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Engine system control apparatus and vehicle

  • US 9,771,858 B2
  • Filed: 11/18/2015
  • Issued: 09/26/2017
  • Est. Priority Date: 11/28/2014
  • Status: Active Grant
First Claim
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1. An engine system control apparatus of an engine system, the engine system being mounted on a vehicle and including an engine and a turbocharger, the engine including a combustion chamber, the turbocharger including a turbine, a compressor, and a variable nozzle, the turbine being in communication with the combustion chamber and being rotated by exhaust gas exhausted from the combustion chamber, the compressor being rotated integrally with the turbine and pressurizing intake air to deliver the pressurized intake air to the combustion chamber, and the variable nozzle being provided in an exhaust gas flow passage of the turbine and varying flow passage area of the exhaust gas, the engine system control apparatus comprising:

  • a driving state identifier configured to identify a driving state of the vehicle from a plurality of driving states;

    a surge determiner configured to determine whether a surge condition as a condition under which a surge noise is generated is satisfied, based on the identified driving state of the vehicle and an operating state of the engine; and

    a variable nozzle controller configured to control, based on the identified driving state of the vehicle and the operating state of the engine, an opening degree of the variable nozzle to be varied in an open direction, upon determination by the surge determiner that the surge condition is satisfied,wherein the plurality of driving states of the vehicle include at least one vehicle stop state where the vehicle is stopped and at least one vehicle running state where the vehicle is running.

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