Patents by Inventor Jan-Peter Hoffmeister
Jan-Peter Hoffmeister 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: 10018268Abstract: A method for controlling an automatic transmission of a vehicle includes detecting a deceleration of the vehicle; detecting a cornering value of the vehicle; determining, as a function of the deceleration and as a function of the cornering value, a compensated shift-down point of a rotational speed at which shifting into a relatively low gear of the transmission occurs; and selecting a gear as a function of the compensated shift-down point.Type: GrantFiled: January 26, 2017Date of Patent: July 10, 2018Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Jan-Peter Hoffmeister, Torsten Mueller
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Publication number: 20170219093Abstract: A method for controlling an automatic transmission of a vehicle includes detecting a deceleration of the vehicle; detecting a cornering value of the vehicle; determining, as a function of the deceleration and as a function of the cornering value, a compensated shift-down point of a rotational speed at which shifting into a relatively low gear of the transmission occurs; and selecting a gear as a function of the compensated shift-down point.Type: ApplicationFiled: January 26, 2017Publication date: August 3, 2017Inventors: Jan-Peter Hoffmeister, Torsten Mueller
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Patent number: 8864624Abstract: A method for shifting a semi-automatic powershift transmission used in a motor vehicle during a manually triggered traction upshift involves the shift phases of the charging of an actuator of a clutch to be engaged, an overlap of the charging of the actuator of the clutch to be engaged and the emptying of an actuator of a clutch to be disengaged, and also involves an engine rotational speed alignment. The charging, the overlap and the engine rotational speed alignment are carried out simultaneously. In the shift process during a manually triggered shift, the driver perceives a change in engine rotational speed with only a minimal delay after the shift command.Type: GrantFiled: February 27, 2012Date of Patent: October 21, 2014Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Jan-Peter Hoffmeister, Simon Dylla
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Patent number: 8680979Abstract: In a method for outputting information to the driver of a vehicle, the degree of deviation of a current operating point or value of an operating parameter of a drive unit and/or of a drive train of the vehicle from a predetermined range and/or a preferred range for entry to a coasting phase is indicated to the driver.Type: GrantFiled: August 18, 2010Date of Patent: March 25, 2014Assignee: Dr. Ing. H.C. F. Porsche AktiengesellschaftInventor: Jan-Peter Hoffmeister
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Publication number: 20120216640Abstract: A method for shifting a semi-automatic powershift transmission used in a motor vehicle during a manually triggered traction upshift involves the shift phases of the charging of an actuator of a clutch to be engaged, an overlap of the charging of the actuator of the clutch to be engaged and the emptying of an actuator of a clutch to be disengaged, and also involves an engine rotational speed alignment. The charging, the overlap and the engine rotational speed alignment are carried out simultaneously. In the shift process during a manually triggered shift, the driver perceives a change in engine rotational speed with only a minimal delay after the shift command.Type: ApplicationFiled: February 27, 2012Publication date: August 30, 2012Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Jan-Peter Hoffmeister, Simon Dylla
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Patent number: 8226530Abstract: A method controls an automated dual clutch transmission of a motor vehicle. An actuating device, preferably arranged in the region of a steering wheel, for selecting the gear step of the shift transmission, which actuating device has a first and a second actuating element which, when actuated individually, cause an upshift or downshift of the shift transmission and, when actuated simultaneously, transfer the shift transmission into an idling state. When both actuating elements are actuated simultaneously, the force-transmitting clutch remains closed and consequently the selected gear remains engaged, and at the same time a clutch torque and/or an engine torque and, consequently, a drive torque acting on a driven wheel is reduced to approximately 0 Nm. It is thereby possible to tie up the force transmission again especially quickly after the termination of the idling state.Type: GrantFiled: May 26, 2010Date of Patent: July 24, 2012Assignee: Dr. Ing. H.C. F. Porsche AGInventors: Peter Baur, Jan-Peter Hoffmeister, Jochen Möckl
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Publication number: 20110231072Abstract: A method for triggering a signal for the separation of the drivetrain input section and drivetrain output section of a motor vehicle having an automatic clutch, characterized in that as a function of the change in clutch torque, and with a time (tSEP) being taken into consideration which can be applied and which indicates the time period required by the system from the triggering of the signal for separation of the clutch until the final separation of the drivetrain input section and drivetrain output section.Type: ApplicationFiled: March 10, 2011Publication date: September 22, 2011Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Martin ROTH, Klaus BASTIAN, Jan-Peter HOFFMEISTER, Michael SCHEU
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Publication number: 20110043346Abstract: In a method for outputting information to the driver of a vehicle, the degree of deviation of a current operating point or value of an operating parameter of a drive unit and/or of a drive train of the vehicle from a predetermined range and/or a preferred range for entry to a coasting phase is indicated to the driver.Type: ApplicationFiled: August 18, 2010Publication date: February 24, 2011Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventor: JAN-PETER HOFFMEISTER
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Publication number: 20110010062Abstract: A method adapts a drive torque that is transmitted to driven wheels of a motor vehicle, especially during cornering. A supplementary torque which arises during a gear change operation and is produced by a moment of inertia, in particular that of an engine, is transmitted to the driven wheels in dependence on a longitudinal/transverse acceleration of the motor vehicle and of a friction coefficient of the tires.Type: ApplicationFiled: July 12, 2010Publication date: January 13, 2011Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Marc Weiss, Jan-Peter Hoffmeister
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Publication number: 20110003662Abstract: A method controls an automated dual clutch transmission of a motor vehicle. An actuating device, preferably arranged in the region of a steering wheel, for selecting the gear step of the shift transmission, which actuating device has a first and a second actuating element which, when actuated individually, cause an upshift or downshift of the shift transmission and, when actuated simultaneously, transfer the shift transmission into an idling state. When both actuating elements are actuated simultaneously, the force-transmitting clutch remains closed and consequently the selected gear remains engaged, and at the same time a clutch torque and/or an engine torque and, consequently, a drive torque acting on a driven wheel is reduced to approximately 0 Nm. It is thereby possible to tie up the force transmission again especially quickly after the termination of the idling state.Type: ApplicationFiled: May 26, 2010Publication date: January 6, 2011Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Peter Baur, Jan-Peter Hoffmeister, Jochen Möckl
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Patent number: 7678021Abstract: A method and device are provided for limiting, in a first operating condition, a motor vehicle internal-combustion engine torque. The operating condition, resulting from an operation of a motor vehicle brake, when the engine torque is simultaneously demanded by a driver's intention indicator, differs from a second operating condition, in which the brake is not operated. The limiting takes place at least partially by way of a controlled reduction of an advance angle efficiency in the first operating condition in comparison to the second operating condition.Type: GrantFiled: June 7, 2006Date of Patent: March 16, 2010Assignee: Dr. Ing. h.c. F. Porsche AGInventors: Peter Baur, Moritz Martiny, Thomas Gruenter, Andreas Bader, Holger Ackermann, Jan-Peter Hoffmeister, Jochen Möckl
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Publication number: 20090192018Abstract: A method for controlling the drivetrain of a motor vehicle which has a dual-clutch transmission with a first partial transmission and a first clutch and with a second partial transmission and a second clutch. The drivetrain is operated with a gear being engaged in the first partial transmission and a gear engaged in the second partial transmission at the same time and with the first clutch and the second clutch being operated with slip at the same time. The first clutch and the second clutch are activated in a manner coordinated with one another in such a way that a rotational speed of the internal combustion engine assumes or maintains a predetermined value. A control unit is set up for carrying out the method.Type: ApplicationFiled: January 26, 2009Publication date: July 30, 2009Applicant: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFTInventors: Jan-Peter Hoffmeister, Peter Baur