Hyundai Motor Company

Kia Motors Corporation

Yong-Sung Jang

Kil-Young Youn

Young-Un Kim

Hee-Ra Lee

Myung-Gyu Kim

Woo-Hyung Seol

Jae-Won Ha

Ji-Yeon Kim

A keyless rotation transfer unit may include a spline forming a pulley coupling force between an inner circumference of a shaft hole of a pulley and an outer circumference of a keyless shaft end forming one end of a shaft, with the keyless shaft end inserted into the shaft hole, and a flange nut screw-fastened to the keyless shaft end coming out of the shaft hole and forming a screw fastening force to press one surface of the pulley. In particular, the screw fastening force forms a shaft fastening force that causes a bearing to pressurize the other surface of the pulley, the bearing is coupled to the keyless shaft end and located at the rear of the pulley, and the flange nut forms a pulley holding force using the screw fastening force and the shaft fastening force.

Keyless rotation transfer unit and hybrid starter and generator

A method for controlling a hybrid starter and generator (HSG) is applied to an eco-friendly vehicle. The method includes HSG torque-output limiting control, and in particular, the HSG torque-output limiting control is divided into an HSG regeneration mode and an HSG driving mode in which output limitation of the HSG 3 is performed after torque limitation of the HSG 3. Furthermore, the HSG regeneration mode includes: a former regenerative torque output control in which an engine RPM is converted by a controller 10 into regenerative torque output of the HSG 3 for about 1 second when an engine starts idling to charge a battery, and a latter regenerative torque output control in which the engine RPM is converted into the regenerative torque output of the HSG 3 after 1 second to about five seconds to continue to charge the battery, and an HSG driving mode.

Method for controlling hybrid starter and generator for improving fuel efficiency and eco-friendly vehicle

Growing community of inventors

Hwaseong-si, South Korea

Yong-Sung Jang