公开(公告)号：US20240391440A1

公开(公告)日：2024-11-28

申请号：US18793414

申请日：2024-08-02

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER

IPC: B60T13/68 ,  B60T13/14

Abstract: A brake system for a vehicle has at least two hydraulic brake circuits, each with at least one hydraulically acting wheel brake, and a switching valve on each hydraulically acting wheel brake, which switching valve connects in each case one hydraulically acting wheel brake to one of the two brake circuits. The brake system also has a central outlet switching valve which brings about a switchable hydraulic connection between at least one of the brake circuits and a reservoir vessel, wherein the reduction in pressure in the at least one hydraulically acting wheel brake is effected by opening the central outlet switching valve and the associated switching valve.

公开(公告)号：US20240149853A1

公开(公告)日：2024-05-09

申请号：US18411652

申请日：2024-01-12

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER

IPC: B60T13/74 ,  B60T7/04 ,  B60T8/32 ,  B60T8/40 ,  B60T13/68 ,  B60T15/02

CPC classification number: B60T13/745 ,  B60T7/042 ,  B60T8/326 ,  B60T8/4081 ,  B60T8/4086 ,  B60T13/686 ,  B60T13/741 ,  B60T15/028 ,  B60Y2400/306 ,  B60Y2400/81

Abstract: A brake system for motor vehicles may include an actuation device (e.g., brake pedal), a first piston-cylinder unit having at least one piston that separates two working chambers, a control device and a pressure supply unit driven by an electric motor and having a double-stroke piston delimiting working chambers. At least one brake circuit may have associated therewith at least one wheel brake, and each wheel brake may be connected to an associated hydraulic connecting line via a controllable switching valve. An outlet valve may be assigned to a single wheel brake or to a single wheel brake of each brake circuit in a hydraulic connection between the wheel brake and a pressure medium storage container.

公开(公告)号：US20230391306A1

公开(公告)日：2023-12-07

申请号：US18235567

申请日：2023-08-18

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER

IPC: B60T13/74 ,  B60T7/04 ,  B60T8/40 ,  B60T13/68 ,  B60T8/32 ,  B60T15/02

CPC classification number: B60T13/745 ,  B60T7/042 ,  B60T8/4081 ,  B60T13/686 ,  B60T8/326 ,  B60T8/4086 ,  B60T15/028 ,  B60T13/741 ,  B60Y2400/306 ,  B60Y2400/81

Abstract: A brake system for motor vehicles may include an actuation device (e.g., brake pedal), a first piston-cylinder unit having at least one piston that separates two working chambers, a control device and a pressure supply unit driven by an electric motor and having a double-stroke piston delimiting working chambers. At least one brake circuit may have associated therewith at least one wheel brake, and each wheel brake may be connected to an associated hydraulic connecting line via a controllable switching valve. An outlet valve may be assigned to a single wheel brake or to a single wheel brake of each brake circuit in a hydraulic connection between the wheel brake and a pressure medium storage container.

公开(公告)号：US20220289161A1

公开(公告)日：2022-09-15

申请号：US17638255

申请日：2020-08-20

Applicant: IPGATE AG

Inventor： Thomas LEIBER

IPC: B60T13/74 ,  B60T7/04 ,  B60T13/68 ,  B60T8/40 ,  B60T13/14

Abstract: A brake device for a motor vehicle with two axles in which at least one axle has an electric traction motor for driving and braking at least one wheel arranged on an axle, and in which energy can be recovered by means of the traction motor during braking, each wheel having a wheel brake. The brake device includes a pressure supply having an electric motor-driven pump in the form of a piston-cylinder unit or a rotary pump, which can both build up pressure and reduce pressure, and which is part of a pressure supply device. An open-loop and closed-loop control device controls the traction motor and components of the pressure supply device such that a braking deceleration can be set by closed-loop control individually for each brake circuit, each axle or wheel brakes of an axle, with different braking torques at the respective axles or wheel brakes of an axle.

公开(公告)号：US20220144231A1

公开(公告)日：2022-05-12

申请号：US17429403

申请日：2019-07-10

Applicant: IPGATE AG

Inventor： Thomas LEIBER ,  Heinz LEIBER ,  Anton VAN ZANTEN

IPC: B60T8/40

Abstract: Apparatus for generating braking force in a vehicle brake system has at least two pressure supply devices and first and second hydraulic brake circuits, each having at least one or two hydraulic wheel brakes. Pressure in at least one brake circuit can be both built up and released by the pressure supply devices, which include a piston pump or gear pump driven by an electric motor drive and deliver continuous volume. At least one valve arrangement may adjust wheel brake pressures individually and/or disconnect/connect the wheel brakes from/to a brake circuit and/or a pressure supply device. At least one electronic control unit enables open-loop and closed-loop control. Pressure increase is enabled in one or both brake circuits, independently or in combination, using first and/or second pressure supply devices that produce changes in pressure simultaneously or temporally offset or overlapping.

公开(公告)号：US20220136531A1

公开(公告)日：2022-05-05

申请号：US17429620

申请日：2020-02-12

Applicant: IPGATE AG

Inventor： Thomas LEIBER ,  Heinz LEIBER

IPC: F15B11/17 ,  F15B11/22 ,  F15B13/06 ,  F15B13/02

Abstract: A hydraulic system includes at least two hydraulic circuits with hydraulic circuit lines and at least one hydraulic component connected to each hydraulic circuit or to a hydraulic circuit line thereof via a respective switch valve used for pressure build-up and release. At least one pressure supply device can build up pressure in both hydraulic circuits. At least one circuit separating valve blocks or releases a hydraulic connection line connecting the two hydraulic circuits. At least one outlet valve selectively connects an accumulator container to at least one hydraulic circuit. A hydraulic connection between a pump of the pressure supply device and a respective hydraulic circuit connects a return flow from the hydraulic circuit into the pressure supply device or its pump. A controlled feed valve or a non-return valve controls the hydraulic connection. A pressure supply device or outlet valve releases pressure in at least one hydraulic component.

公开(公告)号：US20220105914A1

公开(公告)日：2022-04-07

申请号：US17429562

申请日：2020-02-12

Applicant: IPGATE AG

Inventor： Thomas LEIBER ,  Heinz LEIBER

IPC: B60T13/14 ,  B60T7/04 ,  B60T13/66 ,  B60T13/68 ,  B60T13/74

Abstract: An actuating device for an entirely or partially hydraulic vehicle braking system includes a master brake cylinder with a piston and a working chamber hydraulically connectable to a reservoir, a pedal feel simulator, and, via at least one normally open valve, at least one brake circuit. At least one hydraulic wheel brake is assigned to a brake circuit and connected thereto via at least one separate controllable switching valve. A pressure supply unit has a motor-driven piston and a cylinder. At least one valve assembly includes wheel-specific solenoid pressure control valves. At least one electrical control unit controls valves of the valve assembly and the motor of the pressure supply unit. Outlet valves enable discharge of hydraulic medium from wheel brakes or brake circuits into the reservoir. One housing contains the valve assembly and hydraulic component of the pressure supply unit, and a separate housing contains the master brake cylinder.

公开(公告)号：US20190061726A1

公开(公告)日：2019-02-28

申请号：US16174437

申请日：2018-10-30

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER ,  Valentin UNTERFRAUNER ,  Christian KÖGLSPERGER

IPC: B60T13/68 ,  B60T8/40 ,  B60T13/74

Abstract: The invention relates to a brake device and a method for operating a brake device, wherein said brake device comprises an actuation device, also a booster device, in particular having an electro-hydraulic drive, a piston cylinder device (main cylinder) in order to supply hydraulic pressure medium to the brake circuits, a valve device for controlling or regulating the supply of the pressure medium and an electronic control or regulating device. According to the invention provision is made for additional pressure medium volume to be supplied in a controlled manner to at least one brake circuit by means of a further piston cylinder device, in particular a double stroke piston and at least one valve controlled by the control or regulating device.

公开(公告)号：US20180312153A1

公开(公告)日：2018-11-01

申请号：US15558438

申请日：2015-12-30

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER ,  Anton VAN ZANTEN

IPC: B60T13/74 ,  B60T7/04 ,  B60T8/32 ,  B60T8/40 ,  B60T13/68

CPC classification number: B60T13/745 ,  B60T7/042 ,  B60T8/326 ,  B60T8/4081 ,  B60T8/4086 ,  B60T13/686 ,  B60T15/028

Abstract: An operating device for a vehicle brake system may include a control device and a piston-cylinder unit, at least one chamber of which may be connected to at least one wheel brake via at least one hydraulic line and a valve device that has at least normally open inlet valves or switching valves. The device may further include a pressure source that may be controlled to supply pressure medium to the at least one hydraulic line or to the at least one wheel brake. The control device may control pressure build-up via volume control and/or time control, using inlet valves. The interior or armature chamber of an inlet valve may be connected to a corresponding brake circuit via a hydraulic line, and a valve seat outlet may be connected to a corresponding wheel brake via a hydraulic line.

公开(公告)号：US20180194337A1

公开(公告)日：2018-07-12

申请号：US15558385

申请日：2016-03-16

Applicant: IPGATE AG

Inventor： Heinz LEIBER ,  Thomas LEIBER ,  Christian KÖGLSPERGER

IPC: B60T13/68 ,  B60T13/74 ,  B60T8/40

CPC classification number: B60T13/686 ,  B60T7/04 ,  B60T8/17 ,  B60T8/176 ,  B60T8/326 ,  B60T8/4022 ,  B60T8/4077 ,  B60T8/4081 ,  B60T11/165 ,  B60T13/58 ,  B60T13/745 ,  B60T17/22 ,  B60T2270/10 ,  B60T2270/404 ,  B60T2270/82

Abstract: A pressure generating device may comprise a piston-cylinder unit having a bilaterally acting piston with two effective surfaces defining two respective, separate working spaces in a sealing manner. Each working space is connected via a hydraulic line to a hydraulic circuit, wherein at least one hydraulic chamber of a consumer is connected to each hydraulic circuit, and wherein a drive drives the piston. Each working space may be in communication with a reservoir for hydraulic medium, via a respective hydraulic line having a respective switching valve. Alternatively, one or both working spaces may be in communication with a reservoir for hydraulic medium via a hydraulic line, with a switching valve in one or both hydraulic lines, and/or a respective outlet valve may be associated with one or more hydraulic chambers of the consumer, and a further connecting line having a switching valve may connect the pressure chambers and/or hydraulic lines.