JP2007313933A - Brake control method for organization train - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce abrasion of a wheel of a vehicle continued to a leading vehicle. <P>SOLUTION: In the brake control method for an organization train for operating braking force, braking force instructed by a brake instruction signal is burdened in every vehicle 1-4 based on a stress load signal corresponding to the weight of the respective vehicles 1-4 in the organization train 5 connected with a plurality of vehicles 1-4, when a rainy weather signal meaning the time of rainy weather is inputted, the braking force burdened in the every vehicle 1-4 is operated while making the stress load signal of the leading vehicle 1 to a value obtained by multiplying a predetermined reduction coefficient larger than 0 and smaller than 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a brake control method for a train train in which a train train in which a plurality of vehicles are connected is configured to reduce a brake force that a leading vehicle bears based on an applied load signal when it rains.

  In the conventional brake control method for train trains, the share of the target torque in the intermediate vehicle of the train train is the largest, and each vehicle is generated so that the share of the target torque decreases as the intermediate vehicle becomes the leading vehicle and the rear vehicle. The power torque value is determined (see, for example, Patent Document 1).

Japanese Patent Publication No. 3150142 (2nd page, FIG. 5)

  In a conventional train control method for train trains, torque sharing from the intermediate vehicle to the leading vehicle and the rear vehicle, that is, braking during brake control, is performed in order to remove the influence of moisture and dust adhering to the surface of the track on the adhesive force. The brake sharing ratio of each vehicle is set so that the force sharing ratio becomes small. Accordingly, since the braking force of the intermediate vehicle is set to be high even in fine weather, there is a problem that the wear of the wheels of the intermediate vehicle increases.

  The present invention has been made to solve the above-described problems, and provides a brake control method for a train train that can reduce the wear of the wheels of a vehicle following the leading vehicle.

  According to the brake control method for a train set according to the present invention, a brake for bearing a brake force commanded by a brake command signal in a train set connecting a plurality of vehicles for each vehicle based on a response load signal corresponding to the weight of each vehicle. In the brake control method for trains that calculate force, when a rain signal that means rain is input, the response signal of the leading vehicle of the train is multiplied by a predetermined reduction coefficient that is greater than 0 and less than 1 The braking force borne by each vehicle is calculated.

According to the present invention, the ratio of the braking force that the leading vehicle bears in response to the load signal is set to a predetermined value that is greater than 0 and less than 1 when a rain signal that means rain is input. As the value multiplied by the reduction factor, each vehicle following the leading vehicle bears the difference between the commanded braking force and the braking force borne by the leading vehicle, thereby preventing the leading vehicle from sliding during rainy weather. Wheel wear can be reduced. Furthermore, when no rain signal is input, each vehicle bears the braking force based on the response load signal, so that the wear of the wheels of each vehicle can be averaged.

Embodiment 1 FIG.
FIG. 1 is an explanatory diagram showing a brake control method for a train set according to Embodiment 1 for carrying out the present invention.
In FIG. 1, for example, the first train in the traveling direction indicated by an arrow is the leading vehicle 1, and the train 2 is composed of the second and subsequent vehicles 2 to 4. For example, the brake force command signal 6a is commanded from the brake command means 6 disposed in the leading vehicle by the number of notches corresponding to the brake force. The corresponding load signal generating means 7 to 10 disposed in the respective vehicles 1 to ₄ output the corresponding load signals W _{1 to} W ₄ corresponding to the weights of the respective vehicles 1 to 4. The rain signal generation means 11 outputs, for example, an operation command signal for a wiper that is operated in the rain as a rain signal 11a. The brake force calculation means 12-15 arranged in each vehicle 1-4 have a brake force F borne by the vehicle by the brake force command signal 6a, the applied load signals 7a-10a from each vehicle 1-4, and the rain signal 11a. calculating a ₁ to F _4.

Next, the operation will be described. In FIG. 1, corresponding load signals W _{1 to} W ₄ corresponding to the vehicle weights of the vehicles _{1 to 4} are output from the corresponding load signal generating means 7 to 10. When a brake command signal 6a corresponding to a predetermined brake force is output from the brake force command means 6 in a state where the rain signal 11a is not output from the rain signal generation means 11, the brake force calculation means for each vehicle 1 to 4 is output. 12 to 15 calculate the braking force Fi borne by the vehicle according to the equation (1).
Fi = F × Wi / (W ₁ + W ₂ + W ₃ + W ₄ ) (1)
However, F is the brake force commanded to the train 5 by the brake force command means 6, and Fi is the brake force borne by each vehicle 1-4 (i is the car number).
When the rain signal 11a which means the rainy weather is output from the rain signal generation means 11 by operating the wiper due to rain, the brake force calculation means 12 of the first vehicle 1 of the first car is burdened by the own vehicle according to the equation (2). calculating a braking force _{F 1} to. The brake force calculating means 13 to 15 each subsequent vehicles 2-4 calculates the braking force _F 2 to F ₄ in which the vehicle is borne by the formula (3). Each of the vehicles 2 to 4 following the leading vehicle 1 bears the difference between the commanded braking force and the braking force borne by the leading vehicle 1.
F ₁ = F × aW ₁ / (aW ₁ + W ₂ + W ₃ + W ₄ ) (2)
Fi = F × Wi / (aW ₁ + W ₂ + W ₃ + W ₄ ) (3)
However, a is a reduction coefficient for reducing the braking force borne by the leading vehicle 1, and 0 <a <1. The mitigation factor a is set to a value close to 0 when the frequency of occurrence of the leading vehicle is high, and is set to a value close to 1 through experiments or the like if no sliding occurs even in rainy weather.
The brake forces F _{1 to} F ₄ calculated by the respective brake force calculation means 12 to 15 are distributed to a regenerative brake force by a drive motor (not shown) and an air brake force by an air brake device.

As described above, the load of the braking force F ₁ borne by the leading vehicle 1 according to the response load signal W ₁ by the rain signal 11 a is reduced by a predetermined value by the reduction coefficient a from the other vehicles 2 to 4 and specified. by each vehicle 2-4 followed the braking force F and the leading vehicle 1 is the difference between the braking force F1 incurred (F-F ₁₎ to the leading vehicle 1 is borne, to suppress the sliding of the leading vehicle 1 in the rain Wheel wear can be reduced. Further, when the rain signal 11a is not input, each vehicle 1 to 4 bears a braking force based on the applied load signals W _{1 to} W ₄ , so that the sliding of each vehicle 1 to 4 is suppressed and the wheel wear is averaged. It can be made.
In the first embodiment, the brake force of the leading vehicle 1 has been reduced by a predetermined value by the reduction coefficient using the rain signal 11a. However, the same effect can be obtained by reducing the load factor after the vehicle 2 of the second car. You can expect.
Further, in the first embodiment, the rain signal 11a has been described using the wiper operation command signal. However, the driver outputs the rain signal 11a by detecting rain, such as manually outputting the rain signal 11a. The same effect can be expected if it is to be made.

It is explanatory drawing which shows the brake control method of the formation train in Embodiment 1. FIG.

Explanation of symbols

  1 to 4 vehicles, 5 trains.

Claims (2)

  Brake control method for train trains for calculating the brake force to be borne by each vehicle based on the applied load signal corresponding to the weight of each vehicle with the brake force commanded by the brake command signal in the train train connecting a plurality of vehicles , The braking force borne by each vehicle as a value obtained by multiplying the response load signal of the leading vehicle of the train train by a predetermined reduction coefficient greater than 0 and less than 1 when a rain signal indicating rainy weather is input. A brake control method for a train train, characterized by:   The brake control method for a train set according to claim 1, wherein the rain signal is a wiper operation command signal.

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