A method of shifting gears for electric vehicles

Abstract

The invention discloses a speed changing and gear shifting method for electric vehicle. Manual gear shifting and automatic gear shifting are achieved through a shifter of a common fuel vehicle; when manual gear shifting is conducted, gear switching signals can be output to a vehicle controller by controlling a shift lever to six functional positions, a gear can be judged by the vehicle controller according to the combination of the switching signals corresponding to the six functional positions, then, a gear shifting determination instruction is sent out by combining the current state of the vehicle, finally, the power output range of the current gear is changed through a motor controller, and the gear is displayed on a combination instrument, and speed changing is achieved. The gear shifting purpose is achieved in an economical and effective mode without reducing the transmission efficiency. After the gear shifting mode is adopted, firstly, danger caused by misoperation is avoided, secondly, a driver can easily control the vehicle speed within a certain range by controlling the gear within a certain range, accordingly, a large number of battery energy losses caused by emergent acceleration or overlarge speed change fluctuation are decreased, and the driving power consumption economy is improved.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a gear shifting method for the electric vehicle. Background technique [0002] Pure electric vehicles directly adopt a fixed speed ratio method in which the reducer decelerates the motor, unlike traditional fuel vehicles that use physical methods to change speed. The driver can reach a very high speed in a few seconds, and the electric vehicle is characterized by being very quiet, so there will be a greater hidden danger to the safety of pedestrians and themselves. Contents of the invention [0003] The purpose of the present invention is to provide a gear shifting method for an electric vehicle, which can shift gears relatively easily. [0004] The technical scheme provided by the invention is: [0005] A gear shifting method for an electric vehicle, comprising the steps of: [0006] (1) Switch from automatic gear to manual gear: the gear shift handle is located at the firs...

AI Technical Summary

Problems solved by technology

The driver can reach a high speed in a few seconds, and the characteristic of electric vehicles is that they are very quiet, so there will be great hidden dangers to the safety of pedestrians and themselves