The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2023
Filed:
May. 08, 2018
Trw Automotive Gmbh, Alfdorf, DE;
Emad Farshizadeh, Düsseldorf, DE;
Tobias Oesterwind, Düsseldorf, DE;
Amo Luengen, Cologne, DE;
Dirk Zimmermann, Aachen, DE;
ZF Automotive Germany GmbH, Alfdorf, DE;
Abstract
Method for detecting the presence of a driver's hands on the steering wheel is described. By a mathematical model, at least one part of a steering system of the motor vehicle is modeled. In addition, a rotational angle of a lower end and/or an upper end of a torsion bar of the steering system is determined. A torque acting on the torsion bar is determined by a measuring device. A sum of a torque with which the driver acts on the steering wheel and a counter-torque generated by friction in the upper part of the steering system is estimated by a Kalman Filter. In addition, the counter-torque is estimated, and the estimated sum of the torque and the counter-torque are used to determine whether the driver's hands are on the steering wheel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile