A driving assistance system for a vehicle has a longer-distance sensor device for determining longer-distance information between a vehicle and an obstacle, and a shorter-distance sensor device for determining shorter-distance information between the vehicle and the obstacle. A dual-mode light emitting diode (LED module) can selectively emit both visible light and infrared light, and is part of the vehicle's driving-lights system, such as a headlight and/or a reversing light. The LED module emits infrared light when operating as part of the shorter-distance sensor device and an infrared receiver detects the reflected infrared light for distance determination. The longer-distance sensor device uses ultrasonic waves to determine distance information, and when it indicates that the distance has fallen below a threshold distance (below which the longer-distance sensing device is not reliable), a controller activates the shorter-distance sensing device.
DRIVING ASSISTANCE SYSTEM WITH SHORT-DISTANCE RANGING
2018-10-18
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G01S RADIO DIRECTION-FINDING , Funkpeilung |
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