A solenoid valve apparatus for a brake system for a vehicle, including: a main valve unit; a pilot-control valve unit that is fluidically connected to the main valve unit; and a housing to accommodate at least the main valve unit and the pilot-control valve unit; in which the pilot-control valve unit includes a double solenoid unit and at least one valve device, in which the double solenoid unit is formed such that it can be populated with at least one valve device, and in which the double solenoid unit has at least two accommodating portions for accommodating valve devices and at least two solenoid devices for actuating valve devices. Also described are a related braking system and a related method for mounting a solenoid valve assembly for a braking system for a vehicle.

In a solenoid valve for a hydraulic braking system, a valve body has a receiving region which at least partially accommodates a guide assembly, the valve armature running axially through at least one through-opening of the guide assembly. A mechanical detent device is formed between the guide assembly and the valve armature, the detent device releasing the valve armature when the latter is in a de-energised closed position, such that the restoring spring drives the valve armature and pushes the closing element sealingly into the valve seat to produce a sealing function, and said detent device fixes the valve armature in a de-energised open position against the force of the restoring spring in an axial detent position, such that the closing element is raised from the valve seat.

To acquire a hydraulic pressure control unit and a straddle-type vehicle brake system capable of adding an auxiliary plunger pump while suppressing extreme enlargement of the hydraulic pressure control unit.

In a base body, a combination of a first plunger pump and a first accumulator and a combination of a second plunger pump and a second accumulator for a different system of a hydraulic circuit therefrom are separately provided on both sides of a reference surface including a center axis of a motor hole. A first plunger pump hole and a second plunger pump hole are separately provided on a second surface and a third surface constituting both ends of the base body in a first direction. A first accumulator hole, a second accumulator hole, and an auxiliary plunger pump hole are provided on a fourth surface constituting an end of the base body in a second direction.

A control valve for applying a spring-loaded brake pressure to spring-loaded parts of a rear-axle wheel brake is pneumatically activated as a function of a parking-brake braking demand and a service-brake braking demand. A first control chamber is connected via a first control piston to a control arrangement in the control valve. During an adjustment of the first control chamber via the service-brake control pressure, the spring-loaded brake pressure at the working output is a function of the service-brake control pressure or of the parking-brake control pressure. The first control piston is connected to a third control chamber, wherein the pressure in the first control chamber acts on the first control piston in one direction, and the pressure in the third control chamber acts on the first control piston in the opposite direction. The first control chamber is selectively connectable to the third control chamber via a switchable bypass valve.

A device for controlling a solenoid valve that controls the through-flow of a medium in a closed-loop manner includes a control procedure implemented by the device. The control procedure is configured at least in regions as a ramp function. The ramp starts with a ramp start current intensity that is less than an opening start current intensity of the valve at which the valve starts to open. The ramp ends with a ramp end current intensity that is greater than an opening end current intensity at which the valve is fully open. The device is configured to one or more of determine and adjust an amount of the ramp start current intensity in dependence upon a pressure. The amount determined and/or adjusted takes into consideration a pressure of the medium against which the solenoid valve opens.

A simulator valve and an electronic brake system using the same are disclosed. The electronic brake system includes a master cylinder provided with at least one cylinder chamber having a volume changeable according to operation of a pedal, a pedal simulator connected to the cylinder chamber, configured to provide reaction force corresponding to a pedal effort of the pedal, a hydraulic-pressure supply device configured to provide hydraulic pressure to at least one wheel cylinder, an electronic control unit (ECU) configured to operate the hydraulic-pressure supply device, and a simulator valve provided in a flow passage through which the master cylinder is connected to the pedal simulator, and provided with a unidirectional flow passage that allows fluid to flow from the pedal simulator to the cylinder chamber and a bidirectional flow passage that is electronically opened or closed.

A brake system includes first and second wheel brakes, a reservoir, and a brake pedal unit having a housing and a pair of output pistons slidably disposed in the housing. The output pistons generate brake actuating pressure during a manual push-through mode for actuating the first and second wheel brakes. The system further includes a plunger assembly having a housing having a motor driving an actuator, and a piston connected to the actuator. The piston pressurizes a chamber when the piston is moving in a first direction to provide fluid flow out of a first port and through a pair of parallel valves. The piston pressurizes a second chamber when the piston is moving in a second direction opposite the first direction to provide fluid flow out of a second port. The first and second ports are selectively in fluid communication with the wheel brakes.

An ECP overlay system for a Russian distributor valve includes a manifold body having a pipe bracket face configured to engage a face of a pipe bracket of a brake system, a valve face configured to engage a face of a main portion of a Russian distributor valve of a brake system, and an electric manifold face. The system further including an electric manifold assembly engaged with the electric manifold face of the manifold body, with the electric manifold assembly having a pneumatic mode where the electric manifold assembly is configured to allow pneumatic-only control of a brake cylinder of brake system and an ECP mode where the electric manifold assembly is configured to allow electronic control of a brake cylinder of a brake system.

A brake system for a motor vehicle, wherein the brake system is divided into two blocks, wherein a separate electric pressure generator is arranged in each block, and a motor vehicle having such a brake system.

In a hydraulic brake system, which includes: a hydraulic pump which is driven by an electric motor and has the purpose of generating a fluid volume flow for the hydraulic brake system; and a solenoid valve for controlling the fluid volume flow from the hydraulic pump to a wheel brake, a method includes actuating the solenoid valve in such a way that by this means a fluid pulsation at the wheel brake is counteracted. Furthermore, the method may be implemented in a corresponding device.