Patents by Inventor Martin Fuechtner

Martin Fuechtner 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).

  • Patent number: 9707954
    Abstract: A method is provided for operating a hybrid drive train of a hybrid vehicle. The drive train has an internal combustion engine, a first electric machine, a transmission with an input shaft, a separating element and a first axle. The internal combustion engine can be connected to the first electric machine via the separating element. When the separating element is opened and the internal combustion engine is stationary, a difference in rotational speed occurs at the separating element between the internal combustion engine and the rotating first electric machine. The separating element is opened below and up to a maximum permissible difference in rotational speed at the separating element to drive the hybrid vehicle purely electrically by the first electric machine or to brake the vehicle or to coast. Above the maximum permissible difference in rotational speed the separating element and the first electric machine are separated from one another.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 18, 2017
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 9566852
    Abstract: A drive train (1) of an all-electrically drivable motor vehicle has a first axle (2) with a differential (6), and two electric machines (15, 16). The first axle (2) can be driven by the electric machines (15, 16) via a transmission (17). One (16) of the two electric machines (15, 16) can be decoupled from the transmission (17) via a switchable clutch (23). Different driving conditions of the motor vehicle operated by the drive train can be executed with a particularly good efficiency.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: February 14, 2017
    Assignee: Dr. Ing h.c. F. Porsche Aktiengesellschaft
    Inventors: Daniel Knoblauch, Martin Fuechtner
  • Patent number: 9458851
    Abstract: An electric machine (1) for a hybrid or electric vehicle has an external rotor and a stator (2) within the rotor (3). The rotor (3) has a rotor carrier (4), rotor plates (5) and permanent magnets (6). The rotor carrier (4) has a first, radially extending carrier section (7) and a second axially extending carrier section (8). The second carrier section (8) bears the rotor plates (5) and permanent magnets (6). The stator (2) has stator plates (9) and wire windings (10) that form winding heads (11, 12) extending axially on both sides over the stator plates (9). An impeller wheel (14) is connected to the rotor carrier (4) and is between the winding heads (11) on an axial side of the stator (2), and the second carrier section (8). The electric machine provides high power in a small axial extent with optimum air cooling of the rotor and stator.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: October 4, 2016
    Assignee: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Martin Fuechtner, Harald Raiser
  • Patent number: 9102233
    Abstract: A drive train (2) of a purely electrically drivable motor vehicle has at least one electric machine (13, 14), a transmission (21), a planetary differential (22) and a drivable axle (2). The axle (2) can be driven by the electric machine (13, 14) via the transmission (21) and the differential (22). The planetary differential (22) has an input (32, 33) connected to the electric machine (13, 14), a first output (28, 34, 35, 36, 37, 38) connected to a first section (4) of the drivable axle (2), and a second output (30, 31, 42) connected to a second section (5) of the drivable axle (2). Rotational axes of the input and outputs of the planetary differential (22) form an intermediate axis (53) arranged between an axle (15) of a rotor (17) of the electric machine (13, 14) and the drivable axle (2).
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: August 11, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Daniel Knoblauch, Martin Fuechtner
  • Patent number: 9096143
    Abstract: A temperature control system for a drive device of a motor vehicle includes a first temperature control circuit, which is coupled to an electric drive apparatus of the drive device; a second temperature control circuit, which is separate from the first temperature control circuit and is coupled to an electric energy store of the drive device; and a heat exchanger for optionally transferring heat between the first temperature control circuit and the second temperature control circuit. A method for operating a temperature control system for a drive device of a motor vehicle includes optional transmission of heat between the first temperature control circuit and the second temperature control circuit by way of a heat exchanger in such a way that heat is extracted from the first temperature control circuit and the second temperature control circuit.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: August 4, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Füchtner
  • Patent number: 9045131
    Abstract: A method and a device for controlling a drive train of a hybrid vehicle (HEF), which can be driven by an internal combustion engine (BKA), respectively individually or together with an electric machine (EA), which includes an electrical energy store (ES), power electronics (LE) and a motor/generator unit (MGE). Depending on a first or second position of an operator control (BV), the drive train (A) is operated in a first operating mode (BM1) corresponding to a boost preparatory phase or in a second operating mode (BM2) corresponding to a boost phase. In the first operating mode (BM1) the electrical energy store (ES) is charged by operating the motor/generator unit (MGE), as a generator, and in the second operating mode (BM2) a boost function of the electric machine (EA) is called by operating the motor/generator unit (MGE), together with the internal combustion engine (BKA), as a motor.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 2, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Füchtner
  • Patent number: 9045032
    Abstract: A drive train of a motor vehicle has a front axle (10) and a rear axle (13). An internal combustion engine (16) is positioned behind the front axle (10) and in front of the rear axle (13) in a mid-engine arrangement. A transmission (17) enables the internal combustion engine to drive the rear axle (13). An electric drive (18) is associated with the front axle (10) and has at least two electric machines that can drive the front axle (10). A further electric drive (18) is associated with the rear axle (13) and can drive the rear axle (13) in addition to or alternatively to the internal combustion engine (16).
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: June 2, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Martin Fuechtner, Joerg Meyer-Ebeling
  • Patent number: 8991283
    Abstract: A drive system (2) for a motor vehicle (1) has a transmission (11) for driving at least one drive axle (13, 14) of the motor vehicle (1). An internal combustion engine (3) optionally is connected operatively to the transmission (11) or decoupled therefrom. A first electric machine (17) optionally is connected operatively to the at least one drive axle (13, 14) or to an output shaft (39) of the transmission (11) or decoupled therefrom. A second electric machine (19) is connected operatively to the internal combustion engine (3).
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 31, 2015
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Publication number: 20150021109
    Abstract: A drive train (2) of a purely electrically drivable motor vehicle has at least one electric machine (13, 14), a transmission (21), a planetary differential (22) and a drivable axle (2). The axle (2) can be driven by the electric machine (13, 14) via the transmission (21) and the differential (22). The planetary differential (22) has an input (32, 33) connected to the electric machine (13, 14), a first output (28, 34, 35, 36, 37, 38) connected to a first section (4) of the drivable axle (2), and a second output (30, 31, 42) connected to a second section (5) of the drivable axle (2). Rotational axes of the input and outputs of the planetary differential (22) form an intermediate axis (53) arranged between an axle (15) of a rotor (17) of the electric machine (13, 14) and the drivable axle (2).
    Type: Application
    Filed: February 7, 2013
    Publication date: January 22, 2015
    Inventors: Daniel Knoblauch, Martin Fuechtner
  • Publication number: 20140332301
    Abstract: A drive train (1) of an all-electrically drivable motor vehicle has a first axle (2) with a differential (6), and two electric machines (15, 16). The first axle (2) can be driven by the electric machines (15, 16) via a transmission (17). One (16) of the two electric machines (15, 16) can be decoupled from the transmission (17) via a switchable clutch (23). Different driving conditions of the motor vehicle operated by the drive train can be executed with a particularly good efficiency.
    Type: Application
    Filed: October 17, 2012
    Publication date: November 13, 2014
    Inventors: Daniel Knoblauch, Martin Fuechtner
  • Publication number: 20140030123
    Abstract: An electric machine (1) for a hybrid or electric vehicle has an external rotor and a stator (2) within the rotor (3). The rotor (3) has a rotor carrier (4), rotor plates (5) and permanent magnets (6). The rotor carrier (4) has a first, radially extending carrier section (7) and a second axially extending carrier section (8). The second carrier section (8) bears the rotor plates (5) and permanent magnets (6). The stator (2) has stator plates (9) and wire windings (10) that form winding heads (11, 12) extending axially on both sides over the stator plates (9). An impeller wheel (14) is connected to the rotor carrier (4) and is between the winding heads (11) on an axial side of the stator (2), and the second carrier section (8). The electric machine provides high power in a small axial extent with optimum air cooling of the rotor and stator.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 30, 2014
    Inventors: Martin Fuechtner, Harald Raiser
  • Patent number: 8608615
    Abstract: A drive system has a dual clutch transmission with two component transmissions, a dual clutch and an output shaft. The two component transmissions have a common main shaft and each has one component transmission input shaft that can be connected operatively to the main shaft. The main shaft and the output shaft are connected operatively to one another. A combustion engine selectively can be connected operatively to one of the component transmissions via the dual clutch and one of the component transmission input shafts to drive the output shaft via the main shaft. An electric machine can be connected positively and operatively to one of the component transmission input shafts and/or to the output shaft, or can be connected positively and operatively to one of the component transmission input shafts and/or to the main shaft.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: December 17, 2013
    Assignee: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 8528682
    Abstract: The invention relates to a hybrid drive-train of a motor vehicle (1) equipped with a mechanical all-wheel drive, said drive-train comprising a combustion engine (5) which can be drive-connected to two axles (5) by means of a transmission (6), and a transversally installed electric machine arrangement (10). In order to improve the hybrid drive-train, particularly with regard to an operational mode that is highly dynamic, the electric machine arrangement is arranged approximately central in relation to the transverse direction of the vehicle.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: September 10, 2013
    Assignee: Dr. Ing. H.C.F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 8499868
    Abstract: A drive system (1) for a drive axle (2) of a motor vehicle has an electric machine (16) that at least partially encloses the drive axle (2) and that is capable of driving the drive axle (2). The electric machine (16) is coupled in a shiftable fashion to the drive axle (2) or is decoupled therefrom.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 6, 2013
    Assignee: Dr. Ing. H.C.F. Porsche Aktiengesellschaft
    Inventors: Martin Fuechtner, Simon Singer
  • Patent number: 8480523
    Abstract: A hybrid drive train has an internal combustion engine (2), an electric machine (30), a clutch device (10) and a variable speed transmission (5) via which a transmission input shaft (13) can be coupled to an output shaft (6), and having a planetary gear mechanism (33). To improve the properties of a hybrid vehicle having the hybrid drive train with respect to energy consumption and/or a sporty driving style, the electric machine (30) is coupled to the transmission input shaft (13) and the output shaft (6) via the planetary gear mechanism (33).
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: July 9, 2013
    Assignee: Dr. Ing. H.C.F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 8439147
    Abstract: The invention relates to a motor vehicle, comprising a body and a drive train, wherein the drive train comprises a front axle (10), a rear axle (13), a drive unit, and a gearbox (20), wherein the drive unit is designed as a hybrid drive having an internal combustion engine (16) and at least one electric machine (17, 18, 19), wherein the internal combustion engine (16) can be supplied with fuel from at least one fuel tank (21), and wherein the or each electric machine (17, 18, 19) can be supplied with electrical energy from at least one electrical energy store (22) in motorized operation, and wherein the or each fuel tank (21) and the or each electrical energy store (22) are positioned in a common section (23) of the body.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 14, 2013
    Assignee: Dr. Ing. H.C.F. Porsche Aktiegesellschaft
    Inventors: Martin Fuechtner, Joerg Meyer-Ebeling
  • Publication number: 20130087400
    Abstract: The invention relates to a hybrid drive-train of a motor vehicle (1) equipped with a mechanical all-wheel drive, said drive-train comprising a combustion engine (5) which can be drive-connected to two axles (5) by means of a transmission (6), and a transversally installed electric machine arrangement (10). In order to improve the hybrid drive-train, particularly with regard to an operational mode that is highly dynamic, the electric machine arrangement is arranged approximately central in relation to the transverse direction of the vehicle.
    Type: Application
    Filed: April 1, 2011
    Publication date: April 11, 2013
    Applicant: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Martin Fuechtner
  • Patent number: 8360183
    Abstract: A vehicle has an internal combustion engine, an electric drive device and a transmission with two component transmissions that can be selected simultaneously. Torque can be transmitted from the electric drive device and/or the internal combustion engine to at least one axle of the vehicle, and a torque can be transmitted from the axle to the electric drive device and/or the internal combustion engine. The internal combustion engine is adjusted from a deactivated state to an energized state. Torque is transmitted to the internal combustion engine by the axle and/or the electric drive device via one of two shifting elements to increase rotational speed of the internal combustion engine. The internal combustion engine is adjusted to a target rotational speed via one of the shifting elements. The connection between the internal combustion engine and the axle is produced via one of the shifting elements upon reaching the target rotational speed.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: January 29, 2013
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Nils Sauvlet, Joerg-Michael Birkhold, Martin Fuechtner
  • Publication number: 20120312621
    Abstract: The invention relates to a motor vehicle, comprising a body and a drive train, wherein the drive train comprises a front axle (10), a rear axle (13), a drive unit, and a gearbox (20), wherein the drive unit is designed as a hybrid drive having an internal combustion engine (16) and at least one electric machine (17, 18, 19), wherein the internal combustion engine (16) can be supplied with fuel from at least one fuel tank (21), and wherein the or each electric machine (17, 18, 19) can be supplied with electrical energy from at least one electrical energy store (22) in motorized operation, and wherein the or each fuel tank (21) and the or each electrical energy store (22) are positioned in a common section (23) of the body.
    Type: Application
    Filed: December 9, 2010
    Publication date: December 13, 2012
    Applicant: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Martin Fuechtner, Joerg Meyer-Ebeling
  • Publication number: 20120312620
    Abstract: The invention relates to a drive train of a motor vehicle, comprising a front axle (10), a rear axle (13), an internal combustion engine (16), which is positioned behind the front axle (10) and in front of the rear axle (13) in a mid-engine arrangement, a transmission (17), by means of which the internal combustion engine drives the rear axle (13), and an electric drive (18), which is associated with the front axle (10) and which comprises at least two electric machines and by means of which the front axle (10) can be driven, wherein a further electric drive (18), by means of which the rear axle (13) can be driven in addition to or alternatively to the internal combustion engine (16), is associated with the rear axle (13).
    Type: Application
    Filed: December 9, 2010
    Publication date: December 13, 2012
    Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: Martin Fuechtner, Joerg Meyer-Ebeling