A kind of automobile and its electric drive shift execution device

Abstract

The invention discloses an automobile and its electrically driven gearshift actuator, which comprises a motor, a reducer and a gearshift shaft connected in sequence, and also includes: an inner ring of a first one-way clutch and an inner ring of a second one-way clutch They are all connected to the shifting shaft through transmission, and the direction of transmission power is opposite; the first shifting drum is connected to the outer ring of the first one-way clutch, and the first shifting fork is slidingly connected along the slideway of the first shifting drum; the second shifting drum The gear drum is connected with the outer ring of the second one-way clutch, and the second shift fork is slidably connected along the slideway of the second shift drum. Setting two one-way clutches with opposite power transmission directions can ensure that only one one-way clutch transmits power when driving, that is, only one shift fork acts to achieve different gear shifts. Since the first shift fork and the second shift fork are respectively controlled by The corresponding shift drum control realizes independent action and can realize multiple position combinations, that is, more gears. Since only one motor and one reducer are used, the whole system has low cost, small space and flexible arrangement.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile and an electric drive gear shift actuator thereof. Background technique [0002] Due to the advantages of low cost and fast shift response, electric drive shifting technology has been more and more widely used in recent years. The shift mechanism based on the shift drum device has been popularized in hybrid transmissions and dual clutch transmissions. [0003] At present, in the shifting mechanism based on the shifting drum, each motor usually drives a shifting drum, and the slide on the shifting drum pushes the slider to move, and then drives the shifting fork to realize the shifting of gears. For hybrid transmissions using combined synchronizer shifting technology, some gears require two synchronizers to transmit power at the same time, and there are many combinations of synchronizer positions, which requires two or more shift drums, corresponding to two One ...

AI Technical Summary

Problems solved by technology

This brings disadvantages such as slow response, large space, high cost, and complicated control.

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