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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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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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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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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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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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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Patent number: 9278679Abstract: The invention relates to a brake system having a brake booster, in which pressure medium can be guided by means of at least one switchable valve (7, 15) from at least one wheel brake (10) into an accumulator chamber (8), wherein a control device controls at least the at least one switchable valve (7, 15), wherein, in the case of a disruption of the brake booster (1), in particular if the drive (11) thereof or the gear mechanism which is connected between the drive (11) and the piston of the brake master cylinder (4) is blocked, the at least one accumulator chamber (8) serves to receive pressure medium from at least one wheel brake or at least one brake circuit and therefore to dissipate pressure in at least one wheel brake.Type: GrantFiled: July 15, 2011Date of Patent: March 8, 2016Assignee: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner, Christian Koeglsperger
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Publication number: 20150076972Abstract: 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: ApplicationFiled: April 11, 2013Publication date: March 19, 2015Inventors: Heinz Leiber, Valentin Unterfrauner, Thomas Leiber
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Publication number: 20150028667Abstract: The invention relates to an electronically regulable brake system, with an actuating device, in particular a brake pedal, a main brake cylinder arrangement with at least two parallel arranged piston cylinder units and a reservoir, which are connected via hydraulic lines and valves to wheel brakes, and with a servo mechanism. According to the invention an electrically drivable valve device (BV1, BV2, EA) is provided between the brake circuits allocated to the piston cylinder units (16, 17), in order to allow the regulated transfer of hydraulic fluid between the brake circuits (bypass) and the reservoir (24).Type: ApplicationFiled: October 31, 2012Publication date: January 29, 2015Applicant: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner, Christian Koeglsperger
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Patent number: 8864244Abstract: The invention relates to a hydraulic brake system comprising a master brake cylinder the at least one working chamber of which is connected to the wheel brakes of the vehicle via at least one hydraulic line, the brake piston of at least one wheel brake being adjustable by a negative pressure in the hydraulic lines to produce a brake clearance.Type: GrantFiled: December 22, 2008Date of Patent: October 21, 2014Assignee: Ipgate AGInventors: Heinz Leiber, Valentin Unterfrauner
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Publication number: 20140159474Abstract: The invention relates to a brake system having a brake booster, in which pressure medium can be guided by means of at least one switchable valve (7, 15) from at least one wheel brake (10) into an accumulator chamber (8), wherein a control device controls at least the at least one switchable valve (7, 15), wherein, in the case of a disruption of the brake booster (1), in particular if the drive (11) thereof or the gear mechanism which is connected between the drive (11) and the piston of the brake master cylinder (4) is blocked, the at least one accumulator chamber (8) serves to receive pressure medium from at least one wheel brake or at least one brake circuit and therefore to dissipate pressure in at least one wheel brake.Type: ApplicationFiled: July 15, 2011Publication date: June 12, 2014Applicant: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner, Christian Koeglsperger
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Publication number: 20130298550Abstract: 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: ApplicationFiled: September 6, 2011Publication date: November 14, 2013Applicant: IPGATE AGInventors: Heinz Leiber, Valentin Unterfrauner
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Publication number: 20130270948Abstract: The invention relates to an electric motor having a rotor and a hollow-cylindrical stator which carries exciter coils (3), the stator being connected at the end face to a stator carrier (8) of the electric motor and having stator teeth (1) which extend in an axial direction and which each have at least one pole shoe (1a, 1b), at least one coil winding (3) being wound around a stator tooth (1) in each case, there being arranged at one or both end faces (1St1, 1St2) of a stator tooth (1) and/or the pole shoes (1a, 1b) thereof an end face element (2, 6) which is/are at least partially wrapped or surrounded by the coil winding (3).Type: ApplicationFiled: December 15, 2011Publication date: October 17, 2013Applicant: CPM COMPACT POWER MOTORS GMBHInventor: Valentin Unterfrauner
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Patent number: 8400043Abstract: The invention relates to a stator with a plurality of field coils, wherein the yoke teeth, which bear the field coils, of the poles are connected with their free ends to a stator ring, and wherein adjacent pole shoes or poles are connected to one another.Type: GrantFiled: February 19, 2008Date of Patent: March 19, 2013Assignee: CPM Compact Power Motors GmbHInventors: Thomas Leiber, Valentin Unterfrauner, Nico Windecker
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Publication number: 20120007453Abstract: The invention relates to an electric motor with an outer rotor and an inner rotor, wherein the stator carrying the excitation coils is formed as a hollow cylinder and is arranged between the cup-shaped outer rotor and the inner rotor and is rigidly connected on the front to the housing or to a part of the electric motor rigidly connected to the housing, wherein the stator comprises a plurality of stator teeth which rest against supports extending in the axial direction, wherein the supports are formed by an injection moulding composition of plastics material, in particular a thermosetting plastics material which fills the space between the respectively adjacent excitation coils and the stator teeth, the supports extending into and/or through the metallic housing or a metallic part rigidly connected to the housing and rest against it.Type: ApplicationFiled: March 5, 2010Publication date: January 12, 2012Inventors: Heinz Leiber, Thomas Leiber, Valentin Unterfrauner