HYBRID VEHICLE

To more properly treat a situation where temperature of cooling water for an engine becomes high.SOLUTION: A hybrid vehicle comprises: an engine; a first motor which can generate electric power through power from the engine; a second motor which can output power for travel; and a controller which co...

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Bibliographische Detailangaben
Hauptverfasser: IMAMURA TATSUYA, KAWASHIMA TAKAHIRO, TSUCHIDA MITSUTAKA, HARADA SUKEKIMI, FUKUMASU TOSHIHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To more properly treat a situation where temperature of cooling water for an engine becomes high.SOLUTION: A hybrid vehicle comprises: an engine; a first motor which can generate electric power through power from the engine; a second motor which can output power for travel; and a controller which controls the engine, the first motor, and the second motor. The controller changes, when temperature of cooling water of the engine is a first prescribed temperature or more, an operation point of the engine from a target operation point to the operation point at high temperature in a high rotation low torque side while keeping the power of the engine. The controller changes, when temperature of the first motor and/or temperature of the second motor is a second prescribed temperature or more during driving the engine at the operation point at high temperature, the operation point of the engine to the intermediate operation point where rotation number of the engine is larger than that at the target operation point and lower than that at the operation point at high temperature while keeping the power of the engine.SELECTED DRAWING: Figure 2 【課題】エンジンの冷却水温が高くなったときにより適正に対処する【解決手段】ハイブリッド車は、エンジンと、エンジンからの動力を用いて発電可能な第1モータと、走行用の動力を出力可能な第2モータと、エンジンと第1モータと第2モータとを制御する制御装置とを備える。制御装置は、エンジンの冷却水温が第1所定水温以上に至ったときにはエンジンの動作点をパワーを保持した状態で目標動作点から高回転低トルク側の高温時動作点に変更し、高温時動作点でエンジンを運転している最中に第1モータの温度および/または第2モータの温度が第2所定温度以上に至ったときにはエンジンの動作点をパワーを保持した状態でエンジンの回転数が目標動作点より大きく且つ高温時動作点より小さい中間動作点に変更する。【選択図】図2