JP2656377B2 - Braking device for train cars - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking device for a train set in which an electric vehicle and an accompanying vehicle are combined, and more particularly, to an electric braking force using an electric vehicle and a mechanical device. The present invention relates to a braking device for a train set that generates a mechanical braking force in an accompanying vehicle by generating a mechanical braking force.

2. Description of the Related Art Electric vehicles (sometimes abbreviated as M vehicles) and accompanying vehicles (T
Trains may be abbreviated as cars).
2. Description of the Related Art Conventionally, electric braking (ie, regenerative braking and power generation braking) and mechanical braking of an electric vehicle are combined with mechanical braking of an accompanying vehicle to generate a braking force required for the entire train. A brake control device has been implemented. In general, the electric brake force of the electric vehicle is used as much as possible, the brake force including the brake force to be shared by the accompanying vehicle is borne, and the shortfall is supplemented by the mechanical brake force of the accompanying vehicle. When the electric brake is a regenerative brake, control is performed to increase the amount of regenerative electric power, save energy, and reduce the degree of wear of the mechanical brake. Power generation brakes dissipate brake energy as heat to resistors.

Such a typical prior art is disclosed in JP-B-58-2521. In such prior art, it is desired that as much braking force as possible is borne by electric braking force and mechanical braking force is reduced to prevent wear such as brake shear due to frictional force of the mechanical brake as much as possible. .

SUMMARY OF THE INVENTION An object of the present invention is to provide a brake device for a train train in which as much of the necessary braking force as possible can be borne by an electric braking force.

Means for Solving the Problems The present invention relates to a brake device for a train set in which a plurality of electric vehicles that generate an electric braking force and a mechanical braking force and a plurality of accompanying vehicles that generate a mechanical braking force are combined. , A load detector 1a for detecting a load between each electric vehicle and each accompanying vehicle
To 1d, a speed detector 8 for detecting the speed of the train, a first calculating means for calculating a braking force A required in the train, a load detector 1a, 1b and a speed detector 8 for the electric vehicle. In response to the output of the second vehicle, the second calculating means for obtaining the maximum braking force Bi of each electric vehicle that does not slide, and in response to the output of the auxiliary vehicle load detectors 1c and 1d and the speed detector 8, Non-sliding mechanical maximum braking force Fj
And a fourth calculating means for calculating the sum B of the maximum brakes Bi of each electric vehicle.
The sum of the maximum braking force Bi that can be generated by the electric vehicle exceeds the required braking force A in response to the outputs of the calculating means and the first and fourth calculating means; Bi
1, In response to the output of the fifth computing means, the maximum value Ci of the electric braking force of the electric vehicle is determined by the shared braking force Bi1 of the electric vehicle.
In each of the electric vehicles described above, the shared braking force Bi1
In response to the output of the first control means for generating the electric braking force only by the electric braking force and the output of the fifth calculating means, the maximum value Ci of the electric braking force of each electric vehicle is changed to the shared braking force Bi1
In the electric vehicle with supplementary braking force, the maximum value Ci of the electric braking force of each electric vehicle with supplementary braking force is generated by the electric braking force, and the supplementary braking force Di, Di = Bi1-Ci is calculated. A second control means for generating the supplementary braking force Di by the mechanical braking force of the electric vehicle, and an electric vehicle capable of generating the supplementary braking force in response to the outputs of the first and fourth arithmetic means. When the total sum B of the maximum braking forces Bi is equal to or less than the required braking force A, each electric vehicle controls the electric braking force to the maximum value Ci and generates the maximum braking force that can be generated by each electric vehicle. A third control means for generating a mechanical braking force Di so as to be Bi; and a total sum B of a maximum braking force Bi that can be generated by the electric vehicle in response to outputs of the first and fourth arithmetic means. When the required braking force is less than A Sixth calculating means for calculating the sum E of supplementary braking forces, E = A-B, and in response to the output of the sixth calculating means, the total sum E of the supplementary braking forces is equally divided in each auxiliary vehicle to provide mechanical braking. Initial value of force
A seventh calculating means for obtaining G0; and an initial value G0 in response to the outputs of the third and seventh calculating means.
In the first accompanying vehicle exceeding the maximum braking force Fj of each accompanying vehicle, the fourth controlling means for generating the maximum braking force Fj by mechanical braking force, and responding to the outputs of the third and seventh calculating means. And the initial value G0
Is less than or equal to the maximum braking force Fj of each accompanying vehicle, the braking force (G0-F
j) is obtained by adding a new mechanical braking force G (r + 1) by adding the initial value G0 to the initial value G0 by the second accompanying vehicle by the equal share.
Calculating means, and in response to the output of the eighth calculating means, in a part of the second auxiliary vehicle, wherein the new mechanical braking force G (r + 1) exceeds the maximum braking force Fj of the second auxiliary vehicle, In response to the output of the fifth control means for generating the maximum braking force Fj by the mechanical braking force and the output of the eighth computing means, the new mechanical braking force G (r + 1) is equal to or less than the maximum braking force Fj. In the remainder of the second subsidiary vehicle, the braking force (Gr-Fj) exceeded by the part of the second subsidiary vehicle is divided by the new mechanical braking force in equal parts by the remaining second subsidiary vehicle. G (r
+1) to obtain a further new mechanical braking force. The operation of the fifth control means and the ninth calculating means is repeated to generate a mechanical braking force by each accompanying vehicle. It is a brake device of a train set characterized by making it.

According to the present invention, an electric vehicle generates an electric braking force and a mechanical braking force, and an accompanying vehicle generates a mechanical braking force, calculates a required braking force A, and applies the braking force to a plurality of electric vehicles. When the total sum B of the maximum braking force Bi that can be generated by the vehicle exceeds the required braking force A, each electric vehicle increases the electric braking force as much as possible, and the shortage is caused by the mechanical braking of the electric vehicle. The maximum braking force Bi that can generate the required braking force A by borne by the force
A braking force Bi1 shared by the ratio is generated. In this way, in the electric vehicle, as much electric braking force as possible is generated, so that the mechanical braking force is reduced to zero or small. Is possible. If the electric brake is a regenerative brake, energy saving can be achieved.

According to the present invention, when the total sum of the maximum braking forces Bi that can be generated by the electric vehicle is equal to or less than the required braking force A,
For each electric vehicle, the electric braking force is the maximum value Ci for each electric vehicle.
The shortfall is compensated for by the mechanical braking force to obtain the maximum braking force Bi that can be generated by each electric vehicle, and the remaining braking force E (= AB) is calculated as follows.
The equal braking force G0 equal to or less than the maximum mechanical braking force Fj that can be generated by the accompanying vehicle is obtained by sharing, so that the electric braking force of the electric vehicle becomes the maximum value Ci.
The mechanical braking force can be reduced.

Further according to the present invention, the uniform braking force G0,
When the equivalent mechanical braking force G0 exceeds the maximum mechanical braking force Fj when the auxiliary mechanical vehicle exceeds the maximum mechanical braking force Fj, the auxiliary mechanical vehicle generates the maximum mechanical braking force Fj and applies the excessive braking force. The force (G0-Fj) is evenly added and shared by the remaining accompanying vehicles. As a result, as described above, the electric braking force can be increased as much as possible, and in the accompanying vehicle, the mechanical braking force can be shared as evenly as possible.

Embodiment FIG. 1 is a block diagram of one embodiment of the present invention. This train is composed of a plurality of (two in this embodiment) electric vehicles M1, M
2 and one or more (two in this embodiment) accompanying vehicles T1, T2
Are combined to form a train. In this embodiment, the braking force borne by the electric vehicles M1 and M2 is maximized as much as possible, the regenerative braking is performed among the electric brakes to enhance the energy saving effect, and the mechanical braking force of the accompanying vehicles T1 and T2 is used. A certain supplementary braking force is to be the same as much as possible for each of the accompanying vehicles T1 and T2,
It can be made substantially the same between the accompanying vehicles T1 and T2. In the following description, corresponding components are denoted by the same reference numerals with subscripts a to a.
The subscripts a to d are omitted when indicated collectively by d. One electric vehicle M1 is provided with a brake control circuit 3 implemented by a microcomputer or the like for controlling the entire brake, and a motor control circuit 4a for controlling the motor 5a is connected to the brake control circuit 3. . The mechanical brake means 7a is controlled by a brake control circuit 6a. The driver's cab is provided with brake command signal generating means 10. A vehicle speed signal is generated from a speed detector 8 for detecting the speed of the train, and each vehicle M1, M2, T1, T
Each of the load detection means 1a to 1d is provided with a load detection means 1a to 1d, and these load detection means 1a to 1d generate a signal representing each load of each vehicle M1, M2, T1, T2. Furthermore, the electric vehicle M1 is provided with a temperature sensor 2 to generate a signal indicating the outside air humidity,
It is provided to the brake control circuit 3. From the motor control circuit 4a, the electric braking force generated by the motor 5a is also detected and applied to the brake control circuit 3. The brake control circuit 3 outputs signals from the brake command signal generation circuit 10, the speed detector 8, the outputs from the load detection means 1a to 1d and the humidity sensor 2, and the signals indicating the electric braking force from the motor control means 4a and 4b. The brake control means 3 receives and calculates the command signal and generates a command signal for generating an electric braking force to the motor control circuits 4a and 4b based on the calculation result.
A command signal for generating a mechanical braking force for each vehicle M1, M2, T1, T2 is given to the mechanical brake converting means 6a to 6d of M1, M2, T1, T2. Mechanical brake conversion means 6a to 6d
Converts the mechanical braking force to be generated into pneumatic pressure or hydraulic pressure in response to a command signal from the brake control circuit 3 and gives it to the mechanical brake means 7a to 7d. Electric car M2
Does not include the humidity sensor 2 and the brake control means 3, but the other configuration is the same as that of the electric vehicle M1 described above.

The driver's cab is provided with display means 9 for displaying that the braking force is insufficient.

FIG. 3 is a diagram showing the distribution of the braking force generated by one or more electric vehicles M1, M2 and one or more auxiliary vehicles T1, T2, and FIG. It is a flowchart for explaining an operation. Step
From step l1 to step l2, a brake command signal from the driving second brake command signal generating means 10, a vehicle speed signal from the vehicle speed detector 8, and a load detector for detecting the load of each vehicle M1, M2, T1, T2. The brake control circuit 3 receives the load signals from 1a to 1d and the humidity signal from the humidity sensor 2.

In the next step l3, the braking force A required for the train set is calculated. Further, the maximum non-sliding braking force Bi (i = 1 to m, where m = 2 in the present embodiment) of the electric vehicles M1 and M2 is applied to the braking coefficient K1 obtained from FIG.
Ask from.

Bi = Wi · K1 (1) Wi is a load detected by the load detectors 1a and 1b. The brake coefficient K1 depends on the humidity detected by the humidity sensor 2 and changes depending on the speed V detected by the speed detector 8. Such a non-sliding maximum braking force is the same for the accompanying vehicles T1 and T2. The maximum braking force Bi that does not slide using the load, humidity and vehicle speed as parameters is stored in advance in the brake control circuit 3 as a table, and the maximum braking force Bi that can be generated is stored.
From the memory table. Similarly, the non-sliding maximum braking force Fj (j = 1) in each of the accompanying vehicles T1 and T2.
To n, where n = 2 in the present embodiment, is read from the memory table in the same manner as in the above-described first formula.

Thereafter, the total sum B of the maximum braking forces Bi that can be generated by the electric vehicles M1 and M2 is calculated based on the second equation.

In step 14, when it is determined that the third equation is satisfied, A <B (3), that is, when the sum B exceeds the required braking force A, the electric braking force is minimized in each of the electric vehicles M1 and M2. The required braking force A is generated as the braking force Bi1 shared by the ratio of the maximum braking force Bi that can be generated, based on the fourth formula, so as to increase.

In step l6, the motor control means 4a,
At 4b, a command signal is generated from the brake control circuit 3 so that the braking force Bi1 is generated. In step l7, the maximum value Ci of the electric braking force of the motors 5a and 5b of the electric vehicles M1 and M2 is determined.
Determines whether or not the braking force is less than Bi1, that is, whether or not the fifth equation is satisfied.

Ci <Bi1 (5) If it is determined in step 17 that the fifth equation is established, then in step 18 the supplementary braking force Di of each electric vehicle M1, M2 is calculated based on the sixth equation, and this supplementary braking is performed. The mechanical brake converting means 6a, 6b are controlled so that the force Di is generated by the mechanical brake means 7a, 7b.

Di = Bi1−Ci (6) When the fifth formula is not satisfied in step 17, that is, when the maximum value Ci of the electric braking force of each of the electric vehicles M1 and M2 is equal to or greater than the braking force Bi1 to be shared, each electric motor is driven. Car M1,
In M2, the braking force Bi1 to be shared is generated only by the electric braking force.

At the next step 14, it is determined whether or not the seventh equation is satisfied. When the seventh equation, A ≧ B (7) is satisfied, the motor control means 4a, 4b of each electric vehicle M1, M2 is determined.
The maximum braking force B that can be generated by each electric vehicle M1 and M2
Command i. In step 110, it is determined whether the maximum value Ci of the electric braking force of the motors 5a, 5b in each of the electric vehicles M1, M2 is less than the maximum braking force Bi that can be generated.

Ci <Bi (8) In step 110, when it is determined that the eighth equation holds, the process proceeds to step 111, where the supplementary braking force Di in each of the electric vehicles M1 and M2 is calculated based on the ninth equation. A command signal is given to the mechanical brake converting means 6a, 6b of the electric vehicles M1, M2 to generate mechanical braking force Di by the mechanical brake means 7a, 7b, respectively.

Di = Bi−Ci (9) When the total sum B of the maximum braking forces Bi that can be generated by the electric vehicles M1 and M2 in this way is equal to or less than the required braking force A, that is, when the seventh formula is established, Each electric car M1, M2
Generates a mechanical braking force Di such that the electric braking force becomes the maximum value Ci and the maximum braking force Bi that can be generated by each of the electric vehicles M1 and M2.

When Expression 8 is not satisfied in Step l10, that is, when Ci ≧ Bi (10) is satisfied, the process proceeds to Step L12 without going through Step L11.

In step l12, in order to achieve the remaining braking force E by the supplementary braking force of all the accompanying vehicles T1 and T2,
The sum E of the supplementary braking force is calculated.

E = AB (11) In step 113, an initial value G0 of the mechanical braking force is calculated for the accompanying vehicles T1 and T2 at an equal rate.

Here, n is the number of the accompanying vehicles T1 and T2, and is 2 in this embodiment as described above.

In step 114, k = n and L1 to Ln are set to 0. The brake control is performed so that the values L1 to Ln become the maximum braking force Fj (j = 1, 2 in the present embodiment) at which the mechanical braking force of the accompanying vehicles T1, T2 does not slide in step l20 as described later. When prescribed to be performed, 1
It is said.

In step l15, j = 0 is set, and in the next step l16, j is incremented by one. At step 117, it is determined whether the value Lj = 0, and if it is 0, step l1 is executed.
Proceeding to 8, it is determined whether Expression 13 is satisfied. Numeric L
1 to Ln are set so that a mechanical braking force BTj, which will be described later, is defined in step 120 to limit the maximum braking force, and is skipped in step 117 in subsequent calculations.

Gr ≦ Fj (13) where Gr represents the calculated braking force, and r = 0, 1, 2,
... When Expression 13 is satisfied, that is, the accompanying vehicles T1 and T
Calculated value Gr of mechanical braking force to be generated in 2
Is less than the maximum non-sliding braking force Fj of each of the accompanying vehicles T1 and T2, the process proceeds to step l19, and the value Gr is set to the mechanical braking force BTj to be generated by the accompanying vehicles T1 and T2,
Determine.

BTj = Gr (14) When it is determined in step l18 that the above-mentioned formula 13 does not hold, that is, when Gr> Fj (15) holds, the process proceeds to step l20, and the accompanying vehicles T1, T2
The mechanical braking force BTj at is set to the maximum value Fj.

BTj = Fj (16) In the next step l21, the value Lj is set to 1 and the value k is decremented by 1. At step l23, a shortage (Gr-Fj) is added to the previously determined mechanical braking force Gr by a uniform rate to obtain a new mechanical braking force G (r + 1), and thereafter, the process returns to step l15 again.

In this way, the remaining braking force E is applied to the accompanying vehicles T1, T
The operation of sharing the braking force G0 equal to or less than the maximum mechanical braking force Fj that can be generated in step 2
Perform in.

When the equal braking force G0 exceeds the maximum mechanical brake Fj of the accompanying vehicles T1 and T2, the equal braking force
Follower vehicles T1 and T2 where G0 exceeds the maximum mechanical braking force Fj
Then, the maximum mechanical braking force Fj is generated, and the excessive braking force G0-Fj is equally added and shared by the remaining accompanying vehicles T1 and T2 as shown in the above-described step l23. G0, G1, G2,... Are obtained by generating the above and repeating such an operation.

When the value j exceeds the value n, the process proceeds to step l25.
Command the mechanical brake conversion means 6c, 6d of each accompanying vehicle T1, T2 to generate the maximum braking force Fj specified for each accompanying vehicle T1, T2, and generate the maximum mechanical braking force Fj. . When it is determined in step l26 that the sum of the mechanical braking forces BTj to be generated in the accompanying vehicles T1 and T2 is less than the remaining braking force E, no more braking force is generated,
Therefore, assuming that the braking force is insufficient, the display means 9 indicates that the braking force is insufficient.

FIG. 3 (1) shows a state in which the electric brake cannot bear the entire braking force of the electric vehicle in a train composed of one electric vehicle and one accompanying vehicle. At this time, the above-described operations of steps l17 → l27 → l25 are performed.

In FIG. 3 (2), a train is composed of one electric vehicle and two accompanying vehicles, and the mechanical braking force of the accompanying vehicle is less than or equal to the sliding upper limit for both of the accompanying vehicles. A = B + G0 + G0 (19) At this time, the above-described operations of steps l18 → l19 are performed.

FIG. 3 (3) shows a case where a train is composed of one electric vehicle and two accompanying vehicles, and one vehicle T1 of the accompanying vehicle satisfies F1 <G0 (20). During this operation, step l2 in FIG.
0, l18 → l20, where the mechanical braking force H1 is: H1 = G0−F1 (21) In step 23, a new mechanical braking force G1 is obtained in the accompanying vehicle T2.

G1 = G0 + H1 (22) Here, A = B + F1 + G1 (23) FIG. 3 (4) shows a train composed of two electric vehicles and two accompanying vehicles, and the required braking force is only the electric vehicle. Is insufficient, and shows the state when the remainder is equally shared by the accompanying vehicles T1 and T2, and the above-mentioned step 119 is achieved. Here, the required braking force A is A = B1 + B2 + G0 + G0 (24) FIG. (5) consists of two trains, the electric cars M1 and M2, and the two cars T1 and T2, and the vehicle M1 and M2 alone can afford all the necessary braking force A and can afford. Is shown. At this time, steps l7 → l8 in FIG.
Is achieved. Brake force D1 to be shared by electric vehicles M1 and M2
1, D21 is shown by the formulas 25 and 26, and the required total braking force A is shown by the formula 27.

A = B11 + B21 (27) FIG. 3 (6) shows that a train train is composed of one electric vehicle M and three accompanying vehicles T1, T2, T3, and among the three accompanying vehicles T1, T2, T3. This shows a case where F2 <G0 (28) in one of the accompanying vehicles T2. Steps l18 → l19 and steps l18 → l20 described above are executed, and the forces G1 and G2 are as shown in the equations (29) and (30).
Is as shown in Equation 31.

G1 = G0 + H2 / 2 (29) H2 = G0-F2 (30) A = B + G1 + F1 + G1 (31) FIG. 3 (7) shows one electric vehicle M and three auxiliary vehicles T1, T2, and T3. , The associated vehicle T1 of the associated vehicles T1, T2, T3 is F1 <G0 (32), and the associated vehicle T2 is F2 <G1 (33). At this time, steps l19 and l23 are executed twice each. The total braking force A required at this time is as shown in Expression 34.

A = B + F1 + F2 + G2 (34) Further, FIG. 3 (8) shows that one electric vehicle M and one accompanying vehicle T1, T
2 and T3 form a three-car train. For the accompanying vehicle T1, F1 <G0 ... (35), for the accompanying vehicle T2, F2 <G1 ... (36), and for the accompanying vehicle T3, F3 <G2 (37), indicating that the braking force has become insufficient as a whole. All necessary braking forces A are shown in equation 38.

A> B + F1 + F2 + F3 (38) Instead of generating regenerative braking force by the motors 5a and 5b, a resistor may be connected to obtain power generation braking force.

The configuration in which the means for determining the maximum brake force that can be generated is based on a table based on parameters such as humidity, speed, and load is shown only as an embodiment, and may be realized by another configuration.

As described above, according to the present invention, it is possible to generate an electric braking force and a mechanical braking force by an electric vehicle, and to generate a mechanical braking force by an accompanying vehicle. Possible, and the total braking force B that can be generated by the electric vehicle
However, when the required braking force A exceeds the required braking force A, each electric vehicle generates the braking force Bi1 by sharing the required braking force A at the ratio of the maximum braking force Bi that can be generated by the electric vehicle. In each electric vehicle, the electric braking force is controlled so as to be as large as possible, so that the mechanical braking force is reduced, so that the wear such as a brake shoe is reduced and the structure can be downsized. Become like

According to the present invention, the sum B is equal to the required braking force A.
In the following cases, each electric vehicle generates a mechanical braking force Di so that the electric braking force becomes the maximum value Ci and the maximum braking force Bi that can be generated by each electric vehicle,
Further, the remaining braking force E is shared by a uniform braking force G0 equal to or less than the maximum mechanical braking force Fj that can be generated by the accompanying vehicle, whereby the electric braking force is generated as large as possible. .

Furthermore, according to the present invention, when the equal braking force G0 exceeds the maximum mechanical braking force Sj of the accompanying vehicle, the control unit sets the maximum mechanical braking force Fj in the accompanying vehicle that exceeds the maximum mechanical braking force Fj. Generated and exceeded braking force (G0-F
j) is equally generated by the remaining trailing vehicles and shared and generated, so that the mechanical braking force of the trailing vehicles can be made as uniform as possible.

In particular, according to the present invention, it is important to make the mechanical braking force of the accompanying vehicle as uniform as possible. As a result, the wear of the brake shoe due to the frictional force of the mechanical brake can be equalized for each accompanying vehicle, and an excellent effect that maintenance is facilitated is achieved.

[Brief description of the drawings]

FIG. 1 is an overall block diagram of one embodiment of the present invention, FIG. 2 is a graph showing a relationship between a braking coefficient K1, humidity and speed V, and FIG. 3 is a sharing of braking force between an electric vehicle and an accompanying vehicle. FIG. 4 is a flow chart for explaining the operation of the embodiment shown in FIG. 1 to FIG. 1a to 1d: load detector, 2: humidity sensor, 3: brake control circuit, 4a, 4b: motor control circuit, 5a, 5b: motor, 6a to 6d: mechanical brake conversion means, 7a ~ 7d ……
Mechanical brake means, 8: speed detector, 9: brake force insufficient display means, 10: brake command signal generating means,
M1, M2 …… Electric vehicles, T1, T2 …… Attached vehicles

Claims (1)

(57) [Claims] 1. A braking system for a train set in which a plurality of electric vehicles that generate an electric braking force and a mechanical braking force and a plurality of accompanying vehicles that generate a mechanical braking force are combined. Load detectors 1a to detect the load with each accompanying vehicle
1d, a speed detector 8 for detecting the speed of the train, a first calculating means for calculating a braking force A required for the train, and a load detector 1a, 1b and a speed detector 8 for the electric vehicle. A second calculating means for obtaining a maximum braking force Bi of each electric vehicle that does not slide according to the output; and an output of each of the accompanying vehicle load detectors 1c and 1d and the speed detector 8 so that each accompanying vehicle does not slide. A third calculating means for obtaining a mechanical maximum braking force Fj; a fourth calculating means for obtaining a sum B of the maximum brakes Bi of each electric vehicle; When the sum B of the maximum braking force Bi that can be generated by the vehicle exceeds the required braking force A, the shared braking force Bi of each electric vehicle
1, And in response to the output of the fifth calculating means, the maximum value Ci of the electric vehicle's electric braking force is greater than or equal to the shared braking force Bi1 of the electric vehicle. In response to the output of the first control means for generating the shared braking force Bi1 solely by the electric braking force, and the output of the fifth calculating means, the maximum value Ci of the electric braking force of each electric vehicle is determined by the sharing of the electric vehicle. In a brake-supplemented electric vehicle having a braking force less than Bi1, a maximum value Ci of the electric braking force of each of the braking force-supplying electric vehicles is generated by the electric braking force, and the supplementary braking force is generated.
Di, Di = Bi1−Ci are obtained, and the supplementary braking force Di is responded to the output of the second control means for generating the supplementary braking force by the mechanical braking force of the electric vehicle and the first and fourth arithmetic means. When the sum B of the maximum braking force Bi that can be generated by the electric vehicle is equal to or less than the required braking force A, each electric vehicle is controlled so that the electric braking force becomes the maximum value Ci, and Mechanical braking force so that the maximum braking force Bi
When the total B of the maximum braking force Bi that can be generated by the electric vehicle in response to the output of the third control means for generating Di and the output of the first and fourth calculation means is equal to or less than the required braking force A, a supplementary explanation is given. A sixth calculating means for calculating a sum E of braking forces, E = A-B; and a mechanical braking force in which, in response to an output of the sixth calculating means, the total sum E of the supplementary braking forces is equally divided in each of the accompanying vehicles. Initial value of G0
And in response to the outputs of the third and seventh computing means, the maximum braking force Fj of the first accompanying vehicle whose initial value G0 exceeds the maximum braking force Fj of each accompanying vehicle. In response to the output of the fourth control means, which is generated by the braking force, and the outputs of the third and seventh computing means, in the second auxiliary vehicle whose initial value G0 is equal to or less than the maximum braking force Fj of each auxiliary vehicle, Excessive braking force of the first accompanying vehicle (G0-Fj)
Calculating means for obtaining a new mechanical braking force G (r + 1) obtained by adding the initial value G0 to the initial value G0 by the second accompanying vehicle by the second accompanying vehicle; and in response to the output of the eighth calculating means, The mechanical braking force G (r + 1) is the maximum braking force of the second accompanying vehicle.
Fifth control means for generating the maximum braking force Fj by mechanical braking force in a part of the second auxiliary vehicle exceeding Fj, and in response to an output of an eighth computing means, In the remainder of the second accompanying vehicle in which the braking force G (r + 1) is equal to or less than the maximum braking force Fj, the braking force (Gr-Fj) that has been exceeded by the part of the second accompanying vehicle is replaced by the remaining second accompanying vehicle. The new mechanical braking force G (r +
And a ninth calculating means for obtaining a new mechanical braking force by adding to (1). The operation of the fifth control means and the ninth calculating means is repeated to generate a mechanical braking force by each accompanying vehicle. A brake device for a train set, wherein