Hyundai Motor Company

Kia Motors Corporation

Dae Suk Jung

Soo Bo Park

Jong Min Kim

Un Koo Lee

A system and a method of controlling a motor-driven power steering are disclosed. A basic steering torque assist compensation is made according to a LOAM compensation logic under a steering condition such as steering of a steering wheel and holding of the steering wheel after steering, and an additional steering torque compensation is made to reduce the basic steering torque assist compensation amount when returning the steering wheel to the center or releasing the steering wheel in a restoring direction, thereby reducing steering effort felt by a driver when returning the steering wheel to the center or releasing the steering wheel in the restoring direction, and thus maintaining proper steering effort when a torque sensor of a high-performance vehicle fails.

System and method of controlling motor-driven power steering

A control method of an in-wheel motor vehicle includes: determining, by a controller, a state of a steering load that is a load of a steering system; maintaining, by the controller, a front wheel brake in a released state, when the state of the steering load is in a high load state of a predetermined level or more; determining, by the controller, a tire angle of a front wheel according to a driver steering input based on driver steering input information in the released state of the front wheel brake; determining, by the controller, a required tire rotational angle of the front wheel by using the determined tire angle of the front wheel; and reducing, by the controller, the steering load by driving an in-wheel motor of the front wheel for a compensation by the determined required tire rotational angle of the front wheel.

Control method of reducing a steering load of an in-wheel motor vehicle

A method of controlling braking when steering an in-wheel motor vehicle includes monitoring a required tire rotation angle for each steering angle and an actual tire rotation angle when performing cooperative control of an in-wheel motor for reducing a steering load, and generating a vehicle braking force in a case where the actual tire rotation angle exceeds the required tire rotation angle, thereby easily preventing a vehicle-skidding phenomenon.

Method of controlling braking when steering in-wheel motor vehicle

Disclosed is a steering apparatus of a vehicle in which a rack housing of a gear box may be accurately mounted on a vehicle body part without coming off, and when an angle difference of the vehicle body part is present, the angle difference may be compensated for when the rack housing is mounted. The steering apparatus has a mounting structure configured to fixedly mount the rack housing on the vehicle body part. The mounting structure includes a coupling part formed on the rack housing and having a coupling hole, a mounting part provided on the vehicle body part and having a mounting hole, a nut pipe installed at the mounting part and provided with an insertion part, a washer coupled to an outer circumference of the insertion part, and a bolt inserted into the coupling hole, the washer and the mounting hole and threadedly engaged with the nut pipe.

Steering apparatus of vehicle

A system for controlling turning of vehicle may include a steering angle detection sensor; a front inner wheel speed detection sensor detecting a front inner wheel speed; a front outer wheel speed detection sensor detecting a front outer wheel speed; a rear outer wheel speed detection sensor detecting a rear outer wheel speed based on a turning direction; and a braking controller receiving detection signal of the steering angle detection sensor to determine that the vehicle turns, estimating the rear inner wheel speed in the turning direction based on detection signals of the front inner wheel speed detection sensor and the front outer wheel speed detection sensor and detection signal of the rear outer wheel speed detection sensor, and executing a mode for decreasing the estimated speed as compared to the rear outer wheel speed, as a control mode for reducing a minimum rotation radius at the time of turning.

System and method for controlling turning of vehicle

A method for a steering control of a vehicle to improve steering restoration when the vehicle escapes from a turn path via acceleration during high-speed turning. The vehicle steering control method includes determining whether or not a vehicle is rapidly accelerating in a high-speed turning state, and providing a restoration compensation torque in a vehicle steering restoration direction using a steering motor when it is determined that the vehicle is rapidly accelerating in the high-speed turning state. In particular, the restoration compensation torque is determined based on a relationship of a steering torque, a wheel speed, a number of revolutions of an engine, and a steering angular speed of the vehicle.

Vehicle steering control method

A steering control method for a vehicle, may include determining, by a controller, whether or not a vehicle is in a high-speed turning driving condition based on factors reflecting a driving state of the vehicle; determining, by the controller, whether or not a rapid acceleration is occurring in the vehicle when the controller determines that the vehicle is in the high-speed turning driving condition; and providing, by the controller, restoration compensation torque to a steering restoration direction of the vehicle by use of a steering motor when the controller determines that the rapid acceleration is occurring.

Steering control method for vehicles

An apparatus and method for controlling an MDPS system may include an information detection device configured to detect information for steering assistance and pull-compensation control; an MDPS basic logic device configured to determine a steering-assist control value from the detected information; a state determination device configured wherein whether conditions corresponding to a non-steering state, a straight-driving state, a deceleration state, and a state in which pulling of the vehicle occurs are satisfied is determined based on the detected information; a compensation logic device configured wherein when the conditions are satisfied, a pull-compensation control value is determined from the detected information using stored configuration information and a control target value is determined using the steering-assist control value and the pull-compensation control value; and a motor control logic device configured to control an operation of a steering motor depending on the control target value.

Control apparatus and method of motor-driven power steering system

An apparatus and a method for controlling a rear wheel steering (RWS) system, may include determining, by a controller, whether an abnormality occurs in a rear wheel alignment based on information collected from the vehicle; determining, by the controller, a correction amount of the rear wheel alignment for correcting the abnormality occurring in the rear wheel alignment using predetermined data based on one or more of the information collected from the vehicle when the abnormality is determined to occur in the rear wheel alignment; correcting, by the controller, a rear wheel control position determined based on variable information related to an RWS control using the determined correction amount of the rear wheel alignment; and controlling, by the controller, an RWS actuator of the vehicle based on the corrected rear wheel control position, and an apparatus for controlling an RWS system.

Apparatus and method for controlling rear wheel steering system

A power steering pumping apparatus for a vehicle may include a driving motor, a power steering pump connected to a first side of a shaft of the driving motor, a compressor connected to a second side of the shaft of the driving motor, and a clutch disposed between the driving motor and the compressor and intermitting power between the driving motor and the compressor.

Power steering pumping apparatus for vehicle

An electric actuator-integrated electric power steering system may include an integrated motor which provides rotational force, a hydraulic pump connected to one end of the integrated motor and supplied with the rotational force from the integrated motor to pump working fluid that is used to transmit steering force, and an electric actuator connected to the other end of the integrated motor via a power controlling means. The electric actuator may operate when the rotational force is transmitted to the electric actuator and whether the rotational force from the integrated motor is transmitted to or cut off from the electric actuator may depend on an operation of the power controlling means.

Electric actuator-integrated electric power steering system and method of controlling the same

A device combining motor driven power steering with a compressor, may include a deceleration gearbox connected to a steering shaft, a motor selectively providing a steering force to the deceleration gearbox, a first electronic clutch mounted between the deceleration gearbox and a first shaft of the motor, and transmitting or discontinuing transmission of power from the motor to the deceleration gearbox, a power transmitting gear set transmitting power from the motor to a compressor, a second electronic clutch mounted between a second shaft of the motor and an input side of the power transmitting gear set, and transmitting or discontinuing transmission of power from the motor to the power transmitting gear set, and the compressor for an air conditioner, connected to an output side of the power transmitting gear set.

Growing community of inventors

Hoengcheon-myeon, South Korea

Dae Suk Jung