Mechanical return to park feature for shift-by-wire transmissions

Through the artificial sensory locator and actuator system, the problem of lack of feedback of the wire-controlled shift mechanism when returning to the parking gear is solved, the automatic return and locking of the transmission position is realized, clear visual and tactile feedback is provided, and the operational reliability and safety are improved.

CN114786984BActive Publication Date: 2025-10-24GHSP INC
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Patent Information

Application Number
CN202080084916.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-12-09
Filing Date
2020-12-03
Publication Date
2025-10-24
Estimated Expiration
2040-12-03

AI Technical Summary

Technical Problem

Traditional wire-controlled shift mechanisms lack effective visual and tactile feedback when returning to park, making it impossible for users to intuitively confirm the transmission position.

Method used

An artificial sense locator is used to connect multiple artificial sense positions through threaded channels and continuous threaded ridges. Combined with a locator actuator and a locking actuator, the automatic return and locking of the detent component can be achieved, providing visual and tactile feedback.

Benefits of technology

It realizes automatic return and locking of the transmission position, provides clear visual and tactile feedback, ensures that the user can confirm the parking gear position, and improves the reliability and safety of operation.

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Abstract

A selector mechanism includes a selector interface having a catch member. A haptic positioner defines a plurality of haptic positions corresponding to selectable positions of the selector interface. The plurality of haptic positions are connected via a threaded passage that extends helically along the haptic positioner. An engine rotates the haptic positioner to automatically operate the catch member through the threaded passage to move the catch member and the selector interface to a desired position of the catch member and the selector interface.
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Citation Information

Patent Citations

  • actuator and vehicle transmission, which has the same

    DE102018222760A1

  • Input device

    US20180348808A1