Patent ID: 8884556
Filing Date: 2014-11-11
Classification: B60L,H02M,H02P,Y02T

Abstract:
1. A system for controlling a motor of a vehicle, comprising: a power source configured to supply direct current (DC) electricity; a converter configured to selectively receive and convert the DC electricity of the power source into inverter input voltage; a relay module configured to selectively connect the power source to the converter; an inverter module configured to receive the inverter input voltage from the converter, convert the inverter input voltage into 3-phase AC current, and supply the 3-phase AC current to the motor; and a controller configured to control operations of the converter, the relay module, and the inverter module, wherein the controller performs a minimum heat-generation control to minimize the inverter input voltage that is a sum of heat generated due to a flux-weakening control and heat generated due to suppression of the flux-weakening control by the converter, the minimized inverter input voltage input to the inverter module.