Abstract: A system and method for an electromechanically actuable parking brake for motor vehicles, which is embodied as a drum brake of the “duo-servo” type. The parking brake has a brake actuating device which can be actuated by an electromechanical actuator, is designed as an expander element and acts on two brake shoes, the expander element being supported via a spring energy storage device, may be designed as a diaphragm spring assembly, and being spreadable by a predetermined length of travel, when the parking brake is actuated, to apply an application force. In order to provide a sufficiently large hot parking travel, the length of travel travelled by the expander element to apply the application force when the parking brake is actuated can be moved as a function of at least one motor vehicle state parameter.

Abstract: The invention relates to a device and an operating method for an electronically controlled braking system having a friction brake, including friction linings for at least one wheel brake and having at least one electronic control device ESP+EPB?ECU. The aim of the invention is to provide an improved seat grinding device and an improved seat grinding process. The aim is achieved by proposing that an automated, electronically controlled or regulated routine is provided for seat grinding the friction partners of the friction brake, such that the automated seat grinding routine is fully executed after a release, particularly after entering a release code or after electronically connecting an interface of the electronic control device ESP+ESC?ECU of the braking system to a separate control device EST, and the results data of the seat grinding routine are stored in a memory area of the electronic control device ESP+ESC?ECU.

Abstract: The invention relates to a device and an operating method for an electronically controlled braking system having a friction brake, including friction linings for at least one wheel brake and having at least one electronic control device ESP+EPB?ECU. The aim of the invention is to provide an improved seat grinding device and an improved seat grinding process. The aim is achieved by proposing that an automated, electronically controlled or regulated routine is provided for seat grinding the friction partners of the friction brake, such that the automated seat grinding routine is fully executed after a release, particularly after entering a release code or after electronically connecting an interface of the electronic control device ESP+ESC?ECU of the braking system to a separate control device EST, and the results data of the seat grinding routine are stored in a memory area of the electronic control device ESP+ESC?ECU.

Abstract: A system and method for an electromechanically actuable parking brake for motor vehicles, which is embodied as a drum brake of the “duo-servo” type. The parking brake has a brake actuating device which can be actuated by an electromechanical actuator, is designed as an expander element and acts on two brake shoes, the expander element being supported via a spring energy storage device, may be designed as a diaphragm spring assembly, and being spreadable by a predetermined length of travel, when the parking brake is actuated, to apply an application force. In order to provide a sufficiently large hot parking travel, the length of travel travelled by the expander element to apply the application force when the parking brake is actuated can be moved as a function of at least one motor vehicle state parameter.

Abstract: Disclosed is a method for identifying hydraulic defects in electrohydraulic brake systems for motor vehicles including an electronic regulation and control unit, wheel brakes equipped with inlet and outlet valves, and at least one pressure source. Further disclosed is a device for implementing the method of the invention. According to the disclosed method, the individual causing defect is localized after a defect pattern is identified in order to operate the brake system in an operating mode which takes into account the individual causing defect.

Abstract: The present invention relates to an electrohydraulic brake system for motor vehicles of the ‘brake-by-wire’ type including a hydraulic pressure source that can be actuated by means of an electronic control unit and is comprised of a hydraulic pump driven by an electric motor and a high-pressure accumulator adapted to be recharged by the pump. Further, the invention relates to a method of monitoring an electrohydraulic brake system of the type mentioned hereinabove. To carry out a reliable detection of quantities of gas or air already when they enter the system, the invention discloses monitoring the suction side of the hydraulic pump. This is achieved in that the electric characteristic data of the electric motor driving the pump is analyzed so that any modification of the hydraulic delivery rate is detected.