| 摘要 |
A throttle control apparatus for an internal combustion engine capable of controlling an opening degree of an electronic control type throttle with high accuracy by employing an inexpensive A/D converter. The apparatus includes a throttle opening degree detector, and a controller for controlling the opening degree to a target value in dependence on operation state of the engine. The throttle opening degree detector includes a throttle opening degree sensor, an offset unit for transforming the sensor voltage into a plurality of offset-weighted voltages (V1, . . . , V4), an A/D converter and an adder for adding the converted offset-weighted voltages (V1 to V4) wherein a sum value resulting from addition of the offset-weighted voltages (V1, . . . , V4) is detected as the opening degree of the throttle to be controlled.
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