An electromechanical brake system includes: a pair of pad plates to which a brake pad is attached, respectively, to press a disc that rotates with a wheel; a carrier on which the pair of pad plates are installed; a caliper housing slidably installed on the carrier; a piston movably installed in forward and backward direction inside the caliper housing; a power transfer part configured to press the pair of pad plates onto the disc by moving the piston; a brake actuator including a drive motor configured to provide a rotational force of the drive motor to the piston, and a reduction gear part configured to decelerate the rotational force of the drive motor and transmit the decelerated rotational force to the power transfer part; a parking actuator connected to the brake actuator to maintain a parking braking state of a vehicle; a force sensor configured to detect a clamping force due to a contact between the disc and the brake pad; and a controller configured to control the brake actuator and the parking actuator, wherein the controller is configured to control the parking actuator based on the clamping force detected through the force sensor.

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 parking is released, and when the residual clamping force is present, release the residual clamping force through an additional parking release control.

The present invention relates to an electronic braked-integrated in-wheel motor driving device. According to one embodiment of the present invention, an apparently complicated driving device structure, which is formed due to the installation of a brake, can be avoided, and a product appearance of a wheel-chair, to which the in-wheel motor driving device is applied, can be simplified, whereby the driving device improves the visual appearance as well as the brake function and can thus enhance production competitiveness.

A remote operating lever unit (20) for operating a brake unit (10) mounted to an wheeled vehicle is provided a lever (22) for operation by a user, a main body (24) holding the lever (22) in a displaceable manner and including a control unit for transmitting a signal to the brake unit (10) based on a displacement amount of the lever (22) from a neutral position thereof, a holder (26) holding the main body (26), and a connecting portion (245, 265) detachably engaging the main body (24) and the holder (26) at an arbitrary angle around an axis (X) perpendicular to a plane in which the lever (22) displaces.

Brake control systems are disclosed herein. A brake control system comprises a first set of analog-to-digital converters in electrical communication with a first set of brake input mechanism sensors and a second set of analog-to-digital converters in electrical communication with a second set of brake input mechanism sensors. The first and second sets of analog-to-digital converters comprise one or more of different hardware and different software for differentially manipulating sensor outputs received from the brake input mechanism sensors.

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.

A brake device for a vehicle includes a fluid supply portion that supplies a fluid to a wheel cylinder utilizing the fluid in a reservoir and is configured such that a piston presses brake pads against a disc rotor to apply a braking force to a wheel. The brake device includes: a fluid level sensor configured to measure a value of a fluid level in the reservoir and a controller including one or more processors and configured to: estimate a wear amount of the brake pads based on a result of measurement by the fluid level sensor; estimate a heat generation amount of the brake pads based on the result of measurement; and determine whether a fluid leakage is occurring based on i) an amount of change in the fluid level that is based on the result of the measurement, ii) the wear amount, and iii) the heat generation amount.

An operating device for a vehicle brake system may include a control device and a piston-cylinder unit, at least one chamber of which may be connected to at least one wheel brake via at least one hydraulic line and a valve device that has at least normally open inlet valves or switching valves. The device may further include a pressure source that may be controlled to supply pressure medium to the at least one hydraulic line or to the at least one wheel brake. The control device may control pressure build-up via volume control and/or time control, using inlet valves. The interior or armature chamber of an inlet valve may be connected to a corresponding brake circuit via a hydraulic line, and a valve seat outlet may be connected to a corresponding wheel brake via a hydraulic line.

The present disclosure provides a motor router comprising: an annular body having a first coil guide; and a guide part formed to protrude from the body, and having a second coil guide to which the first coil guide is connected, and thus the present invention reduces the number of parts and has a simplified configuration, thereby providing an advantageous effect of reducing manufacturing processes and manufacturing costs.

A ball screw assembly having a ball screw nut including an outer surface, an inner surface defining a central bore, and a ball track defined by the inner surface, a ball screw shaft including an outer surface defining a ball track, the ball screw shaft being disposed in the central bore so that the two ball tracks form a ball raceway, a first stopper disposed at a first end of the ball screw nut within the ball raceway, a plurality of main balls forming a ball train disposed in the ball raceway, a main spring assembly disposed in the ball raceway between a first end of the ball train and the first stopper, and a strain sensing element affixed to a flat surface portion defined by the outer surface of the ball screw nut.