Gear-shifting driving device

Abstract

The invention provides a gear-shifting driving device which comprises an executing mechanism, a rack and a gear shell. The executing mechanism can be driven by a driving mechanism, the rack is linkedwith the executing mechanism, and at least one end of the rack can recoverably deform; the rack comprises a connecting part which is connected with the executing mechanism through a connecting piece,the gear shell is provided with an induction gear, the induction gear is engaged with the rack, and the gear shell is provided with a rail groove containing the rack; and the rail groove is provided with a straight rail section and a take-up and releasing section, the deformation recoverable end of the rack can slide into or out of the take-up and releasing section, and the length of projection ofthe take-up and releasing section on the extending line in the length direction of the straight rail section is smaller than that of a rail. The gear-shifting driving device can be suitable for an existing automatic gearbox with a known structure, and the gear-shifting driving device can achieve the gear-shifting function which is the same as that of an electronic gear shifter as well without technical transformation.

Description

technical field [0001] The invention relates to the technical field of gear shifting, in particular to a gear shifting drive device. Background technique [0002] The statements in this section only provide background information related to the present disclosure and may not constitute prior art. [0003] In the prior art, an electronic gearbox adapted to an electronic shift driver (SBW, Shift By Wire) can receive a shift signal sent by the SBW, thereby performing a shift operation. [0004] For example, "Electronic Shift Driver for Automobiles" with the publication number CN205136570U provides the applicant with a known embodiment that meets the above description. In this known embodiment, the motor drives the driving wheel to rotate after receiving the shift signal from the central control unit (TCU, Transmission Control Unit), and the driving wheel drives the screw to rotate through the belt and the driven wheel, so that the slider sleeved on the screw When the axial mo...

AI Technical Summary

Problems solved by technology

[0006] That is to say, the electronic shift driver including the above-mentioned known embodiments provided by the applicant can provide the electronic gearbox with the driving external force for switching the P gear, but cannot provide the external force for switching the R, N, and D gears.

Therefore, this type of electronic shift driver is only suitable for electronic transmissions that can receive R, N, and D gear signals, and cannot be extended to other automatic transmissions with mature technologies.

This limits the popularization of the electronic shift drive, making it unsuitable for automatic transmissions that want to maintain the existing structure without technical transformation, but want to achieve the same shifting function as the electronic shifter

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