HYBRID VEHICLE

To inhibit generation of a memory effect in a nickel hydrogen battery with an SOC that is not a presupposition.SOLUTION: A control device of a hybrid vehicle provided with an internal combustion engine and a nickel hydrogen battery, is configured to generate power by using a motive power output from the internal combustion engine, to charge the nickel hydrogen battery with the generated power, and to stop the charging when an SOC of the nickel hydrogen battery reaches a charge stop SOC during the charge. In the case where the frequency that the SOC of the nickel hydrogen battery falls within a target SOC region (e.g., high-SOC region) is lower than a boundary value, when the charge stop SOC is within the target SOC region and the frequency in the target SOC region is higher than the boundary value, the control device changes the charge stop SOC to an SOC outside the target SOC region (step S34).SELECTED DRAWING: Figure 7 【課題】ニッケル水素電池のメモリ効果が前提条件外のＳＯＣで発生することを抑制する。【解決手段】内燃機関とニッケル水素電池とを備えるハイブリッド車の制御装置が、内燃機関から出力される動力を利用して発電を行なってニッケル水素電池を充電し、その充電中にニッケル水素電池のＳＯＣが充電停止ＳＯＣになった場合に充電を停止させるように構成される。ニッケル水素電池のＳＯＣが対象ＳＯＣ領域（たとえば、高ＳＯＣ領域）内となる頻度が境界値よりも低い場合には、充電停止ＳＯＣが対象ＳＯＣ領域内にあり、対象ＳＯＣ領域の頻度が境界値よりも高い場合には、制御装置によって充電停止ＳＯＣが対象ＳＯＣ領域外のＳＯＣに変更される（ステップＳ３４）。【選択図】図７