OPTOELECTRONIC DETECTION DEVICE WITH ADJUSTABLE BIAS VOLTAGE OF AN AVALANCHE-PHOTODETECTOR FOR A MOTOR VEHICLE, MOTOR VEHICLE AND CORRESPONDING METHOD

摘要

The invention relates to an optoelectronic detection device (7), in particular a laser scanner, for a motor vehicle, comprising an optical transmitter for transmitting magnetic beams, an avalanche photo detector (10) for capturing beams reflected by a target object in the surrounding area of the motor vehicle and for providing an electric capturing signal (11) in accordance with the captured beams, also comprising an evaluation device (12) for detecting the target object in accordance with the electric capturing signal (11), and a control device (17) which is designed to adjust an electric bias voltage (BU) of the avalanche photo detector (10) when said detection device (7) is in operation. Said detection device (7) comprises a measuring device for recording the value of the noise (R) of the electric capturing signal (11), and the control device (17) is designed to adjust the bias voltage (BU) of the avalanche photo detector (10) in accordance with the value of the noise (R).