TRANSFER CASE HAVING A BRAKE AND AN ELECTROMAGNETIC SYNCHRONIZER FOR KEEPING THE DIRECTION OF ROTATIONAL GAP BY SUPPLYING ENERGY TO AN ELECTROMAGNETIC COIL IN CHANGING ACCELERATION STATE OF A VEHICLE INTO CONSTANT-VELOCITY TRAVELING

摘要

PURPOSE: A transfer case having a brake and an electromagnetic synchronizer is provided to secure quiet and smooth operation of a vehicle by minimizing or removing noise caused by suddenly changing from acceleration state to constant-velocity traveling or vice versa. CONSTITUTION: A transfer case(16) having a brake and an electromagnetic synchronizer is composed of an input shaft(72); a main output shaft(90); a chain driving sprocket(160) disposed about the input shaft; a sub output shaft(172) having a driven chain sprocket(170); a chain(166) engaged with the sprockets; an inter-axle differential gear(100) having an input unit driven by the input shaft, a first output unit(130) connected to the main output shaft, and a second output unit(150) coupled to the chain driving sprocket; an armature(200) linked to the chain driving sprocket; a rotor(210) disposed near the armature and connected to the input shaft; and an armature coil(230) arranged near the rotor.