System and method for controlling an exhaust brake of a vehicle

摘要

A system and method for controlling an exhaust brake of a vehicle may measure rotation speed (RPM) of an engine, transmit the rotation speed of the engine to a control unit, determine an opening of a valve which opens/closes an exhaust pipe of the engine in the control unit based on the rotation speed of the engine to maintain the back pressure of exhaust gas generated by the exhaust brake to be constant, and control the valve according to the valve opening determined by the control unit.

主权项

1. A system for controlling an exhaust brake of a vehicle, comprising:
a measuring unit for measuring a rotation speed (RPM) of an engine; a valve unit connected to an exhaust pipe of the engine; an actuator connected to the valve unit and controlling an opening amount of the exhaust pipe; and a control unit for controlling the actuator to control the opening amount of the valve unit, wherein the control unit controls the actuator based on a rotation speed of the engine measured by the measuring unit, thereby maintaining back pressure of exhaust gas generated by the exhaust brake to be constant, wherein the actuator is a motor connected to the valve unit, and wherein the control unit controls the opening amount by controlling a rotation of the motor, and wherein the valve unit includes:
a first worm directly connected to and rotating with a rotating shaft of the motor;a second worm engaged with the first worm and moving back or forth with a rotation of the first worm; anda valve body connected to the second worm and disposed at an end of the exhaust pipe to control the opening amount of the exhaust pipe by moving the valve body back and forth.