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Electronically controlled power steering system for vehicles and method and system for motor control

  • US 20060012324A1
  • Filed: 09/16/2005
  • Published: 01/19/2006
  • Est. Priority Date: 04/30/2002
  • Status: Active Grant
First Claim
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1. A method for controlling an electric motor, the motor having at least one sensor output for determining a switching instant for a switch of a switching converter controlling a conduction angle determining a conduction time during a revolution of the motor, the method comprising:

  • receiving the sensor output;

    advancing a switching-on time of a switch of the switching converter connecting a d-c bus voltage to a motor phase drive input by a phase angle prior to the next sensor output determining the switching instant; and

    controlling the speed of the motor by changing the amount of the phase angle.

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