A high beam automatic leveling system using a direct current motor

Abstract

The utility model relates to a kind of headlamp automatic leveling system using direct current motor, including vehicle height sensor, vehicle controller and headlamp controller, vehicle controller is connected with vehicle height sensor signal, headlamp controller is connected with vehicle controller;Headlamp controller includes microprocessor, high-side drive module and PWM conversion voltage circuit;Direct current motor is connected with high-side drive module and PWM conversion voltage circuit;Microprocessor is connected with vehicle controller signal;High-side drive module is used to provide power supply for direct current motor;The output voltage of high-side drive module output voltage of PWM conversion voltage circuit output end is divided into voltage value.The utility model direct current motor output voltage of high-side drive module output voltage is divided into voltage value, and the function of headlamp automatic leveling is achieved by direct current motor output voltage value;PWM conversion voltage circuit is driven by PWM, voltage regulation, filter voltage division, ADC feedback, and the accurate conversion of the PWM signal of microprocessor to output voltage value is realized.

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