| 摘要 |
A powertrain for a hybrid vehicle, comprising a hydraulic pump (36) recharging pressure accumulators (40, 42), which is linked to the sun gear (14) of a planetary gear train (10), an internal combustion engine (2) being linked to the ring gear (12), the drive wheels of the vehicle being linked to the planet carrier (16) of this planetary gear train, said powertrain (1) comprising a hydraulic engine (50) supplied by the accumulators (40, 42), which is linked to the drive wheels, characterised in that it comprises a system for immobilizing the planetary gear train (38), and a free wheel (30) positioned on the drive of the pump (36), which enables the internal combustion engine (2) to drive the vehicle forward when the planetary gear train (10) is blocked, leaving said pump stopped. |
