CONTROL DEVICE OF HYBRID VEHICLE

摘要

A control device for a hybrid vehicle, capable of significantly improving a fuel efficiency by a cylinder-stopping operation while a braking marketabili ty is ensured. A control device for a hybrid vehicle which is provided with an engine (E) and a motor (M), the motor (M) performing regenerative braking according to a decelerated condition and the engine (E) being a cylinder- stopping engine for stopping at least one cylinder at vehicle decelerating, and which comprises a cylinder stop judging means for judging whether to sto p a cylinder according to a vehicle operation condition, a cylinder stop canceling judging means for canceling cylinder stopping while a cylinder is at rest, a suction-tube negative-pressure sensor (S1), a negative-pressure sens or (S3) in a master power, a secondary air passage (33) for secondarily guiding suction air to the suction passage (30) of the engine (E), and a control val ve (34) provided in the secondary air passage (33), for cutting off in-passage suction air, characterized in that the control valve (34) is controlled to b e closed when a suction-tube negative pressure is as high as at least specifie d threshold value while the vehicle is being decelerated.