Electronic throttle control device of internal-combustion engine
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsYasuhiko Ishida, Shunji Murao
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Abstract
An electronic throttle control device of an internal-combustion engine includes an electronic control unit (ECU) having a judgment function portion that judges whether an engine control system and an engine driving condition are normal, and plural kinds of pre-set characteristic conversion coefficient maps used to compute a command value of a target throttle opening degree from a manipulation quantity of the accelerator pedal. The command value of the target throttle opening degree is computed using a specific map selected from the plural kinds of characteristic conversion coefficient maps depending on the judgment result of the judgment function portion.
Claims7
An electronic throttle control device of an internal-combustion engine that controls an engine output by computing a quantity of a throttle opening degree on the basis of a manipulation quantity of an accelerator pedal by a driver by means of a computation portion in an electronic control unit, and by controlling a throttle opening degree using a specific actuator on the basis of a computed command value of the throttle opening degree,
- wherein the electronic control unit includes:
- a judgment function portion that judges whether an engine control system and an engine driving condition are normal;
- and
- plural kinds of pre-set characteristic conversion coefficient maps used to compute the command value of a target throttle opening degree from the manipulation quantity of the accelerator pedal, and
- wherein the command value of the target throttle opening degree is computed by selecting a specific map from the plural kinds of characteristic conversion coefficient maps depending on a judgment result of the judgment function portion.
Dependencies are inferred from the claim text.