GB1190129A - Apparatus and Method for Generating Stopping Profile Signals for the Automatic Operation of Trains - Google Patents
Apparatus and Method for Generating Stopping Profile Signals for the Automatic Operation of TrainsInfo
- Publication number
- GB1190129A GB1190129A GB59677/68A GB5967768A GB1190129A GB 1190129 A GB1190129 A GB 1190129A GB 59677/68 A GB59677/68 A GB 59677/68A GB 5967768 A GB5967768 A GB 5967768A GB 1190129 A GB1190129 A GB 1190129A
- Authority
- GB
- United Kingdom
- Prior art keywords
- train
- counter
- output
- count
- distance
- 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
- 239000003550 marker Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 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
- B61L3/221—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using track circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
1,190,129. Automatic train control. GENERAL SIGNAL CORP. 16 Dec., 1968 [19 Dec., 1967], No. 59677/68. Heading B7N. [Also in Division G3] In an automatic braking control system for stopping trains at stations in accordance with a stopping profile, each train is brought to a halt with its mid-point opposite the mid-point of the station platform by delaying the start of braking by a distance which depends on the amount by which the train length is in excess of the smallest train length. The track 21, 22 at and in approach to the platform 20 is provided with a first transmitter SZM at a standard stopping distance D in advance of point 2 where the head of the smallest length (2 car) train is stopped, a second transmitter PEM at the start of the Station platform, a third transmitter 28 at the end of the platform, a train presence detector 27 and a wheel detector CLM at the mid point of the platform. Control apparatus 37 on the train is provided with a storage unit 50 which is set to half the number of cars in the train above the minimum number. As the train passes marker SZM the signal picked up by coils 35.36 and receiver 40 disappears and the SZM detector 41 provides an output on line 56 which sets a counter 54 to one car length and reduces the count (equal to distance D or 34 car lengths) in counter 47 by 1 car length. The detector also provides an output to enable gate 57 whereby output pulses (140 per car length) are supplied from axle pulse generator 46. When the count in counter 45 has been reduced to zero, zero detector 59 supplies a 'one' output which reduces the count in counter 47 by one, supplies a count of one to a bias counter 48 and an output via AND gate 60 which restores counter 45 to zero. Assuming a 6-car train the count stored in unit 50 is two so that on the next reduction of the count in unit 45 to zero the count in unit 47 is reduced again by one and that in bias counter 48 is increased to two, equal to that in unit 50. Comparator 49 thus supplies an output which cuts off AND gate 62 and supplies an output to gate 67 to commence stopping of the train. The output from counters 45, 47 and 48 is also connected to an A/D converter 51 and combined in operational amplifier 52 to provide a voltage which is a function of distance to go and this when supplied to a profile generator 53 supplies an output voltage VR indicative of the required speed. This is compared in unit 54 with a voltage Va from the axle driven generator 46 which is a function of actual speed to provide an error voltage to the vehicle propulsion and braking apparatus 55. At the time of enabling gate 67 the distance to go is the distance D or 34 car lengths and this is reduced by the count of the distance pulses supplied by the axle pulse generator 46 until the train is brought to a halt. The distance to go is checked as the train passes marker PEM whereby detector 44 on the train is activated to provide an output on line 69 which resets counters 45 and 47 to the distance to go from the platform end to position 2. After the train reaches the mid point C its leading axle is detected by wheel detector 23 which supplies an output which momentarily suppresses transmission by transmitter 28 and this is detected by unit 42 on the train which supplies via line 70 an output which resets counter 45 to one car length and transfers the number of car lengths in counter 48 to counter 47. Thereafter each fourth axle count, i.e. each time a car passes the station mid point a pulse is supplied via transmitter 28 and detected by detector 43 which resets the counter 45 and reduces by one the count in counter 47.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US69174167A | 1967-12-19 | 1967-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1190129A true GB1190129A (en) | 1970-04-29 |
Family
ID=24777767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB59677/68A Expired GB1190129A (en) | 1967-12-19 | 1968-12-16 | Apparatus and Method for Generating Stopping Profile Signals for the Automatic Operation of Trains |
Country Status (4)
Country | Link |
---|---|
US (1) | US3524055A (en) |
ES (1) | ES361575A1 (en) |
GB (1) | GB1190129A (en) |
NL (1) | NL161398C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3639754A (en) * | 1969-12-24 | 1972-02-01 | Gen Signal Corp | System for computing a stopping pattern signal for a vehicle |
US3731088A (en) * | 1971-02-17 | 1973-05-01 | Westinghouse Air Brake Co | Station stop control arrangement for self-propelled vehicles |
US3728539A (en) * | 1971-04-08 | 1973-04-17 | Westinghouse Electric Corp | Method and apparatus for controlling a vehicle control signal |
US4303215A (en) * | 1979-07-30 | 1981-12-01 | Alaine Maire | Device for controlling the stopping of a train |
US4302811A (en) * | 1979-09-10 | 1981-11-24 | General Electric Company | Automatic train operation with position stop and velocity control |
US5065963A (en) * | 1988-09-01 | 1991-11-19 | Daifuku Co., Ltd. | Transporting train travel control system |
CN115782847B (en) * | 2023-01-29 | 2023-06-27 | 北京全路通信信号研究设计院集团有限公司 | Method and system for determining train safety braking control flow |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3268727A (en) * | 1964-03-25 | 1966-08-23 | Gibbs & Hill Inc | Computer control for transit system |
US3297867A (en) * | 1964-05-27 | 1967-01-10 | Gen Signal Corp | Vehicle stopping control system |
US3334224A (en) * | 1964-12-14 | 1967-08-01 | Gen Electric | Automatic control system for vehicles |
US3363096A (en) * | 1965-10-23 | 1968-01-09 | Gen Signal Corp | Control system for vehicles |
-
1967
- 1967-12-19 US US691741A patent/US3524055A/en not_active Expired - Lifetime
-
1968
- 1968-12-16 GB GB59677/68A patent/GB1190129A/en not_active Expired
- 1968-12-16 NL NL6818039.A patent/NL161398C/en active
- 1968-12-18 ES ES361575A patent/ES361575A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL161398C (en) | 1980-02-15 |
NL6818039A (en) | 1969-06-23 |
US3524055A (en) | 1970-08-11 |
NL161398B (en) | 1979-09-17 |
ES361575A1 (en) | 1970-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |