Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Woo Cheol Cho

Soo Lim Han

Won Seok Choi

Jun Mo An

Young Kwan Ko

Kyu Beom Ko

Deok Keun Shin

Chang Yu Kim

Do Youn Jang

Seung Jae Yoo

In Seok Park

Hyo Jun Kwak

Kyung Han Min

Kyung Hyun Lee

Yoo Jung Han

A disconnector control device and method for an electric vehicle are provided. The disconnector control device includes a disconnector that switches wheel driving manners and a processor that recognizes a driving condition of the vehicle. The processor also acquires at least one factor related to operation of the disconnector and operates the disconnector based on the acquired at least one factor.

Apparatus and method for controlling disconnector of electric vehicle

A system for controlling anti jerk of an xEV vehicle using power of a motor, includes a battery configured to supply driving power to the motor, a battery control unit (BCU) configured to manage and control charging and discharging of the battery, and a motor control unit (MCU) configured to control driving of the motor, wherein the motor control unit is configured to execute a command for performing a method of controlling anti-jerk of an xEV vehicle.

Method and system for controlling anti-jerk of xEV vehicle

An apparatus for performing regenerative braking by controlling a disconnector of a vehicle includes a computing device to calculate a braking amount necessary for braking, a controller to engage or release the disconnector of the vehicle, based on the calculated braking amount, and a distributing device to distribute a regenerative braking amount necessary for braking into at least one motor included in the vehicle, when the disconnector is engaged or released.

Apparatus and method for performing regenerative braking by controlling disconnector of four-wheel drive vehicle

An apparatus and a method for controlling a vehicle includes a driveshaft that transmits a drive torque generated by a drive motor to a wheel, a sensor that obtains a speed of the vehicle, and a controller that monitors the drive torque to determine a change amount of the drive torque, determines a change in a torsion angle of the driveshaft based on the change amount of the drive torque, and determines whether wheel slip occurs based on an amount of speed change of the drive motor according to the change in the torsion angle of the driveshaft. Accordingly, it is possible to accurately determine wheel slip according to the friction of a road surface, providing safe driving to the driver.

Apparatus and method for controlling vehicle

A method of controlling anti-jerk of a vehicle, includes determining a correction factor based on a wheel slip amount of the vehicle, determining a corrected model speed from a predetermined model speed for a motor of the vehicle based on the correction factor and a motor speed of the vehicle from which a vibration component is removed, determining a vibration component based on the motor speed and the corrected model speed and generating an anti-jerk torque based on the determined vibration component, and generating a final output torque of the motor based on a driver demand torque of the vehicle and the generated anti-jerk torque.

Method and system for controlling anti-jerk of vehicle

A method of controlling vibration reduction of a vehicle is capable of efficiently reducing vibration occurring when entering a P range on a ramp. The method includes: when an input to a parking range is received, determining whether or not a predetermined condition for entering a vibration reduction control mode is satisfied; when the entering condition is satisfied, calculating a motor torque for reducing vibration due to backlash by using the driving information; controlling a driving motor so as to output the calculated motor torque; controlling the parking device such that the parking range is engaged; determining whether or not a brake is released; and if the brake is released, reducing a motor torque output by the driving motor so that vibration due to the backlash is reduced.

Method of controlling vibration reduction of vehicle

A method for reducing torsional shock of a driving system of an electric vehicle is provided. In the method, torsional torque of a part of the driving system is calculated by applying motor torque to a motor under the condition that a parking gear is engaged and monitoring a motor speed. Reverse torsional torque having the same magnitude as the calculated torsional torque is applied to the part of the driving system when release of the parking gear is requested, and then the parking gear is released to reduce shock caused by torsion of the part of the driving system when the parking gear is released.

Method for reducing torsional shock of driving system of electric vehicle

An apparatus for controlling a regenerative braking of a vehicle includes a sensor detecting information about forward driving environment, and a controller configured to: calculate an estimated time-to-collision between a forward vehicle and an ego vehicle when the forward vehicle is detected by the sensor, compare a first regenerative braking level determined based on the estimated time-to-collision with a second regenerative braking level determined based on distance information about the forward vehicle; determine a final regenerative braking level depending on the compared result; and control a regenerative braking drive based on the determined final regenerative braking level.

Apparatus and method for controlling regenerative braking of vehicle

A system and method of applying a coast regeneration torque of a vehicle are provided. The method corrects a magnitude of slip (or a slip ratio) which is considered when a coast regeneration torque is to be variably controlled while the vehicle is coasting.

System and method for applying coast regeneration torque of vehicle

A hybrid vehicle and a braking method thereof are provided. The braking method includes determining a current braking situation based on a brake depth and calculating an amount of braking demanded by a driver corresponding to the brake depth when the current braking situation is a general braking situation. A regenerative braking command is generated to execute regenerative braking and a friction braking command to execute friction braking based on the amount of braking demanded by the driver.

Hybrid vehicle and braking method thereof

A system a vehicle having a wheel-driving motor is disclosed. The system includes wheel speed sensors for detecting speed of respective vehicle wheels, and a controller for controlling coast regenerative torque of the vehicle. The controller lowers coast regenerative torque based on wheel speed acquired detected using the wheel speed sensors. The controller is lowers coast regenerative torque based on speed difference among the wheels and based on change of wheel slip ratio.

Apparatus and method for controlling vehicle having motor

A method of improving braking performance through motor torque control of a vehicle includes: determining a relation between a vehicle wheel torque change amount and a driving acceleration change amount prior to a start of braking of the vehicle; calculating a target acceleration that is changed according to a driver's braking request when a driver presses a brake pedal to start the braking of the vehicle; detecting a real acceleration of the vehicle in real-time; comparing the real acceleration with the target acceleration; and compensating for a difference between the real acceleration and the target acceleration by increasing a regenerative braking amount through motor torque control when the real acceleration differs from the target acceleration.

Method of improving braking performance through motor torque control of vehicle

An apparatus and a method of controlling creep driving of an electric vehicle are provided to improve driving convenience and fuel efficiency. The apparatus is applied to an electric vehicle to which a 'one-foot drive' mode is applied to execute the creep driving and actively determine whether the creep driving is provided based on a vehicle speed.

Apparatus and method of controlling creep driving of electric vehicle

The present disclosure provides an apparatus and a method for controlling a vibration of a driving motor in a vehicle by generating a vibration reduction torque using gains that correspond to a torque variation and an RPM of a driving motor. The method includes storing a gain table in which gain values that correspond to a torque variation and a revolution per minute (RPM) of a driving motor in a vehicle are recorded. The torque variation of the driving motor and the RPM of the driving motor are detected. The gain values are determined using the detected torque variation and RPM of the driving motor based on the gain table and reducing. In addition, a vibration of the driving motor is reduced based on the determined gain values.

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Daejeon, South Korea

Woo Cheol Cho