Patents by Inventor Armin Haugg
Armin Haugg 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: 11421714Abstract: A hydraulic control unit (4) for an automatic transmission of a motor vehicle includes a volumetric flow rate control valve (49). The hydraulic control unit (4) is configured for delivering hydraulic fluid to an inlet (59) of the volumetric flow rate control valve (49). An outlet (31, 71) of the volumetric flow rate control valve (18, 49) is connected to a torque converter torus of the automatic transmission. In addition, the volumetric flow rate control valve (59) is configured for directing the hydraulic fluid across an orifice (66), so that the pressure of the hydraulic fluid is reduced and a constant flow of hydraulic fluid is feedable to a torque converter torus.Type: GrantFiled: March 31, 2020Date of Patent: August 23, 2022Assignee: ZF FRIEDRICHSHAFEN AGInventors: Alexander Haberstock, Thilo Schmidt, Armin Haugg, Christian Schupp, Markus Herrmann
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Patent number: 11022157Abstract: A cooling prioritization valve (5) for a hydraulic system (4) of a motor vehicle transmission (3) includes a valve housing (6), a valve slide (7), an inlet (18), an outlet (15), and a further outlet (21). A secondary system pressure circuit (39) of the hydraulic system (4) can be connected to the inlet (18), a cooler (54) can be connected to the outlet (15) or to the further outlet (21), and a suction loading (44) can be connected to the outlet (15) or to the further outlet (21). In a starting position, the inlet (18) is not connected either to the outlet (15) or to the further outlet (21). In a first control position, the inlet (18) is connected to the outlet (15). In a second control position, the inlet (18) is connected to the outlet (15) and the further outlet (21).Type: GrantFiled: November 8, 2019Date of Patent: June 1, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventors: Alexander Haberstock, Armin Haugg, Thilo Schmidt, Markus Herrmann
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Patent number: 11022218Abstract: A parking lock for a transmission of a motor vehicle having an interlocking element of a connecting rod that is biased against a parking lock disengagement direction to bring and keep a ratchet tooth of a locking pawl in engagement with a tooth space of a parking interlock gear during an engagement of the parking lock. The connecting rod is provided a spring force acting in a parking lock engagement direction from an inserting spring and a compressive force acting in the parking lock disengagement direction from a hydraulically actuatable actuator having first piston pressurizable to disengage the parking lock. A detent device actuatable by an electromagnet mechanically fixes the first piston in either a latched or unlatched piston position associated with an engaged or disengaged position of the parking lock, respectively. A system determines a current engagement position of the detent device by assessing an inductance at the electromagnet.Type: GrantFiled: March 1, 2019Date of Patent: June 1, 2021Assignee: ZF FRIEDRICHSHAFEN AGInventors: Thomas Schwegler, Florian Weinl, Michael Jud, Armin Haugg, Julia Klein
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Patent number: 10794468Abstract: A hydraulic system for a transmission of a motor vehicle, the system having first and second pumps for conveying hydraulic fluid into primary and/or system-pressure circuits so that an intended pressure prevails in the circuits. The system further including liquid retention means preventing a flow of hydraulic fluid conveyed by the second pump from being conducted through the first pump when the first pump is not conveying and the second pump is conveying, and preventing a flow of hydraulic fluid conveyed by the first pump from being conducted through the second pump when the second pump is not conveying and the first pump is conveying. The system additionally including a sailing-mode lubricating valve for controlling, by an open-loop system, a flow rate of hydraulic fluid conveyed by the second pump into the primary and/or secondary system-pressure circuits such that the intended pressure is set in the system-pressure circuits.Type: GrantFiled: February 17, 2017Date of Patent: October 6, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Markus Herrmann, Thilo Schmidt, Armin Haugg, Alexander Haberstock, Christian Popp
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Publication number: 20200309159Abstract: A hydraulic control unit (4) for an automatic transmission of a motor vehicle includes a volumetric flow rate control valve (49). The hydraulic control unit (4) is configured for delivering hydraulic fluid to an inlet (59) of the volumetric flow rate control valve (49). An outlet (31, 71) of the volumetric flow rate control valve (18, 49) is connected to a torque converter torus of the automatic transmission. In addition, the volumetric flow rate control valve (59) is configured for directing the hydraulic fluid across an orifice (66), so that the pressure of the hydraulic fluid is reduced and a constant flow of hydraulic fluid is feedable to a torque converter torus.Type: ApplicationFiled: March 31, 2020Publication date: October 1, 2020Inventors: Alexander Haberstock, Thilo Schmidt, Armin Haugg, Christian Schupp, Markus Herrmann
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Patent number: 10788126Abstract: An actuation arrangement (23) including an actuating device for actuating a transmission parking lock (1). The actuating device having a piston (2) movable into an engaged position (E), which engages the transmission parking lock (1), and into a disengaged position (A), which disengages the transmission parking lock (1). The actuating device further has a cylinder (3) including a cavity (4), in which the piston (2) is arranged and into which transmission oil is supplied to move the piston (2), and a locking unit (5) configured for selectively fixing the piston (2). The actuation arrangement further includes a valve (13). When the valve (13) is in a first valve position, transmission oil is supplied to the transmission shift element (12) through a first line (14), to actuate the transmission shift element (12), and into the cavity (4) through the second line (15), to actuate the transmission parking lock (1).Type: GrantFiled: June 28, 2018Date of Patent: September 29, 2020Assignee: ZF FRIEDRICHSHAFEN AGInventors: Armin Haugg, Thilo Schmidt
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Publication number: 20200149562Abstract: A cooling prioritization valve (5) for a hydraulic system (4) of a motor vehicle transmission (3) includes a valve housing (6), a valve slide (7), an inlet (18), an outlet (15), and a further outlet (21). A secondary system pressure circuit (39) of the hydraulic system (4) can be connected to the inlet (18), a cooler (54) can be connected to the outlet (15) or to the further outlet (21), and a suction loading (44) can be connected to the outlet (15) or to the further outlet (21). In a starting position, the inlet (18) is not connected either to the outlet (15) or to the further outlet (21). In a first control position, the inlet (18) is connected to the outlet (15). In a second control position, the inlet (18) is connected to the outlet (15) and the further outlet (21).Type: ApplicationFiled: November 8, 2019Publication date: May 14, 2020Inventors: Alexander Haberstock, Armin Haugg, Thilo Schmidt, Markus Herrmann
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Publication number: 20190271395Abstract: A parking lock for a transmission of a motor vehicle having an interlocking element of a connecting rod that is biased against a parking lock disengagement direction to bring and keep a ratchet tooth of a locking pawl in engagement with a tooth space of a parking interlock gear during an engagement of the parking lock. The connecting rod is provided a spring force acting in a parking lock engagement direction from an inserting spring and a compressive force acting in the parking lock disengagement direction from a hydraulically actuatable actuator having first piston pressurizable to disengage the parking lock. A detent device actuatable by an electromagnet mechanically fixes the first piston in either a latched or unlatched piston position associated with an engaged or disengaged position of the parking lock, respectively. A system determines a current engagement position of the detent device by assessing an inductance at the electromagnet.Type: ApplicationFiled: March 1, 2019Publication date: September 5, 2019Inventors: Thomas Schwegler, Florian Weinl, Michael Jud, Armin Haugg, Julia Klein
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Publication number: 20190093756Abstract: A hydraulic system for a transmission of a motor vehicle, the system having first and second pumps for conveying hydraulic fluid into primary and/or system-pressure circuits so that an intended pressure prevails in the circuits. The system further including liquid retention means preventing a flow of hydraulic fluid conveyed by the second pump from being conducted through the first pump when the first pump is not conveying and the second pump is conveying, and preventing a flow of hydraulic fluid conveyed by the first pump from being conducted through the second pump when the second pump is not conveying and the first pump is conveying. The system additionally including a sailing-mode lubricating valve for controlling, by an open-loop system, a flow rate of hydraulic fluid conveyed by the second pump into the primary and/or secondary system-pressure circuits such that the intended pressure is set in the system-pressure circuits.Type: ApplicationFiled: February 17, 2017Publication date: March 28, 2019Inventors: Markus Herrmann, Thilo Schmidt, Armin Haugg, Alexander Haberstock, Christian Popp
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Publication number: 20190003589Abstract: An actuation arrangement (23) including an actuating device for actuating a transmission parking lock (1). The actuating device having a piston (2) movable into an engaged position (E), which engages the transmission parking lock (1), and into a disengaged position (A), which disengages the transmission parking lock (1). The actuating device further has a cylinder (3) including a cavity (4), in which the piston (2) is arranged and into which transmission oil is supplied to move the piston (2), and a locking unit (5) configured for selectively fixing the piston (2). The actuation arrangement further includes a valve (13). When the valve (13) is in a first valve position, transmission oil is supplied to the transmission shift element (12) through a first line (14), to actuate the transmission shift element (12), and into the cavity (4) through the second line (15), to actuate the transmission parking lock (1).Type: ApplicationFiled: June 28, 2018Publication date: January 3, 2019Inventors: Armin Haugg, Thilo Schmidt