Patent ID: 11885277
Assignee: NIKKI CO., LTD.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. The method for controlling fuel injection according to claim 3, wherein the amount of air passing through the throttle, which is actually controlled, is calculated from the calculated amount of air in the intake manifold and the calculated pressure change in the intake manifold using the formula:, Q
    t
   
   =
   
    
     (
     
      1
      +
      
       
        
         
          V
          m
         
         
          V
          c
         
        
        ·
        
         π
         
          K
          c
         
        
        ·
        
         1
         ω
        
        ·
        
         1
         
          P
          m
         
        
        ·
        
         d
         
          d
          t
         
        
       
       ⁢
       
        P
        m
       
      
     
     )
    
    ·
    
     Q
     a
    
   
  
  ;, and
wherein Qt is the amount of air passing through the throttle, Vm is the volume in the intake manifold, Vc is a volume in the cylinder, Kc is a filling efficiency correction coefficient, ω is a revolutions per minute (rpm) of the engine, Pm is the pressure in the intake manifold, and Qa is the calculated amount of air in the intake manifold.