Control device for internal combustion engine
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYusuke Nakayama, Yoshihisa Shinoda, Keisuke Sano
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Abstract
A control device is applied to an internal combustion engine capable of using CNG and gasoline by switching therebetween, and the CNG and the gasoline are associated, as fuel for use, with one and the other of two driving areas respectively, the driving areas being different from each other. The control device exceptionally switches the fuel for use from gasoline to CNG and implements an air-fuel ratio imbalance inspection (S6, S7), when the air-fuel ratio imbalance inspection is required for a CNG mode using CNG (S1), the engine is driving in a driving area (AR2) correlated to gasoline as fuel for use (S2), and gasoline mode using gasoline as fuel for use is ongoing (S3).
Claims8
A control device for internal combustion engine which is applied to an internal combustion engine capable of switching a plural kinds of fuel, comprising:
- a storage device which stores information where each fuel for use to be used is correlated to each driving area of the internal combustion engine;
- a fuel switch device which switches the fuel for use based on the information stored in the storage device;
- and
- an inspection device which implements for each of driving modes different from each other in the fuel for use, an inspection having a characteristic such that inspection accuracy changes depending on the driving areas different from each other, wherein
- the fuel switch device, when the inspection device implements the inspection, switches the fuel for use so that same level inspection accuracy is ensured in any driving mode, regardless of a correlation between the driving area and the fuel for use correlated by the information.
Dependencies are inferred from the claim text.