| 摘要 |
PURPOSE: A vehicle muffler device is provided to drive a motor forwardly according to an engine rpm by using an engine speed sensor and a brake sensor for speedily discharging the exhaust gas and reversely if a brake is pushed while driving for driving the motor reversely, thereby improving the engine output and the brake performance. CONSTITUTION: A vehicle muffler device includes an engine speed sensor(10), a brake sensor(20), and a microcomputer(40) of a control part(30) for receiving output signals of the sensors to control the signals, wherein the microcomputer turns on a transistor(Q1) according to a high or low level of the engine speed sensor signal to drive a motor(70) forward, and turns on a transistor(Q2) according to the turning on/off of the brake signal to drive a relay part(60) for driving the motor reversely. |
