Double-motor planetary transmission

Abstract

The invention discloses a double-motor planetary transmission. The double-motor planetary transmission comprises a first motor, a first input shaft, a sun gear, a planet gear set, a planet rack, a gear ring, a second input shaft and a second motor; the first motor is connected to the first input shaft; the first input shaft is connected with the sun gear; the sun gear is matched with the planet gear set; the planet gear set is engaged to the gear ring; the gear ring is connected to the second input shaft; the second input shaft is matched with the second motor; and the planet rack is matched with the planet gear set.

Description

technical field

[0001] The invention relates to the technical field of automobile transmission transmission, in particular to a double-motor planetary gear transmission. Background technique

[0002] In the 21st century, the Chinese government has put forward an industrial development policy to encourage the development of small-displacement energy-saving vehicles, and pure electric vehicles are an important means to achieve this goal. The current pure electric vehicle transmission system usually uses a single motor, the power will be interrupted when shifting gears, and the shifting efficiency is low. Due to the single-motor system, it is difficult for the motor to run in the high-efficiency zone all the time, which easily causes waste of electric energy.

[0003] For example, the Chinese invention patent document with the application number 201010188764.X discloses an arrangement structure of a gearbox gear shaft system, including an input shaft, a first output shaft para...

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