Energy-saving environmental-friendly hybrid power transmission mechanism

Abstract

The invention relates to an energy-saving environmental-friendly hybrid power transmission mechanism which comprises an engine, a first motor/generator (5), a second motor/generator (4), a first clutch (1), a double-clutch assembly, a first brake (6), a second brake (7), a Ravina type planetary gear mechanism, an inverter, a battery and an electric control device, wherein the double-clutch assembly comprises a second clutch (3) and a third clutch (2). The energy-saving environmental-friendly hybrid power transmission mechanism has a scientific and reasonable structural design, can realize three hybrid power driving modes of pure electric mode, serial connection mode and hybrid connection mode, and can meet the requirement of running conditions of hybrid power automobiles; the engine can work in an economic region at a constant rotating speed for long, so as to effectively save energy sources and reduce emission; and the energy-saving environmental-friendly hybrid power transmission mechanism has the advantages of wide scope of application and low cost.

Description

technical field [0001] The invention relates to an automobile power transmission system, in particular to an energy-saving and environment-friendly hybrid power transmission mechanism for energy-saving and environment-friendly commercial vehicles and passenger vehicles. Background technique [0002] At present, the power transmission system of gasoline-electric hybrid vehicles is divided into three types: series, parallel and hybrid. The series structure is simple in layout, but the transmission efficiency is too low; the parallel structure has high transmission efficiency, but cannot control the economical operating speed of the engine; the hybrid structure overcomes the shortcomings of series and parallel, and has good overall performance. [0003] A typical hybrid structure transmission consists of an engine, a generator, an electric motor and a planetary gear mechanism. The planetary gear mechanism is used as a power coupling and distribution device, which can provide ve...

AI Technical Summary

Problems solved by technology

The arrangement of the series structure is simple, but the transmission efficiency is too low; the transmission efficiency of the parallel structure is high, but the economical working speed of the engine cannot be controlled; the hybrid structure overcomes the shortcomings of series and parallel, and the overall performance is good

[0003] A typical hybrid structure transmission consists of an engine, a generator, an electric motor and a planetary gear mechanism. The planetary gear mechanism is used as a power coupling and distribution device, which can provide vehicles with two driving modes: pure electric drive and hybrid drive. This structure exists The following problems: a. The engine cannot always work in the economic zone; b. The clutch or torque converter used for starting the vehicle has low efficiency; c. The electric energy flow of the motor generator is large and the efficiency is low; d. The battery is only used as a power supply Raw energy, cannot balance engine power

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