Hybrid power transmission

Abstract

The invention provides a hybrid power transmission which comprises an input shaft, two intermediate shafts, a differential mechanism and an electric mechanism, wherein the input shaft is connected with an engine through a clutch; a first / third-gear driving gear, a second / fourth-gear driving gear, a reverse-gear driving gear, a fourth synchronizer, an EVI-gear driving gear and an EVII-gear drivinggear are sequentially arranged on the input shaft; a first-gear driven gear, a first synchronizer, a second-gear driven gear, a reverse-gear driven gear, an EVI-gear driven gear, a third synchronizer,an EVII-gear driven gear and a first main deceleration driving gear are sequentially arranged on the first intermediate shaft; and a third-gear driven gear, a second synchronizer, a fourth-gear driven gear, a reverse-gear intermediate gear and a second main deceleration driving gear are sequentially arranged on the second intermediate shaft. Through the control over the transmission direction ofengine power and motor power by the four synchronizing mechanisms and the structural arrangement of five engine driving gears, two pure electric driving gears, one engine reverse gear and a parking charging gear, the hybrid power transmission enables the engine power and the motor power to be independently controlled in the transmission process, and the engine power and the motor power do not interfere with each other, and can compensate for each other as required.

Description

technical field [0001] The invention relates to a technology in the field of automobile transmission, in particular to a hybrid transmission. Background technique [0002] The design principle, production process and technology of the mechanical automatic transmission have been mature and stable after a long period of development, but there is a loss of engine power during the shifting process, and the addition of the drive motor can well make up for the mechanical automatic transmission. defects, while taking full advantage of the advantages of high efficiency and low cost of mechanical transmissions, it is the chosen solution for many hybrid vehicles. The existing hybrid transmissions improved on the basis of mechanical automatic transmissions all have the following defects: 1) the motor cannot be disengaged when the vehicle is driven by the pure engine, which reduces the overall efficiency of the transmission; Little or no engine reverse gear function; 3) It is impossibl...

AI Technical Summary

Problems solved by technology

The existing hybrid transmissions improved on the basis of mechanical automatic transmissions all have the following defects: 1) the motor cannot be disengaged when the vehicle is driven by the pure engine, which reduces the overall efficiency of the transmission; Little or no engine reverse gear function; 3) It is impossible to use only one motor to take care of all the functions of the hybrid transmission such as parking charging and pure electric drive; 4) The axial dimension is large, and the layout of the whole vehicle is difficult

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