Method and arrangement for controlling a vehicle
First Claim
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).
1 Assignment
0 Petitions
Accused Products
Abstract
A method and an arrangement for controlling the drive power of a vehicle are suggested wherein, on the basis of a desired value for the torque to be outputted by the drive unit, the following are influenced in the sense of preparing the desired value: the ratio of the air supplied to the drive unit and of the fuel supplied as well as the ignition angle and/or the metering of fuel to the individual cylinders. The interventions into the air/fuel ratio as well as the ignition angle and/or the metering of fuel are synchronized with each other so that the torque-changing effects of the individual interventions occur essentially at the same time point especially at the same inducting cylinder.
136 Citations
10 Claims
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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). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An arrangement for controlling a toque of an internal combustion engine to a changeable pregiven desired value (Mides), the arrangement comprising:
-
means for controlling at 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); means for 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 respective settings of said air/fuel ratio (λ
), said ignition angle (α
z) and said number of deactivated cylinders (XZ); and
,means for 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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Specification