Patents by Inventor Erik J. Sten

Erik J. Sten 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: 10316946
    Abstract: A drive module includes a Ravigneaux gearset, first and second input shafts, shift member, and differential. The first planet gears of the gearset can engage the first sun gear and the second planet gears, which can engage the second sun gear. The first input shaft can rotate with the second sun gear and receives torque from a first motor. A first gear can be coupled to the carrier of the Ravigneaux gearset for rotation therewith and meshingly engages the differential input. The second input shaft receives torque from a second motor and is drivingly coupled to the differential input. When the shift member is in a first position, the shift member drivingly couples the first sun gear to a first differential output. When the shift member is in a second position, the shift member couples the first sun gear to a housing to prevent rotation of the first sun gear.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 11, 2019
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Gabriel Trönnberg
  • Publication number: 20190113120
    Abstract: A drive module includes a Ravigneaux gearset, first and second input shafts, shift member, and differential. The first planet gears of the gearset can engage the first sun gear and the second planet gears, which can engage the second sun gear. The first input shaft can rotate with the second sun gear and receives torque from a first motor. A first gear can be coupled to the carrier of the Ravigneaux gearset for rotation therewith and meshingly engages the differential input. The second input shaft receives torque from a second motor and is drivingly coupled to the differential input. When the shift member is in a first position, the shift member drivingly couples the first sun gear to a first differential output. When the shift member is in a second position, the shift member couples the first sun gear to a housing to prevent rotation of the first sun gear.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 18, 2019
    Inventors: Erik J. Sten, Gabriel Trönnberg
  • Patent number: 9958049
    Abstract: A drive module that includes a Ravigneaux gearset, a first input shaft, first through fourth gears, and a differential assembly. The Ravigneaux gearset has a carrier, a first sun gear, a second sun gear, and a plurality of first planet gears that are journally supported by the carrier and drivingly coupled to the first and second sun gears. The first input shaft is coupled to the first sun gear for rotation therewith. The first gear is coupled to the first input shaft. The second gear is meshingly engaged to the first gear. The differential assembly has a differential input and first and second differential outputs. The differential input is coupled to the second gear for rotation therewith. The third gear is coupled to the carrier for rotation therewith. The fourth gear is coupled to the first differential output for rotation therewith and is meshingly engaged to the third gear.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 1, 2018
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Gabriel Trönnberg
  • Patent number: 9920834
    Abstract: A park lock having an actuator assembly for pivoting a pawl relative to a dog ring. The actuator assembly has a first linear actuator, a locking mechanism, a first biasing spring and a second linear actuator. The first linear actuator has a first output member that is movable along a movement axis that is parallel to a pivot axis of the pawl. The locking mechanism is configured to selectively couple the first output member and a cam for common movement along the movement axis. The first biasing spring is configured to move the cam along the movement axis relative to the first output member when the locking mechanism decouples the cam from the first output member. The second linear actuator is configured to move the cam along the movement axis and against the first biasing spring when the cam is decoupled from the first output member.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: March 20, 2018
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Tomas Bäfver
  • Patent number: 9719585
    Abstract: An axle assembly with a differential assembly, a housing and a transmission. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: August 1, 2017
    Assignee: e-AAM Driveline Systems AB
    Inventor: Erik J. Sten
  • Patent number: 9593741
    Abstract: The present teachings provide for a torsional damper and a transmission having a torsional damper. The torsional damper can include first and second members. The first member can include a first hub, a first outer portion, and a plurality of first spokes. The first hub can be non-rotatably coupled to an input member of the transmission. The first spokes can extend radially between the first hub and the first outer portion. The first spokes can couple the first outer portion to the first hub. The second member can include a second hub and a second outer portion. The second hub can be non-rotatably coupled to an output member of the transmission. The second outer portion can be radially outward of the second hub and can be fixedly coupled to the second hub and to the first outer portion.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 14, 2017
    Assignee: e-AAM Driveline Systems AB
    Inventors: Magnus Hederstad, Erik J. Sten
  • Patent number: 9593754
    Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 14, 2017
    Assignee: e-AAM Driveline Systems AB
    Inventor: Erik J. Sten
  • Patent number: 9512900
    Abstract: The present teachings provide for a transmission including a planetary gear set and a first displacement device. The planetary gear set can include a sun gear, ring gear, planet carrier, first planet gear and second planet gear. The sun gear, ring gear, and planet carrier can be disposed about a first axis. The first planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a second axis. The first planet gear can be axially slidable relative to the planet carrier. The second planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a third axis. The first displacement device can be configured to displace the first planet gear axially relative to the second planet gear.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 6, 2016
    Assignee: e-AAM Driveline Systems AB
    Inventors: Magnus Hederstad, Erik J. Sten
  • Publication number: 20160348734
    Abstract: A power transmitting component having a clutch with a clutch collar that is mounted on a shaft and movable between a first position, to thereby rotationally couple the shaft to another rotary component, and a second position. The clutch collar has first clutch teeth parts, which are engaged to teeth on the shaft, and second clutch teeth parts that are engagable to teeth on the rotary component. The first clutch teeth parts are configured to cooperate with the teeth on the shaft to inhibit movement of the clutch collar from the first position toward the second position so as to resist disengagement of the second clutch teeth parts from the teeth on the rotary component.
    Type: Application
    Filed: February 11, 2015
    Publication date: December 1, 2016
    Applicant: e-AAM Driveline Systems AB
    Inventor: Erik J. STEN
  • Patent number: 9500267
    Abstract: A drive module that includes an electric motor, an input pinion driven by the electric motor, a transmission driven by the input pinion, a planetary differential assembly and first and second axle shafts. The transmission has a first transmission output member. The planetary differential assembly has an input ring gear, a first output sun gear and a second output sun gear. The first and second output sun gears have different pitch diameters, different modules and a common quantity of sun gear teeth. The planetary differential assembly is configured to provide a 50-50 torque split between the first and second output sun gears. The first axle shaft is coupled to the first output sun gear for rotation therewith. The second axle shaft is coupled to the second output sun gear for rotation therewith.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 22, 2016
    Assignee: e-AAM Driveline Systems AB
    Inventors: Magnus Hederstad, Erik J. Sten
  • Publication number: 20160327121
    Abstract: The present teachings provide for a torsional damper and a transmission having a torsional damper. The torsional damper can include first and second members. The first member can include a first hub, a first outer portion, and a plurality of first spokes. The first hub can be non-rotatably coupled to an input member of the transmission. The first spokes can extend radially between the first hub and the first outer portion. The first spokes can couple the first outer portion to the first hub. The second member can include a second hub and a second outer portion. The second hub can be non-rotatably coupled to an output member of the transmission. The second outer portion can be radially outward of the second hub and can be fixedly coupled to the second hub and to the first outer portion.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 10, 2016
    Inventors: Magnus Hederstad, Erik J. Sten
  • Publication number: 20160327123
    Abstract: The present teachings provide for a transmission including a planetary gear set and a first displacement device. The planetary gear set can include a sun gear, ring gear, planet carrier, first planet gear and second planet gear. The sun gear, ring gear, and planet carrier can be disposed about a first axis. The first planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a second axis. The first planet gear can be axially slidable relative to the planet carrier. The second planet gear can meshingly engage with the sun gear and the ring gear, and can be coupled to the planet carrier for rotation relative thereto about a third axis. The first displacement device can be configured to displace the first planet gear axially relative to the second planet gear.
    Type: Application
    Filed: May 8, 2015
    Publication date: November 10, 2016
    Inventors: Magnus Hederstad, Erik J. Sten
  • Publication number: 20160252171
    Abstract: A drive module that includes an electric motor, an input pinion driven by the electric motor, a transmission driven by the input pinion, a planetary differential assembly and first and second axle shafts. The transmission has a first transmission output member. The planetary differential assembly has an input ring gear, a first output sun gear and a second output sun gear. The first and second output sun gears have different pitch diameters, different modules and a common quantity of sun gear teeth. The planetary differential assembly is configured to provide a 50-50 torque split between the first and second output sun gears. The first axle shaft is coupled to the first output sun gear for rotation therewith. The second axle shaft is coupled to the second output sun gear for rotation therewith.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 1, 2016
    Inventors: Magnus Hederstad, Erik J. Sten
  • Publication number: 20160153558
    Abstract: A park lock having an actuator assembly for pivoting a pawl relative to a dog ring. The actuator assembly has a first linear actuator, a locking mechanism, a first biasing spring and a second linear actuator. The first linear actuator has a first output member that is movable along a movement axis that is parallel to a pivot axis of the pawl. The locking mechanism is configured to selectively couple the first output member and a cam for common movement along the movement axis. The first biasing spring is configured to move the cam along the movement axis relative to the first output member when the locking mechanism decouples the cam from the first output member. The second linear actuator is configured to move the cam along the movement axis and against the first biasing spring when the cam is decoupled from the first output member.
    Type: Application
    Filed: January 28, 2016
    Publication date: June 2, 2016
    Inventors: Erik J. Sten, Tomas Bäfver
  • Patent number: 9306433
    Abstract: A drive module with a housing, an electric motor, a coolant sump, an inlet pipe and a transmission and differential assembly that is driven by the electric motor to drive a pair of output members. The electric motor is coupled to the housing and has a stator, which is fixedly coupled to the housing, and a rotor that is rotatable within the stator. The rotor has a coolant passage, which extends parallel to a rotational axis of the rotor, and a nozzle passage that intersects the coolant passage and extends radially outwardly therefrom. The coolant sump is configured to hold a coolant fluid. The inlet pipe is in fluid communication with the coolant sump and is received into the coolant passage. The inlet pipe is configured to feed the coolant fluid from the coolant sump into the coolant passage. The coolant fluid is gravity fed into the inlet pipe.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 5, 2016
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Erik N. O. Matkaselka
  • Publication number: 20160061324
    Abstract: A park lock having an actuator assembly for pivoting a pawl relative to a dog ring. The actuator assembly has a first linear actuator, a locking mechanism, a first biasing spring and a second linear actuator. The first linear actuator has a first output member that is movable along a movement axis that is parallel to a pivot axis of the pawl. The locking mechanism is configured to selectively couple the first output member and a cam for common movement along the movement axis. The first biasing spring is configured to move the cam along the movement axis relative to the first output member when the locking mechanism decouples the cam from the first output member. The second linear actuator is configured to move the cam along the movement axis and against the first biasing spring when the cam is decoupled from the first output member.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 3, 2016
    Inventors: Erik J. Sten, Tomas Bäfver
  • Patent number: 9255640
    Abstract: A park lock having an actuator assembly for pivoting a pawl relative to a dog ring. The actuator assembly has a first linear actuator, a locking mechanism, a first biasing spring and a second linear actuator. The first linear actuator has a first output member that is movable along a movement axis that is parallel to a pivot axis of the pawl. The locking mechanism is configured to selectively couple the first output member and a cam for common movement along the movement axis. The first biasing spring is configured to move the cam along the movement axis relative to the first output member when the locking mechanism decouples the cam from the first output member. The second linear actuator is configured to move the cam along the movement axis and against the first biasing spring when the cam is decoupled from the first output member.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: February 9, 2016
    Assignee: e-AAM Driveline Systems AB
    Inventors: Erik J. Sten, Tomas Bäfver
  • Publication number: 20150232070
    Abstract: A drive module with a motor, a transmission and differential assembly and a park lock. The transmission and differential assembly is driven by the output shaft of the motor. The transmission and differential assembly is operable in at least one mode for driving at least one of a first output member, a second output member and the differential case. The park lock includes a plunger that is movable between a first position and a second position. The drive module can be operated in a first mode such that the plunger is in the first position and inhibits rotation of the rotor relative to the stator to thus inhibit rotation of the first and second output members. The drive module can also be operated in a second mode such that the plunger is in the second position and does not inhibit rotation of the rotor relative to the stator so that it does not inhibit rotation of the first and second output members.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 20, 2015
    Inventor: Erik J. Sten
  • Publication number: 20150198225
    Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.
    Type: Application
    Filed: March 27, 2015
    Publication date: July 16, 2015
    Inventor: Erik J. Sten
  • Patent number: 8998765
    Abstract: An axle assembly with a motor, a differential assembly, a housing, a transmission and a reduction gearset. The transmission has a first and second planetary gearsets that have associated (i.e., first and second) ring gears, planet carriers and sun gears. The first planet carrier is coupled to a differential carrier of the differential assembly for common rotation. The second ring gear is non-rotatably coupled to the housing. The second planet carrier is coupled to the second differential output for common rotation. The second sun gear is coupled to the first sun gear for common rotation. The reduction gearset is disposed between an output shaft of the motor and the first ring gear and includes a first gear, which is coupled to the output shaft for rotation therewith, and a second gear that is coupled to the first ring gear for rotation therewith.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: e-AAM Driveline Systems AB
    Inventor: Erik J. Sten