Abstract: Disclosure is an underbody for a vehicle. The underbody includes side members formed long at opposite lateral portions of a vehicle body in a longitudinal direction of the vehicle body, and hollow cross members formed long in a transverse direction of the vehicle body, and integrally connected to the two side members.

Abstract: Disclosed are a charger and a method of charging an electric vehicle. A main body of the charger includes a plurality of sub main bodies coupled to each other to transform its shape. The charger with the main body having a first shape moves toward the electric vehicle, and is then transformed to have a second shape. The first shape refers to a shape allowing the main body to be movable on a ground, and the second shape refers to a shape making the main body occupy a smaller surrounding area of the electric vehicle than the first shape. The electric vehicle is charged as connected to the charger having the second shape. The charger does not obstruct traffic of other vehicles because its size is reduced during charging.

Abstract: Disclosed are a charger and a method of charging an electric vehicle. A main body of the charger includes a plurality of sub main bodies coupled to each other to transform its shape. The charger with the main body having a first shape moves toward the electric vehicle, and is then transformed to have a second shape. The first shape refers to a shape allowing the main body to be movable on a ground, and the second shape refers to a shape making the main body occupy a smaller surrounding area of the electric vehicle than the first shape. The electric vehicle is charged as connected to the charger having the second shape. The charger does not obstruct traffic of other vehicles because its size is reduced during charging.

Abstract: Disclosed is a method of connecting to an online service, in which first authentication information is received from a terminal, at least one service available to the terminal is detected by using the first authentication information, and an automatic logging into the detected at least one service is performed.

Abstract: A method of sharing a wireless data service, including receiving, by a first terminal, a wireless data service share request from a second terminal, checking, by the first terminal, available wireless data service remaining amount information, and transmitting, by the first terminal, a response to the wireless data service share request to the second terminal based on the checked wireless data service remaining amount information. Another such sharing method includes requesting, by a second terminal, wireless data service remaining amount information available by a first terminal from the first terminal, transmitting, by the second terminal, a wireless data service share request to the first terminal based on the wireless data service remaining amount information received from the first terminal, and receiving, by the second terminal, a response to the wireless data service share request from the first terminal.

Abstract: A method of connecting to an online service where a terminal transmits information regarding a selected online service and first authentication information to an external device, receives second authentication information detected based on the transmitted information, from the external device, and is then logged into the selected online service based on the received second authentication information.

Abstract: A method of connecting to an online service where a terminal transmits information regarding a selected online service and first authentication information to an external device, receives second authentication information detected based on the transmitted information, from the external device, and is then logged into the selected online service based on the received second authentication information.

Abstract: A method of sharing a wireless data service, including receiving, by a first terminal, a wireless data service share request from a second terminal, checking, by the first terminal, available wireless data service remaining amount information, and transmitting, by the first terminal, a response to the wireless data service share request to the second terminal based on the checked wireless data service remaining amount information. Another such sharing method includes requesting, by a second terminal, wireless data service remaining amount information available by a first terminal from the first terminal, transmitting, by the second terminal, a wireless data service share request to the first terminal based on the wireless data service remaining amount information received from the first terminal, and receiving, by the second terminal, a response to the wireless data service share request from the first terminal.