48V electromechanical coupling driving device of flywheel integrated electric automobile and using method of 48V electromechanical coupling driving device

Abstract

The invention discloses a 48V electromechanical coupling driving device of a flywheel integrated electric automobile and a using method of the 48V electromechanical coupling driving device, and belongs to the technical field of automobile engineering. The device comprises a box body which is of a hollow structure, and a 48V driving motor, a flywheel rotor, a 48V speed regulating motor and a poweroutput shaft are sequentially arranged in the box body from left to right; the 48V driving motor is in transmission connection with the flywheel rotor through a flywheel shaft; the flywheel rotor is connected with the 48V speed regulating motor through a planetary mechanism, a sun gear of the planetary mechanism is in transmission connection with the end part of the flywheel shaft, and a planet gear of the planetary mechanism is in transmission connection with the 48V speed regulating motor; one end of the power output shaft is in transmission connection with a planet carrier of the planet mechanism; and the other end stretches out of the box body. according to the invention, braking energy during vehicle braking is mainly recycled and reused in a kinetic energy form, so that a high-powerpeak value in the charging process of the power battery can be effectively avoided in the initial stage of braking, auxiliary power can be directly provided in the kinetic energy form in the startingand accelerating processes of the vehicle, and the service life of the power battery and mechanical braking parts is prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile engineering, and more specifically relates to a flywheel-integrated 48V electromechanical coupling driving device for electric vehicles and a method for using the same. Background technique [0002] At present, the cost of power batteries is still one of the key factors restricting the development of the electric vehicle market. The service life of the electrochemical energy storage system directly affects the recovery of braking energy and its reuse efficiency. Although power battery technology is developing rapidly, it is still not suitable for charging and discharging under high-power conditions. First, under frequent braking-acceleration urban working conditions, the power battery is repeatedly charged and discharged, which reduces its service life; secondly, when the car accelerates or When running uphill, if the power battery is the only energy source of the vehicle, the power battery wil...

AI Technical Summary

Problems solved by technology

Although the drive system of this application improves the performance of electric vehicles during acceleration and climbing, and improves the life and stability of the electric drive system, it still cannot achieve effective use of energy when accelerating or decelerating.

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