Patents by Inventor Evan S. Boberg

Evan S. Boberg 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: 6332257
    Abstract: A method of converting an existing vehicle powertrain including a manual transmission to a hybrid powertrain system with an automated powertrain transmission. The first step in the method of attaching a gear train housing to a housing of said manual transmission, said gear train housing receiving as end of drive shaft of said transmission and rotatably supporting a gear train assembly. Secondly, mounting an electric motor/generator to said gear train housing and attaching a motor/generator drive shaft of said electric motor/generator to said gear train assembly. Lastly, connecting an electro-mechanical clutch actuator to a friction clutch mechanism of said manual transmission.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: December 25, 2001
    Assignee: Chrysler Corporation
    Inventors: Richard G. Reed, Jr., Evan S. Boberg, Robert E. Lawrie, Francois J. Castaing
  • Patent number: 6155365
    Abstract: A hybrid electric powertrain system is provided including a transmission for driving a pair of wheels of a vehicle and a heat engine and an electric motor/generator coupled to the transmission. A friction brake system is provided for applying a braking torque to said vehicle. A controller unit generates control signals to the electric motor/generator and the friction brake system for controllably braking the vehicle in response to a drivers brake command. The controller unit determines and amount of regenerative torque available and compares this value to a determined amount of brake torque requested for determining the control signals to the electric motor/generator and the friction brake system.
    Type: Grant
    Filed: May 12, 1998
    Date of Patent: December 5, 2000
    Assignee: Chrysler Corporation
    Inventor: Evan S. Boberg
  • Patent number: 6000706
    Abstract: An independent suspension system for a vehicle driving axle is disclosed which includes a leading lower control arm which pivots about an axis which is nearly perpendicular to the upper control arm pivot axis and which is nearly perpendicular to the vehicle center line. By providing this perpendicular relationship between the pivot axes of the upper and lower control arms, an imaginary steering point results. This new imaginary steering point allows for improved vertical wheel travel, while minimizing the distance of half shaft plunge. By improving the vertical wheel travel and minimizing the distance of half shaft plunge, the ride of the vehicle is improved.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: December 14, 1999
    Assignee: Chrysler Corporation
    Inventors: Evan S. Boberg, Delbert D. DeRees, Ralph A. Porcaro
  • Patent number: 5959420
    Abstract: A method is provided for controlling a power train system for a hybrid electric vehicle. The method includes a torque distribution strategy for controlling the engine and the electric motor. The engine and motor commands are determined based upon the accelerator position, the battery state of charge and the amount of engine and motor torque available. The amount of torque requested for the engine is restricted by a limited rate of rise in order to reduce the emissions from the engine. The limited engine torque is supplemented by motor torque in order to meet a torque request determined based upon the accelerator position.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: September 28, 1999
    Assignee: Chrysler Corporation
    Inventors: Evan S. Boberg, Brian P. Gebby
  • Patent number: 5943918
    Abstract: A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: August 31, 1999
    Assignee: Chrysler Corporation
    Inventors: Richard G. Reed, Jr., Evan S. Boberg, Robert E. Lawrie, Francois J. Castaing
  • Patent number: 5402859
    Abstract: A partially sprung differential gear system for a driving axle independent or deDion suspension system which embodies the mounting of the differential gear system to the suspension system such that the differential gear unit thereof travels in a ratio proportional to the wheel travel. The arrangement provides increased ground clearance and wheel travel for the driving axle independent suspension system.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: April 4, 1995
    Assignee: Chrysler Corporation
    Inventors: Evan S. Boberg, Gerald P. Hentschel
  • Patent number: 4826188
    Abstract: A rear wheel steering driving mechanism is provided for a vehicle having a front wheel steering system and a rear wheel steering system. The drive mechanism includes an input shaft adapted to be operatively connected to the front wheel steering system for rotation thereby whenever the front wheel steering system is activated and an output shaft adapted to be operably connected to the rear wheel steering system to selectively transmit front wheel steering system activity to the rear wheel system.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: May 2, 1989
    Assignee: Chrysler Motors Corporation
    Inventors: Evan S. Boberg, Larry D. Zahn
  • Patent number: 4813694
    Abstract: A rear wheel steering driving mechanism is provided for a vehicle having a front wheel steering system and a rear wheel steering system. The drive mechanism includes an input shaft adapted to be operatively connected to the front wheel steering system for rotation thereby whenever the front wheel steering system is activated and an output shaft adapted to be operably connected to the rear wheel steering system to selectively transmit front wheel steering system activity to the rear wheel system. Stop pins are provided to maintain a loose crank pin in an initial position during the initial portion of input shaft rotation.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: March 21, 1989
    Assignee: Chrysler Motors Corporation
    Inventors: Evan S. Boberg, Larry D. Zahn