| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that reliability of a battery or the like is deteriorated due to a steep increase in generation electric power of an MG1 caused by a target value Netgt of an engine rotation speed limited to an upper limit rotation speed Nlimit when the target value Netgt exceeds the upper limit rotation speed Nlimit due to occurrence of a slip of a driving wheel.SOLUTION: An upper limit value of an engine rotation speed allowing reliability of an MG1 and a pinion gear to be maintained is calculated as an MG1 upper limit rotation speed and a pinion upper limit rotation speed, on the basis of an actual rotation speed Np of a driving shaft. Furthermore, the upper limit value of the engine rotation speed allowing the reliability of the MG1 and the pinion gear to be maintained is calculated as an MG1 assumed upper limit rotation speed and a pinion assumed upper limit rotation speed, on the basis of an assumed rotation speed NpV of the driving shaft obtained by converting a vehicle traveling speed into a rotation speed of the driving shaft. The minimum value of the MG1 upper limit rotation speed, the pinion upper limit rotation speed, the MG1 assumed upper limit rotation speed, and the pinion assumed upper limit rotation speed is calculated as an upper limit rotation speed Nlimit. |
