Power-driven system and vehicle comprising power-driven system

Abstract

The invention discloses a power-driven system and a vehicle. The power-driven system comprises a differential mechanism, a power output shaft, multiple input shafts, a first motor generator and a second motor generator. The differential mechanism is composed of an input part, a first planet carrier, a second planet carrier, first planet wheels, second planet wheels, a first gear ring and a second gear ring. The first planet wheels and the second planet wheels are connected with the first planet carrier and the second planet carrier correspondingly. The first planet wheels and the second planet wheels are engaged with the first gear ring and the second gear ring correspondingly. The second planet wheels are further engaged with the first planet wheels, and the input part, the first planet carrier and the second planet carrier are coaxially linked. The power output shaft is arranged to be linked with the input part. Each input shaft is arranged to be linked with the power output shaft. The first motor generator is linked with the first gear ring, and the second motor generator is linked with the second gear ring. The differential mechanism of the power-driven system achieves the differential function based on the planet differential principle, 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...

AI Technical Summary

Problems solved by technology

[0003] However, this differential uses a symmetrical bevel gear structure to realize the inter-wheel differential, which is only a partial innovation for the traditional symmetrical bevel gear differential, and cannot really solve the problem that the axial size of this differential structure is too large , shell and bevel gear mass and the shortcomings of relative deviation of reliability

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