A flywheel integrated electric vehicle 48v electromechanical coupling drive device

Abstract

The invention discloses a flywheel-integrated electric vehicle 48V electromechanical coupling drive device and a use method thereof, belonging to the technical field of automobile engineering. The device includes a box body, which is a hollow structure, in which a 48V drive motor, a flywheel rotor, a 48V speed regulating motor and a power output shaft are sequentially arranged from left to right; the 48V drive motor and the flywheel rotor are connected through the flywheel shaft transmission; The 48V speed-adjusting motor is connected by a planetary mechanism, the sun gear of the planetary mechanism is connected with the end of the flywheel shaft, and the planetary gear of the planetary mechanism is connected with the 48V speed-adjusting motor; one end of the power output shaft is connected with the planetary carrier of the planetary mechanism, and the other end out of the box. The invention enables the braking energy of the vehicle to be recovered and reused mainly in the form of kinetic energy, which can effectively avoid the high power peak during the charging process of the power battery at the initial stage of braking, and can directly use the kinetic energy in the process of starting and accelerating the vehicle. The form provides auxiliary power to extend the life of the power battery and mechanical brake components.

Description

technical field [0001] The invention belongs to the technical field of automobile engineering, and more specifically relates to a flywheel integrated electric vehicle 48V electromechanical coupling driving device. 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 will be in a state of high current disch...

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.

Images