A vehicle obstacle detection device can relatively increase a distance at which the vehicle obstacle detection device is able to detect an obstacle even when a voltage supplied from a power supply to a sensor fluctuates. The vehicle obstacle detection device includes a sensor that transmits and receives ultrasonic waves, and a controller that instructs the sensor to transmit the ultrasonic waves. The controller compares amplitude of reflected waves received by the sensor with a threshold to determine presence or absence of the obstacle. The controller includes a voltage monitoring unit that detects a power supply voltage. The controller more reduces the threshold as the power supply voltage detected by the voltage monitoring unit is lower.
VEHICLE OBSTACLE DETECTION DEVICE
VORRICHTUNG ZUR ERKENNUNG VON FAHRZEUGHINDERNISSEN
DISPOSITIF DE DÉTECTION D'OBSTACLE DE VÉHICULE
29.07.2020
Patent
Elektronische Ressource
Englisch
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