| abstract |
The vehicle includes an engine, a first motor generator, a second motor generator, a transmission, a differential, and an electronic control unit. The transmission includes an input shaft, an output shaft, and a clutch. And the input shaft is connected to the second motor generator. The output shaft is connected to a drive wheel of the vehicle. The clutch is configured to switch between the input shaft and the output shaft into a power transmission state or a power transmission cutoff state. The differential includes a first rotating element, a second rotating element, and a third rotating element. The first rotary element is connected to the first motor generator. And the second rotating element is connected to the second motor generator. And the third rotary element is connected to the output shaft of the engine. The differential device is configured such that, when any one of the rotational speeds of the first rotating element, the second rotating element, and the third rotating element is determined, the remaining one rotational speed is determined. The electronic control unit is configured to control the first motor generator, the second motor generator, and the clutch. And the electronic control unit is configured to detect a rotational speed difference between the input shaft and the output shaft when the clutch is controlled to be in the power transmission cutoff state. When the detected rotational speed difference is smaller than the rotational speed difference between the input shaft and the output shaft when the power transmission cutoff state of the clutch is established, the electronic control unit controls the engine So that cranking is suppressed more than when the power transmission cutoff state is established. |