Abstract: The disclosure relates to a motor parameter measuring device and method. According to the disclosure, a motor parameter measuring device comprises a torque receiver receiving a motor torque of a motor rotated by an external force, a motor constant calculator calculating a motor constant based on the motor torque, and a parameter calculator controlling an inverter connected with the motor to form a closed circuit and calculating a parameter of the motor based on a current generated by the rotating motor in the closed circuit.

Abstract: An electric power steering device and method are disclosed. An electric power steering device according to an embodiment of the present invention comprises: a steering motor comprising a first winding and a second winding, each of Which receives applied three-phase power; a first control unit for controlling power supplied to the first winding; and a second control unit for controlling power supplied to the second winding, wherein, when one of a phase of the first winding and a phase of the second winding has failed to be opened, the control unit controlling the winding including the phase that has failed to be opened, among the first control unit and the second control unit, performs torque compensation control for additional output of compensation torque.

Abstract: A brake driving apparatus includes a hydraulic valve block including a vent channel for discharging air to the outside, an electronic control device that includes an electrical component housing open in a direction of the vent channel of the hydraulic valve block and having a ventilation hole connected to an internal space and a filter attached to the electrical component housing to block the ventilation hole so that air can pass therethrough, and is supported by one side of the hydraulic valve block, and a vent sealing member that seals a space between the hydraulic valve block and the electronic control device and surrounds the vent channel, the ventilation hole, and the filter.

Abstract: Disclosed are a parking actuator and an electromechanical brake including the same. The parking actuator, which is connected to a brake actuator that performs braking of a vehicle, includes a parking gear connected to the brake actuator to be rotatable together, a parking lever having one side hingedly fixed and the other side engaged with the parking gear, a parking motor provided to generate power, a power conversion unit including a spindle member rotating by receiving a rotational driving force of the parking motor and a nut member screwed to the spindle member to move forward or backward, and a pressing unit installed on the nut member to press the parking lever by the nut member moved forward or backward.

Abstract: The present disclosure relates to a valve block for a hydraulic brake system.

Abstract: The embodiments of the present disclosure relate to a steering control device and method of a vehicle, specifically, may provide a steering control device and method of a vehicle capable of securing the driving stability by controlling the alignment of the vehicle wheels by rapidly detecting a misalignment between the steering angle of the steering wheel and the steering angle of the vehicle wheel.

Abstract: The present invention relates to electric bicycle speed control device and method. According to the present invention, a torque of a motor for driving a wheel is controlled so that a speed of a pedal driven by a user follows a speed of the wheel, and a torque of the pedal is also controlled by applying an assist level according to the torque of the motor. Therefore, even in an electric bicycle with a chain, it is possible to feel a feeling of the pedal like a bicycle with a chain, and it is possible to adjust the force applied to the pedal according to the assist level.

Abstract: The embodiments of the present disclosure relate to a torque compensating device and method. Specifically, the torque compensating device according to the present disclosure may include a compensation torque amount calculator for calculating a compensation torque amount by performing band pass filtering on a frequency corresponding to a vehicle speed of a host vehicle, an inverse compensation torque generator for generating an inverse compensation torque if it is determined that judder and shimmy of a steering wheel have occurred based on the compensation torque amount, and a controller configured to control the generation of the inverse compensation torque to be stopped by determining to be a temporary kickback if the compensation torque amount is calculated to be less than or equal to a first reference value.

Abstract: The present disclosure relates to a double wound motor and a control method therefor, and comprises: a first inverter and a second inverter for supplying phase currents respectively to a first winding unit and a second winding unit of the double wound motor; a gate driver for driving switches respectively included in the first inverter and second inverter and detecting whether there is a switch abnormality in the first inverter or second inverter and whether there is a winding abnormality in the first winding unit and second winding unit; and a motor control unit for outputting a current command to attenuate a torque ripple in response to a torque ripple pattern according to the switch or winding abnormality.

Abstract: Disclosed is an electric steering column, and the electric steering column includes: a telescopic motor; a telescopic screw unit having one side connected to the telescopic motor, and reciprocating linearly while being rotated by a driving force provided by the telescopic motor; a tube bracket provided on a tube surrounding the column shaft and connected to the other side of the telescopic screw unit; and a positioning member provided in the tube bracket to which the other side of the telescopic screw unit is coupled, and for adjusting the position of the other side of the telescopic screw unit so that the center of the telescopic motor and the central axis of the telescopic screw unit are positioned on a virtual straight line.

Abstract: A vehicle includes a navigation device, and a controller electrically connected to the navigation device, wherein the controller is configured to determine a first speed of the vehicle based on a main line speed limit of a road on which the vehicle is traveling, wherein the main line speed limit is included in navigation information output by the navigation device, determine a second speed for decelerating the vehicle to a predetermined speed when the vehicle is positioned at a target point of a curved lane based on an arc length from a branching point of the road to the curved lane, which is determined based on the predetermined speed and a predetermined allowable maximum deceleration amount in the curved lane in route information included in the navigation information and the navigation information, and determine the first speed or the second speed as a control target speed of the vehicle at the branching point.

Abstract: The present invention relates to a master cylinder arrangement for a brake system, comprising a tandem master cylinder including a master cylinder housing, a first master piston movably arranged in the master cylinder housing, a second master piston movably arranged in the master cylinder housing, a balancing piston movably arranged in the second master piston, and an elastic pedal feel element. The invention further relates to a hydraulic system for a brake system as well as a brake system.

Abstract: The present embodiments relate to a steering control device and method and may provide a steering control device and method capable of compensating for the effect on the increased friction level of the road wheel actuator (RWA) mechanism at a low temperature in a steer by wire (SBW) system. In particular, there may be provided a steering control device and method capable for compensating for heavy steering that the driver may feel at low temperature by determining a friction level at a low temperature while driving according to a preset compensation condition and compensating for rack force information with respect to the friction level.

Abstract: In the present disclosure, the method and apparatus for controlling an electronic power steering system include estimating a vehicle's rack force value when the vehicle's cumulative driving distance is greater than or equal to a reference driving distance, comparing the estimated rack force value with learning data, increasing the number of friction detections when the estimated rack force value is greater than the learning data, and outputting an alarm when the number of friction detections is greater than or equal to a critical number, and it may be applied to other exemplary embodiments.

Abstract: A brake system comprises a reservoir; a brake pedal; a master cylinder including a first master chamber, a second master chamber, a first master piston, and a second master piston; a first hydraulic circuit including at least one first hydraulic wheel brake; a second hydraulic circuit including at least one second hydraulic wheel brake; and a hydraulic pressure supplier including an actuator for pressurizing the first hydraulic circuit and the second hydraulic circuit depending on an operation of the brake pedal in a normal operating mode. The master cylinder further comprises a locking chamber and an elastic pedal feel element arranged in the first master chamber to be in contact with the first master piston and the second master piston for generating a pedal force when the brake pedal is operated while the second master piston is locked in the normal operating mode.

Abstract: Disclosed herein an electronic brake system includes a first block comprising a master cylinder having a first master piston connected to a brake pedal and a first master chamber whose volume is changed by a displacement of the first master piston; a second block comprising a pedal simulator, a hydraulic pressure supply device that generates a hydraulic pressure by operating a hydraulic piston according to an electrical signal, and a hydraulic control unit comprising a first hydraulic circuit that controls a hydraulic pressure transferred to two wheel cylinders and a second hydraulic circuit that controls a hydraulic pressure transferred to the other two wheel cylinders, the second block disposed to be spaced apart from the first block; a plurality of electronic control units (ECUs) that controls various devices and valves based on hydraulic pressure information and displacement information of the brake pedal; and a connection line having one end connected to the first block and the other end connected to the

Abstract: The disclosure relates to a steering system and a method for controlling the same. According to an embodiment, a steering system comprises an electric power steering (EPS) steering motor connected to a first inverter and a second inverter, an additional motor connected to the second inverter and providing a steering-related additional function, a main electric control unit (ECU) including the first inverter and controlling the EPS steering motor through the first inverter, and a sub ECU including the second inverter and controlling at least one of the EPS steering motor or the additional motor based on at least one of main ECU state information or vehicle driving state information.

Abstract: According to embodiments, there may be provided a rack-driven steering device, comprising a ball nut coupled with a ball screw via balls and rotating to slide the ball screw, a ball nut gear provided on an outer circumferential surface of the ball nut, a motor gear provided on a shaft of a motor providing driving force to the ball nut and disposed in parallel with the ball screw, and a middle gear coupled between the ball nut gear and the motor gear and transferring the driving force from the motor.

Abstract: According to a steering column for a vehicle according to the present embodiments, a wide convenient space can be secured for a driver in a teles-in state by increasing a teles-stroke while securing an installation space for the steering column, the installation of the steering column is spatially convenient despite the increased teles-stroke, and a teles operation can be quickly performed without increasing the output of a motor, and thus a convenient space can be quickly secured for a driver without degraded noise performance.

Abstract: The present embodiments may provide a steer-by-wire type steering apparatus which can significantly reduce production cost by reducing the number of components and simplifying the assembly procedure, by eliminating a pinion gear, etc., and sensing the position of a sliding bar on the basis of rotation information detected from a gear box which transfers the rotational force of a motor to the sliding bar.