Invention Grant
US08165737B2 Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions 有权
用于控制双模传动车辆电动变频器中的电力变换器的方法和系统

Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions
Abstract:
Methods and systems for controlling a power inverter in automobiles utilizing two-mode transmissions are provided. The various embodiments control the power inverter by, responsive to a commanded torque of the electric motor being below a first torque level, controlling the power inverter to set a switching frequency of the power inverter at a first set frequency; and, responsive to the commanded torque of the electric motor being between the first torque level and a second torque level, controlling the power inverter to determine the switching frequency of the power inverter as a function of the commanded torque of the electric motor while maintaining the switching frequency above a dynamic frequency limit. The method reduces switching frequencies in the inverter at high commanded torques, while maintaining the switching frequencies above dynamic frequency limit that provides effective control over the motor.
Information query
Patent Agency Ranking
0/0