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Control system for internal combustion engine

  • US 20030116130A1
  • Filed: 05/23/2002
  • Published: 06/26/2003
  • Est. Priority Date: 05/25/2001
  • Status: Active Grant
First Claim
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1. An engine control system for controlling an internal combustion engine mounted on a vehicle, said engine control system comprising:

  • throttle opening detection means for detecting a throttle opening of the engine;

    rotational speed detection means for detecting a rotational speed of the engine;

    prediction means for predicting an engine load and a change in said engine load with time in a specified period of time from an occurrence of driver'"'"'s operation for causing an increase in throttle opening on the basis of said throttle opening and said rotational speed when said occurrence of driver'"'"'s operation is detected on the basis of a result of detection by said throttle opening detection means;

    filter means for extracting a resonant frequency component that is coincide with a resonant frequency of a driveline of the vehicle from of said change in engine load predicted by said prediction means; and

    torque control means for performing torque reduction control which reduces engine torque by an amount meeting said resonant frequency component at a torque reduction timing corresponding to an occurrence of said resonant frequency component.

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