A selector shift mechanism for a transmission

Abstract

The invention provides a gear selecting and shifting mechanism for a speed changer and relates to a vehicle part. The gear selecting and shifting mechanism comprises a drive motor, a first slot opening, a first shifting fork, a second slot opening and a second shifting fork. The drive motor is provided with an output shaft for outputting power, and the output shaft is provided with an increase portion with the diameter being increased; the first slot opening is formed in the increase portion, the first slot opening corresponds to at least one gear position, and the gear positions are configured to surround the outer circumferential face of the increase portion; the first shifting fork is configured to rotate along the first slot opening when the output shaft is rotated so that the movement state of a vehicle can be changed according to the gear positions in the first slot opening; the second slot opening is configured in the increase portion, the second slot opening is provided with at least one gear position, and the gear positions are configured to surround the outer circumferential face of the increase portion, and the second slot opening and the first slot opening are formed in a spaced manner; and the second shifting fork is configured to move along the second slot opening when the output shaft is rotated so that the movement state of the vehicle can be changed according to the gear positions in the second slot opening. By means of the gear selecting and shifting mechanism, problems of gear selecting and gear shifting are solved through one motor.

Description

technical field [0001] The invention relates to a component of a vehicle, in particular to a gear selection mechanism for a transmission. Background technique [0002] With the rapid development of electric vehicles, people have higher and higher requirements for electric vehicles, and the multi-gear transmission of electric vehicles has gradually become people's needs. How to better control the multi-gear electric vehicle transmission has become a subject of many studies. [0003] The traditional transmission uses a manual transmission, which mainly transmits the power of the engine through the meshing of the gears. With the increase of the working intensity of the vehicle, the shortcomings of the manual transmission also appear. Speed ​​matching is difficult to control, inaccurate and untimely shifting will lead to increased fuel consumption. For vehicles with relatively high operating intensity, manual transmissions are more intensive to operate and less comfortable to d...

AI Technical Summary

Problems solved by technology

[0003] The traditional transmission uses a manual transmission, which mainly transmits the power of the engine through the meshing of the gears. With the increase of the working intensity of the vehicle, the shortcomings of the manual transmission also appear. Speed ​​matching is difficult to control, inaccurate and untimely shifting will lead to increased fuel consumption. For vehicles with relatively high operating intensity, manual transmissions have high operating intensity and poor driving comfort, etc.

[0004] In order to solve the defects of the traditional manual transmission, the current vehicle transmission adopts an automatic gear selection mechanism to realize the gear selection function. However, on the one hand, because the gear selection mechanism needs to use two motors for gear selection, one of them The motor realizes gear selection, and another motor realizes gear shifting, so not only the manufacturing cost of the vehicle is increased, but also the structural space occupied by the vehicle is also increased

On the other hand, due to the inaccurate control of the current selection and shifting mechanism for the selection and shifting stroke, it is impossible to accurately control the selection and shifting position, and because there is no synchronous action during the shifting process, it is easy to move in the selection process. Faults such as sticking, unclear positioning, abnormal noise of shift fork interference, and even gear jumping during the shifting process may easily cause damage to the gear or gearbox of the transmission

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