Gear shift assistor of vehicle

Abstract

The invention relates to a gear shift assistor of a vehicle, which comprises a gear shift self-locking block and a spring self-locking pin, wherein the gear shift self-locking block is arranged on a gear shift shaft, the spring self-locking pin is used for locking the gear shift self-locking block, a gear shift travel section between a neutral-position arc-shaped groove and a forward engagement-position arc-shaped groove and a gear shift travel section between the neutral-position arc-shaped groove and a backward engagement-position arc-shaped groove on the gear shift self-locking block are both arranged into inclines, the distance between the starting points of the gear shift travel sections close to one end of the neutral-position arc-shaped groove and the centre of the circle of the gear shift shaft is greater than the distance between the terminal points of the gear shift travel sections and the centre of the circle of the gear shift shaft, and the included angle formed by the gear shift travel sections and a straight line between the center of the neutral-position arc-shaped groove and the axle center of the gear shift shaft is 40-65 degrees. By improving the structure of a self-locking mechanism of a gear shift position, the invention can realize the locking of the gear shift position, can also form gear shift assistance during gear shift, lightens the gear shift strain of a driver, meets the driving comfort and also lowers the production cost.

Description

technical field [0001] The invention relates to the field of vehicle gear shifting devices, in particular to a vehicle gear shifting assisting device. Background technique [0002] With the continuous development of vehicle technology, the requirements for the comfort of driving vehicles are getting higher and higher, and one of the important links of driving comfort is to require light shifting, especially for some heavy-duty trucks. The gear shifting device is usually astringent and stagnant when shifting gears. In order to solve this problem, various gear shifting assisting devices have appeared at present. There are two main ways of assisting these shift assist devices: one is to use the synchronizer assist of the transmission, that is, to add a new assist structure inside the synchronizer to reduce the shift force of the synchronizer, such as a developed by the German HOFER POWERTRAIN company. A new type of Kyowa high-performance synchronizer, which adopts the gear shi...

AI Technical Summary

Problems solved by technology

Due to the shifting self-locking block structure, the thrust generated by the spring self-locking pin is only in one direction of the shift axis during the shifting process, and the reaction force of the shifting stroke section to the spring self-locking pin is relatively large, resulting in a shifting operation. Sluggishness, which makes the driver's shift force increase, making people uncomfortable; and the existing shift self-locking mechanism only has the function of automatically locking the shift position, but has no other functions

Images