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公开(公告)号：US20200339091A1
公开(公告)日：2020-10-29
申请号：US16854332
申请日：2020-04-21
Applicant: Robert Bosch GmbH
Inventor： Mark Boehm , Sebastian Martin Reichert
Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle, including a threaded drive system for converting a drive-side rotary motion into a translatory motion for brake pressure generation. The system includes a spindle rotatable via an electric motor, a spindle nut cooperating with a thread of the spindle so the spindle nut is axially displaceable with a rotation of the spindle and a brake fluid is loadable or relievable, and a housing which, together with the spindle nut, forms an anti-twist protection which secures the spindle nut against twisting during rotation of the spindle. The spindle nut forms at least one spindle nut reference surface, which cooperates with at least one stop surface, which is stationary with respect to the housing, in a relief end position of the spindle nut in such a way that an instantaneous axial position of the spindle nut is determinable therefrom.
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公开(公告)号：US12168426B2
公开(公告)日：2024-12-17
申请号：US17769117
申请日：2020-08-20
Applicant: Robert Bosch GmbH
Inventor： Mark Boehm
Abstract: An electromechanically drivable brake pressure generator for a hydraulic braking system of a vehicle. The electromechanically drivable brake pressure generator includes an electric motor, using which a driving rotational speed is generatable; a planetary gear, which is driven on the input side by the electric motor to convert the driving rotational speed of the electric motor into a slower rotational speed, the planetary gear including an annulus gear, accommodated rotatably fixedly thereto in an annulus gear receptacle; and a hydraulic module, which is connected to an output side of the planetary gear and using which a brake pressure is generatable. A torque support is situated between the annulus gear and the annulus gear receptacle, which extends in an axial direction to the planetary gear and which cooperates with a recess so that the annulus gear and the annulus gear receptacle are held rotatably fixedly with respect to one another.
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公开(公告)号：US11981305B2
公开(公告)日：2024-05-14
申请号：US17779769
申请日：2020-10-29
Applicant: Robert Bosch GmbH
Inventor： Claus Oehler , Mark Boehm
CPC classification number: B60T13/745 , B60T17/08
Abstract: An electromechanically drivable brake pressure generator for a hydraulic brake system of a vehicle. The brake pressure generator including a spindle drive unit for converting a rotary movement on the drive side into a translational movement for the purpose of actuating a piston of a hydraulic piston-and-cylinder unit. A gear unit is arranged between the spindle drive unit and an electric drive motor. A drive motor axis and an axis of the spindle drive unit are arranged radially offset from one another. The piston-and-cylinder unit and the electric drive motor are arranged on axially opposite sides of the gear unit.
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公开(公告)号：US20240109525A1
公开(公告)日：2024-04-04
申请号：US17769117
申请日：2020-08-20
Applicant: Robert Bosch GmbH
Inventor： Mark Boehm
IPC: B60T13/74
CPC classification number: B60T13/745 , B60Y2400/73
Abstract: An electromechanically drivable brake pressure generator for a hydraulic braking system of a vehicle. The electromechanically drivable brake pressure generator includes an electric motor, using which a driving rotational speed is generatable; a planetary gear, which is driven on the input side by the electric motor to convert the driving rotational speed of the electric motor into a slower rotational speed, the planetary gear including an annulus gear, accommodated rotatably fixedly thereto in an annulus gear receptacle; and a hydraulic module, which is connected to an output side of the planetary gear and using which a brake pressure is generatable. A torque support is situated between the annulus gear and the annulus gear receptacle, which extends in an axial direction to the planetary gear and which cooperates with a recess so that the annulus gear and the annulus gear receptacle are held rotatably fixedly with respect to one another.
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公开(公告)号：US20220306065A1
公开(公告)日：2022-09-29
申请号：US17606144
申请日：2020-02-10
Applicant: Robert Bosch GmbH
Inventor： Christoph Oehler , Claus Oehler , Mark Boehm , Martin Uhlig , Sebastian Martin Reichert
Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake booster includes at least one gear for transferring a torque of the electric motor for brake pressure generation. The gear in this case includes a planetary carrier for supporting planetary wheels, planetary wheels pins which are connected to the planetary carrier and on which the planetary wheels are rotatably fastenable, and a pinion for transferring a drive torque or output torque, which is rotatably fixedly connected to the planetary carrier at a side thereof opposite the planetary wheel pins. At least the part of the planetary carrier that includes the planetary wheel pins is materially integrally formed with the latter from the same material.
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Patent Agency Ranking
公开(公告)号：US12172616B2
公开(公告)日：2024-12-24
申请号：US17429921
申请日：2020-02-08
Applicant: Robert Bosch GmbH
Inventor： Claus Oehler , Mark Boehm , Martin Uhlig , Christoph Oehler , Marc Micke , Konstantin Haberkorn
Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The brake pressure generator has a spindle drive unit for converting an input-drive-side rotational motion into a translational motion for piston actuation of a hydraulic piston/cylinder unit. A multi-stage gear linkage is disposed between the spindle drive unit and an electric drive motor. The gear linkage encompasses a planetary gearset unit driven by a motor pinion constituting a sun gear, the output-drive-side ring gear of which unit drives the spindle drive unit. A motor shaft of the electric drive motor extends in adjacently parallel fashion next to a spindle drive shaft of the spindle drive unit.
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公开(公告)号：US12162449B2
公开(公告)日：2024-12-10
申请号：US17370422
申请日：2021-07-08
Applicant: Robert Bosch GmbH
Inventor： Florian Tuerk , Willi Nagel , Claus Oehler , Mark Boehm
Abstract: An electromechanical brake pressure generator including a spindle drive unit for converting a rotational motion of an electric motor-driven drive shaft into a translatory motion of a piston that is coupled to the spindle drive unit, the spindle drive unit being operatively connected to the drive shaft via a multi-stage transmission. The multi-stage transmission is a planetary gear set having a first and a second stage. With the aid of the transmission, a spindle or a spindle nut of the spindle drive unit is drivable, which is rotatably mounted in a housing of the brake pressure generator via a bearing assembly receiving axial and radial forces. A braking system for a vehicle including an electromechanical brake pressure generator is also described.
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公开(公告)号：US11808330B2
公开(公告)日：2023-11-07
申请号：US16852864
申请日：2020-04-20
Applicant: Robert Bosch GmbH
Inventor： Mark Boehm , Claus Oehler
CPC classification number: F16H25/24 , B60T7/042 , B60T8/3255 , B60T13/745 , F16H2025/2445
Abstract: An electromechanical brake pressure generator including a threaded drive system. The system includes a rotatable spindle nut, a axially displaceable spindle cooperating with a thread of the spindle nut, and a hydraulic piston which at least partially radially surrounds the spindle and the spindle nut and is rotatably fixedly connected to the spindle and which carries out an axial piston stroke as a result of the rotation of the spindle nut. The system includes a housing which at least partially surrounds the hydraulic piston and forms a hydraulic cylinder, and an axial recess, in the hydraulic cylinder, which forms an anti-twist protection together with a torque support formed at the hydraulic piston and using which the hydraulic piston and the spindle are secured against twisting during a rotation of the spindle nut, the recess forming a sliding surface for the torque support of the hydraulic piston.
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公开(公告)号：US20230116286A1
公开(公告)日：2023-04-13
申请号：US17909582
申请日：2021-03-03
Applicant: Robert Bosch GmbH
Inventor： Claus Oehler , Holger Seeg , Janos Tamas Csoti , Mark Boehm
Abstract: A drive device for a braking system of a motor vehicle. The drive device includes a housing and an electric machine that includes a rotatably supported drive shaft. The drive shaft is connected or connectable to an actuator element of the braking system via a planet wheel gear situated in the housing. The drive shaft is rotatably supported in a bearing shield situated in the housing. The bearing shield is made of plastic.
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公开(公告)号：US20200339090A1
公开(公告)日：2020-10-29
申请号：US16852921
申请日：2020-04-20
Applicant: Robert Bosch GmbH
Inventor： Mark Boehm , Claus Oehler
Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake pressure generator includes at least one threaded drive system for converting a drive-side rotary motion into a translatory motion for the brake pressure generation. The threaded drive system includes a rotatable spindle nut, and a spindle cooperating with a thread of the spindle nut so that the spindle is axially displaceable with a rotation of the spindle nut. The threaded drive system includes a drive wheel, which is non-rotatably situated on the spindle nut and via which the spindle nut is connected to the electric motor, the drive wheel and the spindle nut being designed as separate plastic components, including a plurality of mutually corresponding connecting structures which, in the assembled state, engage one another in a form-locked manner in such a way that a torque required for rotating the spindle nut is transmittable.
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