A brake system includes a first functional unit having at least one first hydraulic pressure generator, which is designed to build up a hydraulic pressure at a wheel brake, and a first hydraulic fluid reservoir, from which the first hydraulic pressure generator can draw in hydraulic fluid. The brake system furthermore comprises a second functional unit having at least one second, electric hydraulic pressure generator, which is controllable in order to build up a hydraulic pressure at the wheel brake, a check valve and at least one second hydraulic fluid reservoir, having an outlet, via which the second, electric hydraulic pressure generator can draw in hydraulic fluid, and an inlet, relative to which the check valve is arranged upstream in such a way that it has a blocking effect toward the inlet in respect of a flow direction.

According to at least one embodiment, the present disclosure provides a method for determining failure of a solenoid valve in a brake system, the method comprising: a first valve operation process of opening a backup valve that controls opening and closing of a flow path disposed between a master cylinder and a pedal cylinder and opening and closing a plurality of valves other than the backup valve in a preset manner; a first determination process of moving a piston disposed in a master cylinder to a preset first position and determining whether the backup valve is in a failure state using a pressure sensor; a second valve operation process of closing a mixing valve that controls opening and closing of a flow path disposed between a front wheel circuit and a rear wheel circuit, and opening and closing the plurality of valves other than the mixing valve in a preset manner; and a second determination process of moving the piston disposed in the master cylinder to a preset second position and determining whether the mixing valve is in a failure state using a pressure sensor.

A brake system for selectively actuating at least one wheel brake includes a reservoir and a power transmission unit for selectively providing pressurized hydraulic fluid for actuating at least a selected one of the wheel brakes during a braking event. A first electronic control unit at least partially controls at least one of the power transmission unit and a selected one of the pair of rear brake motors. A second electronic control unit at least partially controls at least one of the power transmission unit and an other one of the pair of rear brake motors. The first electronic control unit controls at least one SAP valve, an isolation valve, and a dump valve for a selected two of the wheel brakes, and the second electronic control unit controls at least one SAP valve, an isolation valve, and a dump valve for an other two of the wheel brakes.

A brake system for selectively actuating at least one of a pair of front wheel brakes and a pair of rear wheel brakes of a vehicle, one of which is hydraulically actuated and the other of which is electrically actuated, includes a reservoir. First and second integrated control units are in fluid communication with the reservoir and respective ones of the hydraulically actuated wheel brakes. The first and second integrated control units have first and second power transmission units connected to first and second electronic control unit, respectively. Each electronic control unit is configured to control a corresponding power transmission unit and a selected one of the electrically actuated wheel brakes on a contralateral side of the vehicle from the selected one of the hydraulically actuated wheel brakes which is actuated by the power transmission unit.

A vehicle braking control method. The method portion includes: when a vehicle is in a preset parking state, monitoring state signal of a vehicle system in real time, the vehicle system comprises a service brake system, a reversing assistance system, and a plurality of electronic parking brake systems; determining whether the vehicle meets a preset fault condition according to the state signals of the service brake system, the electric parking brake system and reversing assistance system; activating a non-faulty electronic parking brake system to control the vehicle to park if it is determined that the vehicle meets the preset fault condition. The present disclosure ensures the safety of a vehicle during low-speed remote parking when the vehicle is in a preset parking state, and solves the problem of potential safety hazards caused by having no matching control solution. Also provided are a corresponding device and a storage medium.

The present disclosure in at least one embodiment provides a brake apparatus for vehicle, comprising: a reservoir configured to store brake oil; a pump housing configured to support the reservoir; a hydraulic circuit provided within the pump housing and connected to a wheel brake of the vehicle; a primary brake unit including a primary brake motor provided on a first side of the pump housing and configured to supply a first hydraulic pressure to the wheel brake via the hydraulic circuit; and a secondary brake unit including a secondary brake motor provided on a first side of the pump housing and configured to supply a second hydraulic pressure to the wheel brake via the hydraulic circuit.

In order to determine a rotation angle signal of a DC machine precisely, reliably and in a simplified manner, a method is proposed, wherein combining of a current signal of the DC machine and a voltage signal of the DC machine is used to determine a combined signal; wherein conditioning of the combined signal is used to determine a conditioned signal; and wherein a rotation angle signal is determined by analysing signal oscillations of the conditioned signal.

An emergency braking method for aircraft, comprising using a progressing parking brake controlled by a lever (10) that can be actuated by the pilot between a “0%” position in which the brakes are connected to the return pressure of the aircraft, and a “100%” position in which the brakes are connected to the feed pressure of the aircraft, the lever being blockable in the 100% position in order to provide parking braking when the aircraft is stationary. According to the invention, the emergency braking method being characterized in that it comprises: using a valve having an outlet port connected to the brakes, a return port, and a feed port, the valve presenting a state connecting the outlet port to the return port and a state connecting the outlet port to the feed port; and controlling the valve to occupy one or other of those states by pulse width modulation (PWM) having a duty ratio (R) that is a function of the position of the lever in order to deliver the brakes with pressure lying in the range return pressure to feed pressure, depending on the position of the lever.

A system for automatically stopping an autonomous vehicle, in which the autonomous vehicle includes a primary brake and a secondary brake controlled by least one control module or different control modules. The system includes: an error detection module configured to detect an error in the control of the primary brake or the secondary brake by the one control module or the different control modules; and a supplemental control module configured, upon a detected error by the error module, to cause a stop of the autonomous vehicle using the primary brake or the secondary brake.

Provided is an electric brake device including one caliper including at least two electric mechanisms each configured to apply a braking force to a vehicle and to maintain the braking force. The at least two electric mechanisms are to be driven by one drive circuit output, that is, one output from one drive circuit. In this manner, for example, even when it is required to control a large number of electric mechanisms as in a case in which the electric brake device is applied to a twin-bore caliper, the number of drive circuits for driving the electric mechanisms can be reduced, thereby being capable of reducing cost.