Title:
NUMBER OF REVOLUTION CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP3239379
Kind Code:
B2
Abstract:
PURPOSE: To correct non-linearity of torque/throttle valve opening characteristics when the opening of a throttle valve is regulated to control the number of revolutions of an internal combustion engine by determining a deviation between the actual number of revolutions and the target number of revolutions of the internal combustion engine and performing PID control based on the deviation.
CONSTITUTION: In torque/throttle valve opening characteristics, the characteristics are divided classified by the region of a predetermined throttle valve opening, and a change in a gradient is brought into a state similar to a straight line in each division region. Based on inclination of a straight line similar to a straight line in an arbitrary region, inclination of a straight line similar to a straight line in each region is determined. An inverse number of inclination of a straight line in each region is predetermined as a correction factor in each region. A PID control computing formula corresponding to an arbitrary region is predetermined. After PID computation is performed according to the PID control computing formula, a comparing result is corrected according to the correction factor to decide a target throttle valve opening.
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Inventors:
Kouta Otoshi
Application Number:
JP20163291A
Publication Date:
December 17, 2001
Filing Date:
August 12, 1991
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
F02D41/14; F02D45/00; (IPC1-7): F02D41/14; F02D45/00
Domestic Patent References:
| JP2277943A | ||||
| JP62153089A |
Attorney, Agent or Firm:
Hironobu Onda