Duplex planetary gear train torque directional distribution electric drive axle

Abstract

The invention discloses a duplex planetary gear train torque directional distribution electric drive axle. The drive axle comprises a main drive motor, a TV control drive motor and a duplex planetarygear train, wherein a power output shaft of the main drive motor is connected with a gear ring of a two-stage planet gear planet row differential mechanism; a sun gear of the two-stage planet gear planet row differential mechanism is connected with a first axle shaft, and a planet carrier of the two-stage planet gear planet row differential mechanism is connected with a second axle shaft; the duplex planetary gear train comprises a first sun gear, a second sun gear, a first end planet gear, a second end planet gear and a first planet carrier; the first sun gear is connected with the first axleshaft, and the second sun gear is rotationally supported on the first axle shaft and connected with the planet carrier of the two-stage planet gear planet row differential mechanism; and the first end planet gear and the second end planet gear are coaxially arranged on a planet shaft, and the planet shaft is connected with a power output shaft of the TV control drive motor through the first planet carrier. Torque directional distribution of wheels on the two sides can be achieved without a clutch, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of electric vehicle transmission, and more specifically, the invention relates to a dual planetary gear train torque directional distribution electric drive axle. Background technique [0002] In recent years, with the improvement of people's living standards and the continuous advancement of technology, people have put forward higher and higher requirements for the quality of cars, from the initial demand only as a means of transportation to the safety, comfort, economy, etc. In terms of demand for performance and driving pleasure, people's demand for high-performance vehicles is also increasing year by year. Therefore, investment in research and development of high-performance vehicles is also very necessary. [0003] Electric vehicles are an important development direction for future transportation to adapt to energy conservation and emission reduction. They have received attention from various countries ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to design and develop a dual planetary gear train torque directional distribution electric drive axle, which can solve the defect that the output torque on both sides of the differential in the traditional drive axle is equal and cannot be adjusted, and realizes the torque on both sides without using a clutch. Wheel torque directional distribution, simple structure, fast response

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