The present embodiments relate to a brake control unit and a method for operating a motor vehicle brake using such a brake control unit. A brake control unit comprises at least one printed circuit board having an electronic circuit arrangement. A first set of electrical power supply connections of at least of a first type and second type are associated with a first vehicle electrical system and form a first power supply path. A second set of electrical power supply connections of at least of a first type and second type are associated with a second vehicle electrical system and form a second power supply path. A common output power supply connection is formed from outputs of the polarity reversal protection circuit for each power supply path brought together at a connection node at which a supply voltage can be provided in operation.

A brake system may include: a first motor providing a driving force to a first electronic parking brake; a first drive circuit and a second drive circuit each independently connected to the first motor, and driving the first motor; a first switch circuit connected between the first motor and the first drive circuit; a second switch circuit connected between the first motor and the second drive circuit; a first micro controller unit electrically connected to the first drive circuit; and a second micro controller unit electrically connected to the second drive circuit.

A braking device for a vehicle with increased operating safety and to a method for operating a braking device for a vehicle with increased operating safety is described. The proposed braking device comprises a container with a cavity, a hydraulic block and an electronic brake control device that is configured to control the pressure supply device. The brake control device is arranged in the container. Furthermore, at least one sensor element that is designed to detect a fluid is provided.

A brake system may include a brake module provided in each wheel of a vehicle, and a controller configured to perform braking control on the brake module in response to a pedal displacement signal corresponding to a movement of a brake pedal, in which the controller includes a processor configured to output a braking control signal for the brake module, and a circuit protection module configured to stabilize power supplied to the controller and remove noise, in which the circuit protection module includes at least one capacitor group including a plurality of capacitors connected to one another in parallel, and at least one circuit-breaking unit connected to the capacitor group and configured to control electrical connection of the capacitor group on the basis of a change in temperature when a failure of at least one of the plurality of capacitors is identified.

A redundant power supply system delivers the power required by an electro-mechanical braking system. This is achieved through at least two independent power supply circuits, each containing energy storage device modules, e.g. batteries, which are supplied from the vehicle's board network. Additionally, a partitioning of the energy storage device modules in each supply path is provided, such that in case of failure in one or two of the energy storage device modules there is still adequate power to supply the braking system as well as other safety critical components.