Axially Parallel Hybrid Module for Compact Drive Trains
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hybrid modules for motor vehicle drive trains face challenges in space efficiency and ease of assembly, particularly when an electric machine is coaxially arranged, making it difficult to assemble and optimize installation space.
Innovation Solution
A hybrid module design with an axis-parallel electric machine arrangement, featuring a switchable clutch actuated by a lever spring system and a torsional vibration damper, which allows for compact installation and easy assembly, utilizing a Hirth tooth system for torque transmission and adjustable clutch disk height for improved space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an electric machine is arranged coaxially in a hybrid module, then the torque transmission functionality is achieved, but the assembly difficulty increases and installation space optimization becomes problematic
Solution Approach 1:
The patent transitions from a coaxial arrangement (one-dimensional alignment along the same axis) to an axially parallel arrangement where the electric machine and transmission input shaft are positioned side-by-side along the axial direction. This dimensional change enables easier assembly by allowing separate mounting paths and reduces spatial interference between components, directly addressing the assembly difficulty issue while maintaining compact installation footprint.
2Area of stationary object
If a switchable clutch is positioned upstream in the torque flow, then torque transmission control is achieved, but the installation space requirements increase
Solution Approach 1:
The patent employs a dynamically actuated clutch mechanism positioned downstream between the transmission input shaft and torque output component. The clutch can be engaged or disengaged as needed, providing torque transmission control while being strategically positioned to minimize space requirements. This dynamic positioning allows the clutch to serve multiple functions in a compact arrangement, optimizing both installation space and operational efficiency.
3Volume of moving object
If multiple components are integrated in a compact hybrid module, then space efficiency improves, but assembly complexity increases
Solution Approach 1:
The patent segments the hybrid module into distinct functional units: the electric machine, transmission input shaft, switchable clutch, and torque output component, each with defined mounting interfaces. The axially parallel arrangement creates natural segmentation planes that facilitate modular assembly. This segmentation allows components to be manufactured and pre-assembled separately, then integrated into the compact module, thereby maintaining space efficiency while reducing overall assembly complexity.
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
The design significantly reduces axial installation space, facilitates easier assembly and maintenance, and ensures efficient torque transmission while maintaining the functionality of existing transmissions.
Implementation Method 1
a torsional vibration damper/torsional vibration damper for reducing rotational irregularities, which is downstream of the switchable clutch
Implementation Method 2
a lever spring that can be pivoted, for example by axial displacement of an axially displaceable release bearing, by means of which an adjustment, i.e. opening and closing, of the switchable clutch can be effected
Implementation Method 3
utilizing a Hirth tooth system for torque transmission
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a hybrid module (1) for a drive train of a motor vehicle, having a torque input component (2) which is provided in order to be driven by a first drive unit, a torque output component (3) which is mounted downstream of the torque input component (2) in the torque flow and acts as an output element, wherein the torque input component (2) and the torque output component (3) are connected to one another via a switchable coupling device (4), and having a torsional vibration damper (5) for reducing rotational irregularities, which is mounted downstream of the switchable clutch (4) in the torque flow. The torque output component (3) is designed as an endless traction means carrier (6) arranged coaxially to the torque input component (2) for introducing torque of a second drive unit which is arranged axially parallel to the torque input component (2). The invention further relates to a drive train for a motor vehicle, comprising a first drive unit, the output shaft of which can be connected to an endless traction means carrier (6) by means of such a hybrid module (1), wherein the endless traction means carrier (6) is coupled via endless traction means (38) in a torque-transmitting manner to a second drive unit which is arranged axially parallel to the endless traction means carrier (6) and/or to the output shaft of the first drive unit, and comprising a double clutch which is mounted downstream of the hybrid module (1) in the torque flow.