Patents by Inventor Zhao Zilai

Zhao Zilai 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).

  • Method and apparatus for compensating drive current for an electric motor vehicle steering system
    Patent number: 6661191
    Abstract: An apparatus and method for a steering system which compensates a drive current for certain variables in a steer-by-wire and electrical power assist steering system. The present invention utilizes a steering wheel angle sensor, a road wheel angle sensor, and a controller for determining a precise time and amount of compensation for the drive current.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: December 9, 2003
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Bing Zheng, Zhao Zilai
  • Method and apparatus for compensating drive current for an electric motor vehicle steering system
    Publication number: 20030141835
    Abstract: An apparatus and method for a steering system which compensates a drive current for certain variables in a steer-by-wire and electrical power assist steering system. The present invention utilizes a steering wheel angle sensor, a road wheel angle sensor, and a controller for determining a precise time and amount of compensation for the drive current.
    Type: Application
    Filed: January 30, 2002
    Publication date: July 31, 2003
    Inventors: Bing Zheng, Zhao Zilai