×

System for controlling drivetrain components to achieve fuel efficiency goals

  • US 6,957,139 B2
  • Filed: 02/11/2003
  • Issued: 10/18/2005
  • Est. Priority Date: 06/18/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for controlling a vehicle drivetrain, comprising:

  • a memory having stored therein an engine output characteristics map of an internal combustion engine and a contour associated with said map extending from a low engine load value to a high engine load value thereof;

    means for determining at least one engine operating parameter; and

    a control computer responsive to said at least one engine operating parameter to control shift points of a transmission coupled to said engine as said at least one engine operating parameter approaches said contour.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×