Power driving system and vehicle having same

Abstract

The invention discloses a power driving system and a vehicle. The power driving system comprises a differential, a speed changer, an engine, a first electric generator and a second electric generator, wherein the differential is formed by an input part, a first planetary rack, a second planetary rack, a first planetary wheel, a second planetary wheel, a first tooth ring and a second tooth ring; the first and second planetary wheels are respectively connected with the first and second planetary racks; the first and second planetary wheels are engaged with the first and second tooth rings in respective; the second planetary wheel is further engaged with the first planetary wheel; the input part, the first and second planetary racks are coaxially linked; the speed changer is respectively connected with the engine and the differential; produced power can be output to the input part via the differential by the engine; and the first electric generator is linked with the first tooth ring, and the second electric generator is linked with the second tooth ring. The differential of the power driving system utilizes a planetary differential principle to achieve a differential function; and the power driving system has simple and compact structure.

Description

technical field [0001] The present invention relates to a power drive system for a vehicle, and a vehicle having the power drive system. Background technique [0002] In a differential technology known to the inventor, the differential includes the driven gear (main reduction driven gear) of the main reducer, the planetary gear, the center wheel, etc. The sub-plate of the moving gear is meshed with the center wheel, and the rotation and movement functions are realized by the rotating pair and the plane moving pair. Moment purpose. This differential cancels the original left and right housings of the differential, planetary gear shafts and other components, and uses a square shaft and a bushing to directly install the planetary gear 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 reduced. [0003] However, this kind of differential utilizes the symmetrica...

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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