Armrest apparatus and various rotating angles for vehicle and method for controlling operation thereof

An armrest apparatus for a vehicle comprising:

• a lower arm located on a side surface of a seat and configured to rotate with respect to the seat by power of a lower arm motor;
• and
• an upper arm extending along a lengthwise direction of the lower arm and configured to rotate with respect to the lower arm by power of an upper arm motor,
• wherein the lower arm motor is coupled to a motor bracket which is fixedly coupled to a side surface of a seat frame,
• wherein the lower arm rotates with respect to the seat on a side surface of the seat when a first motor shaft of the lower arm motor, which is coupled to the lower arm, rotates,
• wherein the upper arm motor is coupled to the lower arm,
• wherein a second motor shaft of the upper arm motor is coupled to the upper arm such that the upper arm rotates with respect to the lower arm when the second motor shaft rotates, and
• wherein the upper arm motor is coupled to the lower arm disposed in an empty space inside the lower arm so as to be prevented from being exposed to outside.