Invention Grant
- Patent Title: Method and apparatus for “hands-on” identification on steering systems
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Application No.: US16861515Application Date: 2020-04-29
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Publication No.: US11628874B2Publication Date: 2023-04-18
- Inventor: Georg Tardy-Tuch , Dario Düsterloh
- Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Applicant Address: DE Stuttgart
- Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Current Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Current Assignee Address: DE Stuttgart
- Agency: RatnerPrestia
- Priority: DE102019111990.1 20190508
- Main IPC: B62D1/04
- IPC: B62D1/04 ; B62D6/08 ; G01L5/22

Abstract:
A method for “hands-on” identification on a steering system having two subsystems connected to one another by an elastic connection. The elastic connection has a static friction state and a sliding friction state for a respective set of external state variables. The steering system is excited by an excitation vibration, which is generated by a controllable vibration generator and has a respective excitation amplitude and a respective excitation frequency, for a respective set of external state variables, in which the respective excitation amplitude and the respective excitation frequency for the currently present set of external state variables are taken from a prescribed table and the vibration generator is controlled with them. A reaction torque to the excitation vibration is measured using a sensor. A phase difference between the excitation vibration and the reaction torque is calculated to identify a “hands-off” state as well as a “hands-on” state.
Information query
IPC分类: