Patents by Inventor Nils Sauvlet
Nils Sauvlet 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: 20110006623Abstract: A component housing in a motor-vehicle drive train is sealed by pressurization of the housing interior. The component is a hybrid module (1) comprising at least one electric machine provided between the combustion engine (VM) and the gearing (G) of the motor-vehicle drive train. The pressurization is achieved by a rotating component (R, RA, M, F) of the hybrid module. The rotating component is designed in a manner similar to an impeller of a centrifugal pump. Therefore, rotation of the component builds up a positive pressure (P) on the radially outer region of the rotating component in the region of the housing (GE) in the interior of the hybrid module.Type: ApplicationFiled: June 24, 2010Publication date: January 13, 2011Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFTInventors: Werner Schiek, Nils Sauvlet, Immo Stache
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Patent number: 7866424Abstract: A hybrid vehicle with an internal-combustion engine and an electric motor has a tank ventilation system that includes a fuel tank and a suction pipe leading from a filtering device, which can be regenerated, to the intake path of the internal-combustion engine. A control device is configured to actuate different valve devices for flushing the filtering device, so that ambient air can be fed to the internal-combustion engine through the filtering device and the suction pipe. In addition, the control device is configured such that, during purely electric operation of the hybrid vehicle, it connects the internal-combustion engine as a function of the loading condition of the filtering device or of the flushing gas concentration.Type: GrantFiled: January 15, 2008Date of Patent: January 11, 2011Assignee: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Thomas Rauner
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Patent number: 7806801Abstract: A drivetrain of a motor vehicle has an internal combustion engine, an electric motor, a transmission, and a torque converter with a converter bypass clutch. The drivetrain is controlled such that, during an electric operating mode in which the internal combustion engine is deactivated and the electric motor is activated, and/or during a recuperation operating mode in which the internal combustion engine is deactivated and the electric motor is operated as a generator, the converter bypass clutch is permanently closed, at least between shift processes of the transmission, in order to bypass the torque converter.Type: GrantFiled: July 30, 2007Date of Patent: October 5, 2010Assignee: Dr. Ing. h.c. F. Porsche AGInventors: Markus Göhring, Marco Fleckner, Nils Sauvlet, Dieter Kraxner
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Patent number: 7731626Abstract: A system and method for controlling a hybrid vehicle drive has a device for detecting a charging power of a heavy-duty battery for an electric motor, a device for determining at least one fuel consumption parameter for several different transmission gear positions at the detected charging power and for determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption. The determining device controls the gear position of the transmission to the determined optimized gear position by via a transmission control device.Type: GrantFiled: September 27, 2007Date of Patent: June 8, 2010Assignee: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Marco Fleckner, Dieter Kraxner, Markus Goehring
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Patent number: 7654932Abstract: A method operates a drive train the is formed of an internal combustion engine, an electric motor, a transmission and a first clutch that connects the internal combustion engine to the electric motor. During an operating state for applying a current requested torque to a transmission input with the electric motor switched on and the internal combustion engine switched off, the internal combustion engine is connected into the circuit by increasing the torque applied to the drive train by the electric motor before the internal combustion engine starts, in such a way that only the current requested torque is applied to the transmission input. Excess torque is extracted from the drive train by actuating the first clutch and applying the excess torque to the internal combustion engine in order to accelerate it. The internal combustion engine is started when its starting state is reached.Type: GrantFiled: July 30, 2007Date of Patent: February 2, 2010Assignee: Dr. Ing. h.c. F. Porsche AGInventors: Markus Göhring, Marco Fleckner, Nils Sauvlet, Dieter Kraxner
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Publication number: 20090124452Abstract: A method is provided for starting a piston engine of a hybrid drive in an electric travel state. The hybrid drive includes at least the piston engine, an electric motor, a transmission, and a clutch situated between the piston engine and the electric motor. A converter lockup clutch, which is switchable into a slip state, is also provided. A slip is set at the converter lockup clutch, and a speed of the electric motor is then increased. The speed and the torque either do not change or only change in a predefined range at the output side of the converter lockup clutch. The clutch is closed to transmit a torque pulse, so that a first top dead center of the piston of the piston engine may be overcome. A predefined slip is then set at the clutch.Type: ApplicationFiled: January 8, 2008Publication date: May 14, 2009Applicant: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Martin FUECHTNER, Dieter KRAXNER, Markus GOEHRING, Marco FLECKNER, Nils SAUVLET
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Publication number: 20080245586Abstract: A device and method for heating a positive crankcase ventilation system in a hybrid vehicle includes a ventilation device, provided on a crankcase, and a supercooling cycle for cooling power electronics for an electric motor of the hybrid vehicle. The ventilation device is heatable by way of the supercooling cycle in order to prevent icing of the ventilation device.Type: ApplicationFiled: March 6, 2008Publication date: October 9, 2008Applicant: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Dieter Kraxner, Markus Goehring
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Publication number: 20080179121Abstract: A hybrid vehicle with an internal-combustion engine and an electric motor has a tank ventilation system that includes a fuel tank and a suction pipe leading from a filtering device, which can be regenerated, to the intake path of the internal-combustion engine. A control device is configured to actuate different valve devices for flushing the filtering device, so that ambient air can be fed to the internal-combustion engine through the filtering device and the suction pipe. In addition, the control device is configured such that, during purely electric operation of the hybrid vehicle, it connects the internal-combustion engine as a function of the loading condition of the filtering device or of the flushing gas concentration.Type: ApplicationFiled: January 15, 2008Publication date: July 31, 2008Applicant: Dr. Ing. h. c. F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Thomas Rauner
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Publication number: 20080129049Abstract: A method is employed for starting an internal combustion engine in a hybrid vehicle drive which is driven by an electric motor. A speed of the internal combustion engine is adjusted to a target speed. The internal combustion engine speed exceeds the target speed over a predefined time by a predetermined speed differential.Type: ApplicationFiled: November 19, 2007Publication date: June 5, 2008Applicant: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Marco Fleckner, Markus Goehring, Dieter Kraxner
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Publication number: 20080125927Abstract: The invention relates to a method for operating a drive train (1) comprising an internal combustion engine (2), an electric motor (10) and an automatic transmission (11), in which, during an operating state with the electric motor (10) switched on and the internal combustion engine (2) switched off, the internal combustion engine (2) is engaged by a transmission of torque to the internal combustion engine (2), used to accelerate the internal combustion engine (2), being coupled in time with a downshift operation in the automatic transmission (11).Type: ApplicationFiled: July 30, 2007Publication date: May 29, 2008Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Markus Gohring, Marco Fleckner, Nils Sauvlet, Dieter Kraxner
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Publication number: 20080081729Abstract: A system and method for controlling a hybrid vehicle drive has a device for detecting a charging power of a heavy-duty battery for an electric motor, a device for determining at least one fuel consumption parameter for several different transmission gear positions at the detected charging power and for determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption. The determining device controls the gear position of the transmission to the determined optimized gear position by via a transmission control device.Type: ApplicationFiled: September 27, 2007Publication date: April 3, 2008Applicant: Dr. Ing. h.c.F. Porsche AktiengesellschaftInventors: Nils Sauvlet, Marco Fleckner, Dieter Kraxner, Markus Goehring
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Publication number: 20080032856Abstract: A drivetrain of a motor vehicle has an internal combustion engine, an electric motor, a transmission, and a torque converter with a converter bypass clutch. The drivetrain is controlled such that, during an electric operating mode in which the internal combustion engine is deactivated and the electric motor is activated, and/or during a recuperation operating mode in which the internal combustion engine is deactivated and the electric motor is operated as a generator, the converter bypass clutch is permanently closed, at least between shift processes of the transmission, in order to bypass the torque converter.Type: ApplicationFiled: July 30, 2007Publication date: February 7, 2008Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Markus Gohring, Marco Fleckner, Nils Sauvlet, Dieter Kraxner
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Publication number: 20080032857Abstract: A method operates a drive train the is formed of an internal combustion engine, an electric motor, a transmission and a first clutch that connects the internal combustion engine to the electric motor. During an operating state for applying a current requested torque to a transmission input with the electric motor switched on and the internal combustion engine switched off, the internal combustion engine is connected into the circuit by increasing the torque applied to the drive train by the electric motor before the internal combustion engine starts, in such a way that only the current requested torque is applied to the transmission input. Excess torque is extracted from the drive train by actuating the first clutch and applying the excess torque to the internal combustion engine in order to accelerate it. The internal combustion engine is started when its starting state is reached.Type: ApplicationFiled: July 30, 2007Publication date: February 7, 2008Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Markus Gõhring, Marco Fleckner, Nils Sauvlet, Dieter Kraxner
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Publication number: 20080029320Abstract: A method and a device for controlling a hybrid vehicle drive. The device contains a multiplicity of control parameter sets with different set point charge states for a high performance battery of the electric motor. The set point charge states are assigned to a respective operating mode of the vehicle. A definition device for defining a current operating mode of the vehicle, as a result of which a control parameter set which corresponds to the defined current operating mode of the vehicle can be used to control a charge mode of the high performance battery of the electric motor with a corresponding set point charge state.Type: ApplicationFiled: July 30, 2007Publication date: February 7, 2008Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Marco Fleckner, Nils Sauvlet, Markus Gohring, Dieter Kraxner
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Publication number: 20080029319Abstract: A method and a device control a hybrid vehicle drive. The device contains a multiplicity of control parameter sets having different recovery torques for a conversion control device which sets a recovery torque of the electric motor in an overrun phase, which recovery torques are assigned a respective driving mode indicator. A definition device is provided for defining a current driving mode indicator, as a result of which a control parameter set corresponding to the defined current driving mode indicator can be used to control the conversion control device in an overrun phase of the hybrid vehicle drive.Type: ApplicationFiled: July 30, 2007Publication date: February 7, 2008Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Marco Fleckner, Markus Gohring, Dieter Kraxner, Nils Sauvlet