Multi-gear driving device for a hybrid electric vehicle

Abstract

The invention discloses a multi-gear driving device of a hybrid power vehicle. The multi-gear driving device of the hybrid power vehicle comprises an engine, a motor I, a motor II, a mechanical transmission, a main reducer, a torsional shock absorber and a differential mechanism. The engine, the motor I and the motor II are connected with the mechanical transmission through three transmission input shafts respectively, a driving gear of the main reducer is fixedly connected to a driven shaft of the mechanical transmission, a driven gear of the main reducer is connected with the differential mechanism, the mechanical transmission comprises the three transmission input shafts, the driven shaft, a meshing gear pair composed of six gears and four combination sleeves. Through the power source output mode and control over combination and separation of the combination sleeves, the motor I and the motor II can realize two-gear power output, the engine can realize four-gear power output, the driving capacity of the motor I, the motor II and the engine is developed to the maximum, and the motor I, the motor II and the engine are made to work in the regions with the highest efficiency respectively; no clutch is provided, so that the driving efficiency is high, no power failure exists in the gear shifting process and the dynamic property and the riding comfort are good.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicle transmission, in particular to a multi-gear driving device for a hybrid electric vehicle. technical background [0002] Today's automotive industry is under enormous pressure. With the shortage of energy and the seriousness of the air pollution problem, various automobile companies have launched energy-saving and environment-friendly automobiles. Including pure electric vehicles and hybrid vehicles. Constrained by battery technology and charging technology, the mileage of pure electric vehicles cannot meet the needs of long-distance driving, and the requirements for supporting infrastructure such as charging stations are relatively high. [0003] Compared with pure electric vehicles, hybrid electric vehicles do not need to change the infrastructure, can meet the requirements of long-distance driving, have less pollution, and have relatively mature technology. They have become the...

AI Technical Summary

Problems solved by technology

[0004] The invention with the publication number [CN103663860A] "Plug-in hybrid drive device for family cars" proposes a plug-in hybrid drive device using a single motor, which uses one motor and one engine as the power source , the motor adopts 2 gears, and the engine adopts 4 gears, which meets the actual working requirements of the power coupling mechanism. The disadvantage is that the invention uses a clutch to assist in adjusting gear shifts, which will cause slippage loss and the response is not fast enough

At the same time, the working mode of single motor is limited, and the performance of the whole vehicle is limited

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