Ims Gear Se & Co Kgaa

Marcel Mittelbach

Marco Werschler

Robin Teichmann

Stephan Oberle

Wolfram Hofschulte

Jens Fechler

Fabio Mauch

Nikolai Benz

Florian Werschler

Florian Hamburger

Patrick Zahn

Dr Florian Werschler

Dr Marco Werschler

A method for correcting a time-dependent measurement signal generated by means of an electric motor coupled on the output side to a transmission with regard to the influence of a variable output load and a variable rotational speed includes: tapping a time-varying measurement signal which is dependent on a torque of the motor transmission unit; generation of a useful signal, which is free of any DC component, from the measurement signal; interval-by-interval determination of RMS values from the measurement signal; generation of a load-corrected useful signal by an interval-by-interval division of the useful signal, which is free of any DC component, by the interval-specific RMS values; time-resolved determination of the rotational frequency of the motor from the measurement signal; scaling the load-corrected useful signal to the mean rotational frequency to generate a corrected measurement signal, and, use of the corrected measurement signal for fault detection of the motor transmission unit.

Method for correcting a time-dependent measurement signal of a motor transmission unit as well as a method for detecting wear and/or damage of the same by means of this correction method

The present invention relates to a longitudinal seat adjustment device (), comprising a rail () running along a longitudinal axis (X), a slide () with an electric drive device (), by means of which the slide can be moved along the longitudinal axis (X) of the rail (), and a first control unit () and a second control unit (), wherein the first control unit () is fixedly connected to the rail () and the second control unit () is arranged on the slide (), wherein the first control unit () and the second control unit () are connected via an electrical conductor () which can be energized by a voltage source () with a supply voltage (S), wherein the second control unit () can control the drive device (), and wherein the first control unit () and the second control unit () communicate via a communication signal (S) that can be modulated to the supply voltage.

Longitudinal seat adjustment device, method for adjusting a seat, and motor vehicle with the same longitudinal seat adjustment device

The present invention relates to a linear drive () having a drive shaft () along a longitudinal axis (X), at least two propelling teeth (), and at least one gear rack () comprising a plurality of teeth (), wherein the propelling teeth () are reciprocatingly movable perpendicularly to the longitudinal axis (X) and are drivingly connected to the drive shaft () such that said at least two propelling teeth () carry out at least one cyclical reciprocating movement () during the course of one rotation (φ) of the drive shaft (), dipping into and out of the at least one gear rack () in order to produce propelling motion along the longitudinal axis (X), and wherein the cyclical reciprocating movement () of the at least two propelling teeth () have phase shifts (Δφ). Furthermore, the present invention relates to a longitudinal-adjustment unit as well as to a motor vehicle coprising such a longitudinal-adjustment unit.

Linear drive, longitudinal-adjustment unit for a seat, and motor vehicle

The present invention relates to a linear drive (), comprising a camshaft () having at least one camshaft disk () which is arranged in a longitudinal axis (X), at least one rack () comprising at least one tooth (), and at least one propulsion element () having at least one propulsion tooth (), wherein the at least one propulsion element () has a recess () with which the camshaft () engages, wherein the camshaft () is coupled to the at least one propulsion element () by means of the at least one camshaft disk (), and wherein the propulsion element () can be pushed into and out of the rack () in order to generate a propulsion in the longitudinal axis (X) when the camshaft () rotates. In addition, the present invention relates to a longitudinal adjustment unit for a seat and to a motor vehicle having at least one longitudinal adjustment unit.

Linear drive, longitudinal adjustment unit of a seat, and motor vehicle

The present invention relates to a linear drive (), comprising a drive shaft () arranged along a longitudinal axis (X), at least two propulsion teeth (), and at least one rack () having a plurality of teeth (), wherein the propulsion teeth () can move in a stroke transversely to the longitudinal axis (X) and are drivingly coupled to the drive shaft () in such a manner that the at least two propulsion teeth () perform at least one cyclical stroke movement () in the course of one rotation (&#x3c6;) of the drive shaft () and enter and exit the at least one rack () to generate a propulsion in the longitudinal axis (X), and wherein the cyclical stroke movement () of the at least two propulsion teeth () takes place with a phase shift (&#x394;&#x3c6;). In addition, the present invention relates to a longitudinal adjustment unit and to a motor vehicle having such a longitudinal adjustment unit.

A linear drive has at least one rack which is arranged along a longitudinal axis and has a plurality of teeth, a drive shaft arranged in a transverse axis transversely to the longitudinal axis, and at least two propulsion elements, each having at least one propulsion tooth. The at least two propulsion elements are linearly movable in a stroke axis which is oriented transversely to the longitudinal axis and transversely to the drive shaft. The at least two propulsion elements are drivingly coupled to the drive shaft in such a manner that the at least two propulsion elements perform at least one cyclical stroke movement in the course of one rotation of the drive shaft and enter and exit the at least one rack to generate a propulsion in the longitudinal axis. The at least two propulsion elements enter and exit the at least one rack with a phase shift.

Linear drive, longitudinal adjustment device of a seat, and motor vehicle

The present invention relates to a linear drive (), comprising a drive shaft () that can be rotated about a longitudinal axis (X), at least one propulsion element () having a propulsion tooth (), a rack (), and at least one guide means (), wherein the at least one propulsion element () is coupled to the drive shaft () in such a way that the propulsion tooth () of said element is pressed into the rack () in a cyclical movement () during a rotation of the drive shaft () about the longitudinal axis (X) to generate an advance, and wherein, when the propulsion tooth () of the at least one propulsion element () is pressed into the rack (), the at least one guide means () forms an abutment which counteracts the rack () for the at least one propulsion element (). In addition, the present invention relates to a longitudinal adjustment unit and a motor vehicle.

Growing community of inventors

Schluchsee, Germany

Marcel Mittelbach