A brake assembly includes a service brake assembly and an electromechanically actuable parking brake assembly. The electromechanically actuable parking brake assembly has a ball nut assembly comprising a ball screw and a ball nut. The ball screw and ball nut form a raceway for bearing members. The bearing members circulate within an internal path formed in the ball screw.

The present disclosure provides an actuator assembly comprising a ballnut having a helical track, an actuator drive unit (ADU) housing having an ADU track, and a ballscrew. In various embodiments, the ballscrew comprises a first translation bearing track, wherein the helical track and the first translation bearing track form a first translation bearing raceway in which a plurality of first translation bearing balls having a first diameter are disposed, and a second translation bearing track, wherein the helical track and the second translation bearing track form a second translation bearing raceway in which a plurality of second translation bearing balls having a second diameter are disposed, wherein the first diameter and the second diameter are not equal.

Motor vehicles and methods for operating motor vehicles are disclosed herein. An example motor vehicle includes an electric drive, an electrical brake including one or more braking actuators, a drive controller communicatively coupled to the electric drive and the electrical brake, and a brake controller communicatively coupled to the electrical brake. The drive controller is to cause the one or more braking actuators to actuate in response to a signal indicating a failure of the brake controller.

The present disclosure relates to a composite cable for a vehicle and a composite cable assembly, which are capable of simultaneously providing a communication function and power to an electronic parking brake (EPB) and an anti-lock brake system (ABS) for use in a vehicle, and maximizing electromagnetic compatibility (EMC) shielding performance between internal components or external cables.

A method of controlling an electromechanical brake system. The method comprises measuring a voltage of a motor, measuring a current of the motor, and estimating a position of a component of the electromechanical brake system based on the voltage and the current. The method comprises estimating a force imposed by the component based on the voltage and the current, and estimating a hydraulic pressure associated with a hydraulic brake system. In an apply operation, the force of the component is corrected based on the hydraulic pressure. In a release operation, the position of the component is corrected based on the hydraulic pressure.

A calliper for an electromechanical disc brake for a vehicle wheel. The calliper comprises a control unit configured to control the braking of the wheel, the control unit being intended to be electrically connected to a braking control line of the vehicle.

An electromechanical brake device has a brake caliper and a pressure piston mounted in the brake caliper such that it can move in a clamping direction, wherein the brake device has an electromechanical clamping device, wherein the clamping device is supported, on one side, on the pressure piston and is designed to apply to the pressure piston a force acting in the clamping direction. It is provided that the brake device has at least one hydraulically sealed, fluid-filled cavity, wherein the clamping device is supported, on the other side, indirectly on the brake caliper via the fluid-filled cavity, and wherein a pressure sensor is hydraulically connected to the fluid-filled cavity and is designed to calculate the fluid pressure inside the fluid-filled cavity.

A control method for moving an electromechanical parking brake, according to which method an actuator of the parking brake is moved by actuation by means of an actuator-control unit, wherein a writable, non-volatile memory unit is provided in which position data concerning the current actuator position of the actuator is stored so as to be readable and writable, and according to which method, when a write error occurs while writing the position data to the memory unit, the actuation of the actuator for moving said actuator is continued, and, when the write error is detected, a synchronization process is carried out independently of the actuation of the actuator so that, upon completion of this synchronization process, the position data stored in the memory unit correctly represents the actuator position of the actuator.

A method for controlling a parking brake for a vehicle, including: reading in a request signal which represents a requested activation of the parking brake, and travel data of the vehicle, wherein the parking brake has at least one spring mechanism and is assigned to at least one axle of the vehicle; and generating an activation signal, for activating the parking brake, using the request signal and the travel data, wherein the activation signal brings about pulsed activation of the parking brake for an adjustable time period, to control the parking brake. Also described are a related control apparatus, a parking brake apparatus, and a computer readable medium.