Patent ID: 9047782
Filing Date: 2015-06-02
Classification: G01S,G08G,G11C,H02M

Abstract:
1. A vehicle ultrasonic parking assistance apparatus comprising: two charge pumping circuits; and a controller configured to boost and output an input voltage Vcc by using the two charge pumping circuits, wherein, when the voltage Vcc is input, the controller sets an operation mode of each of the charge pumping circuits to a charging mode, and each of the charge pumping circuits is charged with the input voltage Vcc, and when each of the charge pumping circuits is fully charged, on a basis of output voltage information predetermined according to an ambient environment of a vehicle, the controller sets an output voltage of each of the charge pumping circuits, sets the operation mode of each of the charge pumping circuits to a discharging mode, and boosts the input voltage Vcc to the set output voltage to alternately output a positive (+) high-voltage pulse and a negative (−) high-voltage pulse.