Mando William USPTO patentsUtility application

An electronic parking brake system including: an electronic parking brake 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 a motor configured to rotate the spindle member; and a controller electrically connected to the motor and configured to perform a parking operation for the EPB, wherein the controller is configured to detect an inrush current flowing through the motor during the parking operation, and identify a low voltage fault based on the detected inrush current.

Disclosed herein a sensor module for a brake system.

An electronic parking brake system including: an electronic parking brake (EPB) including a piston that moves by a hydraulic pressure to press brake pads onto a brake disc, a cylinder in which the piston is provided movably forward and backward, and an EPB actuator that moves the piston by a motor to press the brake pads onto the brake disc; a pressure sensor configured to detect a hydraulic pressure of the cylinder; an electronic stability control (ESC) actuator configured to generate and supply a hydraulic pressure to the cylinder; and a controller configured to control the EPB actuator and the ESC actuator, wherein the controller is configured to detect an actual hydraulic pressure of the cylinder through the pressure sensor in an EPB disengagement, and when the detected actual hydraulic pressure is higher than a required hydraulic pressure, control the EPB actuator to start an EPB disengagement control.

An electro-mechanical brake and a vehicle including the same are provided.

A steer by wire type steering apparatus according to the embodiments of the present disclosure comprises an output shaft provided with fixing grooves on both sides, a moving member which moves in the axial direction when the output shaft is rotated and is provided with a guide portion protruding in the radial direction on an outer circumferential surface, a pair of guide stoppers for guiding the axial movement of the moving member, an elastic ring for elastically supporting the guide stoppers in a radial direction, and housing.

According to the present embodiments, it is possible to enhance the driver's steering feel by limiting the maximum steering angle of the steering wheel and easily change the maximum steering angle of the steering wheel in real-time or with a minimum structure change as necessary.

An electro-mechanical brake and a vehicle including the same are provided.

An electronic brake system includes: a master cylinder connected to a brake pedal; a hydraulic pressure supply device including a motor that generates a rotational force and a hydraulic piston movably accommodated in a pressure chamber, and configured to generate a hydraulic pressure by a movement of the hydraulic piston; a hydraulic control unit configured to control a flow of the hydraulic pressure transferred to a wheel cylinder from the hydraulic pressure supply device; a hydraulic block in which the master cylinder, the hydraulic pressure supply device and the hydraulic control unit are integrated; and a controller configured to control the motor and the hydraulic control unit, wherein, during an anti-lock braking system (ABS) operation, the controller is configured to generate vibration in the motor by supplying the motor with an excitation current for exciting the motor to notify a driver of the ABS operation by vibration of the brake pedal.

Disclosed herein an electric parking brake.

The embodiments of the present disclosure relate to an EMI filter device.

Disclosed is an actuator for a brake device.

The present embodiments relates to a steering control device and method of a vehicle and may provide a steering control device and method for a vehicle, which may secure stably steered driving by controlling the output of the steering motor by changing the average steering ratio when the driver causes urgent steering in a failure situation and adjusting the rack stroke and rack speed.

Provided is an electronic parking brake (EPB) system including an actuator of an EPB operated by a motor, the EPB system including: a motor driving unit configured to drive the motor; and a controller electrically connected to the motor driving unit, wherein the controller is configured to: in response to a parking switch being in an activated state, determine whether an engine is in an off state; upon determining that the engine is in the off state and operation information of the EPB is parking apply information corresponding to a parking apply mode (Apply), determine whether a rolling of the vehicle occurs based on a wheel pulse; upon determining that the rolling of the vehicle occurs, determine whether the rolling corresponds to a driver's steering intention based on external collision information and a steering angle; and upon determining that the rolling corresponds to the driver's steering intention, control the motor driving unit not to re-clamp the EPB.

The disclosure relates to a motor control device and method and comprises a calculator calculating friction control information for controlling friction of a steering device based on vehicle state information including information regarding a state of a vehicle and preset system friction information and a controller performing either friction decrease control to control to reduce the friction of the steering device or friction increase control to control to increase the friction of the steering device, based on the friction control information.

An electronic parking brake system including: an electronic parking brake (EPB) including a piston provided to press a pair of brake pads disposed on opposite sides of a brake disk rotating together with a wheel of a vehicle, a nut member provided to press the piston, a spindle member provided to move the nut member, and an electric motor provided to rotate the spindle member, and a controller electrically connected to the electric motor, wherein the controller identifies whether a requested parking operation is an initial parking operation, estimates a motor temperature depending on a voltage drop amount of the electric motor in the case of not being the initial parking operation, estimates a clamping force required for parking depending on the motor temperature, and ends the parking operation when the clamping force reaches a target clamping force.

According to the present embodiments, a telescopic stroke is increased while an installation space of a steering column is easily secured, and a telescopic operation can be quickly performed without increasing a motor output.

Provided is an electro-mechanical brake system and a method of operating the same including: a pair of pad plates disposed on both sides of a disk rotating together with a wheel; a piston configured to allow the pad plates to come in close contact with or to be separated from the disk; a first motor and a second motor configured to operate independently from each other and provide the piston with power; a first gear configured to decelerate power of the first motor and transmit the decelerated power; a second gear configured to convert power of the second motor into a translational motion and apply pressure to or release pressure on the piston while in contact with the piston, the second gear including a guide part slantly formed on a portion that comes in contact with the piston; and a connecting part connecting the first gear and the second gear to each other to allow the first gear and the second gear to rotate together with each other, the connecting part configured to couple the first gear and the second gear such that the second gear is slidable with respect to the first gear.