Valeo Schalter Und Sensoren Gmbh

Agilent Technologies, Inc.

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Udo Haberland

Wolf Steffens

Michael Hallek

Urs Luebbert

Lorenz-Peter Schmidt

Anton Lill

Uwe Papziner

Jochen Weinzierl

Jens Heitkamp

Frank Sickinger

Robert Rehner

Alicja Ossowska

Stefan Goerner

Patrick Pfitzenmaier

Andreas Schmidt

Urs Lübbert

Frank Künzler

Michael Grinberg

Dieter Willersinn

Kristian Kroschel

Dietmar GRÜDL

A method for detecting interference in a received signal received by a radar sensor of a motor vehicle is disclosed. For detecting a target object in an environment of the motor vehicle, a transmit signal is emitted by the radar sensor, which includes a sequence of consecutive frequency-modulated chirp signals. The radar sensor then receives an echo signal reflected on the target object as the received signal with the superimposed interference. After receiving the received signal, the interference in the chirp signals of the received signal is detected.

Method for detecting interference in a received signal of a radar sensor, driver assistance device and motor vehicle

The invention relates to a motor vehicle with a radar device () which is designed for detecting an object () located in a detection zone () of the radar device (), wherein the detection zone () is defined by an elevation angle zone (&#x3b4;, &#x3b4;) and an azimuth angle zone (&#x3b1;), wherein the elevation angle zone (&#x3b4;, &#x3b4;) also covers at least such a partial angle zone (&#x3b4;) which lies within an angle interval of 15&#xb0; to 90&#xb0; above a horizontal () defined with respect to the motor vehicle ().

Motor vehicle with a radar mechanism and procedure for the operation of a radar mechanism

A method for unambiguous determination of a range to and/or of a relative velocity of an object with respect to a motor vehicle is disclosed. An unambiguity area (RUn) for the range and/or an unambiguity area (VUn) for the relative velocity may be determined by means of a frequency-modulation continuous-wave radar in the motor vehicle, with a predetermined sequence of frequency-modulated signal pulses being transmitted by the frequency-modulation continuous-wave radar in a measurement cycle. Mutually different unambiguity areas (RUn) for the range and/or mutually different unambiguity areas (VUn) for the relative velocity are defined for at least two successive measurement cycles, and the range and/or the relative velocity are/is determined on the basis of, in each case, at least one measured value for the range and/or for the relative velocity from each measurement cycle.

Method for unambiguously determining a range and/or a relative speed of an object, driver assistance device and motor vehicle

The invention relates to a driver assistance device () for a vehicle (), which driver assistance device has a radar appliance () for determining at least one measured variable (&#x3b1;, &#x3b1;, R, R) referenced to an object () that is external to the vehicle, wherein the radar appliance () comprises:

Driver assistance device for a vehicle and method for operating a radar device

Presented is a method for determining speeds (vr, vr) and distances (r, r) of objects () relative to a radar system () of a motor vehicle (), wherein a coverage area (EB) of the radar system () is divided into at least two part-areas (TB, TB, TB), the coverage area (EB) is examined for reflecting objects () in successive measuring cycles (MZ, MZ; MZi, MZi+1), wherein radar signals received in a measuring cycle (MZ, MZ; MZi, MZi+1) are processed separated in accordance with part-areas (TB, TB, TB) and processed signals are assembled to form a total result differentiated in accordance with spatial directions. The method is characterized in that from signals received in a first measuring cycle (MZ; MZi), hypotheses for the distance (r, r) and speed (vr, vr) of reflecting objects () are formed and the hypotheses are validated in dependence on signals received in at least one further measuring cycle (MZ; MZi+2). Furthermore, a radar system () is presented which carries out such a method.

Motor vehicle radar system, and method for determining speeds and distances of objects

Plug connections on radar sensors include plug pins which are inserted into plastic. The plastic that surrounds the plug pins is at least partially provided with a granulate that absorbs radar waves, such that the electrical impedance of the plastic has a high value in low-frequency range, and the plastic comprises a characteristic which absorbs radar waves in a region of higher-frequency radar waves. The plug pins are surrounded by a thin layer of plastic without radar-absorbent granulate, and a remainder of an area surrounding the plug pins includes the plastic with the granulate which absorbs radar waves.

Plug connections on radar sensors and method for their production

The invention relates to an assistance system for motor vehicles (), said system having a distance detection system () and a warning system (), wherein provision is made of an evaluation unit () which combines items of information () obtained by the distance detection system () and by the warning system (). The invention also relates to a method for operating an assistance system ().

Auxiliary system for motor vehicles

An apparatus and a method for determining a distance (r) to a target object () proposes transmitting electromagnetic waves in the form of a transmission signal () by a transmitter (), receiving at least one part of said transmission signal () reflected by a the target object () in the form of a reception signal () by receiving device () and evaluating the reception signal () according a reference signal () which has a known phase difference with respect to the transmission signal () and a frequency equal to the frequency thereof. The reference () and reception () signal frequencies are reduced in a frequency divider () with the same predefined divider factor (x) while preserving the existing phase difference between the reference signal () and the reception () signal in such a way that a reduced frequency reception signal (') and a reduced frequency reception signal () are obtained. The frequency difference between the reduced frequency reception signal (&#x2032;) and reduced frequency reception signal (&#x2032;) is evaluated in order to determine the distance (R).

Method and device for determining a distance to a target object

The invention relates to a method for operating a radar system () especially of a motor vehicle (), comprising at least one first sensor module () and at least one additional sensor module (). A detection range (A) of the first sensor module () at least partly overlaps a detection range (B) of the additional sensor module () while the first sensor module () receives a transmit signal transmitted by the additional sensor module () in a monitoring mode () in order to obtain information about the operating condition of the additional sensor module ().

Method for the operation of a radar system

An FMCW radar method is presented in which a radar system of a motor vehicle emits and receives radar waves, and in which a distance between an object and the motor vehicle is determined from a frequency shift between transmitted and received radar waves, and in which a speed of an object is determined from phase positions of received radar waves. The method is defined by the fact that in first time periods (T_A, T_B) it is carried out for objects in at least a first partial area (A, B) of the surroundings of the motor vehicle, and in second time period (T_C, T_D, T_E, T_F, T_G) distances, but not speeds, are determined for objects in at least a second partial area (C, D, E, F, G) of the surroundings.

Motor vehicle wheel behaviour and radar system

A wavelength tunable cavity includes a first reflecting unit adapted to at least partially reflect a beam of electromagnetic radiation towards a second reflecting unit, adapted to at least partially reflect a beam of electromagnetic radiation back towards said first reflecting unit, both reflecting units providing resonance modes of said electromagnetic radiation within said cavity, wherein an optical path of said beam within said cavity is defined in length by said first and second reflecting unit, a grating arranged within said optical path of said beam reflected by said first reflecting unit, said grating adapted for tuning the wavelength of said beam, wherein said at least one second reflecting unit is rotatable about an axis by at least 360 degrees along a circle path with respect to said grating, said circle path including at least a portion arranged to intersect with said beam, which is redirected by said grating.

Wavelength tunable cavity with rotational movement

The present invention relates to an apparatus and to a method of load dependent analyzing an optical component (), comprising the steps of: splitting an initial signal () into the reference signal () into and into a measurement signal (), intermittently providing a load signal () to the component (), providing the measurement signal (), to the component (),so that the component () can influence the measurement signal () to create a signal () influenced by and received from the component (), superimposing the reference signal with the signal () received from the component (), to provide a superimposed signal (), detecting the superimposed signal () when the loading signal () is not present at the component () to provide an information containing signal (), and processing the information containing signal () to determine an optical property of the component () dependent on a property of the load signal ().

Growing community of inventors

Holzgerlingen, Germany

Udo Haberland