Abstract: The present discrete relate to an automobile steering apparatus and, more specifically, to an automobile steering apparatus that is capable of preventing or reducing the consumption of engine power and reducing the number of components, and further capable of enhancing convenience for drivers by using functions for controlling the automobile, such as automatic parking, lane keeping, driving assistance according to road conditions, steering vibration attenuation, autonomous driving control, and the like, and in turn, is advantageous to the strength of worm wheels by causing pressure applied thereto to be distributed and provides drivers with enhanced steering feel.

Abstract: The embodiments of the present disclosure relate to a motor control device and method, more particularly, a motor control device and method capable of improving an uncomfortable feeling in motor control by minimizing the control stop time by classifying the operation in the transition period of a control right to another motor control device according to a failure type, in the case of a failure of the motor control device having the control right in the motor control system of the redundancy structure.

Abstract: Disclosed is a brake apparatus capable of minimizing the stress of valves. The brake apparatus comprises: a first wheel cylinder provided in a first wheel; a second wheel cylinder provided in a second wheel; a first outlet valve for controlling discharge of brake oil from the first wheel cylinder; a second outlet valve for controlling discharge of the brake oil from the second wheel cylinder; and a controller which opens and then closes one of the first and second outlet valves in response to a first braking command generated when a brake pedal deviates from a standard position, and opens and then closes the other outlet valve of the first and second outlet valves in response to a first brake suspending command generated when the brake pedal is restored to the standard position.

Abstract: Provided is an apparatus for sensing a displacement of a brake pedal, the apparatus including: a shaft extending parallel to a movement direction of a piston of a master cylinder displaced by an operation of the brake pedal; a magnet supported by the shaft; a mounting member configured to couple the piston and the shaft; and a sensor configured to detect a change in magnetic force by the magnet, wherein the shaft and the magnet are accommodated in a shaft bore formed through or formed to be recessed in a hydraulic block including a plurality of passages and valves which control flow of a pressing medium, and the shaft bore communicates with a cylinder bore formed in the hydraulic block and receiving the piston.

Abstract: A protection device for an electric power steering (EPS) system may include a first comparator for comparing a high voltage potential of a power supply of an electric power steering system with a threshold high voltage, a second comparator for comparing the high voltage potential of the power supply with a threshold low voltage, an exclusive switching unit for outputting an enable signal or a disable signal according to whether a first comparison output signal of the first comparator and a second comparison output signal of the second comparator are the same, and a battery cutoff device for switching a voltage supply of the power supply to an electronic control unit of the electric power steering system according to the enable signal or the disable signal.

Abstract: In a method and apparatus for estimating a cornering stiffness of a tire and detecting a road surface condition according to the present disclosure, the tire cornering stiffness can be estimated based on information obtainable from a vehicle and a simple model without using a separate sensor or a complex vehicle dynamics model for estimating cornering stiffness, and the road surface condition can be detected using a tire cornering stiffness estimation value based on information obtainable from the vehicle without using a separate sensor for estimating the road surface condition.

Abstract: A vehicle control apparatus includes: a sensor configured to sense a current value and a voltage value applied to a motor of an actuator of an electronic parking brake (EPB) device; a controller configured to: estimate a speed value of the motor based on the sensed current value and the sensed voltage value; calculate a moving distance value of a spindle of the actuator based on the estimated speed value of the motor; estimate a position value of the spindle based on the calculated moving distance value of the spindle; estimate an EPB clamping force that acts on a brake disc of the EPB device based on the estimated position value of the spindle; calculate an EPB clamping force error compensation value between the estimated EPB clamping force value and a measured EPB clamping force value; and transmit, to the EPB device, a parking force compensation command on which the calculated EPB clamping force error compensation value is reflected to compensate for a parking force of the EPB device.

Abstract: An electronic parking brake system includes an electronic parking brake (EPB) including a pair of brake pads disposed on both sides of a brake disc rotating with a rear wheel of a vehicle, a piston provided to press the pair of brake pads, a nut member provided to press the piston, a spindle member provided to move the nut member, and an electric motor configured to rotate the spindle member; a wheel speed sensor configured to detect a wheel speed of the rear wheel; a G sensor configured to detect a longitudinal acceleration of the vehicle; an accelerator pedal sensor configured to detect an operation of an accelerator pedal of the vehicle; an EPB switch configured to receive a parking apply command or a parking release command from a driver; and a controller configured to control the electric motor, wherein the controller is configured to determine whether a residual clamping force is present in the EPB based on a rear wheel speed or the longitudinal acceleration at a time of departure of the vehicle after p

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: Provided is an electronic brake system including: a reservoir in which a pressurizing medium is stored; a master cylinder configured to discharge the pressurizing medium according to a pedal effort of a brake pedal; a hydraulic pressure supply device configured to operate a hydraulic piston according to an electrical signal output in response to a displacement of the brake pedal to generate a hydraulic pressure; a hydraulic control unit connected to the hydraulic pressure supply device and configured to control a flow of the hydraulic pressure transferred to a wheel cylinder; a pedal simulator connected to the master cylinder and configured to provide a reaction force for the brake pedal; a simulator valve configured to open and close a flow path connecting the master cylinder and the pedal simulator; a cut valve configured to open and close a flow path connecting the master cylinder and the hydraulic control unit; a pedal displacement sensor configured to detect displacement information of the brake pedal; a

Abstract: The electromechanical brake includes a piston provided to press a brake pad, a power conversion unit including a spindle, and a nut connected to the spindle to move forward or backward by rotation of the spindle in a first direction or a second direction to move the piston forward and backward, a position adjusting unit including an adjusting screw provided on the outside of the nut to rotate together with the nut, a first screw thread formed on an outer circumferential surface of the adjusting screw, a second screw thread formed on an inner circumferential surface of the piston to be engaged with the first screw thread, and an adjuster provided between the spindle and the nut to rotate the nut and the adjusting screw by rotation of the spindle to move a relative position of the piston with respect to the power conversion unit forward or backward.

Abstract: The present embodiments may provide a steer-by-wire steering device that may enhance the driver's driving feel and increase the driver's steering stability and convenience in manual driving mode and autonomous driving mode by stopping the steering wheel from further mechanical rotation when the wheel rotation reaches a maximum point.

Abstract: Disclosed herein is a master cylinder. The master cylinder according to the present embodiment includes a hydraulic block provided with a main bore formed therein in an axial direction, a first piston having one side inserted into the main bore to be displaceable and the other side exposed to an outside of the hydraulic block and connected to a brake pedal, a mounting block provided with a sub bore formed therein in the axial direction and the sub bore where the first piston is inserted thereinto to be displaceable and passes therethrough and a connection port connecting the sub bore and a reservoir, a cap provided on one side of the first piston, and a gap flow path formed by a gap between the first piston and the cap so that a first liquid pressure chamber partitioned by the first piston communicates with the connection port on the main bore.

Abstract: A piston system configured for use in a brake system is disclosed. The piston system can include: a piston that moves within a caliper during braking operations; and an articulating joint located between the piston and a brake pad, wherein the braking force passes through the articulating joint during a braking operation. Different types of articulating joints are also described.

Abstract: The present disclosure is direction to a stopper disposed in a driver for a steering apparatus which includes a worm gear, a bearing supporting rotation of the worm gear, and a damper buffering an impact of the bearing is provided, the stopper including: an annular body having a through hole therein allowing one side of the worm gear to pass through; and a leg on the annular body to protrude toward the damper along an axial direction of the worm gear.

Abstract: A steer-by-wire system can be controlled using a hypothetical or virtual model of a conventional automotive steering system such as an electric power steering (EPS) system in which a steering wheel is mechanically linked to one or more road wheels. The model of the EPS system may be implemented in algorithms or instructions of software. In order to reconstruct driving feedback similar to the conventional steering system in the steer-by-wire system, the steer-by wire system may use the model of the EPS system. For example, a controller of the steer-by-wire system controls an angular velocity of a steering feedback actuator of the steer-by-wire system operably connected with the steering wheel so as to provide a steering feedback to a driver or operator using the model of the EPS system.

Abstract: Disclosed herein is a piston for a brake. The piston for a brake according to the present embodiment includes a body made of a synthetic resin, the body having both ends communicating with each other and both sides hollowed in a cup shape, and a footing made of metal provided from one end side of the body to one side of the inside of the body to prevent external force from being applied directly to the body by a spindle and a brake pad.

Abstract: The caliper brake includes a brake disc configured to rotate with a wheel, an inner brake pad and an outer brake pad each disposed at one of two sides of the brake disc, a press member configured to press the inner brake pad toward the brake disc, and a caliper housing provided so that the press member is movable forward and backward, wherein the brake disc includes a hub connected to an axle, a rubber provided to come into contact with the brake pad and disposed to be spaced a predetermined distance from the hub in an axial direction, and an accommodation part formed between an inner surface of the hub and an outer surface of the rubber to accommodate at least a part of the outer brake pad.

Abstract: The invention concerns a floating brake caliper for a vehicle disc brake, the brake caliper comprising a first portion that is arrangeable adjacent to a first side face of a brake disc of the vehicle disc brake and that is configured to receive a brake piston, a second portion that is arrangeable adjacent to a second side face of the brake disc wherein the second portion is configured to rest against a rear face of a brake pad of the vehicle disc brake, and wherein the second portion has a plate-shaped section that is configured to cover a geometric centre of the rear face of the brake pad and to cover at least half of the surface of the rear face of the brake pad and the invention also concerns a toll and method for surface machining of a brake caliper.

Abstract: Disclosed herein is a caliper brake including a disk that rotates together with a wheel, a pair of pad plates disposed on both sides of the disk, respectively, and a carrier that is fixed to a vehicle body and accommodates the pair of pad plates therein, wherein the pair of pad plates include protrusions protruding from both side ends thereof, and the carrier includes a slide groove that is recessed from the inner surface to the outer side thereof so that the protrusions are inserted and supported, and is recessed to be inclined in a reciprocating direction so that the pair of pad plates are slidable diagonally.