Piston-cylinder device and method for conducting a hydraulic fluid under pressure to an actuating device, actuating device for a vehicle brake system, and a method for actuating an actuating device
AssigneeIpgate AG
InventorHeinz Leiber
Life of this patent
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Abstract
The invention relates to a piston-cylinder device for conducting a hydraulic fluid under pressure to an actuating arrangement, in particular a brake system, having at least one piston which delimits a pressure chamber, which is connected to the actuating arrangement via a hydraulic line. Provision is made according to the invention that the hydraulic fluid is conducted to the pressure chamber under pressure by means of an additional arrangement.
Claims23
A piston-cylinder device for delivering a hydraulic fluid under pressure to an actuating arrangement of a brake system, the device having:
- at least one piston configured to delimit a pressure chamber;
- a hydraulic line configured to connect the pressure chamber to the actuating arrangement;
- and
- an additional arrangement configured to supply hydraulic fluid under pressure to the pressure chamber.
An actuating device for a vehicle brake system having:
- a first piston-cylinder unit including at least one working chamber configured to be connected, via at least one hydraulic line in which a valve arrangement is activated, to at least one wheel brake having associated inlet and outlet valves;
- a servo unit;
- an actuating arrangement including a brake pedal;
- and
- a transmission arrangement or other hydraulic piston-cylinder unit arranged coaxially with respect to the first piston-cylinder unit,
- wherein the transmission arrangement or other hydraulic piston-cylinder unit is configured to be actuated by the actuating arrangement, and
- wherein the first piston-cylinder unit is configured to be actuated by means of the servo unit to supply hydraulic fluid to a brake circuit.
A method for conducting a hydraulic fluid under pressure to an actuating arrangement of a brake system, including intermittently delivering hydraulic fluid to a pressure chamber of a piston-cylinder unit, by means of an additional arrangement.
A method for actuating an actuating device for a vehicle brake system having an actuating arrangement, a servo unit and a master cylinder, the method including delivering hydraulic fluid from at least one brake circuit to a reservoir and from said reservoir back into the brake circuit via at least one line leading from a reservoir to the master cylinder in which a control valve is arranged, by means of wherein said delivering includes actuating a master cylinder piston.
Dependencies are inferred from the claim text.