Park Lock Pre-Assembly Bracket for Transmission Integration
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Solution Overview
Problem
The assembly of park lock systems in transmissions is complex, time-consuming, and prone to errors due to limited space and multiple components, which affects reproducibility and reliability.
Innovation Solution
A park lock system with a mounting bracket that pre-assembles the park lock pawl and actuation device as a single unit, allowing for independent assembly outside the transmission housing, reducing the number of components and simplifying the assembly process by providing alignment and connection elements for easy integration into the transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the park lock system is assembled with multiple components inside the transmission housing at a late stage, then the functionality is maintained, but the assembly time increases and assembly errors increase
Solution Approach 1:
The park lock system is divided into a pre-assembly unit containing all park lock components (park lock pawl, return spring, actuation device) that can be assembled separately and independently before final installation into the transmission housing. This segmentation allows parallel assembly processes and reduces the complexity of final assembly.
Solution Approach 2:
The park lock components are pre-assembled into a complete functional unit before being installed into the transmission housing. This preliminary assembly includes mounting the park lock pawl on the park shaft, installing the return spring, and configuring the actuation device, all performed in advance to simplify the final installation step.
2Reliability
If multiple components are assembled in limited space inside the transmission housing, then the compactness is maintained, but assembly mistakes increase and reproducibility decreases
Solution Approach 1:
The system is segmented into a pre-assembled unit with all components properly configured before final installation. This separate assembly process allows for dedicated quality control procedures and standardized assembly protocols, improving reproducibility and reducing assembly mistakes.
Solution Approach 2:
The mounting bracket serves as an intermediary component that facilitates the assembly of multiple park lock components. It provides a structured platform for mounting the park lock pawl, return spring, and actuation device, making the assembly process more systematic and reproducible.
3Ease of manufacture
If the park lock system components are assembled independently outside the transmission housing, then assembly time is reduced and quality control is improved, but the integration complexity increases
Solution Approach 1:
The park lock system is segmented into a separate pre-assembly unit that can be manufactured and assembled independently using simplified procedures. This modular approach allows each subsystem to be optimized for ease of assembly while minimizing integration complexity through standardized connection interfaces.
Solution Approach 2:
The mounting bracket is designed as a universal component that provides standardized mounting interfaces for the park lock pawl, return spring, and actuation device. This multi-functional bracket simplifies the integration process by providing a common platform that accommodates all components with standardized connection methods.
Data Source
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AI summary
A park lock system comprising a park lock pawl that is adjustable between a park position in which the park lock pawl is engaged with a park gear and a non-park position in which the park lock pawl is disengaged from the park gear; an actuation device for actuating the park lock pawl between the park position and the non-park position; a mounting bracket that is configured for receiving the park lock pawl and for receiving the actuation device such that, when the park lock pawl and the actuation device are mounted to the mounting bracket, a pre-assembly unit is provided for assembly into a transmission housing, wherein the mounting bracket further is provided with connection elements for connection to the transmission housing.