Patent ID: 7986117
Filing Date: 2011-07-26
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. An apparatus for driving a switching member of a power converter so as to generate, from a DC (Direct Current) voltage of a power supply source, a variable output voltage of the power converter, the output voltage being applied to a rotary machine and generating torque in the rotary machine, the generated torque allowing a rotor of the rotary machine to rotate, the apparatus comprising: a phase setter that sets, based on a deviation between the generated torque and a request torque for the rotary machine, a phase of a vector of the output voltage of the power converter in a two-phase rotating coordinate system defined in the rotor; a norm setter that sets, based on the phase set by the phase setter and a rotational velocity of the rotor, a norm of the vector of the output voltage in the two-phase rotating coordinate system; and a drive signal determiner that determines, based on the phase set by the phase setter and the norm set by the norm setter, a drive signal, and applies the drive signal to the switching member to thereby drive the switching member such that the generated torque is adjusted to the request torque.