Flexible transmission system for new energy vehicle

Abstract

The invention relates to a flexible transmission system for a new energy vehicle, which comprises a driving motor, a reduction gearbox, and a torsion damping device arranged between the driving motorand the reduction gearbox. The torsional damping device comprises a shell and a torsional damping mechanism. The shell is used for connecting the driving motor and the reduction gearbox. The torsionaldamping mechanism is arranged in the shell and comprises a first rigid part connected to the driving motor in a driving mode, a second rigid part connected to the reduction gearbox in a driving mode,and a flexible part arranged between the first rigid part and the second rigid part. The first rigid part and the second rigid part are oppositely and separately arranged. The flexible part is provided with a first end face and a second end face which are opposite, the first end face is connected to the first rigid part, and the second end face is connected to the second rigid part. Through filtering attenuation of the flexible part, when kinetic energy is transmitted to the reduction gearbox through the second rigid part, the fluctuations of impact and torque borne by the reduction gearbox are greatly reduced, and therefore vibration and noise of the driving motor and the reduction gearbox in the operation process are reduced.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a flexible transmission system for new energy vehicles. Background technique [0002] With the development of science and technology, people's awareness of environmental protection is getting stronger and stronger, and due to the non-renewable energy sources such as gasoline and diesel, people have been encouraged to develop renewable and environmentally friendly energy sources for vehicles to alleviate many current problems that currently exist and need to be solved urgently . [0003] For vehicles powered by traditional fuels, such as gasoline and diesel, the power output source is the engine. The power output path of the vehicle is engine-clutch-gearbox-transmission shaft-final reducer-half shaft-wheel end. Through the power output path, the power generated by the engine can be finally transmitted to the wheel ends, so that the vehicle can move forward. But the ...

AI Technical Summary

Problems solved by technology

However, the sealing requirements between the motor and the gearbox are very high, and it needs to be dustproof and waterproof. If the two are often disassembled, it will easily lead to poor sealing, which will lead to poor performance or even unusable

[0007] Therefore, the existing torsional vibration damping mechanism cannot be used in the current new energy motor system. It is necessary to invent a new torsional vibration damping mechanism based on the current system working characteristics and structure to meet the needs of the new energy power system.

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