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公开(公告)号：US20230192045A1
公开(公告)日：2023-06-22
申请号：US18172573
申请日：2023-02-22
Applicant: Robert Bosch GmbH
Inventor： Harald Speer , Edgar Kurz , Wolfgang Schuller
CPC classification number: B60T8/4031 , B60T8/3615 , F15B15/1404 , F16K27/003 , F16K27/029 , F16K31/06
Abstract: In a hydraulic unit, which is for a hydraulic brake system, that has a hydraulic block and at least one valve device, the valve device includes a hydraulic cartridge with a valve seat and with a movable closing body for blocking and opening the valve seat, and a magnet assembly with a magnet coil for generating a magnetic force for moving the closing body. The magnet assembly is integrated into the hydraulic block, and the valve device has a permanent magnet in order to assist the movement of the closing body by means of magnetic force.
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公开(公告)号：US11565674B2
公开(公告)日：2023-01-31
申请号：US16772599
申请日：2018-12-07
Applicant: Robert Bosch GmbH
Inventor： Frank Baehrle-Miller , Klaus Landesfeind , Klaus-Dieter Nijakowski , Edith Mannherz , Hubertus Wienken , Christoph Brand , Edgar Kurz , Wolfgang Schuller
IPC: B60T13/14
Abstract: A hydraulic brake system for a vehicle includes a master brake cylinder, a hydraulic unit, and multiple wheel brakes. The hydraulic unit Ha at least one brake circuit for modulating the braking pressure in the wheel brakes. At least one wheel brake is paired with a bistable solenoid valve, which is looped into the corresponding fluid channel directly upstream of the paired wheel brake and which enables the braking pressure in the paired wheel brake to be modulated in a de-energized open position and locks the current braking pressure in the paired wheel brake in a de-energized closed position, wherein a volume equalization device which comprises a connectable accumulator opens into the corresponding fluid channel between the bistable solenoid valve and the paired wheel brake.
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公开(公告)号：US20210054890A1
公开(公告)日：2021-02-25
申请号：US16994912
申请日：2020-08-17
Applicant: Robert Bosch GmbH
Inventor： Edgar Kurz , Wolfgang Schuller
Abstract: A brake system damping device includes a first space, a second space, a third space, a first separating element, a second separating element, a closure element, and a plug-type element. The first space is configured to have hydraulic pressure applied thereto. A compressible medium is situated in the second space and the third space. The first separating element separates the first space from the second space, and the second separating element separates the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage formed in the second separating element. The closure element is configured to be moved with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space. The plug-type element is arranged in the passage.
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4.发明申请公开(公告)号：US20200238966A1
公开(公告)日：2020-07-30
申请号：US16609820
申请日：2018-04-05
Applicant: Robert Bosch GmbH
Inventor： Massimiliano Ambrosi , Edgar Kurz , Wolf Stahr , Wolfgang Schuller , Michael Eisenlauer
Abstract: A bistable solenoid valve for a hydraulic braking system includes a magnetic assembly and a guide sleeve in which a pole core is fixedly arranged and in which a valve armature is arranged for axial movement. The valve armature has a permanent magnet that is polarized in a direction of motion thereof. The magnetic assembly is slid onto the pole core and the guide sleeve, and the pole core forms an axial stop for the valve armature. The permanent magnet is injected or mounted in a magnet receptacle at an end face of the valve armature facing the pole core. The valve armature is configured to be driven by a magnetic force of the magnetic assembly and/or the permanent magnet so as to force a closing element into a valve seat during a closing motion and to lift the closing element out of the valve seat during an opening motion.
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公开(公告)号：US20170291589A1
公开(公告)日：2017-10-12
申请号：US15516801
申请日：2015-08-06
Applicant: Robert Bosch GmbH
Inventor： Wolfgang Schuller
CPC classification number: B60T13/686 , B60T8/4059 , B60T8/4872 , B60T17/02
Abstract: A hydraulic vehicle brake system includes at least one brake circuit, at least one wheel brake, and a pressure-generating unit. The pressure-generating unit is configured to supply the wheel brake with pressure medium under brake pressure, or to adapt the brake pressure to slip conditions of a wheel assigned to the wheel brake. A feed volume of the pressure medium of the pressure-generating unit is controllable according to a pressure medium volume demand. The pressure-generating unit includes at least two pumps that feed into a common pressure line, and an electronically actuated mechanism configured to control a pressure medium connection from the pressure line and a suction side of at least one of the pumps as a function of the demand.
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Patent Agency Ranking
公开(公告)号：US11434963B2
公开(公告)日：2022-09-06
申请号：US16994912
申请日：2020-08-17
Applicant: Robert Bosch GmbH
Inventor： Edgar Kurz , Wolfgang Schuller
Abstract: A brake system damping device includes a first space, a second space, a third space, a first separating element, a second separating element, a closure element, and a plug-type element. The first space is configured to have hydraulic pressure applied thereto. A compressible medium is situated in the second space and the third space. The first separating element separates the first space from the second space, and the second separating element separates the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage formed in the second separating element. The closure element is configured to be moved with the first separating element so as to close the passage in a movement direction as soon as the hydraulic pressure has reached a predefined pressure value in the first space. The plug-type element is arranged in the passage.
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公开(公告)号：US11351973B2
公开(公告)日：2022-06-07
申请号：US16617313
申请日：2018-06-11
Applicant: Robert Bosch GmbH
Inventor： Massimiliano Ambrosi , Edgar Kurz , Wolf Stahr , Wolfgang Schuller , Klaus Landesfeind , Michael Eisenlauer
IPC: F16K31/06 , F16K31/08 , B60T15/02 , H01F7/02 , H01F7/08 , H01F7/16 , H01F27/24 , H01F27/28 , B60T8/36
Abstract: A bistable solenoid valve for a hydraulic brake system has a guide sleeve in which an upper immovable pole core is fixedly arranged and a closing element is displaceably arranged. The closing element is forced into a valve seat during a closing movement and lifts off from the valve seat during an opening movement, and is fixedly connected to a magnet assembly. An actuation of the movement of the closing element is performed by the magnet assembly via a coil positioned around and substantially surrounding the guide sleeve. A lower immovable pole core is fixedly arranged in the guide sleeve and the magnet assembly is positioned between the lower and the upper pole core.
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公开(公告)号：US20190031167A1
公开(公告)日：2019-01-31
申请号：US16071973
申请日：2017-01-31
Applicant: Robert Bosch GmbH
Inventor： Wolfgang Schuller
Abstract: A brake system for a motor vehicle includes a master cylinder, an actuatable switchover valve, and at least one parking brake device. The master cylinder includes at least one brake circuit which has at least one hydraulically actuatable wheel brake. The actuatable switchover valve is configured to separate and connect the brake circuit from/to the master cylinder. The parking brake device is paired with the wheel brake and configured as a hydraulically actuatable parking brake device. For this purpose, the parking brake device has a hydraulic pressure store which is configured to be operatively connected to the brake circuit. The switchover valve is configured to be closed in at least one first de-energized state in order to separate the brake circuit from the master cylinder.
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公开(公告)号：US09969371B2
公开(公告)日：2018-05-15
申请号：US15305630
申请日：2015-03-16
Applicant: Robert Bosch GmbH
Inventor： Wolfgang Schuller , Goekhan Oezkan
CPC classification number: B60T8/405 , B60T8/341 , B60T8/4068 , B60T8/4872 , B60T2201/022 , B60T2270/10
Abstract: A slip-controllable vehicle brake system includes a drivable pressure generator configured to supply at least one wheel brake of a brake circuit with pressure medium. The pressure generator has a pump inlet valve and a pump outlet valve to control the throughput of the pressure medium. Novel system functions, such as pedestrian protection, require that the pressure generator has a drive with increased power to provide high pressure medium volumes to the wheel brakes at a faster rate. In the case of ABS braking, a high braking pressure generated by the drive works against the starting of the pressure generator and increases the starting current. To ease the starting of the drive and to limit the required starting current, a mechanism is provided downstream of the pump outlet valve which prevents an exerting of the pressure generator on the pressure side with the pressure of the main brake cylinder.
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公开(公告)号：US20170096132A1
公开(公告)日：2017-04-06
申请号：US15312272
申请日：2015-03-30
Applicant: Robert Bosch GmbH
Inventor： Heiko Druckenmueller , Wolfgang Schuller , Goekhan Oezkan
CPC classification number: B60T8/4068 , B60T8/3655 , B60T8/4872
Abstract: A slip-controllable vehicle brake system includes a brake circuit to which a master brake cylinder is connected to a wheel brake. The connection between the brake circuit and the master brake cylinder is controlled by a changeover valve. To supply the wheel brake with pressure medium, the brake circuit has a pressure generator that is externally driven and interacts with a pressure build-up valve of the wheel brake. The brake system includes a pressure pulsation damping device with a pulsation damper and a resistor which forms a flow cross-section. The pressure build-up valve and/or the changeover valve is continuously adjustable and steplessly switched from an open position into a blocked position. The flow cross-section of the resistor is actualized by an electronic triggering of the pressure build-up valve or the changeover valve such that it is variably adjusted to changing environmental or operating conditions.
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