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System for controlling drivetrain components to achieve fuel efficiency goals

  • US 6,436,005 B1
  • Filed: 07/14/2000
  • Issued: 08/20/2002
  • Est. Priority Date: 06/18/1998
  • Status: Expired due to Term
First Claim
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1. A system for controlling a vehicle drivetrain, comprising:

  • a memory having stored therein an engine output characteristics map for an internal combustion engine and a number of fuel consumption contours associated with said map; and

    means for establishing a region of said engine output characteristics map wherein engine operation is undesirable, said region defining a first border as a function of at least one of said fuel consumption contours and a second border intersecting said first border.

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