DEVICE FOR CONTROLLING VANE OF VARIABLE NOZZLE OF TURBOCHARGER BY ELECTRONIC CONTROL ACTUATOR CORRESPONDING TO CONTROL SIGNAL FROM ELECTRONIC CONTROL UNIT OF ENGINE

摘要

PURPOSE: A variable nozzle control device of a turbocharger is provided to reduce the size of the entire system by decreasing the size of the actuator, and to increase the durability by cleaning soot and operating the vane of the variable nozzle smoothly. CONSTITUTION: A variable nozzle control device for a turbocharger(14) of an engine is composed of a variable nozzle having a vane, an engine ECU(Electronic Control Unit,16) checking the operation of the engine by a sensor and outputting the control signal, and an electronic control actuator(18) controlling operation of the vane corresponding to the control signal from the engine ECU. The electronic control actuator comprises an electronic control circuit unit receiving the opening command information of the vane from the engine ECU and outputting the signal, a driving unit receiving the signal from the electronic control circuit and driving the vane of the variable nozzle throughout the output shaft, and an angle sensor detecting the rotational angle of the output shaft to output the actual angle signal of the output shaft to the electronic control circuit.