Hybrid power coupling system and hybrid electric vehicle

Abstract

A hybrid coupled system is characterized in that an electric generator and an engine of the system are coaxially connected through a first shaft; a first gear and a second gear are arranged on the first shaft, a synchronizer is arranged between the first gear and the second gear and controls the first shaft to be connected with or separated from the first gear or the second gear, and a differential is connected with the engine and a driving motor through a gear shaft system. The hybrid coupled system does not need a clutch, is simple in structure, saves space and is convenient to arrange; when the engine participates in driving, two gears of the engine can be selected, so that the work range of the engine is optimized, and dynamic property and economic performance of the engine are improved; before and after gear shifting, through speed regulation of the electric generator and the driving motor, the gear shifting impact is reduced, and the service life of the synchronizer is prolonged; furthermore, the driving motor can output power while regulating the speed in a gear shifting process, and the condition of power failure is avoided. The invention further provides a hybrid vehicle.

Description

technical field [0001] The invention relates to the technical field of power systems of hybrid electric vehicles, and more specifically relates to a hybrid coupling system and a hybrid vehicle with the hybrid coupling system. Background technique [0002] With the lack of oil resources, the improvement of people's awareness of environmental protection, and the requirements of increasingly stringent environmental protection regulations, there is an urgent need for green and environmentally friendly automotive products that can save energy and have low emissions or even zero emissions. To this end, governments around the world and major automobile manufacturers are intensifying their efforts to develop various types of new energy vehicles. A hybrid vehicle is a type of new energy vehicle. Compared with a traditional internal combustion engine, a hybrid vehicle refers to a vehicle that uses more than two sources of energy. [0003] The most common gasoline-electric hybrid vehi...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a hybrid power coupling system and a hybrid electric vehicle to solve the problems that the current hybrid power system occupies a large space and is difficult to arrange on the vehicle, and there are two gears to choose when the engine participates in driving, It solves the problem that the current hybrid system only has a gear with a fixed transmission ratio when the engine is directly driven, optimizes the working range of the engine, and improves the power and economy of the engine

Images