Parking Lock Emergency Release With Threaded Spindle Actuation
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Solution Overview
Problem
Current gearbox emergency release mechanisms in motor vehicles are cumbersome and costly, requiring significant force and access modifications, with design incompatibilities and laborious servicing, especially when deactivating the parking lock manually during power outages.
Innovation Solution
An actuating mechanism with a threaded spindle and movement element allows for easy manual deactivation of the parking lock through a through opening in the center console, utilizing a tool that can be inserted and rotated to actuate the actuating element, reducing required force and enabling ergonomic operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional manual emergency release mechanism is used, then the parking lock can be deactivated manually, but significant force is required and the operation is cumbersome
Solution Approach 1:
A tool with a threaded spindle acts as an intermediary between the user and the actuating element. The tool converts rotational motion into linear motion through the threaded spindle, providing mechanical advantage and reducing the force required to activate the emergency release mechanism
Solution Approach 2:
The mechanism transforms the static, force-intensive manual pulling operation into a dynamic rotational operation. The threaded spindle converts the rotational input from the tool into linear displacement of the actuating element, making the operation easier and more ergonomic
2Ease of operation
If access to the actuating element is improved, then manual deactivation becomes easier, but design compatibility and aesthetic appearance deteriorate
Solution Approach 1:
The actuating element is extracted and positioned accessible through a through-opening in the center console, allowing the tool to reach it from the vehicle interior without compromising the external design or requiring additional access modifications
Solution Approach 2:
The through-opening serves as an intermediary access path that allows the tool to reach the actuating element without direct exposure, preserving the aesthetic design while enabling easy manual operation from the driver's position
3Ease of operation
If a separate tool is used to actuate the element, then the operation becomes more precise, but the device complexity increases
Solution Approach 1:
A simple threaded spindle tool serves as an intermediary that provides precise mechanical advantage without adding complex control systems. The tool's simplicity contrasts with the complexity it overcomes in the force multiplication and motion transformation
Solution Approach 2:
The threaded spindle mechanism is self-contained and self-explanatory, requiring no additional controls, sensors, or complex mechanisms. The tool naturally guides the user through the activation process through its mechanical design alone
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy, comfortable, and cost-effective manual deactivation of the parking lock, preserving design compatibility and minimizing servicing costs, while ensuring accessibility and unified module compatibility across different vehicle variants.
Implementation Method 1
the tool comprises a threaded spindle and at least one corresponding movement element, which can be moved by a relative rotation between the threaded spindle and the movement element in translation along the threaded spindle
Data Source
AI summary
An actuating mechanism for actuating a gearbox emergency release of a gearbox of a motor vehicle having a parking lock and being mechanically locked by means of the parking lock when the parking lock is activated, having at least one actuating element fixed to the vehicle, by means of which the parking lock can be manually and mechanically deactivated, and having a tool formed separate from the actuating element, by which the actuating element can be manually and mechanically activated for the manual deactivating of the parking lock, wherein the tool comprises a threaded spindle and at least one corresponding movement element, which can be moved by a relative rotation between the threaded spindle and the movement element in translation along the threaded spindle and relative to it, in order to thereby actuate the actuating element.