Hybrid power automobile power-train

Abstract

The invention relates to a hybrid power automobile power-train with high power matching property. A crankshaft of an engine is sequentially connected with a first clutch and a first sun wheel from the left to the right; the left end of a motor shaft of a driving motor is fixedly connected with a second sun wheel; a second gear and a fourth gear are fixedly arranged on a connecting shaft in parallel in the left and right sides; the connecting shaft and a transmission are connected through a second clutch; a first gear and a third gear are respectively and fixedly connected with a first planet carrier and a second planet carrier and are respectively meshed with the second gear and the fourth gear; a first gear ring and a second gear ring are fixedly connected with each other, and the outer edges of the first and second gear rings are connected with a brake; the first sun wheel of the first planet row is positioned in the first planet carrier; the first planet wheel is rotationally arranged on the first planet carrier; the first gear ring is positioned outside the first planet carrier; the second sun wheel is positioned in the second planet carrier; the second planet wheel is rotationally arranged on the second planet carrier; the second gear ring is positioned outside the second planet carrier; the number of teeth of the first sun wheel is different from the number of teeth of the second sun wheel.

Description

technical field [0001] The invention relates to a hybrid electric vehicle, in particular to a power assembly of a hybrid electric vehicle. Background technique [0002] The powertrain of a hybrid electric vehicle should usually have functions such as power mode switching, matching of the engine and the drive motor, etc. For this reason, the common hybrid electric vehicle powertrain on the market, the engine and the driving motor are directly connected, and the existing technical problem is; Good output, poor power matching, can not give full play to the role of large torque and continuous speed regulation of the drive motor; in the hybrid mode, the transmission ratio changes discontinuously, there is a shift shock, it is difficult to make the engine in the high efficiency area work, the smoothness of gear shifting is poor and the work efficiency is not high; at the same time, the engine and the drive motor are directly connected, and the impact on the power system is very l...

AI Technical Summary

Problems solved by technology

For this reason, the common hybrid electric vehicle powertrain on the market, the engine and the driving motor are directly connected, and the existing technical problem is; Good output, poor power matching, can not give full play to the role of large torque and continuous speed regulation of the drive motor; in the hybrid mode, the transmission ratio changes discontinuously, there is a shift shock, it is difficult to make the engine in the high efficiency area work, the smoothness of gear shifting is poor and the work efficiency is not high; at the same time, the engine and the drive motor are directly connected, and the impact on the power system is very large when switching between the three power modes of single engine, pure electric and hybrid power, often very Difficult to switch smoothly

Images