| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for limiting the output of an internal combustion engine during abnormality, capable of preventing uncomfortable feeling for a driver when an abnormality occurs in an internal combustion engine drive force outputting system and of carrying out retreat travel. SOLUTION: At initial abnormal time in an abnormal level 3 (No in S108, Yes in S110), an accelerator opening limit value Aaccp is converged to an initial limit value INIaccp (S114). Thus, since an output allowable range of the engine is limited in a first limit region, this can prevent the engine from being stopped for a short time immediately after occurrence of the abnormality. Then, the accelerator opening limit value Aaccp is shifted from the initial limit value INIaccp to a final limit value ENDaccp, in accordance with an engine operation history. Thus, while the region of high engine output is used as much as possible, the engine output is shifted to a second limit region preferable to retreat travel finally. As a result, a certain level of engine output can be secured immediately after occurrence of the abnormality, uncomfortable feeling for the driver can be prevented when the abnormality occurs, and the retreat travel can be carried out. COPYRIGHT: (C)2009,JPO&INPIT
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