Brake system
    65.
    发明授权

    公开(公告)号:US11472388B2

    公开(公告)日:2022-10-18

    申请号:US16625228

    申请日:2018-06-20

    Applicant: IPGATE AG

    Abstract: A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

    BRAKE DEVICE, IN PARTICULAR FOR ELECTRICALLY DRIVEN MOTOR VEHICLES

    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

    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.

    HYDRAULIC SYSTEM HAVING AT LEAST TWO HYDRAULIC CIRCUITS AND TWO PRESSURE SUPPLY DEVICES

    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

    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.

    HYDRAULIC SYSTEM WITH AT LEAST ONE PRESSURE SUPPLY DEVICE AND A SAFETY GATE FOR THE CONNECTION OF THE HYDRAULIC CIRCUITS

    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

    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.

    ACTUATING DEVICE FOR AN ENTIRELY OR PARTIALLY HYDRAULICALLY OPERATING BRAKING SYSTEM FOR A VEHICLE

    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

    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.

    BRAKE SYSTEM, IN PARTICULAR FOR AUTOMATIC DRIVING

    公开(公告)号:US20210122348A1

    公开(公告)日:2021-04-29

    申请号:US17053009

    申请日:2019-05-09

    Applicant: IPGATE AG

    Inventor: Heinz LEIBER

    Abstract: A brake system for a motor vehicle may comprise an actuating device, in particular a brake pedal, a pressure supply device, in particular a hydraulic piston-cylinder unit driven by an electric motor driven, for hydraulically adjusting a brake piston of at least one wheel brake, wherein the pressure supply device works in particular on wheel brakes of the front axle of the motor vehicle, and having at least one electromechanically actuatable wheel brake, for electrically adjusting a brake piston of the wheel brake, in particular for the rear wheels of the motor vehicle. For electromechanically actuating the wheel brake, an electric motor and a first transmission, which transmits the driving force of the motor to a further transmission, in particular a ball-screw transmission, are provided. One or more (hydraulic and/or electric) components or subsystems of the brake system are designed to have at least one layer of redundancy.

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