A power transmission unit of a single-acting plunger type includes a ball screw, a ball nut driven by the ball screw, and a plunger piston coupled to the ball nut. A block housing at least partially encloses the plunger piston and the ball screw. A plunger chamber is at least partially defined by the block housing and a face of the plunger piston. The plunger chamber is selectively pressurized by reciprocal motion of the plunger piston with respect to the block housing driven by longitudinal motion of the ball nut. An electric motor selectively drives the ball screw to responsively reciprocate the plunger piston within the plunger chamber. A motor housing at least partially encloses the ball nut, the electric motor, and the plunger piston. The motor housing includes a block lip which is crimped to the block housing to maintain the motor housing in relation to the block housing.

A control valve (12) for applying a spring-loaded brake pressure (p3b) to spring-loaded parts of a rear-axle wheel brake is provided. The control valve (12) is activatable pneumatically via a second control input (12b) with a parking-brake control pressure (p5). The parking-brake control pressure (p5) can act in such a manner on a control mechanism (14b, 15b, 17c, 22, 23, 24) arranged in a valve housing (12f) of the control valve (12) that a spring-loaded brake pressure (p3b) arises at a control output (12c) of the control valve (12) as a function of the parking-brake control pressure (p5) for bringing about a parking-brake braking specification with the spring-loaded parts of the rear-axle wheel brakes. The control valve (12) has a first control connection (12a) connectable to an adjustable first control chamber (14a), which is operatively connected to the control mechanism (14b, 15b, 17c, 22, 23, 24).

A device designed for controlling and regulating an electro-pneumatic parking brake circuit includes a manual controller configured to actuate a parking brake via the electro-pneumatic parking brake circuit, the manual controller having a first circuit arrangement and a second circuit arrangement, the first circuit arrangement being a digital, bidirectional circuit arrangement and the second circuit arrangement being an analog circuit arrangement. The device further includes control electronics electrically connected to the manual controller. The first circuit arrangement is connected to the control electronics via a first connection cable and the second circuit arrangement is connected to the control electronics via a second connection cable. The first connection cable is a digital data transmission channel configured to enable a digital data transmission between the digital circuit arrangement and the control electronics. The second connection cable is an analog data transmission channel configured to enable an analog data transmission.

A brake system may include an actuation device, in particular a brake pedal; a first piston-cylinder unit with two pistons, in particular an auxiliary piston and a second piston, in order to supply brake circuits with a pressure medium via a valve device, wherein one of the pistons, in particular the auxiliary piston, can be actuated by means of the actuation device; a second piston-cylinder unit comprising an electric motor-powered drive, a transmission, and at least one piston in order to supply pressure medium to at least one of the brake circuits via a valve device; and a motor pump unit with a valve device in order to supply pressure medium to the brake circuits. The brake system may further include a hydraulic travel simulator which is connected to a pressure or working chamber of the first piston-cylinder unit.

The disclosure relates to a brake control system for controlling a brake system of a vehicle. The brake control system comprises a first power supply interface, a second power supply interface, and at least one axle control unit being configured for controlling brake assemblies being associated with at least one axle. The first power supply interface is electrically connected to the axle control unit and the second power supply interface is electrically connected to the axle control unit. Moreover, a vehicle is presented which comprises at least one axle, a brake system having a left brake assembly and a right brake assembly for selectively braking an associated left wheel of the axle and an associated right wheel of the axle, and a brake control system. Furthermore, a method for operating a brake control system is explained.

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.

A braking apparatus of a vehicle including: a brake pedal position detector configured to detect a position of a brake pedal; a piston displacement detector configured to detect a displacement of a piston installed in a main master cylinder; a rear wheel circuit pressure detector configured to detect pressure supplied to a rear wheel circuit; a front wheel circuit pressure detector configured to detect pressure supplied to a front wheel circuit; a motor driver configured to drive a motor to move the piston; and a controller configured to receive the position of the brake pedal, the displacement of the piston, rear wheel circuit pressure and front wheel circuit pressure, determine a fail of a circuit isolation valve, and perform fail safe driving by operating the motor driver and a normal operating valve to supply pressure to only one of the rear wheel circuit and the front wheel circuit.

An automobile brake control method, a device, and an automobile. The method includes performing a real time monitoring for failure on an automobile brake system in real time; obtaining automobile working condition information when the automobile brake system is in a failure state; generating a failure determination result according to the automobile working condition information in the failure state; generating a reverse-dragging brake instruction corresponding to reverse-dragging brake condition and sending it to a motor controller, enabling the motor controller to perform the reverse-dragging brake according to the reverse-dragging brake instruction when determining the automobile working condition information after the failure of the brake system satisfies the reverse-dragging brake condition corresponding to the failure determination result. The method can control the motor to perform reverse-dragging brake when the brake system fails or the performance is reduced to a certain extent, so as to effectively improve the safety of the automobile.

An electronically controllable pneumatic brake system includes a service brake control module for controlling a first and a second service brake circuit, and a trailer control module with a trailer brake pressure connection point for connection to a trailer brake pressure coupling head. The trailer control module outputs a trailer brake pressure via the trailer brake pressure connection point. Upon a malfunction of the first and/or second service brake circuit, the first service brake pressure is controlled depending on the trailer brake pressure; and the second service brake pressure is controlled depending on the trailer brake pressure specified by the trailer control module; and/or the parking brake pressure is controlled directly or depending on the trailer brake pressure specified by the trailer control module. Upon a malfunction of the trailer control module, the trailer brake pressure is controlled depending on the first service brake pressure.