| 摘要 |
A multi-mode hybrid drive train offers selective operation in any one of series, parallel, and power split modes. The multi-mode hybrid drive train includes two planetary gear sets and a collection of specifically placed brakes and clutches relative to those gear sets. The first planetary gear train includes a power input for receiving power from a primary rotational power source, as well as a first sun gear, first carrier and first ring gear. The second planetary gear train similarly includes a power input as well as a second sun gear, a second carrier connected to a final drive, and a second ring gear. A first motor is linked to the first sun gear and a second motor is linked to the second sun gear such that selective activation of the clutches, brakes, and motors places the multi-mode hybrid drive train in a selected mode of operation. |
