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Method and arrangement for controlling a vehicle

  • US 5,692,471 A
  • Filed: 09/09/1996
  • Issued: 12/02/1997
  • Est. Priority Date: 03/07/1994
  • Status: Expired due to Term
First Claim
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1. A method of controlling a torque of an internal combustion engine to a changeable pregiven desired value (Mides), the method comprising the steps of:

  • controlling at least one of the following parameters which influence said torque of said engine;

    (a air/fuel ratio (λ

    );

    (b) ignition angle (α

    z); and

    ,(c) number of deactivated cylinders (XZ);

    so that said torque approaches said desired value (Mides) thereof by performing the following additional steps;

    forming a desired value (λ

    des, α

    zdes, XZdes) for said at least one of said parameters (λ

    , α

    z, XZ) in dependence upon said desired value (Mides) of said torque, the engine load (tl) and the respective settings of said air/fuel ratio (λ

    ), said ignition angle (α

    z) and said number of deactivated cylinders (XZ); and

    ,controlling said at least one of said parameters (λ

    , α

    z, XZ) to said at least one of said desired values (λ

    des, α

    zdes, XZdes) thereby causing the torque of said engine to approach said desired value (Mides).

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