Patents by Inventor Steve Hung

Steve Hung 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).

  • Fuel efficient power steering control system and method
    Patent number: 6988581
    Abstract: A system and method of controlling flow outlet from a hydraulic pump. The system provides the level of flow required to execute the driver's steering commands. This method of control reduces the average torque requirement of the hydraulic pump thereby improving fuel economy by unloading the vehicle's accessory drive, while also providing the variable assist power steering feature. The Fuel Efficient Power Steering (FEPS) control algorithm is an optimal method of regulating flow by actuating the electronic flow control device in the pump assembly. This electronic flow control device allows an increase in hydraulic fluid flow to the steering gear in order to increase the provided assist and to reduce hydraulic fluid flow to the steering gear to improve fuel economy, if no additional assist is needed. The calculation of the desired flow control device current is primarily based on vehicle speed and steering wheel rate.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: January 24, 2006
    Assignee: VisteonGlobal Technologies, Inc.
    Inventors: Dirk Croughs, Andreas Holthoff, Peter Kocybik, Dale Killins, Steve Hung
  • Fuel efficient power steering control system and method
    Publication number: 20040226769
    Abstract: The present invention provides a system and method of controlling flow outlet from the hydraulic pump to provide the level of flow required to execute the driver's steering command. This method of control reduces the average torque requirement of the hydraulic pump thereby improving fuel economy by unloading the vehicle's accessory drive, while also providing the variable assist power steering feature. The Fuel Efficient Power Steering (FEPS) control algorithm is an optimal method of regulating flow by actuating the electronic flow control device in the pump assembly. This electronic flow control device allows an increase in hydraulic fluid flow to the steering gear in order to increase the provided assist and to reduce hydraulic fluid flow to the steering gear to improve fuel economy, if no additional assist is needed. The calculation of the desired flow control device current is primarily based on vehicle speed and steering wheel rate.
    Type: Application
    Filed: November 13, 2003
    Publication date: November 18, 2004
    Applicant: Visteon Global Technologies, Inc.
    Inventors: Dirk Croughs, Andreas Holthoff, Peter Kocybik, Dale Killins, Steve Hung
  • Oxidative desulfurization of fossil fuels with ultrasound
    Patent number: 6402939
    Abstract: Fossil fuels are combined with a hydroperoxide in an aqueous-organic medium and subjected to ultrasound, with the effect of oxidizing the sulfur compounds in the fuels to sulfones. Due to their high polarity, the sulfones thus formed are readily removed from the fuels by polar extraction. The process is thus highly effective in removing sulfur compounds from the fuels.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: June 11, 2002
    Assignee: Sulphco, Inc.
    Inventors: Teh Fu Yen, Hai Mei, Steve Hung-Mou Lu