DRIVE CONTROL DEVICE FOR HYBRID VEHICLE

摘要

Disclosed is a drive control device for a hybrid vehicle, which comprises a power dividing mechanism (40) that has a sun roller (41) connected to a rotatable shaft (21) of a first motor/generator (20), a carrier (43) connected to an output shaft (11) of an engine (10), and a first disk (44) connected to a rotatable shaft (31) of a second motor/generator (30), the rotatable shaft (31) also functioning as an output shaft for driving wheels, and that controls differential rotation between the sun roller (41), the carrier (43), and the first disk (44) using a collinear diagram in which the rotational speeds of the sun roller (41), the carrier (43), and the first disk (44) arranged in this order are connected by a straight line. The power dividing mechanism (40) can change a rotation ratio determined by dividing the rotational speed of the sun roller (41) by the rotational speed of the first disk (44), and controls the rotation ratio of the sun roller (41) to the first disk (44) such that the rotational speed of the sun roller (41) decreases in the collinear diagram when in a condition where a power circulation occurs.