CONTROL DEVICE AND CONTROL METHOD FOR HYBRID VEHICLE POWER UNIT

摘要

A power unit includes a first rotating electrical machine and a second rotating electrical machine as prime movers. The first rotating electrical machine, the second rotating electrical machine and a drive wheel are respectively connected to a ring gear (R), sun gear (S) and carrier (C) of a planetary gear mechanism. When a temperature of a permanent magnet of the first rotating electrical machine becomes close to a temperature at which demagnetization occurs, an output of the first rotating electrical machine is reduced (from R1 to R2), and an output of the second rotating electrical machine is increased (from S1 to S3). Thus, the total output (CI) of the power unit is kept.