Robert Boschgmbh

Herrmann Ultraschalltechnik Gmbh & Co. Kg

Thomas Herrmann

Bernhard Mattes

Hartmut Schumacher

Werner Nitschke

Erich Zabler

Klaus Dobler

Thomas Lich

Anton Dukart

Michael Schmid

Rainer Moritz

Mario Kroeninger

Volker Aust

Rolf-Juergen Recknagel

Knut Balzer

Ulrike Groeger

Rolf Aidam

Katja Hambsch

Hans Guettler

Hans-Peter Stumpp

Franz Bobschek-Born

Alexander Vogt

Lothar Groesch

Invention relating to a method for controlling an ultrasonic machining, in which an ultrasonic vibration is transmitted via a sonotrode into the material to be machined. During the first machining interval, a first welding variable of the group S, consisting of the frequency f and the amplitude &#xfc; of the ultrasonic vibration, the force F, which the sonotrode exerts on the material to be machined, the power P, which the generator delivers, and the speed v, with which the sonotrode is moved in the direction of the material to be machined, is kept constant until a first target variable of the group Z adopts a predetermined value. During an adjoining second machining interval, a second welding variable of the group S is kept constant until a second target variable of the group Z adopts a predetermined value, wherein the first and the second target variable differ.

Method for controlling an ultrasonic machining process

The invention relates to a method for producing a transverse sealing seam in a tubular bag () having a longitudinal sealing seam (), wherein the tubular bag () is passed through between a sonotrode () and an anvil () and, in order to produce the transverse sealing seam, the sonotrode () and the anvil () are moved toward each other so that a welding force is applied to the tubular bag (). In order to provide a method and transverse sealing device with which the stated disadvantages can be overcome at least reduced, the longitudinal sealing seam () is moved through a gap () formed in the sonotrode () or the counter tool () at least during the application of the welding force.

Method for producing a transverse sealing seam and transverse sealing device

The invention relates to an ultrasound welding device () for ultrasonic machining of a material by means of a sonotrode () mounted in a vibration-decoupled manner, which sonotrode comprises a sealing surface having a cylinder barrel shape, and a counter tool (), wherein a converter is connected to the sonotrode () optionally via a first amplitude transformation unit and the sonotrode () and the first converter are designed in such a manner that the sonotrode () can be set into vibration by means of a natural vibration of the ultrasonic frequency f.

Ultrasound welding device comprising vibration-decoupled counter tool

Invention relating to a method for controlling an ultrasonic machining, in which an ultrasonic vibration is transmitted via a sonotrode into the material to be machined. During the first machining interval, a first welding variable of the group S, consisting of the frequency f and the amplitude &#xfc; of the ultrasonic vibration, the force F, which the sonotrode exerts on the material to be machined, the power P, which the generator delivers, and the speed v, with which the sonotrode is moved in the direction of the material to be machined, is kept constant until a first target variable of the group Z adopts a predetermined value. During an adjoining second machining interval, a second welding variable of the group S is kept constant until a second target variable of the group Z adopts a predetermined value, wherein the first and the second target value differ.

A method for controlling vehicle dynamics in a motor vehicle, at least one sensor recording at least one measured value; at least one actuator for controlling vehicle dynamics being driven as a function of the at least one measured value; at least one image sensor system generating image information from the motor-vehicle surround for controlling vehicle dynamics; at least two image sensors being provided which essentially record the same scene.

Controlling vehicle dynamics through the use of an image sensor system

A vehicle upfront sensor is described that has a cavity and a sensing element therein. A collision is detected as a function of the deformation of the cavity. The sensing element may be designed as a pressure or temperature sensor, the cavity then being largely closed, so that an adiabatic pressure or temperature increase is measurable.

Vehicle upfront sensor

A device for detecting rollover includes a stereo camera in the direction of travel. The camera allows the distance to an object outside the vehicle to be measured, and, in each instance, image vectors to this object are calculated. If the vertical component of these image vectors now changes over time, then a rollover event is detected as a function of this change.

Device for identifying the risk of a rollover

A method of checking the functional reliability of a pressure sensor, the air pressure being detected inside a vehicle body part, the vehicle having at least one additional pressure sensor for detecting the air pressure. With the help of the method, it may be possible to determine the integrity of the sensor without requiring any additional auxiliary equipment. To do so, the measured values of the pressure sensor and the measured values of the at least one additional pressure sensor are compared over a defined observation period. The pressure sensor is recognized as being defective if its measured values deviate by more than a predefined amount from the measured values of the at least one additional pressure sensor.

Method of checking the functional reliability of a pressure sensor

A method is indicated according to which the triggering of a restraining device or devices in a vehicle can be adjusted to specific characteristics of the vehicle involved in the impending crash in such a way as to furnish optimum protection for the vehicle occupants. To this end, before a crash between two vehicles, each vehicle transmits data concerning its own vehicle-specific characteristics that can affect the course of the crash, and each vehicle receives the vehicle-specific data transmitted by the other vehicle and derives from them control data for triggering its restraining device or devices.

Method for determining control data for deploying restraint elements in a vehicle prior to a collision

An arrangement that can be implemented with a simple circuit includes a measuring resistance that can either be connected in addition to a load or connected in place of the load. Furthermore, elements are provided that record the change in resistance resulting from the connection of the measuring resistance and signal when the change in resistance differs from a predefined value.

System for checking the resistance of a load connected to a transformer

An apparatus for noncontact transmission of signals between a steering wheel and a steering column includes an airbag triggering device and a diagnostic device on the steering wheel side. The diagnostic device monitors the function of the airbag triggering device and transmits its diagnostic signal via a rotary transfer unit to a control device located on the steering column side. A simulation circuit, which can be set as a function of the diagnostic signal to the diagnosed resistance of the triggering device, precedes the control device on the steering column side.

Apparatus for noncontact transmission of signals between steering wheel

System for controlling the resistance of a load connected to a

Arrangement for contactless transmission of signals between vehicle

Device for the contactless transfer of signals between two vehicle parts

A method and a device for sensing and analyzing an imminent collision of a motor vehicle with an obstacle. Using an FMCW radar method, obstacles are detected in the form of a spectral line. Via a proper filtering, time profiles of amplitude values of the spectral lines are produced and recorded. By comparing one actively recorded time profile to stored characteristic profiles, a lateral offset y between the motor vehicle and the obstacle is determined. Alternatively or in combination, the lateral offset can also be determined on the basis of characteristic profiles of relative velocity values.

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Oehringen, Germany

Thomas Herrmann