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Hybrid controls architecture

  • US 9,718,454 B2
  • Filed: 11/21/2013
  • Issued: 08/01/2017
  • Est. Priority Date: 11/21/2013
  • Status: Active Grant
First Claim
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1. A method of controlling a hybrid electric vehicle powertrain, the method comprising:

  • iteratively determining an engine output target and a battery output target with one or more electronic controllers the act of iteratively determining comprising operating the one or more controllers to determine;

    a total output demanded of the powertrain based at least in part upon an operator input,a first battery output target based upon a battery state of charge, independent of the operator input,a first engine output target based upon the total output demanded and the first battery output target,a second engine output target based upon the first engine output target and an engine constraint,a second battery output target based upon the total output demanded and the second engine output target, anda third battery output target based upon the second battery output target and a battery or motor/generator constraint; and

    operating the one or more electronic controllers to control an internal combustion engine using an engine control command constrained by the iterative determination of the first engine output target and the second engine output target and to control a motor/generator of the powertrain using a motor/generator command constrained by the iterative determination of the first battery output target, the second battery output target[s], and the third battery output target, and being effective to extend life of the battery.

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