Steering device for a motor vehicle

US6343670B1 · kind B1 · utility

Assignee

• Leopold KOSTAL GmbH & Co. KG · DE

Inventors

• Anton Mindl · Hildesheim, DE
• Frank Blasing · Werl, DE
• Detlef Kerkmann · Altena, DE
• Klaus Nieding · Halver, DE

Key dates

• Filing date: May 2, 2000
• Grant date: Feb 5, 2002
• Expiry date: May 2, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01F2038/143
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention proposes a steering device for a motor vehicle which contains an inductive module for the contactless transmission of electric energy and data between the motor vehicle and the steering wheel, for measuring the rotational angle of the steering wheel and for generating torque between the motor vehicle and the steering wheel, with the inductive module containing a stator that is connected to the motor vehicle in a torsionally rigid fashion and a rotor that is connected to the steering wheel in a torsionally rigid fashion. Such a device should be realized in the form of a compact unit that has a very small space requirement due to the utilization of inductive principles, with said unit consisting of only a few components such that it can be manufactured in a particularly inexpensive fashion. This unit is based on an inductive module that contains a resolver-based rotation sensor and an annular rotary-field motor, with the stator and the rotor containing coils that cooperate with one another in such a way that an inductive coupling exists between the respective coils on the stator side, which are provided for realizing the rotation sensor function and the rotary-field mot…