Hybrid-power driving system for a vehicle and a transmission thereof

摘要

A hybrid-power driving system (HPDS) (110) includes an engine, a motor, and a transmission. The HPDS may include a single clutch and the transmission can provide at least six forward speed ratios and can provide for a reverse speed ratio. The transmission can include three synchronizers and multiple gearwheels that are used in multiple speed ratios. In addition to a pure engine driving mode and a pure motor driving mode, the HPDS can operate using a hybrid-power driving mode (HDM). In the HDM, the HPDS can provide for shifting of gears without power interruption to the half-axles and wheels of a vehicle. In the HDM, the continuous power being output can be achieved by keeping a synchronizer engaged to a gearwheel for two consecutive speed ratios.

主权项

1. A hybrid-power driving system comprising:
an input shaft carrying a first driving gearwheel, a second driving gearwheel, a third driving gearwheel, and a fourth driving gearwheel disposed thereon; a first synchronizer, disposed on the input shaft, for releasably synchronizing at least one of the first driving gearwheel and the second driving gearwheel to the input shaft, a second synchronizer, disposed on the input shaft, for releasably synchronizing at least one of the third driving gearwheel and the fourth driving gearwheel to the input shaft; an output shaft carrying a speed-reducing gearwheel, a first driven gearwheel, a second driven gearwheel, and a third driven gearwheel disposed thereon; a first intermediate shaft carrying a fourth driven gearwheel and a fifth driven gearwheel disposed thereon, wherein the first intermediate shaft includes a hollow portion and is coaxial to the output shaft; a third synchronizer, disposed on the output shaft, for releasably synchronizing at least one of the first driven gearwheel and both the fourth driven gearwheel and the fifth driven gearwheel to the output shaft; a second intermediate shaft carrying a sixth driven gearwheel, a seventh driven gearwheel, an eighth driven gearwheel, and a ninth driven gearwheel disposed thereon; a motor shaft carrying a fifth driving gearwheel disposed thereon; and a final driven gearwheel.