Patent ID: 11953393
Assignee: BORG WARNER LUXEMBOURG AUTOMOTIVE SYSTEMS SA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The method as claimed in claim 1, wherein the first value of the torque is determined from following equation:, T
  ≅
  
    
      1
      ω
    
    ·
    
      6
    
    ·
    
      (
      
        
          
            V
            
              d
              ⁢
              
                
              
              ⁢
              1
            
          
          ·
          
            I
            
              d
              ⁢
              
                
              
              ⁢
              1
            
          
        
        +
        
          
            V
            
              q
              ⁢
              
                
              
              ⁢
              1
            
          
          ·
          
            I
            
              q
              ⁢
              
                
              
              ⁢
              1
            
          
        
      
      )
    
  

where ω=angular speed, and, [
    
      
        
          
            I
            
              d
              ⁢
              
                
              
              ⁢
              2
            
          
        
      
      
        
          
            I
            
              q
              ⁢
              
                
              
              ⁢
              2
            
          
        
      
    
    ]
  
  =
  
    
      2
      3
    
    ·
    
      [
      
        
          
            
              cos
              ⁢
              
                
              
              ⁢
              θ
            
          
          
            
              cos
              ⁡
              
                (
                
                  θ
                  -
                  
                    
                      2
                      ⁢
                      π
                    
                    3
                  
                
                )
              
            
          
          
            
              cos
              ⁡
              
                (
                
                  θ
                  -
                  
                    
                      4
                      ⁢
                      π
                    
                    3
                  
                
                )
              
            
          
        
        
          
            
              
                -
                sin
              
              ⁢
              
                
              
              ⁢
              θ
            
          
          
            
              -
              
                sin
                ⁡
                
                  (
                  
                    θ
                    -
                    
                      
                        2
                        ⁢
                        π
                      
                      3
                    
                  
                  )
                
              
            
          
          
            
              -
              
                sin
                ⁡
                
                  (
                  
                    θ
                    -
                    
                      
                        4
                        ⁢
                        π
                      
                      3
                    
                  
                  )
                
              
            
          
        
      
      ]
    
    ·
    
      [
      
        
          
            
              I
              X
            
          
        
        
          
            
              I
              Y
            
          
        
        
          
            
              I
              Z
            
          
        
      
      ]
    
  

where θ is the angle of a rotor of the six phase electrical motor relative to the first stator winding arrangement; and
where Vd1 is direct voltage applied across windings of the first stator winding arrangement and Vq1 is quadrature voltages applied across the windings of the first stator winding arrangement.