Planetary type dual-mode petrol-electric parallel-serial hybrid power system

Abstract

The invention discloses a planetary type dual-mode petrol-electric parallel-serial hybrid power system, and aims to solve the current problems that the parallel-serial hybrid power car greatly depends on a motor, and the current planetary type parallel-serial hybrid power car cannot totally realize a parallel mode so as to cause the transmission efficiency not to be optimized enough. The system comprises an engine, a motor I, an inverter, a supercapacitor, a motor II, a front planetary row, a back planetary row, a clutch, a system output shaft and a system input shaft, wherein engine is connected with the system input shaft by virtue of a coupling, the front planetary row is sheathed in the right end of the system input shaft, the motor I is freely sheathed in the left end of the system input shaft, the right end of the motor I is in spline connection with the left end of the front planetary row, the clutch is in spline connection with the front planetary row, the front planetary row is in spline connection with the system output shaft, the back planetary row is sheathed in the system output shaft, the motor II is freely sheathed in the right end of the system output shaft, and the left end of the motor II is in spline connection with the right end of the back planetary row.

Description

technical field [0001] The invention relates to a power system of a hybrid electric vehicle, more precisely, the invention relates to a planetary dual-mode oil-electric hybrid hybrid system. Background technique [0002] Facing the current situation of energy shortage and increasingly serious environmental pollution, energy saving and environmental protection have become the only way for the development of automobiles. Hybrid electric vehicle is currently the most effective energy-saving vehicle solution, and its drive system has three forms: series connection, parallel connection and hybrid connection. Series connection can realize the optimal control of the engine, but all the energy will be converted twice, and the loss is relatively large; parallel connection can achieve better transmission efficiency, but the mechanical connection between the engine and the output shaft cannot ensure that the engine is always in a better working area ; and the hybrid can combine the ad...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the current hybrid electric vehicle is highly dependent on the motor and needs a large motor to provide sufficient driving force, and the current planetary hybrid electric vehicle cannot fully realize the parallel mode so that To solve the problem of insufficient optimization of transmission efficiency, a planetary dual-mode oil-electric hybrid system is provided

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