US 12,345,809 B2
Vehicular radar sensor with antenna that provides improved blind-spot detection
Ha Bui-Van, Aschaffenburg (DE); and Wilhelm Johann Wolfgang Wöhlte, Sailauf (DE)
Assigned to Magna Electronics Inc., Auburn Hills, MI (US)
Filed by Magna Electronics Inc., Auburn Hills, MI (US)
Filed on Apr. 19, 2023, as Appl. No. 18/303,202.
Claims priority of provisional application 63/363,250, filed on Apr. 20, 2022.
Prior Publication US 2024/0118414 A1, Apr. 11, 2024
Int. Cl. G01S 13/931 (2020.01); G01S 7/41 (2006.01); G01S 13/04 (2006.01)
CPC G01S 13/931 (2013.01) [G01S 7/41 (2013.01); G01S 13/04 (2013.01); G01S 2013/93271 (2020.01); G01S 2013/93275 (2020.01)] 23 Claims
OG exemplary drawing
 
19. A vehicular sensing system, the vehicular sensing system comprising:
a radar sensor disposed at a vehicle equipped with the vehicular sensing system, wherein the radar sensor is operable to capture radar data;
wherein the radar sensor comprises (i) a plurality of transmitters that transmit radio signals and (ii) a plurality of receivers that receive radio signals;
an electronic control unit (ECU) comprising electronic circuitry and associated software;
wherein the electronic circuitry of the ECU comprises a data processor for processing radar data captured by the radar sensor;
wherein the radar sensor comprises a plurality of facets, and wherein an outboard surface of each facet of the plurality of facets is arranged at an obtuse angle relative to an adjacent facet of the plurality of facets, and wherein each facet of the plurality of facets has (i) a respective transmitter of the plurality of transmitters disposed thereat and (ii) a respective receiver of the plurality of receivers disposed thereat;
wherein each facet comprises a plurality of layers, and wherein the plurality of layers comprises an outer layer, an inner layer, and at least one intermediate layer;
wherein the respective transmitter and the respective receiver of each facet of the plurality of facets has a respective field of sensing and a respective principal sensing axis, and wherein each respective principal sensing axis is perpendicular to the respective facet;
wherein the respective field of sensing of the respective transmitter and the respective receiver of one of the facets at least partially overlaps the respective field of sensing of the respective transmitter and the respective receiver of another facet adjacent to the one of the facets;
wherein the radar sensor comprises a planar printed circuit board (PCB), and wherein the plurality of facets comprises three facets, and wherein only one facet of the three facets is mounted to the planar PCB;
wherein the vehicular sensing system, responsive to processing by the data processor of sensor data captured by the radar sensor, determines presence of an object within at least one respective field of sensing of the radar sensor; and
wherein the vehicular sensing system, responsive to determining presence of the object, controls a system of the vehicle based on the determined presence of the object.