ThyssenKrupp has been granted a patent for an electromechanical motor vehicle steering system. The system includes an electric motor, electronic control unit, and housing parts connected by a tapered interference fit. The design ensures a secure connection with a peripheral shoulder delimiting the joining distance. GlobalData’s report on ThyssenKrupp gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ThyssenKrupp, Hydrogen fuel cells was a key innovation area identified from patents. ThyssenKrupp's grant share as of May 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for electromechanical motor vehicle steering system
A recently granted patent (Publication Number: US11993322B2) discloses an electromechanical motor vehicle steering system that includes an electric motor, an electronic control unit, and housing parts connected through an interference fit. The unique aspect of this system is the use of a tapered interference fit, where at least two housing parts are connected by tapered joining surfaces, forming a setting angle ranging from 0.5°-5°. This design allows for a secure connection between the housing parts, with an oversize interference fit ensuring stability. Additionally, the system features a combination of cylindrical and tapered interference fits in the longitudinal direction, with an annular groove and O-ring for sealing between the housing parts.
Furthermore, the patent also details a method for connecting the housing parts of the electromechanical motor vehicle steering system. The method involves positioning an external housing part with a tapered internal surface onto an internal housing part with a corresponding taper, forming a setting angle for the interference fit. By pressing the external housing part onto the internal housing part with a defined axial joining force, a secure connection is achieved. The method emphasizes the use of an interference fit with an oversize, ensuring a strong bond between the housing parts. This innovative approach to connecting housing parts in a motor vehicle steering system showcases the importance of precision engineering and secure assembly techniques in the automotive industry, ultimately enhancing the performance and reliability of the system.
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