# US 2014/0191895 A1 · Radar system for motor vehicles, and motor vehicle having a radar system

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- Number: US 2014/0191895 A1
- Document ID: US20140191895A1
- Status: Published application
- Kind: A1
- Application number: 14/130,431
- Filed: 2012-05-08
- Published: 2014-07-10
- Earliest claimed: 2011-07-05
- Assignees: Robert Bosch GmbH
- Inventors: Thomas Binzer; Christian Waldschmidt; Raphael Hellinger
- Web page: https://patentgrep.com/patent/US20140191895A1

## CPC

- G01S 13/02: Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S 13/878: {Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector (G01S13/874 takes precedence)}
- G01S 13/931: of land vehicles
- G01S 2013/9315: {Monitoring blind spots}
- G01S 2013/93271: {in the front of the vehicles}
- G01S 2013/93272: {in the back of the vehicles}
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## Abstract

A radar system for motor vehicles has at least two radar sensors for emitting and receiving radar radiation for monitoring the surroundings of the motor vehicle, the at least two radar sensors being each positioned at an angle between 40 degrees and 50 degrees to an axis, and the at least two radar sensors being configured in such a way that the respective antenna has a pivotable visual range of an angle between at least −60 degrees and +60 degrees, in particular between −45 degrees and +45 degrees, relative to the main emission direction of the respective radar sensor.

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

A radar system for a motor vehicle, comprising:
at least two radar sensors each transmitting and receiving radar radiation for monitoring the surroundings of the motor vehicle;
wherein the at least two radar sensors are each positioned at an angle between 40 degrees and 50 degrees relative to a common axis, the at least two radar sensors each have at least one antenna, and wherein the at least two radar sensors are configured in such a way that each respective antenna has a pivotable visual range of an angle between at least −60 degrees and +60 degrees relative to a main emission direction of the corresponding radar sensor.

### Claim 12 (depends on 11)

The radar system as recited in claim 11, wherein at least four radar sensors are each positioned symmetrically relative to one other.

### Claim 13 (depends on 11)

The radar system as recited in claim 11, wherein at least one of the radar sensors is configured to provide essentially simultaneously at least two visual ranges of the at least one antenna, the at least two visual ranges differing in directions.

### Claim 14 (depends on 13)

The radar system as recited in claim 13, wherein a control unit is provided for controlling the visual ranges of the at least one antenna of the at least one of the radar sensors.

### Claim 15 (depends on 14)

The radar system as recited in claim 14, wherein the control unit is configured to adjust the visual ranges of the at least one antenna of the at least one radar sensor between +45 degrees and −45 degrees relative to the main emission direction of the at least one radar sensor.

### Claim 16 (depends on 11)

The radar system as recited in claim 11, wherein at least one antenna of at least one radar sensor has visual ranges which are configured differently for different angles relative to the main emission direction of the at least one radar sensor.

### Claim 17 (depends on 16)

The radar system as recited in claim 16, wherein the at least one radar sensor includes a plurality of phased array antennas whose respective visual ranges are pivotable with the aid of at least one of amplitude modulation and phase modulation.

### Claim 18 (depends on 12)

The radar system as recited in claim 12, wherein the at least four radar sensors are positioned symmetrically to the left and right of the vehicle's longitudinal axis and in a front area and a rear area of the motor vehicle, and wherein the radar sensors are each positioned at a respective angle of 45 degrees relative to the vehicle longitudinal axis.

### Claim 20

A method of using a radar system in a motor vehicle for at least one of blind spot detection, lane change assistance, cross-traffic detection, and accident detection, the method comprising:
providing at least two radar sensors each transmitting and receiving radar radiation for monitoring the surroundings of the motor vehicle;
wherein the at least two radar sensors are each positioned at an angle between 40 degrees and 50 degrees relative to a common axis, the at least two radar sensors each have at least one antenna, and wherein the at least two radar sensors are configured in such a way that each respective antenna has a pivotable visual range of an angle between at least −60 degrees and +60 degrees relative to a main emission direction of the corresponding radar sensor.