A multi-mode hybrid special transmission

Abstract

The invention discloses a multi-mode hybrid special transmission, which includes an input shaft, a first planetary gear train, a second planetary gear train, an intermediate shaft, a differential, a first clutch, a second clutch, a first brake and a second Brake; the input shaft is connected to the engine through a torsion-limiting shock absorber; the first planetary gear train includes sun gear A, planetary gear A, planet carrier A and ring gear A, and planetary gear A is arranged on sun gear A and ring gear A Between, and installed on the planetary carrier A, the planetary gear A meshes with the sun gear A and the ring gear A respectively; the sun gear A is installed on the input shaft; the second planetary gear train includes the sun gear B, the planetary gear B, the planetary carrier B and ring gear B. The beneficial effects of the present invention are: to set the first clutch, the second clutch, the first brake and the second brake, by changing the solid connection mode of the first planetary gear train and the second planetary gear train, and changing the stationary components to achieve multiple transmission ratios without adding additional gear pairs.

Description

technical field [0001] The invention relates to automobile power equipment, in particular to a special transmission for multi-mode hybrid power. Background technique [0002] At present, with the rapid development of electrification in the automotive industry and the gradual increase in the market share of new energy vehicles, the trend of electrification of transmissions is becoming more and more obvious. The technical routes in the field of hybrid transmissions can be divided into two categories: add-on hybrid transmissions and special hybrid transmissions. Among them, the add-on hybrid transmission is a hybrid powertrain composed of one or two motors added to the traditional transmission. ; The essence of the dedicated hybrid transmission is to realize its core function by means of electric drive, and the electromechanical component is the central component of the structure and is an indispensable part. The special hybrid transmission is a new configuration specially red...

AI Technical Summary

Problems solved by technology

At present, hybrid power transmission drive devices have also appeared, but none of them can meet the requirements of multiple working conditions at the same time. For example, Chinese patent document CN105128647A relates to a multi-mode hybrid power transmission drive device, which discloses that three-stage planetary gears are used in the transmission system to realize power. Changes in transmission and drive modes

However, this transmission drive device needs to be equipped with two motors to achieve different drive modes, the structure is complex, and the direct drive of the engine cannot be realized; the selection of transmission ratios is small, and it cannot meet the needs of multi-speed ratios under different working conditions

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