Brake control device, brake system and method for operating same
AssigneeContinental Automotive Technologies GmbH
InventorsThorsten Ullrich, Martin Baechle
Life of this patent
Estimating the term…
Abstract
An electrohydraulic brake control device for hydraulically actuable wheel brakes has an electrically activatable hydraulic pressure source, an inlet valve for each of the hydraulically actuable wheel brakes, an outlet valve for each of the hydraulically actuable wheel brakes and a pressure medium reservoir. For at least one of the hydraulically actuable wheel brakes, the brake control device has a pressure build-up wheel connection and a pressure release wheel connection. Also, a brake system for a motor vehicle having such a brake control device and a method for operating such a brake system are also disclosed.
Claims22
An electrohydraulic brake control device for hydraulically actuable wheel brakes comprising:
- an electrically activatable hydraulic pressure source,
- an inlet valve for each of the hydraulically actuable wheel brakes,
- an outlet valve for each of the hydraulically actuable wheel brakes,
- a pressure medium reservoir, and
- at least one pressure build-up wheel connection and at least one pressure release wheel connection for at least one of the hydraulically actuable wheel brakes.
A brake system for a motor vehicle having at least two hydraulically actuable wheel brakes comprising:
- an electrohydraulic brake control device,
- an electrically activatable hydraulic pressure source,
- an inlet valve for each hydraulically actuable wheel brake,
- an outlet valve for each hydraulically actuable wheel brake,
- a pressure medium reservoir,
- a first and a second hydraulic connecting element for each hydraulically actuable wheel brake, wherein the brake control device is connected to the hydraulically actuable wheel brake via the first and the second hydraulic connecting element.
(canceled)
A method for operating a brake system with a brake control device to carry out a purging cycle comprises:
- a) actuating an electrically activatable hydraulic pressure source in a brake actuation direction to displace pressure medium through an inlet valve through a hydraulically actuable wheel brake assigned to the inlet valve and through an outlet valve assigned to the hydraulically actuable wheel brake in a direction of a pressure medium reservoir, and subsequently
- b) actuating the electrically activatable hydraulic pressure source, in in a direction counter to the brake actuation direction to suction pressure medium out of the pressure medium reservoir into the electrically activatable hydraulic pressure source, and
- cyclically repeating steps a) and b).
Dependencies are inferred from the claim text.