A Planetary Hybrid Power System Using One-way Clutch

Abstract

The invention discloses a planetary mixed hybrid power system adopting one-way clutches and overcome the defects that the dual-clutch pressure time sequence control is complicated during high and low speed mode switching of an existing dual-mode mixed hybrid power system; a planetary mixed hybrid power automobile cannot completely realize a parallel mode, so that the transmission efficiency is not optimized. The planetary mixed hybrid power system comprises a front planetary row, a rear planetary row, a brake, a clutch, the one-way clutches and a motor system. An engine is connected with a power input shaft through a shaft coupler, and the one-way clutch F1 is arranged behind the engine; the front planetary row is sheathed at the right end of the power input shaft of the system; a motor / electric generator MG1 is connected with a front-row sun wheel, and the brake is in splined connection with the front-row sun wheel; the left end of an intermediate drive shaft is in fit with a front-row gear ring; the rear planetary row is sheathed on the intermediate drive shaft, an inner seat ring of the one-way clutch F2 is in flat-key connection with the intermediate drive shaft, and an outer seat ring of the one-way clutch F2 is connected with a rear-row sun wheel through a stop opening; a motor / electric generator MG2 is connected with the rear-row sun wheel.

Description

technical field [0001] The invention relates to a power system of a hybrid electric vehicle, more precisely, the invention relates to a planetary hybrid power system using a one-way clutch. Background technique [0002] Energy shortage and environmental pollution are two important issues that must be considered in the development of the automobile industry. Hybrid technology can effectively avoid the shortcomings of traditional internal combustion engine vehicles such as high fuel consumption and poor emissions. One of the ways has developed rapidly in recent years. At present, there are three types of hybrid drive systems: series, parallel, and hybrid. Among them, the hybrid drive system has the advantages of both series and parallel drive systems. It can ensure better transmission efficiency while controlling the engine to work in the high-efficiency zone. [0003] The hybrid system configuration using the planetary mechanism as the power coupling device has been widely u...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of complex dual-clutch pressure sequence control when switching between high and low speed modes in the current dual-mode hybrid hybrid power system and the problem that the planetary hybrid hybrid electric vehicle cannot fully realize the parallel mode, so that the transmission efficiency is not optimized enough. Planetary hybrid system with one-way clutch

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