| 摘要 |
A control apparatus which is capable of ensuring both high-level stability and accuracy of control and reducing manufacturing costs thereof and computation load thereon, even when controlling a controlled object having extremal characteristics or a controlled object of a multi-input multi-output system. The control apparatus is comprised of an onboard model analyzer and a cooperative controller. The onboard model analyzer, based on a controlled object model defining the relationships between an intake opening angle and an exhaust reopening angle, and an indicated mean effective pressure, calculates first and second response indices and indicative of a correlation therebetween, respectively. The cooperative controller calculates the intake opening angle and the exhaust reopening angle with predetermined algorithms such that the indicated mean effective pressure is caused to converge to its target value, and determines the increasing/decreasing rate and the increasing/decreasing direction of the aforementioned angles according to the first and second response indices.
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