Power-driven system and vehicle comprising same

Abstract

The invention discloses a power-driven system and a vehicle. The power-driven system comprises a differential mechanism, a speed changer, an engine and a first motor generator, wherein the differential mechanism comprises a first planetary frame, a second planetary frame, a first planetary wheel, a second planetary wheel, a first gear ring, a second gear ring and an input part; the first planetary wheel and the second planetary wheel are connected with the first planetary frame and the second planetary frame correspondingly; the first planetary wheel and the second planetary wheel are engaged with the first gear ring and the second gear ring correspondingly; the second planetary wheel is further engaged with the first planetary wheel; the input part, the first planetary frame and the second planetary frame are linked coaxially; the speed changer is connected with the differential mechanism; the engine and the first motor generator are connected with the speed changer; and the engine and / or the first motor generator can output generated power to the input part. The differential mechanism of the power-driven system uses the planetary difference velocity principle to achieve the differential function, and the structure is compact and simple.

Description

technical field

[0001] The invention relates to a power drive system for a vehicle, a vehicle with the power drive system. Background technique

[0002] In a kind of differential gear technology that the inventor understands, differential gear comprises the driven gear of final reducer (main reduction and driven gear), planetary gear, sun gear etc., and planetary gear is installed on slave gear by square shaft, bushing. The sub-plate of the movable gear is meshed with the center wheel, and its rotation and movement functions are realized by the rotating pair and the planar moving pair. moment purpose. This kind of differential cancels the original left and right differential housings, planetary gear shafts and other components, and uses square shafts and bushings to directly install the planetary gears on the sub-plate of the driven gear of the main reducer, effectively The number of parts of the differential is reduced, the structure is simplified and the weight is reduce...

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