| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for controlling the power generation of an internal combustion engine in which, while securing a necessary electrical output, the electrical output is so controlled that the discharge of NO<SB>x</SB>from the internal combustion engine does not exceed an occlusion capacity of an NO<SB>x</SB>catalyst. <P>SOLUTION: During the operation of the engine, the amount of NO<SB>x</SB>storage in the NO<SB>x</SB>catalyst is computed at a specified cycle, and an NO<SB>x</SB>discharge guard is corrected in accordance with the amount of NO<SB>x</SB>occlusion. Thus, while securing a necessary electrical output, the electrical output is controlled so that the NO<SB>x</SB>discharge from the engine does not exceed the occlusion capacity of the NO<SB>x</SB>catalyst. Further, during the engine operation, an increment of NO<SB>x</SB>discharge per unit electrical output is computed at the specified cycle. If the increment of the NO<SB>x</SB>discharge per unit electrical output is an almost specified value, the electrical output is increased by generating power by an upper limit guard set for power generation torque variation in accordance with a guard for the NO<SB>x</SB>-discharge. If the increment of the NO<SB>x</SB>discharge per unit electrical output exceeds a specified value, the increment of the NO<SB>x</SB>discharge per unit electrical output is decreased by generating power by a lower limit guard set for power generation torque variation. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
