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Adaptive powertrain braking control with grade, mass, and brake temperature

  • US 6,625,535 B2
  • Filed: 08/17/2001
  • Issued: 09/23/2003
  • Est. Priority Date: 08/17/2001
  • Status: Expired due to Term
First Claim
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1. A method of controlling a level of powertrain braking in an internal combustion engine of a vehicle with a transmission and driven wheels, comprising the steps of:

  • determining a vehicle mass;

    determining a road load; and

    shifting said transmission based on said vehicle mass and said road load to achieve a desired braking load.

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