Patent ID: 11926356
Assignee: CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED SIGNAL & COMMUNICATION RESEARCH INSTITUTE
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. The multi-train operation trend deduction method as described in claim 2, wherein the step S2-2 further comprises:
the calculation formulas of the running acceleration ag,j, speed vg,j and passing time tg,j at a current position of the train g are as follows:

ag,j=min{a,amaxδmax·tg,j-1+ag,j-1}  (6), v
      
       g
       ,
       j
      
     
     =
     
      min
      ⁢
      
       {
       
        
         V
         k
        
        ,
        
         
          
           
            (
            
             v
             
              g
              ,
              j
             
            
            )
           
           2
          
          +
          
           
            2
            ·
            
             a
             
              g
              ,
              j
             
            
            ·
            Δ
           
           ⁢
           j
          
         
        
       
       }
      
     
    
   
   
    
     (
     7
     )
    
   
  
 

 
  
   
    
     
      t
      
       g
       ,
       j
      
     
     
      =
      .
     
     
      
       
        t
        
         g
         ,
         
          j
          -
          1
         
        
       
       +
       
        Δ
        ⁢
        
         t
         
          g
          ,
          
           j
           -
           1
          
          ,
          j
         
        
       
      
      =
      
       
        t
        
         g
         ,
         
          j
          -
          1
         
        
       
       +
       
        
         
          v
          
           g
           ,
           j
          
         
         -
         
          v
          
           g
           ,
           
            j
            -
            1
           
          
         
        
        
         a
         
          g
          ,
          j
         
        
       
      
     
    
   
   
    
     (
     8
     )
    
   
  
 

wherein a represents running acceleration in the traction state of the train g, amax represents maximum acceleration, δmax represents a maximum acceleration change rate, tg,j-1 represents a passing time of the train g at a position j−1; ag,j-1 represents a running acceleration of the train g at the position j−1; Vk represents a speed limit value in the current speed limit section, vg,j is the speed of train g at the current position j, vg,j-1 represents a speed of the train g at the position j−1, Δj represents a distance step length intended to be used for updating the train position, and Δtg,j-1,j represents a running time from the position j−1 to the position j of the train g;
wherein a predictive delay time wg,i+1 of the train g arrives at the station i+1 is

wg,i+1=Δt,i,i+1−Δtg,i,i+1  (9)

in the formula, Δtg,i,i+1 is the running time of the train g from a station i to a station i+1, Atg,i,i+1 is a graph of a fixed range running time of the train g in an interval (i,i+1).