Deployable Shift Lever for Manual Mode and Regenerative Braking
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Solution Overview
Problem
Existing shift lever designs, such as button and dial types, make it difficult for drivers to operate a manual mode, and these designs often cannot be applied to regenerative braking in electric vehicles, lacking the necessary sensitivity and control for driver preference.
Innovation Solution
A shift lever apparatus with a rotatable design, featuring a stopper mechanism, guide, and sensing sensor that allows for deployment and undeployment based on driver preference, providing a clean and simple interface for manual mode operation and accommodating regenerative braking functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a button type or dial type shift lever is used, then the appearance is simple and automatic gear shifting is improved, but manual mode operation becomes difficult and regenerative braking control is not achievable
Solution Approach 1:
The shift lever is designed to be deployable and stowable, changing its state from hidden to visible and operational based on driver needs. This dynamic configuration allows the system to adapt between automatic mode (lever stowed) and manual/regenerative braking modes (lever deployed), resolving the contradiction between simple appearance and operational versatility
2Adaptability or versatility
If a paddle shift is mounted separately, then manual mode operation is improved, but the handle structure must be altered and it cannot be applied to regenerative braking in electric vehicles
Solution Approach 1:
The shift lever is designed as a multi-functional component that can perform both manual gear shifting and regenerative braking control functions. By integrating both operations into a single lever mechanism, the patent eliminates the need for separate paddle shifts while maintaining versatility for both manual mode and regenerative braking in electric vehicles
3Ease of operation
If the shift lever is always visible, then manual mode operation is easily accessible, but the appearance becomes cluttered and design simplicity is reduced
Solution Approach 1:
The shift lever transitions from a static always-visible design to a dynamic deployable design. When not needed, the lever stows into the housing maintaining a clean appearance. When manual mode or regenerative braking is required, the lever deploys to provide accessible control, thus resolving the contradiction between appearance simplicity and operational accessibility
Data Source
AI summary
A shift lever apparatus is normally hidden, and provides traveling sensitivity according to a driver's preference when deployed for a specific mode. The shift lever apparatus includes a shift lever that is deployed or undeployed in a housing according to a rotating location; an operating mechanism installed on the shift lever to be rotated together with the shift lever, and provided with a stopper drawn out or drawn into the operating mechanism depending on whether an operation is performed; a guide installed in the housing to guide movement of the stopper and having a first fixing hole and a second fixing hole spaced apart from each other within a rotating radius of the stopper; and a sensing sensor sensing the rotating location of the shift lever when the stopper is located in the second fixing hole to transfer a shift signal according to the rotating location.