Patents by Inventor Matthias Greiner

Matthias Greiner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250206276
    Abstract: A power pressure device. In the power pressure device, in particular for a hydraulic unit of a vehicle brake system, with a housing having a motor side for installing a motor driving the power pressure device and a control unit side, opposite the motor side, for installing a control unit controlling the motor, a cylinder arranged in the housing and extending with its cylinder axis from the motor side to the control unit side, and a piston axially displaceably guided in the cylinder and delimiting, with its piston end face, a cylinder chamber, the cylinder chamber is a first cylinder chamber and an additional second cylinder chamber is provided in the cylinder.
    Type: Application
    Filed: October 14, 2024
    Publication date: June 26, 2025
    Inventor: Matthias Greiner
  • Publication number: 20250100527
    Abstract: A wheel-specific brake unit for a vehicle. The wheel-specific brake unit including a single wheel brake cylinder, a motorized piston-cylinder device with an electric motor and at least one piston adjustable by means of an operation of the electric motor, and at least one hydraulic line via which the wheel brake cylinder is hydraulically connected to the motorized piston-cylinder device in such a way that brake fluid is transferable between the motorized piston-cylinder device and the wheel brake cylinder by means of the at least one adjusted piston of the motorized piston-cylinder device. A brake system for a vehicle, and a method for mounting a wheel-specific brake unit are also described.
    Type: Application
    Filed: February 6, 2023
    Publication date: March 27, 2025
    Inventor: Matthias Greiner
  • Publication number: 20250010829
    Abstract: A decentralized electrohydraulic brake unit for braking a wheel of a motor vehicle. The brake unit includes a brake caliper and a brake caliper piston which can be moved axially in the brake caliper via a drive device and via which hydraulic pressure can be applied to a brake piston. A brake pad is disposed on the brake piston. The brake caliper piston and the brake piston are connected to one another via an elastic element, via which the brake piston can actively be retracted after a braking operation.
    Type: Application
    Filed: February 26, 2024
    Publication date: January 9, 2025
    Inventor: Matthias Greiner
  • Patent number: 12098716
    Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake pressure generator encompasses a screw drive assemblage for converting an input-drive-side rotational motion into a translational motion for brake pressure generation. The screw drive assemblage encompasses a spindle that is rotatable via an electric motor, a spindle nut that interacts with a thread of the spindle so that the spindle nut is axially displaceable with a rotation of the spindle, and a housing that at least partly surrounds the spindle and the spindle nut. The screw drive assemblage additionally encompasses a drive wheel, which is disposed nonrotatably on the spindle and by way of which the spindle is connected to the electric motor. The spindle and the drive wheel are mounted, via a common bearing, rotatably with respect to the stationary housing. The bearing is radially surrounded at least partly by the drive wheel.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: September 24, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventors: Matthias Greiner, Claus Oehler, Sebastian Martin Reichert
  • Patent number: 11993231
    Abstract: A control unit for at least one vehicle deceleration device of a vehicle. The control unit includes an electronics unit including a memory unit in which a characteristic curve is stored which specifies a relation between a first input variable specified by an operation of a brake actuation element of the vehicle, and a setpoint variable regarding a setpoint vehicle deceleration exerted on the vehicle using the at least one vehicle deceleration device. The electronics device newly specifies at least one characteristic curve value of the characteristic curve under consideration of a second input variable specified by the driver by an operation of an accelerator of the vehicle, a current traffic and/or environment situation, and/or an ascertained position of the vehicle and a position-specific item of traffic and/or environment information, and the correspondingly modified characteristic curve is stored in the memory unit.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: May 28, 2024
    Assignee: ROBERT BOSCH GMBH
    Inventor: Matthias Greiner
  • Publication number: 20230391308
    Abstract: An actuation device for a brake system. The actuation device includes an electric motor which is designed to drive a drive shaft mounted rotatably about an axis of rotation, a housing, and a main brake cylinder which is rigidly connected to the housing, wherein at least one hydraulic piston is displaceably mounted in the main brake cylinder. The drive shaft is coupled to the hydraulic piston such that the hydraulic piston can be displaced by rotation of the drive shaft. The electric motor is arranged in the housing. The rigid connection of the main brake cylinder to the housing is provided at least in part by the drive shaft.
    Type: Application
    Filed: January 25, 2022
    Publication date: December 7, 2023
    Inventor: Matthias Greiner
  • Patent number: 11834020
    Abstract: An electromechanically drivable brake pressure generator for a hydraulic braking system of a vehicle, including an electric motor unit, which is activatable with the aid of an electronic control unit in accordance with a brake pressure to be applied and whose rotary motion generated thereby is converted by a reducing gearbox unit including an output-side spindle drive unit into a translatory motion for actuating a piston of a hydraulic piston/cylinder unit. A hydraulic block of the piston/cylinder unit also at least partially accommodates the electric motor unit in such a way that a motor shaft of the electric motor unit extending at least predominantly in the area of the hydraulic block is situated axially parallel to a longitudinal axis of the piston of the piston/cylinder unit which is movable in the hydraulic block.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: December 5, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: Mark Boehm, Claus Oehler, Matthias Greiner
  • Publication number: 20220388488
    Abstract: A piston actuation device for the supply of a pressure medium in a pressure medium circuit of a brake system of a motor vehicle. A piston actuation device includes a piston actuable by a spindle drive to execute a back-and-forth translation movement in the direction of a piston guidance axis. The spindle drive has a spindle nut and a spindle that cooperates with the spindle nut via a screw drive. The screw drive converts a rotation movement of the spindle nut into a translation movement of the spindle in the direction of a spindle movement axis. To transmit the translation movement to the piston, the piston and the spindle are connected to each other in an axially fixed manner. The axially fixed connection between the piston and the spindle includes an articulated joint, which allows for a concentricity deviation between the piston guidance axis and the spindle movement axis.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 8, 2022
    Applicant: Robert Bosch GmbH
    Inventor: Matthias Greiner
  • Publication number: 20220212647
    Abstract: The invention relates to an electromechanical brake pressure generator (14) for a hydraulic braking system (10) of a vehicle. The electromechanical brake pressure generator (14) includes at least one threaded drive assembly (40) for converting a drive-side rotation into a translation for brake pressure generation. The threaded drive assembly (40) includes a spindle (68), which is rotatable via an electric motor (38), and a spindle nut (80), which is situated on a thread (76) of the spindle (68) in such a way that the spindle nut (80) and a hydraulic piston (92) formed thereon are axially displaceable upon rotation of the spindle (68). In addition, the threaded drive assembly (40) includes a housing (64), which forms a hydraulic cylinder (66) corresponding to the hydraulic piston (92), in which the spindle (68) and the spindle nut (80) are accommodated, and a rotation lock (84, 88), via which the spindle nut (80) is secured against rotation upon rotation of the spindle (68).
    Type: Application
    Filed: February 18, 2020
    Publication date: July 7, 2022
    Inventors: Sebastian Martin Reichert, Claus Oehler, Matthias Greiner
  • Publication number: 20220144239
    Abstract: An electromechanical brake pressure generator for a hydraulic braking system of a vehicle. The electromechanical brake pressure generator encompasses a screw drive assemblage for converting an input-drive-side rotational motion into a translational motion for brake pressure generation. The screw drive assemblage encompasses a spindle that is rotatable via an electric motor, a spindle nut that interacts with a thread of the spindle so that the spindle nut is axially displaceable with a rotation of the spindle, and a housing that at least partly surrounds the spindle and the spindle nut. The screw drive assemblage additionally encompasses a drive wheel, which is disposed nonrotatably on the spindle and by way of which the spindle is connected to the electric motor. The spindle and the drive wheel are mounted, via a common bearing, rotatably with respect to the stationary housing. The bearing is radially surrounded at least partly by the drive wheel.
    Type: Application
    Filed: February 4, 2020
    Publication date: May 12, 2022
    Inventors: Matthias Greiner, Claus Oehler, Sebastian Martin Reichert
  • Publication number: 20210354670
    Abstract: For a compact design of a hydraulic block of a hydraulic modulator of a vehicle slip-controlled hydraulic-power brake system, an electric motor of a power brake-pressure generator is disposed on the same side of the hydraulic block as solenoid valves for a brake-pressure control and an electronic control unit for controlling the electric motor and the solenoid valves.
    Type: Application
    Filed: March 23, 2021
    Publication date: November 18, 2021
    Inventor: Matthias Greiner
  • Publication number: 20210009100
    Abstract: A control unit for at least one vehicle deceleration device of a vehicle. The control unit includes an electronics unit including a memory unit in which a characteristic curve is stored which specifies a relation between a first input variable specified by an operation of a brake actuation element of the vehicle, and a setpoint variable regarding a setpoint vehicle deceleration exerted on the vehicle using the at least one vehicle deceleration device. The electronics device newly specifies at least one characteristic curve value of the characteristic curve under consideration of a second input variable specified by the driver by an operation of an accelerator of the vehicle, a current traffic and/or environment situation, and/or an ascertained position of the vehicle and a position-specific item of traffic and/or environment information, and the correspondingly modified characteristic curve is stored in the memory unit.
    Type: Application
    Filed: February 21, 2019
    Publication date: January 14, 2021
    Inventor: Matthias Greiner
  • Publication number: 20200339089
    Abstract: An electromechanically drivable brake pressure generator for a hydraulic braking system of a vehicle, including an electric motor unit, which is activatable with the aid of an electronic control unit in accordance with a brake pressure to be applied and whose rotary motion generated thereby is converted by a reducing gearbox unit including an output-side spindle drive unit into a translatory motion for actuating a piston of a hydraulic piston/cylinder unit. A hydraulic block of the piston/cylinder unit also at least partially accommodates the electric motor unit in such a way that a motor shaft of the electric motor unit extending at least predominantly in the area of the hydraulic block is situated axially parallel to a longitudinal axis of the piston of the piston/cylinder unit which is movable in the hydraulic block.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 29, 2020
    Inventors: Mark Boehm, Claus Oehler, Matthias Greiner
  • Publication number: 20140255227
    Abstract: The invention relates to a plunger assembly for a high-pressure fuel pump for supporting a reciprocating pump piston (1) of a pump element on a cam (2) of a drive shaft (3), comprising a supporting element (4) with a recess (5), in which a running roller (6) is mounted rotatably. According to the invention, it is provided that, furthermore, a holding element (7) is provided for holding the running roller (6) in the recess (5) of the supporting element (4), which holding element (7) is connected to the supporting element (4) in a positively locking manner, wherein the positively locking connection brings about an anti-rotation safeguard of the holding element (7) with respect to a longitudinal axis A of the pump piston (1).
    Type: Application
    Filed: August 7, 2012
    Publication date: September 11, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventor: Matthias Greiner