Single planetary line power dividing hybrid power system

Abstract

The invention provides a single planetary line power dividing hybrid power system. The single planetary line power dividing hybrid power system comprises an engine power input shaft, a one-way clutch,a double-clutch driving disc, a first clutch driven disc, a second clutch driven disc, a first clutch shaft, a second clutch shaft, a power output driving gear, a planet wheel, a planet carrier, a sun gear, a first motor EM1, an internal gear ring, a second motor EM2, a differential mechanism, a main reduction driven gear, a second motor EM2 power output gear, an intermediate gear, a power outputintermediate shaft and a main reduction driving gear. As a double-clutch module is applied to a planetary line power dividing hybrid power configuration, the single planetary line power dividing hybrid power system has the advantages of multiple working modes, high power performance and more energy saving performance. A pure electric mode can be a single motor mode and can also be double-motor mode; and as a parallel mode of an engine and any motor can be adopted at a high speed, efficiency decrease caused by a specific power dividing phenomenon of a planetary line at the high speed is avoided. If any motor has a fault, a vehicle can still normally run so that the redundancy rate of the system is increased.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicles, in particular to a single planetary row power split hybrid power system. Background technique [0002] With the increasingly stringent fuel consumption regulations, the reduction of financial subsidies for new energy vehicles, the reduction of resource consumption intensity, and the development of compatibility with various technical routes have become new automotive industry plans for the development of energy-saving and new energy vehicles in the next stage, and further develop vehicles with high energy-saving potential. The hybrid system is of great strategic significance for promoting the transformation and upgrading of the automobile industry and producing hybrid energy-saving vehicles that are more in line with market and consumer demand. [0003] In 1997, Toyota launched the first hybrid car, the Prius. In 2015, it launched the Prius 4 equipped with the latest fourth-gener...

AI Technical Summary

Problems solved by technology

[0005] Toyota's THS hybrid system has simple and smooth characteristics, but under some operating conditions, such as high-speed operating conditions, due to the physical characteristics of the planetary row, the power of the engine is still split, part of which is used to generate electricity and part of it is used to drive the vehicle , there is a loss of conversion efficiency from mechanical energy to electrical energy, and from electrical energy to mechanical energy, which is not conducive to fuel saving

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