Automatic gear shifting system with synchronizer for electric vehicle

Abstract

The invention discloses an automatic gear shifting system with a synchronizer for an electric vehicle. The automatic gear shifting system comprises a gearbox, the synchronizer, an electromagnet, a motor and a controller. The gearbox comprises an input shaft, an intermediate shaft and an output shaft, the synchronizer is movably penetratingly arranged on the output shaft and is connected with a shifting fork, the shifting fork is connected with a shifting fork shaft, the electromagnet is connected with the shifting fork shaft, the motor is connected with the input shaft, and the controller is connected with the motor and the electromagnet. The automatic gear shifting system has the advantages that electric signals can be transmitted to the electromagnet by the controller, the shifting fork shaft can be controlled via the electromagnet, the shifting fork can traverse up and down under the control of the electromagnet via the shifting fork shaft, the synchronizer can be driven by the shifting fork to traverse up and down between a first output shaft gear and a second output shaft gear when the shifting fork traverses up and down, accordingly, the synchronizer can work with the first output shaft gear or the second output shaft gear, and automatic gear shifting effects can be realized.

Description

technical field [0001] The invention relates to a driving system for an electric vehicle, and more particularly to an automatic shifting driving system for an electric vehicle using a synchronizer. Background technique [0002] Currently, electric vehicles on the market generally only have one gear or two gears that need to be switched manually. The electric vehicle with one gear has small output torque, poor load capacity, and high current value during operation, fast power consumption, short battery life, climbing and acceleration can only be achieved by increasing the current; The electric vehicle with the two gears to be switched needs to be parked and shifted. If the gear is shifted while driving, there will be impacts and tooth knocking. Contents of the invention [0003] In order to solve the above technical problem, the present invention provides an automatic shift drive system for an electric vehicle using a synchronizer. [0004] Technical scheme of the present...

AI Technical Summary

Problems solved by technology

The electric vehicle with one gear has small output torque, poor load capacity, and high current value during operation, fast power consumption, short battery life, climbing and acceleration can only be achieved by increasing the current; The electric vehicle with two gears needs to be parked and shifted. If the gear is shifted while driving, there will be impact and toothing.

Images