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

摘要

A hybrid-power driving system (HPDS) (100, 200) includes an engine, a motor, and a transmission. The HPDS may include a single clutch and the transmission can provide at least five forward speed ratios and can provide for at least one 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 output shaft or half-axles and wheels of a vehicle. In the HDM, the continuous power being output can be achieved by keeping a synchronizer engaged with a gearwheel for two consecutive speed ratios.

主权项

1. A hybrid-power driving system (HPDS) comprising:
an input shaft having disposed thereon a first driving gearwheel, a second driving gearwheel, a third driving gearwheel, a reverse-gear driving gearwheel, a first synchronizer, and a second synchronizer, wherein the first synchronizer is disposed between the first driving gearwheel and the second driving gearwheel, and wherein the second synchronizer is disposed between the third driving gearwheel and the reverse-gear driving gearwheel; a first intermediate shaft having disposed thereon a first speed-reducing gearwheel, a first driven gearwheel, a second driven gearwheel, a third driven gearwheel, a reverse-gear driven gearwheel, and a third synchronizer, wherein the third synchronizer is disposed between the first driven gearwheel and the second driven gearwheel; a second intermediate shaft having disposed thereon a first idler gearwheel and a second idler gearwheel; a first idler shaft having disposed thereon a reverse-gear idler gearwheel; a motor shaft; and a differential having gearwheels including a second speed-reducing gearwheel, wherein (i) the first driving gearwheel meshes with the first driven gearwheel, (ii) the second driving gearwheel meshes with the second driven gearwheel, (iii) the third driving gearwheel meshes with the third driven gearwheel, (iv) the reverse-gear driving gearwheel meshes with the reverse-gear idler gearwheel, (v) the reverse-gear driven gearwheel meshes with the reverse-gear idler gearwheel, (vi) the first idler gearwheel meshes with the first driven gearwheel, (vii) the second idler gearwheel meshes with the second driven gearwheel, and (viii) the first speed-reducing gearwheel meshes with the second speed-reducing gearwheel.