Mando Corporation

Seung Gyu Hong

Sang Jin Ko

Jong Hak Jin

The present disclosure relates to an apparatus and a method for controlling an electric power steering motor, and the apparatus may include: a transceiver configured to receive information on a steering angle and information on an electric power steering motor and to transmit a control signal to the electric power steering motor; a motor operation determiner configured to recognize a rack stroke range and to determine whether a motor-limitation mode must be initiated or terminated based on the received information on the steering angle and electric power steering motor; and a motor control signal generator configured to generate a control signal corresponding to the determined initiation or termination of the motor-limitation mode.

Apparatus and method for controlling electric power steering motor

The present invention relates to an aid steering control apparatus comprising: a sensing unit configured to sense at least one of a steering angle and a pinion angle, and a rack force; a change amount calculating unit configured to calculate at least one of a steering angle change amount, which is a change of the steering angle, and a pinion angle change amount, which is a change of the pinion angle, and a rack force change amount, which is a change of the rack force; a first carrier calculating unit configured to calculate a first carrier that is a rack force change amount for the steering angle change amount or a rack force change amount for the pinion angle change amount; and a compensating unit configured to calculate a rack force maximum value and a rack force minimum value, which are rack forces of points where a sign of the first carrier is changed by determining the sign of the first carrier, and to compensate for a steering torque based on a difference between the rack force maximum value and the rack force minimum value, and the points.

Aid steering control apparatus

The present invention relates to an electronic control unit and a method for compensating for a torque steer. The electronic control unit includes: a driving torque calculation unit that calculates a drive shaft driving torque value, which is a torque value transmitted from an engine to a drive shaft; a torque steer degree calculation unit that calculates the actual driving torque value of a vehicle based on the drive shaft driving torque value, and calculates a torque steer degree by using the actual driving torque value; a compensation current calculation unit that calculates a torque steer compensation current value that compensates for the torque steer using the torque steer degree; a direction compensation unit that calculates a direction compensation current value according to a travelling direction of the vehicle; and a motor driving control unit that calculates a basic control current value using a steering angle and a steering torque value, calculates the final control current value by adding the torque steer compensation current value and the direction compensation current value to the basic control current value, and generates a control current according to the final control current value in order to supply the control current value to an electric motor.

Electronic control unit for compensating for torque steer

The present invention relates to a method and apparatus for controlling electric power steering. In particular, the present invention provides a power steering control method that includes: a breakdown detection step of detecting whether a torque sensor has broken down; an information reception step of receiving steering angle information and vehicle speed information in the case in which the torque sensor has broken down; a compensation target value calculation step of calculating a self-aligning torque, and a damping force, an inertial force, and a frictional force of an electric power steering apparatus by using one or more of the steering angle information and the vehicle speed information; and a current control step of calculating a steering assist force based on the compensation target value and controlling the supply of a motor control current that corresponds to the steering assist force, and an apparatus for the same.

Method and apparatus for controlling electric power steering

An electric power steering system including: a torque sensor; a steering angle sensor configured to detect a steering angle value of a steering wheel; a motor position sensor configured to detect a motor rotation angle value which is a rotated angle of a driving shaft of an electric motor; and an electronic control unit configured, when the torque sensor is normal, to generate a first steering assist current for controlling a driving force of the electric motor using the steering torque value, and when the torque sensor fails, to estimate a target motor angular velocity of the electric motor using the steering angle value and the motor rotation angle value and to generate a second steering assist current so as to cause a current motor angular velocity of the electric motor to converge to the target motor angular velocity.

Growing community of inventors

Bucheon-si, South Korea

Seung Gyu Hong