Patent ID: 11967911
Assignee: KARMA AUTOMOTIVE LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 10:
11. A vehicle comprising:
an electric motor;
an inverter providing a plurality of output signals for operation of the electric motor; and
a controller in communication with the inverter and performing operations comprising:
receiving a control signal comprising a specific command current value to operate the electric motor, the specific command current value comprising:
a commanded quadratic current component value Iq,cmd; and
a commanded direct current component value Id.cmad, wherein a direct current component for the electric motor comprises a maximum potential value |Id|max;
calculating a saturated voltage modifier value Ecompensator for preventing an expected amplitude of a plurality of output signals for an inverter from reaching a saturation value; and
modifying the specific command current value to operate the vehicle by:
determining a modified commanded quadratic current component value Iq,cmd,modified by multiplying the commanded quadratic current component value Iq,cmd by the saturated voltage modifier value Ecompensator; and
determining a modified direct current component value Id,cmd,modified by calculating:, Id
  ,
  
   cmd
   -
   
    
     
      Iq
      ,
      
       
        cmd
        
           
         2
        
       
       ×
       Ecompensator
      
     
     
      
       
        ❘
        "\[LeftBracketingBar]"
       
       Id
       
        ❘
        "\[RightBracketingBar]"
       
      
      ⁢
      max
     
    
    .