ELECTRIC VEHICLE CONTROL DEVICE

摘要

Four VVVF main circuit inverters (21) that supply electric power for driving a permanent magnet synchronization electric motor (2) are combined into one unit, and a cooling mechanism for discharging to outside air heat generated from the four VVVF main circuit inverters (21) is configured as a 4-in-1 inverter unit shared by the four VVVF inverters, in order for the four VVVF main circuit inverters (21) to supply electric power to the permanent magnet synchronization electric motor (2). The electric vehicle control device individually controls the inverters and makes the overall device more compact by storing in the 4-in-1 inverter unit a 2-in-1 semiconductor element device package that combines into one unit two semiconductor elements that convert electric power to enable a permanent magnet synchronization electric motor (1) to drive.