CONTROL DEVICE OF HYBRID VEHICLE

To provide a control device of a hybrid vehicle, which can suppress running performance in a series-type hybrid vehicle from deteriorating when a temperature of a battery is low.SOLUTION: A control device of a hybrid vehicle according to the present invention comprises: an internal combustion engine; an electric motor for generating electric power that can convert power of the internal combustion engine to electric power when the internal combustion engine is in operation, and can start the internal combustion engine using electric power from a battery when the internal combustion engine is not in operation; a drive electric motor for supplying driving force for running to a driving wheel using electric power; and the battery that can output electric power to the electric motor for generating electric power and the drive electric motor, and determines electric power which can be used by the electric motor for generating electric power and the drive electric motor, while providing a predetermined amount of margin on a charging/discharging restricted amount for controlling the battery, which reduces the size of the margin, when a state where the drive electric motor cannot supply driving force corresponding to required driving torque continues for more than a predetermined time.SELECTED DRAWING: Figure 2 【課題】シリーズ方式のハイブリッド車両において電池低温時の走行性能の低下を抑制する。【解決手段】本発明のハイブリッド車両の制御装置は、内燃機関と、前記内燃機関の動作時に前記内燃機関の動力を電力に変換可能であるとともに前記内燃機関の非動作時に電池からの電力を用いて前記内燃機関を始動可能な発電用電動機と、電力を用いて駆動輪に走行のための駆動力を供給する駆動用電動機と、前記発電用電動機および前記駆動用電動機に電力を出力可能な前記電池と、を備え、電池制御の充放電制限量に対して所定量のマージンを設けて前記発電用電動機および前記駆動用電動機の使用電力を決定するハイブリッド車両の制御装置であって、前記駆動用電動機が駆動要求トルクに対応する駆動力を供給できない状態が所定時間以上続いたときは、前記マージンの大きさを低減させる。【選択図】図２