Integrated Steering Housing Cover for Control Unit Cooling
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Solution Overview
Problem
Existing steering units suffer from excessive heat buildup in control units, leading to potential damage of sensitive electronic components, and require complex assembly and large installation space.
Innovation Solution
A one-piece transmission and power steering drive housing with integrated control unit components distributed on a housing cover for improved heat dissipation and simplified assembly, featuring a housing cover with a receiving space for easy component access and a centering collar for alignment, along with a motor position sensor to avoid cable guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the control unit is integrated onto the housing cover, then the installation volume is reduced and heat dissipation is improved, but the accessibility for maintenance becomes more difficult
Solution Approach 1:
The control unit is divided into multiple components (power supply unit, control electronics, output stage) that are distributed across different locations on the housing cover. This segmentation allows individual components to be accessed and replaced independently while maintaining the integrated design benefits.
Solution Approach 2:
The housing cover serves as an intermediary structure that both integrates the control unit components for compactness and provides access paths (through openings or removable sections) for maintenance. The housing cover mediates between the conflicting requirements of integration and accessibility.
2Temperature
If the control unit components are arranged in a distributed manner on the housing cover, then the temperature distribution is improved, but the device complexity increases
Solution Approach 1:
Different regions of the housing cover are assigned different thermal management characteristics. Heat-generating components are positioned in areas with optimal heat dissipation properties, while sensitive components are placed in cooler zones. Each location on the housing cover is optimized for its specific function.
Solution Approach 2:
The control unit components are distributed across the two-dimensional surface of the housing cover rather than being stacked vertically or concentrated in a single location. This spatial distribution in multiple dimensions improves thermal management while the modular arrangement keeps complexity manageable.
3Adaptability or versatility
If separate transmission housing and power steering drive housing are used, then the adaptability to different vehicles is improved, but the installation volume increases
Solution Approach 1:
The transmission housing and power steering drive housing are merged into a single integrated housing structure. The control unit is mounted on this combined housing, reducing the overall installation volume while maintaining the functional separation and adaptability through modular component design.
Solution Approach 2:
The integrated housing cover serves multiple functions: it provides structural support, acts as a heat sink for thermal management, serves as a mounting platform for control unit components, and maintains vehicle adaptability through standardized interfaces. This multi-functionality reduces the need for separate components.
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 solution provides effective heat management, reduces the risk of component failure, minimizes installation space, and simplifies maintenance and assembly by integrating the control unit on the housing cover, while maintaining compactness and functionality.
Implementation Method 1
the waste heat generated by the control unit can be dissipated to the housing cover, which serves as a heat sink
Implementation Method 2
the waste heat generated by the control unit can be dissipated to the housing cover
Implementation Method 3
the temperature distribution of highly heat-emitting components of the control unit, such as, for example, resistors or coils, can be improved via the housing cover
Data Source
AI summary
The disclosure describes a housing cover unit for a transmission and power steering drive housing, comprising a housing cover and a control unit for regulating the position and/or speed of a power steering drive. To this end, the control unit is arranged on and attached to the housing cover. Also shown is a steering unit for a vehicle.