Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Okestro Co., Ltd

Seoul National University

Min Jun Kim

Sang Woo Hwang

Byung Rim Lee

Hyeon Seok Cho

Young Dae Park

Se Hyun Chang

Sehyun Chang

Youngil Sohn

Ho Yeong Yun

Young Gwang Kim

Jun Ho Seong

Yoo Jong Lee

Dong Eun Cha

Jin Young Yoon

Hyun Kyung Kim

Sang Hyeon Park

Byung Kyu Yoon

Seung Ryeol Lee

Yong Woo Jung

Hwi Sung Jung

Ju Hyun Kwon

Chan Jae Lee

Eon Yeon Jo

Young Il Sohn

Seong Jin Yim

Yong Hwan Jeong

Hyun Suk Jang

Woo Keun Park

A vehicle height control system includes an arm including a first end portion connected to a vehicle body and a second end portion coupled to a wheel, a bearing unit fixed to the vehicle body, a crank coupled to the bearing unit, a push rod including a first end portion connected to the crank and a second end portion connected to the arm, and a spring reaction force variable device coupled to the bearing unit and configured to vary reaction force applied to the crank.

Vehicle height control system

A vehicle-height control system of an independent corner module, includes a suspension link connected to a wheel and configured to be rotated according to upward-downward displace of the wheel, a gear unit connected to a vehicle body and a rotational center portion of the suspension link and configured to receive a rotation force from the suspension link, a control torsion bar, a first end portion thereof being connected to the gear unit and the second end portion thereof being connected to a torsion variation unit, the torsion variation unit applying a drive force to adjust a height of the control torsion bar and to maintain the adjusted height, and a controller connected to the torsion variation unit and adjusting the height of the control torsion bar.

Vehicle-height control system of independent corner module

A leaf spring suspension includes a knuckle having a wheel to be coupled thereto, a fixed frame positioned on a vehicle body and coupled to the knuckle through a trailing arm, a leaf spring having a first end portion coupled to the knuckle and having a second end portion having a variable support point, and a support unit configured to vary the support point on the second end portion of the leaf spring, wherein the support unit includes a spring support positioned to be brought into contact with the leaf spring, and a spring driver coupled to the spring support and configured to apply driving force to change the position of the spring support, and wherein the spring driver moves the position of the spring support to change the support point on the leaf spring.

Suspension having leaf spring

A virtual machine (VM) management method may involve simulating a change in deployment of VMs deployed on physical servers including a first physical server and a second physical server physically separated from the first physical server. Server workload prediction based on possible VM deployment may be used for scheduling deployment of VMs to obtain a satisfactory deployment of the VMs on the servers. This may involve classification of storage loads of the VMs, forming a prediction model for predicting prediction load based on storage loads in a classification, and selecting a prediction model for use in determining a target prediction load on a physical server as a result of target VM being analyzed.

Virtual machine management method based on prediction of virtual machine workload prediction for virtual machines deployed on servers and virtual machine management system implementing the same

An embodiment independent corner module includes a knuckle unit positioned on an inner side surface of a wheel, a steering unit disposed to face a strut coupled to the knuckle unit, the steering unit having a center shaft configured to be fixed to a vehicle body and configured to rotate about the center shaft, a guide rail configured to define a movement path through which the steering unit rotates and moves, and a rack steering unit positioned in the steering unit, fastened to the knuckle unit, and configured to apply rotating force to the knuckle unit in response to a movement in a longitudinal direction.

Independent corner module

A roll control system for a corner module of a vehicle includes a knuckle that is coupled to a strut, positioned inside a wheel, and movable in upward and downward directions, a stopper that selectively moves in a downward direction and limits a range that the knuckle moves in the upward and downward directions, a power transmission unit that transmits power for moving the stopper in the downward direction, a clutch connected to the power transmission unit for transmitting a rotational force to the power transmission as a control motor is driven, and a controller electrically connected to the control motor for transmitting a power transmission signal to the control motor to control the stopper to selectively move in the upward and downward directions.

Roll control system for corner module of vehicle

A suspension includes a knuckle to which a wheel of a vehicle is fastened, a steering drive portion connected to the knuckle, a lower arm positioned at a lower end portion of the steering drive portion and including a first end portion connected to the knuckle and a second end portion connected to a vehicle body frame, a connecting link including a first end portion connected to an upper end portion of the steering drive portion, an upper arm connected to a second end portion of the connecting link, a damper connecting the upper arm and the vehicle body frame, and a push rod including a first end portion connected to the upper arm and a second end portion connected to the lower arm.

Suspension apparatus for vehicle

A virtual machine placement system for placing a plurality of virtual machines on a first physical server and a second physical server in order to efficiently operate a physical server in which the plurality of virtual machines are installed is disclosed. The physical server includes the first physical server and the second physical server, the virtual machine placement system contains a workload calculation module, a prediction module, a temperature prediction module, a schedule module, and a migration module, wherein the schedule module calculates a placement schedule considering predicted temperature of the physical server.

Virtual machine placement system and virtual machine placement method for implementing prediction management of virtual machines considering performance degration of physical server

A virtual machine placement system for placing a plurality of virtual machines on a first physical server and a second physical server in order to efficiently operate a physical server in which the plurality of virtual machines are installed is provided. The physical server includes the first physical server and the second physical server. The virtual machine placement system includes a workload calculation module; a prediction module; a temperature prediction module; a schedule module; and a migration module. The schedule module calculates a placement schedule considering a predicted temperature of the physical server.

Virtual machine placement system and virtual machine placement method for implementing predictive migration of virtual machines considering hot spots

Provided is a virtual machine (VM) management method of simulating a change in deployment of VMs deployed on physical servers including a first physical server and a second physical server physically separated from the first physical server and scheduling deployment of VMs and predicting workload of VMs.

Virtual machine deployment method, virtual machine management method having the same and virtual machine management system implementing the same

The present disclosure discloses a preview vehicle height control system and a method of controlling the same. The system includes a monitoring device configured to detect the road surface condition of a driving path of a vehicle, an active suspension configured to adjust a vehicle height, a memory configured to store a plurality of data maps distinguished based on a type of bump, each data map having a vehicle dynamic characteristic as an input and a tuning factor as an output, and a controller configured to derive the tuning factor based on a data map, among the plurality of data maps of the memory, corresponding to the bump detected by the monitoring device, derive a target vehicle height in a form of a Gaussian distribution by substituting the tuning factor, and control the active suspension to follow the derived target vehicle height.

Preview vehicle height control system and method of controlling the same

A steering feel assisting apparatus of a steer-by-wire (SBW) system, may include a disk configured to rotate together with a steering shaft; a cam engaged to an actuator and configured to receive a rotational force of the actuator to be eccentrically rotated; and a brake arm configured to selectively friction-contact with an external peripheral surface of the disk to provide a predetermined frictional force in a forward rotation direction of the disk as the brake arm rotates in conjunction with rotation of the cam.

Steering feel assisting apparatus of steer-by-wire system

A clutch for preventing backdrive, includes a housing: a cover portion positioned on one end portion of the housing; an external shaft, at least one portion of which is positioned inside the housing, the other end portion thereof passing through the housing; a rocker positioned between the housing and the cover portion and fastened to the external shaft; an input shaft, one end portion thereof being inserted into an opening portion in the locker, and the other end portion thereof passing through the cover portion; and a gear portion positioned on the housing or the cover portion so that a serrated portion positioned on the locker is selectively brought into contact with the gear portion, wherein rotation of the rocker is restricted so that the external shaft is rotated along a rotation direction of the input shaft.

Clutch for preventing backdrive

An embodiment independent corner module includes a knuckle unit positioned at an inward area of a wheel, an upper arm fastened between an upper end of the knuckle unit and a vehicle body, a lower arm fastened between a lower end of the knuckle unit and the vehicle body, a steering unit configured to input a steering angle to the knuckle unit by being rotated with respect to the lower arm, and a rack steering unit positioned under the steering unit and fastened to the knuckle unit, the rack steering unit being configured to apply a rotating force to the knuckle unit by varying a length thereof.

A method for controlling switching of steering control rights of an autonomous vehicle, may include: performing a control to synchronize a steering angle of a steering wheel and a steering angle of a road wheel, when switching of the steering control rights from an automated driving mode to a manual driving mode is requested. The method further includes: detecting an error value between the steering angle of the steering wheel and the steering angle of the road wheel, when a hands-on state in which the steering wheel is gripped is detected in the synchronization process. In addition, the method further includes: performing a control to switch the mode of the autonomous vehicle to the manual driving mode, when the error value is less than a preset value.

Growing community of inventors

Busan, South Korea

Min Jun Kim