| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic throttle control device for avoiding an unintended increase of an engine speed of an internal combustion engine or engine stall by detecting the malfunction of a throttle opening sensor. SOLUTION: The electronic throttle control device comprises the first and second throttle opening sensors 4a, 4b for detecting the opening of a throttle valve 34 which adjusts the amount of air to be supplied to the internal combustion engine, a throttle control means for controlling the drive of the throttle valve 34, first and second accelerator opening sensors 1a, 1b for detecting the operation amount of an accelerator pedal, and an ECU 2 for computing control parameters for the internal combustion engine in accordance with internal combustion engine operation information including an accelerator opening and a throttle opening and controlling a throttle actuator 3 so that a throttle opening position corresponds to a target throttle opening position which the control parameters include. The ECU 2 reliably detects sensor output malfunction due to a contact failure of the throttle opening sensor or the accelerator opening sensor. COPYRIGHT: (C)2007,JPO&INPIT
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