MOTOR VEHICLE WITH A RADAR MECHANISM AND PROCEDURE FOR THE OPERATION OF A RADAR MECHANISM

• US 20110234449A1
• Filed: 03/22/2011
• Published: 09/29/2011
• Est. Priority Date: 03/24/2010
• Status: Active Grant

• Current Assignee: Valeo Schalter und Sensoren GmbH (Valeo SE)
• Original Assignee: Valeo Schalter und Sensoren GmbH (Valeo SE)
• Inventors: Haberland, Udo
• Granted Patent: US 9,304,196 B2
• Time in Patent Office: Days
• US Class Current: 342/70
• CPC Class Codes: G01S 13/343 using sawtooth modulation
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 2013/9315 Monitoring blind spots
• CPC Class Codes: G01S 2013/93272 in the back of the vehicles
• CPC Class Codes: G01S 2013/93274 on the side of the vehicles
• CPC Class Codes: G01S 2013/93275 in the bumper area

Abstract

The invention relates to a motor vehicle with a radar device (3, 4) which is designed for detecting an object (25) located in a detection zone (7, 8) of the radar device (3, 4), wherein the detection zone (7, 8) is defined by an elevation angle zone (δ₁, δ₂) and an azimuth angle zone (α), wherein the elevation angle zone (δ₁, δ₂) also covers at least such a partial angle zone (δ₁) which lies within an angle interval of 15° to 90° above a horizontal (33) defined with respect to the motor vehicle (1).

Claims

1. A motor vehicle with a radar device for detecting an object located in a detection zone of the radar device, wherein the detection zone is defined by an elevation angle zone and an azimuth angle zone, wherein the elevation angle zone also covers at least such a partial angle zone which lies within an angle interval of 15°

to 90°

above a horizontal defined with respect to the motor vehicle.

2. The motor vehicle according to claim 1, wherein the partial angle zone is covered in an angle interval of 30°

to 60°

above the horizontal.

3. The motor vehicle according to claim 1, wherein the elevation angle zone also covers a further partial angle zone which lies within an angle interval of −

10°

to 10°

with respect to the horizontal.

4. The motor vehicle according to claim 1, wherein the azimuth angle covers at least a section of a dead angle zone.

5. The motor vehicle according to claim 1, wherein the radar device comprises an antenna unit, the directional characteristic of which comprises, in the vertical direction, a main lobe which is horizontally aligned with an accuracy of 10°

and a side lobe which encloses with the main lobe an angle from an angle interval of 10°

to 90°

.

6. The motor vehicle according to claim 1, wherein the radar device comprises a transmitting antenna unit for transmitting electromagnetic waves, the directional characteristic of which comprises in the vertical direction a main lobe which is horizontally aligned with an accuracy of 10°

and a side lobe which encloses with the main lobe an angle from an angle interval of 10°

to 90°

.

7. The motor vehicle according to claim 1, wherein the radar device comprises a receiving antenna unit, the directional characteristic of which comprises, in the vertical direction, a main lobe which is horizontally aligned with an accuracy of 10°

, and a side lobe which encloses with the main lobe an angle from an angle interval of 10°

to 90°

.

8. The motor vehicle according to claim 5, wherein a power ratio of main lobe to side lobe lies in a value range of 10 dB to 15 dB.

9. The motor vehicle according to claim 5, wherein the side lobe of the directional characteristic can be activated or deactivated by switching on or off individual antenna elements of the antenna unit.

10. The motor vehicle according to claim 1 the radar device has a receiving antenna unit, the directional characteristic of which comprises, in the vertical direction, a main lobe by which the entire elevation angle zone is covered.

11. A method for operating a radar device in a motor vehicle, comprising:

detecting objects located in a detection zone of the radar device,

wherein the detection zone is defined by an elevation angle zone and an azimuth angle zone, and wherein the elevation angle zone also covers at least such a partial angle zone which lies within an angle interval of 15°

to 90°

above a horizontal defined with respect to the motor vehicle.