Flynn, Thiel, Boutell & Tanis, P.C.
Drive control apparatus of hybrid vehicle
Ina drive control apparatus (1) of a hybrid vehicle, a change rate restriction value of a target engine rotational speed which is set on the basis of a vehicle speed is preset, a restriction value of the target engine rotational speed is calculated from the change rate restriction value and a previous target engine rotational speed, a target engine operation point to decide the target engine rotational speed and a target engine torque is set on the basis of the restriction value of the target engine rotational speed and the provisional target engine rotational speed, a target electric power is calculated from a difference between a target engine power which is calculated from the target engine operation point and a target drive power, and torque instruction values of a plurality of motor generators (4, 5) are calculated by using a torque balance equation including a target engine torque which is obtained from the target engine operation point and an electric power balance equation including the target electric power.Thus, even in a transient state where the operation point of the internal combustion engine (2) is changed, since the target operation point line is traced, the fuel consumption can be improved.
Suzuki Motor Corporation
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Yoshiki Yukihiro Masaaki Masakazu Hitoshi
Ito Hosoe Tagawa Saito Ohkuma