Motor hybrid engine respective two-speed power assembly

Abstract

The invention discloses a motor hybrid engine respective two-speed power assembly applicable to a hybrid power vehicle. A single planetary line coupling device consists of a first sun gear, a first planet gear and a first gear ring; a two-speed planetary transmission mechanism consists of a second gear ring, a second planet gear, a second sun gear, a third planet gear, a third sun gear and a thirdgear ring; when a brake or a clutch is selected for closing and / or releasing the first gear ring, the first sun gear, the second sun gear, the third sun gear and / or the second gear ring, the modes such as engine and motor respective single two-speed driving, efficient electricity generation, and engine and motor combined driving are realized; the effect that the motor is in a shaft braking mode during the engine single driving is achieved. The motor hybrid engine respective two-speed power assembly has the advantages of simple and compact transmission structure, full brake structure, high oilsaving and electricity saving performance, small rotational inertia, high power, high reliability, low cost and the like.

Description

technical field [0001] The invention belongs to a vehicle power system, in particular to a hybrid power assembly adapted to an electric vehicle. Background technique [0002] With the rapid increase in the number of pure electric vehicles, price, mileage anxiety and charging convenience have become the most important factors for users to consider when purchasing pure electric vehicles. On the other hand, the country's requirements for vehicle emissions are becoming more and more stringent, and it is difficult for traditional internal combustion engines to meet emission requirements under cost constraints. Therefore, how to take into account the requirements of pure electric vehicles and traditional internal combustion engine vehicles, plug-in hybrid power has become an effective way to solve the problem. However, the cost and control complexity of traditional plug-in hybrid powertrains remain high. Developing a hybrid powertrain with high-efficiency range-extending function...

AI Technical Summary

Problems solved by technology

On the other hand, the country's requirements for vehicle emissions are becoming more and more stringent, and it is difficult for traditional internal combustion engines to meet emission requirements under cost constraints.

Therefore, how to take into account the requirements of pure electric vehicles and traditional internal combustion engine vehicles, plug-in hybrid power has become an effective way to solve the problem. However, the cost and control complexity of traditional plug-in hybrid powertrains remain high. The development of a hybrid powertrain with high-efficiency range-extending function, high-efficiency internal combustion engine driving function, high-efficiency electric driving function, simple control and low cost has become the core of automotive powertrain research

Images