Patents by Inventor Je-Wei Chang

Je-Wei Chang 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).

  • Fleet maintenance method and in-vehicle communication system
    Patent number: 8170747
    Abstract: A fleet maintenance method for generating a suggested speed for each vehicle in a fleet to maintain the vehicle in the fleet is provided. In the fleet maintenance method, vehicles are clustered into a plurality of sub-fleets, and in each sub-fleet, one vehicle is selected as a leader vehicle and the other vehicles are considered as member vehicles. Besides, a position coordinate and a speed of each vehicle in each sub-fleet are obtained, and the position coordinate is converted into a corresponding linear coordinate. In addition, a sub-fleet gravity center of each sub-fleet and a fleet gravity center of the entire fleet are calculated according to the linear coordinates. Moreover, a suggested speed of each leader vehicle is generated according to a gravity center distance of the leader vehicle, and a suggested speed of each member vehicle is generated.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: May 1, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chien Chen, Ho-Wei Tsai, Je-Wei Chang, Rong-Hong Jan, Hsia-Hsin Li
  • FLEET MAINTENANCE METHOD AND IN-VEHICLE COMMUNICATION SYSTEM
    Publication number: 20100268445
    Abstract: A fleet maintenance method for generating a suggested speed for each vehicle in a fleet to maintain the vehicle in the fleet is provided. In the fleet maintenance method, vehicles are clustered into a plurality of sub-fleets, and in each sub-fleet, one vehicle is selected as a leader vehicle and the other vehicles are considered as member vehicles. Besides, a position coordinate and a speed of each vehicle in each sub-fleet are obtained, and the position coordinate is converted into a corresponding linear coordinate. In addition, a sub-fleet gravity center of each sub-fleet and a fleet gravity center of the entire fleet are calculated according to the linear coordinates. Moreover, a suggested speed of each leader vehicle is generated according to a gravity center distance of the leader vehicle, and a suggested speed of each member vehicle is generated.
    Type: Application
    Filed: August 10, 2009
    Publication date: October 21, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chien Chen, Ho-Wei Tsai, Je-Wei Chang, Rong-Hong Jan, Hsia-Hsin Li