A method for filling a brake system of a vehicle. A filling installation is connected to the brake system and a control device of the brake system is activated. The control device monitors a pressure signal of a pressure sensor of the brake system in order to detect a filling operation carried out by the filling installation, wherein in response to detecting a start of the filling operation, valves of the brake system are activated by the control device and in response to detecting an end of the filling operation, the valves are deactivated by the control device.

A method of operating a vehicle brake system having multiple wheel brakes includes providing a plunger assembly having a plunger and a chamber fluidly connected to at least one of the wheel brakes. An evacuation of at least one of the wheel brakes is performed by moving the plunger relative to the chamber under control of an electronic control unit (ECU) to generate a vacuum from the chamber to the at least one wheel brake. Pressurized brake fluid is supplied from a reservoir to the evacuated wheel brakes by moving the plunger relative to the chamber under control of the ECU once all the wheel brakes are evacuated.

A brake fluid reservoir (1) comprising a receptacle (2), adapted to contain brake fluid, said receptacle (2) forming a bottom wall (3) and a perimetric wall (4), wherein the bottom wall (3) and the perimetric wall (4) define an inner compartment (5) for containing the brake fluid, wherein the perimetric wall (4) defines an inlet opening (6) opposite to the bottom wall (3) communicating with the inner compartment (5), and the bottom wall (3) defines an outlet opening (7) communicating with the inner compartment (5) and fluidically connectable to a braking system; a cap (8) configured to close the inlet opening (6); wherein the receptacle (2) defines an auxiliary opening (9), distinct from the inlet opening (6) and the outlet opening (7), communicating with the inner compartment (5); and wherein the reservoir (1) comprises a valve (10) positioned in the auxiliary opening (9), said valve (10) being configured to regulate a flow of brake fluid through the auxiliary opening (9).

A bleeder system having a check valve selectively enables or inhibits fluid communication. A first tube provides fluid communication between the check valve and a bleeder valve of a hydraulic system. A fluid recovery reservoir receives at least one of air and hydraulic fluid, with a second tube connected between the check valve and the fluid recovery reservoir to provide fluid communication between the check valve and the fluid recovery reservoir. A vacuum pump selectively draws a vacuum, with a third tube connected between the vacuum pump and the fluid recovery reservoir to provide the vacuum from the vacuum pump to the fluid recovery reservoir. A power source provides power to the vacuum pump.

A hydraulic braking system has a vacuum brake booster, an ESC system with a hydraulic pump for generating braking force in a wheel-specific manner in a plurality of wheel brakes, an ESC control device for driving the hydraulic pump and a hydraulic pressure sensor for determining a hydraulic pressure in the hydraulic braking system. For electrified vehicles, an electric vacuum pump is provided for supplying the vacuum brake booster, wherein the ESC control device is designed to drive the electric vacuum pump logically and electrically.

A method for controlling a brake system in the case of leaks is provided. The brake system has a mechanically actuable master brake cylinder, which is connected to a first partial reservoir of a brake fluid vessel, and has an electric linear actuator, which is connected to a second partial reservoir of the brake fluid vessel. The master brake cylinder and the linear actuator are connected via an electrically closable circuit isolating valve. In order to protect the brake fluid, in the event of a leak during a transition to a standby state, the linear actuator is activated to take a brake fluid volume out of the first partial reservoir via the open circuit isolating valve and to displace it into the second partial reservoir.

The invention relates to a device for filling an assembly of a non-vacuum-resistant system with a service fluid. The problem addressed by the invention is that of providing a device by means of which such non-vacuum-resistant systems can be filled air-free by means of vacuum pressure filling and can be closed. Said problem is solved in that the device has a vacuum chamber (1) for holding at least one assembly (3) to be filled, wherein: in the interior of the vacuum chamber (1), a rotary device (4) for supporting and moving at least one holding unit (5) for an assembly (3) to be filled is disposed in the lower region; the at least one holding unit (5) is assembled from at least two separate segments (51; 52), which, in the assembled position, form a common free available space (53) in their interior, the inner contour of said available space being congruent to the outer contour of the assembly (3) to be filled; in one segment (52) of the holding unit (5), an additional free available space (54) is formed above the outer contour of the assembly (3) to be filled; in the interior of the vacuum chamber (1), a screwing tool (7) for a closure element (8) of the assembly (3) to be filled and a filling unit (6) are disposed above the holding unit (5); the portions of the screwing tool (7) and of the filling unit (6) which are to be operatively connected to the assembly (3) to be filled can each be moved into the additional free available space (54) of the holding unit (5) above the outer contour of the assembly (3) to be filled.

In order to detect air in a brake master cylinder within a hydraulic power brake system, a brake master cylinder pressure on actuation of the brake master cylinder is compared with a comparison pressure which prevails in the brake master cylinder when it is air-free. For bleeding, brake fluid is conveyed with a power brake pressure generator through the in this case non-actuated brake master cylinder into a pressureless brake fluid reservoir, where air escapes from the brake fluid.

The invention relates to a device for pressure testing, evacuation, and/or filling of a non-vacuum-resistant or non-pressure-resistant assembly by means of vacuum pressure filling or vacuum volume filling, the device comprising a vacuum chamber for accommodating the assembly to be filled and an adapter for filling the assembly to be filled. The problem of the invention is that of providing a respective device which has a compact design with small volumes to enable short evacuation and ventilation times. At the same time, consumption of auxiliary gas is to be kept to a minimum and good handling for an automation system is to be achieved. The problem is solved by releasably assembling the vacuum chamber of the device from a first and a second housing component, specific designs being proposed for these components.

A hydraulic system for a brake release device has a pump device, a tank, a valve assembly and at least one working port, where the working port is connectable to the tank or the pump device via the valve assembly. The pump device is switchable between an operating mode and a shutdown mode, where the valve assembly connects the working port to the tank in the shutdown mode and the valve assembly is only hydraulically operable. A brake release device having such a hydraulic system is also disclosed.