted to increase the generator voltage, followed by advance of the throttle, if necessary. If the computed horsepower calls for dynamic braking, the arm 26 is operated downwardly on resistor 27 to positions -1 to -5 wherein contactors DB1-DB2 are operated. Resistors DG are connected across motor armatures TMA, and resistor DBR is connected to supply selected voltages to field winding BF. The motor field windings are now supplied from generator MG. If the actual speed exceeds the demand speed by a certain amount, a service application of the air brakes is initiated, the motor RM1 being returned to the " idle " position. An emergency application of the brakes is provided if the service brake application is not effected within a set period. Oscillator 178 provides an output signal to amplifier 179 which passes a signal under over-speed conditions to apply the emergency brake. When the train is travelling at fifty miles per hour and the code rate received by coils RC calls for a reduction to twenty-five miles per hour, a thirty miles per hour over-speed filter is connected to amplifier 179 so that relay C drops followed by dropping of relays D + “R - D + 4R. This initiates a service application of the air brakes which are released substantially at the same time as the speed reaches twentyfive miles per hour. If the demand speed is decreased to zero, the brakes are applied and the throttle returned to the " idle " position. Below a certain speed, the air brakes are released and an independent locomotive brake is applied.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US223670A US3240929A (en) | 1962-09-14 | 1962-09-14 | Control system for railway trains |
Publications (1)
Publication Number | Publication Date |
---|---|
GB975493A true GB975493A (en) | 1964-11-18 |
Family
ID=22837532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29701/63A Expired GB975493A (en) | 1962-09-14 | 1963-07-26 | Control system for railway trains |
Country Status (4)
Country | Link |
---|---|
US (1) | US3240929A (en) |
ES (1) | ES291263A1 (en) |
GB (1) | GB975493A (en) |
NL (1) | NL153132B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL23119A (en) * | 1964-03-17 | 1968-08-22 | Deane S | Apparatus for the remote electronic control of vehicle speeds |
US3403634A (en) * | 1964-07-22 | 1968-10-01 | Docutel Inc | Automatically controlled railway passenger vehicle system |
US3393994A (en) * | 1964-09-28 | 1968-07-23 | Givaudan Corp | Method of controlling weeds |
US3334224A (en) * | 1964-12-14 | 1967-08-01 | Gen Electric | Automatic control system for vehicles |
US3519805A (en) * | 1967-11-29 | 1970-07-07 | Westinghouse Electric Corp | Vehicle stopping control apparatus |
US3655962A (en) * | 1969-04-01 | 1972-04-11 | Melpar Inc | Digital automatic speed control for railway vehicles |
US3953714A (en) * | 1972-09-22 | 1976-04-27 | Agence Nationale De Valorisation De La Recherche (Anvar) | Method of and means for controlling the movement of self-propelled bodies traveling in a fixed order along a track |
US4042810A (en) * | 1975-01-25 | 1977-08-16 | Halliburton Company | Method and apparatus for facilitating control of a railway train |
US4041283A (en) * | 1975-07-25 | 1977-08-09 | Halliburton Company | Railway train control simulator and method |
US4827438A (en) * | 1987-03-30 | 1989-05-02 | Halliburton Company | Method and apparatus related to simulating train responses to actual train operating data |
US4853883A (en) * | 1987-11-09 | 1989-08-01 | Nickles Stephen K | Apparatus and method for use in simulating operation and control of a railway train |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2163520A (en) * | 1937-03-16 | 1939-06-20 | Harry W Richards | Railway signal device and train control |
US2583131A (en) * | 1949-02-16 | 1952-01-22 | English Electric Co Ltd | Engine-driven electric generating plant |
US2551438A (en) * | 1950-02-24 | 1951-05-01 | Gen Motors Corp | Generating electric traction and control system |
US2831632A (en) * | 1950-11-04 | 1958-04-22 | Westinghouse Electric Corp | Electronic speed controlling apparatus |
US2907892A (en) * | 1956-12-17 | 1959-10-06 | Gen Motors Corp | Power train control |
US2980036A (en) * | 1957-07-02 | 1961-04-18 | Westinghouse Electric Corp | Traction-motor acceleration and dynamic-braking control |
US3072785A (en) * | 1960-04-21 | 1963-01-08 | Gen Railway Signal Co | Remote control system for vehicles |
US3096056A (en) * | 1961-01-25 | 1963-07-02 | Westinghouse Air Brake Co | Locomotive remote control system |
US3041448A (en) * | 1961-02-20 | 1962-06-26 | Westinghouse Air Brake Co | Automatic train operation system |
-
1962
- 1962-09-14 US US223670A patent/US3240929A/en not_active Expired - Lifetime
-
1963
- 1963-07-26 GB GB29701/63A patent/GB975493A/en not_active Expired
- 1963-08-31 ES ES0291263A patent/ES291263A1/en not_active Expired
- 1963-09-10 NL NL63297674A patent/NL153132B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US3240929A (en) | 1966-03-15 |
NL153132B (en) | 1977-05-16 |
ES291263A1 (en) | 1963-12-01 |
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