Patent ID: 11945335
Assignee: JILIN UNIVERSITY
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 2:
3. The method for characterizing an energy consumption indicator of an EV according to claim 2, wherein the determining a driving feature in each of the test sub-cycles according to the time-speed curve in the test cycle comprises:
determining a speed intensity in the jth test sub-cycle according to an equation, I
    
     spd
     ,
     j
    
   
   =
   
    
     
      ∑
      
       i
       =
       1
      
      
       N
       j
      
     
     
      
       (
       
        
         v
         j
        
        (
        i
        )
       
       )
      
      3
     
    
    
     
      ∑
      
       i
       =
       1
      
      
       N
       j
      
     
     
      
       v
       j
      
      (
      i
      )
     
    
   
  
  ;
 

determining a braking intensity in the jth test sub-cycle according to an equation, I
    
     brk
     ,
     j
    
   
   =
   
    
     
      ∑
      
       i
       =
       1
      
      
       N
       j
      
     
     
      max
      ⁡
      (
      
       
        
         
          (
          
           
            v
            j
           
           (
           i
           )
          
          )
         
         2
        
        -
        
         
          (
          
           
            v
            j
           
           (
           
            i
            +
            1
           
           )
          
          )
         
         2
        
       
       ,
       0
      
      )
     
    
    
     
      ∑
      
       i
       =
       1
      
      
       N
       j
      
     
     
      
       v
       j
      
      (
      i
      )
     
    
   
  
  ;, and
determining a slow-driving intensity in the jth test sub-cycle according to an equation, I
    
     slw
     ,
     j
    
   
   =
   
    1
    
     
      ∑
      
       i
       =
       1
      
      
       N
       j
      
     
     
      
       v
       j
      
      (
      i
      )
     
    
   
  
  ,
 

wherein, Ispd, j is the speed intensity in the jth test sub-cycle, Ibrk, j is the braking intensity in the jth test sub-cycle, and Islw, j is the slow-driving intensity in the jth test sub-cycle.