Brake control device and brake control method

Abstract

The operation frequency of electromagnetic valves is reduced in an air brake device of a train containing a motor car. A necessary brake force acquisition unit acquires the necessary brake force necessary for each car or flatcar of a train containing a motor car. An electric brake force detection unit detects an electric brake force of the entire composition of the train. A brake force adjustment unit distributes the air brake force so that fluctuations in the electric brake force are compensated for by the air brake force of one car or flatcar, in an operating period of one deceleration of the train or from running to stopping. A brake force command unit sends a command to an air brake control device for the value distributed by the brake force adjustment unit. The air brake control device controls the air brake of the car in accordance with the value commanded.

1 . A brake control device, comprising:
 a necessary brake force acquisition or for acquiring a necessary brake force necessary for each car or flatcar of a train containing a plurality of motor cars holding a primary electric motor;   an electric brake force detector for detecting an electric brake force of an entire composition of the train, the entire composition including the plurality of the motor cars;   a brake force adjustor for distributing air brake force so as to compensate for fluctuations in the electric brake force with the air brake force of one of the cars or flatcars, in the action period to one deceleration of the train or from running to stopping; and   a controller for controlling the air brake force of each car or flatcar in accordance with a value distributed by the brake force adjustor.   
     
     
         2 . The brake control device of  claim 1 , wherein the brake force adjustor distributes the air brake force in a predetermined order so as to successively satisfy the necessary brake force for each car or flatcar, for the difference between the necessary brake force of the entire composition and the electric brake force, until that difference is eliminated. 
     
     
         3 . The brake control device of  claim 2 , wherein the brake force adjustor distributes the difference to the air brake force of the cars or flatcars within a range no less than the necessary brake force necessary for each car or flatcar on the train and no greater than the maximum brake force in an air brake device of the cars or flatcars. 
     
     
         4 . The brake control device of  claim 1 , further comprising:
 a computer for computing the surplus electric brake force or the shortage of electric brake force, being the difference between the electric brake force of the entire composition and the necessary brake force necessary for the motor cars of the train;   wherein the brake force unit adjustor:   when there is a surplus electric brake force, distributes that surplus electric brake force in a predetermined order so as to satisfy the necessary brake force for each trailer car pulled by the motor cars or each flatcar of a trailer car; and   when there is a shortage electric brake force, distributes an air brake force corresponding to that shortage electric brake force in a predetermined order so as to satisfy the necessary brake force of the motor cars or flatcars of each.   
     
     
         5 . The brake control device of either  claim 1 , wherein the brake force adjustor distributes the electric brake force or the air brake force to each of the cars or flatcars in a fixed order in the action period of at least one deceleration of the train or from running to stopping. 
     
     
         6 . The brake control device of  claim 5 , wherein the brake force adjustor alters at a predetermined period the order of distributing the difference to the air brake force of the train cars or flatcars. 
     
     
         7 . The brake control device of  claim 1 , wherein fluctuations in the air brake force of one car or flatcar compensate so that the total of the air brake force and the electric brake force of the train and the total of the necessary brake force for the train become equal. 
     
     
         8 . A brake control method, comprising:
 a necessary brake force acquisition step for acquiring a necessary brake force necessary for each car or flatcar of a train containing a plurality of motor cars holding a primary electric motor;   an electric brake force detection step for detecting an electric brake force of an entire composition of the train, the entire composition including the plurality of the motor cars;   a brake force adjustment step for distributing air brake force so as to compensate for fluctuations in the electric brake force with the air brake force of one of the cars or flatcars, in the action period of one deceleration of the train or from running to stopping; and   a control step for controlling the air brake force of each car or flatcar in accordance with a value distributed by the brake force adjustment step.   
     
     
         9 . The brake control method of  claim 8 , wherein the brake force adjustment step distributes the air brake force in a predetermined order so as to successively satisfy the necessary brake force for each car or flatcar, for the difference between the necessary brake force of the entire composition and the electric brake force, until that difference is eliminated. 
     
     
         10 . The brake control method of  claim 9 , wherein the brake force adjustment step distributes the difference to the air brake force of the cars or flatcars within a range no less than the necessary brake force necessary for each car or flatcar on the train and no greater than the maximum brake force in the air brake device of the cars or flatcars. 
     
     
         11 . The brake control method of  claim 8 , further comprising:
 a computation step for computing the surplus electric brake force or the shortage electric brake force, being the difference between the electric brake force of the entire composition and the necessary brake force necessary for the motor cars of the train;   wherein the brake force adjustment step:   when there is a surplus electric brake force, distributes that surplus electric brake force in a predetermined order so as to satisfy the necessary brake force of each trailer car pulled by the motor cars or each flatcar of a trailer car; and   when there is a shortage electric brake force, distributes an air brake force corresponding to that shortage electric brake force in a predetermined order so as to satisfy the necessary brake force of the motor cars or flatcars of each.   
     
     
         12 . The brake control method of either  claim 8 , wherein the brake force adjustment step distributes the electric brake force or the air brake force to each of the cars or flatcars in a fixed order in the action period of at least one deceleration of the train or from running to stopping. 
     
     
         13 . The brake control method of  claim 12 , wherein the brake force adjustment step alters at a predetermined period the order of distributing the difference to the air brake force of the train cars or flatcars. 
     
     
         14 . The brake control method of  claim 8 , wherein fluctuations in the air brake force of one car or flatcar compensate so that the total of the air brake force and the electric brake force of the train and the total of the necessary brake force for the train become equal.