Robert Boschgmbh

Klaus Winter

Hermann Winner

Bernhard Lucas

Herbert Olbrich

Reiner Marchthaler

Thomas Beez

Hermann Mayer

Jens Lueder

Klaus-Peter Wagner

Stephan Leinbaum

Albrecht Irion

Heinz Pfizenmaier

Joachim Hauk

Andreas Kugler

Ralph Lauxmann

Juergen Hildebrandt

Dietrich Adolph

Andreas Reichert

Guenter Schirmer

Oliver Wackerl

Dirk Ulbricht

Sabine Koerber

Klaus Lehre

Wolfgang Peveling

Thomas Klaas

Sonja Eder

Christiane Stortz

Wolfgang Ehrlinger

Werner Kederer

Juergen Detlefsen

J&ouml;rg Schneemann

A method as well as a device for the lane allocation of consecutive vehicles, the lane allocation being carried out in a model-based manner via a frequency distribution of the lateral displacements of detected radar objects. The method is additionally used for detecting the misalignment of the sensor.

Model-supported allocation of vehicles to traffic lanes

Distance and velocity measuring at a plurality of objects using FMCW radar includes repeating measurements using different frequency ramps and including mixing transmitted and received signals, and recording the mixed signal's spectrum. A matching includes recording spectra peaks for ramps, if belonging to the same object, allocating them to each other, and calculating distances and velocities from peak frequencies. A tracking includes identifying with one another objects measured at various times based on distance and velocity consistency. Each measuring cycle includes less than four measurements with different frequency ramps. For each plausible two peak combination recorded, respectively, during first and second measurements of a cycle, distance and velocity of one possible object represented by these peaks are calculated. A measurement's anticipated result, is calculated from distance and velocity of the possible object, discarded if an anticipated result does not agree with the measured result.

Method for measuring distances and speeds of several objects by means of an FMCW radar

A device for a front-end component part of a motor vehicle, behind which a radar transmitter/receiver is fastened in such a way that the latter is not visible from in front. In winterish surroundings, ice and snow deposits may occur on the front component part, whereby the functionability of the radar sensor may be impaired. It is possible to remove and/or prevent these precipitation deposits on the front component part.

Device to be mounted on the front part of a motor vehicle

A device for a radar system, the device being supplied with the received signals of at least two receiving antennas as input signals, and in which the output signals of this device are supplied to at least one unit for evaluating the received signals which includes at least two evaluation channels. Different input channels are allocated to the at least two evaluation channels as a function of supplied control signals.

Device for a radar system

A support for an adjustable sensor housing, in particular for a radar sensor, in which the position of the sensor housing on the support is changeable using at least one adjusting screw. The at least one adjusting screw is able to be rotated using a regulatable adjusting drive, and for adjustment of the sensor housing there is an electronic control system present which conveys adjustment signals to the particular adjusting drive. A plug-in connection for a bus connection of the control unit electronics for communication with a higher-level bus system is present, and a compact support housing is constructed in which the electronic control system, the at least one adjusting drive and the plug-in connection are accommodated, and from which attachment points of the adjusting screws for the adjustable sensor housing protrude.

Support for an adjustable housing

A distance sensor having a sensor for a motor vehicle in which an arrangement is provided by which gnment angles and trajectory curvatures can be compensated for during travel not only on a straight road but also along curves. In a sensor mounted displaced from the center line of the vehicle, an angle (alpha_sensor) is measured which cuts the projected center line of the motor vehicle at the target object, a vehicle driving ahead. By the additional use of a yaw rate sensor, curve curvatures of the road are also compensated for, so that angle and distance measurement can also be made along curves.

Distance sensor with a compensation device for an angle misalignment on a vehicle

A method for correction of the detection range of a distance sensor, which is installed with an eccentricity laterally offset with respect to the central axis of a motor vehicle. In order to correct the detection range, a correction angle is used, with which the eccentricity of the distance sensor is corrected at the time of its installation. Thus the distance sensor is not aligned parallel to the longitudinal axis of the vehicle, but to its central axis. Thus, the detection range is advantageously covered approximately symmetrically to the longitudinal axis of the vehicle. The correction angle is determined either empirically, via appropriate test measurements, or mathematically.

Method for correcting the visual range of a distance sensor that is assembled in such a way that said sensor is offset from the center line of a motor vehicle

A method for detecting and compensating for nonlinearities in a microwave radar system, in which a transmitted signal frequency-modulated according to a defined function is generated with a transmitting oscillator, and from the mixing of the transmitted signal with a received signal reflected from an object, a distance of the microwave radar system from the object is ascertained. In defined time windows, instead of a trigger voltage effecting frequency modulation, a defined constant test trigger voltage is switched to the transmitting oscillator; a reference signal ascertained in the context of the respective constant test trigger voltage, which signal corresponds to a frequency value of the transmitting oscillator, is employed to correct the characteristic for the frequency modulation and thus to compensate for nonlinearities.

Method for detecting and correcting non-linearities in a microwave radar system

Method and device for state estimation in a system for automatic longitudinal and/or transverse regulation in a motor vehicle, operating according to the radar principle and/or the lidar principle, in particular for detecting soiling and/or blindness of a sensor is disclosed. The state estimation is dependent upon at least two indicators, which are formed from the signals received and/or transmitted by the sensor.

Method and device for identifying the state of a system for effecting the automatic longitudinal and/or lateral control of a motor vehicle

A method for measuring the distance and speed of objects using electromagnetic waves with a motor vehicle radar system is described, electromagnetic waves being transmitted and simultaneously received, the transmitted electromagnetic waves being modulated in the shape of a ramp, at least the signals received during one rise and one drop of the frequency of the transmitted signal being mixed in each case with the transmitted signal, a number of intermediate frequency signals being formed, and the distance and speed of the object being calculated using the intermediate frequency, a weather condition in the vicinity of the motor vehicle and/or a disturbance in the motor vehicle radar system being identified on the basis of characteristic intermediate frequency signals.

Method for measuring the distance and speed of objects

A motor vehicle radar system having at least one sensor-radiation transparent body for focusing the sensor beam and/or at least one radome without intentional focusing in the beam path, at least one arrangement made of electrical printed circuit traces being arranged in the area of the sensor-radiation transparent body and/or the radome, the arrangement being suitable at least for heating the sensor-radiation transparent body and/or the radome, electrical power being able to be supplied to the electrical printed circuit traces, power control of the supplied electrical power being carried out as a function of operating states and ambient conditions, such that the surface temperature (TL) of the sensor-radiation transparent body and/or the radome does not exceed preestablished temperature values.

Radar system in a motor vehicle

System for measuring the distance and the relative speed between objects using electromagnetic waves, having means for emitting electromagnetic waves from a first object and having means for receiving reflected electromagnetic waves from at least one second object, the frequency of the emitted signal being modulated in such a way that the modulation frequency, during a first time segment, increases approximately linearly from a first to a second modulation frequency value, that the modulation frequency, during a second time segment, is approximately constant, that the modulation frequency, during a third time segment, decreases approximately linearly from the second to a third modulation frequency value, that the modulation frequency, during a fourth time segment, is approximately constant, and that these time segments recur repeatedly, at least one of the modulation frequency values and/or the duration of at least one time segment being changeable.

System for measuring the distance and the relative velocity between objects

A device for adjusting a beam system is proposed including a base having at least one beam source, and at least three supporting elements, which fix the base to a carrier, each length of the at least three supporting elements being capable of being changed selectively and independently of one another in order to change the distance of the at least one beam source from a focusing arrangement, and in order to change the alignment of the at least one beam source in relation to the focusing arrangement.

Device for adjusting a beam system

A method and a radar sensor for determining an elevation angle error of a multibeam radar sensor are described. In order to detect an elevation angle of the multibeam radar system with respect to a predefined target, a plurality of laterally arranged cutting planes at a predefined distance are formed. The values of the corresponding antenna diagrams in each plane are stored in a suitable form, for example, normalized and in a parametric form taking into account the elevation angle &agr;. In order to reduce the size of the memory, it is sufficient to store one symmetry half for reasons of symmetry if additional information, for example, road clutter values are added, so that the upward or downward direction of the angle can be recognized. By comparing the measured echo values obtained by normalization and application of a quality factor, a corresponding elevation angle &agr; is obtained for each cutting plane. Using an appropriate histogram, an angle for the maladjustment of radar sensor can be determined from the measured values stored over a longer period of time.

Device for detecting angle of elevation error in a multiple beam radar sensor

A method of detecting and compensating for non-linearities in a microwave radar system in which a transmitted signal, frequency modulated according to a predefined function, is generated using a transmit oscillator, and by mixing the transmitted signal with a received signal reflected by an object, a distance of the microwave radar system from the object is determined. In predefined time windows a predefined constant test control voltage is applied to the transmit oscillator instead of a control voltage effecting frequency modulation, preferably using a test ramp, the voltage/frequency characteristic of a module being updated during the time window in order to generate the function characteristic for frequency modulation taking into consideration the reference signal.

Growing community of inventors

Schwieberdingen, Germany

Klaus Winter