Patents by Inventor Sigvard Zetterstroem

Sigvard Zetterstroem 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).

  • Publication number: 20070131474
    Abstract: A suspension assembly for a vehicle wheel is provided with a hub assembly for supporting a wheel for rotation. A first control arm is pivotally connected to the hub assembly and a chassis of the vehicle. An actuator is connected to the chassis and the hub assembly for translating the hub assembly relative to the chassis. A linkage is connected to the chassis and the hub assembly proximate to the actuator for reducing transverse loads and torques applied to the actuator.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Sigvard Zetterstroem
  • Publication number: 20070131473
    Abstract: A passenger vehicle, a steering system, and a method for controlling the steering system are provided for a front wheel steering mode and an all wheel steering mode that provides parallel steering and opposed wheel steering. The front wheel steering permits both linear and rotational translation of the vehicle. The parallel all wheel steering may be utilized for linear translation of the vehicle while rotational translation is reduced for optimizing stability of the vehicle. The opposed wheel steering may be utilized for minimizing a vehicle turn radius.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 14, 2007
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Mats Jonasson, Sigvard Zetterstroem
  • Patent number: 6641151
    Abstract: A suspension system for vehicle wheels is disclosed including a tubular spring, a link arm for connecting a wheel frame for mounting the wheel to a vehicle body to the wheel spindle carrying the wheel itself, the link arm disposed at one end of the tubular spring and a stabilizer disposed inside the tubular spring and adapted to protrude from the end of the tubular spring.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: November 4, 2003
    Assignee: Volvo Personvagnar AB
    Inventor: Sigvard Zetterström
  • Patent number: 6588779
    Abstract: An arrangement for the suspension of a motor vehicle wheel having a wheel-bearing housing for bearing the wheel, a lower link arm for connecting the bodywork of the motor vehicle and a lower part of the wheel-bearing housing, and an upper link arm for connecting the bodywork and an upper part of the wheel-bearing housing. The arrangement further includes an additional connection between the bodywork and the wheel-bearing housing and a coupling link that is substantially rigid in the vertical direction for connecting the additional connection and lower link arm. The improved arrangement is especially suitable for a rear wheel suspension in a motor vehicle, thereby permitting a high degree of longitudinal softness and high windup strength.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: July 8, 2003
    Assignee: Volvo Car Corporation
    Inventors: Anders Sandahl, Sigvard Zetterström
  • Patent number: 6398451
    Abstract: Apparatus is disclosed for mounting a spring to a connecting arm forming a portion of a vehicle wheel suspension in which the apparatus includes a connector affixed to the end of the spring and disposed on one side of the connecting arm, a lock disposed on the other side of the connecting arm, and fasteners extending through the connecting arm for attaching the connector to the lock.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 4, 2002
    Assignee: Volvo Personvagnar AB
    Inventor: Sigvard Zetterström
  • Patent number: 6386553
    Abstract: An arrangement for the suspension of a wheel of an automotive vehicle is disclosed. The wheel is connected to a propulsion device for driving the vehicle and a braking device for braking each individual wheel. The invention has sensors for detecting at least the angular steering displacement of the vehicle required by the vehicle driver, two steering link arms fitted between said body and attachment points in the wheel, positioned on both sides of an imaginary vertical line running through the center of the wheel, and a control unit for processing signals from the sensors and for actuating the steering link arms for adjustment of the wheel in response to the signals and the current operating state of the vehicle. Through the invention, an improved, integrated wheel suspension unit for automotive vehicles is provided, particularly allowing dynamic wheel alignment adjustment and adjustment of the angular steering displacement of each individual wheel of the vehicle.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: May 14, 2002
    Assignee: Volvo Personvagnar AB
    Inventor: Sigvard Zetterström