Abstract: The present invention relates to a braking device and to a braking system, each having a master brake cylinder (10) having at least one first pressure chamber (12) that is subdivided or is able to be subdivided at least into a first partial volume (12a) and a second partial volume (12b), which are hydraulically connectable or connected to a brake fluid reservoir (24), a first brake circuit (28) being hydraulically connectable or connected to the first partial volume (12a), and having a valve device (38) that is mechanically designed in such a way that a pressure buildup up to a mechanically specified limit pressure may be brought about in the second partial volume (12b), brake fluid being transferable at least into the first brake circuit (28) via at least one subcomponent (38a) of the valve device (38), and an exceeding of the limit pressure in the second partial volume (12b) being prevented.

Abstract: A method for checking a functional state of an automatic parking brake system having a control unit and an actuator configured to generate an electromagnetic braking force includes actuating the actuator, using the control unit, at a first frequency higher than a second frequency. The second frequency is able to cause a rotation of the actuator.

Abstract: A braking device and a braking system are provided, each having a master brake cylinder having at least one first pressure chamber that is subdivided or is able to be subdivided at least into a first partial volume and a second partial volume, which are hydraulically connectable or connected to a brake fluid reservoir, a first brake circuit being hydraulically connectable or connected to the first partial volume, and having a valve device that is mechanically designed in such a way that a pressure buildup up to a mechanically specified limit pressure may be brought about in the second partial volume, brake fluid being transferable at least into the first brake circuit via at least one subcomponent of the valve device, and an exceeding of the limit pressure in the second partial volume being prevented.

Abstract: A method for checking a functional state of an automatic parking brake system having a control unit and an actuator configured to generate an electromagnetic braking force includes actuating the actuator, using the control unit, at a first frequency higher than a second frequency. The second frequency is able to cause a rotation of the actuator.

Abstract: A protective device against corrosion for an onboard electrical system, in particular thermal corrosion. The protective device includes at least one sensor for detecting a shunt and a switching device which is controllable by the sensor and outputs a switching pulse for the activation of a control unit upon control by the sensor. Also described is a method for the control of the onboard electrical system.

Abstract: A method for securing an electrically operated parking brake, characterized by the following steps: monitoring an operating variable which is relevant for the proper functioning of the parking brake; ascertaining/determining whether the operating variable exceeds a predefined threshold value; and prompting the driver to carry out a certain action as a function of the value of the operating variable, the action including the engagement of the gear or the operation of the foot service brake. Also described is a control unit for carrying out the described method.

Abstract: In a method for carrying out an emergency braking procedure in a vehicle, at least one electric actuator in the braking system is automatically actuated to generate an increased brake force in the case of an emergency situation. A maximum voltage, which exceeds the rated voltage of the actuator, is applied to the electric actuator.

Abstract: A parking brake in a vehicle has one wheel-brake unit on each of two vehicle wheels, each having one DC brake motor for generating a clamping force which holds the vehicle at a standstill. The electric brake motors are controllable via a control unit, each brake motor being assigned one H-bridge and the H-bridges being interconnected in such a way that one shared half-bridge branch having switches for controlling both brake motors is formed.

Abstract: A method for securing an electrically operated parking brake, characterized by the following steps: monitoring an operating variable which is relevant for the proper functioning of the parking brake; ascertaining/determining whether the operating variable exceeds a predefined threshold value; and prompting the driver to carry out a certain action as a function of the value of the operating variable, the action including the engagement of the gear or the operation of the foot service brake. Also described is a control unit for carrying out the described method.

Abstract: A protective device against corrosion for an onboard electrical system, in particular thermal corrosion. The protective device includes at least one sensor for detecting a shunt and a switching device which is controllable by the sensor and outputs a switching pulse for the activation of a control unit upon control by the sensor. Also described is a method for the control of the onboard electrical system.