Honda Giken Kogyo Kabushiki Kaisha

Kuniaki Murata

Osamu Yamamoto

Takashi Nishihara

An apparatus for controlling a DC motor connected to an intake throttle valve in an internal combustion engine to detect an actual opening degree of the intake throttle valve and to match the actual opening degree with a command opening degree. The apparatus includes a feedback loop for defining a feedback signal indicative of a command to converge the actual opening degree of the control member to the command opening degree by reception of the command opening degree delivered by a command opening degree generating means and the actual opening degree delivered by an actual opening degree detecting means, a combined-signal generating means for combining the feedback signal defined by the feedback loop with the command opening degree delivered by the command opening degree generating means, and a motor driving means for driving the DC motor in response to an output from the combined-signal generating means. Thus, it is possible to converge the actual opening degree of the intake throttle valve to the command opening degree with a good responsiveness and a good positioning accuracy.

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Saitama, Japan

Kuniaki Murata