Patents by Inventor Valentin Unterfrauner
Valentin Unterfrauner 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).
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Publication number: 20230016413Abstract: A brake apparatus, for electrically driven motor vehicles, includes a traction motor at an axle of a vehicle, which traction motor is used both as drive motor and as brake system with recuperation of brake energy, a first piston-cylinder unit, which is actuatable by means of an actuating device, in particular brake pedal, a second piston-cylinder unit, which is actuatable by means of an electromotive drive and a non-hydraulic gearing apparatus, in particular spindle drive. The piston-cylinder units are connected via hydraulic connecting lines to wheel brakes of the motor vehicle. A pressure chamber of the first piston-cylinder unit is connected to two wheel brakes of a vehicle axle, and a pressure chamber of the second piston-cylinder unit is connected to a vehicle axle for active brake force feedback control and recuperation control in interaction with the traction motor.Type: ApplicationFiled: September 15, 2022Publication date: January 19, 2023Inventors: Thomas LEIBER, Christian KÖGLSPERGER, Valentin UNTERFRAUNER, Rainer WINZER, Christoph PRÜLL
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Patent number: 11458943Abstract: A brake apparatus, for electrically driven motor vehicles, includes a traction motor at an axle of a vehicle, which traction motor is used both as drive motor and as brake system with recuperation of brake energy, a first piston-cylinder unit, which is actuatable by means of an actuating device, in particular brake pedal, a second piston-cylinder unit, which is actuatable by means of an electromotive drive and a non-hydraulic gearing apparatus, in particular spindle drive. The piston-cylinder units are connected via hydraulic connecting lines to wheel brakes of the motor vehicle. A pressure chamber of the first piston-cylinder unit is connected to two wheel brakes of a vehicle axle, and a pressure chamber of the second piston-cylinder unit is connected to a vehicle axle for active brake force feedback control and recuperation control in interaction with the traction motor.Type: GrantFiled: May 22, 2018Date of Patent: October 4, 2022Assignee: LSP INNOVATIVE AUTOMOTIVE SYSTEMS GMBHInventors: Thomas Leiber, Christian Köglsperger, Valentin Unterfrauner, Rainer Winzer, Christoph Prüll
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Patent number: 11104317Abstract: The invention relates to a brake device and a method for operating a brake device, wherein said brake device comprises an actuation device, also a booster device, in particular having an electro-hydraulic drive, a piston cylinder device (main cylinder) in order to supply hydraulic pressure medium to the brake circuits, a valve device for controlling or regulating the supply of the pressure medium and an electronic control or regulating device. According to the invention provision is made for additional pressure medium volume to be supplied in a controlled manner to at least one brake circuit by means of a further piston cylinder device, in particular a double stroke piston and at least one valve controlled by the control or regulating device.Type: GrantFiled: October 30, 2018Date of Patent: August 31, 2021Assignee: IPGATE AGInventors: Heinz Leiber, Thomas Leiber, Valentin Unterfrauner, Christian Köglsperger
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Publication number: 20210262535Abstract: The invention relates to an apparatus having a plurality of hydraulic actuators (Si) and a piston-cylinder unit (K), one working chamber (AK1) of which is connected, via at least one hydraulic connection line (HL) and supply lines (ZLi), to working chambers (ASi) of the hydraulic actuators (Si), wherein each working chamber (ASi) of a hydraulic actuator (Si) is connected to a supply line (ZLi) and switch valves (EVi) for selective opening and closing of the hydraulic supply lines (ZLi) are provided such that, in the opened position of the associated switch valve (EVi), a pressure change in the working chamber (ASi) of the actuator (Si) or an adjustment of the actuator (Si) can occur, wherein at least one pressure sensor (DSi) for determining the pressure in a working chamber (ASi) of an actuator (Si) or a hydraulic line (HL, ZLi, ALi) and a control device (ECU) is provided, characterized in that, for simultaneous pressure change in at least two actuators, (Si, Sk), the (ECU) permanently opens the switch valveType: ApplicationFiled: June 19, 2019Publication date: August 26, 2021Inventors: Valentin Unterfrauner, Rainer Winzer
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Patent number: 10940840Abstract: The disclosure relates to an actuating system for a vehicle brake, with an actuating arrangement, in particular a brake pedal, at least one (first) piston-cylinder unit, which is connected via a hydraulic line to the vehicle brake (braking circuit) in order to supply the braking circuit with pressure medium and apply pressure to the vehicle brake, and with a drive for the piston-cylinder unit. Pressure medium can be fed to the braking circuit in controlled manner in both piston movement directions, in particular the advance stroke and the return stroke, by means of at least one, in particular stepped, piston of the piston-cylinder unit.Type: GrantFiled: September 11, 2020Date of Patent: March 9, 2021Assignee: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner, Christian Köglsperger, Anton Van Zanten
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Publication number: 20210001825Abstract: The disclosure relates to an actuating system for a vehicle brake, with an actuating arrangement, in particular a brake pedal, at least one (first) piston-cylinder unit, which is connected via a hydraulic line to the vehicle brake (braking circuit) in order to supply the braking circuit with pressure medium and apply pressure to the vehicle brake, and with a drive for the piston-cylinder unit. Pressure medium can be fed to the braking circuit in controlled manner in both piston movement directions, in particular the advance stroke and the return stroke, by means of at least one, in particular stepped, piston of the piston-cylinder unit.Type: ApplicationFiled: September 11, 2020Publication date: January 7, 2021Inventors: Heinz LEIBER, Valentin UNTERFRAUNER, Christian KÖGLSPERGER, Anton VAN ZANTEN
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Patent number: 10759404Abstract: An actuation system, in particular for a vehicle brake, may include an actuating device, such as a brake pedal, at least one first pressure source, e.g., a piston-cylinder unit (master cylinder), which can be actuated in particular by means of the actuating device and a second pressure source, in particular a piston-cylinder unit, with an electro-mechanical drive. The pressure sources may each be connected to at least one brake circuit via a hydraulic line, in order to supply the brake circuit with pressurising medium and to pressurise the vehicle brake. There may further be a valve device for regulating the brake pressure. It is planned that during forward and return stroke at least one brake circuit can be fed controlled pressurising medium by way of the second pressure source.Type: GrantFiled: August 13, 2015Date of Patent: September 1, 2020Assignee: IPGATE AGInventors: Thomas Leiber, Anton Van Zanten, Christian Köglsperger, Valentin Unterfrauner, Heinz Leiber
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Publication number: 20200216047Abstract: A brake apparatus, for electrically driven motor vehicles, includes a traction motor at an axle of a vehicle, which traction motor is used both as drive motor and as brake system with recuperation of brake energy, a first piston-cylinder unit, which is actuatable by means of an actuating device, in particular brake pedal, a second piston-cylinder unit, which is actuatable by means of an electromotive drive and a non-hydraulic gearing apparatus, in particular spindle drive. The piston-cylinder units are connected via hydraulic connecting lines to wheel brakes of the motor vehicle. A pressure chamber of the first piston-cylinder unit is connected to two wheel brakes of a vehicle axle, and a pressure chamber of the second piston-cylinder unit is connected to a vehicle axle for active brake force feedback control and recuperation control in interaction with the traction motor.Type: ApplicationFiled: May 22, 2018Publication date: July 9, 2020Inventors: Thomas LEIBER, Christian KÖGLSPERGER, Valentin UNTERFRAUNER, Rainer WINZER, Christoph PRÜLL
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Patent number: 10493967Abstract: An actuating device for a vehicle brake system may include a first piston-cylinder unit, the at least one working space of which is to be connected to at least one wheel brake of the vehicle via at least one hydraulic line, an electromechanical drive device and an actuating device, in particular a brake pedal. Methods for operating a vehicle brake system including such an actuating device and for diagnosing various portions of a vehicle brake system (e.g., but not limited to, a feed valve or a travel simulator) are also presented.Type: GrantFiled: December 21, 2017Date of Patent: December 3, 2019Assignee: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner
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Patent number: 10421447Abstract: The invention relates to a pressure-volume delivery system comprising a piston-cylinder unit with a piston acting on both sides (dual-action reciprocating piston), said piston having at least two different active surfaces in corresponding pressure chambers and the pressure chambers being connected to at least one consumer via hydraulic lines. The delivery system also comprises a drive for the piston-cylinder unit. According to the invention, the pressure chambers and/or hydraulic lines are interconnected by means of at least one or more switching valves connected in parallel and having a large flow cross-section (AV) and via a short hydraulic line or lines with low flow resistance.Type: GrantFiled: September 16, 2014Date of Patent: September 24, 2019Assignee: IPGATE AGInventors: Heinz Leiber, Thomas Leiber, Valentin Unterfrauner
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Publication number: 20190242445Abstract: A shift gearbox may include at least two driven piston-cylinder units, which are each driven via a transmission of a drive, and the piston-cylinder units may each comprise a piston, which delimits a working chamber, and each working chamber is in hydraulic connection with at least one clutch actuator and at least one gear selector via a hydraulic main line, whereby the clutch actuator comprises a working chamber delimited by a piston. A valve may be respectively arranged between each working chamber of a clutch actuator and a hydraulic main line, and both the pressure build-up and the pressure reduction in the clutch actuators may occur by adjusting the piston of a piston-cylinder unit.Type: ApplicationFiled: February 28, 2017Publication date: August 8, 2019Applicant: LSP Innovative Automotive Systems GmbHInventors: Thomas LEIBER, Valentin UNTERFRAUNER, Rainer WINZER
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Publication number: 20190219154Abstract: A shift gearbox, a control unit, and at least one electric motor-driven driven piston-cylinder unit with a piston, which delimits at least one working chamber, which is connected via hydraulic lines to multiple shift gearbox units of the shift gearbox and shifts these, wherein the shift gearbox units comprise at least one gear selector unit and at least one clutch units, characterised in that the control unit for shifting at least one of the shift gearbox units rotates the electric motor drive by a predetermined angle and the piston of the piston-cylinder unit is adjusted by a predetermined path (?s) (path control) and the piston thereby conveys a required hydraulic volume to or from at least one shift gearbox unit.Type: ApplicationFiled: February 28, 2017Publication date: July 18, 2019Inventors: Thomas LEIBER, Valentin UNTERFRAUNER, Rainer WINZER, Carsten HECKER
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Publication number: 20190195350Abstract: A shift gearbox, a control unit and at least one electric-motor-driven piston-cylinder unit which has a piston and is connected via hydraulic lines to multiple shift gearbox units of the shift gearbox and shifts them, the shift gearbox units comprising at least two clutch units, characterised in that the piston of the piston-cylinder unit is in the form of a dual-action reciprocating piston, wherein the dual-action reciprocating piston sealingly separates two working chambers from each other, wherein each working chamber is connected via a main hydraulic line to one clutch each, and at least one working chamber of the dual-action reciprocating piston can be connected hydraulically via a switch valve to the reservoir.Type: ApplicationFiled: February 28, 2017Publication date: June 27, 2019Inventors: Thomas LEIBER, Valentin UNTERFRAUNER, Rainer WINZER
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Patent number: 10250098Abstract: The invention relates to a drive device, particularly comprising an internal rotor motor, with a motor housing, a stator for a winding and a rotor having at least one permanent magnet, wherein the motor housing has a housing part extending substantially radially on one side of the stator and the rotor has two rotor bearings. The rotor bearings are arranged on the substantially radially extending housing part or on a part connected thereto which extends substantially axially.Type: GrantFiled: April 11, 2013Date of Patent: April 2, 2019Assignee: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner, Thomas Leiber
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Publication number: 20190061726Abstract: The invention relates to a brake device and a method for operating a brake device, wherein said brake device comprises an actuation device, also a booster device, in particular having an electro-hydraulic drive, a piston cylinder device (main cylinder) in order to supply hydraulic pressure medium to the brake circuits, a valve device for controlling or regulating the supply of the pressure medium and an electronic control or regulating device. According to the invention provision is made for additional pressure medium volume to be supplied in a controlled manner to at least one brake circuit by means of a further piston cylinder device, in particular a double stroke piston and at least one valve controlled by the control or regulating device.Type: ApplicationFiled: October 30, 2018Publication date: February 28, 2019Inventors: Heinz LEIBER, Thomas LEIBER, Valentin UNTERFRAUNER, Christian KÖGLSPERGER
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Patent number: 10112592Abstract: The invention relates to a brake device and a method for operating a brake device, wherein said brake device comprises an actuation device, also a booster device, in particular having an electro-hydraulic drive, a piston cylinder device (main cylinder) in order to supply hydraulic pressure medium to the brake circuits, a valve device for controlling or regulating the supply of the pressure medium and an electronic control or regulating device (ECU). According to the invention provision is made for additional pressure medium volume to be supplied in a controlled manner to at least one brake circuit by means of a further piston cylinder device, in particular a double stroke piston (10) and at least one valve (AS) controlled by the control or regulating device (ECU).Type: GrantFiled: September 16, 2014Date of Patent: October 30, 2018Assignee: IPGATE AGInventors: Heinz Leiber, Thomas Leiber, Valentin Unterfrauner, Christian Koglsperger
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Publication number: 20180215367Abstract: An actuating device for a vehicle brake system may include a first piston-cylinder unit, the at least one working space of which is to be connected to at least one wheel brake of the vehicle via at least one hydraulic line, an electromechanical drive device and an actuating device, in particular a brake pedal. Methods for operating a vehicle brake system including such an actuating device and for diagnosing various portions of a vehicle brake system (e.g., but not limited to, a feed valve or a travel simulator) are also presented.Type: ApplicationFiled: December 21, 2017Publication date: August 2, 2018Inventors: Heinz Leiber, Valentin Unterfrauner
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Patent number: 9878697Abstract: The invention relates to an actuating device for a vehicle brake system, comprising a first piston-cylinder unit, the at least one working space of which is to be connected to at least one wheel brake of the vehicle via at least one hydraulic line, further comprising an electromechanical drive device and an actuating device, in particular a brake pedal, and to a method for operating an actuating device for a vehicle brake system. According to the invention, the actuating device comprises a further piston-cylinder unit (6, 41), the piston (6) of which can be actuated by means of the actuating device (10, 5) and is connected to a piston of the first piston-cylinder unit (4) via a connecting device.Type: GrantFiled: September 6, 2011Date of Patent: January 30, 2018Assignee: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner
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Publication number: 20170327098Abstract: The invention relates to an actuating system for a vehicle brake, with an actuating arrangement, in particular a brake pedal, at least one (first) piston-cylinder unit, which is connected via a hydraulic line to the vehicle brake (braking circuit) in order to supply the braking circuit with pressure medium and apply pressure to the vehicle brake, and with a drive for the piston-cylinder unit. According to the invention, pressure medium can be fed to the braking circuit in controlled manner in both piston movement directions, in particular the advance stroke and the return stroke, by means of at least one, in particular stepped, piston (10) of the piston-cylinder unit (10, 10a, 10b).Type: ApplicationFiled: May 20, 2015Publication date: November 16, 2017Inventors: Heinz LEIBER, Valentin UNTERFRAUNER, Christian KÖGLSPERGER, Anton VAN ZANTEN
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Publication number: 20170232948Abstract: An actuation system, in particular for a vehicle brake, may include an actuating device, such as a brake pedal, at least one first pressure source, e.g., a piston-cylinder unit (master cylinder), which can be actuated in particular by means of the actuating device and a second pressure source, in particular a piston-cylinder unit, with an electro-mechanical drive. The pressure sources may each be connected to at least one brake circuit via a hydraulic line, in order to supply the brake circuit with pressurising medium and to pressurise the vehicle brake. There may further be a valve device for regulating the brake pressure. It is planned that during forward and return stroke at least one brake circuit can be fed controlled pressurising medium by way of the second pressure source.Type: ApplicationFiled: August 13, 2015Publication date: August 17, 2017Applicant: IPGATE AGInventors: Thomas LEIBER, Anton VAN ZANTEN, Christian KÖGLSPERGER, Valentin UNTERFRAUNER, Heinz LEIBER