Throttle controlling device
AssigneeHitachi, Ltd.
InventorsYasuhiro Kamimura, Yasushi Sasaki, Norio Tomita, Tsugio Tomita, Syuuichi Nakano
Life of this patent
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Abstract
An electronic control throttle body has a default mechanism for securing the self-propelling of a vehicle at the time of faulty. A throttle control unit controls the position of a throttle valve by using a motor on the basis of a target throttle valve opening degree obtained by an engine control unit. In this respect, when the target throttle valve opening degree inputted from the engine control unit crosses over a default opening degree f0 of a default mechanism, an integration value having been added is set to 0, and an integration value having been calculated hereinafter is added to the set value to thereby perform a feedback control.
Claims4
In a throttle control apparatus which controls a position of a throttle valve of an electronic control throttle body having a default mechanism for securing self-propelling of a vehicle at a time of faulty by using an actuator on a basis of a target throttle valve opening degree obtained by an engine control unit, wherein
- when a target throttle valve opening degree inputted from said engine control unit crosses over a default opening degree of said default mechanism, a correction value having been added is set to an initial setting value, and a correction value having been calculated hereinafter is added to the initial setting value to thereby perform a feedback control.
Dependencies are inferred from the claim text.