Patents by Inventor Thomas Leiber

Thomas Leiber 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).

  • Patent number: 12612021
    Abstract: A brake system for a vehicle may contain redundant components that permit braking force to be applied in case of partial or complete failure of a primary braking mechanism. The system may include at least one hydraulic brake circuit having at least one hydraulically operating wheel brake; a pressure supply device driven by an electric-motor drive; at least one electronic control and regulating device; a valve assembly having valves for setting wheel-specific brake pressures and/or for (dis)connecting the wheel brakes (from)to the pressure supply device; a piston-cylinder unit actuable by an actuating device, which can be connected to the at least one hydraulic brake circuit, to at least one brake unit comprising an electric drive motor, to an electric parking brake, to a hydraulically supported electromechanical brake, and/or to an electromechanical brake; at least one electric drive motor for at least one axle or wheel; and a central control unit.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 28, 2026
    Assignee: IPGATE AG
    Inventor: Thomas Leiber
  • Publication number: 20260001516
    Abstract: A driving dynamics system for a vehicle may include a primary control unit for detecting and/or generating steering commands and braking commands; a brake system having first and second electrohydraulic pressure supply units; four hydraulically actuatable wheel brakes of respective wheels; electrically actuatable brake pressure adjustment valves; and an electric steering actuator for actuating at least one axle. The driving dynamics system may implement a steering command during normal operation to actuate at least one of the pressure supply units and the steering actuator and/or, to implement a braking command during normal operation, to actuate at least the second pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment and, in a fault case, to actuate at least the first pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment.
    Type: Application
    Filed: August 21, 2025
    Publication date: January 1, 2026
    Inventor: Thomas LEIBER
  • Patent number: 12496908
    Abstract: A brake device for a motor vehicle with two axles, including at least one axle with an electric traction motor for driving and braking at least one wheel arranged on the axle, where energy can be recovered by means of the traction motor during braking. Each wheel has a wheel brake. A pressure supply is provided in the form of a piston-cylinder unit, which can both build up pressure and reduce pressure. The pressure supply forms part of a pressure supply device, having at least two connections, switchably connected by respective valves, to the brake circuits, an ABS/ESP unit and/or an actuating unit. An open-loop and closed-loop control device controls the at least one electric traction motor and components of the pressure supply device such that a braking deceleration can be set by closed-loop control for each brake circuit and/or each axle, with different braking torques at the respective axles.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: December 16, 2025
    Assignee: LSP INNOVATIVE AUTOMOTIVE SYSTEMS GMBH
    Inventors: Christian Koglsperger, Simon Zollitsch, Thomas Leiber
  • Patent number: 12479404
    Abstract: A driving dynamics system for a vehicle may include a primary control unit for detecting and/or generating steering commands and braking commands; a brake system having first and second electrohydraulic pressure supply units; four hydraulically actuable wheel brakes of respective wheels; electrically actuable brake pressure adjustment valves; and an electric steering actuator for actuating at least one axle. The driving dynamics system may implement a steering command during normal operation to actuate at least one of the pressure supply units and the steering actuator and/or, to implement a braking command during normal operation, to actuate at least the second pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment and, in a fault case, to actuate at least the first pressure supply unit and at least the brake pressure adjustment valves for a wheel-specific pressure adjustment.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: November 25, 2025
    Assignee: IPGATE AG
    Inventor: Thomas Leiber
  • Publication number: 20250319852
    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.
    Type: Application
    Filed: June 26, 2025
    Publication date: October 16, 2025
    Inventors: Thomas LEIBER, Heinz LEIBER, Anton VAN ZANTEN
  • Publication number: 20250313184
    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.
    Type: Application
    Filed: June 17, 2025
    Publication date: October 9, 2025
    Inventor: Thomas LEIBER
  • Publication number: 20250296538
    Abstract: A brake system for a vehicle may contain redundant components that permit braking force to be applied in case of partial or complete failure of a primary braking mechanism. The system may include at least one hydraulic brake circuit having at least one hydraulically operating wheel brake; a pressure supply device driven by an electric-motor drive; at least one electronic control and regulating device; a valve assembly having valves for setting wheel-specific brake pressures and/or for (dis)connecting the wheel brakes (from) to the pressure supply device; a piston-cylinder unit actuable by an actuating device, which can be connected to the at least one hydraulic brake circuit, to at least one brake unit comprising an electric drive motor, to an electric parking brake, to a hydraulically supported electromechanical brake, and/or to an electromechanical brake; at least one electric drive motor for at least one axle or wheel; and a central control unit.
    Type: Application
    Filed: June 3, 2025
    Publication date: September 25, 2025
    Inventor: Thomas LEIBER
  • Publication number: 20250296540
    Abstract: A brake system for a vehicle may contain redundant components that permit braking force to be applied in case of partial or complete failure of a primary braking mechanism. The system may include at least one hydraulic brake circuit having at least one hydraulically operating wheel brake; a pressure supply device driven by an electric-motor drive; at least one electronic control and regulating device; a valve assembly having valves for setting wheel-specific brake pressures and/or for (dis)connecting the wheel brakes (from) to the pressure supply device; a piston-cylinder unit actuable by an actuating device, which can be connected to the at least one hydraulic brake circuit, to at least one brake unit comprising an electric drive motor, to an electric parking brake, to a hydraulically supported electromechanical brake, and/or to an electromechanical brake; at least one electric drive motor for at least one axle or wheel; and a central control unit.
    Type: Application
    Filed: June 5, 2025
    Publication date: September 25, 2025
    Inventor: Thomas LEIBER
  • Publication number: 20250296539
    Abstract: A brake system for a vehicle may contain redundant components that permit braking force to be applied in case of partial or complete failure of a primary braking mechanism. The system may include at least one hydraulic brake circuit having at least one hydraulically operating wheel brake; a pressure supply device driven by an electric-motor drive; at least one electronic control and regulating device; a valve assembly having valves for setting wheel-specific brake pressures and/or for (dis)connecting the wheel brakes (from)to the pressure supply device; a piston-cylinder unit actuable by an actuating device, which can be connected to the at least one hydraulic brake circuit, to at least one brake unit comprising an electric drive motor, to an electric parking brake, to a hydraulically supported electromechanical brake, and/or to an electromechanical brake; at least one electric drive motor for at least one axle or wheel; and a central control unit.
    Type: Application
    Filed: June 5, 2025
    Publication date: September 25, 2025
    Inventor: Thomas LEIBER
  • Publication number: 20250282228
    Abstract: A driving dynamics system for a vehicle may include at least one wheel brake for dissipative braking of a wheel of the vehicle; at least one braking unit associated with the at least one wheel brake and designed to generate a dissipative braking torque via the at least one wheel brake; at least one electric traction motor controllable to generate a regenerative braking torque for at least one wheel or axle of the vehicle; and a central control unit configured to control the at least one brake unit and the at least one electric traction motor for a braking function in combination such that a combined braking torque is generated by means of the at least one brake unit and the at least one electric traction motor. The braking function relates to simultaneous control of a basic braking torque and a controlled additional braking torque.
    Type: Application
    Filed: May 4, 2023
    Publication date: September 11, 2025
    Inventor: Thomas LEIBER
  • Patent number: 12409823
    Abstract: A brake system for a vehicle may include at least two hydraulic brake circuits, each having at least one hydraulically acting wheel brake, at least two pressure supply devices, each of which is driven by an electromotive drive, at least one valve assembly having valves for the wheel-individual adjustment of brake pressures and/or for separating the wheel brakes from, or connecting same to, a pressure supply device, at least one electronic control and regulating unit, one of which is a superordinate central control unit that controls individual control and regulating units of the components of the brake system, as well as at least one additional electric drive motor for at least one axle or wheel of the vehicle. The brake system may use the at least one pressure supply device and/or the at least one electric drive motor for controlling pressure in at least one wheel brake for steering interventions.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 9, 2025
    Assignee: IPGATE AG
    Inventor: Thomas Leiber
  • Publication number: 20250276675
    Abstract: A brake system may include an actuation device that may actuate a first piston-cylinder unit to apply pressure medium to at least one brake circuit via a valve device, where a piston of the first piston-cylinder unit separate first and second working chambers; a second piston-cylinder unit, having an electromotive drive and a transmission to feed pressure medium to at least one of the brake circuits via a valve device; and a motor-pump unit having a valve device to feed pressure medium to the brake circuits. The motor of the electromotive drive of the second piston-cylinder unit and the motor of the motor-pump unit may be used jointly or independently of one another, under control of a control device. The motor-pump unit is connected via two hydraulic connections, one or both of which may incorporate separating valves, to the first and second working chambers of the first piston-cylinder unit.
    Type: Application
    Filed: May 20, 2025
    Publication date: September 4, 2025
    Inventors: Heinz LEIBER, Anton VAN ZANTEN, Thomas LEIBER
  • Patent number: 12397763
    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.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: August 26, 2025
    Assignee: IPGATE AG
    Inventors: Heinz Leiber, Thomas Leiber, Christian Köglsperger
  • Publication number: 20250263053
    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.
    Type: Application
    Filed: May 8, 2025
    Publication date: August 21, 2025
    Inventors: Thomas LEIBER, Heinz LEIBER, Anton VAN ZANTEN
  • Patent number: 12384348
    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.
    Type: Grant
    Filed: August 18, 2023
    Date of Patent: August 12, 2025
    Assignee: IPGATE AG
    Inventors: Heinz Leiber, Thomas Leiber
  • Patent number: 12384347
    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 via 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.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: August 12, 2025
    Assignee: IPGATE AG
    Inventor: Thomas Leiber
  • Patent number: 12377827
    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.
    Type: Grant
    Filed: April 18, 2024
    Date of Patent: August 5, 2025
    Assignee: IPGATE AG
    Inventors: Heinz Leiber, Anton Van Zanten, Thomas Leiber
  • Publication number: 20250242790
    Abstract: A brake system may include a first module, comprising a first pressure supply unit having an electromotive drive, a second pressure supply unit having an activation element, e.g., a brake pedal, and a first control apparatus for controlling the first pressure supply unit. The first module is set up to apply pressurizing medium to at least one first brake circuit via a first connection point and to at least one second brake circuit via a second connection point. The brake circuits are assigned wheel brakes, and the brake system is configured to implement an active retraction of at least one brake pad of the wheel brakes by generating a vacuum using the first pressure supply unit. Differences between/among clearances in the wheel brakes may be compensated using associated inlet valves.
    Type: Application
    Filed: April 17, 2025
    Publication date: July 31, 2025
    Inventors: Heinz Leiber, Thomas Leiber
  • Patent number: 12365319
    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.
    Type: Grant
    Filed: April 9, 2024
    Date of Patent: July 22, 2025
    Assignee: IPGATE AG
    Inventors: Heinz Leiber, Anton Van Zanten, Thomas Leiber
  • Patent number: 12358480
    Abstract: A brake system for a vehicle may contain redundant components that permit braking force to be applied in case of partial or complete failure of a primary braking mechanism. The system may include at least one hydraulic brake circuit having at least one hydraulically operating wheel brake; a pressure supply device driven by an electric-motor drive; at least one electronic control and regulating device; a valve assembly having valves for setting wheel-specific brake pressures and/or for (dis)connecting the wheel brakes (from) to the pressure supply device; a piston-cylinder unit actuable by an actuating device, which can be connected to the at least one hydraulic brake circuit, to at least one brake unit comprising an electric drive motor, to an electric parking brake, to a hydraulically supported electromechanical brake, and/or to an electromechanical brake; at least one electric drive motor for at least one axle or wheel; and a central control unit.
    Type: Grant
    Filed: May 16, 2024
    Date of Patent: July 15, 2025
    Assignee: IPGATE AG
    Inventor: Thomas Leiber