Patents by Inventor Peter J. Dix

Peter J. Dix 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: 7104054
    Abstract: A system for damping the extension and retraction of a hydraulic cylinder of a work vehicle at the ends of the cylinder's stroke.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: September 12, 2006
    Assignee: CNH America LLC
    Inventor: Peter J. Dix
  • Patent number: 7042333
    Abstract: An access control system for work vehicles has a display, an operator input device and a computer configured to program individual vehicles keys to operate individual vehicles or groups of vehicles.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: May 9, 2006
    Assignee: CNH America LLC
    Inventors: Peter J. Dix, Marius Bojarski
  • Patent number: 6998956
    Abstract: A system and method for controlling access to a work vehicle includes limiting an unauthorized operator's access to the work vehicle by disabling an engine subsystem and additionally limiting access to another vehicle system such as an auxiliary fluid actuator, by disabling at least one of the auxiliary fluid actuators. In this manner, even if a thief hot wires the engine of the work vehicle, he will not be able to use the work vehicle since the engine and the fluid actuators and the fluid controller that controls the actuators are independently disabled.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: February 14, 2006
    Assignee: CNH America LLC
    Inventor: Peter J. Dix
  • Patent number: 6971463
    Abstract: A work vehicle having a hydrostatic drive system provides for the recovery and reuse of the vehicle's kinetic energy by conducting pressurized hydraulic fluid out of the hydrostatic drive system into an accumulator during vehicle deceleration, and conducting the pressurized fluid back into the drive system during vehicle acceleration to assist the vehicle's engine in accelerating the vehicle.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: December 6, 2005
    Assignee: CNH America LLC
    Inventors: Daniel B. Shore, Peter J. Dix
  • Patent number: 6952156
    Abstract: A method and system for controlling the operation of a vehicle is disclosed that includes a radio frequency transponder and a vehicle configured to respond to data stored in the transponder by preventing or disabling operation of the vehicle under certain conditions indicated by data stored in the transponder. A communications controller receives the data from the transponder, then monitors the operation of the vehicle to make sure it is operated within the limits that are stored in the transponder. By communicating with other controllers on the vehicle that are in charge of other subsystems, it receives information relating to whether the operational limits of the vehicle have been approached or exceeded, and takes appropriate action in that event, the action may include not enabling the vehicle initially, or disabling the vehicle, or causing an operator display to indicate which limit has been exceeded or approached.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: October 4, 2005
    Assignee: CNH America LLC
    Inventors: Mohammad J. Arshad, Alan D. Berger, Peter J. Dix
  • Publication number: 20040263316
    Abstract: An access control system for controlling access to a vehicle and reconfiguring the vehicle to disable or enable operator smart keys is disclosed. An electronic controller in the vehicle receives signals indicating the presence of a master smart key in the vehicle. Once it determines that a master key is present, it permits one or more individual operator smart keys to be programmed. The identification numbers of these smart keys are stored in an electronic memory of the vehicle. Operators who subsequently insert these keys into the vehicle's ignition will be able to start and operate the vehicle.
    Type: Application
    Filed: June 24, 2003
    Publication date: December 30, 2004
    Applicant: Case, LLC
    Inventors: Peter J. Dix, Marius Bojarski
  • Patent number: 6766236
    Abstract: A control system for a skid steer vehicle reads a load height sensor, a load amount sensor, and a vehicle speed sensor to derate the otherwise commanded acceleration, deceleration and turning rate on the vehicle when the vehicle has too great a load, too high a load, or the vehicle is going too fast.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: July 20, 2004
    Assignee: Case, LLC
    Inventors: Anthony J. Lamela, Brian E. Felsing, Peter J. Dix, John R. Harms, Hong-Chin Lin, Troy D. Bateman
  • Publication number: 20040118623
    Abstract: A work vehicle having a hydrostatic drive system provides for the recovery and reuse of the vehicle's kinetic energy by conducting pressurized hydraulic fluid out of the hydrostatic drive system into an accumulator during vehicle deceleration, and conducting the pressurized fluid back into the drive system during vehicle acceleration to assist the vehicle's engine in accelerating the vehicle.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 24, 2004
    Applicant: Case Corporation
    Inventors: Daniel B. Shore, Peter J. Dix
  • Patent number: 6718244
    Abstract: A skid steer vehicle has sprung suspensions, variable displacement pumps and motors connected to those pumps that drive the wheels on the vehicle as well as an electronic controller that receives signals that indicate fore-and-aft acceleration of the skid steer vehicle. Based on these signals, the controller determines whether the forward acceleration exceeds a predetermined value and locks up the rear suspensions if that value is exceeded. It also determines whether the forward deceleration exceeds a predetermined value and locks up the front suspensions if that value is exceeded. The signals can be provided by an accelerometer, a satellite receiver, wheel/motor speed sensors, sensors in the pumps that signal the specific displacement of the pumps such as their swash plate positions, or memory locations that contain previously calculated specific displacement commands that are used to drive the pumps to a particular specific displacement.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: April 6, 2004
    Assignee: Case, LLC
    Inventors: Hong-Chin Lin, Peter J. Dix, Anthony J. Lamela, Brian E. Felsing, Troy D. Bateman, Daniel B. Shore
  • Publication number: 20040017281
    Abstract: A system and method for controlling access to a work vehicle includes limiting an unauthorized operator's access to the work vehicle by disabling an engine subsystem and additionally limiting access to another vehicle system such as an auxiliary fluid actuator, by disabling at least one of the auxiliary fluid actuators. In this manner, even if a thief hot wires the engine of the work vehicle, he will not be able to use the work vehicle since the engine and the fluid actuators and the fluid controller that controls the actuators are independently disabled.
    Type: Application
    Filed: May 7, 2003
    Publication date: January 29, 2004
    Inventor: Peter J. Dix
  • Patent number: 6677854
    Abstract: A method for determining whether vehicle servicing or maintenance is required is disclosed. Vehicle information is downloaded to a remote maintenance computer via a wireless link. The information includes sensor data such as temperatures and pressures of fluid in the vehicle. The remote computer analyzes this information and determines what, if any maintenance is required. Once the maintenance is determined, the maintenance computer determines who should perform the maintenance, what supplies are required and when and where the maintenance should occur. The system is configured to schedule such maintenance for several different vehicles based on the information it has downloaded from those vehicles, the type of maintenance needed to determine the maintenance personnel, the parts and supplies, and the maintenance sites are available.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: January 13, 2004
    Assignee: Case, LLC
    Inventor: Peter J. Dix
  • Patent number: 6663114
    Abstract: A skid steer vehicle has sprung suspensions that can be locked to prevent vertical movement with respect to the chassis of the vehicle. The operator controls include a switch that the operator can manipulate to lock the suspensions on command. The switch is mounted on a joystick that is used to perform other vehicle functions such as moving the vehicle, raising loader arms, or tilting the bucket or other implement attached to the loader arms. The switch is located on the joystick such that the operator can manipulate the switch without having to remove his hands from the joystick.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: December 16, 2003
    Assignee: Case, LLC
    Inventors: Anthony J. Lamela, Troy D. Bateman, Brian E. Felsing, Hong-Chin Lin, Peter J. Dix, Daniel B. Shore
  • Publication number: 20030210128
    Abstract: A system and method for permitting different authorized degrees of access to two or more users of a vehicle in a fleet of vehicles. Each user has a radio (RF) transponder coupled to an ignition key that operates the ignition switch of the vehicle. The transponder stores data indicating the degree of operating access authorized to each user for the vehicle.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 13, 2003
    Inventor: Peter J. Dix
  • Patent number: 6634445
    Abstract: A skid steer vehicle includes a chassis mounted on four sprung suspensions that are controlled by an electronic controller. The controller monitors the speed of the vehicle and locks the suspensions when the vehicle falls below a predetermined speed.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: October 21, 2003
    Assignee: Case Corporation
    Inventors: Peter J. Dix, Hong-Chin Lin, Brian E. Felsing, Troy D. Bateman, Anthony J. Lamela, Daniel B. Shore
  • Patent number: 6633804
    Abstract: A skid steer vehicle has a sprung suspension system including four wheels mounted on four swing arms that are pivotally coupled to the chassis of the vehicle. An electronic controller is connected both to position sensors coupled to the swing arms to sense the position of the swing arms and wheels with respect to the chassis and also to hydraulic cylinders that control the position of the swing arms and wheels. The electronic controller determines the average position of each suspension and controls the flow of fluid to the cylinders to keep the swing arms and wheels at their proper target height when vehicle load changes.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: October 14, 2003
    Assignee: Case Corporation
    Inventors: Peter J. Dix, Anthony J. Lamela, Brian E. Felsing, Troy D. Bateman, Hong-Chin Lin, Daniel B. Shore
  • Publication number: 20030189482
    Abstract: A system and method for permitting different authorized degrees of access to two or more users of a vehicle in a fleet of vehicles. Each user has a radio (RF) transponder coupled to an ignition key that operates the ignition switch of the vehicle. The transponder stores data indicating the degree of operating access authorized to each user for the vehicle.
    Type: Application
    Filed: April 3, 2003
    Publication date: October 9, 2003
    Inventors: Mohammad J. Arshad, Alan D. Berger, Peter J. Dix
  • Publication number: 20030121183
    Abstract: A skid steer vehicle with sprung suspensions is configured to lock the suspensions whenever the operator manipulates a manual control that generates a signal to move the loader arms or the bucket of the vehicle. The operator control, such as a joystick, sends a signal to an electronic controller indicating that the operator has moved the control and is thereby requesting the loader arms or bucket to move. The electronic controller responds to this signal by moving the loader arms or bucket and simultaneously locking the suspensions.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 3, 2003
    Inventors: Hong-Chin Lin, Peter J. Dix, Troy D. Bateman, Brian E. Felsing, Anthony J. Lamela, Daniel B. Shore
  • Publication number: 20030125859
    Abstract: A skid steer vehicle has sprung suspensions, variable displacement pumps and motors connected to those pumps that drive the wheels on the vehicle as well as an electronic controller that receives signals that indicate lateral acceleration of the skid steer vehicle during turns. The controller determines whether the lateral acceleration exceeds a predetermined value, and locks up the outboard suspensions if that value is exceeded. The signals can be provided by an accelerometer, a satellite receiver, wheel/motor speed sensors, sensors in the pumps that signal the specific displacement of the pumps (such as their swash plate position, or memory locations that contain previously calculated specific displacement commands that are used to drive the pumps to a particular displacement.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Peter J. Dix, Hong-Chin Lin, Troy D. Bateman, Brian E. Felsing, Anthony J. Lamela, Daniel B. Shore
  • Publication number: 20030125858
    Abstract: A skid steer vehicle has a sprung suspension system including four wheels mounted on four swing arms that are pivotally coupled to the chassis of the vehicle. An electronic controller is connected both to position sensors coupled to the swing arms to sense the position of the swing arms and wheels with respect to the chassis and also to hydraulic cylinders that control the position of the swing arms and wheels. The electronic controller determines the average position of each suspension and controls the flow of fluid to the cylinders to keep the swing arms and wheels at their proper target height when vehicle load changes.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 3, 2003
    Inventors: Hong-Chin Lin, Daniel B. Shore, PETER J. DIX, ANTHONY J. LAMELA, BRIAN E. FELSING, TROY D. BATEMAN
  • Publication number: 20030125856
    Abstract: A skid steer vehicle has sprung suspensions, variable displacement pumps and motors connected to those pumps that drive the wheels on the vehicle as well as an electronic controller that receives signals that indicate fore-and-aft acceleration of the skid steer vehicle. Based on these signals, the controller determines whether the forward acceleration exceeds a predetermined value and locks up the rear suspensions if that value is exceeded. It also determines whether the forward deceleration exceeds a predetermined value and locks up the front suspensions if that value is exceeded. The signals can be provided by an accelerometer, a satellite receiver, wheel/motor speed sensors, sensors in the pumps that signal the specific displacement of the pumps such as their swash plate positions, or memory locations that contain previously calculated specific displacement commands that are used to drive the pumps to a particular specific displacement.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Hong-Chin Lin, Peter J. Dix, Anthony J. Lamela, Brian E. Felsing, Troy D. Bateman, Daniel B. Shore