SU1532384A2 - Apparatus for automatic control of train braking - Google Patents

Abstract

The invention relates to railway automation. The purpose of the invention is to improve the braking accuracy. Due to the fact that the change of the automatic locomotive signaling codes occurs with a delay, the greater the train speed, the greater the distance ΔL from the beginning of the block section, the traffic light changes. In this connection, the path meter 7 is recorded not with a fixed value of L _min , stored in memory block 10, but reduced by the value of ΔL. Length is not rewritten immediately, but after ΔT time set by timer 9. The signal for recording information in the path meter 7 is the shutdown of timer 9, the control trigger 20 is turned on, and its output through the OR element 6 receives the signal to the second input of the path meter 7, allowing the recording of the corrected length of the loop L _min from the output of the speed sensor 14 to the first input of the 7-way meter. 1 il.

Description

L value stored in memory block 10, and reduced by dB value. The length is not recorded immediately, but after a time t set by timer 9, the signal for recording information in the path meter 7 is the shutdown of timer 9, the control trigger 20 is turned on, and from its output through the OR element 6 the signal goes to the second input of the meter 7 path, allowing the recording of the corrected length of the loop from the output of the speed sensor 14 to the first input of the meter 7 path. 1 il.

The invention relates to railway automation, namely to devices for autorun braking a train.

The purpose of the invention is to improve the braking accuracy,

The drawing shows a block diagram of the device.

The device contains a transmitting antenna 2 located at the beginning of the block 1, connected to a track generator 3, and a receiving antenna 4 connected to the input of the information receiving unit 5, one of the outputs connected through an OR 6 element to one of the inputs of one of the meters 7 ways. One of the outputs of the latter is connected to one of the inputs of the AND 8 element, the output of which is connected to the input of timer 9 and one of the inputs of the memory block 10 of the minimum length of the block section, with the code of one of the inputs of the third gauge 11 of the path. Another input unit is connected to one of the outputs / decoder 12, the other output of which is connected to one of the inputs of the second gauge 13 of the path. The output of the decoder 12 is connected to another input of block 5.

The sensor 14 speed, mounted on the axle box of the wheel 15, is connected to the input of the meter 16 of the actual speed and the second inputs of the meters 7,11 and 13 ways, the last of which is connected to the second input of the element And 8 whose third input is connected to one of the outputs of the Executive unit

17. Another output last connected

with one of the inputs of the program speed block 18, the other input of the path 7 meter connected to the second output, and the output of the block 18 is connected to one of the inputs of the speed controller 19. Another input of the latter is connected to the output of the meter 16 of the actual speed.

The output of the meter 11 path is connected to one of the inputs of the trigger 20 control

0

5 About Q

d 5

0

five

Lenin, whose other input is connected to the output of timer 9, and the output of control trigger 20 is connected to another input of the element OR 6.

The device works as follows.

In the sections equipped with track generators at each spottophore, both at the station and on the stretch, when the train approaches the beginning of the block section and inductive coupling occurs between receiving 4 and transmitting 2 antennas from one output of block 5 receiving information through the OR element 6, a signal is applied to the second input of the meter 7 path. At the same time, information about the length of the block section is recorded in the gauge 7 of the path from the speed sensor 14, mounted on the axle box of the wheel 15, which is read as the train moves along the block section. Information about the distance to the end of the block section goes to another input of the program speed block 18.

Depending on the indication of the automatic locomotive signaling (LLS), the first input of block 18 receives information from one of the outputs of the executive block 17, and the output of block 18 of program speed produces a signal proportional to the permissible train speed depending on the safety conditions depending on the distance to the end block section and readings of LLS. This signal is sent to one of the inputs of the speed controller 19, to the other input of which a signal is received, which is proportional to the actual speed of the train from the upper speed gauge 16.

The speed controller 19 regulates on the basis of a comparison of the software (permissible) and actual train speeds in the sections where only the station and traffic lights are equipped with track generators. To the input of the receiving antenna A to zo5

Information about the length tmepe.f, n- lay (the block segment (the length of the station path between the SPETOPHOR)) is generated by the grid section and the antenna of the antenna 2, and also the minimum block length (the station) on the route barely following the train) about d / ishe of the haul (station), formed by the track generator 3 in the form of a sequential cyclic code. This information is received from the other output of the block 5 Receiving information 1.shi to the input / decryptor 12, where preobrleova 1ie sequence tglnogo cyclic code generated putsoym generator 3 are minimal in length block section length and playout.

At the moment when the receiver 4 came out of the zone of operation of the anteine nm 2, the RS was overwritten the information on the length of the stage (station) from the second output of the remote generator 12 to the second meter 13 of the route and the minimum length of the block section (station path) from the first the output of the decoder 12 in block 10 memory of the length of the block-part. At the same time, the minimum length of the block 1 htask, specified by the track generator 3, is defined as the minimum length of the block section on a given span (station) by deducting the length of the path. 50 m in front of the traffic light where the train stops - (the section of the fence between the traffic light and the sighting stop point), as well as the calculation that the train passes from the beginning of the block to pop, the change in the number of LLS readings from I } The highest possible speed of the train, almost equal to about 10 m.

The recorded information on the minimum length of the block section in block 17, which corresponds to the speed of the train at the beginning of the block section at the lowest possible speed, is stored on the locomotive until the end of the stage (station). Information about the length of the span, recorded in the second gauge 13 of path B at the beginning of the span (station), is then read from the speed sensor 1D so that by the end of the span (station) the distance information in the second gauge 13 becomes zero. In the presence of

323846

information about the distance in the second gauge 13 of the path from its output receives a signal to one of the inputs of the element And 8,

When changing the LLS readings at the beginning of the block (station path) from allowing to more prohibiting, from the second output of block 17 enters

IQ signal-: to the second input of the element) 1TA AND 8. In the absence of information in the meter 7, the path from the zero output receives a signal to the third input of the element 8, as a result of which a control signal is generated at the output of the element -) 5 AND 8 arriving at the second input of the memory block 10 of the minimum block length and to the input of the timer 9. By a signal from the output of the memory block 10 the minimum

20 of the block-section LD1INY is rewritten into the third meter 11 of the path of the number N, corresponding to the length of the distance (antenna 2 is proportional to the minimum length of the unit) for

25 conditions the minimum speed of the train at the beginning of the block section, and timer 9 is turned on, set to a fixed time delay At.

After the appearance of the number N in the third

 the track meter 11, this number begins to be read as the third pulse path meter arrives at the first input from the output of the speed sensor 14.

Due to the fact that the change of the / JiC codes from the resolving to the forbidding occurred: it is not instantaneously but with a delay of 1, the greater the train speed, the greater the distance i L from to. The block of the block section occurs when the locomotive traffic light changes. In this connection, in order to compensate for the distance covered by the train DB from the beginning of the block to the moment

Dg of the LLS readings change in the path meter 7 is recorded not the fixed value of the value stored in the memory block 10, but reduced by the value of AL. This is achieved by the fact that

35

shift f.oaoB LLS starts counting down Lloyg;, -; s, by train way in the third 11 n3t ;; that after the path corresponding to the MIN overwrite this length in the first Btn meter 7 path does not occur immediately, but after time dB, set by timer 9,

The fixed time l1 is calculated so that when the train speed changes to AV, the train

followed by a segment of putids, proportional to 1 and Db with a coefficient of likeness of the length of a block section to the length of the loops — Fz 1 — that is,

dk kd1,

k

Ljy i

Sha

 T mime

D1

4y fit

Thus, the higher the speed of the 11th train in relation to the zero speed, the greater the segment of the route D1, the value of which is reduced. reading recorded (.corrected)

loop length 1; tel 7 ways.

Min

First Perime

“Ai

- A 1.

The signal to write lff to the first meter 7 of the path is to turn off the timer 9, resulting in a signal from the output of timer 9 to turn on the control trigger 20 and from its output through the element OR 6 a signal is sent to the second input of the first meter 7 of the path, allowing the corrected entry the length of the loop 1 j from the output of the speed sensor 14 to the first input of the first meter 7 path.

The signals of the end of the recording in the gauge 7 of the path is the zeroing of the third gauge 11 of the path, with the result that from its output a signal arrives at the first input of the trigger 20 control

0,

five

turn it off and remove the recording release signal from the second input of the first 7 meter track.

Thus, in the first track gauge 7, the length of the loop 1 „„ -d1 is recorded and the corresponding length of the block section L L - Db, taking into account the actual speed of the train starting at the beginning of the block section. In this case, the error in recording the length of the block section, and consequently, the accuracy of braking, does not depend on the actual speed of the train.

Claims (1)

Invention Formula Device for automatic control of train braking auth. No. 1397331, characterized in that, in order to improve the braking accuracy, it is equipped with an OR element, a control trigger, a tsmmer and a third track gauge, one of the inputs of which is connected to the output of a speed sensor connected to the measuring track, the other input is the output of the memory block is the minimum length of the block section, and the output is connected to one of the control trigger inputs, the other input of which is connected to the output of the timer connected to the output of the AND element, and the output of the control trigger is connected to one of the inputs OR, the other input of which is connected to the output of the information receiving unit, and its output - to the first input of the third track gauge.