Patents by Inventor Stephen G. Crain

Stephen G. Crain 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: 10870465
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 22, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Derek D. Zimney
  • Patent number: 10793226
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 6, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Markus Hoffet, Peter Erasmus, Joshua J. Stevens, Joseph D. Tharaldson, Brad W. Teubner
  • Patent number: 10780949
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: September 22, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Brad W. Teubner, Joshua J. Stevens, Joseph D. Tharaldson, Markus Hoffet, Lawrence J. Hosaluk, Matthew D. Reeves, Peter Erasmus, Chad A. Dale
  • Patent number: 10731620
    Abstract: A system for starting an engine of a vehicle has a fuel injector injecting fuel into a closed intake port to form an air fuel mixture. The system also includes an actuator rotating a crankshaft in a first direction to open the intake port by moving a piston within a cylinder coupled to the crankshaft. A combustion chamber defines between the cylinder and the port receiving the air fuel mixture through the intake port. The actuator rotates the crankshaft in a second direction to close the intake port. A spark plug ignites the air fuel mixture to start the engine. The engine also includes many other disclosed features.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 4, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Dallas J. Blake, James A. Barczak, Lawrence J. Hosaluk, Darren J. Hedlund, Oliver J. Young, Matthew D. Reeves, Joseph D. Tharaldson, Chad A. Dale, Stephen G. Crain, Trevor F. Rhodes
  • Patent number: 10707741
    Abstract: A generator to generate electrical power from rotational motion and a method of making the generator. The generator includes a rotor including a plurality of magnetic poles; and a stator including a magnetic core comprising a body and teeth extending radially from the body and defining a plurality of slots therebetween. The stator also includes a first three-phase winding and a second three-phase winding, each of the first three-phase winding and the second three phase winding including first, second, and third phase windings comprised of coils individually wound around each of the teeth. At least two coils of each of the first, second, and third phase windings of the first three-phase winding and the second three phase winding are individually wound on teeth positioned next to each other.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 7, 2020
    Assignee: Polaris Industries Inc.
    Inventor: Stephen G. Crain
  • Patent number: 10647324
    Abstract: Vehicles including a plurality of front and rear ground engaging members, a front driveline operatively coupled to a first power source, a rear driveline operatively coupled to a second power source, at least one controller operatively coupled to the first drive system and the second drive system are disclosed. The vehicles may further include a torque request input adapted to be actuatable by an operator of the vehicle. The torque request input may provide an indication of a requested torque to the at least one controller. The at least one controller may, based on the requested torque, command a first output of the first drive system to the at least one front ground engaging member and a second output of the second drive system to the at least one rear ground engaging member. Vehicle drive control systems are also disclosed. Methods of controlling torque and battery management are also disclosed.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: May 12, 2020
    Assignee: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Peter J. Erasmus, David F. Buehler, Markus Hoffet, Kevin P. Blair
  • Publication number: 20190214921
    Abstract: A direct-current (DC) power generation system for a vehicle, a boosting shunt regulator, and a method of regulating the output of an AC generator with the boosting shunt regulator are provided. The boosting shunt regulator includes gated power switches electrically coupled between AC generator contacts and output contacts. A shunt operates the power switches at duty cycles selected to boost the AC voltages output by the AC generator.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 11, 2019
    Inventors: Stephen G. Crain, Markus Hoffet
  • Publication number: 20190136818
    Abstract: A system for starting an engine of a vehicle has a fuel injector injecting fuel into a closed intake port to form an air fuel mixture. The system also includes an actuator rotating a crankshaft in a first direction to open the intake port by moving a piston within a cylinder coupled to the crankshaft. A combustion chamber defines between the cylinder and the port receiving the air fuel mixture through the intake port. The actuator rotates the crankshaft in a second direction to close the intake port. A spark plug ignites the air fuel mixture to start the engine. The engine also includes many other disclosed features.
    Type: Application
    Filed: September 28, 2018
    Publication date: May 9, 2019
    Applicant: Polaris Industries Inc.
    Inventors: Dallas J. BLAKE, James A. BARCZAK, Lawrence J. HOSALUK, Darren J. HEDLUND, Oliver J. YOUNG, Matthew D. REEVES, Joseph D. THARALDSON, Chad A. DALE, Stephen G. CRAIN, Trevor F. RHODES
  • Publication number: 20190028013
    Abstract: A generator to generate electrical power from rotational motion and a method of making the generator. The generator includes a rotor including a plurality of magnetic poles; and a stator including a magnetic core comprising a body and teeth extending radially from the body and defining a plurality of slots therebetween. The stator also includes a first three-phase winding and a second three-phase winding, each of the first three-phase winding and the second three phase winding including first, second, and third phase windings comprised of coils individually wound around each of the teeth. At least two coils of each of the first, second, and third phase windings of the first three-phase winding and the second three phase winding are individually wound on teeth positioned next to each other.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 24, 2019
    Applicant: Polaris Industries Inc.
    Inventor: Stephen G. Crain
  • Publication number: 20180086343
    Abstract: Vehicles including a plurality of front and rear ground engaging members, a front driveline operatively coupled to a first power source, a rear driveline operatively coupled to a second power source, at least one controller operatively coupled to the first drive system and the second drive system are disclosed. The vehicles may further include a torque request input adapted to be actuatable by an operator of the vehicle. The torque request input may provide an indication of a requested torque to the at least one controller. The at least one controller may, based on the requested torque, command a first output of the first drive system to the at least one front ground engaging member and a second output of the second drive system to the at least one rear ground engaging member. Vehicle drive control systems are also disclosed. Methods of controlling torque and battery management are also disclosed.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 29, 2018
    Inventors: Stephen G. Crain, Peter J. Erasmus, David F. Buehler, Markus Hoffet, Kevin P. Blair
  • Publication number: 20180086419
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 29, 2018
    Inventors: Stephen G. Crain, Derek D. Zimney
  • Patent number: 9644969
    Abstract: An interactive system for use in connection with recreational vehicle usage includes a server system, including an off-road trail database containing trail data, trail condition information, and points-of-interest information, as well as a trip mapping system accessible by any of a plurality of riders, allowing a rider to create a route based on the data in the off-road trip database. The server system further includes a trail maintenance interface accessible by users affiliated with an authorized group to edit the trail data, trail condition information, and points-of-interest information associated with the authorized group. The server system includes a location data management system configured to receive location data, allowing a rider to publish location information to one or more other riders, and a user feedback interface configured to receive trip data from riders for publication, including information describing an actual route and user data associated with that route.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: May 9, 2017
    Assignee: Polaris Industries Inc.
    Inventors: David J. Koenig, Joseph D. Tharaldson, Adam C. Koosmann, Christopher G. Wolf, William C. Fisher, Kim A. Weckert, John W. Callahan, Daren W. Herman, Todd L. Frostad, Gary L. Gustafon, Stephen G. Crain, Jonathan P. Oakden-Graus
  • Publication number: 20160339997
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Application
    Filed: May 20, 2016
    Publication date: November 24, 2016
    Applicant: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Markus Hoffet, Peter Erasmus, Joshua J. Stevens, Joseph D. Tharaldson, Brad W. Teubner
  • Publication number: 20160339857
    Abstract: A power generation system is provided including a power boost regulator operative to provide load matched voltage operation of an AC power source.
    Type: Application
    Filed: May 20, 2016
    Publication date: November 24, 2016
    Applicant: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Brad W. Teubner, Joshua J. Stevens, Joseph D. Tharaldson, Markus Hoffet, Lawrence J. Hosaluk, Matthew D. Reeves, Peter Erasmus, Chad A. Dale
  • Publication number: 20160003621
    Abstract: An interactive system for use in connection with recreational vehicle usage includes a server system, including an off-road trail database containing trail data, trail condition information, and points-of-interest information, as well as a trip mapping system accessible by any of a plurality of riders, allowing a rider to create a route based on the data in the off-road trip database. The server system further includes a trail maintenance interface accessible by users affiliated with an authorized group to edit the trail data, trail condition information, and points-of-interest information associated with the authorized group. The server system includes a location data management system configured to receive location data, allowing a rider to publish location information to one or more other riders, and a user feedback interface configured to receive trip data from riders for publication, including information describing an actual route and user data associated with that route.
    Type: Application
    Filed: February 26, 2014
    Publication date: January 7, 2016
    Inventors: David J. Koenig, Joseph D. Tharaldson, Adam C. Koosmann, Christopher G. Wolf, William C. Fisher, Kim A. Weckert, John W. Callahan, Daren W. Herman, Todd L. Frostad, Gary L. Gustafson, Stephen G. Crain
  • Patent number: 9216637
    Abstract: A utility vehicle is disclosed having an electric drive. The drivetrain is comprised of batteries, a motor, a transaxle driven by the motor, a rear differential driven by the transaxle, and a prop shaft which is driven by the transaxle and drives a front differential. The batteries are provided in two groups and are supported on the frame of the vehicle.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: December 22, 2015
    Assignee: Polaris Industries Inc.
    Inventors: Stephen G. Crain, Joel M. Notaro
  • Patent number: 9162558
    Abstract: A utility vehicle is disclosed having an electric drive. The drivetrain is comprised of batteries, a motor, a transaxle driven by the motor, a rear differential driven by the transaxle, and a prop shaft which is driven by the transaxle and drives a front differential. The batteries are provided in two groups and are supported on the frame of the vehicle.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 20, 2015
    Assignee: Polaris Industries Inc.
    Inventors: Kurt E. Stenberg, Joel M. Notaro, Josh J. Leonard, Stephen G. Crain, Dennis P. Sabourin, Russ G. Olsen, Cory A. Wimpfheimer
  • Patent number: 9096133
    Abstract: A utility vehicle is disclosed having an electric drive. The drivetrain is comprised of batteries, a motor, a transaxle driven by the motor, a rear differential driven by the transaxle, and a prop shaft which is driven by the transaxle and drives a front differential. The batteries are provided in two groups and are supported on the frame of the vehicle. An on-board range extender is provided to charge the batteries and/or to provide power to the motor.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 4, 2015
    Assignee: Polaris Industries Inc.
    Inventors: Beat Kohler, Marcel Frei, Peter Johannes Erasmus, Stephen G. Crain, Travis N. Theiss, Stacey E. Stewart
  • Patent number: 8339006
    Abstract: An electric generator rotor having one or more permanent magnets coupled thereon. The permanent magnets provide a constant magnetic field in the rotor at all times, therein minimizing the effect of rotor residual magnetism on the start-up characteristics of the electric generator. The type and placement of the one or more permanent magnets on the rotor and/or magnetic field confinement techniques may be utilized to control spatial distribution of magnetic field within the rotor.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: December 25, 2012
    Assignee: McMillan Electric Company
    Inventors: Vincent Hall, Stephen G. Crain
  • Patent number: 8302724
    Abstract: An electric vehicle is disclosed having a frame, a plurality of ground engaging members, an electric motor, a front drive system, and a rear drive system. The electric motor is configured to provide power to at least a portion of the ground engaging members. The vehicle also comprises a plurality of batteries, an electronic controller, and a drive mode input. The drive mode input is operatively coupled to the electronic controller. The electronic controller operates the electric vehicle in one of a plurality of drive modes based on the drive mode input. In a first drive mode, the electronic controller specifies a first amount of motor braking to be applied by the electric motor, and in a second drive mode, the electronic controller specifies a second amount of motor braking to be applied by the electric motor. The second amount differs from the first amount.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: November 6, 2012
    Assignee: Polaris Industries Inc.
    Inventors: Brian R Gillingham, Joel M Notaro, Josh J Leonard, Stephen G Crain, Bradley R Morisch