P2 Transmission Module Centering for Easier Hybrid Assembly
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Solution Overview
Problem
The complexity of installation and assembly of existing P2 modules in hybrid drive vehicles due to heavy and accurately required components makes the process challenging.
Innovation Solution
A P2 transmission module with a support structure and module drive that includes a decoupling clutch, torsional vibration damper with an actuator, and transmission elements, facilitating centering and easy assembly by using elastic means and a hub-based centering mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy parts are used in the P2 module to ensure structural strength and stability, then the module can support the required loads and maintain reliability, but the complexity of installation and assembly increases due to the need for accurate centering and support
Solution Approach 1:
The patent introduces a centering element as an intermediary component between the heavy parts and the mounting structure. This centering element facilitates accurate alignment and centering during assembly, reducing the complexity of installing heavy components while maintaining the structural stability and reliability required for supporting loads.
2Adaptability or versatility
If multiple transmission members and clutches are integrated into the P2 module to achieve versatile hybrid drive functionality, then the module can provide complex powertrain control, but the device complexity increases making installation and assembly more difficult
Solution Approach 1:
The patent segments the complex P2 module into distinct functional components including multiple transmission members, clutches, and a centering element. Each component is designed and assembled separately with defined mounting interfaces, allowing for modular assembly that reduces the overall complexity of integrating multiple transmission members and clutches while maintaining versatile hybrid drive functionality.
3Manufacturing precision
If accurate centering is implemented for heavy parts with respect to the engine and transmission, then the manufacturing precision and operational reliability are improved, but the assembly time and process complexity increase
Solution Approach 1:
The patent incorporates a centering element that is pre-configured with specific geometric features and mounting characteristics. This preliminary design of the centering element enables accurate centering to be achieved more quickly during assembly, as the element is already prepared to facilitate precise alignment with the engine and transmission components, thereby reducing assembly time while maintaining high centering accuracy.
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
Simplifies the assembly process by enabling precise centering and reducing the complexity of integrating the internal combustion engine, electric machine, and transmission, allowing for efficient operation and reduced assembly time.
Implementation Method 1
a disc coaxial with the hub and adapted to be coupled to the first transmission member by elastic means
Data Source
AI summary
A transmission module for a hybrid drive vehicle adapted to be interposed between an internal combustion engine and a vehicle transmission has a tray-like support structure defining a housing for a decoupling clutch and adapted to be fixed to the internal combustion engine. A module drive is carried by the support structure and has a first transmission member adapted to be connected to the decoupling clutch by means of a torsional vibration damper and has a second transmission member adapted to be connected to an electric machine. The torsional vibration damper has an actuator defining a centering with respect to the crankshaft and to a transmission torque converter and has a seat for a support bearing with respect to the support structure.